Display panel and display device

Abstract

To provide a display panel and a display device.SOLUTION: A display panel includes subpixels with a first color, subpixels with a second color, and a pixel defining layer. The pixel defining layer includes a plurality of openings. Each subpixel with the first color includes a first effective light-emitting region. Each subpixel with the second color includes a second effective light-emitting region. The area of the second effective light-emitting region is smaller than the area of the first effective light-emitting region. Each subpixel with the first color includes a light-emitting layer with the first color in the opening and on the pixel defining layer. Each subpixel with the second color includes a light-emitting layer with the second color in the opening and on the pixel defining layer. The area ratio of the orthogonal projection on the base substrate between the light-emitting layer with the first color and the first effective light-emitting region is smaller than the area ratio of the orthogonal projection on the base substrate between the light-emitting layer with the second color and the second effective light-emitting region. In one example, since the area ratio between the light-emitting layers of the subpixels with the different colors and the effective light-emitting region is different, the deviation due to an evaporation process is kept more homogenous with respect to each subpixel.SELECTED DRAWING: Figure 1A

Description

[Technical Field]

[0001] This application claims priority from Chinese Patent Application No. 202010902686.9 filed on September 1, 2020, the entire contents of which are incorporated herein by reference for all purposes.

[0002] At least one embodiment of the present disclosure relates to a display panel and a display device. [Background technology]

[0003] Organic light-emitting display devices are considered to be a promising next-generation display technology due to their advantages such as light weight, thinness, bendability, low power loss, wide color gamut, high contrast, etc. Currently, how to improve the display quality of organic light-emitting display devices is the focus of research and development on organic light-emitting display devices. Summary of the Invention [Means for solving the problem]

[0004] At least one embodiment of the present disclosure provides a display panel and a display device.

[0005] At least one embodiment of the present disclosure provides a display panel including a base substrate, a plurality of first color sub-pixels located on the base substrate, a plurality of second color sub-pixels, and a pixel defining layer. the first color subpixels are arranged in a first direction to form a plurality of first color subpixel rows, the first color subpixel rows being arranged in a second direction, and adjacent first color subpixel rows are offset from each other in the first direction; the second color subpixels are arranged in the display area to form an array along the first and second directions, four second color subpixels surrounding one first color subpixel; the pixel definition layer is arranged in the display area and the peripheral region and includes a plurality of openings to define effective light-emitting areas of the plurality of subpixels, the first color subpixels having a plurality of first effective light-emitting areas, and the second color subpixels having a plurality of second effective light-emitting areas, and an area of ​​one second effective light-emitting area is smaller than an area of ​​one first effective light-emitting area. the plurality of first color subpixels comprise a plurality of first color light-emitting layers located in corresponding openings and on the pixel definition layer surrounding the corresponding openings, the plurality of second color subpixels comprise a plurality of second color light-emitting layers located in corresponding openings and on the pixel definition layer surrounding the corresponding openings, the plurality of first color light-emitting layers included in the plurality of first color subpixels are spaced apart from one another, the plurality of second color light-emitting layers included in the plurality of second color subpixels are spaced apart from one another, an area ratio of the first color light-emitting layer and the first effective light-emitting region corresponding to the same first color subpixel, when orthogonally projected on the base substrate, is a first area ratio, an area ratio of the second color light-emitting layer and the second effective light-emitting region corresponding to the same second color subpixel, when orthogonally projected on the base substrate, is a second area ratio, and the first area is smaller than the second area ratio.

[0006] For example, in an embodiment of the present disclosure, the first area ratio and the second area ratio range from 1 to 15.

[0007] For example, in an embodiment of the present disclosure, the first area ratio and the second area ratio range from 4 to 6.

[0008] For example, in an embodiment of the present disclosure, the first area ratio and the second area ratio range from 6 to 8.

[0009] For example, in an embodiment of the present disclosure, the first area ratio is 2-6.

[0010] For example, in an embodiment of the present disclosure, the first area ratio is 1.5-3.

[0011] For example, in an embodiment of the present disclosure, the second area ratio is 4-9.

[0012] For example, in an embodiment of the present disclosure, the second area ratio is 6.5-8.

[0013] For example, in an embodiment of the present disclosure, at least some of the second effective light-emitting regions have a length direction and a width direction, the length direction is an extension direction of a line connecting the two farthest points in the second effective light-emitting region, the width direction and the length direction of the same second effective light-emitting region are approximately perpendicular, and for the same second effective light-emitting region, along the length direction, the ratio of the maximum size of the second color light-emitting layer corresponding to the second effective light-emitting region to the maximum size of the second effective light-emitting region is a first ratio, and along the width direction, the ratio of the maximum size of the second color light-emitting layer corresponding to the second effective light-emitting region to the maximum size of the second effective light-emitting region is a second ratio, and the first ratio is smaller than the second ratio.

[0014] For example, in an embodiment of the present disclosure, for the same second effective light-emitting area, the difference between the maximum size of the second color light-emitting layer and the maximum size of the second effective light-emitting area along the length direction is a first difference, and the difference between the maximum size of the second color light-emitting layer and the maximum size of the second effective light-emitting area along the width direction is a second difference, and the first difference is smaller than the second difference.

[0015] For example, in an embodiment of the present disclosure, the ratio of the maximum lengthwise size of the corresponding second effective light-emitting region of the second color light-emitting layer to the maximum widthwise size of the corresponding second effective light-emitting region of the second color light-emitting layer is smaller than the ratio of the maximum lengthwise size of the second effective light-emitting region to the maximum widthwise size of the second effective light-emitting region.

[0016] For example, in an embodiment of the present disclosure, the display panel further includes a plurality of third-color subpixels located in the display area, wherein the plurality of first-color subpixels and the plurality of third-color subpixels are alternately arranged along the first direction and the second direction, the plurality of first-color subpixels and the plurality of second-color subpixels are alternately arranged along the third direction to form a first group, the plurality of third-color subpixels and the plurality of second-color subpixels are alternately arranged along the third direction to form a second group, the first group and the second group are alternately distributed along a fourth direction, and the third direction and the fourth direction intersect with both the first direction and the second direction. The plurality of third color subpixels have a plurality of third effective light-emitting areas, an area of ​​one of the second effective light-emitting areas is smaller than an area of ​​one of the third effective light-emitting areas, the plurality of third color subpixels have a plurality of third color light-emitting layers located within the corresponding openings and on the pixel definition layer surrounding the corresponding openings, the plurality of third color light-emitting layers included in the plurality of third color subpixels are spaced apart from each other, and an area ratio of the third color light-emitting layer and the third effective light-emitting area corresponding to the same third color subpixel, when projected orthogonally on the base substrate, is a third area ratio, which is smaller than the second area ratio.

[0017] For example, in an embodiment of the present disclosure, the area of ​​the first effective light-emitting area of ​​one of the first color sub-pixels is smaller than the area of ​​the third effective light-emitting area of ​​one of the third color sub-pixels, and the first area ratio is greater than the third area ratio.

[0018] For example, in an embodiment of the present disclosure, the third area ratio ranges from 1 to 15.

[0019] For example, in an embodiment of the present disclosure, the range of the third area ratio is 1.5 to 7.

[0020] For example, in an embodiment of the present disclosure, the third area ratio ranges from 2 to 3.

[0021] For example, in an embodiment of the present disclosure, the third area ratio ranges from 3 to 4.

[0022] For example, in an embodiment of the present disclosure, the first color light-emitting layer and the second color light-emitting layer that are adjacent and arranged along the third direction overlap, and the second color light-emitting layer and the third color light-emitting layer that are adjacent and arranged along the third direction overlap.

[0023] For example, in an embodiment of the present disclosure, the area ratio of the overlapping portion of one first-color light-emitting layer of one of the first-color subpixels with the light-emitting layer of the other subpixels to the orthogonal projection on the base substrate of this one first-color light-emitting layer, and the area ratio of the overlapping portion of one third-color light-emitting layer of one of the third-color subpixels with the light-emitting layer of the other subpixels to the orthogonal projection on the base substrate of this one third-color light-emitting layer, are all smaller than the area ratio of the overlapping portion of one second-color light-emitting layer of one of the second-color subpixels with the light-emitting layer of the other subpixels to the orthogonal projection on the base substrate of this one second-color light-emitting layer.

[0024] For example, in an embodiment of the present disclosure, the adjacent first-color light-emitting layer does not overlap with the third-color light-emitting layer, or the overlapping area between the adjacent first-color light-emitting layer and the third-color light-emitting layer is smaller than the overlapping area between the adjacent first-color light-emitting layer and the second-color light-emitting layer and the overlapping area between the adjacent third-color light-emitting layer and the second-color light-emitting layer.

[0025] For example, in an embodiment of the present disclosure, the pixel definition layer between the adjacent first and second effective light-emitting regions has a width in the third direction in a range of 15 to 25 microns, and in a plane parallel to the base substrate, along the third direction, a portion of a surface of the pixel definition layer between the adjacent first and second effective light-emitting regions that faces away from the base substrate and that is covered with the light-emitting layer of the first color is 0.3 to 0.8 times the width of the pixel definition layer, and a portion of a surface of the pixel definition layer between the adjacent first and second effective light-emitting regions that faces away from the base substrate and that is covered with the light-emitting layer of the second color is 0.3 to 0.8 times the width of the pixel definition layer.

[0026] For example, in an embodiment of the present disclosure, the edge region of the light-emitting layer of each subpixel comprises a ring region having a ring width a, wherein the width of the pixel definition layer between adjacent first and second effective light-emitting regions is a', and the size of the overlapping portion between adjacent first-color light-emitting layers and second-color light-emitting layers in the third direction is o1, where o1≧a and o1<(0.5*a')−a; the width of the pixel definition layer between adjacent third and second effective light-emitting regions is a', and the size of the overlapping portion between adjacent third-color light-emitting layers and second-color light-emitting layers in the fourth direction is o2, where o2≧a and o2<(0.5*a')−a, and a is in the range of 1 to 4 microns.

[0027] For example, in an embodiment of the present disclosure, the thickness of the ring region of each of the light-emitting layers is 90% or less of the thickness of the corresponding central region of each of the light-emitting layers.

[0028] For example, in an embodiment of the present disclosure, each of the sub-pixels further comprises a first electrode and a second electrode located on the side of the light-emitting layer and the pixel definition layer facing the base substrate, the second electrode of each of the sub-pixels comprising a body electrode from the center to the edge of the effective light-emitting area, and the size of the overlapping portion between the body electrode and the pixel definition layer is less than or equal to the size of the overlapping portion between the light-emitting layer and the pixel definition layer.

[0029] For example, in an embodiment of the present disclosure, the display panel further includes a plurality of third color subpixels located in the display area, wherein the plurality of first color subpixels and the plurality of third color subpixels are alternately arranged along the first direction and the second direction, the plurality of first color subpixels and the plurality of second color subpixels are alternately arranged along the third direction to form a first group, the plurality of third color subpixels and the plurality of second color subpixels are alternately arranged along the third direction to form a second group, the first group and the second group are alternately distributed along a fourth direction, the third direction and the fourth direction intersect with both the first direction and the second direction. The plurality of third color subpixels have a plurality of third effective light-emitting areas, and the plurality of third color subpixels have a plurality of third color light-emitting layers located in corresponding ones of the openings and on the pixel defining layer surrounding the corresponding openings, and the plurality of third color light-emitting layers included in the plurality of third color subpixels are spaced apart from each other. the display panel includes: a package layer located in the display area and the peripheral area; a first touch electrode layer located on a side of the package layer away from the base substrate, the first touch electrode layer including a plurality of first touch electrodes extending along the first direction and a plurality of second touch electrodes extending along the second direction, each of the first touch electrodes including a plurality of first touch electrode units, each of the second touch electrodes including a plurality of second touch electrode units, the first touch electrode layer including a plurality of touch electrode lines crossing to form a plurality of first meshes, each of the first touch electrode units and each of the second touch electrode units including a plurality of connected first meshes; a second touch electrode layer including a plurality of connecting bridges and a plurality of bridge connecting lines crossing to form a second mesh, each of the connecting bridges including a plurality of connected second meshes, each of the connecting bridges including a plurality of connected second meshes, each of the second touch electrode units being electrically connected to the connecting bridge through at least one connecting bridge; and a touch insulating layer located between the first touch electrode layer and the second touch electrode layer, the second touch electrode units being electrically connected to the connecting bridge by penetrating vias in the touch insulating layer.The touch insulating layer may further include a touch insulating layer in which the orthogonal projections of the plurality of touch electrode lines located in the display area on the base substrate are located within the orthogonal projections of the pixel definition layer on the base substrate.

[0030] For example, in an embodiment of the present disclosure, each portion of the pixel definition layer in the display area has 80% or more of the orthogonal projection of the center line of the extension direction of the pixel definition layer on the base substrate within the orthogonal projection of the touch electrode line on the base substrate.

[0031] For example, in an embodiment of the present disclosure, there is a gap between the first color light-emitting layer, the second color light-emitting layer, and the third color light-emitting layer, which are adjacent to each other, and the shape of the first color light-emitting layer includes a first rounded rectangle and a first protrusion portion located at the rounded corners of the first rounded rectangle and protruding into the gap, and the first protrusion portion protrudes at least partially from an extension line of a straight side of the first rounded rectangle that is closer to the second color light-emitting layer; the shape of the third color light-emitting layer includes a third rounded rectangle and a second protrusion portion located at the rounded corners of the third rounded rectangle and protruding into the gap, and the second protrusion portion protrudes at least partially from an extension line of a straight side of the third rounded rectangle that is closer to the second color light-emitting layer; and orthogonal projections of the first protrusion portion and the second protrusion portion on the base substrate and orthogonal projections of the touch electrode lines on the base substrate at least partially overlap.

[0032] For example, in an embodiment of the present disclosure, in the display area, 50% or more of the orthogonal projection of the touch electrode line on the base substrate is within the orthogonal projection of the overlapping portion of the light-emitting layer on the base substrate, and the overlapping portion of the light-emitting layer includes overlapping portions of at least two of a first color light-emitting layer, a second color light-emitting layer, and a third color light-emitting layer.

[0033] For example, in an embodiment of the present disclosure, in the display region, the orthogonal projection of the effective light-emitting area of ​​each of the subpixels on the base substrate is within the orthogonal projection of each of the first meshes on the base substrate, and the ratio of the area of ​​the opening of the first mesh corresponding to the subpixel of the first color to the area of ​​the first effective light-emitting area, and the ratio of the area of ​​the opening of the first mesh corresponding to the subpixel of the third color to the area of ​​the third effective light-emitting area are both smaller than the ratio of the area of ​​the opening of the first mesh corresponding to the subpixel of the second color to the area of ​​the second effective light-emitting area.

[0034] For example, in an embodiment of the present disclosure, each of the sub-pixels further comprises: a first electrode; a second electrode located on a side of the light-emitting layer and the pixel definition layer facing the base substrate; and a pixel circuit located between the second electrode and the base substrate and including a driving transistor, wherein at least one of the second electrode of the first color sub-pixel, the second electrode of the second color sub-pixel, and the second electrode of the third color sub-pixel overlaps with the touch electrode line, and / or at least one driving transistor of the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel overlaps with the touch electrode line.

[0035] For example, in an embodiment of the present disclosure, the driving transistor of the second color subpixel overlaps the touch electrode line and the second electrode of the second color subpixel does not substantially overlap the touch electrode line; in the first color subpixel, the driving transistor overlaps the second electrode and does not substantially overlap the touch electrode line and the second electrode overlaps the touch electrode line; and in the third color subpixel, the driving transistor overlaps the second electrode and does not substantially overlap the touch electrode line and the second electrode overlaps the touch electrode line.

[0036] For example, in an embodiment of the present disclosure, in the subpixel of the second color, both the second electrode and the driving transistor overlap with the touch electrode line, in the subpixel of the first color, both the second electrode and the driving transistor do not substantially overlap with the touch electrode line, and in the subpixel of the third color, both the second electrode and the driving transistor do not substantially overlap with the touch electrode line.

[0037] For example, in an embodiment of the present disclosure, in the subpixel of the second color, neither the second electrode nor the driving transistor substantially overlaps with the touch electrode line, in the subpixel of the first color, both the second electrode and the driving transistor overlap with the touch electrode line, and in the subpixel of the third color, both the second electrode and the driving transistor overlap with the touch electrode line.

[0038] For example, in an embodiment of the present disclosure, in the subpixel of the first color, the second electrode does not overlap with both the drive transistor and the touch electrode line, and the drive transistor overlaps with the touch electrode line; in the subpixel of the third color, the second electrode does not overlap with both the drive transistor and the touch electrode line, and the drive transistor overlaps with the touch electrode line; and in the subpixel of the second color, the second electrode overlaps with both the drive transistor and the touch electrode line, and the drive transistor overlaps with the touch electrode line.

[0039] For example, in an embodiment of the present disclosure, the pixel circuit of each of the subpixels further includes a data writing transistor and a threshold compensation transistor, wherein the data writing transistor has a first pole electrically connected to the first pole of the drive transistor, a second pole electrically connected to a data line to receive a data signal, and a gate electrically connected to a scan signal line to receive a scan signal, the threshold compensation transistor has a first pole electrically connected to the second pole of the drive transistor, a second pole electrically connected to the gate of the drive transistor, and a gate electrically connected to the scan signal line to receive a compensation control signal, and the data writing transistor of at least one of the pixel circuits of the first color subpixel, the second color subpixel, and the third color subpixel overlaps with the touch electrode line, and / or the threshold compensation transistor of at least one of the pixel circuits of the first color subpixel, the second color subpixel, and the third color subpixel overlaps with the touch electrode line.

[0040] For example, in an embodiment of the present disclosure, in the subpixel of the first color, the second electrode overlaps with at least one of the threshold compensation transistor and the data writing transistor, and neither the threshold compensation transistor nor the data writing transistor overlaps with the touch electrode line; in the subpixel of the third color, the second electrode overlaps with at least one of the threshold compensation transistor and the data writing transistor, and neither the threshold compensation transistor nor the data writing transistor overlaps with the touch electrode line; and in the subpixel of the second color, the second electrode overlaps with neither the threshold compensation transistor nor the data writing transistor, and at least one of the threshold compensation transistor and the data writing transistor overlaps with the touch electrode line.

[0041] For example, in an embodiment of the present disclosure, in the subpixel of the first color, the second electrode overlaps with at least one of the threshold compensation transistor and the data writing transistor, in the subpixel of the third color, the second electrode overlaps with at least one of the threshold compensation transistor and the data writing transistor, and in the subpixel of the second color, the second electrode overlaps with the threshold compensation transistor, and the driving transistor overlaps with the touch electrode line.

[0042] For example, in an embodiment of the present disclosure, the display panel further includes a plurality of third-color subpixels located in the display area, wherein the plurality of first-color subpixels and the plurality of third-color subpixels are alternately arranged along the first direction and the second direction, the plurality of first-color subpixels and the plurality of second-color subpixels are alternately arranged along the third direction to form a first group, the plurality of third-color subpixels and the plurality of second-color subpixels are alternately arranged along the third direction to form a second group, the first groups and the second groups are alternately distributed along a fourth direction, and the third direction and the fourth direction intersect with both the first direction and the second direction. The display panel further includes a plurality of photospacers located on a surface of the pixel definition layer away from the base substrate, wherein the photospacers in the display area are located at intervals between subpixels arranged along the first direction, and the photospacers in the display area are located at intervals between subpixels arranged along the second direction. In the display region, the area ratio K of the photospacer to the pixel definition layer is K≦S0 / [k1*n*m*(S1 G -S2 G )+k2*n*m*(S1 R -S2 R )+k2*n*m*(S1 B -S2 B) is satisfied, n represents the number of intermediate sub-pixels in the same row / column between adjacent photospacers among the photospacers arranged along the first direction, m represents the number of intermediate sub-pixels in the same row / column between adjacent photospacers among the photospacers arranged along the second direction, S0 represents the area of ​​one photospacer, and S1 G , S1 R , S1 B represent the areas of the light-emitting layers of the second color subpixel, the first color subpixel, and the third color subpixel, respectively, and S2 G , S2 R , S2 B represent the areas of the openings in the pixel definition layer corresponding to the second color subpixels, the first color subpixels, and the third color subpixels, respectively, and k1, k2, and k3 represent the proportions of the second color subpixels, the first color subpixels, and the third color subpixels in the display area to the total number of subpixels, respectively.

[0043] For example, in an embodiment of the present disclosure, the area ratio between the orthogonal projection of the photo spacer on the base substrate and the orthogonal projection of the pixel definition layer on the base substrate is 8% or less.

[0044] For example, in an embodiment of the present disclosure, the ratio of the number of the photospacers to the total number of sub-pixels in the display area is 1:16 or less.

[0045] For example, in an embodiment of the present disclosure, four subpixels of the second color are arranged between adjacent photospacers along the second direction, and two subpixels of the first color and two subpixels of the third color are arranged between adjacent photospacers along the first direction, or six subpixels of the second color are arranged between adjacent photospacers along the second direction, and three subpixels of the first color and three subpixels of the third color are arranged between adjacent photospacers along the first direction, or four subpixels of the second color are arranged between adjacent photospacers along the second direction, and three subpixels of the first color and three subpixels of the third color are arranged between adjacent photospacers along the first direction, or six subpixels of the second color are arranged between adjacent photospacers along the second direction, and two subpixels of the first color and two subpixels of the third color are arranged between adjacent photospacers along the first direction.

[0046] For example, in an embodiment of the present disclosure, each photospacer comprises a first region and a ring-shaped second region surrounding the first region, the first region comprises the central region of the photospacer, the area ratio between the first region and the orthogonal projection of the photospacer on the base substrate is 1 / 4 or less, and within the display region, the first region of at least one of the photospacers does not overlap with any of the first color light-emitting layer, the second color light-emitting layer, or the third color light-emitting layer, or the first region of at least one of the photospacers overlaps with only one color light-emitting layer.

[0047] For example, in an embodiment of the present disclosure, the display panel includes a package layer located in the display area and the peripheral area, and a first touch electrode layer located on a side of the package layer away from the base substrate, the first touch electrode layer including a plurality of first touch electrodes extending along the first direction and a plurality of second touch electrodes extending along the second direction, wherein each first touch electrode includes a plurality of first touch electrode units, each second touch electrode includes a plurality of second touch electrode units, the first touch electrode layer includes a plurality of touch electrode lines crossing to form a plurality of first meshes, and each of the first touch electrode units and each of the second touch electrode units includes a plurality of connected first meshes. a second touch electrode layer including a plurality of connection bridges and a plurality of bridge connection lines crossing to form a second mesh, each of the connection bridges having a plurality of communicating second meshes, and adjacent second touch electrode units being electrically connected via at least one connection bridge; and a touch insulating layer located between the first touch electrode layer and the second touch electrode layer, the second touch electrode units being electrically connected to the connection bridges by passing through vias in the touch insulating layer, and within the display area, the bridge connection lines defining one second mesh overlap at most one photospacer.

[0048] For example, in an embodiment of the present disclosure, within the display area, the bridge connection line of the second mesh included in one connection bridge connecting adjacent second touch electrode units overlaps with at most three photo spacers, and all connection bridges connecting adjacent second touch electrode units overlap with at most four photo spacers.

[0049] For example, in an embodiment of the present disclosure, the display panel further includes a plurality of third color subpixels located in the display area, wherein the plurality of first color subpixels and the plurality of third color subpixels are alternately arranged along the first direction and the second direction, the plurality of first color subpixels and the plurality of second color subpixels are alternately arranged along the third direction to form a first group, the plurality of third color subpixels and the plurality of second color subpixels are alternately arranged along the third direction to form a second group, the first group and the second group are alternately distributed along a fourth direction, the third direction and the fourth direction intersect with both the first direction and the second direction, the plurality of third color subpixels have a plurality of third effective light-emitting areas, and the plurality of third color subpixels have a plurality of third color light-emitting layers located in corresponding ones of the openings and on the pixel defining layer surrounding the corresponding openings, the functional film layers of each of the subpixels are spaced apart from one another, and each of the subpixels comprises a first electrode and a second electrode located between the base substrate and the first electrode; the total thickness of the functional film layer of each of the subpixels located between the first electrode and the second electrode and overlapping both the first electrode and the second electrode when projected orthogonally onto the base substrate is smaller than the depth of the opening corresponding to the subpixel; the functional film layer comprises a light-emitting layer, and the light-emitting layer of each of the subpixels comprises a first-color light-emitting layer, a second-color light-emitting layer, and a third-color light-emitting layer; the total thickness of the functional film layer of the first-color subpixels located between the first electrode and the second electrode is thicker than the total thickness of the functional film layer of the second-color subpixels located between the first electrode and the second electrode, and the total thickness of the functional film layer of the second-color subpixels located between the first electrode and the second electrode is thicker than the total thickness of the functional film layer of the third-color subpixels located between the first electrode and the second electrode.

[0050] For example, in an embodiment of the present disclosure, the functional film layer of each of the sub-pixels located between the first electrode and the second electrode further includes an auxiliary light-emitting layer located between the corresponding light-emitting layer and the second electrode, and the thickness of the auxiliary light-emitting layer of the first color sub-pixel is thicker than the thickness of the auxiliary light-emitting layer of the second color sub-pixel, and the thickness of the auxiliary light-emitting layer of the second color sub-pixel is thicker than the thickness of the auxiliary light-emitting layer of the third color sub-pixel.

[0051] For example, in an embodiment of the present disclosure, each of the sub-pixels includes a first electrode and a second electrode located between the base substrate and the first electrode, and in a display area, the first electrode is an entire film layer. The display panel includes a package layer located in the display area and the peripheral area, and a first touch electrode layer located on a side of the package layer away from the base substrate, the first touch electrode layer including a plurality of first touch electrodes extending along the first direction and a plurality of second touch electrodes extending along the second direction, wherein each of the first touch electrodes includes a plurality of first touch electrode units, each of the second touch electrodes includes a plurality of second touch electrode units, and the first touch electrode layer includes a plurality of touch electrode lines crossing to form a plurality of first meshes, and each of the first touch electrode units and each of the second touch electrode units includes a first touch electrode layer including a plurality of connected first meshes, and a plurality of connecting bridges to form a second mesh. the first touch electrode layer includes a plurality of bridge connection lines intersecting each other, each of the connection bridges having a plurality of communicating second meshes, and adjacent second touch electrode units are electrically connected through at least one connection bridge; and a touch insulating layer located between the first touch electrode layer and the second touch electrode layer, the second touch electrode units being electrically connected to the connection bridges by passing through vias in the touch insulating layer, wherein within the display area, a total thickness of the insulating layer between the first electrode located within an effective light-emitting area of ​​each sub-pixel and one of the first touch electrode layer and the second touch electrode layer that is closer to the first electrode is greater than a total thickness of the insulating layer between the first electrode located outside the effective light-emitting area of ​​each sub-pixel and one of the first touch electrode layer and the second touch electrode layer that is closer to the first electrode.

[0052] For example, in an embodiment of the present disclosure, the display panel further includes a plurality of third-color subpixels located in the display area, wherein the plurality of first-color subpixels and the plurality of third-color subpixels are alternately arranged along the first direction and the second direction, the plurality of first-color subpixels and the plurality of second-color subpixels are alternately arranged along the third direction to form a first group, the plurality of third-color subpixels and the plurality of second-color subpixels are alternately arranged along the third direction to form a second group, the first group and the second group are alternately distributed along a fourth direction, and the third direction and the fourth direction intersect with both the first direction and the second direction. the plurality of third color sub-pixels have a plurality of third effective light-emitting regions, the plurality of third color sub-pixels have a plurality of third color light-emitting layers located in the corresponding openings and on the pixel definition layer surrounding the corresponding openings, the plurality of third color light-emitting layers included in the plurality of third color sub-pixels are spaced apart from each other, the sub-pixels have a first electrode and a second electrode located between the base substrate and the first electrode, the pixel definition layer has a plurality of first defining portions and a plurality of second defining portions extending substantially along the first direction, the first defining portions and the second defining portions are alternately arranged along the second direction, and one first definition portion and one second definition portion located on both sides of sub-pixels in the same row arranged in such a manner have different average heights, the average heights of the plurality of first definition portions located within the display area are substantially the same, the average heights of the plurality of second definition portions located within the display area are substantially the same, the average height of the first definition portion is the average height from a surface of the first definition portion away from the base substrate to a plane including a surface of the main electrode of the second electrode away from the base substrate, and the average height of the second definition portion is the average height from the surface of the second definition portion away from the base substrate to a plane including a surface of the main electrode of the second electrode away from the base substrate.

[0053] For example, in an embodiment of the present disclosure, the average height of one of the first definition portions is greater than the average height of one of the second definition portions, and the average height of the pixel definition layer in the peripheral region is greater than the average height of one of the second definition portions.

[0054] For example, in an embodiment of the present disclosure, two adjacent rows of sub-pixels arranged along the second direction constitute one pixel unit row, and the average height of two first definition portions located on both sides of one pixel unit row in the second direction is greater than the average height of one second definition portion located between two rows of sub-pixels in this one pixel unit row.

[0055] For example, in an embodiment of the present disclosure, the pixel array structure consisting of the plurality of first color subpixels, the plurality of second color subpixels, and the plurality of third color subpixels comprises a plurality of minimal repeating units arranged along the first direction, each of the minimal repeating units comprising one first color subpixel, one third color subpixel, and two second color subpixels distributed in two subpixel rows, and in the second direction, the first definition portion is located on both sides of the minimal repeating unit arranged along the first direction, and the second definition portion is located at the interval between the two subpixel rows in which the minimal repeating units are distributed. For example, in an embodiment of the present disclosure, the pixel definition layer comprises a flat portion and an inclined portion surrounding each of the openings and including a first sub-inclined portion close to the flat portion and a second sub-inclined portion away from the flat portion, and along the third direction or the fourth direction, the ratio of the sizes of the orthogonal projections of the first sub-inclined portion and the second sub-inclined portion on the base substrate is 1 / 4 or less, and the average inclination angle of the first sub-inclined portion is smaller than the average inclination angle of the second sub-inclined portion.

[0056] For example, in an embodiment of the present disclosure, the first sub-pixel is a red sub-pixel, the second sub-pixel is a green sub-pixel, and the third sub-pixel is a blue sub-pixel.

[0057] At least one embodiment of the present disclosure provides a display panel including a base substrate, a plurality of first-color subpixels, a plurality of second-color subpixels, and a pixel definition layer located on the base substrate, the base substrate including a display area and a peripheral area located around the display area, the plurality of first-color subpixels located in the display area and arranged along a first direction to form a plurality of first-color subpixel rows, the plurality of first-color subpixel rows being arranged along a second direction, adjacent first-color subpixel rows being offset from each other along the first direction, the plurality of second-color subpixels located in the display area and arranged in an array along the first and second directions, four second-color subpixels surrounding one first-color subpixel, the pixel definition layer located in the display area and the peripheral area and including a plurality of openings to define effective light-emitting areas of the plurality of subpixels, the plurality of first-color subpixels having a plurality of first effective light-emitting areas, and the plurality of second-color subpixels having a plurality of second effective light-emitting areas. a first color subpixel having a lower luminous efficiency than a second color subpixel, the first color subpixels comprising a first color light-emitting layer located within a corresponding one of the openings and on the pixel definition layer surrounding the corresponding openings, the second color subpixels comprising a second color light-emitting layer located within a corresponding one of the openings and on the pixel definition layer surrounding the corresponding openings, the first color light-emitting layers included in the first color subpixels being spaced apart from one another, the second color light-emitting layers included in the second color subpixels being spaced apart from one another, an area ratio of the first color light-emitting layer and the first effective light-emitting region corresponding to the same first color subpixel, when orthogonally projected on the base substrate, is a first area ratio, and an area ratio of the second color light-emitting layer and the second effective light-emitting region corresponding to the same second color subpixel, when orthogonally projected on the base substrate, is a second area ratio, and the first area is smaller than the second area ratio.

[0058] For example, in an embodiment of the present disclosure, the display panel further includes a plurality of third-color subpixels located in the display area, wherein the plurality of first-color subpixels and the plurality of third-color subpixels are alternately arranged along the first direction and the second direction, the plurality of first-color subpixels and the plurality of second-color subpixels are alternately arranged along the third direction to form a first group, the plurality of third-color subpixels and the plurality of second-color subpixels are alternately arranged along the third direction to form a second group, the first group and the second group are alternately distributed along a fourth direction, and the third direction and the fourth direction intersect with both the first direction and the second direction. the plurality of third color subpixels have a plurality of third effective light-emitting areas, the light-emitting efficiency of the second color subpixels is greater than the light-emitting efficiency of the third color subpixels, the plurality of third color subpixels have a plurality of third color light-emitting layers located within the corresponding openings and on the pixel definition layer surrounding the corresponding openings, the plurality of third color light-emitting layers included in the plurality of third color subpixels are spaced apart from each other, and an area ratio of the third color light-emitting layer and the third effective light-emitting area corresponding to the same third color subpixel, when projected orthogonally on the base substrate, is a third area ratio, which is smaller than the second area ratio.

[0059] For example, in an embodiment of the present disclosure, the luminous efficiency of the first color sub-pixel is greater than the luminous efficiency of the third color sub-pixel, and the first area ratio is greater than the third area ratio.

[0060] For example, in an embodiment of the present disclosure, the ratio of the aperture ratio of the sub-pixels of the first color to the aperture ratio of the sub-pixels of the second color is 0.5 to 1.6.

[0061] For example, in an embodiment of the present disclosure, the ratio of the aperture ratio of the second color sub-pixel to the aperture ratio of the third color sub-pixel is about 1:(1.1 to 1.9).

[0062] At least one embodiment of the present disclosure provides a display panel including a base substrate, a plurality of first color subpixels, a plurality of second color subpixels, a plurality of third color subpixels, and a pixel definition layer located on the base substrate, the base substrate including a display region and a peripheral region located around the display region, the plurality of first color subpixels located in the display region and arranged along a first direction to form a plurality of first color subpixel rows, the plurality of first color subpixel rows being arranged along a second direction, adjacent first color subpixel rows being offset from each other along the first direction, the plurality of second color subpixels located in the display region and arranged in an array along the first and second directions, four second color subpixels surrounding one first color subpixel, and the plurality of third color subpixels located in the display region and arranged in an array along the first and second directions, four second color subpixels surrounding one first color subpixel, and the plurality of third color subpixels located in the display region and arranged in an array along the first and second directions, the plurality of third-color subpixels are alternately arranged along the first direction and the second direction, the plurality of first-color subpixels and the plurality of second-color subpixels are alternately arranged along the third direction to form a first group, the plurality of third-color subpixels and the plurality of second-color subpixels are alternately arranged along the third direction to form a second group, the first group and the second group are alternately distributed along a fourth direction, the third direction and the fourth direction intersect with both the first direction and the second direction, and the pixel definition layer is located in the display region and the peripheral region and has a plurality of openings to define effective light-emitting areas of the plurality of subpixels.the subpixel comprises a first electrode and a second electrode located between the base substrate and the first electrode, the pixel definition layer comprises a plurality of first definition portions and a plurality of second definition portions extending substantially along the first direction, the first definition portions and the second definition portions are arranged alternately along the second direction, one first definition portion and one second definition portion located on both sides of subpixels in the same row arranged along the first direction have different average heights in the second direction, the average heights of the plurality of first definition portions located within the display area are substantially the same, and the average heights of the plurality of second definition portions located within the display area are substantially the same, the average height of the first definition portion is the average height from a surface of the first definition portion away from the base substrate to a plane including a surface of a main electrode of the second electrode away from the base substrate, and the average height of the second definition portion is the average height from a surface of the second definition portion away from the base substrate to a plane including a surface of a main electrode of the second electrode away from the base substrate.

[0063] For example, in an embodiment of the present disclosure, the average height of one of the first definition portions is greater than the average height of one of the second definition portions, and the average height of the pixel definition layer in the peripheral region is greater than the average height of one of the second definition portions.

[0064] For example, in an embodiment of the present disclosure, two adjacent rows of sub-pixels arranged along the second direction constitute one pixel unit row, and the average height of two first definition portions located on both sides of one pixel unit row in the second direction is greater than the average height of one second definition portion located between two rows of sub-pixels in this one pixel unit row.

[0065] For example, in an embodiment of the present disclosure, the pixel array structure consisting of the plurality of first color subpixels, the plurality of second color subpixels, and the plurality of third color subpixels comprises a plurality of minimal repeating units arranged along the first direction, each of the minimal repeating units comprising one first color subpixel, one third color subpixel, and two second color subpixels distributed in two subpixel rows, and in the second direction, the first definition portion is located on both sides of the minimal repeating unit arranged along the first direction, and the second definition portion is located at the interval between the two subpixel rows in which the minimal repeating units are distributed. For example, in an embodiment of the present disclosure, the pixel definition layer comprises a flat portion and an inclined portion surrounding each of the openings and including a first sub-inclined portion close to the flat portion and a second sub-inclined portion away from the flat portion, and along the third direction or the fourth direction, the ratio of the sizes of the orthogonal projections of the first sub-inclined portion and the second sub-inclined portion on the base substrate is 1 / 4 or less, and the average inclination angle of the first sub-inclined portion is smaller than the average inclination angle of the second sub-inclined portion.

[0066] For example, in an embodiment of the present disclosure, the display device further includes a plurality of photo spacers located on a surface of the pixel definition layer away from the base substrate, the photo spacers in the display area being located at intervals between sub-pixels arranged along the first direction, and the photo spacers in the display area being located at intervals between sub-pixels arranged along the second direction. In the display area, an area ratio K between the photo spacers and the pixel definition layer satisfies K≦S0 / [k1*n*m*(S1 G -S2 G )+k2*n*m*(S1 R -S2 R )+k2*n*m*(S1 B -S2 B ) is satisfied, n represents the number of intermediate sub-pixels in the same row / column between adjacent photospacers among the photospacers arranged along the first direction, m represents the number of intermediate sub-pixels in the same row / column between adjacent photospacers among the photospacers arranged along the second direction, S0 represents the area of ​​one photospacer, and S1G , S1 R , S1 B represent the areas of the light-emitting layers of the second color subpixel, the first color subpixel, and the third color subpixel, respectively, and S2 G , S2 R , S2 B represent the areas of the openings in the pixel definition layer corresponding to the second color subpixels, the first color subpixels, and the third color subpixels, respectively, and k1, k2, and k3 represent the proportions of the second color subpixels, the first color subpixels, and the third color subpixels in the display area to the total number of subpixels, respectively.

[0067] For example, in an embodiment of the present disclosure, the area ratio between the orthogonal projection of the photo spacer on the base substrate and the orthogonal projection of the pixel definition layer on the base substrate is 8% or less.

[0068] For example, in an embodiment of the present disclosure, the ratio of the number of the photospacers to the total number of sub-pixels in the display area is 1:16 or less.

[0069] For example, in an embodiment of the present disclosure, four subpixels of the second color are arranged between adjacent photospacers along the second direction, and two subpixels of the first color and two subpixels of the third color are arranged between adjacent photospacers along the first direction, or six subpixels of the second color are arranged between adjacent photospacers along the second direction, and three subpixels of the first color and three subpixels of the third color are arranged between adjacent photospacers along the first direction, or four subpixels of the second color are arranged between adjacent photospacers along the second direction, and three subpixels of the first color and three subpixels of the third color are arranged between adjacent photospacers along the first direction, or six subpixels of the second color are arranged between adjacent photospacers along the second direction, and two subpixels of the first color and two subpixels of the third color are arranged between adjacent photospacers along the first direction.

[0070] For example, in an embodiment of the present disclosure, the plurality of first color subpixels include a plurality of first effective light-emitting areas, the plurality of second color subpixels include a plurality of second effective light-emitting areas, an area of ​​one of the second effective light-emitting areas is smaller than an area of ​​one of the first effective light-emitting areas, the plurality of first color subpixels include a plurality of first color light-emitting layers located in corresponding ones of the openings and on the pixel defining layer surrounding the corresponding openings, the plurality of second color subpixels include a second color light-emitting layer located in corresponding ones of the openings and on the pixel defining layer surrounding the corresponding openings, the plurality of first color light-emitting layers included in the plurality of first color subpixels are spaced apart from one another, the plurality of second color light-emitting layers included in the plurality of second color subpixels are spaced apart from one another, an area ratio of the first color light-emitting layers and the first effective light-emitting areas corresponding to the same first color subpixel when orthogonally projected on the base substrate is a first area ratio, an area ratio of the second color light-emitting layers and the second effective light-emitting areas corresponding to the same second color subpixel when orthogonally projected on the base substrate is a second area ratio, and the first area is smaller than the second area ratio.

[0071] For example, in an embodiment of the present disclosure, at least some of the second effective light-emitting regions have a length direction and a width direction, the length direction is an extension direction of a line connecting the two farthest points in the second effective light-emitting region, the width direction and the length direction of the same second effective light-emitting region are approximately perpendicular, and for the same second effective light-emitting region, along the length direction, the ratio of the maximum size of the second color light-emitting layer corresponding to the second effective light-emitting region to the maximum size of the second effective light-emitting region is a first ratio, and along the width direction, the ratio of the maximum size of the second color light-emitting layer corresponding to the second effective light-emitting region to the maximum size of the second effective light-emitting region is a second ratio, and the first ratio is smaller than the second ratio.

[0072] For example, in an embodiment of the present disclosure, for the same second effective light-emitting area, the difference between the maximum size of the second color light-emitting layer and the maximum size of the second effective light-emitting area along the length direction is a first difference, and the difference between the maximum size of the second color light-emitting layer and the maximum size of the second effective light-emitting area along the width direction is a second difference, and the first difference is smaller than the second difference.

[0073] For example, in an embodiment of the present disclosure, the ratio of the maximum lengthwise size of the corresponding second effective light-emitting region of the second color light-emitting layer to the maximum widthwise size of the corresponding second effective light-emitting region of the second color light-emitting layer is smaller than the ratio of the maximum lengthwise size of the second effective light-emitting region to the maximum widthwise size of the second effective light-emitting region.

[0074] For example, in an embodiment of the present disclosure, the area ratio of the third color light-emitting layer and the third effective light-emitting area corresponding to the same third color sub-pixel when projected orthogonally on the base substrate is a third area ratio, which is smaller than the second area ratio.

[0075] For example, in an embodiment of the present disclosure, the area of ​​the first effective light-emitting area of ​​one of the first color sub-pixels is smaller than the area of ​​the third effective light-emitting area of ​​one of the third color sub-pixels, and the first area ratio is greater than the third area ratio.

[0076] For example, in an embodiment of the present disclosure, the display panel includes a package layer located in the display area and the peripheral area, and a first touch electrode layer located on a side of the package layer away from the base substrate, the first touch electrode layer including a plurality of first touch electrodes extending along the first direction and a plurality of second touch electrodes extending along the second direction, wherein each first touch electrode includes a plurality of first touch electrode units, each second touch electrode includes a plurality of second touch electrode units, the first touch electrode layer includes a plurality of touch electrode lines crossing to form a plurality of first meshes, and each of the first touch electrode units and each of the second touch electrode units includes and a touch insulating layer disposed between the first touch electrode layer and the second touch electrode layer, the touch insulating layer being formed on the base substrate such that the orthogonal projection of the touch electrode lines located in the display area is within the orthogonal projection of the pixel definition layer on the base substrate.

[0077] For example, in an embodiment of the present disclosure, each portion of the pixel definition layer in the display area has 80% or more of the orthogonal projection of the center line of the extension direction of the pixel definition layer on the base substrate within the orthogonal projection of the touch electrode line on the base substrate.

[0078] For example, in an embodiment of the present disclosure, a gap is formed between the first-color light-emitting layer of the first-color sub-pixel, the second-color light-emitting layer of the second-color sub-pixel, and the third-color light-emitting layer of the third-color sub-pixel, which are adjacent to each other; the shape of the first-color light-emitting layer includes a first rounded rectangle and a first protruding portion located at a rounded corner of the first rounded rectangle and protruding into the gap; the first protruding portion at least partially protrudes from an extension of a straight side of the first rounded rectangle that is closer to the second-color light-emitting layer; the shape of the third-color light-emitting layer includes a third rounded rectangle and a second protruding portion located at a rounded corner of the third rounded rectangle and protruding into the gap; the second protruding portion at least partially protrudes from an extension of a straight side of the third rounded rectangle that is closer to the second-color light-emitting layer; and orthogonal projections of the first protruding portion and the second protruding portion on the base substrate and orthogonal projections of the touch electrode lines on the base substrate at least partially overlap.

[0079] For example, in an embodiment of the present disclosure, in the display area, the orthogonal projection of 50% or more of the touch electrode lines on the base substrate is within the orthogonal projection of the overlapping portion of the light-emitting layer on the base substrate, and the overlapping portion of the light-emitting layer includes overlapping portions of at least two of a first color light-emitting layer, a second color light-emitting layer, and a third color light-emitting layer.

[0080] For example, in an embodiment of the present disclosure, in the display region, the orthogonal projection of the effective light-emitting area of ​​each of the subpixels on the base substrate is within the orthogonal projection of each of the first meshes on the base substrate, and the ratio of the area of ​​the opening of the first mesh corresponding to the subpixel of the first color to the area of ​​the first effective light-emitting area, and the ratio of the area of ​​the opening of the first mesh corresponding to the subpixel of the third color to the area of ​​the third effective light-emitting area are both smaller than the ratio of the area of ​​the opening of the first mesh corresponding to the subpixel of the second color to the area of ​​the second effective light-emitting area.

[0081] For example, in an embodiment of the present disclosure, each of the subpixels further includes a pixel circuit located between the second electrode and the base substrate and including a driving transistor, and at least one of the second electrode of the first color subpixel, the second electrode of the second color subpixel, and the second electrode of the third color subpixel overlaps with the touch electrode line, and / or at least one driving transistor of the first color subpixel, the second color subpixel, and the third color subpixel overlaps with the touch electrode line.

[0082] At least one embodiment of the present disclosure provides a display panel including a base substrate, a plurality of first color subpixels, a plurality of second color subpixels, a plurality of third color subpixels, and a pixel definition layer located on the base substrate, the base substrate including a display region and a peripheral region located on the periphery of the display region, the plurality of first color subpixels located in the display region and arranged along a first direction to form a plurality of first color subpixel rows, the plurality of first color subpixel rows being arranged along a second direction, adjacent first color subpixel rows being offset from each other along the first direction, the plurality of second color subpixels located in the display region and arranged in an array along the first and second directions, four second color subpixels surrounding one first color subpixel, and the plurality of third .... the pixel definition layer includes a plurality of openings disposed in the display region and the peripheral region to define effective light-emitting regions of the subpixels. The display panel further includes a plurality of photospacers disposed on a surface of the pixel definition layer away from the base substrate, the photospacers in the display region being disposed at intervals between the subpixels disposed in the first direction and the second direction, the photospacers in the display region being disposed at intervals between the subpixels disposed in the first direction, and the photospacers in the display region being disposed at intervals between the subpixels disposed in the second direction. In the display region, the area ratio K of the photospacer to the pixel definition layer is K≦S0 / [k1*n*m*(S1 G -S2 G )+k2*n*m*(S1 R -S2 R )+k2*n*m*(S1 B -S2B ) is satisfied, n represents the number of intermediate sub-pixels in the same row / column between adjacent photospacers among the photospacers arranged along the first direction, m represents the number of intermediate sub-pixels in the same row / column between adjacent photospacers among the photospacers arranged along the second direction, S0 represents the area of ​​one photospacer, and S1 G , S1 R , S1 B represent the areas of the light-emitting layers of the second color subpixel, the first color subpixel, and the third color subpixel, respectively, and S2 G , S2 R , S2 B represent the areas of the openings in the pixel definition layer corresponding to the second color subpixels, the first color subpixels, and the third color subpixels, respectively, and k1, k2, and k3 represent the proportions of the second color subpixels, the first color subpixels, and the third color subpixels in the display area to the total number of subpixels, respectively.

[0083] For example, in an embodiment of the present disclosure, the area ratio between the orthogonal projection of the photo spacer on the base substrate and the orthogonal projection of the pixel definition layer on the base substrate is 8% or less.

[0084] For example, in an embodiment of the present disclosure, the ratio of the number of the photospacers to the total number of sub-pixels in the display area is 1:16 or less.

[0085] For example, in an embodiment of the present disclosure, four subpixels of the second color are arranged between adjacent photospacers along the second direction, and two subpixels of the first color and two subpixels of the third color are arranged between adjacent photospacers along the first direction, or six subpixels of the second color are arranged between adjacent photospacers along the second direction, and three subpixels of the first color and three subpixels of the third color are arranged between adjacent photospacers along the first direction, or four subpixels of the second color are arranged between adjacent photospacers along the second direction, and three subpixels of the first color and three subpixels of the third color are arranged between adjacent photospacers along the first direction, or six subpixels of the second color are arranged between adjacent photospacers along the second direction, and two subpixels of the first color and two subpixels of the third color are arranged between adjacent photospacers along the first direction.

[0086] For example, in an embodiment of the present disclosure, each photospacer comprises a first region and a ring-shaped second region surrounding the first region, the first region comprises the central region of the photospacer, and the area ratio of the first region to the orthogonal projection of the photospacer on the base substrate is 1 / 4 or less, and within the display area, the first region of at least one of the photospacers does not overlap with any of the light-emitting layer of the first color subpixel, the light-emitting layer of the second color subpixel, or the light-emitting layer of the third color subpixel, or the first region of at least one of the photospacers overlaps with only the light-emitting layer of one color.

[0087] For example, in an embodiment of the present disclosure, the display panel includes a package layer located in the display area and the peripheral area, and a first touch electrode layer located on a side of the package layer away from the base substrate, the first touch electrode layer including a plurality of first touch electrodes extending along the first direction and a plurality of second touch electrodes extending along the second direction, wherein each first touch electrode includes a plurality of first touch electrode units, each second touch electrode includes a plurality of second touch electrode units, the first touch electrode layer includes a plurality of touch electrode lines crossing to form a plurality of first meshes, and each of the first touch electrode units and each of the second touch electrode units includes a plurality of connected first meshes. a second touch electrode layer including a plurality of connection bridges and a plurality of bridge connection lines crossing to form a second mesh, each of the connection bridges having a plurality of communicating second meshes, and adjacent second touch electrode units being electrically connected via at least one connection bridge; and a touch insulating layer located between the first touch electrode layer and the second touch electrode layer, the second touch electrode units being electrically connected to the connection bridges by passing through vias in the touch insulating layer, and within the display area, the bridge connection lines defining one second mesh overlap at most one photospacer.

[0088] For example, in an embodiment of the present disclosure, within the display area, the bridge connection line of the second mesh included in one connection bridge connecting adjacent second touch electrode units overlaps with at most three photo spacers, and all connection bridges connecting adjacent second touch electrode units overlap with at most four photo spacers.

[0089] For example, in an embodiment of the present disclosure, the plurality of first color sub-pixels comprise a plurality of first color light-emitting layers located in corresponding openings and on the pixel definition layer surrounding the corresponding openings, the plurality of second color sub-pixels comprise a second color light-emitting layer located in corresponding openings and on the pixel definition layer surrounding the corresponding openings, the plurality of first color light-emitting layers in the plurality of first color sub-pixels are spaced apart from one another, the plurality of second color light-emitting layers in the plurality of second color sub-pixels are spaced apart from one another, the plurality of third color sub-pixels comprise a plurality of third effective light-emitting areas, the plurality of third color sub-pixels comprise a plurality of third color light-emitting layers located in corresponding openings and on the pixel definition layer surrounding the corresponding openings, the plurality of third color light-emitting layers in the plurality of third color sub-pixels are spaced apart from one another, and each of the sub-pixels may include a first electrode and a base electrode. a second electrode located between the base substrate and the first electrode, wherein a total thickness of a functional film layer of each of the subpixels located between the first electrode and the second electrode and overlapping with both of the first electrode and the second electrode when projected on the base substrate is smaller than a depth of the opening corresponding to the subpixel, the functional film layer comprising a light-emitting layer, a first color light-emitting layer, a second color light-emitting layer, and a third color light-emitting layer, wherein a total thickness of the functional film layer of the first color subpixels located between the first electrode and the second electrode is thicker than a total thickness of the functional film layer of the second color subpixels located between the first electrode and the second electrode, and a total thickness of the functional film layer of the second color subpixels located between the first electrode and the second electrode is thicker than a total thickness of the functional film layer of the third color subpixels located between the first electrode and the second electrode.

[0090] For example, in an embodiment of the present disclosure, the functional film layer of each of the sub-pixels located between the first electrode and the second electrode further includes an auxiliary light-emitting layer located between the corresponding light-emitting layer and the second electrode, and the thickness of the auxiliary light-emitting layer of the first color sub-pixel is thicker than the thickness of the auxiliary light-emitting layer of the second color sub-pixel, and the thickness of the auxiliary light-emitting layer of the second color sub-pixel is thicker than the thickness of the auxiliary light-emitting layer of the third color sub-pixel.

[0091] For example, in an embodiment of the present disclosure, each of the sub-pixels includes a first electrode and a second electrode located between the base substrate and the first electrode, and in the display area, the first electrode is an entire film layer. The display panel includes a package layer located in the display area and the peripheral area, and a first touch electrode layer located on a side of the package layer away from the base substrate, the first touch electrode layer including a plurality of first touch electrodes extending along the first direction and a plurality of second touch electrodes extending along the second direction, wherein each of the first touch electrodes includes a plurality of first touch electrode units, each of the second touch electrodes includes a plurality of second touch electrode units, and the first touch electrode layer includes a plurality of touch electrode lines crossing to form a plurality of first meshes, and each of the first touch electrode units and each of the second touch electrode units includes a first touch electrode layer including a plurality of connected first meshes, and a plurality of connecting bridges forming a second mesh. the first touch electrode layer includes a plurality of bridge connection lines crossing each other so as to intersect with each other, each of the connection bridges having a plurality of communicating second meshes, and adjacent second touch electrode units are electrically connected through at least one connection bridge; and a touch insulating layer located between the first touch electrode layer and the second touch electrode layer, the second touch electrode units being electrically connected to the connection bridges by passing through vias in the touch insulating layer, wherein within the display area, a total thickness of the insulating layer between the first electrode located within an effective light-emitting area of ​​a subpixel and one of the first touch electrode layer and the second touch electrode layer which is closer to the first electrode is greater than a total thickness of the insulating layer between the first electrode located outside the effective light-emitting area of ​​each subpixel and one of the first touch electrode layer and the second touch electrode layer which is closer to the first electrode.

[0092] For example, in an embodiment of the present disclosure, each of the sub-pixels comprises a first electrode and a second electrode located between the base substrate and the first electrode, the pixel definition layer comprises a plurality of first definition portions and a plurality of second definition portions extending substantially along the first direction, the first definition portions and the second definition portions are arranged alternately along the second direction, the average heights of one of the first definition portions and one of the second definition portions located on both sides of sub-pixels in the same row arranged along the first direction in the second direction are different in the second direction, the average heights of the plurality of first definition portions located within the display area are substantially the same, the average heights of the plurality of second definition portions located within the display area are substantially the same, the average height of the first definition portion is the average height from a surface of the first definition portion facing away from the base substrate to a plane including a surface of the main electrode of the second electrode facing away from the base substrate, and the average height of the second definition portion is the average height from the surface of the second definition portion facing away from the base substrate to a plane including a surface of the main electrode of the second electrode facing away from the base substrate.

[0093] For example, in an embodiment of the present disclosure, the average height of one of the first definition portions is greater than the average height of one of the second definition portions, and the average height of the pixel definition layer in the peripheral region is greater than the average height of one of the second definition portions.

[0094] For example, in an embodiment of the present disclosure, two adjacent rows of sub-pixels arranged along the second direction constitute one pixel unit row, and the average height of two first definition portions located on both sides of one pixel unit row in the second direction is greater than the average height of one second definition portion located between two rows of sub-pixels in this one pixel unit row.

[0095] For example, in an embodiment of the present disclosure, the pixel array structure consisting of the plurality of first color subpixels, the plurality of second color subpixels, and the plurality of third color subpixels comprises a plurality of minimal repeating units arranged along the first direction, each of the minimal repeating units comprising one first color subpixel, one third color subpixel, and two second color subpixels distributed in two subpixel rows, and in the second direction, the first definition portion is located on both sides of the minimal repeating unit arranged along the first direction, and the second definition portion is located at the interval between the two subpixel rows in which the minimal repeating units are distributed. For example, in an embodiment of the present disclosure, the pixel definition layer comprises a flat portion and an inclined portion surrounding each of the openings and including a first sub-inclined portion close to the flat portion and a second sub-inclined portion away from the flat portion, and along the third direction or the fourth direction, the ratio of the sizes of the orthogonal projections of the first sub-inclined portion and the second sub-inclined portion on the base substrate is 1 / 4 or less, and the average inclination angle of the first sub-inclined portion is smaller than the average inclination angle of the second sub-inclined portion.

[0096] For example, in an embodiment of the present disclosure, the plurality of first color subpixels include a plurality of first effective light-emitting areas, the plurality of second color subpixels include a plurality of second effective light-emitting areas, an area of ​​one of the second effective light-emitting areas is smaller than an area of ​​one of the first effective light-emitting areas, the plurality of first color subpixels include a plurality of first color light-emitting layers located in corresponding ones of the openings and on the pixel defining layer surrounding the corresponding openings, the plurality of second color subpixels include a second color light-emitting layer located in corresponding ones of the openings and on the pixel defining layer surrounding the corresponding openings, the plurality of first color light-emitting layers included in the plurality of first color subpixels are spaced apart from one another, the plurality of second color light-emitting layers included in the plurality of second color subpixels are spaced apart from one another, an area ratio of the first color light-emitting layers and the first effective light-emitting areas corresponding to the same first color subpixel when orthogonally projected on the base substrate is a first area ratio, an area ratio of the second color light-emitting layers and the second effective light-emitting areas corresponding to the same second color subpixel when orthogonally projected on the base substrate is a second area ratio, and the first area is smaller than the second area ratio.

[0097] For example, in an embodiment of the present disclosure, at least some of the second effective light-emitting regions have a length direction and a width direction, the length direction is an extension direction of a line connecting the two farthest points in the second effective light-emitting region, the width direction and the length direction of the same second effective light-emitting region are approximately perpendicular, and for the same second effective light-emitting region, along the length direction, the ratio of the maximum size of the second color light-emitting layer corresponding to the second effective light-emitting region to the maximum size of the second effective light-emitting region is a first ratio, and along the width direction, the ratio of the maximum size of the second color light-emitting layer corresponding to the second effective light-emitting region to the maximum size of the second effective light-emitting region is a second ratio, and the first ratio is smaller than the second ratio.

[0098] For example, in an embodiment of the present disclosure, for the same second effective light-emitting area, the difference between the maximum size of the second color light-emitting layer and the maximum size of the second effective light-emitting area along the length direction is a first difference, and the difference between the maximum size of the second color light-emitting layer and the maximum size of the second effective light-emitting area along the width direction is a second difference, and the first difference is smaller than the second difference.

[0099] For example, in an embodiment of the present disclosure, the ratio of the maximum lengthwise size of the corresponding second effective light-emitting region of the second color light-emitting layer to the maximum widthwise size of the corresponding second effective light-emitting region of the second color light-emitting layer is smaller than the ratio of the maximum lengthwise size of the second effective light-emitting region to the maximum widthwise size of the second effective light-emitting region.

[0100] For example, in an embodiment of the present disclosure, the plurality of third color subpixels include a plurality of third effective light-emitting areas, an area of ​​one of the second effective light-emitting areas is smaller than an area of ​​one of the third effective light-emitting areas, the plurality of third color subpixels include a plurality of third color light-emitting layers located within the corresponding openings and on the pixel definition layer surrounding the corresponding openings, the plurality of third color light-emitting layers included in the plurality of third color subpixels are spaced apart from each other, and an area ratio of the third color light-emitting layer and the third effective light-emitting area corresponding to the same third color subpixel, when projected orthogonally on the base substrate, is a third area ratio, which is smaller than the second area ratio.

[0101] For example, in an embodiment of the present disclosure, the area of ​​the first effective light-emitting area of ​​one of the first color sub-pixels is smaller than the area of ​​the third effective light-emitting area of ​​one of the third color sub-pixels, and the first area ratio is greater than the third area ratio.

[0102] For example, in an embodiment of the present disclosure, the subpixel comprises a first electrode and a second electrode located between the base substrate and the first electrode, the pixel definition layer comprises a plurality of first definition portions and a plurality of second definition portions extending substantially along the first direction, the first definition portions and the second definition portions are arranged alternately along the second direction, one first definition portion and one second definition portion located on both sides of subpixels in the same row arranged along the first direction have different average heights in the second direction, the average heights of the plurality of first definition portions located within the display area are substantially the same, the average heights of the plurality of second definition portions located within the display area are substantially the same, the average height of the first definition portion is the average height from a surface of the first definition portion facing away from the base substrate to a plane including a surface of a main electrode of the second electrode facing away from the base substrate, and the average height of the second definition portion is the average height from the surface of the second definition portion facing away from the base substrate to a plane including a surface of a main electrode of the second electrode facing away from the base substrate.

[0103] For example, in an embodiment of the present disclosure, the average height of one of the first definition portions is greater than the average height of one of the second definition portions, and the average height of the pixel definition layer in the peripheral region is greater than the average height of one of the second definition portions.

[0104] For example, in an embodiment of the present disclosure, two adjacent rows of sub-pixels arranged along the second direction constitute one pixel unit row, and the average height of two first definition portions located on both sides of one pixel unit row in the second direction is greater than the average height of one second definition portion located between two rows of sub-pixels in this one pixel unit row.

[0105] For example, in an embodiment of the present disclosure, the pixel array structure consisting of the plurality of first color subpixels, the plurality of second color subpixels, and the plurality of third color subpixels comprises a plurality of minimal repeating units arranged along the first direction, each of the minimal repeating units comprising one first color subpixel, one third color subpixel, and two second color subpixels distributed in two subpixel rows, and in the second direction, the first definition portion is located on both sides of the minimal repeating unit arranged along the first direction, and the second definition portion is located at the interval between the two subpixel rows in which the minimal repeating units are distributed.

[0106] At least one embodiment of the present disclosure provides a display panel, the display panel including a base substrate including a display area and a peripheral area located around the display area; a plurality of first-color subpixels located in the display area and arranged along a first direction to form a plurality of first-color subpixel rows, the plurality of first-color subpixel rows being arranged along a second direction, wherein adjacent first-color subpixel rows are shifted from each other along the first direction; a plurality of second-color subpixels located in the display area and arranged in an array along the first direction and the second direction, wherein four second-color subpixels surround one first-color subpixel; and a plurality of third-color subpixels located in the display area, wherein the plurality of first-color subpixels and the plurality of third-color subpixels are shifted from each other along the first direction and the second direction. a plurality of third color subpixels arranged alternately along a fourth direction, the plurality of first color subpixels and the plurality of second color subpixels being arranged alternately along a third direction to form a first group, the plurality of third color subpixels and the plurality of second color subpixels being arranged alternately along the third direction to form a second group, the first group and the second group being alternately distributed along a fourth direction, the third direction and the fourth direction intersecting both the first direction and the second direction; and a pixel definition layer located in the display region and the peripheral region, the pixel definition layer including a plurality of openings to define effective light-emitting areas of the plurality of subpixels, the plurality of first color subpixels having a plurality of first effective light-emitting areas, the plurality of second color subpixels having a plurality of second effective light-emitting areas, and the plurality of third color subpixels having a plurality of third effective light-emitting areas.The plurality of first color sub-pixels comprise a plurality of first color light-emitting layers located in corresponding openings and on the pixel definition layer surrounding the corresponding openings, the plurality of second color sub-pixels comprise a plurality of second color light-emitting layers located in corresponding openings and on the pixel definition layer surrounding the corresponding openings, the plurality of first color light-emitting layers in the plurality of first color sub-pixels being spaced apart from one another, the plurality of second color light-emitting layers in the plurality of second color sub-pixels being spaced apart from one another, and the plurality of third color sub-pixels comprise a plurality of third color light-emitting layers located in corresponding openings and on the pixel definition layer surrounding the corresponding openings, and the plurality of third color light-emitting layers in the plurality of third color sub-pixels being spaced apart from one another. The display panel includes a package layer located in the display area and the peripheral area, and a first touch electrode layer located on a side of the package layer away from the base substrate, the first touch electrodes extending along the first direction and the second touch electrodes extending along the second direction, each of the first touch electrodes including a plurality of first touch electrode units, each of the second touch electrodes including a plurality of second touch electrode units, the first touch electrode layer including a plurality of touch electrode lines crossing each other to form a plurality of first meshes, and each of the first touch electrode units and each of the second touch electrode units including a plurality of connected a second touch electrode layer including a plurality of connecting bridges and a plurality of bridge connecting lines crossing to form a second mesh, each of the connecting bridges including a plurality of communicating second meshes, and adjacent second touch electrode units being electrically connected via at least one connecting bridge; and a touch insulating layer located between the first touch electrode layer and the second touch electrode layer, the second touch electrode units being electrically connected to the connecting bridges by passing through vias in the touch insulating layer. Orthogonal projections of the plurality of touch electrode lines located in the display area on the base substrate are within orthogonal projections of the pixel definition layer on the base substrate.

[0107] At least one embodiment of the present disclosure provides a display panel including a base substrate including a display area and a peripheral area located around the display area, and a plurality of sub-pixels located in the display area. Each of the sub-pixels includes a first electrode and a second electrode located between the base substrate and the first electrode, and the first electrode is an entire film layer within the display area. The display panel includes a package layer located in the display area and the peripheral area, and a first touch electrode layer located on a side of the package layer away from the base substrate, the first touch electrode layer including a plurality of first touch electrodes extending along the first direction and a plurality of second touch electrodes extending along the second direction, each of the first touch electrodes including a plurality of first touch electrode units, each of the second touch electrodes including a plurality of second touch electrode units, and the first touch electrode layer including a plurality of touch electrode lines crossing to form a plurality of first meshes, and each of the first touch electrode units and each of the second touch electrode units including a plurality of connected the first touch electrode layer including a first mesh through which connecting bridges and a second touch electrode layer including a plurality of bridge connecting lines crossing to form a plurality of connecting bridges and a second mesh, each connecting bridge having a plurality of communicating second meshes, and adjacent second touch electrode units being electrically connected through at least one connecting bridge; and a touch insulating layer located between the first touch electrode layer and the second touch electrode layer, the second touch electrode units being electrically connected to the connecting bridges by passing through vias in the touch insulating layer. Within the display area, the total thickness of the insulating layer between the first electrode located within an effective light-emitting area of ​​each subpixel and one of the first touch electrode layer and the second touch electrode layer that is closer to the first electrode is greater than the total thickness of the insulating layer between the first electrode located outside the effective light-emitting area of ​​each subpixel and one of the first touch electrode layer and the second touch electrode layer that is closer to the first electrode.

[0108] At least one embodiment of the present disclosure provides a display device including the above-described display panel. In order to more clearly explain the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments are briefly introduced below. It should be apparent that the drawings in the following description are only some embodiments of the present disclosure and are not intended to limit the present disclosure. [Brief explanation of the drawings]

[0109] [Figure 1A] FIG. 2 is a partial planar structural schematic diagram of a display panel according to an example embodiment of the present disclosure. [Figure 1B] FIG. 10 is a partial planar structural schematic diagram of a display panel according to another example of an embodiment of the present disclosure. [Figure 1C] FIG. 10 is a schematic plan view of an opening in a pixel definition layer of a display panel according to another example of an embodiment of the present disclosure. [Figure 1D] 1A to 1C are schematic diagrams illustrating various pixel arrangement structures on a display panel according to an embodiment of the present disclosure. [Figure 1E] 1A to 1C are schematic diagrams illustrating various pixel arrangement structures on a display panel according to an embodiment of the present disclosure. [Figure 1F] 1A to 1C are schematic diagrams illustrating various pixel arrangement structures on a display panel according to an embodiment of the present disclosure. [Figure 1G] 1A to 1C are schematic diagrams illustrating various pixel arrangement structures on a display panel according to an embodiment of the present disclosure. [Figure 1H] 1A to 1C are schematic diagrams illustrating various pixel arrangement structures on a display panel according to an embodiment of the present disclosure. [Figure 2] FIG. 1B is a partial cross-sectional structural schematic diagram taken along line AA shown in FIG. 1A. [Figure 3] 1B is a partial cross-sectional structural schematic diagram taken along line BB shown in FIG. 1A. [Figure 4] 1 is a partial planar structural schematic diagram of a touch structure in a display panel according to an embodiment of the present disclosure; [Figure 5] FIG. 5 is an enlarged schematic structural view of region C shown in FIG. [Figure 6] FIG. 6 is a partial cross-sectional structural schematic view taken along line DD shown in FIG. 5. [Figure 7] FIG. 6 is a partial cross-sectional structural schematic view taken along line EE shown in FIG. 5. [Figure 8]3 is a schematic diagram illustrating the positional relationship between a touch electrode and an effective light-emitting area of ​​each sub-pixel. FIG. [Figure 9] FIG. 9 is an enlarged view of region F in FIG. 8. [Figure 10] FIG. 10 is a partial planar structural schematic diagram of a pixel structure according to another embodiment of the present disclosure. [Figure 11] 11 is a schematic diagram showing the positional relationship between the pixel structure and the touch electrode lines shown in FIG. 10. FIG. [Figure 12A] FIG. 2 is a schematic diagram of a pixel circuit included in each sub-pixel. [Figure 12B] This is the positional relationship between the active layer of each sub-pixel and each transistor in the gate line layer. [Figure 13A] 10A and 10B are schematic diagrams illustrating the positional relationship between a plurality of types of pixel circuits and touch electrode lines according to an embodiment of the present disclosure. [Figure 13B] 10A and 10B are schematic diagrams illustrating the positional relationship between a plurality of types of pixel circuits and touch electrode lines according to an embodiment of the present disclosure. [Figure 13C] 10A and 10B are schematic diagrams illustrating the positional relationship between a plurality of types of pixel circuits and touch electrode lines according to an embodiment of the present disclosure. [Figure 13D] 10A and 10B are schematic diagrams illustrating the positional relationship between a plurality of types of pixel circuits and touch electrode lines according to an embodiment of the present disclosure. [Figure 13E] 10A and 10B are schematic diagrams illustrating the positional relationship between a plurality of types of pixel circuits and touch electrode lines according to an embodiment of the present disclosure. [Figure 14A] Schematic diagram of the use of FMM vapor-deposited light-emitting layers. [Figure 14B] FIG. 2 is a schematic diagram illustrating the positional relationship between a pixel defining layer and a photospacer. [Figure 15A] 1A to 1C are schematic diagrams illustrating various types of positional relationships between photospacers and sub-pixels according to an embodiment of the present disclosure. [Figure 15B] 1A to 1C are schematic diagrams illustrating various types of positional relationships between photospacers and sub-pixels according to an embodiment of the present disclosure. [Figure 15C] 1A to 1C are schematic diagrams illustrating various types of positional relationships between photospacers and sub-pixels according to an embodiment of the present disclosure. [Figure 15D] 1A to 1C are schematic diagrams illustrating various types of positional relationships between photospacers and sub-pixels according to an embodiment of the present disclosure. [Figure 15E] 1A to 1C are schematic diagrams illustrating various types of positional relationships between photospacers and sub-pixels according to an embodiment of the present disclosure. [Figure 15F] 1A to 1C are schematic diagrams illustrating various types of positional relationships between photospacers and sub-pixels according to an embodiment of the present disclosure. [Figure 15G] 1A to 1C are schematic diagrams illustrating various types of positional relationships between photospacers and sub-pixels according to an embodiment of the present disclosure. [Figure 16] FIG. 1B is a partial cross-sectional structural schematic diagram taken along line GG shown in FIG. 1A. [Figure 17A] FIG. 2 is a plan view schematically illustrating a pixel definition layer and an effective light-emitting region in a display area according to an embodiment of the present disclosure. [Figure 17B] 3A and 3B are schematic planar structural diagrams of pixel definition layers in the peripheral region and the display region at two different positions, respectively. [Figure 17C] 3A and 3B are schematic planar structural diagrams of pixel definition layers in the peripheral region and the display region at two different positions, respectively. [Figure 17D] FIG. 10 is a schematic diagram illustrating the planar structure of a pixel definition layer in a display region according to another example. [Figure 18] FIG. 17B is a partial cross-sectional structural schematic diagram taken along line HH shown in FIG. 17A. [Figure 19] 1B is a partial cross-sectional structural schematic diagram of the transition region shown in FIG. 1A. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0110] In order to clarify the objectives, technical solutions and advantages of the embodiments of the present disclosure, the technical solutions of the embodiments of the present disclosure will be described below clearly and completely with reference to the drawings of the embodiments of the present disclosure. It is obvious that the embodiments described are only some embodiments of the present disclosure, and not all embodiments. Based on the described embodiments of the present disclosure, other embodiments that can be obtained by those skilled in the art without requiring creative work also fall within the scope of the present disclosure.

[0111] Unless otherwise defined, technical or scientific terms used in this disclosure should have the ordinary meaning that can be understood by a person skilled in the art of this disclosure. The terms "first," "second," and similar terms used in this disclosure do not denote any order, quantity, or importance, but are used only to distinguish different components. Terms such as "comprise" or "include" mean that the element or component shown before the term covers the element or component listed after the term and its equivalents, but does not exclude other elements or components.

[0112] Through research, the inventors of the present application have found that with the development of display technology, the requirements for display resolution are increasing, and the application range of high-resolution display devices, which have advantages such as high display quality, is also expanding. Typically, the resolution of a display device is improved by reducing the pixel size and the distance between pixels. However, as the pixel size and the distance between pixels are reduced, the requirements for precision in the manufacturing process also increase, which causes the manufacturing process of the display device to become more difficult and increases the processing costs. An embodiment of the present disclosure provides a display panel and a display device, the display panel comprising: a base substrate including a display area and a peripheral area located around the display area; a plurality of first-color subpixels located in the display area and arranged along a first direction to form a plurality of first-color subpixel rows, the plurality of first-color subpixel rows being arranged along a second direction, with adjacent first-color subpixel rows being offset from each other along the first direction; a plurality of second-color subpixels located in the display area and arranged in an array along the first and second directions, where four second-color subpixels surround one first-color subpixel; and a pixel definition layer located in the display area and the peripheral area, the pixel definition layer having a plurality of openings to define an effective light-emitting area of ​​each subpixel, each first-color subpixel having a first effective light-emitting area and each second-color subpixel having a second effective light-emitting area, the area of ​​the second effective light-emitting area being smaller than the area of ​​the first effective light-emitting area.

[0113] In some embodiments, a first-color subpixel includes a first effective light-emitting area, and a second-color subpixel includes a second effective light-emitting area, the area of ​​which is smaller than the area of ​​the first effective light-emitting area. In some embodiments, a first-color subpixel includes at least two first effective light-emitting areas, or a second-color subpixel includes at least two second effective light-emitting areas, the total area of ​​all second effective light-emitting areas in a second-color subpixel is smaller than the total area of ​​all first effective light-emitting areas in a first-color subpixel. In some embodiments, each first effective light-emitting area and each second effective light-emitting area are spaced apart. In some embodiments, each first effective light-emitting area and each second effective light-emitting area are defined by a plurality of spaced-apart openings formed in a pixel defining layer. In some embodiments, each first effective light-emitting area is defined by a light-emitting layer of a corresponding first-color subpixel that is located between an anode and a cathode facing each other in a direction perpendicular to the base substrate and is driven to emit light. In some embodiments, each second effective light-emitting area is defined by a light-emitting layer of a corresponding second-color subpixel that is driven to emit light and is located between an anode and a cathode that face each other in a direction perpendicular to the base substrate. In some embodiments, each first effective light-emitting area and each second effective light-emitting area are defined by a corresponding light-emitting layer and an electrode (anode or cathode) or a portion of an electrode through which the corresponding light-emitting layer carriers (holes or electrons) are transported. In some embodiments, each first effective light-emitting area and each second effective light-emitting area are defined by at least a portion of the cathode and at least a portion of the anode that are orthogonally projected on the base substrate, and at least a portion of the cathode and at least a portion of the anode do not overlap in orthogonal projections of a first insulating layer on the base substrate, the first insulating layer being located between the cathode and the anode in a direction perpendicular to the base substrate. For example, the first insulating layer comprises a pixel-defining layer.In some embodiments, each of the first-color subpixels and each of the second-color subpixels comprises a first electrode, a light-emitting layer located on a side of the first electrode facing away from the base substrate, and a second electrode located on a side of the light-emitting layer facing away from the first electrode, wherein a second insulating layer having an opening overlaps a projection of the first electrode or the second electrode on the base substrate between the first electrode and the light-emitting layer and / or between the second electrode and the light-emitting layer in a direction perpendicular to the base substrate, the opening of the second insulating layer on the side facing the light-emitting layer exposing at least a portion of the first electrode or the second electrode so as to contact the light-emitting layer or the auxiliary light-emitting functional layer, and each of the first effective light-emitting areas and each of the second effective light-emitting areas is defined by a portion of the first electrode or the second electrode in contact with the light-emitting layer or the auxiliary light-emitting functional layer. In some embodiments, the second insulating layer comprises a pixel-defining layer. In some embodiments, the auxiliary light-emitting functional layer may be any one or more of a hole injection layer, a hole transport layer, an electron transport layer, a hole barrier layer, an electron barrier layer, an electron injection layer, an auxiliary light-emitting layer, an interface improvement layer, an anti-reflection layer, etc. In some embodiments, the first electrode may be an anode, and the second electrode may be a cathode. In some embodiments, the first electrode may include at least two layers of indium tin oxide (ITO) and silver (Ag), for example, three layers of ITO, Ag, and ITO. In some embodiments, the second electrode may include any one or more of magnesium (Mg), Ag, ITO, and indium zinc oxide (IZO), for example, a mixed layer or alloy layer of Mg and Ag.

[0114] Each subpixel comprises an emissive layer, each first color subpixel comprises a first color emissive layer located within the aperture and on the pixel definition layer, each second color subpixel comprises a second color emissive layer located within the aperture and on the pixel definition layer, and an area ratio of the first color emissive layer and the first effective emissive region of each first color subpixel, as orthogonally projected on the base substrate, is smaller than an area ratio of the second color emissive layer and the second effective emissive region of each second color subpixel, as orthogonally projected on the base substrate.

[0115] Typically, the quality of the emissive layer located within the effective light-emitting area significantly impacts the display performance of that subpixel. When deposited using a vapor deposition process such as the FMM process (described below), multiple effective light-emitting areas within the display area correspond one-to-one to multiple light-emitting layer patterns, and the light-emitting layer patterns correspond one-to-one to openings on the FMM (fine metal mask). If the FMM and the display panel are misaligned, or if problems such as material unevenness caused by the evaporation source occur, the smaller the effective light-emitting area of ​​the subpixel, the greater the likelihood of quality degradation of the emissive layer within the effective light-emitting area. Even if the deviation is too large and quality degradation of the emissive layer within the effective light-emitting area of ​​all subpixels of all colors occurs, the subpixel with the smallest effective light-emitting area will be the most affected. If the subpixel with the smallest effective light-emitting area is a subpixel of a certain color, such as a green subpixel, which has the greatest impact on display brightness, display uniformity, and other display parameters, the display panel will experience display problems such as black spots, jagged edges, brightness unevenness, and color cast. In the embodiments of the present disclosure, the area ratio of the second-color light-emitting layer to the second effective light-emitting area of ​​the second-color subpixel is set to be larger than the area ratio of the first-color light-emitting layer to the first effective light-emitting area of ​​the first-color subpixel, thereby enabling a relatively large precision margin to be set in the deposition process of the second-color subpixel, whose single effective light-emitting area is relatively small, thereby improving the stability of the quality of the second-color light-emitting layer formed in the second effective light-emitting area and reducing the impact of deviations and fluctuations caused by the deposition process on the display quality of each subpixel.

[0116] The area of ​​each light-emitting layer may be measured, for example, by the following testing methods. For example, the area of ​​the light-emitting layer may be measured by taking a photograph using a fluorescence microscope, or the boundary of the light-emitting layer may be obtained by exciting a light-emitting (EL) material with ultraviolet light and utilizing the photoluminescence phenomenon that occurs. For example, the area may be tested using a time-of-flight secondary ion mass spectrometry (TOF-SIMS). TOF-SIMS is an extremely high-resolution measurement technique that excites the sample surface with primary ions to emit very small amounts of secondary ions, and measures the ion mass by utilizing the difference in the flight time of the secondary ions to the detector depending on their mass. Of course, the area and boundary of each light-emitting layer may also be tested using other conventional testing methods.

[0117] Hereinafter, a display panel and a display device according to an embodiment of the present disclosure will be described with reference to the drawings.

[0118] FIG. 1A is a partial planar structural schematic diagram of a display panel according to an embodiment of the present disclosure, and FIG. 2 is a partial cross-sectional structural schematic diagram taken along line AA shown in FIG. 1A. As shown in FIGS. 1A and 2, the display panel includes a base substrate 10 including a display area 11 and a peripheral area 12 located around the display area 11. For example, the display area 11 is an area for display, e.g., an area including illuminable pixels, and the boundary of the display area may be defined by the illuminable pixels in the first and last rows and the first and last columns, and the peripheral area 12 surrounds the display area 11 and is an area not used for display. For example, in some embodiments, the display area may include dummy pixels, e.g., pixels having a light-emitting layer formed thereon but not used for display. The display panel includes a plurality of first-color subpixels 100 and a plurality of second-color subpixels 200 located in a display region 11 on a base substrate 10. The plurality of first-color subpixels 100 are arranged along a first direction (i.e., the X direction) to form a plurality of first-color subpixel rows 1001. The plurality of first-color subpixel rows 1001 are arranged along a second direction (i.e., the Y direction), among which adjacent first-color subpixel rows 1001 are shifted from each other along the first direction, i.e., adjacent first-color subpixel rows 1001 have a certain offset in the first direction, and therefore, the first-color subpixels 100 in adjacent first-color subpixel rows 1001 are not aligned in the second direction. For example, the pixel arrangement pattern of the first-color subpixel rows 1001 in odd-numbered rows is the same, and the pixel arrangement pattern of the first-color subpixel rows 1001 in even-numbered rows is the same. For example, the offset amount in the first direction of adjacent first-color subpixel rows 1001 is approximately one pitch. In some embodiments, the pitch is, for example, half the distance between the centers of the effective light-emitting areas of two first-color subpixels 100 adjacent to each other along the first direction, where the centers of the effective light-emitting areas are the geometric centers of the planar shapes of the effective light-emitting areas. In some embodiments, the pitch is, for example, approximately equal to the size in the row direction of pixel drive circuits for two subpixels. In some embodiments, the pitch is, for example, approximately equal to the size in the column direction of pixel drive circuits for one subpixel.In some embodiments, the pitch is approximately equal to the row size of the display area divided by the number of pixels in the row, or approximately equal to the column size of the display area divided by the number of pixels in the column. For example, in the case of a QHD (Quarter High Definition) product, the resolution is 960 x 540, and the pitch is approximately equal to the row size of the display area divided by 960 or the column size of the display area divided by 540. In the case of an HD (High Definition) product, the pitch is approximately equal to the row size of the display area divided by 1280 or the column size of the display area divided by 720. In the case of an FHD (Full High Definition) product, the pitch is approximately equal to the row size of the display area divided by 1920 or the column size of the display area divided by 1080. In the case of a QHD (Quad High Definition) product, the pitch is approximately equal to the row size of the display area divided by 2560 or the column size of the display area divided by 1440. In the case of a UHD (Ultra High In the case of a (Non-Patent Document Definition) product, the pitch is approximately equal to the row size of the display area divided by 3840, or the column size of the display area divided by 2160, and so on. The above-mentioned adjacent first color subpixel rows means that there are no other first color subpixel rows between two first color subpixel rows.

[0119] 1A , a plurality of second-color subpixels 200 are arranged in an array along the first and second directions, with four second-color subpixels 200 surrounding each first-color subpixel 100. That is, the second-color subpixels 200 and the first-color subpixels 100 are in different rows and columns, and one row of second-color subpixels 200 (i.e., a second-color subpixel row) arranged along the first direction is provided between adjacent first-color subpixel rows 1001, with the first-color subpixel rows 1001 and second-color subpixel rows alternately arranged. Similarly, one column of second-color subpixels 200 (i.e., a second-color subpixel column) arranged along the second direction is provided between adjacent first-color subpixel columns, with the first-color subpixel columns and second-color subpixel columns alternately arranged.

[0120] For example, the distances from the centers of the four second-color subpixels to the center of the first-color subpixel are approximately the same. For example, of the second-color subpixels surrounding a first-color subpixel, only four are closest to the first-color subpixel, and the distances from the centers of these four second-color subpixels to the center of the first-color subpixel are approximately the same. "Closest" means that no other first-color subpixel or second-color subpixel passes through the connecting line between the centers of the first-color subpixel and the second-color subpixel.

[0121] For example, the above-described arrangement in which four second-color subpixels surround one first-color subpixel may be the arrangement pattern within the display area, and the arrangement pattern at the edge of the display area may be different from the arrangement pattern within the display area. For example, at the edge of the display area, if the first-color subpixel is the subpixel in the first row or column, or the subpixel in the last row or column, only two second-color subpixels may surround the first-color subpixel. For example, if the edge of the display area has rounded corners or is an irregular-shaped display area, such as a non-rectangular display area such as a circular display area, or a rectangular display area with a hole near an edge, the first-color subpixel may be surrounded by one, two, or three second-color subpixels at the edge of the display area.

[0122] Although the embodiments of the present disclosure describe the above array structure, the pixel structure is not limited to this, and the number of subpixels is not limited. For example, a stripe array structure may be used, or a triangular array structure, a mosaic array, a letter-shaped array, or other combinations of different sizes, shapes, and positions may be used. For example, the sizes of RGB may be the same or different. For example, the size of the opening in the pixel defining layer of a single subpixel may be such that B is larger than R and B is larger than G. For example, the size of the opening in the pixel defining layer of a single subpixel may be such that B is larger than R and R is larger than G. For example, the size of the opening in the pixel defining layer of a single subpixel may be such that B is larger than R and R is equal to G. For example, the size of the opening in the pixel defining layer of a single subpixel may be such that B is equal to R and R is larger than G. For example, the size of the opening in the pixel defining layer of a single subpixel may be such that R is larger than G. For example, for the size of the opening in the pixel definition layer of a single subpixel, G may be larger than R. For example, for the size of the opening in the pixel definition layer of a single subpixel, G may be larger than B. For example, the number of subpixels included in each repeating unit or pixel unit may be any one or combination of two or more of 2, 3, 4, 5, 6, 7, 8, 9, 10, etc. For example, the ratio of R:G:B included in each repeating unit or pixel unit may be any one or combination of two or more of 1:2:1, 1:1:2, 1:1:1, 1:2:2, 2:2:1, 1:2:3, 3:3:2, 1:3:2, 2:3:1, 3:2:3, 2:3:3, etc. For example, the types of colors of the subpixels may include any one of two, three, four, five, or six types. For example, the color of each sub-pixel may be selected from any one or a combination of multiple colors of red, green, blue, white, yellow, cyan, magenta, orange, and the like.

[0123] 1A and 2 , the display panel further includes a pixel definition layer 400 located in the display area 11 and the peripheral area 12. The pixel definition layer 400 may form an opening 401 corresponding to each subpixel based on a subpixel arrangement structure. That is, the pixel definition layer 400 may have a plurality of openings 401 to define effective light-emitting areas of the subpixels, and the shape of the effective light-emitting area of ​​each subpixel may be defined by the opening 401 in the pixel definition layer 400. The plurality of first-color subpixels 100 include a plurality of first effective light-emitting areas 101, and the plurality of second-color subpixels 200 include a plurality of second effective light-emitting areas 201, with the area of ​​each second effective light-emitting area 201 being smaller than the area of ​​each first effective light-emitting area 101.

[0124] In some embodiments, the effective light-emitting area of ​​each sub-pixel may not be defined by an opening in the pixel defining layer, but may be defined directly by the actual light-emitting area of ​​each sub-pixel, for example.

[0125] For example, one sub-pixel corresponds to one effective light-emitting area, i.e., each sub-pixel has only one effective light-emitting area, but the embodiments of the present disclosure are not limited thereto, and for example, one sub-pixel may correspond to multiple effective light-emitting areas and be driven by a common pixel circuit or receive the same driving signal.

[0126] For example, the area of ​​each of the second effective light-emitting regions is larger than the area of ​​each of the first effective light-emitting regions. In some embodiments, the areas of the second effective light-emitting regions are approximately the same, and the areas of the first effective light-emitting regions are approximately the same. Here, approximately the same means that the error is within about 10%.

[0127] In some embodiments, the areas of the effective light-emitting areas of some of the subpixels of the same color may be different. For example, in some embodiments, when two subpixels of the same color are green, or two subpixels of the same color are red, or two subpixels of the same color are blue, or two pairs of subpixels of the same color (e.g., two green and two red subpixels) included in one repeat unit or pixel unit, the areas of the effective light-emitting areas of the subpixels of the same color may be different. In some embodiments, the areas of the effective light-emitting areas of the subpixels of the same color may be different or have different shapes at edge positions, irregularly shaped regions, folded regions, etc. from the areas of the effective light-emitting areas of the subpixels of the same color in other regions.

[0128] 1A and 2, each subpixel comprises a light-emitting layer, and each first color subpixel 100 comprises a first color light-emitting layer 110 located within the opening 401 and on the pixel defining layer 400, and each second color subpixel 200 comprises a second color light-emitting layer 210 located within the opening 401 and on the pixel defining layer 400. The first color light-emitting layers 110 included in the first color subpixels 100 are spaced apart from one another, and the second color light-emitting layers 210 included in the second color subpixels 200 are spaced apart from one another.

[0129] In some embodiments, the light-emitting layers of some colors may not be spaced apart, for example, two light-emitting layers of the same color fabricated in a 2-in-1 configuration (two light-emitting layers fabricated through one vapor deposition opening) may be continuous, with the light-emitting layers being integral (continuous in orthogonal projection on the base substrate, and in terms of processing, they may not actually be connected due to steps in the underlying film layers) and corresponding to two subpixels, with the light-emitting layers of each pair of subpixels being spaced apart from each other. In such a case, the light-emitting layers of a 3-in-1 configuration (three light-emitting layers fabricated through one vapor deposition opening) correspond to three subpixels, and the light-emitting layers of a 4-in-1 configuration (four light-emitting layers fabricated through one vapor deposition opening) correspond to four subpixels. For example, as shown in FIG. 1D , in the case of two light-emitting layers of the same color, e.g., the light-emitting layer of the second-color subpixel 200, which are fabricated 2-in-1 (two light-emitting layers are fabricated through one deposition opening), the ratio between the light-emitting layer of the two corresponding subpixels and the opening (or effective light-emitting area) of the pixel defining layer may be calculated from half the area of ​​the light-emitting layer and the area of ​​the opening of the pixel defining layer of the corresponding subpixel, if the sizes of the openings of the pixel defining layer of the two subpixels are approximately the same.

[0130] For example, as shown in FIGS. 1A and 2, a plurality of first-color subpixels 100 include a plurality of first-color light-emitting layers 110 located within corresponding openings 401 and on pixel definition layer 100 surrounding the corresponding openings 401, and a plurality of second-color subpixels 200 include a plurality of second-color light-emitting layers 210 located within corresponding openings 401 and on pixel definition layer 400 surrounding the corresponding openings. For example, as shown in FIGS. 1A and 2, the light-emitting layers of the subpixels of each color are present around the openings of the pixel definition layer, and for example, the portions of the light-emitting layers of the subpixels of each color that are located around the openings of the pixel definition layer are integral ring-shaped. For example, the pixel definition layer structures forming the pixel definition layer openings of the subpixels of each color may be dispersed or formed as an integral network structure. For example, the portions of the pixel definition layer away from the center of the display area that correspond to the pixel definition layer openings of the outermost column (row or column) may be integral with the peripheral pixel definition layer surrounding the display area, or the portions of the pixel definition layer may function as the peripheral pixel definition layer structure surrounding the display area. For example, a portion of the pixel definition layer away from the center of the display area corresponding to the outermost pixel definition layer opening in a column (row or column) has a size perpendicular to the extension direction of the corresponding edge that is larger than a portion of the pixel definition layer between adjacent pixel definition layer openings within the display area. For example, as shown in FIGS. 1A and 2 , the light-emitting layer located on the pixel definition layer and the light-emitting layer located within the openings are integral structures. The embodiments of the present disclosure are not limited thereto. The light-emitting layer located within the openings and the light-emitting layer located on the pixel definition layer may be disconnected, i.e., the light-emitting layer located within the openings and the light-emitting layer located on the pixel definition layer are not continuous film layers. For example, a film layer below the light-emitting layer may have a relatively large step, causing the film layer to be disconnected or discontinuous. In some embodiments, in each subpixel, the light-emitting layer located on the pixel definition layer and the light-emitting layer located within the openings are substantially continuous with each other when projected on the base substrate.

[0131] The area ratio between the orthogonal projection of the first-color light-emitting layer 110 of each first-color subpixel 100 on the base substrate 10 and the orthogonal projection of the first effective light-emitting area 101 on the base substrate 10 is smaller than the area ratio between the orthogonal projection of the second-color light-emitting layer 210 of each second-color subpixel 200 on the base substrate 10 and the orthogonal projection of the second effective light-emitting area 201 on the base substrate 10. For example, the area of ​​the orthogonal projection of the first-color light-emitting layer 110 on the base substrate 10 is larger than the area of ​​the orthogonal projection of the second-color light-emitting layer 210 on the base substrate 10.

[0132] For example, the area ratio of the orthogonal projection on the base substrate of the first-color light-emitting layer 110 and the first effective light-emitting area 101 corresponding to the same first-color sub-pixel 100 is a first area ratio, and the area ratio of the orthogonal projection on the base substrate of the second-color light-emitting layer 210 and the second effective light-emitting area 201 corresponding to the same second-color sub-pixel 200 is a second area ratio, and the first area ratio is smaller than the second area ratio.

[0133] For example, the first area ratio is the area ratio between one light-emitting layer of a first color and one first effective light-emitting region, i.e., the ratio obtained by dividing the area of ​​one light-emitting layer of a first color by the area of ​​one first effective light-emitting region. The second area ratio is the area ratio between one light-emitting layer of a second color and one second effective light-emitting region, i.e., the ratio obtained by dividing the area of ​​one light-emitting layer of a second color by the area of ​​one second effective light-emitting region. For example, both the first area ratio and the second area ratio are greater than 1. For example, the ranges of the first area ratio and the second area ratio may be 1 to 15. For example, the ranges of the first area ratio and the second area ratio may be 1 to 10. For example, the ranges of the first area ratio and the second area ratio may be 3 to 12. For example, the ranges of the first area ratio and the second area ratio may be 2 to 8. For example, the ranges of the first area ratio and the second area ratio may be 4 to 6. For example, the ranges of the first area ratio and the second area ratio may be 3 to 7. For example, the ranges of the first area ratio and the second area ratio may be 6 to 8. For example, the range of the first area ratio is about 3 to 5. For example, the first area ratio is 1.5 to 3. For example, the range of the first area ratio is about 3 to 4. For example, the range of the first area ratio is about 4 to 5. For example, the range of the first area ratio is about 4 to 6. For example, the range of the second area ratio is about 5 to 7. For example, the range of the second area ratio is about 6 to 7. For example, the range of the second area ratio is about 3 to 5. For example, the range of the second area ratio is about 3 to 6. For example, the range of the second area ratio is about 5 to 8. For example, the range of the second area ratio is about 4 to 9. For example, the second area ratio is 6.5 to 8.

[0134] For example, the area of ​​the first color light-emitting layer of one first color sub-pixel is larger than the area of ​​the second color light-emitting layer of one second color sub-pixel.

[0135] For example, the first color subpixel 100 may be a red subpixel or a blue subpixel, and the second color subpixel 200 is a green subpixel.

[0136] For example, the luminous efficiency of the first color subpixel is smaller than the luminous efficiency of the second color subpixel, and for example, the first area ratio of the corresponding first color subpixel is smaller than the second area ratio of the corresponding second color subpixel.

[0137] For example, the luminous efficiency of a subpixel refers to the intensity of light emitted from the light-emitting device of the subpixel under the same electrical signal conditions. For example, a higher light intensity of a subpixel is considered to have a higher luminous efficiency. For example, the same electrical signal conditions refer to the same voltage written to the data line. For example, the same electrical signal conditions refer to the same write current to the light-emitting device. For example, the luminous efficiency of a subpixel refers to the density of the current flowing through the light-emitting device under the same electrical signal conditions.

[0138] For example, the aperture ratio of the sub-pixels of the first color is greater than the aperture ratio of the sub-pixels of the second color.

[0139] For example, the aperture ratio of a first-color subpixel is the ratio of the area of ​​the first-color subpixel that is actually used to emit light to the area of ​​the display area, and the aperture ratio of a second-color subpixel is the ratio of the area of ​​the second-color subpixel that is actually used to emit light to the area of ​​the display area.

[0140] For example, in the embodiments of the present disclosure, the case where the first direction is perpendicular to the second direction is illustrated as an example, but the present disclosure is not limited thereto, and the first direction may not be perpendicular to the second direction.

[0141] For example, the light-emitting layer of each subpixel may be manufactured by a vapor deposition process. The vapor deposition process requires alignment of a vapor deposition mask with the display panel, and the evaporation source deposits the material of the light-emitting layer at the corresponding position on the display panel by heating. The vapor deposition mask includes a fine metal mask (FMM mask) with subpixel pattern openings corresponding to each subpixel. The FMM mask can form multiple independent patterns according to the structure of subpixels of different colors, thereby enabling patterns of different materials and thicknesses to be formed in different subpixels.

[0142] For each subpixel, the effective light-emitting area is located substantially within the opening of the pixel definition layer, e.g., has substantially the same area as the corresponding opening. The light-emitting area of ​​each subpixel determines the aperture ratio of the subpixel and further affects the display brightness of the subpixel in the display panel. To improve the aperture ratio and display quality of each subpixel, it is necessary to ensure the quality of the film layers located within the openings of the pixel definition layer as much as possible during the deposition process. Therefore, when depositing the light-emitting layers of each color using an FMM mask, the openings of the mask used to form patterns corresponding to the subpixels of different colors are typically set larger than the openings in the pixel definition layer so that the light-emitting layers deposited through the openings in the mask completely cover the openings in the pixel definition layer. As a result, the light-emitting layers of each subpixel of each color have a portion located within the opening of the pixel definition layer and another portion located on the surface of the pixel definition layer.

[0143] Due to variations in the alignment accuracy between the mask and the display panel to be deposited and the diffusivity of the evaporation source material, the process accuracy (i.e., the allowable offset between the opening in the fine metal mask and the opening in the pixel defining layer during deposition) for different subpixels varies when depositing using a fine metal mask. In organic light-emitting diode (OLED) display panels, the luminescent materials in the luminescent layers of subpixels of different colors have different service lives and luminous efficiencies. Therefore, the luminescent areas of subpixels of different colors may be set differently. For example, the luminescent area of ​​a first color subpixel (e.g., blue subpixel) is set to the largest, while the luminescent area of ​​a second color subpixel (e.g., green subpixel) is set to the smallest. The luminescent areas of subpixels of different colors necessitate different process accuracy requirements. When forming luminescent layers for subpixels with relatively small luminescent areas, changes in process accuracy are more likely to affect the quality stability of the film layers located within the opening in the pixel defining layer. Therefore, the process accuracy for subpixels of different colors can be adjusted according to the luminescent area of ​​the subpixel, such as the area of ​​the opening in the pixel defining layer. In the embodiments of the present disclosure, the area ratio between the second-color light-emitting layer and the second effective light-emitting area of ​​the second-color subpixel is set to be larger than the area ratio between the first-color light-emitting layer and the first effective light-emitting area of ​​the first-color subpixel, and the accuracy of the deposition process for the second-color subpixel having a relatively small effective light-emitting area is set to be relatively high, thereby ensuring that the deviation caused by the deposition process is uniform for each subpixel.

[0144] For example, each subpixel includes a first electrode, such as a cathode (described below), located on the side of the light-emitting layer away from the base substrate, and a second electrode, such as an anode (described below), located on the side of the light-emitting layer facing the base substrate. For example, the first-color subpixel 100 includes a second electrode 120 located on the side of the first-color light-emitting layer 110 facing the base substrate, and the second-color subpixel 200 includes a second electrode 220 located on the side of the second-color light-emitting layer 210 facing the base substrate. For example, in the pixel-defining layer 400, the position defining the opening 401 may be an inclined slope 402, and the opening 401 may be a region surrounded by the intersection line between the slope 402 and the second electrode, or the opening may be a region of a portion of the second electrode exposed by the pixel-defining layer 400. Taking the first-color subpixel 100 as an example, the second electrode 120 of the first-color subpixel 100 may be disposed between the pixel defining layer 400 and the base substrate 10, and the pixel defining layer 400 has an opening 401 that defines the subpixel, exposing the second electrode 120. When the first-color light-emitting layer 110 is formed in the opening 401 of the pixel defining layer 400, the top and bottom of the first-color light-emitting layer 110 and other auxiliary light-emitting functional film layers (e.g., one or more of an electron injection layer, an electron transport layer, a hole injection layer, a hole transport layer, an auxiliary light-emitting layer, an electron barrier layer, and a hole barrier layer) are in contact with the first electrode 120 and the second electrode 120, respectively. The first-color light-emitting layer 110 in the opening 401 of the pixel defining layer 400 can emit light by being driven by the first electrode 120 and the second electrode 120, and the opening 401 of the pixel defining layer 400 defines the shape of the first effective light-emitting area 101 of the first-color light-emitting layer 110.

[0145] For example, as shown in Figures 1A and 2, at least a portion of the second effective light-emitting areas 201 have a length direction and a width direction, and the length direction is the extension direction of the line connecting the two points in one second effective light-emitting area 201 that are the farthest apart (the V direction shown in Figure 1A), and the width direction of the same second effective light-emitting area 201 (the U direction shown in Figure 1A) is approximately perpendicular to the length direction. For example, for the same second effective light-emitting region 201, the ratio along the length direction between the maximum size of the second-color light-emitting layer 210 corresponding to the second effective light-emitting region 201 and the maximum size of the second effective light-emitting region 201 is a first ratio (a value obtained by dividing the maximum size of the second-color light-emitting layer 210 corresponding to the second effective light-emitting region 201 by the maximum size of the second effective light-emitting region 201), and the ratio along the width direction between the maximum size of the second-color light-emitting layer 210 corresponding to the second effective light-emitting region 201 and the maximum size of the second effective light-emitting region 201 is a second ratio (a value obtained by dividing the maximum size of the second-color light-emitting layer 210 corresponding to the second effective light-emitting region 201 by the maximum size of the second effective light-emitting region 201), where the first ratio is smaller than the second ratio. The length direction may be a third direction, and the width direction may be a fourth direction.

[0146] For example, the second effective light-emitting regions included in the second color sub-pixels all have substantially the same shape and area.

[0147] For example, the length direction and row direction of each second effective light-emitting region form an included angle. For example, the included angle between the length direction and row direction of each second effective light-emitting region may be 15° to 75°. For example, the included angle between the length direction and row direction of each second effective light-emitting region may be 30° to 60°. For example, the included angle between the length direction and row direction of each second effective light-emitting region may be 40° to 50°.

[0148] For example, as shown in FIGS. 1A and 2, the shape of the second effective light-emitting area 201 may be an elongated shape such as a hexagon, octagon, trapezoid, ellipse, or rectangle. The elongated shape of the embodiments of the present disclosure may be a regular pattern, such as a symmetrical pattern, whose extension direction is its length direction and whose direction perpendicular to the extension direction is its width direction. The elongated shape of the embodiments of the present disclosure may be an irregular pattern, whose extension direction is its length direction and whose direction perpendicular to the extension direction is its width direction. For example, the extension direction (i.e., length direction) of the elongated effective light-emitting area is the third direction (i.e., V direction), and the direction perpendicular to the third direction is the fourth direction (i.e., width direction). For example, the openings 401 in the pixel definition layer 400 corresponding to the second-color subpixels 200 may be elongated hexagonal or elliptical, and the openings 401 may have a first axis of symmetry and a second axis of symmetry, where the first axis of symmetry is a major axis, e.g., parallel to the third direction, and the second axis of symmetry is a minor axis, e.g., parallel to the fourth direction. For example, the first-color subpixels 100 and the second-color subpixels 200 are alternately arranged along the third direction.

[0149] In the embodiment of the present disclosure, the extension direction of the elongated second effective light-emitting region is defined as the third direction, and when the extension directions of different second effective light-emitting regions are different, the third direction varies depending on the extension directions of the different second effective light-emitting regions. For example, when the extension directions of two adjacent second effective light-emitting regions intersect, the third direction corresponding to the two adjacent second effective light-emitting regions also intersects. Similarly, the fourth direction also varies depending on the extension directions of the different second effective light-emitting regions.

[0150] 1A and 2 , the ratio of the maximum size of the second-color light-emitting layer 210 to the maximum size of the second effective light-emitting area 201 along the third direction is a first ratio, and the ratio of the maximum size of the second-color light-emitting layer 210 to the maximum size of the second effective light-emitting area 201 along the fourth direction is a second ratio, where the first ratio is smaller than the second ratio. In the embodiment of the present disclosure, the maximum size of the second-color light-emitting layer in a certain direction refers to the maximum size of the second-color light-emitting layer in that direction when orthogonally projected on the base substrate. For example, the ratio of the maximum sizes of the second-color light-emitting layer 210 and the second effective light-emitting area 201 along the major axis direction of the opening 401 is smaller than the ratio of the maximum sizes of the second-color light-emitting layer 210 and the second effective light-emitting area 201 along the minor axis direction of the opening 401. This avoids a large deviation between the mask opening and the pixel defining layer opening from affecting the position of the second-color light-emitting layer formed in the pixel defining layer opening, and further reduces the impact of process inaccuracies in the minor axis direction of the corresponding pixel defining layer opening on the second-color sub-pixels.

[0151] For example, for the same second effective light-emitting region 201, along the length direction of the second effective light-emitting region 201, the difference between the maximum size of the corresponding second-color light-emitting layer 210 and the maximum size of the second effective light-emitting region 201 is a first difference, and along the width direction thereof, the difference between the maximum size of the second-color light-emitting layer 210 and the maximum size of the second effective light-emitting region 201 is a second difference, and the first difference is smaller than the second difference.

[0152] For example, the first difference may be in the range of 5 to 15 microns. For example, the first difference may be in the range of 6 to 14 microns. For example, the first difference may be in the range of 7 to 12 microns. For example, the first difference may be in the range of 8 to 11 microns. For example, the second difference may be in the range of 8 to 30 microns. For example, the second difference may be in the range of 9 to 20 microns. For example, the second difference may be in the range of 10 to 18 microns.

[0153] For example, both the first and second differences are larger than the deviation of pixel position accuracy (ppa) (described later).

[0154] For example, the minimum difference in size between different positions of the light-emitting layer and the effective light-emitting region of each sub-pixel may be approximately the same, for example, 7 to 9 microns for all, or 6 to 8 microns for all.

[0155] For example, as shown in Figures 1A and 2, along the third direction, the difference between the maximum size of the second-color light-emitting layer 210 and the maximum size of the second effective light-emitting area 201 is a first difference, and along the fourth direction, the difference between the maximum size of the second-color light-emitting layer 210 and the maximum size of the second effective light-emitting area 201 is a second difference, and the first difference is smaller than the second difference, thereby reducing the impact of process accuracy in the width direction of the second effective light-emitting area on the second-color sub-pixels.

[0156] 1A and 2, in the second-color subpixel 200, the ratio of the maximum size in the third direction of the second-color light-emitting layer 210 to the maximum size in the fourth direction is smaller than the ratio of the maximum size in the third direction of the second effective light-emitting region 201 to the maximum size in the fourth direction, thereby reducing the influence of process inaccuracies in the width direction of the second effective light-emitting region on the second-color subpixel. That is, the ratio of the maximum size in the length direction of the second effective light-emitting region of the second-color light-emitting layer to the maximum size in the width direction of the second effective light-emitting region is smaller than the ratio of the maximum size in the length direction of the second effective light-emitting region to the maximum size in the width direction of the second effective light-emitting region. In some embodiments, the ratio of the maximum size in the third direction of the second-color light-emitting layer 210 to the maximum size in the fourth direction, i.e., the ratio of the size in the length direction of the second-color light-emitting layer 210 to the size in the width direction, is approximately 0.8 to 1.2, for example, 0.9 to 1.1, and may be, for example, 1. By making the lengthwise size and widthwise size of the second color light-emitting layer 210 approximately the same, the symmetry of the pattern of the second color light-emitting layer 210 is increased, so that in the FMM process, the FMM opening corresponding to the pattern of the second color light-emitting layer 210 is well deformed, and the pattern of the formed second color light-emitting layer 210 becomes more accurate.

[0157] For example, as shown in FIG. 1A , the planar shape of the second-color light-emitting layer 210 of the second-color subpixel 200 (i.e., the shape of the orthogonal projection on the base substrate) may be substantially circular, but is not limited thereto and may be an ellipse or a polygon, such as a rectangle, a pentagon, a hexagon, or an octagon. For example, FIG. 1B is a partial planar structural schematic diagram of a display panel according to another embodiment of the present disclosure. As shown in FIG. 1B , the difference between the display panel of this embodiment and the display panel shown in FIG. 1A is that the shape of the second-color light-emitting layer of the second-color subpixel may be substantially rectangular or square with rounded corners. The shape of the second-color light-emitting layer of the second-color subpixel may be triangular, rectangular, pentagonal, hexagonal, octagonal, or other shapes, and may be a pattern with an axis of symmetry, a centrosymmetric pattern, or other irregular patterns. Designing the shape based on the layout space of the display panel and the arrangement of the openings on the FMM can improve the aperture ratio, matching and alignment accuracy, or reduce deformation of the opening pattern of the FMM.

[0158] For example, taking the second-color light-emitting layer 210 of the second-color subpixel 200 as being circular in shape, the opening 401 of the pixel defining layer 400 for defining the second effective light-emitting area 201 of the second-color subpixel 200 has a major axis and a minor axis, so that after the circular second-color light-emitting layer 210 covers the opening 401 of the pixel defining layer 400, the second-color light-emitting layer 210 has a portion located outside the opening 401 of the pixel defining layer 400 in the directions of the major axis and the minor axis of the corresponding opening 401 of the pixel defining layer 400, i.e., a portion covering the surface of the pixel defining layer 400 away from the base substrate 10. In the second-color light-emitting layer 210, both the maximum size and the area of ​​the covering region of the pixel defining layer 400 that it covers in the fourth direction (i.e., the minor axis direction) are larger than the maximum size and the area of ​​the covering region of the pixel defining layer 400 that it covers in the third direction (i.e., the major axis direction). For example, taking the shape of the second-color light-emitting layer 210 of the second-color sub-pixel 200 as an ellipse or hexagon, after the second-color light-emitting layer 210 covers the opening 401 of the pixel defining layer 400, the second-color light-emitting layer 210 has a portion located outside the opening 401 of the pixel defining layer 400 in the directions of the major axis and minor axis of the corresponding opening 401 of the pixel defining layer 400, i.e., a portion covering the surface of the pixel defining layer 400 away from the base substrate 10. The maximum size and the area of ​​the covering region of the second-color light-emitting layer 210 covering the opposite side of the first group in the fourth direction (i.e., the minor axis direction) are both larger than the maximum size and the area of ​​the covering region of the pixel defining layer 400 covering the opposite side of the second group in the third direction (i.e., the major axis direction), i.e., the ratio between the major axis and the minor axis of the second-color light-emitting layer 210 is smaller than the ratio between the major axis and the minor axis of the opening 401 of the pixel second effective light-emitting area 201. The maximum size of the second color light emitting layer 210 in the third direction is the length in its major axis direction, and the maximum size of the second color light emitting layer 210 in the fourth direction is the length in its minor axis direction.

[0159] For example, Fig. 3 is a partial cross-sectional structural schematic diagram taken along line BB in Fig. 1A. As shown in Figs. 1A and 3, the display panel includes a plurality of third-color subpixels 300 located in a display region 11 on a base substrate 10. The plurality of first-color subpixels 100 and the plurality of third-color subpixels 300 are alternately arranged along the first and second directions, and the plurality of third-color subpixels 300 and the plurality of second-color subpixels 200 are alternately arranged along the minor axis direction of the second-color subpixels 200. Thus, in the pixel arrangement structure used in the embodiments of the present disclosure, the second-color subpixels are arranged in an array of rows and columns, the first-color subpixels and the third-color subpixels are alternately arranged in rows and columns, the second-color subpixel rows and the first-color subpixel rows are alternately arranged in the column direction, and the second-color subpixel columns and the first-color subpixel columns are alternately arranged in the row direction. Each second-color subpixel is surrounded by two first-color subpixels and two third-color subpixels. For the same second-color subpixel, two first-color subpixels are located on either side of the second-color subpixel in the third direction, and two third-color subpixels are located on either side of the second-color subpixel in the fourth direction, or two first-color subpixels are located on either side of the second-color subpixel in the fourth direction, and two third-color subpixels are located on either side of the second-color subpixel in the third direction. The third direction is, for example, rotated counterclockwise at an acute angle, such as 45°, from the first direction (e.g., the row direction), and the fourth direction is, for example, rotated clockwise at an acute angle, such as 45°, from the first direction. The third direction and the fourth direction are interchangeable. The third direction and the fourth direction intersect with both the first direction and the second direction.

[0160] For example, a plurality of first-color subpixels and a plurality of second-color subpixels are alternately arranged along the third direction to form a first group, a plurality of third-color subpixels and a plurality of second-color subpixels are alternately arranged along the third direction to form a second group, and the first and second groups are alternately distributed along the fourth direction. The second-color subpixels of the second group and the first-color subpixels of the first group are arranged to overlap in the fourth direction, and the second-color subpixels of the first group and the third-color subpixels of the second group are alternately arranged in the fourth direction. The U direction corresponds to each second-color subpixel, and in some second-color subpixels, the U direction is the fourth direction, and in some second-color subpixels, the U direction is the third direction.

[0161] In some embodiments, the first color subpixel, the second color subpixel, and the third color subpixel may have the same color, for example, the first color subpixel and the second color subpixel have the same emission color (e.g., specifically, the same light-emitting layer material or the same light-emitting device structure). In some embodiments, for example, the first color subpixel and the third color subpixel have the same emission color. For example, a fourth color subpixel may be further included, and the emission color of the fourth color subpixel may be different from all of the emission colors of the first color subpixel, the second color subpixel, and the third color subpixel, or the emission color of the fourth color subpixel may be the same as the emission color of one of the first color subpixel, the second color subpixel, and the third color subpixel.

[0162] In the above embodiments, the emission color, size, shape, and position of each subpixel can be arbitrarily combined. For example, the subpixels may be partially the same and partially different in size and shape, or may be completely the same or completely different. For example, some subpixels may be the same size but have different shapes. For example, some subpixels may have approximately the same shape and outline but different areas. For example, a first-color subpixel may be surrounded by a variable number of second-color subpixels, e.g., two, three, four, five, six, seven, eight, etc., and these second-color subpixels may be approximately the same distance from the first-color subpixels, partially the same, but partially different. For example, a second-color subpixel may be surrounded by a variable number of third-color subpixels, e.g., two, three, four, five, six, seven, eight, etc., and these first-color subpixels may be approximately the same distance from the second-color subpixels, partially the same, but partially different. For example, a third color subpixel may have a varying number of second color subpixels around it, e.g., two, three, four, five, six, seven, eight, etc., and these second color subpixels may be approximately the same distance from the third color subpixel, or some may be the same but others may be different.

[0163] For example, as shown in Figures 1A and 2, the multiple third color subpixels 300 have multiple third effective light-emitting areas 301, the area of ​​one second effective light-emitting area 201 is smaller than the area of ​​one third effective light-emitting area 301, the multiple third color subpixels 30 have multiple third color light-emitting layers 310 located in corresponding openings 401 and on the pixel definition layer 400 surrounding the corresponding openings 401, the multiple third color light-emitting layers 310 included in the multiple third color subpixels 300 are spaced apart from each other, and the area ratio of the third color light-emitting layers 310 and the third effective light-emitting areas 301 corresponding to the same third color subpixel 300 when projected orthogonally on the base substrate is a third area ratio, which is smaller than the second area ratio.

[0164] For example, the third area ratio is greater than 1. For example, the range of the third area ratio may be 1 to 10. For example, the range of the third area ratio may be 2 to 8. For example, the range of the third area ratio may be 3 to 7. For example, the range of the first area ratio may be about 3 to 5. For example, the range of the third area ratio may be 3 to 5. For example, the range of the second area ratio is about 5 to 7. For example, the range of the first area ratio is about 4 to 5. For example, the range of the second area ratio is about 6 to 7. For example, the range of the third area ratio is about 3 to 4. For example, the range of the third area ratio is 1.5 to 7. For example, the range of the third area ratio is 2 to 3. For example, the range of the third area ratio is 3 to 4.

[0165] For example, the first color subpixel 100 is a red subpixel, the second color subpixel 200 is a green subpixel, and the third color subpixel 300 is a blue subpixel.

[0166] For example, the luminous efficiency of the sub-pixels of the third color is less than the luminous efficiency of the sub-pixels of the second color.

[0167] For example, the luminous efficiency of the sub-pixels of the third color is less than the luminous efficiency of the sub-pixels of the first color.

[0168] For example, the ratio of the luminous efficiency of the third color subpixel to the luminous efficiency of the second color subpixel is 0.3:1. For example, the ratio of the luminous efficiency of the third color subpixel to the luminous efficiency of the second color subpixel is 0.4:1. For example, the ratio of the luminous efficiency of the third color subpixel to the luminous efficiency of the second color subpixel is 0.5:1. For example, the ratio of the luminous efficiency of the third color subpixel to the luminous efficiency of the second color subpixel is 0.6:1. For example, the ratio of the luminous efficiency of the third color subpixel to the luminous efficiency of the second color subpixel is 0.7:1. For example, the ratio of the luminous efficiency of the third color subpixel to the luminous efficiency of the second color subpixel is 0.8:1. For example, the ratio of the luminous efficiency of the third color subpixel to the luminous efficiency of the second color subpixel is 0.9:1.

[0169] For example, the ratio of the luminous efficiency of the third color subpixel to the luminous efficiency of the first color subpixel is 0.5 to 1. For example, the ratio of the luminous efficiency of the third color subpixel to the luminous efficiency of the first color subpixel is 0.6 to 1. For example, the ratio of the luminous efficiency of the third color subpixel to the luminous efficiency of the first color subpixel is 0.7 to 1. For example, the ratio of the luminous efficiency of the third color subpixel to the luminous efficiency of the first color subpixel is 0.8 to 1. For example, the ratio of the luminous efficiency of the third color subpixel to the luminous efficiency of the first color subpixel is 0.9 to 1.

[0170] For example, the third area ratio corresponding to the subpixels of the third color is smaller than the second area ratio corresponding to the subpixels of the second color.

[0171] For example, the third area ratio corresponding to the subpixels of the third color is smaller than the first area ratio corresponding to the subpixels of the first color.

[0172] For example, the luminous efficiency of a subpixel refers to the intensity of light emitted from the light-emitting device of the subpixel under the same electrical signal conditions, and the greater the light intensity, the greater the luminous efficiency. For example, the same electrical signal conditions refer to the same voltage written to the data line. For example, the same electrical signal conditions refer to the same write current to the light-emitting device. For example, the luminous efficiency of a subpixel refers to the density of the current flowing through the light-emitting device under the same electrical signal conditions.

[0173] For example, the aperture ratio of the sub-pixels of the third color is greater than the aperture ratio of the sub-pixels of the second color.

[0174] For example, the aperture ratio of the sub-pixels of the third color is greater than the aperture ratio of the sub-pixels of the first color.

[0175] For example, the aperture ratio of the sub-pixel of the third color is the ratio of the area of ​​the sub-pixel of the third color that is actually used for emitting light to the area of ​​the display region.

[0176] For example, the ratio of the aperture ratio of the first color subpixel to the aperture ratio of the third color subpixel is approximately 1: (1.1 to 1.9). For example, the ratio of the aperture ratio of the first color subpixel to the aperture ratio of the third color subpixel is approximately 1: (1.2 to 1.8). For example, the ratio of the aperture ratio of the first color subpixel to the aperture ratio of the third color subpixel is approximately 1: (1.3 to 1.7). For example, the ratio of the aperture ratio of the first color subpixel to the aperture ratio of the third color subpixel is approximately 1: (1.4 to 1.6). For example, the ratio of the aperture ratio of the first color subpixel to the aperture ratio of the third color subpixel is approximately 1: (1.2 to 1.5).

[0177] For example, the ratio of the aperture ratio of the second color subpixel to the aperture ratio of the third color subpixel is approximately 1:(1.1 to 1.9). For example, the ratio of the aperture ratio of the second color subpixel to the aperture ratio of the third color subpixel is approximately 1:(1.2 to 1.8). For example, the ratio of the aperture ratio of the second color subpixel to the aperture ratio of the third color subpixel is approximately 1:(1.3 to 1.7). For example, the ratio of the aperture ratio of the second color subpixel to the aperture ratio of the third color subpixel is approximately 1:(1.4 to 1.6). For example, the ratio of the aperture ratio of the second color subpixel to the aperture ratio of the third color subpixel is approximately 1:(1.2 to 1.5).

[0178] For example, the number of sub-pixels of the second color in the display area is greater than the number of sub-pixels of the first color.

[0179] For example, the ratio of the number of sub-pixels of the second color to the number of sub-pixels of the first color in the display area is about two.

[0180] For example, the ratio of the aperture ratio of the subpixels of the first color to the subpixels of the second color is 0.5 to 1.6. For example, the ratio of the aperture ratio of the subpixels of the first color to the subpixels of the second color is 0.5 to 1. For example, the ratio of the aperture ratio of the subpixels of the first color to the subpixels of the second color is 0.6 to 1. For example, the ratio of the aperture ratio of the subpixels of the first color to the subpixels of the second color is 0.7 to 1. For example, the ratio of the aperture ratio of the subpixels of the first color to the subpixels of the second color is 0.8 to 1. For example, the ratio of the aperture ratio of the subpixels of the first color to the subpixels of the second color is 0.9 to 1. For example, the ratio of the aperture ratio of the subpixels of the first color to the subpixels of the second color is 1 to 1.1. For example, the ratio of the aperture ratio of the subpixels of the first color to the subpixels of the second color is 1 to 1.2. For example, the ratio of the aperture ratio of the first color subpixel to the aperture ratio of the second color subpixel is 1 to 1.3. For example, the ratio of the aperture ratio of the first color subpixel to the aperture ratio of the second color subpixel is 1 to 1.4. For example, the ratio of the aperture ratio of the first color subpixel to the aperture ratio of the second color subpixel is 1 to 1.5.

[0181] 1A and 3 , a third color subpixel 300 includes a third effective light-emitting area 301, and the area of ​​the second effective light-emitting area 201 is smaller than the area of ​​the third effective light-emitting area 301. Each third color subpixel 300 includes a third color light-emitting layer 310 located in an opening 401 of a pixel defining layer 400 and on the pixel defining layer 400, and the multiple third color light-emitting layers 310 included in the multiple third color subpixels 300 are spaced apart from each other. The area ratio between the orthogonal projection of the third color light-emitting layer 310 of each third color subpixel 300 on the base substrate 10 and the orthogonal projection of the third effective light-emitting area 301 on the base substrate 10 is smaller than the area ratio between the orthogonal projection of the second color light-emitting layer 210 of each second color subpixel 200 on the base substrate 10 and the orthogonal projection of the second effective light-emitting area 201 on the base substrate 10. In the embodiments of the present disclosure, the area ratio of the second-color light-emitting layer to the second effective light-emitting area of ​​the second-color subpixel is set to be larger than the area ratio of the third-color light-emitting layer to the third effective light-emitting area of ​​the third-color subpixel, thereby setting a larger accuracy margin for the deposition process of the second-color subpixel, whose single effective light-emitting area is relatively small, thereby making the quality of the second-color light-emitting layer formed in the second effective light-emitting area more stable and thereby reducing the impact of deviations or fluctuations due to the deposition process on the display quality of each subpixel.

[0182] In some embodiments, the areas of the first effective light-emitting area of ​​the first color subpixel, the second effective light-emitting area of ​​the second color subpixel, and the third effective light-emitting area of ​​the third color subpixel do not satisfy the conditions of the above embodiments (for example, the area of ​​the second effective light-emitting area 201 is greater than or equal to the area of ​​the third effective light-emitting area 301, for example, the area of ​​the second effective light-emitting area 201 is greater than or equal to the area of ​​the first effective light-emitting area 101), but due to relatively high requirements for process precision for a certain color or due to some properties of the light-emitting layer material of that color (for example, diffusivity, volatility, viscosity, etc.), the area ratio of the light-emitting layer to the effective light-emitting area corresponding to the subpixel of that color may be set larger or smaller than the area ratios corresponding to the subpixels of other colors. In some embodiments, the area ratio of the light-emitting layer to the effective light-emitting area corresponding to a different subpixel may be larger or smaller than the area ratios corresponding to other subpixels depending on different application scenarios, display conditions, or display areas, without necessarily satisfying the above-mentioned relationship between the size of the corresponding effective light-emitting area, the relationship between the light-emitting efficiency, or the relationship between the aperture ratio. That is, the relationship between the size of the effective light-emitting area, the relationship between the light-emitting efficiency, or the relationship between the aperture ratio are not necessary conditions for the area ratio between the light-emitting layer and the effective light-emitting area. Factors that affect the area ratio between the light-emitting layer and the effective light-emitting area include the process, materials, specific application, and form. For example, as shown in FIGS. 1A to 3 , the area of ​​the first effective light-emitting area 101 of each first-color subpixel 100 is smaller than the area of ​​the third effective light-emitting area 301 of each third-color subpixel 300. Considering the different service life and light-emitting efficiency of the light-emitting materials in the light-emitting layers of the various color subpixels, the area of ​​the effective light-emitting area of ​​each red subpixel is set to be smaller than the area of ​​the effective light-emitting area of ​​each blue subpixel.

[0183] For example, the area ratio between the orthogonal projection of the first-color light-emitting layer 110 of each first-color subpixel 100 on the base substrate 10 and the orthogonal projection of the first effective light-emitting area 101 of each first-color subpixel 100 on the base substrate 10 is larger than the area ratio between the orthogonal projection of the third-color light-emitting layer 310 of each third-color subpixel 300 on the base substrate 10 and the orthogonal projection of the third effective light-emitting area 301 of each third-color subpixel 300 on the base substrate 10. In the embodiment of the present disclosure, the area ratio between the first-color light-emitting layer and the first effective light-emitting area of ​​each first-color subpixel is set to be larger than the area ratio between the third-color light-emitting layer and the third effective light-emitting area of ​​each third-color subpixel. This sets a larger accuracy margin for the deposition process of the second-color subpixel, which has a relatively small single effective light-emitting area, thereby improving the stability of the quality of the second-color light-emitting layer formed in the second effective light-emitting area and thereby reducing the impact of deviations or fluctuations due to the deposition process on the display quality of each subpixel. In other words, the area ratio of the overlapping portion of the first-color light-emitting layer of one first-color subpixel with the light-emitting layer of the other subpixels to the orthogonal projection on the base substrate of this one first-color light-emitting layer, and the area ratio of the overlapping portion of the third-color light-emitting layer of one third-color subpixel with the light-emitting layer of the other subpixels to the orthogonal projection on the base substrate of this one third-color light-emitting layer, are both smaller than the area ratio of the overlapping portion of the second-color light-emitting layer of one second-color subpixel with the light-emitting layer of the other subpixels to the orthogonal projection on the base substrate of this one second-color light-emitting layer.

[0184] For example, as shown in FIGS. 1A and 1C , in the embodiments of the present disclosure, the openings 401 for defining the effective light-emitting areas of the first color subpixel 100 and the third color subpixel 300 are both square or octagonal in shape, i.e., the first effective light-emitting area 101 and the third effective light-emitting area 301 are both square in shape, the openings of the mask for forming the light-emitting layers of the first color subpixel 100 and the third color subpixel 300 are also square or octagonal in shape, i.e., the first color light-emitting layer 110 and the third color light-emitting layer 310 have planar shapes that are both approximately square, the openings 401 for forming the second effective light-emitting area 201 of the second color subpixel 200 are elliptical in shape, and the openings of the mask for forming the second color light-emitting layer 210 are circular in shape.

[0185] For example, the first-color light-emitting layer 110 to be formed may be substantially square or diamond-shaped, with the corresponding mask opening having a side length of 33 microns, and the opening 401 for defining the first effective light-emitting region 101 may be substantially square or diamond-shaped with a side length of 15.2 microns. For example, the second-color light-emitting layer 210 to be formed may be substantially circular or octagonal, with the corresponding mask opening having a diameter of 33 microns, and the opening 401 for defining the second effective light-emitting region 201 may be any one of substantially oval, olive, hexagonal, octagonal, and rectangular, with the major axis being 14 microns and the minor axis being 12 microns. For example, the diameter of an octagon may be the size in a direction passing through its geometric center and perpendicular to the opposite side. For example, the third-color light-emitting layer 310 to be formed may be approximately square or diamond-shaped, with the diagonal length of the corresponding mask opening being 50 microns, and the opening 401 defining the third effective light-emitting region 301 may be approximately square or diamond-shaped with a side length of 18.3 microns. For example, the major axis of a hexagon, octagon, or rectangle is its length direction, and the minor axis is its width direction, and the sizes of the major and minor axes are both the maximum size in the direction perpendicular to the major axis direction. For example, each of the above polygonal patterns may be a pattern with rounded corners.

[0186] For example, the area of ​​the first-color light-emitting layer 110 of the first-color subpixel 100 when orthogonally projected on the base substrate 10 (area of ​​the planar shape) may be 900 to 1200 square microns, for example 1000 to 1100 square microns, the area of ​​the first effective light-emitting region 101 may be 150 to 300 square microns, for example 220 to 240 square microns, and the ratio of the two may be 3 to 6, for example 4 to 5. For example, the area of ​​the second-color light-emitting layer 210 of the second-color subpixel 200 may be 700 to 1000 square microns, for example 800 to 900 square microns, the area of ​​the second effective light-emitting region 201 may be 100 to 200 square microns, for example 100 to 150 square microns, and the ratio of the two may be 5 to 8, for example 6 to 7. For example, the planar area of ​​the third-color light-emitting layer 310 of the third-color subpixel 300 may be 1000 to 1500, e.g., 1200 to 1300 square microns, the area of ​​the third effective light-emitting area 301 may be 200 to 500, e.g., 300 to 400 square microns, and the ratio between the two may be 2 to 6, e.g., 3 to 4. As can be seen from the above data, the ratio of the planar area of ​​the second-color light-emitting layer of the second-color subpixel to the area of ​​the second effective light-emitting area is greater than the ratio of the planar area of ​​the first-color light-emitting layer of the first-color subpixel to the area of ​​the first effective light-emitting area, and the ratio of the planar area of ​​the first-color light-emitting layer of the first-color subpixel to the area of ​​the first effective light-emitting area is greater than the ratio of the planar area of ​​the third-color light-emitting layer of the third-color subpixel to the area of ​​the third effective light-emitting area.

[0187] 1A to 3, adjacent first-color light-emitting layers 110 and second-color light-emitting layers 210 arranged along the third direction overlap, and adjacent second-color light-emitting layers 210 and third-color light-emitting layers 310 arranged along the fourth direction overlap. That is, the boundary of the second-color light-emitting layer 210 slightly overlaps the boundary of the first-color light-emitting layer 110, and the boundary of the second-color light-emitting layer 210 may also slightly overlap the boundary of the third-color light-emitting layer 310, thereby improving the resolution and process accuracy of the display panel. In the embodiments of the present disclosure, "overlapping" refers to the overlapping of two elements along a direction perpendicular to the base substrate, i.e., the orthogonal projections of the two elements on the base substrate have an overlapping portion.

[0188] For example, the order of forming the light-emitting layers of each subpixel may be a first-color light-emitting layer, a second-color light-emitting layer, and a third-color light-emitting layer, or a third-color light-emitting layer, a first-color light-emitting layer, and a second-color light-emitting layer. For example, assuming that the first-color light-emitting layer, the second-color light-emitting layer, and the third-color light-emitting layer are formed in this order, the boundary of the third-color light-emitting layer covers the boundary of the second-color light-emitting layer, and the boundary of the second-color light-emitting layer covers the boundary of the first-color light-emitting layer. For example, if the first-color light-emitting layer and the third-color light-emitting layer are both rectangular in planar shape, the light-emitting layers at opposite corners of the first-color light-emitting layer and the third-color light-emitting layer may or may not overlap. If the second-color light-emitting layer is circular or elliptical in planar shape, the second-color light-emitting layer may not overlap the first-color light-emitting layer at a position close to a corner of the first-color light-emitting layer, and the second-color light-emitting layer may not overlap the third-color light-emitting layer at a position close to a corner of the third-color light-emitting layer.

[0189] For example, as shown in Figures 1A to 3, the area ratio of the overlapping portion of the first-color light-emitting layer 110 of one first-color subpixel 100 with the light-emitting layers of the other subpixels to the orthogonal projection of this one first-color light-emitting layer 110 on the base substrate 10, and the area ratio of the overlapping portion of the third-color light-emitting layer 310 of one third-color subpixel 300 with the light-emitting layers of the other subpixels to the orthogonal projection of this one third-color light-emitting layer 310 on the base substrate 10 are all smaller than the area ratio of the overlapping portion of the second-color light-emitting layer 210 of one second-color subpixel 200 with the light-emitting layers of the other subpixels to the orthogonal projection of this one second-color light-emitting layer 210 on the base substrate 10.

[0190] For example, the second-color light-emitting layer 210 of the second-color subpixel 200 overlaps with the subpixels of the other colors in both the third and fourth directions. For example, the boundary of the second-color light-emitting layer 210 overlaps with the boundary of the adjacent first-color light-emitting layer 110 along the length of its effective light-emitting area, and the boundary of the second-color light-emitting layer 210 overlaps with the boundary of the adjacent third-color light-emitting layer 310 along the width of its effective light-emitting area.

[0191] 1A to 3, adjacent first-color light-emitting layers 110 and third-color light-emitting layers 310 do not overlap, i.e., the boundary of a first-color light-emitting layer 110 does not overlap the boundary of an adjacent third-color light-emitting layer 310. The term "adjacent" above means that there is no other first-color light-emitting layer or third-color light-emitting layer between the first-color light-emitting layer and the third-color light-emitting layer, and also means that the first-color light-emitting layer and the third-color light-emitting layer are adjacent along at least one of the first, second, third, and fourth directions.

[0192] For example, the overlapping area between adjacent first-color light-emitting layers 110 and third-color light-emitting layers 310 is smaller than the overlapping area between adjacent first-color light-emitting layers 110 and second-color light-emitting layers 210, and the overlapping area between adjacent first-color light-emitting layers 110 and third-color light-emitting layers 310 is smaller than the overlapping area between adjacent third-color light-emitting layers 310 and second-color light-emitting layers 210.

[0193] For example, the maximum size of the overlapping portion in the first direction between the boundary between adjacent first-color light-emitting layers 110 and the boundary between adjacent third-color light-emitting layers 310 and the maximum size of the overlapping portion in the second direction between the boundary between adjacent first-color light-emitting layers 110 and the boundary between adjacent third-color light-emitting layers 310 are both smaller than the maximum size of the overlapping portion in the third direction between the boundary between adjacent first-color light-emitting layers 110 and the boundary between adjacent second-color light-emitting layers 210 and the boundary between adjacent second-color light-emitting layers 210 and the third-color light-emitting layers 310. In the embodiment of the present disclosure, since the area of ​​the orthogonal projection of the second-color light-emitting layer on the base substrate is smallest, setting the overlapping area between the second-color light-emitting layer and the light-emitting layers of the other colors relatively large can improve the process accuracy of the second-color subpixels.

[0194] For example, the deviation of the distance between the center of the light-emitting layer of each subpixel and the center of the corresponding effective light-emitting area, i.e., the pixel position accuracy (ppa), is less than 6 microns. For example, the ppa deviation may be ±3 microns. For example, when a display panel according to an embodiment of the present disclosure is applied to an automotive product, the ppa deviation of each subpixel may be ±5 to ±6 microns. For example, when a display panel according to an embodiment of the present disclosure is applied to a display device with high PPI characteristics, the ppa deviation of each subpixel may be ±1.5 microns.

[0195] For example, if the area of ​​the second color light-emitting layer of the second color subpixel is smallest, its ppa deviation percentage for the light-emitting layer is greatest.

[0196] The above-mentioned ppa deviation can reflect the alignment accuracy between the fine metal mask and the display panel, and is expressed as the alignment accuracy between the opening of the mask and the opening of the pixel defining layer of the corresponding subpixel. When the opening of the mask is used to form an emissive layer, the distance between the center of the emissive layer and the center of the opening of the corresponding pixel defining layer is one of the factors reflected by the alignment accuracy between the FMM (fine metal mask) and the display panel.

[0197] 1A to 3, the width in the third or fourth direction of the flat surface 403 of the pixel definition layer 400 between adjacent first and second effective light-emitting regions 101 and 201, the flat surface 403 being away from the base substrate 10, is approximately the same as the width in the fourth or third direction of the flat surface 403 of the pixel definition layer 400 between adjacent second and third effective light-emitting regions 201 and 301. That is, the pixel definition layer gaps (PDL gaps) between subpixels of different colors are approximately the same. For example, the distance in the third or fourth direction between adjacent first and second effective light-emitting regions is approximately the same as the distance in the fourth or third direction between adjacent second and third effective light-emitting regions. For example, the distance between adjacent first and second effective light-emitting regions in the length direction of the second effective light-emitting region is approximately the same as the distance between adjacent second and third effective light-emitting regions in the width direction of the second effective light-emitting region.

[0198] For example, the width range in the third direction of the pixel definition layer between adjacent first and second effective light-emitting regions is 15 to 25 microns, and the portion of the surface of the pixel definition layer between adjacent first and second effective light-emitting regions facing away from the base substrate along the third direction, which is covered with the light-emitting layer of the first color, is 0.3 to 0.8 times the width of the pixel definition layer. For example, the portion of the surface of the pixel definition layer between adjacent first and second effective light-emitting regions facing away from the base substrate, which is covered with the light-emitting layer of the second color, is 0.3 to 0.8 times the width of the pixel definition layer. For example, the width range in the third direction of the pixel definition layer between adjacent third and second effective light-emitting regions is 15 to 25 microns. For example, the portion of the surface of the pixel definition layer between adjacent third and second effective light-emitting regions facing away from the base substrate along the third direction, which is covered with the light-emitting layer of the third color, is 0.3 to 0.8 times the width of the pixel definition layer. For example, the portion of the surface of the pixel definition layer between the adjacent third and second effective light-emitting regions that faces away from the base substrate and that is covered with the second color light-emitting layer is 0.3 to 0.8 times the width of the pixel definition layer.

[0199] For example, pixel definition layer 400 between adjacent first and second effective light-emitting regions 101 and 201 may have a width in the length direction of second effective light-emitting region 201 in the range of 15 to 25 microns, i.e., the size of the PDL gap is approximately 15 to 25 microns. For example, the size of the PDL gap is approximately 16 to 18 microns. For example, if the pixel definition layer has a sloped portion at the position where the opening is formed, the width of flat surface 403 of pixel definition layer 400 is smaller than the size of the PDL gap.

[0200] For example, the width of the light-emitting layer of each sub-pixel that covers the flat surface 403 of the pixel defining layer 400 is 0.3 to 0.8 times the width of the pixel defining layer 400. For example, the width of the light-emitting layer of each sub-pixel that covers the flat surface 403 of the pixel defining layer 400 is 0.4 to 0.6 times the width of the flat surface 403.

[0201] For example, in a plane parallel to the base substrate along the length direction (e.g., the third direction) of the second effective light-emitting region, of the surface of the pixel definition layer between adjacent first and second effective light-emitting regions facing away from the base substrate, the portion covered with the light-emitting layer of the first color is 0.3 to 0.8 times the width of the pixel definition layer. For example, in a plane parallel to the base substrate along the length direction (e.g., the third direction) of the second effective light-emitting region, of the surface of the pixel definition layer between adjacent first and second effective light-emitting regions facing away from the base substrate, the portion covered with the light-emitting layer of the second color is 0.3 to 0.8 times the width of the pixel definition layer.

[0202] For example, the width of the pixel definition layer at each position may be a size along a direction that is approximately perpendicular to the center line of the pixel definition layer at that position and in a direction that passes through the center of the adjacent effective light-emitting area. For example, within the display area, the pixel definition layer is mesh-shaped, and the center line of the pixel definition layer at each position (center line CL shown in FIG. 17B) may be the center line in the extension direction of each pixel definition layer segment that makes up the mesh, the center line being parallel to the extension direction of the pixel definition layer segment, and the center line can divide the pixel definition layer segment into two parts with approximately the same area.

[0203] In order to densely arrange the subpixels of each color and to maintain the same level of process precision in manufacturing each subpixel, each light-emitting layer covers not only the corresponding opening in the pixel definition layer but also the flat surface between adjacent openings by approximately half the width of the opening.

[0204] For example, the length direction of the second-color subpixel 200 is the third direction, and the width direction thereof is the fourth direction; the first-color light-emitting layer 110 covers the pixel defining layer 400 between the adjacent first-color subpixel 100 and second-color subpixel 200; the width in the third direction of the portion of the first-color light-emitting layer 110 that covers the flat surface 403 of the pixel defining layer 400 is 0.3 to 0.8 times the width of the pixel defining layer 400 in the third direction (or the fourth direction); and the second-color light-emitting layer 210 covers the pixel defining layer 400 between the adjacent first-color subpixel 100 and second-color subpixel 200; the width in the third direction of the portion of the second-color light-emitting layer 210 that covers the flat surface 403 of the pixel defining layer 400 is 0.3 to 0.8 times the width of the pixel defining layer 400 in the third direction.

[0205] For example, the length direction of the second-color subpixels 200 is the third direction, and the width direction thereof is the fourth direction. The third-color light-emitting layers 310 cover the pixel defining layers 400 between the adjacent third-color subpixels 300 and second-color subpixels 200, and the width in the fourth direction of the portions of the third-color light-emitting layers 310 that cover the flat surfaces 403 of the pixel defining layers 400 is 0.3 to 0.8 times the width of the pixel defining layers 400 in the fourth direction. The second-color light-emitting layers 210 cover the pixel defining layers 400 between the adjacent third-color subpixels 300 and second-color subpixels 200, and the width in the fourth direction of the portions of the second-color light-emitting layers 210 that cover the flat surfaces 403 of the pixel defining layers 400 is 0.3 to 0.8 times the width of the pixel defining layers 400 in the fourth direction.

[0206] For example, as shown in FIGS. 2 and 3, the edge region of each light-emitting layer includes a ring region a, which extends from the outer edge toward the center by a certain width. During the manufacturing process of the light-emitting layer of each color subpixel, the light-emitting layer of each color may diffuse unevenly toward the periphery or inward due to process reasons, forming a shadow region. For example, the ring region includes the shadow region. The ring region is located at the edge region of the light-emitting layer, and its width a may be 1 to 4 microns, for example, 3 to 4 microns, or for example, 1 to 3 microns. For example, the average thickness of the light-emitting layer in the ring region is smaller than the average thickness of the light-emitting layer in the effective light-emitting region. For example, all of the light-emitting layers in the ring region are located outside the openings of the pixel defining layer, for example, on the pixel defining layer. For example, the ring region of each light-emitting layer overlaps with the center line of the corresponding pixel defining layer in the extension direction. For example, the average thickness of the light-emitting layer in the ring region is 90% or less of the average thickness of the light-emitting layer in the openings of the pixel defining layer. For example, the average thickness of the light-emitting layer in the ring region is 95% or less of the average thickness of the light-emitting layer in the openings of the pixel defining layer. For example, the average thickness of the light-emitting layer in the ring region is 80% or less of the average thickness of the light-emitting layer in the opening of the pixel defining layer.

[0207] For example, taking the first-color light-emitting layer 110 as an example, the edge regions of the first-color light-emitting layer 110 that are close to the adjacent second-color light-emitting layer 210 and the adjacent third-color light-emitting layer 310 may both be ring regions, and the width in the third direction of the ring region of the first-color light-emitting layer 110 that is close to the second-color light-emitting layer 210 of the first-color light-emitting layers 110 that are adjacent to each other along the first direction is a, and the width in the second direction of the ring region of the first-color light-emitting layers 110 that are close to the third-color light-emitting layer 310 of the first-color light-emitting layers 110 that are adjacent to each other along the second direction is a.

[0208] For example, the ring regions of adjacent different color light-emitting layer patterns overlap. For example, the ring region of the red light-emitting layer overlaps with the ring region of the green light-emitting layer. For example, the ring region of the green light-emitting layer overlaps with the ring region of the blue light-emitting layer. For example, the ring region of the red light-emitting layer overlaps with the ring region of the blue light-emitting layer. For example, the ring regions of the red, green, and blue light-emitting layers all overlap in at least some regions.

[0209] For example, the spacing between light-emitting layers of the same color is 10 microns or more. For example, the spacing between light-emitting layers of the same color is 12 microns or more. For example, the minimum spacing between light-emitting layers of green subpixels is 11 microns or more. For example, the minimum spacing between light-emitting layers of red subpixels is larger than the minimum spacing between light-emitting layers of green subpixels. For example, the minimum spacing between light-emitting layers of red subpixels is 15 microns or more. For example, the minimum spacing between light-emitting layers of red subpixels is 20 microns or more. For example, the minimum spacing between light-emitting layers of blue subpixels is larger than the minimum spacing between light-emitting layers of green subpixels. For example, the minimum spacing between light-emitting layers of blue subpixels is 14 microns or more. For example, the minimum spacing between light-emitting layers of blue subpixels is 18 microns or more.

[0210] For example, if the width of the pixel defining layer between adjacent subpixels is a', i.e., the width of the PDL gap is a', and the width of the overlapping portion of adjacent light-emitting layers is o, then o≧a and <(0.5*a')-a. For example, if the size in the third direction of the overlapping portion between adjacent first-color light-emitting layers and second-color light-emitting layers is o1, then o1≧a and <(0.5*a')-a. If the size in the fourth direction of the pixel defining layer between adjacent third-color light-emitting layers and second-color light-emitting layers is a', and the size in the fourth direction of the overlapping portion between adjacent third-color light-emitting layers and second-color light-emitting layers is o2, then o2≧a and <(0.5*a')-a.

[0211] For example, as shown in Figures 1A to 3, of the portion of each light-emitting layer located on flat surface 403 of pixel definition layer 400, the area that does not overlap with the light-emitting layers of other sub-pixels is larger than the area that overlaps with the light-emitting layers of other sub-pixels.

[0212] For example, along the third direction, among the portions of the first-color light-emitting layer 110 located on the flat surface 403, the size of the portion overlapping with the second-color light-emitting layer 210 is smaller than the size of the portion not overlapping with the second-color light-emitting layer 210, and along the third direction, among the portions of the second-color light-emitting layer 210 located on the flat surface 403, the size of the portion overlapping with the first-color light-emitting layer 110 is smaller than the size of the portion not overlapping with the first-color light-emitting layer 110.

[0213] For example, along the fourth direction, among the portions of the third-color light-emitting layer 310 located on the flat surface 403, the size of the portion overlapping with the second-color light-emitting layer 210 is smaller than the size of the portion not overlapping with the second-color light-emitting layer 210, and along the fourth direction, among the portions of the second-color light-emitting layer 210 located on the flat surface 403, the size of the portion overlapping with the third-color light-emitting layer 310 is smaller than the size of the portion not overlapping with the third-color light-emitting layer 310.

[0214] For example, as shown in FIG. 2, the width of the portion of the light-emitting layer located on the pixel defining layer on one side of the PDL gap centerline that does not overlap with the adjacent light-emitting layer is greater than the width of the portion that overlaps with the adjacent light-emitting layer.

[0215] 2 and 3 , the first color subpixel 100 further includes a second electrode 120 located between the first color light-emitting layer 110 and the base substrate, the second color subpixel 200 further includes a second electrode 220 located between the second color light-emitting layer 210 and the base substrate, and the third color subpixel 300 further includes a second electrode 320 located between the third color light-emitting layer 310 and the base substrate. The second electrode of each subpixel has an overlapping area with the pixel defining layer 400 along a direction perpendicular to the base substrate, but the size of the overlapping area is smaller than the size of the overlapping portion between the light-emitting layer of the corresponding subpixel and the pixel defining layer 400, and also smaller than the size of the overlapping portion between the light-emitting layer of the corresponding subpixel and the light-emitting layer of an adjacent subpixel.

[0216] For example, the second electrode in each subpixel comprises a body electrode (see FIG. 13A), and the size of the overlap between the body electrode and the pixel defining layer in the direction from the center to the edge of the effective light-emitting area is less than or equal to the size of the overlap between the light-emitting layer and the pixel defining layer. For example, in each subpixel, the shape of the body electrode is approximately the same as or an approximate pattern to the shape of the effective light-emitting area. Referring to FIG. 13A, in the first-color subpixel, the shape of the body electrode 121 is approximately the same as the shape of the first effective light-emitting area 101, for example, both are approximately square.

[0217] For example, in a display panel, the aperture ratio of the entire first-color subpixels 100 may be 4% to 5.5%, for example, 4% to 5%, for example, 4.81%. For example, the aperture ratio of the entire second-color subpixels 200 may be 4% to 7%, for example, 5% to 6%, for example, 5.49%. For example, the aperture ratio of the entire third-color subpixels 300 may be 5% to 8%, for example, 6% to 7%, for example, 6.97%. For example, the PDL gap may be 18 to 25 microns, for example, approximately 24 microns, for example, approximately 23 microns, for example, approximately 22 microns, for example, approximately 21 microns, for example, approximately 20 microns, for example, approximately 19 microns. For example, the distance between the second electrodes of adjacent subpixels may be 1 to 6 microns, for example, 2 to 4 microns, for example, 2 to 3 microns, for example, 2.5 microns. For example, the width of the overlapping portion between the second electrode and the pixel defining layer may be 0.5 to 4 microns, such as 1 to 3 microns, such as 1 to 2 microns, such as 1.5 to 1.7 microns.

[0218] For example, the aperture ratio of the first color subpixel may be 4.45%, the aperture ratio of the second color subpixel may be 6.20%, and the aperture ratio of the third color subpixel may be 8.53%. For example, the PDL gap may be 19 microns. For example, the distance between the second electrodes of adjacent subpixels may be 5 microns, and the width of the overlapping portion between the second electrodes and the pixel defining layer may be 2.5 microns.

[0219] 2 , the size b in the third direction of the overlapping portion between the body electrode of second electrode 120 and pixel defining layer 400 in first color subpixel 100 is smaller than the size c in the third direction of the overlapping portion between the first color light-emitting layer 110 and pixel defining layer 400. Similarly, the size in the third direction of the overlapping portion between the body electrode of second electrode 220 and pixel defining layer 400 in second color subpixel 200 is smaller than the size in the third direction of the overlapping portion between the second color light-emitting layer 210 and pixel defining layer 400.

[0220] However, the second electrode of each subpixel includes a body electrode (described below) and a connecting electrode (described below) connected to the body electrode and configured to be connected to a pixel circuit (described below). For example, the "overlapping portion between the second electrode and the pixel defining layer" referred to in the embodiments of the present disclosure may be the overlapping portion of the second electrode between the body electrode and the pixel defining layer.

[0221] For example, the size b of the overlapping portion of the body electrode of the second electrode 120 in the first color subpixel 100 may be smaller than the size in the third direction of the overlapping portion between the first color light-emitting layer 110 and the adjacent second color light-emitting layer 210. The size in the third direction of the overlapping portion between the body electrode of the second electrode 220 in the second color subpixel 200 and the pixel defining layer 400 is smaller than the size in the third direction of the overlapping portion between the second color light-emitting layer 210 and the adjacent first color light-emitting layer 110.

[0222] 3 , the size in the fourth direction of the overlapping portion between the body electrode of second electrode 220 and pixel defining layer 400 in second color subpixel 200 is smaller than the size in the fourth direction of the overlapping portion between second color light-emitting layer 210 and pixel defining layer 400. Similarly, the size in the fourth direction of the overlapping portion between the body electrode of second electrode 320 and pixel defining layer 400 in third color subpixel 300 is smaller than the size in the fourth direction of the overlapping portion between third color light-emitting layer 310 and pixel defining layer 400.

[0223] For example, the size d of the overlapping portion of the second electrode 220 in the second color subpixel 200 is smaller than the size in the fourth direction of the overlapping portion between the second color light-emitting layer 210 and the adjacent third color light-emitting layer 310. Similarly, the size in the fourth direction of the overlapping portion between the second electrode 320 and the pixel defining layer 400 in the third color subpixel 300 is smaller than the size in the fourth direction of the overlapping portion between the third color light-emitting layer 310 and the adjacent second color light-emitting layer 210.

[0224] For example, the width of the overlapping region between the pixel definition layer 400 and the main electrode of each second electrode is greater than 1.7 microns, e.g., greater than 2 microns. If the portion of the main electrode of each second electrode covered by the pixel definition layer is too large, the aperture ratio of the subpixel decreases. However, if the edges of the main electrode of each second electrode are not covered by the pixel definition layer, problems such as breakdown and short circuits are likely to occur at the corners of the main electrode of each second electrode. Therefore, by minimizing the overlapping area between the pixel definition layer and the second electrode while avoiding breakdown, the aperture ratio can be maximized, display brightness can be improved, and power loss can be reduced.

[0225] In some embodiments, the display panel may not have a touch function, i.e., no touch electrode. In some embodiments, the touch electrode of the display panel may not use a configuration of touch electrode lines and bridge connection lines, and may be, for example, a planar electrode. In some embodiments, the material of the touch electrode of the display panel may be metal, metal oxide, or any other conductive material.

[0226] In some embodiments, photospacers may be disposed on the pixel definition layer. In some embodiments, the photospacers on the pixel definition layer are integrally formed with the pixel definition layer. In some embodiments, the photospacers may not be disposed on the pixel definition layer. For example, the photospacers may be disposed on another film layer. For example, the photospacers may be formed on the opposite substrate. For example, the photospacers may be formed on a mask. In some embodiments, the photospacers may not overlap the pixel definition layer. In some embodiments, the size and area of ​​the photospacers and the pixel definition layer may not satisfy the relationship in the following embodiments. For example, the density of the photospacers may be relatively high, and the ratio of the number of photospacers to subpixels may be approximately the same, for example, the ratio of the number of photospacers to subpixels may be 0.8 to 1.2. For example, in the direction of the center connecting line of the openings of adjacent pixel definition layers, the size of the photospacers and the size of the spacing between the openings of the pixel definition layer may be equivalent, for example, the ratio may be approximately 0.8 to 1.2.

[0227] With the rapid development of touch sensing technology, many household electrical appliances, such as mobile phones, global positioning systems (GPS), tablet PCs, personal digital assistants (PDAs), and laptop PCs, are now equipped with touch functionality. Currently, touch panel technologies are diverse, with common technologies including resistive, capacitive, and optical. Capacitive touch panels have become the mainstream touch technology due to their high accuracy, multi-touch capability, durability, and high touch resolution. The operating principle of capacitive touch panels is to detect changes in capacitance at the touch point using sensing electrodes, and then return signals via touch signal transmission lines connecting each electrode on different axes to determine position.

[0228] In capacitive touch panel technology, sensing electrodes are formed of transparent conductive materials such as indium tin oxide, and because the resistivity of transparent conductive materials is higher than that of metallic conductive materials, forming the sensing electrodes using transparent conductive materials results in problems such as an excessively high overall resistance, which adversely affects response speed, etc. Therefore, a design in which the sensing electrodes are formed using a metal mesh made of crossed metal wires instead of transparent conductive materials can improve response speed.

[0229] With the development of flexible organic light-emitting diode display devices, there is a trend to provide low-cost flexible touch solutions. One flexible touch solution involves fabricating touch electrodes on a film (e.g., a packaging film layer) to form a touch panel. The packaging film layer may be, for example, a laminate of an inorganic layer, an organic layer, and an organic layer, where the inorganic layer is made of, for example, silicon nitride and the organic layer is made of, for example, polyimide. After the packaging film layer is formed, a film layer is formed thereon using a material such as silicon dioxide, and then a first metal mesh layer, a touch insulating layer, and a second metal mesh layer are sequentially formed on the side of the silicon dioxide film layer away from the packaging film layer.

[0230] According to the touch method, capacitive touch screens are divided into self-capacitive touch screens and mutual-capacitive touch screens. Mutual-capacitive touch screens can realize multi-touch, and therefore have become the mainstream product in the current touch screen market and the future development trend.

[0231] Fig. 4 is a partial planar structural schematic diagram of a touch structure of a display panel according to an embodiment of the present disclosure, Fig. 5 is an enlarged structural schematic diagram of region C shown in Fig. 4, Fig. 6 is a partial cross-sectional structural schematic diagram along line DD shown in Fig. 5, and Fig. 7 is a partial cross-sectional structural schematic diagram along line EE shown in Fig. 5. As shown in Fig. 6, each subpixel further includes a first electrode located on a side of the light-emitting layer away from the second electrode. For example, taking a first color subpixel and a second color subpixel as examples, the first color subpixel 100 includes a first electrode 130, and the second color subpixel 200 includes a first electrode 230.

[0232] For example, the first electrode of each sub-pixel may be formed as a continuous film layer, i.e., the first electrode is a common electrode for each sub-pixel. For example, a package layer 500 is provided on a side of the first electrode away from the base substrate, covering the display area 11 and the peripheral area 12, and covering each sub-pixel in the display area and the pixel definition layer 400. For example, the package layer 500 may include a first inorganic package layer 501, an organic package layer 502, and a second inorganic package layer 503, which are stacked in order. For example, a buffer layer 650 may be further provided on a side of the package layer 500 away from the first electrode, and a touch insulating layer 660 may be further provided on a side of the buffer layer 650 away from the package layer 500. For example, the material of the touch insulating layer 660 may include an inorganic material such as silicon oxide or silicon nitride.

[0233] For example, as shown in FIGS. 4 to 7 , at least one embodiment of the present disclosure includes a base substrate including a display region and a peripheral region located around the display region; a plurality of first-color subpixels located in the display region and arranged along a first direction to form a plurality of first-color subpixel rows, the plurality of first-color subpixel rows being arranged along a second direction, and adjacent first-color subpixel rows among the first-color subpixels being shifted from each other along the first direction; a plurality of second-color subpixels located in the display region and arranged in an array along the first direction and the second direction, the plurality of second-color subpixels including four second-color subpixels surrounding one first-color subpixel; and a plurality of third-color subpixels located in the display region, the plurality of first-color subpixels and the plurality of third-color subpixels being arranged alternately along the first direction and the second direction. a pixel definition layer located in the display region and the peripheral region, the pixel definition layer having a plurality of openings to define effective light-emitting areas of the plurality of subpixels, the plurality of first color subpixels having a plurality of first effective light-emitting areas, the plurality of second color subpixels having a plurality of second effective light-emitting areas, and the plurality of third color subpixels having a plurality of third effective light-emitting areas, the plurality of third color subpixels having a plurality of third effective light-emitting areas, the plurality of third color subpixels having a plurality of third effective light-emitting areas, the plurality of third color subpixels having a plurality of first effective light-emitting areas, the plurality of second color subpixels having a plurality of second effective light-emitting areas, and the plurality of third color subpixels having a plurality of third effective light-emitting areas.The plurality of first color sub-pixels comprise a plurality of first color light-emitting layers located in corresponding openings and on the pixel definition layer surrounding the corresponding openings, the plurality of second color sub-pixels comprise a plurality of second color light-emitting layers located in corresponding openings and on the pixel definition layer surrounding the corresponding openings, the plurality of first color light-emitting layers in the plurality of first color sub-pixels being spaced apart from one another, the plurality of second color light-emitting layers in the plurality of second color sub-pixels being spaced apart from one another, and the plurality of third color sub-pixels comprise a plurality of third color light-emitting layers located in corresponding openings and on the pixel definition layer surrounding the corresponding openings, and the plurality of third color light-emitting layers in the plurality of third color sub-pixels being spaced apart from one another.

[0234] The display panel includes a package layer located in the display area and the peripheral area, and a first touch electrode layer located on a side of the package layer away from the base substrate, the first touch electrodes extending along the first direction and a second touch electrode extending along the second direction, each of the first touch electrodes including a plurality of first touch electrode units, each of the second touch electrodes including a plurality of second touch electrode units, the first touch electrode layer including a plurality of touch electrode lines crossing each other to form a plurality of first meshes, and each of the first touch electrode units and each of the second touch electrode units including a plurality of and a touch insulating layer located between the first touch electrode layer and the second touch electrode layer, the touch insulating layer being electrically connected to the connection bridges by passing through vias in the touch insulating layer. The touch insulating layer further includes: a first touch electrode layer including a communicating first mesh; a second touch electrode layer including a plurality of connecting bridges and a plurality of bridge connecting lines crossing to form a second mesh, each of the connecting bridges including a plurality of communicating second meshes, and adjacent second touch electrode units electrically connected to the connecting bridges by passing through vias in the touch insulating layer. The orthogonal projection of the plurality of touch electrode lines located in the display area on the base substrate is within the orthogonal projection of the pixel definition layer on the base substrate.

[0235] In some embodiments, the first color subpixels, the second color subpixels, and the third color subpixels do not have to be arranged in the manner of the above embodiments. The touch electrode lines and bridge connecting lines of each touch electrode are located at intervals between the light-emitting areas of each subpixel, for example, their projections are approximately within the orthogonal projections of the pixel definition layer on the base substrate. In some embodiments, only a portion of the display panel has a touch function, and the touch electrode lines and bridge connecting lines of each touch electrode can be located only in this portion. In some embodiments, the touch electrode lines and bridge connecting lines of each touch electrode are located on another substrate opposite to the base substrate. In some embodiments, the touch electrode lines and bridge connecting lines of each touch electrode are located on a touch substrate, and the touch substrate is assembled with a base substrate on which a pixel structure is formed to form a display panel with a touch function. In some embodiments, the area ratio between the light-emitting layer of a subpixel of the display panel and the corresponding effective light-emitting area may be the same as in the arrangement manner of the above embodiments. In some embodiments, the area ratio between the light-emitting layer of a sub-pixel of the display panel and the corresponding effective light-emitting area may be different from that of the arrangement method of the above embodiment, i.e., the area ratio may not have a specific size relationship, or the area ratio of at least some of the sub-pixels may not satisfy the relationship of the above embodiment.

[0236] 4 to 7, the display panel further includes a first touch electrode layer 610 and a second touch electrode layer 620 located on a side of the buffer layer 650 away from the package layer 500. For example, the second touch electrode layer 620 may be located between the first touch electrode layer 610 and the package layer 500, and a touch insulating layer 660 may be further installed between the first touch electrode layer 610 and the second touch electrode layer 620. However, the embodiments of the present disclosure are not limited thereto, and the second touch electrode layer 620 may also be located on a side of the first touch electrode layer 610 away from the package layer 500.

[0237] For example, the first touch electrode layer 610 includes a plurality of first touch electrodes 611 and a plurality of second touch electrodes 612, each of which includes a plurality of first touch electrode units 6110 arranged in a first direction, and each of which includes a plurality of second touch electrode units 6120 arranged in a second direction. The first touch electrode layer 610 includes a plurality of touch electrode lines 6112 that are crossed to form a plurality of first meshes 601. Each of the first touch electrode units 6110 and each of the second touch electrode units 6120 includes a plurality of first meshes 601 that are connected to each other. Here, the term "a plurality of connected first meshes" means that the plurality of first meshes are electrically connected and have an integral structure.

[0238] For example, the second touch electrode layer 620 includes a plurality of connecting bridges 621 including a plurality of bridge connection lines 6210 crossing to form a second mesh 602, and each connecting bridge 621 includes a plurality of communicating second meshes 602, and adjacent second touch electrode units 6120 are electrically connected via at least one connecting bridge 621. Here, the communicating second meshes mean that the plurality of communicating second meshes are electrically connected and have an integral structure.

[0239] For example, one of the first touch electrode 611 and the second touch electrode 612 is a touch sensing electrode, and the other is a touch driving electrode, and the touch sensing electrode and the touch driving electrode are both formed in the same electrode layer, i.e., the first touch electrode layer 610. One of the touch sensing electrodes and the touch driving electrodes, for example, the plurality of first touch electrode units 6110, is directly connected, and the other, for example, the plurality of second touch electrode units 6120, is disconnected at the positions where it directly connects to adjacent touch driving electrodes, and a connection bridge is formed through another electrode layer. That is, the first touch electrode units 6110 in a row arranged along the X direction are directly electrically connected, and the second touch electrode units 6120 in a row arranged along the Y direction are electrically connected via the connection bridge 621 in the second touch electrode layer 620.

[0240] For example, Figures 4 and 5 illustrate an example in which two adjacent second touch electrode units 6120 are electrically connected via two connection bridges 621, but this is not limited thereto and they may be electrically connected via one connection bridge or multiple connection bridges.

[0241] For example, as shown in FIGS. 4 to 7 , the orthogonal projection of the plurality of touch electrode lines 6112 located in the display area on the base substrate is within the orthogonal projection of the pixel definition layer 400 on the base substrate, i.e., the line width of each touch electrode line 6112 is smaller than the PDL gap. The line width of each touch electrode line 6112 is 2 to 5 microns. For example, the line width of each touch electrode line 6112 may be 3 microns. For example, the material of the touch electrode line may include a metal. For example, the material of the touch electrode line may include three layers of Ti / Al / Ti. The touch electrode line includes a metal and has a predetermined width and thickness. Since the touch electrode line somewhat blocks the light output of the subpixels of each color, the line width of the touch electrode line may be set relatively narrow so as not to overlap with the effective light-emitting area of ​​each subpixel to prevent the touch electrode line from affecting the overall display uniformity.

[0242] For example, for ease of manufacturing, the line width of the touch electrode line 6112 may be the same as the line width of the bridge connecting line 6210, but is not limited thereto, and the line width of the bridge connecting line may be larger than the line width of the touch electrode line.

[0243] 4 to 7 , within the display area, 80% or more of the orthogonal projections on the base substrate of center lines extending in the extension direction of the touch electrode lines 6112 of pixel definition layer segments overlapping with the touch electrode lines 6112 in the pixel definition layer 400 are within the orthogonal projections on the base substrate of the touch electrode lines 6112. For example, within the display area, 90% or more of the orthogonal projections on the base substrate of center lines extending in the extension direction of the touch electrode lines 6112 of pixel definition layer segments overlapping with the touch electrode lines 6112 in the pixel definition layer 400 are within the orthogonal projections of the touch electrode lines 6112 on the base substrate. For example, except for the cut portion of the touch electrode line 6112, essentially all of the orthogonal projections on the base substrate of center lines extending in the extension direction of the touch electrode lines 6112 of pixel definition layer segments overlapping with the touch electrode lines 6112 in the pixel definition layer 400 are within the orthogonal projections of the touch electrode lines 6112 on the base substrate. For example, the center line extending along the extension direction of the touch electrode line of the pixel definition layer may be half the width of the boundary line of the pixel definition layer between the effective light-emitting areas of the sub-pixels of different colors.

[0244] In some embodiments, the extension direction of each portion of the touch electrode line 6112 or the bridge connecting line may not be exactly the same as the extension direction of the corresponding pixel defining layer segment, for example, there may be a certain included angle, for example, the included angle is 0 to 30 degrees. In some embodiments, some pixel defining layer segments may be irregularly shaped or curved, for example, some regions may have notches or protrusions, and the extension direction may be the same as the main portion or the approximate direction of the curved portion.

[0245] In the embodiments of the present disclosure, the touch electrode lines are disposed at the middle positions of the PDL gaps, for example, the center lines of the pixel definition layers are covered by the touch electrode lines, thus preventing the touch electrode lines from affecting the display uniformity of the entire display panel.

[0246] For example, the orthogonal projection on the base substrate of the center line extending along the extension direction of the bridge connecting line 6210 on the surface of the pixel definition layer 400 away from the base substrate is within the orthogonal projection on the base substrate of the bridge connecting line 6210. In the embodiment of the present disclosure, the touch electrode line is disposed at the middle position of the PDL gap, for example, the center line of the pixel definition layer is covered by the bridge connecting line, thereby preventing the bridge connecting line from affecting the display uniformity of the entire display panel.

[0247] For example, as shown in FIGS. 4 to 7, the first electrode located within the effective light-emitting area of ​​each subpixel does not overlap with both the touch electrode line 6112 and the bridge connecting line 6210, and the thickness of the insulating layer between the first electrode and the second touch electrode layer 620 within the effective light-emitting area of ​​each subpixel is greater than the thickness of the insulating layer between the first electrode and the second touch electrode layer 620 within the non-light-emitting area. Because the second touch electrode layer is formed on the packaging film, the distance between the first electrode and the second touch electrode layer is small. The signal on the first electrode is a signal for driving the light-emitting layer to emit light, while the signal on the touch electrode layer is a touch electrode signal. The two signals are different, and if the distance is set smaller, interference will occur. Therefore, by setting the thickness of the insulating layer between the first electrode and the touch electrode layer within the effective light-emitting area of ​​each subpixel to be thicker, the signal interference between the first electrode and the touch electrode layer can be effectively reduced, thereby avoiding any impact on normal display or touch accuracy.

[0248] For example, as shown in FIG. 6, the first electrodes of multiple subpixels are the entire film layer, and the distance between the first electrode located within the effective display area and the touch electrode layer closer to the first electrode among the first touch electrode layer and the second touch electrode layer is greater than the distance between the first electrode located on the pixel definition layer and the touch electrode layer closer to the first electrode among the first touch electrode layer and the second touch electrode layer.

[0249] For example, the first electrode is an entire film layer, and the distance between the first electrode located within the effective light-emitting area and the first touch electrode layer is greater than the distance between the first electrode located outside the effective light-emitting area and the first touch electrode layer. For example, the first electrode located outside the effective light-emitting area is a part formed on a side of the physical structure of the pixel definition layer away from the base substrate and overlapping with the physical structure of the pixel definition layer. For example, there are only some light-emitting functional film layers between the first electrode located outside the effective light-emitting area and the physical structure of the pixel definition layer, and the light-emitting functional film layers respectively contact the first electrode and the physical structure of the pixel definition layer outside the effective light-emitting area.

[0250] For example, within the display area, the total thickness of the insulating layer between the first electrode located within the effective light-emitting area of ​​each subpixel and the touch electrode layer of the first or second touch electrode layer that is closer to the first electrode is greater than the total thickness of the insulating layer between the first electrode located outside the effective light-emitting area of ​​each subpixel and the touch electrode layer of the first or second touch electrode layer that is closer to the first electrode. For example, the insulating layer may include an insulating layer within the package layer, such as a first inorganic layer, a first organic layer, a second inorganic layer, and a buffer layer between the package layer and the touch electrode layer (e.g., when the first touch electrode layer is located between the second touch electrode layer and the base substrate, a buffer layer between the package layer and the first touch layer). The total thickness here may be the average total thickness within the effective light-emitting area, such as the thicknesses of all corresponding insulating layers in the first, second, and third effective light-emitting areas.

[0251] For example, as shown in FIG. 4 , a plurality of first touch electrodes 610 and a plurality of second touch electrodes 620 are connected to a lead terminal area 640 via a plurality of touch electrode lines 630. A touch operation and a location where the touch operation has occurred can be detected by applying a detection electrical signal to the plurality of touch electrode lines 630. For example, to realize double-sided driving, the first touch electrode 610 is connected to the touch electrode lines 630 on both sides in the X direction. Of course, the embodiments of the present disclosure are not limited thereto. To realize single-sided driving, the first touch electrode may be connected to the touch electrode lines on only one side. The touch electrode lines 630 may be installed to surround the outside of the first touch electrode and the second touch electrode. For convenience of explanation, the space where the touch electrode lines are installed is enlarged in the drawings. The first touch electrode and the second touch electrode may overlap both the display area and the non-display area.

[0252] The plurality of first touch electrodes 610 and the plurality of second touch electrodes 620 can form a capacitor at their overlapping positions, and when touched by a finger, the coupling of the capacitor near the touch point is affected, thereby changing the capacitance of the capacitor near the touch point, and such change in capacitance can be used to determine the touch position. The embodiments of the present disclosure are not limited thereto. For example, the touch layer may include a mutual capacitance type touch structure or a self-capacitance type touch structure. The touch layer may also be made of a material such as nano-silver wire.

[0253] For example, FIG. 8 is a schematic diagram of the positional relationship between the touch electrode and the effective light-emitting area of ​​each subpixel, and FIG. 9 is an enlarged view of area F in FIG. 8. As shown in FIGS. 8 and 9, in the display area, the effective light-emitting area of ​​each subpixel is located within each first mesh 601, i.e., one first mesh 601 surrounds the effective light-emitting area of ​​one subpixel. For example, the shape of the first mesh 601 is approximately rectangular. The ratio of the area of ​​the opening of the first mesh 601 corresponding to the first-color subpixel 100 to the area of ​​the first effective light-emitting area 101 is smaller than the ratio of the area of ​​the opening of the first mesh 601 corresponding to the second-color subpixel 200 to the area of ​​the second effective light-emitting area 201, and the ratio of the area of ​​the opening of the first mesh 601 corresponding to the third-color subpixel 300 to the area of ​​the third effective light-emitting area 301 is smaller than the ratio of the area of ​​the opening of the first mesh 601 corresponding to the second-color subpixel 200 to the area of ​​the second effective light-emitting area 201. The first mesh corresponding to each subpixel is a mesh surrounding the effective light-emitting area of ​​the subpixel. In the embodiment of the present disclosure, when the area of ​​the effective light-emitting area of ​​the second-color subpixel is smallest, the impact on the brightness uniformity of the entire display panel is greatest. Therefore, by maximizing the ratio of the area of ​​the opening of the first mesh corresponding to the second-color subpixel to the area of ​​the second effective light-emitting area, the limitation of the touch electrode line on the light output angle of the second-color subpixel can be reduced. The "area of ​​the opening of the first mesh" refers to the area of ​​the hollow area surrounded by the touch electrode line. For example, the shape of the hollow area may be approximately rectangular.

[0254] For example, the shape of the first mesh corresponding to the subpixels of the first color may be rectangular, for example, approximately square, with two side lengths of 30 to 33 microns each, and an area of ​​900 to 1000 square microns, the area of ​​the openings in the pixel definition layer corresponding to the subpixels of the first color may be 200 to 250 square microns, and the ratio of the two areas may be 4 to 5. For example, the shape of the first mesh corresponding to the subpixels of the second color may be rectangular, with two side lengths of 28 to 31 microns and 30 to 33 microns each, and an area of ​​850 to 1100 square microns, for example, 900 to 1000 square microns, the area of ​​the openings in the pixel definition layer corresponding to the subpixels of the second color may be 100 to 180 square microns, for example, 100 to 150 square microns, and the ratio of the two areas may be 5 to 9, for example, 7 to 8. For example, the shape of the first mesh corresponding to the subpixels of the third color may be rectangular, for example, approximately square, with each of the two side lengths being 30 to 38 microns, and its area may be 900 to 1300 square microns, for example, 1100 to 1200 square microns.The area of ​​the openings in the pixel definition layer corresponding to the subpixels of the third color may be 300 to 400 square microns, and the ratio of the two areas may be 3 to 4.

[0255] For example, the size range of each light-emitting layer covering the pixel defining layer in the direction of the connecting line from the center of the first effective light-emitting area of ​​a first color subpixel to the center of the second effective light-emitting area of ​​an adjacent second color subpixel may be 5 to 15 microns, and the size range may be, for example, 7 to 13 microns.

[0256] For example, the distance between the adjacent edges of the touch electrode line and the opening of the pixel definition layer may be 3.5 to 13.5 microns, e.g., 3.5 to 11.5 microns. In the embodiments of the present disclosure, the distance between the boundary of the touch electrode line and the edge of the opening of the pixel definition layer is designed to be relatively large, thereby ensuring that the touch electrode line is as far away as possible from each opening of the pixel definition layer, reducing the blocking of the touch electrode line on the light output of each sub-pixel, and thereby avoiding color cast caused by uneven blocking of the touch electrode line for sub-pixels of different colors.

[0257] 4 to 8, each second mesh 602 has a V-shape, and two end points of the V-shape are electrically connected to the second touch electrode unit 6120 through the vias 603 in the touch insulating layer 660. For example, adjacent second touch electrode units 6120 may be electrically connected through two connection bridges 621, and the V-shaped openings of the two connection bridges 621 face each other, but the embodiments of the present disclosure are not limited thereto, and adjacent second touch electrodes may be electrically connected through one connection bridge or multiple connection bridges.

[0258] For example, each second mesh 602 corresponds to two first effective light-emitting regions 101, five second effective light-emitting regions 201, and two third effective light-emitting regions 301. For example, the second effective light-emitting regions 201 are located in the second mesh closest to the two endpoints of the V-shaped opening. For example, the ratio of the number of subpixels in the display panel is first color subpixels:second color subpixels:third color subpixels=1:2:1, and the ratio of the number of first color subpixels to the number of third color subpixels surrounded by the connecting bridges 621 is smaller than the ratio of the number of first color subpixels to the number of third color subpixels in the display area, thereby reducing the limitation on the light output of the first color subpixels and the third color subpixels and improving the light-emitting efficiency of the first color subpixels and the third color subpixels.

[0259] Fig. 10 is a partial planar structural schematic diagram of a pixel structure according to another embodiment of the present disclosure, and Fig. 11 is a schematic diagram of the positional relationship between the pixel structure shown in Fig. 10 and touch electrode lines. As shown in Fig. 10 and Fig. 11 , a gap 20 is provided between adjacent first color light-emitting layers 110, second color light-emitting layers 210, and third color light-emitting layers 310, the shape of the first color light-emitting layer 110 has a first rounded rectangle and a first protruding portion 1101 located at the rounded corners of the first rounded rectangle and protruding into the gap 20, the shape of the second color light-emitting layer 210 has a second rounded rectangle, and the first protruding portion 1101 at least partially protrudes from an extension line of a straight side of the first rounded rectangle that is closer to the second color light-emitting layer 210, and for example, the straight side is parallel to a side that is expected to be the closest of the corresponding effective light-emitting area. The shape of the third color light-emitting layer 310 comprises a third rounded rectangle and a second protruding portion 3101 located at the rounded corner of the third rounded rectangle and protruding into the gap 20, and the second protruding portion 3101 protrudes at least partially from an extension of a straight side of the third rounded rectangle that is closest to the second color light-emitting layer 210, for example, the straight side being parallel to the side that is expected to be the closest of the corresponding effective light-emitting area. In the pixel structure according to the embodiment of the present disclosure, the shape of the first-color light-emitting layer includes a first protrusion located at the rounded corners of the first rounded rectangle and protruding into the gap. Compared to a first-color light-emitting layer without a first protrusion, the first protrusion of the first-color light-emitting layer according to the embodiment of the present disclosure occupies part of the area of ​​the gap, thereby reducing the area of ​​the gap. This, on the one hand, improves the utilization rate of the gap, and, on the other hand, increases the distance between the rounded edge of the first-color light-emitting layer and the corresponding rounded edge of the second electrode (i.e., the anode), thereby reducing and ultimately avoiding the risk of defects such as color mixing and color cast, and improving the yield rate. For example, the gap may be an area without a light-emitting layer surrounded by one first-color light-emitting layer, one second-color light-emitting layer, and one third-color light-emitting layer that are adjacent to each other and distributed in a substantially triangular shape, where the one first-color light-emitting layer, one second-color light-emitting layer, and one third-color light-emitting layer that are adjacent to each other and distributed in a substantially triangular shape are, for example, one first-color light-emitting layer and one third-color light-emitting layer that are adjacent to each other in the same row, and one second-color light-emitting layer that is adjacent to both the first-color light-emitting layer and the third-color light-emitting layer in an adjacent row.

[0260] For example, the orthogonal projections of the first protrusion and the second protrusion on the base substrate and the orthogonal projections of the touch electrode lines on the base substrate at least partially overlap.

[0261] For example, the overlapping portion of the edges of the light-emitting layers of two adjacent subpixels of different colors on the pixel definition layer 400 is the overlapping portion 21, and the orthogonal projection of the touch electrode line 6112 on the base substrate at least partially overlaps with the orthogonal projection of the overlapping portion 21 on the base substrate.

[0262] In some embodiments, the pixel array structure shown in Figure 10 may not be used, and other pixel array structures may be used, such as the elongated array shown in Figure 1E, the triangular array shown in Figure 1H, the letter-shaped array shown in Figure 1F, or the mosaic array shown in Figure 1G. For example, as shown in Figure 1H, the size of the blue subpixel 300 may be set larger than the red subpixel 100 and the green subpixel 200, thereby extending the service life of the display panel.

[0263] 10 and 11, in the display area, the orthogonal projection of 50% or more of the touch electrode lines 6112 on the base substrate is within the orthogonal projection of the overlapping portion 21 on the base substrate. For example, in the display area, the orthogonal projection of 50% or more of the touch electrode lines on the base substrate is within the orthogonal projection of the overlapping portion of the light-emitting layer on the base substrate, and the overlapping portion of the light-emitting layer includes overlapping portions of at least two of the first color light-emitting layer, the second color light-emitting layer, and the third color light-emitting layer. For example, in the display area, the orthogonal projection of 70% or more of the touch electrode lines on the base substrate is within the orthogonal projection of the overlapping portion of the light-emitting layer on the base substrate. For example, in the display area, the orthogonal projection of 80% or more of the touch electrode lines on the base substrate is within the orthogonal projection of the overlapping portion of the light-emitting layer on the base substrate. In the overlapping portion of the light-emitting layers of different colors, undesired colors are likely to be generated due to crosstalk, resulting in display defects. In order to reduce the influence of crosstalk, partial blocking with touch electrode lines can improve the display effect.

[0264] During the deposition of emissive layers using FMMs, the distance between the FMM aperture and the edge of each subpixel's second electrode is a critical parameter for ensuring deposition yield. However, due to manufacturing process issues, the distance between the rounded edge of the FMM aperture and the edge of the anode in actual applications often does not reach the theoretically designed value. As a result, within the same FMM group, the FMM apertures are different, meaning the gaps between adjacent emissive layers of different colors are relatively large and underutilized, increasing the risk of defects such as color mixing and color cast. Therefore, a new FMM is designed to utilize the gaps, thereby increasing the distance between the rounded edge of the fabricated FMM aperture and the rounded edge of each subpixel's second electrode, i.e., compensating for (increasing) the rounded corners of the FMM aperture, thereby reducing or even avoiding defects such as color mixing and color cast and improving yield. However, the distance between the FMM opening and the edge of the second electrode is the distance between the edge of the orthogonal projection of the FMM opening on the substrate on which the second electrode is placed and the edge of the second electrode, and is not the distance in three-dimensional space.

[0265] In the fine metal mask process, the corner positions of the light-emitting layer, for example, the position where the first color subpixel and the third color subpixel are closest to each other, are prone to missing film layer material and defects in the film layer quality. Therefore, the pattern shape of the light-emitting layer can be adjusted for the portion where the first color subpixel and the third color subpixel face each other. For example, by rounding the corner positions of the openings of the fine metal mask and protruding the openings of the fine metal mask outward on both sides of the corners, the quality of the film layer at the positions corresponding to each corner can be improved and the process accuracy at the corner positions can be improved.

[0266] In some embodiments, the light-emitting layer having the protruding portion may have other shapes, such as a triangle, a rectangle, a pentagon, a hexagon, or an octagon. In some embodiments, the adjacent light-emitting layers do not need to be distributed corner-to-corner, and for example, the portions of the adjacent light-emitting layers closest to each other may be corner-to-side, side-to-side, or completely offset (i.e., the projections of the two adjacent light-emitting layers on a straight line within the space between the two nearest portions of the adjacent light-emitting layers do not substantially overlap).

[0267] For example, with respect to a center line of the pixel defining layer between the first color subpixel and the second color subpixel, at least a portion of the first color light-emitting layer crosses the center line, and at least a portion of the center line is in an overlapping area between the light-emitting layers of the first color subpixel and the second color subpixel. Similarly, with respect to a center line of the pixel defining layer between the second color subpixel and the third color subpixel, at least a portion of the second color light-emitting layer crosses the center line, and at least a portion of the center line is in an overlapping area between the light-emitting layers of the second color subpixel and the third color subpixel.

[0268] For example, by adjusting the shape of at least some of the light-emitting layers, the boundaries of each light-emitting layer overlap with the boundaries of adjacent light-emitting layers. For example, in edge regions where the composition or thickness changes, the molecular weight and thickness of the material can be measured using a molecular probe. For example, in the overlapping portion between the light-emitting layers of a first color subpixel and a second color subpixel, the material of the film layer in the overlapping portion near the center of the light-emitting layer of the first color subpixel is primarily made of the material of the light-emitting layer of the first color subpixel and secondary made of the material of the light-emitting layer of the second color, and the thickness of the first color light-emitting layer is greater than that of the second color subpixel. At least a portion of the uneven shape (i.e., the planar shape at the boundary of the light-emitting layer is uneven) occurring at the boundary of the light-emitting layers of each color subpixel is covered by the touch electrode lines. In the light-emitting layer pattern, the film layer near the center of the PDL gap of the pixel definition layer has poor uniformity, which may cause lateral leakage current and lead to undesired light generation or crosstalk between adjacent light-emitting layers. Therefore, blocking the overlapping portion of the boundary of the light-emitting layers with the touch electrode lines can improve the display quality of the display panel.

[0269] For example, the line width of the touch electrode line may be 3 microns, and when the boundaries of two adjacent light-emitting layers are connected, the width of the shadow region may be 2a, i.e., 6 to 8 microns. For example, the width of the overlapping portion of the boundaries of adjacent light-emitting layers in the direction of the connecting line connecting the centers of the openings of two adjacent pixel definition layers may be less than 6 to 8 microns. For example, the orthogonal projection of at least the central portion of the touch electrode line disposed between the first-color subpixel and the second-color subpixel on the base substrate is entirely within the orthogonal projection of the overlapping portion of the boundaries of the light-emitting layers on the base substrate. For example, the light-emitting layers may not overlap at the diagonal position between the first-color light-emitting layer of the first-color subpixel and the third-color light-emitting layer of the third-color subpixel. Therefore, some of the touch electrode line may not overlap the overlapping region of the light-emitting layers. Therefore, for touch electrode lines within the display area, at least 50% or more of the orthogonal projection on the base substrate of the overlapping region of the light-emitting layers is within the orthogonal projection on the base substrate of the overlapping region of the light-emitting layers. For example, at least 80% or more of the orthogonal projections of the touch electrode lines in the display area on the base substrate are within the orthogonal projections of the light-emitting layer overlapping area on the base substrate, thereby reducing color transfer due to the overlap of the light-emitting layers.

[0270] For example, each sub-pixel includes an organic light-emitting element and a pixel circuit connected to the organic light-emitting element, and each pixel circuit is located between the organic light-emitting element and the base substrate.

[0271] For example, Figure 12A is a schematic diagram of a pixel circuit included in each subpixel, and Figure 12B exemplarily illustrates the positional relationship of each transistor in the active layer and gate line layer. As shown in Figures 12A and 12B, taking a first-color subpixel as an example, the first-color subpixel 100 includes an organic light-emitting element 1100 and a pixel circuit 1200. The pixel circuit 1200 of the first-color subpixel includes a driving transistor T1, a first light-emitting control transistor T4, a second light-emitting control transistor T5, a data write transistor T2, a storage capacitor C, a threshold compensation transistor T3, a first reset transistor T6, and a second reset transistor T7. The driving transistor T1 includes a gate, a first pole, and a second pole, and is configured to drive the organic light-emitting element 1100 to emit light. The display panel further includes a data line Vd (see FIG. 13A) installed in the same layer as the power supply signal transmission line VDD (see FIG. 13A), and the extension directions of the data line and the first signal transmission line are the same. The display panel further includes a gate line Ga, a light emission control signal line EM, and a reset control signal line Rst, which are located on the side of the first signal transmission line facing the base substrate and are parallel to each other, and the extension direction of the gate line intersects with the extension direction of the data line, for example, the extension direction of the gate line is perpendicular to the extension direction of the data line. The display panel further includes a reset power supply signal line (not shown) extending along the first direction, and this reset power supply signal line is located between the film layer in which the gate line is located and the film layer in which the data line is located.

[0272] For example, as shown in FIGS. 12A, 12B, and 13A, a first electrode of a data write transistor T2 is electrically connected to a first electrode of a driving transistor T1, a second electrode of the data write transistor T2 is electrically connected to a data line Vd to receive a data signal, a gate of the data write transistor T2 is electrically connected to a gate line Ga to receive a scan signal, a first electrode CC1 of a storage capacitor C is electrically connected to a first voltage side VDD, a second electrode CC2 of the storage capacitor C is electrically connected to a gate of the driving transistor T1, a first electrode of a threshold compensation transistor T3 is electrically connected to a second electrode of the driving transistor T1, a second electrode of the threshold compensation transistor T3 is electrically connected to a gate of the driving transistor T1, a gate of the threshold compensation transistor T3 is electrically connected to the gate line Ga to receive a compensation control signal, and a first electrode of a first reset transistor T6 is electrically connected to a reset power supply signal line Vinit to receive a reset signal. a first electrode of the second reset transistor T7 electrically connected to a reset power supply signal line Vinit to receive a reset signal; a second electrode of the second reset transistor T7 electrically connected to a second electrode of the organic light emitting element 1100; a gate of the second reset transistor T7 electrically connected to the reset control signal line Rst to receive a reset control signal; a first electrode of the first light emitting control transistor T4 electrically connected to a first voltage side VDD; a second electrode of the first light emitting control transistor T4 electrically connected to a first electrode of the driving transistor T1; a gate of the first light emitting control transistor T4 electrically connected to an light emitting control signal line EM to receive a light emitting control signal; a first electrode of the second light emitting control transistor T5 electrically connected to a second electrode of the driving transistor T1;The second electrode of the second light-emitting control transistor T5 is electrically connected to the second electrode of the organic light-emitting element 1100, the gate of the second light-emitting control transistor T5 is electrically connected to the light-emitting control signal line EM to receive the light-emitting control signal, and the first electrode of the organic light-emitting element 1100 is electrically connected to the second voltage side VSS.

[0273] For example, one of the first voltage side VDD and the second voltage side VSS is a high voltage side and the other is a low voltage side. For example, in the embodiment shown in Figure 12A, the first voltage side VDD may be a voltage source and outputs a constant first voltage, the first voltage being a positive voltage, and the second voltage side VSS may be a voltage source and outputs a constant second voltage, the second voltage being a negative voltage.

[0274] For example, transistors can be divided into N-type and P-type transistors depending on their characteristics. In the embodiments of the present disclosure, the transistors are assumed to be P-type transistors (e.g., P-type MOS transistors). In the description of the present disclosure, the driving transistor T1, data writing transistor T2, threshold compensation transistor T3, first light-emitting control transistor T4, second light-emitting control transistor T5, first reset transistor T6, and second reset transistor T7 may all be P-type transistors. Meanwhile, the transistors in the embodiments of the present disclosure are not limited to P-type transistors. Those skilled in the art may use N-type transistors (e.g., N-type MOS transistors) to achieve the functions of one or more transistors in the embodiments of the present disclosure, depending on actual needs. The transistors used in the embodiments of the present disclosure may be thin-film transistors, field-effect transistors, or other switching devices with the same characteristics. The thin-film transistors may include oxide semiconductor thin-film transistors, amorphous silicon thin-film transistors, polysilicon thin-film transistors, etc. The source and drain of a transistor may be symmetrical in structure, and therefore the physical structure of the source and drain may remain unchanged. In the embodiments of the present disclosure, in order to distinguish between transistors, one electrode is described as a first pole and the other as a second pole, except for the gate as a control electrode. Therefore, in the embodiments of the present disclosure, all or part of the first pole and the second pole of the transistor can be interchanged as needed.

[0275] However, in the embodiments of the present disclosure, in addition to the 7T1C (i.e., seven transistors and one capacitor) structure shown in FIG. 15B , the pixel circuit may have a structure including other numbers of transistors, such as a 7T2C structure, a 6T1C structure, a 6T2C structure, or a 9T2C structure, and the embodiments of the present disclosure are not limited thereto. In the embodiments of the present disclosure, any type of pixel arrangement, such as a linear array of pixels, a rectangular array of pixels, a triangular array of pixels, or a mosaic array of pixels, may be used. In the embodiments of the present disclosure, the ratio of the numbers of R, G, and B in one pixel unit or repeating unit may be any one or a combination of two or more of 1:1:2, 1:2:1, 2:2:1, 1:1:1, 1:2:3, 3:3:2, 1:3:2, 2:3:1, 3:2:3, 2:3:3, etc. For example, the sizes of R, R, and B may be the same or different. For example, the size of the opening in the pixel definition layer of a single subpixel may be such that B is larger than R and B is larger than G. For example, for the size of the opening in the pixel defining layer of a single subpixel, B may be greater than R and R may be greater than G. For example, for the size of the opening in the pixel defining layer of a single subpixel, B may be greater than R and R may be equal to G. For example, for the size of the opening in the pixel defining layer of a single subpixel, B may be equal to R and R may be greater than G. For example, for the size of the opening in the pixel defining layer of a single subpixel, R may be greater than G. For example, for the size of the opening in the pixel defining layer of a single subpixel, G may be greater than R. For example, for the size of the opening in the pixel defining layer of a single subpixel, G may be greater than B. For example, the number of subpixels included in each repeating unit or pixel unit may be any one or combination of two or more of 2, 3, 4, 5, 6, 7, 8, 9, 10, etc.

[0276] In some embodiments, the areas of the effective light-emitting areas of some subpixels of the same color may be different. For example, in some embodiments, the subpixels included in one repeat unit or pixel unit may include two green subpixels of the same color, or two red subpixels of the same color, or two blue subpixels of the same color, or two pairs of subpixels of the same color (e.g., two green subpixels and two red subpixels), where the areas of the effective light-emitting areas of the subpixels of the same color may be different. In some embodiments, the areas of the effective light-emitting areas of the subpixels of the same color may be different or have different shapes at edge positions, irregularly shaped regions, folded regions, etc. from the areas of the effective light-emitting areas of the subpixels of the same color in other regions.

[0277] In the above embodiments, the emission color, size, shape, and position of each subpixel can be arbitrarily combined. For example, the subpixels may be partially the same and partially different in size and shape, or may be completely the same or completely different. For example, some subpixels may be the same size but have different shapes. For example, some subpixels may have approximately the same shape and outline but different areas. For example, a first-color subpixel may be surrounded by a variable number of second-color subpixels, e.g., two, three, four, five, six, seven, eight, etc., and these second-color subpixels may be approximately the same distance from the first-color subpixels, or may be partially the same but partially different. For example, a second-color subpixel may be surrounded by a variable number of third-color subpixels, e.g., two, three, four, five, six, seven, eight, etc., and these first-color subpixels may be approximately the same distance from the second-color subpixels, or may be partially the same but partially different. For example, a third color subpixel may have a varying number of second color subpixels around it, e.g., two, three, four, five, six, seven, eight, etc., and these second color subpixels may be approximately the same distance from the third color subpixel, or some may be the same but others may be different.

[0278] 13A is a schematic diagram illustrating a positional relationship between a pixel circuit and a touch electrode line according to an embodiment of the present disclosure. As shown in FIG. 13A, at least one of the second electrodes 120 of the first color subpixels 100, the second electrodes 220 of the second color subpixels 200, and the second electrodes 320 of the third color subpixels 300 overlaps with the touch electrode line 6112.

[0279] 13A, the second electrode 220 in the second color subpixel 200 includes a main electrode 221, a connecting electrode 222, and an auxiliary electrode 223. For example, the main electrode, the connecting electrode, and the auxiliary electrode of the second color subpixel 200 are an integrated electrode.

[0280] For example, of the second electrode 220 of the second-color subpixel 200, the main electrode 221 overlaps the second effective light-emitting area 201, and the shape of the main electrode 221 is substantially the same as the shape of the second effective light-emitting area 201, while the connection electrode 222 and the auxiliary electrode 223 do not overlap the second effective light-emitting area 201. For example, the connection electrode 222 is configured to be electrically connected to the second electrode of the second light-emitting control transistor T5. For example, the auxiliary electrode 223 overlaps the driving transistor T1, and the touch electrode line 6112 does not overlap the entire second electrode 220 of the second-color subpixel 200.

[0281] 13A , the second electrode 120 of the first-color subpixel 100 includes a main electrode 121 and a connection electrode 122, where the main electrode 121 overlaps the first effective light-emitting area 101, the main electrode 121 has substantially the same shape as the first effective light-emitting area 101, and the connection electrode 122 does not overlap the first effective light-emitting area. For example, the connection electrode 122 is configured to be electrically connected to the second electrode of the second light-emission control transistor T5. For example, the second electrode 120 of the first-color subpixel 100 overlaps with the touch electrode line 6112, and the connection electrode 122 of the first-color subpixel 100 overlaps with the touch electrode line 6112.

[0282] 13A , the second electrode 320 of the third-color subpixel 300 includes a main electrode 321 and a connection electrode 322, where the main electrode 321 overlaps the third effective light-emitting area, the shape of the main electrode 321 is substantially the same as the shape of the third effective light-emitting area, and the connection electrode 322 does not overlap the third effective light-emitting area. For example, the connection electrode 322 is configured to be electrically connected to the second electrode of the second light-emission control transistor T5. For example, the second electrode 320 of the third-color subpixel 300 overlaps the touch electrode line 6112, and the connection electrode 322 of the third-color subpixel 300 overlaps the touch electrode line 6112.

[0283] For example, at least one of the second electrodes of the first color subpixels, the second color subpixels, and the third color subpixels overlaps with the touch electrode line, and / or the driving transistor of at least one of the first color subpixels, the second color subpixels, and the third color subpixels overlaps with the touch electrode line. In addition to serving as an electrode for driving light emission, the second electrode is also used to, for example, block part of the structure of some transistors, and the overlap with the touch line can more effectively perform the blocking support function.

[0284] For example, as shown in FIG. 13A , the driving transistor T1 of the second color subpixel 200 overlaps the touch electrode line 6112, while the driving transistors of the first color subpixel 100 and the third color subpixel 300 do not overlap the touch electrode line 6112. When the driving transistor overlaps the touch electrode line, the case where the gate of the touch transistor (e.g., the storage capacitor CC2 shown in FIG. 12B ) overlaps the touch electrode line is also included. Of course, the embodiments of the present disclosure are not limited thereto, and the driving transistor T1 may further include a source region T11 and a drain region T12, which are made conductive by doping or the like to realize electrical connection between the respective structures. When the driving transistor T1 overlaps the touch electrode line, the case where the source region T11 and the drain region T12 of the driving transistor overlap the touch electrode line may also be included. The drive transistor plays a very important role in the output current of the pixel circuit, and the size of the drive transistor (e.g., gate size, or the semiconductor area between the source and drain) is generally larger than other crystals, and the drive transistor is easily affected by elements such as light; therefore, partially blocking it with the touch electrode line can stabilize the drive transistor more effectively, thereby reducing its interference with the output current.

[0285] 13A , the second electrode 220 of the second color subpixel 200 does not substantially overlap with the touch electrode line 6112. For example, neither the second electrode of the first color subpixel 100 nor the second electrode of the third color subpixel 300 overlaps with the touch electrode line 6112.

[0286] For example, the portion of the driving transistor T1 of the second color subpixel 200 that is not covered by the auxiliary electrode 223 overlaps with the touch electrode line 6112, and the driving transistors T1 of the first color subpixel 100 and the third color subpixel 300 do not substantially overlap with the touch electrode line 6112.

[0287] The pixel circuits of the plurality of subpixels are substantially rectangular regions and periodically arranged, the second electrodes of the first and third color subpixels almost cover the positions of the drive transistors of the corresponding pixel circuits, the second electrodes of the second color subpixels do not overlap with the corresponding drive transistors or only overlap a small area, for example, the body electrodes of the second electrodes of the first and third color subpixels can cover the drive transistors in the corresponding pixel circuits, but the body electrodes of the second electrodes of the second color subpixels do not overlap with the drive transistors in the corresponding pixel circuits, etc. Therefore, the second electrodes of the second color subpixels have a part (i.e., auxiliary electrode) extending toward the drive transistors to block them, and the touch electrode lines additionally block the parts of the drive transistors that are not covered by the auxiliary electrode, thereby further stabilizing the drive transistors of the second color subpixels.

[0288] 13A , the data writing transistor T2 or the threshold compensation transistor T3 of the second color subpixel 200 overlaps with the touch electrode line 6112. For example, as shown in FIG. 13A , the threshold compensation transistor T3 of the second color subpixel 200 overlaps with the touch electrode line 6112. For example, the touch electrode line overlaps with the data writing transistor. For example, neither the data writing transistor T2 nor the threshold compensation transistor T3 of the first color subpixel 100 and the third color subpixel 300 overlaps with the touch electrode line 6112.

[0289] For example, the data writing transistor T2 or the threshold compensation transistor T3 (channel, gate, drain) of the second color subpixel is insulated by the touch electrode line, thereby stabilizing the transistor. The threshold compensation transistor T3 is directly connected to the gate and drain of the drive transistor and directly affects the operating state of the drive transistor. Therefore, it may generally be a double-gate transistor, and the active layer between the two gates is easily affected by light and other external elements, so it needs to be insulated. In such a case, the threshold compensation transistors T3 of the first color subpixel and the third color subpixel are both insulated by their respective second electrodes. For example, the threshold compensation transistors T3 of the first color subpixel and the third color subpixel are insulated by their respective body electrodes, and the threshold compensation transistor T3 of the second color subpixel does not overlap with the body electrode of the second color subpixel.

[0290] For example, in subpixels (eg, subpixels of the second color) in which the overlapping area between the second electrode in each subpixel and the first pole of the respective storage capacitor is small, the overlapping area between the touch electrode line 6112 and the first pole of the storage capacitor is large.

[0291] For example, during the charging phase, T1 and T3 continuously charge the N1 node, and the potential of the N1 node directly affects the operating state of T1. The layer where the data line of the N1 node is located and the layer where the first electrode of the storage capacitor is located have some overlapping load. During the light-emitting phase, when the VDD signal accesses the layer where the first electrode of the storage capacitor is located, if the N1 node is not sufficiently charged, the N1 node will be disturbed by the VDD signal due to the overlapping load, causing a potential change, which will further affect the operating state of T1, and the operating state of T1 will affect the light-emitting of the OLED device. Therefore, it is necessary to ensure that the charging potential of the N1 node is sufficient during charging. The charging voltage of the N1 node is related to the states of T1 and T3. Because the thin film transistor is very sensitive to light, shining light on the thin film transistor will cause the relevant characteristics of the thin film transistor to drift. Therefore, it is necessary to protect T1 or T3 during charging, so as to ensure the charging voltage of the N1 node, maintain the stability of the operating state of T1, and avoid affecting the normal operation of the OLED device.

[0292] 13B is a schematic diagram of a positional relationship between a pixel circuit and a touch electrode line according to another example of an embodiment of the present disclosure. For example, as shown in FIG. 13B, the driving transistor in the second color subpixel 200 overlaps with the touch electrode line 6112, and the second electrode 220 of the second color subpixel 200 does not substantially overlap with the touch electrode line 6112; in the first color subpixel 100, the driving transistor overlaps with the second electrode 120 but does not substantially overlap with the touch electrode line 6112, and the second electrode 120 overlaps with the touch electrode line 6112; in the third color subpixel 300, the driving transistor overlaps with the second electrode 320 but does not substantially overlap with the touch electrode line 6112, and the second electrode 320 overlaps with the touch electrode line. The second electrode of the second color subpixel comprises a main electrode 221, a connecting electrode 222, and an auxiliary electrode 223, and in the second color subpixel 200, the connecting electrode 222 and the auxiliary electrode 223 do not substantially overlap with the second effective light-emitting area 201, the main electrode 221 does not substantially overlap with the driving transistor, and the auxiliary electrode 223 overlaps with the driving transistor.

[0293] 13B, the second electrode 220 of the second-color subpixel 200 overlaps the second effective light-emitting area 201. For example, the connection electrode 222 of the second electrode 220 is configured to be electrically connected to the second electrode of the second light-emitting control transistor T5 through a via 388 in the insulating layer.

[0294] For example, as shown in FIG. 13B, in a subpixel of a first color, at least one of the threshold compensation transistor and the data writing transistor overlaps with the second electrode and does not overlap with the touch electrode line; in a subpixel of a third color, at least one of the threshold compensation transistor and the data writing transistor overlaps with the second electrode; and in a subpixel of a second color, neither the threshold compensation transistor nor the data writing transistor overlaps with the second electrode, and the threshold compensation transistor or the data writing transistor overlaps with the touch electrode line.

[0295] For example, as shown in FIG. 13C, in the subpixel 200 of the second color, the second electrode 220 and the driving transistor both overlap with the touch electrode line 6112, in the subpixel 100 of the first color, the second electrode 120 and the driving transistor both do not substantially overlap with the touch electrode line 6112, and in the subpixel 300 of the third color, the second electrode 320 and the driving transistor both do not substantially overlap with the touch electrode line 6112.

[0296] For example, as shown in FIG. 13D , in the subpixel 200 of the second color, the driving transistor overlaps with the second electrode 220 and does not overlap with the touch electrode line 6112, and the second electrode 220 overlaps with the touch electrode line 6112; in the subpixel 100 of the first color, the driving transistor overlaps with the touch electrode line 6112 and does not overlap with the second electrode 120, and the second electrode 120 does not overlap with the touch electrode line 6112; and in the subpixel 300 of the third color, the driving transistor overlaps with the touch electrode line 6112 and does not overlap with the second electrode 320, and the second electrode 320 does not overlap with the touch electrode line 6112.

[0297] For example, as shown in FIG. 13D, in the subpixel of the first color, the second electrode does not overlap with both the driving transistor and the touch electrode line, and the driving transistor overlaps with the touch electrode line; in the subpixel of the third color, the second electrode does not overlap with the driving transistor and the touch electrode line, and the driving transistor overlaps with the touch electrode line; and in the subpixel of the second color, the second electrode overlaps with the driving transistor and the touch electrode line, and the driving transistor overlaps with the touch electrode line.

[0298] For example, the second electrode 220 of the second color subpixel 200 overlaps the drive transistor T1 and also overlaps the threshold compensation transistor T3 of the second color subpixel 200. For example, the touch electrode line 6112 overlaps a portion of the drive transistor T1 of the second color subpixel 200 that is not covered by the second electrode 220, which can further stabilize the drive transistor of the second color subpixel. In the second color subpixel, the second electrode includes a body electrode, a connecting electrode, and an auxiliary electrode, for example, in some embodiments, the auxiliary electrode is used to block some transistors (e.g., a data writing transistor or a threshold compensation transistor), and therefore the touch electrode line overlaps the auxiliary electrode of the second electrode to some extent.

[0299] For example, the touch electrode line 6112 overlaps the second electrode 220 of the second color subpixel 200. For example, the touch electrode line 6112 overlaps a portion of the threshold compensation transistor T3 of the second color subpixel 200 that is not covered by the second electrode 220. The portion of the second electrode of the second color subpixel that extends toward the threshold compensation transistor cuts off the threshold compensation transistor, and the touch electrode line additionally cuts off the portion of the threshold compensation transistor that is not covered by the second electrode, thereby further stabilizing the threshold compensation transistor of the second color subpixel, thereby ensuring the charging voltage of the N1 node, maintaining the stability of the operating state of T1, and avoiding affecting the normal operation of the OLED device.

[0300] 13D , in the second electrode 120 of the first-color subpixel 100, the main electrode 121 overlaps the first effective light-emitting area 101, but the connecting electrode 122 does not overlap the first effective light-emitting area. For example, the connecting electrode 122 is configured to be electrically connected to the second electrode of the second light-emitting control transistor T5 through a via 388 in the insulating layer.

[0301] For example, the second electrode 120 of the first color subpixel 100 does not overlap with the touch electrode line 6112. For example, the second electrode 120 of the first color subpixel 100 covers the threshold compensation transistor T3, thereby stabilizing the threshold compensation transistor of the second color subpixel, ensuring the charging voltage of the N1 node, maintaining the stability of the working state of T1, and avoiding affecting the normal operation of the OLED device.

[0302] For example, the second electrode 120 of the first color subpixel 100 does not substantially overlap with the drive transistor T1. For example, the touch electrode line 6112 overlaps with the drive transistor T1 of the first color subpixel 100, thereby stabilizing the drive transistor of the first color subpixel.

[0303] 13D , in the second electrode 320 of the third-color subpixel 300, the main electrode 321 overlaps the third effective light-emitting area, and the connecting electrode 322 does not overlap the third effective light-emitting area. For example, the connecting electrode 322 is configured to be electrically connected to the second electrode of the second light-emitting control transistor T5 through the via 388. For example, the second electrode 320 of the third-color subpixel 300 does not overlap the touch electrode line 6112. 13D , the second electrode 320 of the third color subpixel 300 does not overlap with the touch electrode line 6112. For example, the second electrode 320 of the third color subpixel 300 has a protrusion 323, which covers the threshold compensation transistor T3, thereby stabilizing the threshold compensation transistor of the third color subpixel, thereby ensuring the charging voltage of the N1 node, maintaining the stability of the working state of T1, and avoiding affecting the normal operation of the OLED device.

[0304] For example, the second electrode 320 of the third color subpixel 300 does not substantially overlap with its drive transistor T1. For example, the touch electrode line 6112 overlaps with the drive transistor T1 of the third color subpixel 300, thereby stabilizing the drive transistor of the third color subpixel.

[0305] For example, as shown in FIG. 13E, in the subpixel 200 of the second color, neither the second electrode 220 nor the driving transistor substantially overlaps with the touch electrode line 6112, in the subpixel 100 of the first color, both the second electrode 120 and the driving transistor overlap with the touch electrode line 6112, and in the subpixel 300 of the third color, both the second electrode 320 and the driving transistor overlap with the touch electrode line 6112.

[0306] FIG. 14A is a schematic diagram illustrating deposition of an emitting layer using an FMM. A pixel definition layer 400 having an opening 401 is formed on a base substrate 10. A photospacer 700 is provided on the pixel definition layer 400 to support the FMM 104. The FMM 104 has through-holes 1040, which may be holes formed by etching. Deposition materials are deposited on the base substrate 10 from bottom to top through the through-holes 1040. To prevent damage to the film layers on the base substrate 10 due to the FMM, a photospacer (PS) is provided on the base substrate 10 to support the FMM during deposition. During deposition, the base substrate 10 is placed above the FMM 104, and the photospacer 700 is in close contact with the FMM. To improve the accuracy of the deposition position, a strong magnetic Gaussian plate 105 is typically placed above the base substrate 10 to adsorb the FMM 104 and ensure close contact between the FMM 104 and the base substrate 10. The arrows in FIG. 14A indicate the direction of gas flow.

[0307] Since the FMM is made of a metal material, it is likely to damage materials deposited on the base substrate 10 when it comes into contact with the base substrate 10. Therefore, when designing an OLED rear panel, the photospacer 700 serves as a support when the FMM 104 is in close contact with the base substrate 10, and prevents the FMM 104 from damaging the surface of the base substrate 10. The photospacers 700 may be distributed in an array across the entire panel, but are not limited thereto.

[0308] For example, when the photospacer 700 is used to support an FMM, no light-emitting layer may be deposited on the top of the photospacer 700. For example, each photospacer 700 includes a first region 701 and a ring-shaped second region 702 surrounding the first region 701, the first region 701 being the central region of the photospacer 700, and the area ratio of the first region 701 to the photospacer 700 when orthogonally projected on the base substrate 10 is 1 / 4 or less. For example, the area ratio of the first region 701 to the photospacer 700 when orthogonally projected on the base substrate 10 is 1 / 3 to 1 / 4, and the top of the photospacer 700 is within the first region 701.

[0309] For example, within the display area, the first region 701 of at least one photospacer does not overlap with the first color light-emitting layer, the second color light-emitting layer, and the third color light-emitting layer. For example, the first region 701 of at least one photospacer 700 does not overlap with the light-emitting layers. For example, the first region 701 of at least one photospacer 700 overlaps with only one color light-emitting layer, for example, only the green light-emitting layer. For example, the first region 701 of at least one photospacer 700 overlaps with only two color light-emitting layers, for example, only the red light-emitting layer and the blue light-emitting layer.

[0310] For example, a photospacer may be disposed between a first-color subpixel and a second-color subpixel. If the photospacer does not overlap with an emissive layer on top of the photospacer, lateral crosstalk or color transfer can be further reduced. For example, when depositing the emissive layer of a first-color subpixel, if a portion of the photospacer near the opening for forming the pixel-defining layer of the second-color subpixel supports an FMM, the first-color emissive layer is not deposited in that portion. When depositing the emissive layer of a third-color subpixel, if a portion of the photospacer near the opening for forming the pixel-defining layer of the first-color subpixel supports an FMM, the third-color emissive layer is not deposited in that portion. When depositing the emissive layer of a second-color subpixel, the second-color emissive layer is formed in the portions on both sides of the photospacer, but not in other regions. Because the openings do not overlap, the emissive layers of each color in the central region (e.g., the first region) of the photospacer do not substantially overlap, or only slightly overlap (e.g., less than 30%) due to process variations or the like.

[0311] For example, the orthogonal projection of the photospacer on the base substrate is selected from at least one of a rounded rectangle, an ellipse, and a circle. For example, the orthogonal projection of the photospacer on the base substrate is an axially symmetrical pattern. For example, the photospacer is located at the intersection of portions of the pixel defining layer in different extension directions (e.g., the intersection of portions covering the pixel defining layer in different extension directions), and has two symmetry axes that are approximately parallel to the two extension directions of the pixel defining layer where it is located. For example, the size range of the orthogonal projection of the photospacer on the base substrate along the long axis is 20 to 50 μm. For example, the size range of the orthogonal projection of the photospacer on the base substrate along the short axis is 12 to 30 μm. For example, the range of the orthogonal projection of the photospacer on the base substrate is smaller than 48 μm x 26 μm. For example, the range of the orthogonal projection of the photospacer on the base substrate is smaller than 41 μm x 25 μm. For example, the range of the orthogonal projection of the photospacer on the base substrate is smaller than 33 μm x 20 μm. For example, the range of the orthogonal projection of the photospacer on the base substrate is smaller than 25 μm x 15 μm.

[0312] 14B is a schematic diagram showing the positional relationship between the pixel definition layer and the photospacer 700. As shown in FIG. 14B, for example, the distance from the boundary of the photospacer 700 to the edge of the opening 401 in the pixel definition layer 400 is 6.5 μm or more.

[0313] For example, the photospacer 700 and the pixel defining layer 400 may be an integral structure with no clear boundary. For example, the boundary between the photospacer 700 and the pixel defining layer 400 may be the position where an inflection point appears on the slope angle curve. For example, the slope angle may decrease from the edges of the openings located on both sides of the center line of the pixel defining layer in the extension direction toward the center line of the pixel defining layer in the extension direction. On a substantially flat surface of the pixel defining layer, the slope angle is approximately 0° to 5°. On a substantially flat surface of the pixel defining layer, the slope angle tends to increase toward the photospacer boundary. For example, at the photospacer boundary, the slope angle increases from approximately 0° to approximately 10° (e.g., 5° to 10°), or even 10° or more. The slope angle may be the included angle between a circumscribing line drawn at the measurement point and a plane including the surface of the closest second electrode (e.g., anode) away from the base substrate of the main electrode. For example, the thickness of the portion of the pixel defining layer 400 where the photospacer 700 is not provided is the first thickness (e.g., the average thickness of a substantially flat portion), the maximum thickness of the portion of the pixel defining layer 400 where the photospacer 700 is provided is the second thickness, and with respect to the boundary between the photospacer 700 and the pixel defining layer 400, the portion from the surface of the pixel defining layer 400 closer to the base substrate to the first thickness is the pixel defining layer 400 itself, and the portion beyond the first thickness to the second thickness is the photospacer portion.

[0314] For example, the thickness of the pixel defining layer 400 where the photospacers 700 are not provided is the first thickness (e.g., the average thickness of the substantially flat portion), which is 0.8 to 1.8 μm. For example, the thickness of the pixel defining layer 400 where the photospacers 700 are not provided is the first thickness (e.g., the average thickness of the substantially flat portion), which is 1.1 μm or more. For example, the thickness of the pixel defining layer 400 where the photospacers 700 are not provided is the first thickness (e.g., the average thickness of the substantially flat portion), which is less than 3 μm. This is because the pixel defining layer 400 functions as a barrier dam for the package organic layer, and if the thickness is too thin, the organic layer is likely to overflow, which will affect the package effect. If the first thickness of the pixel defining layer 400 is too thick, the angle of light output will be limited, which will likely affect the luminous efficiency.

[0315] For example, the tilt angle of the pixel definition layer near the opening is 15° to 25°. For example, the tilt angle of the pixel definition layer near the opening is 17° to 21°. For example, the tilt angle of the pixel definition layer near the opening is 18° to 20°.

[0316] For example, as shown in FIGS. 15A to 15G , at least one embodiment of the present disclosure includes a base substrate including a display region and a peripheral region located around the display region; a plurality of first-color subpixels located in the display region and arranged along a first direction to form a plurality of first-color subpixel rows, the plurality of first-color subpixel rows being arranged along a second direction, wherein adjacent first-color subpixel rows are shifted from each other along the first direction; a plurality of second-color subpixels located in the display region and arranged in an array along the first direction and the second dire...

Claims

1. A display panel, a base substrate including a display area and a peripheral area located around the display area; a plurality of first-color subpixels located in the display area and arranged along a first direction to form a plurality of first-color subpixel rows, the plurality of first-color subpixel rows being arranged along a second direction, and adjacent first-color subpixel rows being shifted from each other along the first direction; a plurality of second-color sub-pixels located in the display region and arranged in an array along the first direction and the second direction, wherein four second-color sub-pixels surround one first-color sub-pixel; a pixel definition layer located in the display region and the peripheral region, the pixel definition layer having a plurality of openings to define effective light-emitting regions of a plurality of sub-pixels, the plurality of first color sub-pixels having a plurality of first effective light-emitting regions, the plurality of second color sub-pixels having a plurality of second effective light-emitting regions, and an area of ​​one of the second effective light-emitting regions being smaller than an area of ​​one of the first effective light-emitting regions; the plurality of first color sub-pixels comprise a plurality of first color light-emitting layers located in corresponding openings and on the pixel defining layer surrounding the corresponding openings, the plurality of second color sub-pixels comprise a plurality of second color light-emitting layers located in corresponding openings and on the pixel defining layer surrounding the corresponding openings, the plurality of first color light-emitting layers in the plurality of first color sub-pixels being spaced apart from one another, and the plurality of second color light-emitting layers in the plurality of second color sub-pixels being spaced apart from one another; an area ratio of the first color light emitting layer and the first effective light emitting region corresponding to the same first color subpixel, when orthogonally projected on the base substrate, is a first area ratio; an area ratio of the second color light emitting layer and the second effective light emitting region corresponding to the same second color subpixel, when orthogonally projected on the base substrate, is a second area ratio, the first area ratio being smaller than the second area ratio; at least a part of the second effective light-emitting regions has a length direction and a width direction, the length direction is an extension direction of a line connecting two farthest points in the second effective light-emitting regions, and the width direction and the length direction of the same second effective light-emitting region are approximately perpendicular to each other; a display panel in which, for the same second effective light-emitting region, a difference between the maximum size of the second color light-emitting layer and the maximum size of the second effective light-emitting region along the length direction is a first difference, and a difference between the maximum size of the second color light-emitting layer and the maximum size of the second effective light-emitting region along the width direction is a second difference, the first difference being smaller than the second difference.

2. 2. The display panel according to claim 1, wherein the first area ratio and the second area ratio are in the range of 1 to 15.

3. 3. The display panel according to claim 1, wherein the first area ratio is 2 to 6, and the second area ratio is 4 to 9.

4. A display panel described in any of claims 1 to 3, wherein, for the same second effective light-emitting area, along the length direction, the ratio between the maximum size of the second color light-emitting layer corresponding to the second effective light-emitting area and the maximum size of the second effective light-emitting area is a first ratio, and along the width direction, the ratio between the maximum size of the second color light-emitting layer corresponding to the second effective light-emitting area and the maximum size of the second effective light-emitting area is a second ratio, and the first ratio is smaller than the second ratio.

5. 5. The display panel of claim 4, wherein the ratio of the maximum lengthwise size of the corresponding second effective light-emitting region of the second color light-emitting layer to the maximum widthwise size of the corresponding second effective light-emitting region of the second color light-emitting layer is smaller than the ratio of the maximum lengthwise size of the second effective light-emitting region to the maximum widthwise size of the second effective light-emitting region.

6. the plurality of third color subpixels are located in the display area, the plurality of first color subpixels and the plurality of third color subpixels are alternately arranged along the first direction and the second direction, the plurality of first color subpixels and the plurality of second color subpixels are alternately arranged along a third direction to form a first group, the plurality of third color subpixels and the plurality of second color subpixels are alternately arranged along the third direction to form a second group, the first group and the second group are alternately distributed along a fourth direction, and the third direction and the fourth direction intersect with both the first direction and the second direction; the plurality of third color sub-pixels include a plurality of third effective light-emitting regions, an area of ​​one of the second effective light-emitting regions being smaller than an area of ​​one of the third effective light-emitting regions; the plurality of third color sub-pixels include a plurality of third color light-emitting layers located within corresponding ones of the openings and on the pixel defining layer surrounding the corresponding openings; and the plurality of third color light-emitting layers included in the plurality of third color sub-pixels are spaced apart from each other; A display panel described in any one of claims 1 to 5, wherein the area ratio of the third color light-emitting layer and the third effective light-emitting region corresponding to the same third color sub-pixel when projected on the base substrate is a third area ratio, and the third area ratio is smaller than the second area ratio.

7. an area of ​​a first effective light-emitting region of one of the first color sub-pixels is smaller than an area of ​​a third effective light-emitting region of one of the third color sub-pixels; The display panel according to claim 6 , wherein the first area ratio is greater than the third area ratio.

8. 8. The display panel according to claim 6, wherein the third area ratio is in the range of 1 to 15.

9. 9. The display panel according to claim 6, wherein the third area ratio is in the range of 1.5 to 7.

10. each of the sub-pixels further comprising a first electrode and a second electrode located on a side of the light-emitting layer and the pixel defining layer facing the base substrate; 10. The display panel of claim 6, wherein the second electrode of each of the subpixels comprises a main electrode extending from the center of the effective light-emitting area to an edge thereof, and the size of an overlapping portion between the main electrode and the pixel definition layer is equal to or smaller than the size of an overlapping portion between the light-emitting layer and the pixel definition layer.

11. the plurality of third color subpixels are located in the display area, the plurality of first color subpixels and the plurality of third color subpixels are alternately arranged along the first direction and the second direction, the plurality of first color subpixels and the plurality of second color subpixels are alternately arranged along a third direction to form a first group, the plurality of third color subpixels and the plurality of second color subpixels are alternately arranged along the third direction to form a second group, the first group and the second group are alternately distributed along a fourth direction, and the third direction and the fourth direction intersect with both the first direction and the second direction; the plurality of third color sub-pixels comprise a plurality of third effective light-emitting regions, the plurality of third color sub-pixels comprise a plurality of third color light-emitting layers located within corresponding ones of the openings and on the pixel defining layer surrounding the corresponding openings, and the plurality of third color light-emitting layers included in the plurality of third color sub-pixels are spaced apart from one another; a package layer located in the display area and the peripheral area; a first touch electrode layer located on a side of the package layer away from the base substrate, the first touch electrode layer including a plurality of first touch electrodes extending along the first direction and a plurality of second touch electrodes extending along the second direction, each of the first touch electrodes including a plurality of first touch electrode units, each of the second touch electrodes including a plurality of second touch electrode units, the first touch electrode layer including a plurality of touch electrode lines crossing each other to form a plurality of first meshes, and each of the first touch electrode units and each of the second touch electrode units including a plurality of connected first meshes; a second touch electrode layer including a plurality of connection bridges and a plurality of bridge connection lines crossing each other to form a second mesh, each of the connection bridges having a plurality of interconnected second meshes, and adjacent second touch electrode units being electrically connected via at least one connection bridge; a touch insulating layer located between the first touch electrode layer and the second touch electrode layer, wherein the second touch electrode unit is electrically connected to the connection bridge by passing through a via in the touch insulating layer; The display panel according to claim 1 , wherein the orthogonal projection of the plurality of touch electrode lines located in the display area on the base substrate is within the orthogonal projection of the pixel definition layer on the base substrate.

12. 12. The display panel of claim 11, wherein in the display region, the orthogonal projection of the effective light-emitting region of each of the subpixels on the base substrate is within the orthogonal projection of each of the first meshes on the base substrate, and the ratio of the area of ​​the opening of the first mesh corresponding to the subpixel of the first color to the area of ​​the first effective light-emitting region and the ratio of the area of ​​the opening of the first mesh corresponding to the subpixel of the third color to the area of ​​the third effective light-emitting region are both smaller than the ratio of the area of ​​the opening of the first mesh corresponding to the subpixel of the second color to the area of ​​the second effective light-emitting region.

13. each of the sub-pixels further comprising a first electrode, a second electrode located on a side of the light-emitting layer and the pixel definition layer facing the base substrate, and a pixel circuit located between the second electrode and the base substrate and including a drive transistor; At least one of the second electrodes of the first color subpixels, the second color subpixels, and the second electrodes of the third color subpixels overlaps with the touch electrode line; and / or The display panel according to claim 11 , wherein at least one driving transistor of the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel overlaps with the touch electrode line.

14. the driving transistor of the second color subpixel overlaps with the touch electrode line, and the second electrode of the second color subpixel does not substantially overlap with the touch electrode line; In the first color subpixel, the driving transistor overlaps the second electrode and does not substantially overlap the touch electrode line, and the second electrode overlaps the touch electrode line; 14. The display panel of claim 13, wherein in the subpixel of the third color, the driving transistor overlaps the second electrode and does not substantially overlap the touch electrode line, and the second electrode overlaps the touch electrode line.

15. In the second color subpixel, the second electrode and the driving transistor overlap with the touch electrode line; In the first color subpixel, neither the second electrode nor the driving transistor substantially overlaps with the touch electrode line; The display panel of claim 13 , wherein in the third color sub-pixel, neither the second electrode nor the driving transistor substantially overlaps with the touch electrode line.

16. In the second color subpixel, neither the second electrode nor the driving transistor substantially overlaps with the touch electrode line; In the first color subpixel, the second electrode and the driving transistor overlap with the touch electrode line; The display panel of claim 13 , wherein in the sub-pixel of the third color, the second electrode and the driving transistor overlap with the touch electrode line.

17. 14. The display panel of claim 13, wherein in the subpixels of the first color, the second electrode does not overlap with either the drive transistor or the touch electrode line, and the drive transistor overlaps with the touch electrode line; in the subpixels of the third color, the second electrode does not overlap with either the drive transistor or the touch electrode line, and the drive transistor overlaps with the touch electrode line; and in the subpixels of the second color, the second electrode overlaps with both the drive transistor and the touch electrode line, and the drive transistor overlaps with the touch electrode line.

18. the pixel circuit of each of the sub-pixels further comprises a data writing transistor and a threshold compensation transistor; the data write transistor has a first pole electrically connected to the first pole of the drive transistor, a second pole electrically connected to a data line to receive a data signal, and a gate electrically connected to a scanning signal line to receive a scanning signal; the threshold compensation transistor has a first pole electrically connected to the second pole of the driving transistor, a second pole electrically connected to the gate of the driving transistor, and a gate electrically connected to the scanning signal line to receive a compensation control signal; 14. The display panel of claim 13, wherein the data writing transistor of the pixel circuit of at least one of the first color subpixel, the second color subpixel, and the third color subpixel overlaps with the touch electrode line, and / or the threshold compensation transistor of the pixel circuit of at least one of the first color subpixel, the second color subpixel, and the third color subpixel overlaps with the touch electrode line.

19. 19. The display panel of claim 18, wherein in the subpixels of the first color, the second electrode overlaps with at least one of the threshold compensation transistor and the data writing transistor, and neither the threshold compensation transistor nor the data writing transistor overlaps with the touch electrode line; in the subpixels of the third color, the second electrode overlaps with at least one of the threshold compensation transistor and the data writing transistor, and neither the threshold compensation transistor nor the data writing transistor overlaps with the touch electrode line; and in the subpixels of the second color, the second electrode overlaps with neither the threshold compensation transistor nor the data writing transistor, and at least one of the threshold compensation transistor and the data writing transistor overlaps with the touch electrode line.

20. 19. The display panel of claim 18, wherein in the first color subpixel, the second electrode overlaps with at least one of the threshold compensation transistor and the data writing transistor, in the third color subpixel, the second electrode overlaps with at least one of the threshold compensation transistor and the data writing transistor, and in the second color subpixel, the second electrode overlaps with the threshold compensation transistor and the data writing transistor overlaps with the touch electrode line.

21. A display device comprising the display panel according to any one of claims 1 to 20.

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