Display panel and display device

Abstract

The invention discloses a display panel and a display device, relates to the technical field of display, and can improve the sawtooth feeling of a display picture of a special-shaped display boundary. The display panel includes: a substrate layer; a pixel unit is arranged on one side of the substrate layer, the pixel unit comprises a first sub-pixel, a second sub-pixel and a third sub-pixel, and one pixel unit corresponds to one virtual rectangle; the area proportion of the light-emitting layer in the virtual rectangle is greater than or equal to 80%; connecting lines of geometric centers of all pixel openings in one pixel unit form a virtual triangle, an included angle between a connecting line of geometric centers of pixel openings of the first sub-pixel and the third sub-pixel and a long side of the virtual rectangle is a first included angle, and the first included angle is the smallest included angle between each side of the virtual triangle and the long side of the virtual rectangle; the second overlapping area and the third overlapping area are smaller than or equal to the first overlapping area; a shape of at least one of the pixel openings of the first sub-pixel, the second sub-pixel, and the third sub-pixel includes at least a partial curvilinear edge.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] Traditional display screens are usually rectangular. With the continuous development of display technology, the application of display screens in smart products or wearable smart devices has become increasingly widespread, and the demand for special-shaped display panels has gradually increased, such as the circular display screen of smart watches, the special-shaped screen with holes or grooves of smart phones, AR (augmented reality) display screens and VR (virtual display) display screens, etc. However, since the display border of the special-shaped display screen is also special-shaped, that is, the display border is non-linear, the display screen is prone to jaggedness on the special-shaped display border, affecting the display effect. Summary of the invention

[0003] The embodiments of the present application provide a display panel and a display device, which can improve the jagged feeling of a display picture at a display boundary of a special-shaped display panel and improve the display effect.

[0004] According to a first aspect of an embodiment of the present application, a display panel is provided, comprising:

[0005] substrate layer;

[0006] A plurality of pixel units are arranged on one side of the substrate layer, and the pixel unit includes a first sub-pixel, a second sub-pixel and a third sub-pixel, and the first sub-pixel, the second sub-pixel and the third sub-pixel respectively include a first light-emitting layer, a second light-emitting layer and a third light-emitting layer, and the first light-emitting layer, the second light-emitting layer and the third light-emitting layer are used to emit light of different colors;

[0007] The areas of the orthographic projections of the first light-emitting layer, the second light-emitting layer and the third light-emitting layer on the substrate layer within the virtual rectangle are respectively the first area, the second area and the third area, and the ratios of the first area, the second area and the third area to the orthographic projections of the corresponding first light-emitting layer, the second light-emitting layer and the third light-emitting layer on the substrate layer are both greater than or equal to 80%;

[0008] In one of the pixel units, the orthographic projections of the pixel openings of the first sub-pixel, the second sub-pixel and the third sub-pixel on the substrate layer are all located within the virtual rectangle, and a line connecting the geometric centers of the orthographic projections of the pixel openings of the first sub-pixel, the second sub-pixel and the third sub-pixel on the substrate layer forms a virtual triangle, and an angle between a line connecting the geometric centers of the orthographic projections of the pixel openings of the first sub-pixel and the third sub-pixel on the substrate layer and a long side of the virtual rectangle is a first angle, and the first angle is the smallest angle among the angles formed by the sides of the virtual triangle and the long side of the virtual rectangle;

[0009] In one of the pixel units, an overlapping area of ​​the orthographic projections of the first light-emitting layer and the third light-emitting layer on the substrate layer is a first overlapping area, an overlapping area of ​​the orthographic projections of the first light-emitting layer and the second light-emitting layer on the substrate layer is a second overlapping area, an overlapping area of ​​the orthographic projections of the second light-emitting layer and the third light-emitting layer on the substrate layer is a third overlapping area, and the second overlapping area and the third overlapping area are less than or equal to the first overlapping area;

[0010] A shape of at least one of the pixel openings of the first sub-pixel, the second sub-pixel, and the third sub-pixel projected on the substrate layer includes at least a portion of a curved edge.

[0011] In some embodiments, within one of the pixel units, the minimum distance between the pixel opening of the first sub-pixel and the pixel opening of the third sub-pixel is a first distance, the minimum distance between the pixel opening of the first sub-pixel and the pixel opening of the second sub-pixel is a second distance, and the minimum distance between the pixel opening of the second sub-pixel and the pixel opening of the third sub-pixel is a third distance;

[0012] The first distance is less than or equal to the second distance, and the first distance is less than or equal to the third distance.

[0013] In some embodiments, the second distance is greater than the third distance; and / or,

[0014] The second overlapping area is smaller than or equal to the third overlapping area.

[0015] In some embodiments, a diagonal line of the virtual rectangle passes through the geometric center of the orthographic projection of the pixel openings of the first sub-pixel and the second sub-pixel on the substrate layer; and / or,

[0016] Another diagonal line of the virtual rectangle does not overlap with the pixel opening of the first sub-pixel and the pixel opening of the second sub-pixel.

[0017] In some embodiments, the first sub-pixels are arranged continuously along a first direction, the first sub-pixels and the third sub-pixels are arranged alternately along a second direction, and the first sub-pixels and the second sub-pixels are arranged alternately along a third direction;

[0018] The first direction intersects with the second direction, the first direction intersects with the third direction, and the second direction intersects with the third direction.

[0019] In some embodiments, the minimum distance between pixel openings of two adjacent first sub-pixels belonging to different pixel units is a fourth distance;

[0020] The minimum distance between the pixel openings of two adjacent second sub-pixels belonging to different pixel units is a fifth distance;

[0021] The minimum distance between the pixel openings of two adjacent third sub-pixels belonging to different pixel units is a sixth distance;

[0022] The fourth distance is less than or equal to the fifth distance, and the fourth distance is less than or equal to the sixth distance.

[0023] In some embodiments, the first direction is perpendicular to the second direction;

[0024] An angle between the first direction and the third direction includes an acute angle.

[0025] In some embodiments, the first angle is less than or equal to 30°; and / or,

[0026] The virtual triangle comprises an acute triangle; and / or,

[0027] The ratio of the first overlapping area to the orthographic projection area of ​​the first light-emitting layer on the substrate layer is less than or equal to 10%.

[0028] In some embodiments, the first angle is equal to 0°.

[0029] In some embodiments, the orthographic projection area of ​​the pixel opening of the third sub-pixel on the substrate layer is smaller than the orthographic projection area of ​​the pixel opening of the first sub-pixel on the substrate layer;

[0030] The orthographic projection area of ​​the pixel opening of the third sub-pixel on the substrate layer is smaller than the orthographic projection area of ​​the pixel opening of the second sub-pixel on the substrate layer.

[0031] In some embodiments, an orthographic projection area of ​​a pixel opening of the second sub-pixel on the substrate layer is smaller than an orthographic projection area of ​​a pixel opening of the first sub-pixel on the substrate layer.

[0032] In some embodiments, the pixel unit further includes a fourth sub-pixel, and an orthographic projection of a pixel opening of the fourth sub-pixel on the substrate layer is located within the virtual rectangle;

[0033] In one of the pixel units, the geometric centers of the pixel openings of the first sub-pixel, the second sub-pixel, the third sub-pixel and the fourth sub-pixel are connected in sequence on the substrate layer to form a virtual quadrilateral.

[0034] In some embodiments, the fourth sub-pixel includes a fourth light-emitting layer, and the fourth light-emitting layer and the third light-emitting layer emit light of the same color.

[0035] In some embodiments, the orthographic projection area of ​​the pixel opening of the fourth sub-pixel on the substrate layer is smaller than the orthographic projection area of ​​the pixel opening of the first sub-pixel on the substrate layer;

[0036] An orthographic projection area of ​​a pixel opening of the fourth sub-pixel on the substrate layer is smaller than an orthographic projection area of ​​a pixel opening of the second sub-pixel on the substrate layer.

[0037] In some embodiments, an orthographic projection area of ​​a pixel opening of the fourth sub-pixel on the substrate layer is smaller than or equal to an orthographic projection area of ​​a pixel opening of the third sub-pixel on the substrate layer.

[0038] In some embodiments, at least two sides of the virtual quadrilateral have different lengths; and / or,

[0039] At least two sides of the virtual quadrilateral have the same length.

[0040] In some embodiments, within one of the pixel units, a line connecting geometric centers of orthographic projections of the pixel opening of the first sub-pixel and the pixel opening of the second sub-pixel on the substrate layer is a first line, and a line connecting geometric centers of orthographic projections of the pixel opening of the third sub-pixel and the pixel opening of the fourth sub-pixel on the substrate layer is a second line;

[0041] In one of the pixel units, the first connecting line intersects with the second connecting line.

[0042] In some embodiments, within one of the pixel units, the first connection line is perpendicular to the second connection line; and / or,

[0043] In one of the pixel units, the geometric centers of the orthographic projections of the pixel opening of the third sub-pixel and the pixel opening of the fourth sub-pixel on the substrate layer are symmetrical about the second connecting line.

[0044] In some embodiments, the orthographic projection of the first light-emitting layer on the substrate layer is tangent to the orthographic projection of the second light-emitting layer on the substrate layer; and / or,

[0045] The orthographic projection of the first light-emitting layer on the substrate layer is tangent to the orthographic projection of the third light-emitting layer on the substrate layer; and / or,

[0046] The orthographic projection of the second light-emitting layer on the substrate layer is tangent to the orthographic projection of the third light-emitting layer on the substrate layer; and / or

[0047] The orthographic projection of the first light-emitting layer on the substrate layer is tangent to at least one side of the virtual rectangle; and / or,

[0048] The orthographic projection of the second light-emitting layer on the substrate layer is tangent to at least one side of the virtual rectangle; and / or,

[0049] The orthographic projection of the third light-emitting layer on the substrate layer is tangent to at least one side of the virtual rectangle.

[0050] In some embodiments, the light-emitting layers of at least two sub-pixels emitting light of the same color are prepared through the same mask opening of an evaporation mask, and the light-emitting layers include the first light-emitting layer, the second light-emitting layer, and the third light-emitting layer.

[0051] In some embodiments, the light-emitting layers of at least four sub-pixels emitting light of the same color are prepared through the same mask opening of the evaporation mask.

[0052] In some embodiments, the light-emitting layers of at least two adjacent first sub-pixels belonging to at least two of the pixel units are prepared through the same first mask opening of the evaporation mask;

[0053] The light-emitting layers of at least two adjacent second sub-pixels belonging to at least two of the pixel units are prepared through the same second mask opening of the evaporation mask.

[0054] In some embodiments, the light-emitting layers of at least four adjacent first sub-pixels belonging to at least four of the pixel units are prepared through the same first mask opening of the evaporation mask;

[0055] The light-emitting layers of at least two adjacent second sub-pixels belonging to at least two of the pixel units are prepared through the same second mask opening of the evaporation mask;

[0056] The light-emitting layers of at least two adjacent third sub-pixels belonging to at least two of the pixel units are prepared through the same third mask opening of the evaporation mask.

[0057] In some embodiments, the light-emitting layers of at least four adjacent first sub-pixels belonging to at least four of the pixel units are prepared through the same first mask opening of the evaporation mask;

[0058] The light-emitting layers of at least four adjacent second sub-pixels belonging to at least four of the pixel units are prepared through the same second mask opening of the evaporation mask;

[0059] The light-emitting layers of at least two adjacent third sub-pixels belonging to at least two of the pixel units are prepared through the same third mask opening of the evaporation mask.

[0060] In some embodiments, the light-emitting layers of two adjacent first sub-pixels belonging to two pixel units are prepared through the same first mask opening of the evaporation mask;

[0061] The light-emitting layers of two adjacent second sub-pixels belonging to two of the pixel units are prepared through the same second mask opening of the evaporation mask;

[0062] A light-emitting layer of the third sub-pixel is prepared through a third mask opening of the evaporation mask.

[0063] In some embodiments, the mask openings of the evaporation mask corresponding to at least two of the pixel openings within the virtual rectangle are tangent to each other.

[0064] In some embodiments, the mask opening of the evaporation mask corresponding to at least one of the pixel openings within the virtual rectangle is tangent to at least one side of the virtual rectangle.

[0065] In some embodiments, the boundary of the display area includes at least one curved boundary, and the curved edge is arranged toward the curved boundary.

[0066] In some embodiments, the display area includes a first area and a second area, and the second area is arranged on a side of the first area away from the curved boundary;

[0067] The curved line boundary coincides with at least a portion of a boundary of the first region;

[0068] An orthographic projection shape of the pixel opening of the first region on the substrate layer includes the curved edge.

[0069] In some embodiments, the shape of the pixel opening in the first region is the same as the shape of the pixel opening in the second region; and / or,

[0070] The curved edge includes an arc edge; and / or,

[0071] The curved line boundary includes an arc boundary; and / or,

[0072] The shape of the pixel opening of the first area includes a right-angle edge connected to the curved edge.

[0073] In some embodiments, the curvature of the curved edge is the same as the curvature of the curved border.

[0074] In some embodiments, the curvature direction of the curved edge is the same as the curvature direction of the curved boundary.

[0075] In some embodiments, the shape of the pixel openings in the first region includes a circle and an ellipse.

[0076] According to a second aspect of an embodiment of the present application, a display device is provided, including:

[0077] A display panel as described in the first aspect.

[0078] The display panel provided by the embodiment of the present application is configured such that the shape of the positive projection of at least one of the first pixel opening, the second pixel opening, and the third pixel opening on the substrate layer includes a curved edge. For the irregular display boundary, the curved edge can be configured so that the edge of the light emitted by the sub-pixel of the irregular display boundary is a smooth curved boundary, which can improve or even eliminate the jagged feeling of the display screen of the irregular display boundary, and can improve the display effect of the display panel. By configuring the ratio of the first area, the second area, and the third area to the area of ​​the positive projection of the first light-emitting layer, the second light-emitting layer, and the third light-emitting layer on the substrate layer to be greater than 80%, the area encircled by the virtual rectangle corresponding to each pixel unit has an area of ​​the light-emitting layer of more than 80% of each sub-pixel, which can ensure that the pixel opening in the virtual rectangle corresponding to the pixel unit fully fills the light-emitting layer, so as to ensure the effective light-emitting area of ​​each sub-pixel, and further ensure the light-emitting effect of the sub-pixel. Based on the fact that the first angle is the smallest angle among the angles formed by the sides of the virtual triangle and the long side of the virtual rectangle, the first sub-pixel and the third sub-pixel can be arranged alternately along the long side of the virtual rectangle, so that the arrangement of the sub-pixels on the long side of the virtual rectangle can be more compact, the distance between the first light-emitting layer and the third light-emitting layer is the shortest, and the overlapping area of ​​the light-emitting layers is also the largest, or the overlapping areas of the light-emitting layers of adjacent sub-pixels are equal, which can improve the compactness of the pixel arrangement of the display panel, thereby improving the resolution. The first sub-pixel and the third sub-pixel are arranged alternately on the long side of the virtual rectangle, and the first geometric center, the second geometric center and the third geometric center are connected in sequence to form a virtual triangle. Based on this arrangement of the seed pixels, on the basis of the setting of the curved edge, the light-emitting boundary in the virtual rectangle corresponding to the pixel unit can be further smoothed, and the jagged feeling of the display screen of the irregular display boundary can be further improved at the structural unit level of the pixel unit, and the display effect of the display panel can be further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0079] Figure 1 A schematic partial cross-sectional structure diagram of a display panel provided in an embodiment of the present application;

[0080] Figure 2 A schematic diagram of a local arrangement of sub-pixels of a display panel provided in an embodiment of the present application;

[0081] Figure 3 A schematic diagram of pixel arrangement of a special-shaped display border provided in an embodiment of the present application;

[0082] Figure 4 A schematic diagram of a partial arrangement of sub-pixels of another display panel provided in an embodiment of the present application;

[0083] Figure 5 A schematic diagram of a partial arrangement of sub-pixels of another display panel provided in an embodiment of the present application;

[0084] Figure 6 A schematic diagram of the arrangement of sub-pixels in a pixel unit provided in an embodiment of the present application;

[0085] Figure 7 A schematic diagram of a partial arrangement of sub-pixels of another display panel provided in an embodiment of the present application;

[0086] Figure 8 A schematic diagram of a local arrangement of sub-pixels of a display panel provided in an embodiment of the present application;

[0087] Fig. 9 A schematic partial position relationship diagram of a sub-pixel of a display panel and a mask opening of an evaporation mask provided in an embodiment of the present application;

[0088] Fig.10 A schematic partial structural diagram of a first evaporation mask provided in an embodiment of the present application;

[0089] Fig.11 A schematic partial structural diagram of a second evaporation mask provided in an embodiment of the present application;

[0090] Fig.12 A schematic partial structural diagram of a third evaporation mask provided in an embodiment of the present application;

[0091] Fig.13 A schematic diagram of a local arrangement of sub-pixels of a display panel provided in an embodiment of the present application;

[0092] Fig.14 A schematic partial structural diagram of another first evaporation mask provided in an embodiment of the present application;

[0093] Fig.15 A schematic partial structural diagram of another second evaporation mask provided in an embodiment of the present application;

[0094] Fig.16 A schematic partial structural diagram of another third evaporation mask provided in an embodiment of the present application;

[0095] Fig.17 A schematic diagram of a partial arrangement of sub-pixels of another display panel provided in an embodiment of the present application;

[0096] Fig.18 A schematic partial structural diagram of an evaporation mask provided in an embodiment of the present application;

[0097] Fig.19 A schematic diagram of a partial arrangement of sub-pixels of another display panel provided in an embodiment of the present application;

[0098] Fig. 20A schematic diagram of a partial arrangement of sub-pixels of another display panel provided in an embodiment of the present application;

[0099] Fig.21 A schematic partial structural diagram of another evaporation mask provided in an embodiment of the present application;

[0100] Fig. 22 A schematic diagram of a local arrangement of sub-pixels of a display panel provided in an embodiment of the present application;

[0101] Fig.23 A schematic partial structural diagram of another evaporation mask provided in an embodiment of the present application;

[0102] Fig.24 A schematic diagram of a partial arrangement of sub-pixels of another display panel provided in an embodiment of the present application;

[0103] Fig.25 A schematic partial structural diagram of another first evaporation mask provided in an embodiment of the present application;

[0104] Fig.26 A schematic partial structural diagram of another second evaporation mask provided in an embodiment of the present application;

[0105] Fig. 27 A schematic partial structural diagram of another second evaporation mask provided in an embodiment of the present application;

[0106] Fig.28 A schematic partial structural diagram of another third evaporation mask provided in an embodiment of the present application;

[0107] Fig.29 A schematic structural diagram of a display panel provided in an embodiment of the present application;

[0108] Fig.30 A schematic structural diagram of another display panel provided in an embodiment of the present application;

[0109] Fig.31 A schematic partial structural diagram of a display area of ​​a display panel provided in an embodiment of the present application;

[0110] Fig.32 A schematic partial structural diagram of another display area of ​​a display panel provided in an embodiment of the present application;

[0111] Fig.33 A schematic partial structural diagram of a display area of ​​another display panel provided in an embodiment of the present application;

[0112] Fig.34 A schematic partial structural diagram of a display area of ​​another display panel provided in an embodiment of the present application;

[0113] Fig.35 A schematic structural diagram of a display area of ​​a display panel provided in an embodiment of the present application;

[0114] Fig.36 A schematic structural diagram of another display area of ​​a display panel provided in an embodiment of the present application;

[0115] Fig.37 A schematic structural diagram of a display device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0116] In order to better understand the technical solutions provided by the embodiments of this specification, the technical solutions of the embodiments of this specification are described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0117] In this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of more restrictions, the elements limited by the statement "comprise one..." do not exclude the existence of other identical elements in the process, method, article or equipment including the elements. The term "more than two" includes two or more than two situations.

[0118] Traditional display screens are usually rectangular. With the continuous development of display technology, the application of display screens in smart products or wearable smart devices has become increasingly widespread, and the demand for special-shaped display panels has gradually increased, such as the circular display screen of smart watches, special-shaped screens with holes or grooves in smart phones, AR display screens and VR display screens, etc. However, since the display border of special-shaped display screens is also special-shaped, that is, the display border is non-linear, the display screen is prone to jaggedness on the special-shaped display border, affecting the display effect.

[0119] In view of this, the embodiments of the present application provide a display panel and a display device, which can improve the jagged feeling of the display picture at the display boundary of the special-shaped display panel and improve the display effect.

[0120] According to a first aspect of the embodiments of the present application, a display panel is provided. Figure 1 A schematic partial cross-sectional structure diagram of a display panel provided in an embodiment of the present application; Figure 2 A schematic diagram of a partial arrangement of sub-pixels of a display panel provided in an embodiment of the present application. Figure 1 and Figure 2 The display panel includes: a substrate layer 100; a plurality of pixel units 200 are arranged on one side of the substrate layer 100, and the plurality of pixel units 200 can be arranged in an array, and the pixel units 200 include sub-pixels 201. Figure 2 As shown, the pixel unit 200 includes a first sub-pixel 210 , a second sub-pixel 220 and a third sub-pixel 230 , that is, the sub-pixel 201 includes a first sub-pixel 210 , a second sub-pixel 220 and a third sub-pixel 230 . Figure 2 The number of sub-pixels 201 in each pixel unit 200 shown is only for illustration and is not intended to be a specific limitation of the embodiments of the present application.

[0121] For example, Figure 1As shown, a back plate BP, a pixel definition layer 300 and an encapsulation layer 400 are disposed on one side of the substrate layer 100. The back plate BP is disposed between the substrate layer 100 and the pixel definition layer 300. The pixel definition layer 300 is disposed between the back plate BP and the encapsulation layer 400. The encapsulation layer 400 is used to encapsulate the sub-pixel 201 so that the film structure including the sub-pixel is not corroded by water and oxygen from the outside. The pixel definition layer 300 is provided with a pixel opening 301. The pixel opening 301 is hollowed out through the pixel definition layer 300. The pixel opening 301 is used to define the boundary of the sub-pixel 201. The light-emitting layer 202 is disposed in the pixel opening 301. The first sub-pixel 210, the second sub-pixel 220 and the third sub-pixel 230 respectively include a first light-emitting layer 211, a second light-emitting layer 221 and a third light-emitting layer 231, and the first light-emitting layer 211, the second light-emitting layer 221 and the third light-emitting layer 231 are used to emit light of different colors, for example, the first light-emitting layer 211 can emit red light, the second light-emitting layer 221 can emit green light, and the third light-emitting layer 231 can emit blue light; the first light-emitting layer 211 can also emit blue light, and the second light-emitting layer 221 can also emit red light, which is only schematic and not a specific limitation of the embodiment of the present application. An anode 203 and a cathode 204 can be arranged on both sides of the light-emitting layer 202, the cathode 204 is arranged between the light-emitting layer 202 and the encapsulation layer 400, and the anode 203 is arranged between the back plate BP and the light-emitting layer 202. It should be noted that a hole injection layer, a hole transport layer, a hole blocking layer, etc. may be provided between the anode 203 and the light-emitting layer 202, and an electron injection layer, an electron transport layer, an electron blocking layer, etc. may be provided between the cathode 204 and the light-emitting layer 202. The backplane BP may be provided with a pixel driving circuit, and the pixel driving circuit may be electrically connected to the anode 203. The pixel driving circuit may be used to transmit an anode driving signal to the anode 203, and the cathode 204 may obtain a cathode driving signal from the cathode signal line. The pixel driving circuit may include circuit structures such as 2T1C (2 thin-film transistors TFT and 1 capacitor), 7T1C (7 thin-film transistors TFT and 1 capacitor) or 9T2C (9 thin-film transistors TFT and 2 capacitors), and the source or drain of the driving transistor T1 in the pixel driving circuit is electrically connected to the anode 203. Figure 1 The schematic diagram of the electrical connection structure between the driving transistor T1 and the anode 203 is only for illustration and is not intended to be a specific limitation of the present invention. Driven by the anode 203 and the cathode 204, the light-emitting layer 202 can emit corresponding light to realize image display.

[0122] For example, Figure 2As shown, the pixel unit 200 is represented by the area surrounded by the dotted frame. In a pixel unit 200, the orthographic projections of the pixel openings 301 of the first sub-pixel 210, the second sub-pixel 220 and the third sub-pixel 230 on the substrate layer 100 are all located within a virtual rectangle 205, and the orthographic projections of the first light-emitting layer 211, the second light-emitting layer 221 and the third light-emitting layer 231 on the substrate layer 100 are indicated by solid circles. The pixel openings corresponding to the first sub-pixel 210, the second sub-pixel 220 and the third sub-pixel 230 are the first pixel opening 212, the second pixel opening 222 and the third pixel opening 232, respectively, and the boundaries of the first pixel opening 212, the second pixel opening 222 and the third pixel opening 232 are indicated by dotted circles. Figure 1 and Figure 2 , the light-emitting layer 202 may be prepared by an evaporation process. To ensure that the pixel opening 301 is vapor-deposited with light-emitting materials, the light-emitting layer 202 will cover the pixel opening 301, that is, the orthographic projection of the light-emitting layer 202 on the substrate layer 100 covers the orthographic projection of the pixel opening 301 on the substrate layer 100, and the solid circle surrounds the corresponding dotted circle. The areas of the orthographic projections of the first light-emitting layer 211, the second light-emitting layer 221, and the third light-emitting layer 231 on the substrate layer 100 located within the virtual rectangle 205 are the first area S1, the second area S2, and the third area S3, respectively. The ratio of the first area S1 to the area of ​​the orthographic projection of the first light-emitting layer 211 on the substrate layer 100 is greater than 80%, the ratio of the second area S2 to the area of ​​the orthographic projection of the second light-emitting layer 221 on the substrate layer 100 is greater than 80%, and the ratio of the third area S3 to the area of ​​the orthographic projection of the third light-emitting layer 231 on the substrate layer 100 is greater than or equal to 80%. The area encircled by the virtual rectangle 205 corresponding to each pixel unit 200 has 80% or more of the area of ​​the light-emitting layer 202 of each sub-pixel, which can ensure that the pixel opening 301 in the virtual rectangle 205 corresponding to the pixel unit 200 is completely filled with the light-emitting layer 202, so as to make the effective light-emitting area of ​​each sub-pixel 201. It should be noted that the virtual rectangle 205 can be a standard rectangle with four right angles, or a quasi-rectangle, that is, a rectangle with four corners close to right angles.

[0123] Exemplary, reference Figure 2, the geometric center of the orthographic projection of the first pixel opening 212 on the substrate layer 100 is the first geometric center a, the geometric center of the orthographic projection of the second pixel opening 222 on the substrate layer 100 is the second geometric center b, and the geometric center of the orthographic projection of the third pixel opening 232 on the substrate layer 100 is the third geometric center c. The first geometric center a, the second geometric center b, and the third geometric center c are connected in sequence to form a virtual triangle 206, and the angle between the line connecting the first geometric center a and the third geometric center c and the long side e of the virtual rectangle 205 is the first angle f, which is the smallest angle among the angles formed by the sides of the virtual triangle 206 and the long side e of the virtual rectangle 205. Figure 1 The line connecting the first geometric center a and the third geometric center c is parallel to the long side e of the virtual rectangle 205, that is, the first angle f is 0°. The angles between the other sides of the virtual triangle 206 and the long side e of the virtual rectangle 205 are not 0°, and the first angle f is the smallest angle between the virtual triangle 206 and the long side e of the virtual rectangle 205. Based on the first angle f being the smallest angle, the first sub-pixel 210 and the third sub-pixel 230 can be alternately arranged along the long side e of the virtual rectangle 205.

[0124] It should be noted that the virtual rectangle 205 and the virtual triangle 206 are both virtual boundaries, that is, non-physical structures.

[0125] Exemplarily, in a pixel unit 200, the overlapping area of ​​the orthographic projection of the first light-emitting layer 211 and the third light-emitting layer 231 on the substrate layer is the first overlapping area S01, the overlapping area of ​​the orthographic projection of the first light-emitting layer 211 and the second light-emitting layer 221 on the substrate layer 100 is the second overlapping area S02, the overlapping area of ​​the orthographic projection of the second light-emitting layer 221 and the third light-emitting layer 231 on the substrate layer 100 is the third overlapping area S03, and the second overlapping area S02 and the third overlapping area S03 are less than or equal to the first overlapping area S01. The first sub-pixel 210 and the third sub-pixel 230 are alternately arranged along the long side e of the virtual rectangle 205, and the sub-pixels are arranged more closely on the long side e of the virtual rectangle 205, the distance between the first light-emitting layer 211 and the third light-emitting layer 231 is the shortest, and the overlapping area of ​​the light-emitting layers is also the largest, or the overlapping areas of the light-emitting layers of adjacent sub-pixels are equal.

[0126] Exemplary, reference Figure 2 The shapes of the orthographic projections of the first pixel opening 212 , the second pixel opening 222 , and the third pixel opening 232 on the substrate layer 100 include a curved edge L1 . Figure 1 The shapes of the pixel openings shown are all circular, and the curved edge L1 is an arc edge. Figure 2 It is merely illustrative and not intended to be a specific limitation.

[0127] For example, Figure 3A schematic diagram of pixel arrangement of a special-shaped display border provided in an embodiment of the present application. Figure 3 As shown, the shapes of the red sub-pixel R, the green sub-pixel G and the blue sub-pixel B are all rectangular, and the irregular display boundary L0 is a curve. Due to the setting of the rectangular sub-pixels, a jagged feeling of the display screen is easily formed at the location of the irregular display boundary L0, that is, at the boundary of the display area, affecting the display effect.

[0128] refer to Figure 2 In the display panel provided by the embodiment of the present application, the shape of the positive projection of at least one of the first pixel opening 212, the second pixel opening 222 and the third pixel opening 232 on the substrate layer 100 includes a curved edge L1. For the irregular display boundary, the curved edge L1 can be set so that the edge of the sub-pixel outgoing light of the irregular display boundary is a smooth curved boundary, which can improve or even eliminate the jagged feeling of the display screen of the irregular display boundary, and improve the display effect of the display panel. By setting the ratio of the first area S1, the second area S2 and the third area S3 to the area of ​​the positive projection of the first light-emitting layer 211, the second light-emitting layer 221 and the third light-emitting layer 231 on the substrate layer 100 respectively to be greater than 80%, so that the area encircled by the virtual rectangle 205 corresponding to each pixel unit 200 has more than 80% of the area of ​​the light-emitting layer 202 of each sub-pixel, it can be ensured that the pixel opening 301 in the virtual rectangle 205 corresponding to the pixel unit 200 fully fills the light-emitting layer 202, so as to ensure the effective light-emitting area of ​​each sub-pixel 201, and further ensure the light-emitting effect of the sub-pixel. Based on the fact that the first angle f is the smallest angle among the angles formed by the sides of the virtual triangle 206 and the long side e of the virtual rectangle 205, the first sub-pixel 210 and the third sub-pixel 230 can be alternately arranged along the long side e of the virtual rectangle 205. The manner in which the first sub-pixel 210 and the third sub-pixel 230 are alternately arranged along the long side e of the virtual rectangle 205 can make the arrangement of the sub-pixels on the long side e of the virtual rectangle 205 more compact, the distance between the first light-emitting layer 211 and the third light-emitting layer 231 is the shortest, and the overlapping area of ​​the light-emitting layers is also the largest, or the overlapping areas of the light-emitting layers of adjacent sub-pixels are equal, which can improve the compactness of the pixel arrangement of the display panel and further improve the resolution. The first sub-pixel 210 and the third sub-pixel 230 are alternately arranged on the long side e of the virtual rectangle 205, and the first geometric center a, the second geometric center b and the third geometric center c are sequentially connected to form a virtual triangle 206. Based on the arrangement of the seed pixels, the light-emitting boundary in the virtual rectangle 205 corresponding to the pixel unit 200 can be further smoothed on the basis of the setting of the curved edge L1, and the jagged feeling of the display picture of the irregular display boundary can be further improved at the structural unit level of the pixel unit 200, thereby further improving the display effect of the display panel.

[0129] Illustratively, the ratios of the first area S1, the second area S2 and the third area S3 to the areas of the direct projections of the first light-emitting layer 211, the second light-emitting layer 221 and the third light-emitting layer 231 on the substrate layer 100 may be greater than 85%, 87%, 88%, 89%, 90%, 92%, 93%, 95%, 96%, 97%, 98%, 99% or equal to 100%.

[0130] In some embodiments, the ratio of the first overlapping area S01 to the orthographic projection area of ​​the first light-emitting layer 211 on the substrate layer 100 may be less than or equal to 10%, for example, 9%, 7%, 5%, 3%, 1% or 0%.

[0131] In some embodiments, Figure 4 A schematic diagram of a partial arrangement of sub-pixels of another display panel provided in an embodiment of the present application. Figure 4 As shown, in a pixel unit 200, the minimum distance between the pixel opening of the first sub-pixel 210 and the pixel opening of the third sub-pixel 230 is the first distance H1, the minimum distance between the pixel opening of the first sub-pixel 210 and the pixel opening of the second sub-pixel 220 is the second distance H2, and the minimum distance between the pixel opening of the second sub-pixel 220 and the pixel opening of the third sub-pixel 230 is the third distance H3; the first distance H1 is less than or equal to the second distance H2, and the first distance H1 is less than or equal to the third distance H3. Based on the alternating arrangement of the first sub-pixel 210 and the third sub-pixel 230 on the long side e of the virtual rectangle 205, in order to increase the compactness of the sub-pixels and improve the sub-pixel arrangement density of the display panel, so as to improve the PPI (Pixels Per Inch, the number of sub-pixels per inch) of the display panel, the first distance H1 is set to be less than the second distance H2, and the first distance H1 is set to be less than the third distance H3, so that the area of ​​the virtual rectangle can be reduced, and more pixel units 200 can be arranged, thereby improving the PPI.

[0132] For example, under some process capability and pixel structure limitations, the first distance H1 , the second distance H2 , and the third distance H3 may be set to be equal.

[0133] In some embodiments, reference Figure 4 The second overlapping area S02 is equal to the third overlapping area S03, and the spacing between the first sub-pixel 210 and the second sub-pixel 220 can be set equal to the spacing between the second sub-pixel 220 and the third sub-pixel 230, which can make the boundary of the light emitted by the pixel unit 200 smoother and further weaken the jagged feeling of the display screen at the irregular display boundary.

[0134] In some embodiments, reference Figure 4The second distance H2 and the third distance H3 are equal, and both the second distance H2 and the third distance H3 are greater than the first distance H1, which can reduce the length of the long side e of the virtual rectangle 205, thereby reducing the area of ​​the virtual rectangle 205, and can arrange more pixel units 200, thereby improving the PPI of the display panel.

[0135] In some embodiments, reference Figure 4 , the first sub-pixels 210 are arranged continuously along the first direction F1, the first sub-pixels 210 and the third sub-pixels 230 are arranged alternately along the second direction F2, and the first sub-pixels 210 and the second sub-pixels 220 are arranged alternately along the third direction F3. Figure 4 As shown, there may be two third directions F3, any third direction F3 intersects with the first direction F1, and the angle includes an acute angle; any third direction F3 intersects with the second direction F2, and the angle includes an acute angle. The two third directions F3 intersect, and the two third directions F3 may be perpendicular or non-perpendicular. The first direction F1 intersects with the second direction F2, and the first direction F1 is perpendicular to the second direction F2. The second direction F2 may be parallel to the long side e of the virtual rectangle 205, and the first direction F1 may be parallel to the short side of the virtual rectangle 205.

[0136] In some embodiments, Figure 5 A schematic diagram of a partial arrangement of sub-pixels of another display panel provided in an embodiment of the present application. Figure 5 As shown, the first distance H1 is smaller than the third distance H3, the second distance H2 is larger than the third distance H3, and the third distance H3 is smaller than the second distance H2, which can reduce the short side of the virtual rectangle 205, thereby reducing the area of ​​the virtual rectangle 205, arranging more pixel units, and improving the PPI of the display panel.

[0137] refer to Figure 5If the first light-emitting layer 211 and the second light-emitting layer 221 do not overlap, the second overlapping area is 0; if the second light-emitting layer 221 and the third light-emitting layer 231 overlap, the third overlapping area S03 is not 0, and the second overlapping area is smaller than the third overlapping area S03. A diagonal line 207 of the virtual rectangle 205 passes through the geometric centers of the positive projections of the pixel openings of the first sub-pixel 210 and the second sub-pixel 220 on the substrate layer 100, that is, the diagonal line 207 passes through the first geometric center a and the second geometric center b. Except for the diagonal line 207, another diagonal line in the virtual rectangle 205 has no overlap with the first pixel opening 212 and the second pixel opening 222. Then, the angle corresponding to the second geometric center b in the virtual triangle 206 becomes smaller, and the distance between the second sub-pixel 220 and the first sub-pixel 210 becomes larger, and the distance between the second sub-pixel 220 and the third sub-pixel 230 does not increase. The length of the short side of the virtual rectangle 205 can even be reduced, and the length of the long side e of the virtual rectangle 205 will not be increased. This can play a certain role in reducing the area of ​​the virtual rectangle 205, and thus can improve the PPI of the display panel.

[0138] In some embodiments, reference Figure 5 , the first angle f is greater than 0°, and the first angle f between the line connecting the first geometric center a and the third geometric center c and the long side e of the virtual rectangle 205 may be an acute angle less than 30°, for example, 5°, 7°, 10°, 15°, 17°, 25° or 27°. The virtual triangle 206 may be an acute triangle, and the three sides of the virtual triangle 206 may not be equal. Exemplarily, the acute angle between the line ab and the long side e of the virtual rectangle 205 may be less than 65%, and the acute angle between the line cb and the long side e of the virtual rectangle 205 may be less than 65%.

[0139] In some embodiments, the angle between the first direction F1 and the second direction F2 includes an acute angle, and the second direction F2 may be parallel to the line connecting a and c. The first direction F1 may be parallel to the short side of the virtual rectangle 205, and the short side of the virtual rectangle 205 is a different side connected to the long side e.

[0140] In some embodiments, reference Figure 5, the minimum distance between the pixel openings of two adjacent first sub-pixels 210 belonging to different pixel units 200 is the fourth distance H4, that is, the minimum distance between two adjacent first pixel openings 212 belonging to different pixel units 200 is the fourth distance H4. The minimum distance between the pixel openings of two adjacent second sub-pixels 220 belonging to different pixel units is the fifth distance H5, that is, the minimum distance between two adjacent second pixel openings 222 belonging to different pixel units 200 is the fifth distance H5. The minimum distance between the pixel openings of two adjacent third sub-pixels 230 belonging to different pixel units 200 is the sixth distance H6, that is, the distance between two adjacent third pixel openings 232 belonging to different pixel units 200 is the sixth distance H6. The fourth distance H4 is equal to the fifth distance H5, and the fourth distance H4 is less than the sixth distance H6.

[0141] Exemplarily, the fourth distance H4 may be smaller than the fifth distance H5, and the fifth distance H5 may be smaller than the sixth distance H6.

[0142] Exemplarily, according to the arrangement of sub-pixels, the fourth distance, the fifth distance and the sixth distance may all be equal.

[0143] In some embodiments, reference Figure 2 , Figure 4 and Figure 5 , the orthographic projection area of ​​the pixel opening of the third sub-pixel 230 on the substrate layer 100 is smaller than the orthographic projection area of ​​the pixel opening of the first sub-pixel 210 on the substrate layer 100, that is, the area of ​​the third pixel opening 232 is smaller than the area of ​​the first pixel opening 212. The orthographic projection area of ​​the pixel opening of the third sub-pixel 230 on the substrate layer 100 is smaller than the orthographic projection area of ​​the pixel opening of the second sub-pixel 220 on the substrate layer 100, that is, the area of ​​the third pixel opening 232 is smaller than the area of ​​the second pixel opening 222. The orthographic projection area of ​​the pixel opening of the second sub-pixel 220 on the substrate layer 100 is smaller than the orthographic projection area of ​​the pixel opening of the first sub-pixel 210 on the substrate layer 100, that is, the area of ​​the second pixel opening 222 is smaller than the area of ​​the first pixel opening 212.

[0144] In some embodiments, Figure 6 The following is a schematic diagram of the arrangement of sub-pixels in a pixel unit provided in an embodiment of the present application. Figure 6 As shown, the third pixel opening 232 and the second pixel opening 222 have the same area, and the third pixel opening 232 and the second pixel opening 222 are both smaller than the first pixel opening 212. The size of the sub-pixel opening can be set according to different chromaticity requirements.

[0145] In some embodiments, Figure 7A schematic diagram of a partial arrangement of sub-pixels of another display panel provided in an embodiment of the present application. Figure 7 As shown, the pixel unit 200 further includes a fourth sub-pixel 240, the orthographic projection of the pixel opening of the fourth sub-pixel 240 on the substrate layer 100 is located within the virtual rectangle 205, the pixel opening of the fourth sub-pixel 240 is a fourth pixel opening 242, and the fourth sub-pixel 240 includes a fourth light-emitting layer 241. The color of the light emitted by the fourth light-emitting layer 241 can be the same color as that of any one of the first light-emitting layer 211, the second light-emitting layer 221, and the third light-emitting layer 231, or the fourth light-emitting layer 241 can be used to emit white light. The area of ​​the orthographic projection of the fourth light-emitting layer 241 on the substrate layer 100 that is located within the virtual rectangle 205 is a fourth area S4, and the ratio of the fourth area S4 to the area of ​​the orthographic projection of the first light-emitting layer 211 on the substrate layer 100 is greater than 80%. The geometric center of the orthographic projection of the fourth pixel opening 242 on the substrate layer 100 is the fourth geometric center d. In one pixel unit 200, the geometric centers of the orthographic projections of the pixel openings of the first sub-pixel 210, the second sub-pixel 220, the third sub-pixel 230 and the fourth sub-pixel 240 on the substrate layer 100 are connected in sequence to form a virtual quadrilateral 208, that is, the first geometric center a, the second geometric center b, the third geometric center c and the fourth geometric center d are connected in sequence to form a virtual quadrilateral 208. In one pixel unit 200, the geometric center connecting the pixel opening of the first sub-pixel 210 and the pixel opening of the second sub-pixel 220 on the substrate layer 100 is the first connecting line, that is, the connecting line of the first geometric center a and the second geometric center b is the first connecting line ab; the geometric center connecting the pixel opening of the third sub-pixel 230 and the pixel opening of the fourth sub-pixel 240 on the substrate layer 100 is the second connecting line, that is, the connecting line of the third geometric center c and the fourth geometric center d is the second connecting line cd. In a pixel unit 200 , the first line ab intersects with the second line cd, and the first line ab and the second line cd may be two diagonal lines of the virtual quadrilateral 208 .

[0146] Exemplary, reference Figure 7 , the first light-emitting layer 211 overlaps with the third light-emitting layer 231, the first light-emitting layer 211 overlaps with the fourth light-emitting layer 241, and the first light-emitting layer 211 does not overlap with the second light-emitting layer 221, then the distance between the first pixel opening 212 and the second pixel opening 222 is the largest in the virtual rectangle 205. In two adjacent pixel units 200, the adjacent first light-emitting layers 211 overlap, the adjacent third light-emitting layers 231 do not overlap, the adjacent fourth light-emitting layers 241 overlap, and the adjacent second light-emitting layers 221 and fourth light-emitting layers 241 do not overlap.

[0147] The display panel provided in the embodiment of the present application has a fourth sub-pixel 240 disposed in the pixel unit 200, which can perform chromaticity compensation on the colors of other sub-pixels in the pixel unit 200, adjust the color coordinates of the display panel, and improve the color gamut.

[0148] In some embodiments, reference Figure 7 In a pixel unit 200, the first line ab is perpendicular to the second line cd; the geometric centers of the orthographic projections of the pixel openings of the third sub-pixel 230 and the fourth sub-pixel 240 on the substrate layer 100 are symmetrical about the second line cd, that is, the fourth geometric center d is symmetrical about the third geometric center c about the second line cd. The fourth sub-pixel 240 can be arranged in the existing virtual rectangle 205, and the fourth sub-pixel 240 and the third sub-pixel 230 are arranged symmetrically about the second line cd, so that the area of ​​the virtual rectangle 205 does not increase, that is, the PPI of the display panel is not affected. Without increasing the area occupied by the pixel unit 200, the display chromaticity of the display panel can be improved by the arrangement of the fourth sub-pixel 240.

[0149] In some embodiments, the fourth light emitting layer 241 of the fourth sub-pixel 240 emits the same color as the light emitted by the third light emitting layer 231. For example, the first light emitting layer 211 can emit red light, the second light emitting layer 221 can emit blue light, and the third light emitting layer 231 and the fourth light emitting layer 241 can emit green light. By setting the green fourth sub-pixel 240 and adjusting the size of the fourth pixel opening 242, the color coordinates of the display panel can be adjusted to meet the chromaticity requirements.

[0150] In some embodiments, reference Figure 7 , the orthographic projection area of ​​the pixel opening of the fourth sub-pixel 240 on the substrate layer 100 is smaller than the orthographic projection area of ​​the pixel opening of the first sub-pixel 210 on the substrate layer 100, that is, the area of ​​the fourth pixel opening 242 is smaller than the area of ​​the first pixel opening 212. The orthographic projection area of ​​the pixel opening of the fourth sub-pixel 240 on the substrate layer 100 is smaller than the orthographic projection area of ​​the pixel opening of the second sub-pixel 220 on the substrate layer 100, that is, the area of ​​the fourth pixel opening 242 is smaller than the area of ​​the second pixel opening 222.

[0151] In some embodiments, reference Figure 7 , the orthographic projection area of ​​the pixel opening of the fourth sub-pixel 240 on the substrate layer 100 is equal to the orthographic projection area of ​​the pixel opening of the third sub-pixel 230 on the substrate layer 100, that is, the area of ​​the fourth pixel opening 242 is equal to the area of ​​the third pixel opening 232. Setting the size of the fourth sub-pixel 240 and the third sub-pixel 230 to be equal and symmetrical can facilitate typesetting design and reduce the difficulty of the manufacturing process.

[0152] In some embodiments, at least two sides of the virtual quadrilateral 208 have different lengths, and at least two sides of the virtual quadrilateral 208 have the same lengths. Figure 4 , one side ad of the virtual quadrilateral 208 is greater than the opposite side cb, and the side ac is greater than the opposite side bd. When the fourth pixel opening 242 is equal to the third pixel opening 232, ad is equal to ac, and bd is equal to cb. It should be noted that the side length of the virtual quadrilateral 208 is determined by the size of the pixel opening.

[0153] In some embodiments, the orthographic projection of the first light-emitting layer 211 on the substrate layer 100 is tangent to the orthographic projection of the second light-emitting layer 221 on the substrate layer, that is, the edges of the first light-emitting layer 211 and the second light-emitting layer 221 are set to be tangent, so that the distance between the first light-emitting layer 211 and the second light-emitting layer 221 can be kept fixed, which can reduce the color mixing that occurs when the first light-emitting layer 211 and the second light-emitting layer 221 emit light at the same time, improve the chromaticity purity, and thus improve the display effect of the display panel.

[0154] In some embodiments, the orthographic projection of the first light-emitting layer 211 on the substrate layer 100 is tangent to the orthographic projection of the third light-emitting layer 231 on the substrate layer 100, that is, the edges of the first light-emitting layer 211 and the third light-emitting layer 231 are set to be tangent, so that the distance between the first light-emitting layer 211 and the third light-emitting layer 231 can be kept fixed, which can reduce the color mixing that occurs when the first light-emitting layer 211 and the third light-emitting layer 231 emit light at the same time, improve the chromaticity purity, and further improve the display effect of the display panel.

[0155] In some embodiments, the orthographic projection of the second light-emitting layer 221 on the substrate layer 100 is tangent to the edge of the orthographic projection of the third light-emitting layer 231 on the substrate layer 100, that is, the edges of the second light-emitting layer 221 and the third light-emitting layer 231 are set to be tangent, so that the distance between the second light-emitting layer 221 and the third light-emitting layer 231 can be kept fixed, which can reduce the color mixing that occurs when the second light-emitting layer 221 and the third light-emitting layer 231 emit light at the same time, improve the purity of the chromaticity, and further improve the display effect of the display panel.

[0156] In some embodiments, the positive projection edge of the first light-emitting layer 211 on the substrate layer 100 is tangent to at least one side of the virtual rectangle 205, and the boundary of the first light-emitting layer 211 is tangent to at least one side of the virtual rectangle 205, which can reduce the distance between adjacent first sub-pixels 210 of adjacent pixel units 200 and improve the PPI of the display panel.

[0157] In some embodiments, the orthographic projection edge of the second light emitting layer 221 on the substrate layer 100 is tangent to at least one side of the virtual rectangle 205. The boundary of the second light emitting layer 221 is tangent to at least one side of the virtual rectangle 205, which can reduce the distance between adjacent second sub-pixels 220 of adjacent pixel units 200 and improve the PPI of the display panel.

[0158] In some embodiments, the orthographic projection edge of the third light emitting layer 231 on the substrate layer 100 is tangent to at least one side of the virtual rectangle 205. The boundary of the third light emitting layer 231 is tangent to at least one side of the virtual rectangle 205, which can reduce the distance between adjacent third sub-pixels 230 of adjacent pixel units 200 and improve the PPI of the display panel.

[0159] For example, Figure 8 A schematic diagram of a local arrangement of sub-pixels of a display panel provided in an embodiment of the present application. Figure 8As shown, the boundary shapes of the first light-emitting layer 211, the second light-emitting layer 221 and the third light-emitting layer 231 are all circular, the boundary of the first light-emitting layer 211 is tangent to the boundary of the second light-emitting layer 221 and the third light-emitting layer 231 respectively, the boundary of the second light-emitting layer 221 and the third light-emitting layer 231 are also tangent, and there is one tangent point between the light-emitting layers of adjacent sub-pixels. The edge of the first light-emitting layer 211 belonging to one of the adjacent pixel units 200 is tangent to the edge of the third light-emitting layer 231 of the other, and the tangent point is located on the short side of the virtual rectangle 205. The boundary of the first light-emitting layer 211 is tangent to two adjacent different sides of the virtual rectangle 205, and the edge of the first light-emitting layer 211 has two different tangent points with the edge of the virtual rectangle 205; the boundary of the second light-emitting layer 221 is tangent to one side of the virtual rectangle 205, and the tangent point is one; the boundary of the third light-emitting layer 231 is tangent to one side of the virtual rectangle 205, and the tangent point is one. The side where the boundary of the first light-emitting layer 211 is tangent to the virtual rectangle 205 is different from the side where the boundary of the third light-emitting layer 231 is tangent to the virtual rectangle 205, the side where the boundary of the first light-emitting layer 211 is tangent to the virtual rectangle 205 is different from the side where the boundary of the third light-emitting layer 231 is tangent to the virtual rectangle 205, and the boundary of the third light-emitting layer 231 and the boundary of the second light-emitting layer 221 are tangent to the virtual rectangle 205 at different sides. The boundary of the first light-emitting layer 211 is tangent to both the long side e and the adjacent short side of the virtual rectangle 205, the boundary of the second light-emitting layer 221 is tangent to the long side e of the virtual rectangle 205, and the boundary of the third light-emitting layer 231 is tangent to the short side of the virtual rectangle 205. The first sub-pixels 210 are arranged continuously in the first direction F1, the first sub-pixels 210 and the third sub-pixels 230 are arranged alternately in the second direction F2, and the first sub-pixels 210 and the second sub-pixels 220 are arranged at the intersection in the third direction F3. The boundaries of the light-emitting layers of the three sub-pixels in the pixel unit 200 are tangent to each other, which can reduce the overlap of the light-emitting layers, thereby reducing the color mixing between the sub-pixels and improving the display effect.

[0160] It should be noted that the edges of adjacent light-emitting layers are tangent to each other, which can be understood as the adjacent light-emitting layers having no overlap.

[0161] For example, Fig. 9 A schematic partial position relationship diagram of a sub-pixel of a display panel and a mask opening of an evaporation mask provided in an embodiment of the present application. Fig. 9 As shown, the evaporation mask includes a first mask opening 501, a second mask opening 502 and a third mask opening 503. Fig. 9The mask openings are represented by dotted circles, and the solid circles are pixel openings. In the preparation process of the light-emitting layer of the display panel, the first pixel opening 212 corresponds to the first mask opening 501, the second pixel opening 222 corresponds to the second mask opening 502, and the third pixel opening 232 corresponds to the third mask opening 503. On the evaporation mask, the first mask opening 501 is tangent to the second mask opening 502 and the third mask opening 503, respectively, and the second mask opening 502 is tangent to the third mask opening 503. The first mask opening 501 is tangent to the adjacent long sides and short sides of the virtual rectangle 205, respectively, the second mask opening 502 is tangent to the other long side of the virtual rectangle 205, and the third mask opening 503 is tangent to the other short side of the virtual rectangle 205. As shown Fig. 9 As shown, the pixel openings correspond to the mask openings one by one. The first mask opening 501 and the third mask opening 503 belonging to two adjacent pixel units are tangent to each other, and the tangent point falls on the boundary of the virtual rectangles 205 corresponding to the two pixel units.

[0162] Exemplary, reference Fig. 9 , the three mask openings in the virtual rectangle 205 are tangent to each other, and it is difficult to make the three mask openings on the same evaporation mask plate, so the three mask openings can be set on three evaporation mask plates respectively. Fig.10 This is a schematic partial structural diagram of a first evaporation mask provided in an embodiment of the present application. Fig.10 As shown, the first evaporation mask plate 510 only includes a first mask opening 501. The first evaporation mask plate 510 also includes a mask plate body 504. The first mask opening 501 is a through hole penetrating the mask plate body 504. Fig.10 The dashed circle shown indicates the first pixel opening 212 corresponding to the first mask opening 501 . Fig.11 This is a schematic partial structural diagram of a second evaporation mask provided in an embodiment of the present application. Fig.11 As shown, the second evaporation mask 520 only includes the second mask opening 502. Fig.11 The dashed circle shown indicates the second pixel opening 222 corresponding to the second mask opening 502 . Fig.12 This is a schematic partial structural diagram of a third evaporation mask provided in an embodiment of the present application. Fig.12 As shown, the third evaporation mask 530 only includes the third mask opening 503. Fig.12 The dashed circle shown indicates the third pixel opening 232 corresponding to the third mask opening 503 .

[0163] For example, Fig.10 The first evaporation mask 510 shown, Fig.11 The second evaporation mask 520 and Fig.12The third evaporation mask plate 530 shown can form a group of evaporation mask plates for preparing Figure 8 The light-emitting layer of the display panel is shown.

[0164] In some embodiments, the light-emitting layers of at least two adjacent sub-pixels emitting light of the same color are prepared through the same mask opening of the evaporation mask, and the light-emitting layers include a first light-emitting layer 211, a second light-emitting layer 221, and a third light-emitting layer 231. The light-emitting layers may also include a fourth light-emitting layer 241. Figure 1 , usually the material of the light-emitting layer is prepared by an evaporation process. In the pixel opening 301 of the pixel defining layer 300, the mask opening on the evaporation mask can be used to limit the evaporation area of ​​the light-emitting layer material, and the mask opening of the evaporation mask is a hollow through the mask body. For example, the first light-emitting layer 211 of two adjacent first sub-pixels 210 can be prepared through the same first mask opening of the evaporation mask; the second light-emitting layer 221 of two adjacent second sub-pixels 220 can also be prepared through the same second mask opening of the evaporation mask; the third light-emitting layer 231 of two adjacent third sub-pixels 230 can also be prepared through the same third mask opening of the evaporation mask; and the fourth light-emitting layer 241 of two adjacent fourth sub-pixels 240 can also be prepared through the same fourth mask opening of the evaporation mask.

[0165] For example, Fig.13 A schematic diagram of a local arrangement of sub-pixels of a display panel provided in an embodiment of the present application. Fig.13As shown, the virtual rectangle 205 is indicated by a dotted line, the mask opening of the evaporation mask is indicated by a dotted line, and the mask opening may correspond to the area where the light-emitting layer is located. The pixel opening is indicated by a solid circle. The evaporation mask includes a first mask opening 501, a second mask opening 502, and a third mask opening 503. The first light-emitting layer 211 of two adjacent first sub-pixels 210 is prepared through the same first mask opening 501, the second light-emitting layer 221 of two adjacent second sub-pixels 220 is prepared through the same second mask opening 502, and the third light-emitting layer 231 of two adjacent third sub-pixels 230 is prepared through the same third mask opening 503. The light-emitting layer prepared through the same mask opening can fill the pixel openings of different sub-pixels 201, and different sub-pixels 201 prepared through the same mask opening belong to different pixel units 200. The overlap of the light-emitting layers may correspond to the overlap of the mask openings. For example, the first overlapping area S01 is formed by the overlapping area of ​​the first mask opening 501 and the third mask opening 503, the second overlapping area S02 is formed by the overlapping area of ​​the first mask opening 501 and the second mask opening 502, and the third overlapping area S03 is formed by the overlapping area of ​​the second mask opening 502 and the third mask opening 503.

[0166] Exemplary, reference Fig.13 In the first direction F1, the first sub-pixels 210 in the adjacent pixel units 200 are arranged adjacent to each other, so that the first light-emitting layers 211 of the two adjacent first sub-pixels 210 are prepared synchronously through a first mask opening 501. In the first direction F1, the second sub-pixels 220 in the adjacent pixel units 200 are arranged adjacent to each other, so that the second light-emitting layers 221 of the two adjacent second sub-pixels 220 are prepared synchronously through a second mask opening 502. In the first direction F1, the third sub-pixels 230 in the adjacent pixel units 200 are arranged adjacent to each other, so that the third light-emitting layers 231 of the two adjacent third sub-pixels 230 are prepared synchronously through a third mask opening 503. The two first pixel openings 212 belonging to the adjacent pixel units 200 are arranged symmetrically about the long side e of the virtual rectangle 205, the two second pixel openings 222 belonging to the adjacent pixel units 200 are arranged symmetrically about the long side e of the virtual rectangle 205, and the two third pixel openings 232 belonging to the adjacent pixel units 200 are arranged symmetrically about the long side e of the virtual rectangle 205.

[0167] For example, Fig.14 This is a schematic partial structural diagram of another first evaporation mask provided in an embodiment of the present application. Fig.14 As shown, the first evaporation mask 510 includes a mask body 504 and a plurality of first mask openings 501, the plurality of first mask openings 501 are arranged in an array, and the first evaporation mask 510 is used to evaporate the first light-emitting layer. Figure 8 One first mask opening 501 is used for evaporation to obtain the first light-emitting layers 211 of two first sub-pixels 210 , and the first light-emitting layer 211 evaporated from one first mask opening 501 can correspond to two first sub-pixels 210 of two different pixel units 200 , respectively.

[0168] For example, Fig.15 This is a schematic partial structural diagram of another second evaporation mask provided in an embodiment of the present application. Fig.15 As shown, the second evaporation mask 520 includes a mask body 504 and a plurality of second mask openings 502, the plurality of second mask openings 502 are arranged in an array, and the second evaporation mask 520 is used to evaporate the second light-emitting layer. Figure 8 One second mask opening 502 is used to evaporate and obtain the second light-emitting layer 221 of two second sub-pixels 220 , and the second light-emitting layer 221 evaporated and obtained by one second mask opening 502 can correspond to two second sub-pixels 220 of two different pixel units 200 , respectively.

[0169] For example, Fig.16 This is a schematic partial structural diagram of another third evaporation mask provided in an embodiment of the present application. Fig.16 As shown, the third evaporation mask 530 includes a mask body 504 and a plurality of third mask openings 503, the plurality of third mask openings 503 are arranged in an array, and the third evaporation mask 530 is used to evaporate the third light-emitting layer. Fig.13 One third mask opening 503 is used to evaporate and obtain the third light-emitting layer 231 of two third sub-pixels 230 , and the third light-emitting layer 231 evaporated and obtained by one third mask opening 503 can respectively correspond to two third sub-pixels 230 of two different pixel units 200 .

[0170] Illustratively, since there are overlapping areas among the first mask opening 501, the second mask opening 502, and the third mask opening 503, they can be respectively arranged on three evaporation mask plates. The first evaporation mask plate 510 is used in the process of preparing the first light-emitting layer 211 of the display panel, the second evaporation mask plate 520 is used in the process of preparing the second light-emitting layer 221 of the display panel, and the third evaporation mask plate 530 is used in the process of preparing the third light-emitting layer 231 of the display panel. Fig.14 The first evaporation mask 510 shown, Fig.15 The second evaporation mask 520 and Fig.16 The third evaporation mask plate 530 can form a group of evaporation mask plates for preparing Fig.13 The light-emitting layer of the display panel is shown.

[0171] The display panel provided in the embodiment of the present application, due to the existence of the first overlapping area S01, the second overlapping area S02 and the third overlapping area S03, the distance between the pixel openings of adjacent sub-pixels is retracted, which can increase the number of sub-pixels arranged, thereby improving the PPI of the panel. However, it will increase the difficulty of making the mask openings of the evaporation mask, and the preparation accuracy requirements for the mask openings are high, the preparation yield of the evaporation mask is reduced, and the cost is increased. By setting at least two light-emitting layers of the same color and adjacent sub-pixels to be prepared through the same mask opening, the total number of mask openings on the evaporation mask can be reduced, the distance between adjacent mask openings is increased, the precision requirements for the preparation of the mask openings of the evaporation mask are reduced, the yield is increased, and it will not cause an increase in production costs, and can even reduce the manufacturing cost of the evaporation mask.

[0172] In some embodiments, the mask openings of the evaporation mask corresponding to at least two pixel openings in the virtual rectangle are tangent to each other. For example, the first mask opening 501 and the second mask opening 502 are tangent to each other in the virtual rectangle 205, or the first mask opening 501 and the third mask opening 503 are tangent to each other in the virtual rectangle 205, or the second mask opening 502 and the third mask opening 503 are tangent to each other in the virtual rectangle 205, or the first mask opening 501, the second mask opening 502 and the third mask opening 503 are tangent to each other in the virtual rectangle 205.

[0173] The display panel provided in the embodiment of the present application can control the distance between adjacent pixel openings and reduce the incidence of color mixing between sub-pixels corresponding to adjacent pixel openings by tangently setting different mask openings of the evaporation mask corresponding to at least two pixel openings within the virtual rectangle 205; by setting the mask openings to be tangent, the distance between the mask openings can be shortened, and then the distance between the pixel openings can be shortened, the number of arranged sub-pixels can be increased, and the resolution of the display panel can be improved.

[0174] Exemplary, reference Fig.13 The first mask opening 501 and the second mask opening 502 are tangent to each other in the virtual rectangle 205, and there is only one tangent point. The first light-emitting layer 211 prepared corresponding to the first mask opening 501 and the second light-emitting layer 221 prepared corresponding to the second mask opening 502 emit light of different colors.

[0175] The display panel provided in the embodiment of the present application can reduce the occurrence rate of color mixing and improve the display effect by preparing the light-emitting layers of two sub-pixels corresponding to the mask openings and combining the edges of at least two mask openings to be tangent.

[0176] In some embodiments, the first light-emitting layer 211 of two adjacent first sub-pixels 210 belonging to two pixel units 200 is prepared through the same first mask opening 501 of the evaporation mask; the second light-emitting layer 221 of two adjacent second sub-pixels 220 belonging to two pixel units 200 is prepared through the same second mask opening 502 of the evaporation mask; the third light-emitting layer 231 of a third sub-pixel 230 is prepared through a third mask opening 503 of the evaporation mask.

[0177] For example, Fig.17 A schematic diagram of a partial arrangement of sub-pixels of another display panel provided in an embodiment of the present application. Fig.17 As shown, the virtual rectangle 205 is indicated by a dotted line, the mask opening of the evaporation mask is indicated by a dotted line, and the boundary of the pixel opening is indicated by a solid circle. The first light-emitting layer 211 of two adjacent first sub-pixels 210 is prepared through the same first mask opening 501, the second light-emitting layer 221 of two adjacent second sub-pixels 220 is prepared through the same second mask opening 502, and the third light-emitting layer 231 of a third sub-pixel 230 is prepared through a third mask opening 503. The third pixel opening 232 corresponds to the third mask opening 503 one-to-one, the first pixel opening 212 corresponds to the first mask opening 501 in a two-to-one relationship, and the second pixel opening 222 corresponds to the second mask opening 502 in a two-to-one relationship. The light-emitting layer prepared through the same mask opening can fill the pixel openings of different sub-pixels 201, and different sub-pixels 201 prepared through the same mask opening belong to different pixel units 200.

[0178] For example, Fig.18 This is a schematic partial structural diagram of an evaporation mask provided in an embodiment of the present application. Fig.18 As shown, the dotted circle indicates the boundary of the pixel opening. The edge of the first mask opening 501 and the edge of the third mask opening 503 are tangent to each other in the virtual rectangle 205, and there is one tangent point. The edge of the second mask opening 502 and the edge of the third mask opening 503 are tangent to each other in the virtual rectangle 205, and there is one tangent point. The edge of the third mask opening 503 is tangent to a short side of the virtual rectangle 205, and there is one tangent point. Fig.17 and Fig.18 , the distance between the first mask opening 501 and the second mask opening 502 is greater than 0, and the corresponding first light-emitting layer 211 and the second light-emitting layer 221 do not overlap. Part of the edge of the first mask opening 501 overlaps with the short side of the virtual rectangle 205.

[0179] Exemplary, reference Fig.18, one long side e of a virtual rectangle 205 passes through the first mask opening 501, and the other long side e passes through the second mask opening 502. That is, the first mask opening 501 and the second mask opening 502 corresponding to a virtual rectangle 205 respectively cross two different long sides e, or the first mask opening 501 and the second mask opening 502 both cross the boundary of the pixel unit 200.

[0180] Exemplary, reference Fig.18 The geometric centers of the first mask opening 501, the second mask opening 502, and the third mask opening 503 are connected in sequence to form a virtual mask triangle 505. The three sides of the virtual mask triangle 505 are not equal.

[0181] Exemplary, reference Fig. 9 , Fig.16 and Fig.18 , the area of ​​the first mask opening 501 is larger than the area of ​​the second mask opening 502 , and the area of ​​the second mask opening 502 is larger than the area of ​​the third mask opening 503 .

[0182] In some embodiments, at least four adjacent light-emitting layers emitting light of the same color are prepared through the same mask opening of the evaporation mask. For example, the first light-emitting layer 211 of the four first sub-pixels 210 can be prepared through the same first mask opening of the evaporation mask; the second light-emitting layer 221 of the four second sub-pixels 220 can also be prepared through the same second mask opening of the evaporation mask; and the third light-emitting layer 231 of the four third sub-pixels 230 can also be prepared through the same third mask opening of the evaporation mask. It should be noted that the light-emitting layers of four sub-pixels can be prepared through the same mask opening, and the light-emitting layers of two sub-pixels can be prepared through the same mask opening.

[0183] In some embodiments, the light-emitting layer prepared through the same mask opening of the evaporation mask may correspond to a plurality of sub-pixels of the same color belonging to different pixel units. For example, the first light-emitting layers 211 of the four first sub-pixels 210 prepared through a first mask opening 501 respectively belong to four adjacent pixel units 200. The second light-emitting layers 221 of the two second sub-pixels 220 prepared through a second mask opening 502 respectively belong to two adjacent pixel units 200.

[0184] For example, Fig.19 A schematic diagram of a partial arrangement of sub-pixels of another display panel provided in an embodiment of the present application. Fig.19As shown, the virtual rectangle 205 is indicated by a dotted line, the mask opening of the evaporation mask is indicated by a dotted line, and the pixel opening is indicated by a solid circle. The evaporation mask includes a first mask opening 501, a second mask opening 502, and a third mask opening 503. The first light-emitting layer 211 of the two first sub-pixels 210 can be prepared synchronously by a first mask opening 501, and the second light-emitting layer 221 of the two second sub-pixels 220 is prepared synchronously by a second mask opening 502. The first mask opening 501 is tangent to the second mask opening 502, and the tangent point is located in the virtual rectangle 205; the first mask opening 501 is tangent to the third mask opening 503, and the tangent point is located in the virtual rectangle 205; the second mask opening 502 is tangent to the third mask opening 503, and the tangent point is located in the virtual rectangle 205.

[0185] For example, Fig. 20 A schematic diagram of a partial arrangement of sub-pixels of another display panel provided in an embodiment of the present application. Fig. 20 As shown, the first light-emitting layers 211 of the four first sub-pixels 210 are prepared synchronously through a first mask opening 501, the second light-emitting layers 221 of the two second sub-pixels 220 are prepared synchronously through a second mask opening 502, and the third light-emitting layers 231 of the two third sub-pixels 230 are prepared synchronously through a third mask opening 503. The first mask opening 501 and the second mask opening 502 are tangent to each other in the virtual rectangle 205, the first mask opening 501 and the third mask opening 503 are tangent to each other in the virtual rectangle 205, and the second mask opening 502 and the third mask opening 503 are tangent to each other in the virtual rectangle 205. The tangent of the mask openings can reduce the contact perimeter between the mask openings. The smaller the contact perimeter between adjacent mask openings, the smaller the contact length of the prepared light-emitting layer, or the overlap area of ​​the prepared light-emitting layer is smaller, or even the corresponding light-emitting layers prepared are tangent; the tangent of the mask openings can prepare tangent light-emitting layers or adjacent light-emitting layers with a small overlap area, which can reduce the risk of light mixing of the light-emitting layers.

[0186] refer to Fig. 20 The first light-emitting layer 211 prepared through the same first mask opening 501 can cover the four first pixel openings 212 belonging to the four pixel units 200, the second light-emitting layer 221 prepared through the same second mask opening 502 can cover the two second pixel openings 222 belonging to the two pixel units 200, and the third light-emitting layer 231 prepared through the same third mask opening 503 can cover the two third pixel openings 232 belonging to the two pixel units 200.

[0187] Exemplary, reference Fig. 20The first sub-pixels 210 of four adjacent pixel units 200 are arranged adjacent to each other, so that the first light-emitting layers 211 of the four adjacent first sub-pixels 210 are simultaneously prepared through a first mask opening 501. The second sub-pixels 220 of four adjacent pixel units 200 are arranged adjacent to each other; and the third sub-pixels 230 of four adjacent pixel units 200 are arranged adjacent to each other.

[0188] For example, Fig.21 This is a schematic partial structural diagram of another evaporation mask provided in an embodiment of the present application. Fig.21 As shown, the evaporation mask 500 includes a first mask opening 501, a second mask opening 502 and a third mask opening 503. Fig. 20 The corresponding relationship between the first mask opening 501 and the first pixel opening 212 is one-to-four, the corresponding relationship between the second mask opening 502 and the second pixel opening 222 is one-to-two, and the corresponding relationship between the third mask opening 503 and the third pixel opening 232 is one-to-two.

[0189] For example, Fig. 22 A schematic diagram of a local arrangement of sub-pixels of a display panel provided in an embodiment of the present application. Fig. 22 As shown, the first light-emitting layers 211 of the four first sub-pixels 210 are prepared synchronously through a first mask opening 501, the second light-emitting layers 221 of the two second sub-pixels 220 are prepared synchronously through a second mask opening 502, and the third light-emitting layers 231 of the two third sub-pixels 230 are prepared synchronously through a third mask opening 503. If the distance between the first mask opening 501 and the second mask opening 502 is greater than 0, the corresponding first light-emitting layers 211 and second light-emitting layers 221 do not overlap; the first mask opening 501 and the third mask opening 503 are tangent to each other in the virtual rectangle 205, and one second mask opening 502 has two tangent points with an adjacent first mask opening 501; the second mask opening 502 and the third mask opening 503 are tangent to each other in the virtual rectangle 205, and one second mask opening 502 has two tangent points with an adjacent third mask opening 503. The tangency of the mask openings can reduce the contact circumference between the mask openings. The smaller the contact circumference between adjacent mask openings, the smaller the contact length of the prepared light-emitting layer, or the overlapping area of ​​the prepared light-emitting layer is smaller, or even the corresponding light-emitting layers prepared are tangent. The tangency of the mask openings can prepare tangent light-emitting layers or adjacent light-emitting layers with a small overlapping area, which can reduce the risk of light mixing of the light-emitting layers.

[0190] refer to Fig. 22The first light-emitting layer 211 prepared through the same first mask opening 501 can cover the four first pixel openings 212 belonging to the four pixel units 200, the second light-emitting layer 221 prepared through the same second mask opening 502 can cover the two second pixel openings 222 belonging to the two pixel units 200, and the third light-emitting layer 231 prepared through the same third mask opening 503 can cover the two third pixel openings 232 belonging to the two pixel units 200.

[0191] For example, Fig.23 A schematic partial structural diagram of another evaporation mask provided in an embodiment of the present application. Fig.23 As shown, the evaporation mask 500 includes a first mask opening 501, a second mask opening 502 and a third mask opening 503. Fig. 22 The corresponding relationship between the first mask opening 501 and the first pixel opening 212 is one-to-four, the corresponding relationship between the second mask opening 502 and the second pixel opening 222 is one-to-two, and the corresponding relationship between the third mask opening 503 and the third pixel opening 232 is one-to-two.

[0192] In some embodiments, the first light-emitting layer 211 of at least four pixel units 200 and at least four adjacent first sub-pixels 210 is prepared through the same first mask opening 501 of the evaporation mask; the second light-emitting layer 221 of at least four second sub-pixels 220 belonging to at least four pixel units 200 and at least four adjacent second sub-pixels is prepared through the same second mask opening 502 of the evaporation mask; the third light-emitting layer 231 of at least two pixel units and at least two adjacent third sub-pixels 230 is prepared through the same third mask opening 503 of the evaporation mask.

[0193] For example, Fig.24 A schematic diagram of a partial arrangement of sub-pixels of another display panel provided in an embodiment of the present application. Fig.24As shown, the first light-emitting layers 211 of the four first sub-pixels 210 are prepared synchronously through a first mask opening 501, the second light-emitting layers 221 of the four second sub-pixels 220 are prepared synchronously through a second mask opening 502, and the third light-emitting layers 231 of the two third sub-pixels 230 are prepared synchronously through a third mask opening 503. The distance between the first mask opening 501 and the second mask opening 502 is greater than 0, the corresponding first light-emitting layers 211 and second light-emitting layers 221 do not overlap, the first mask opening 501 and the third mask opening 503 are tangent to each other in the virtual rectangle 205, and the second mask opening 502 and the third mask opening 503 are tangent to each other in the virtual rectangle 205. A second mask opening 502 has two tangent points with an adjacent third mask opening 503. The tangency of the mask openings can reduce the contact circumference between the mask openings. The smaller the contact circumference between adjacent mask openings, the smaller the contact length of the prepared light-emitting layer, or the overlapping area of ​​the prepared light-emitting layer is smaller, or even the corresponding light-emitting layers prepared are tangent. The tangency of the mask openings can prepare tangent light-emitting layers or adjacent light-emitting layers with a small overlapping area, which can reduce the risk of light mixing of the light-emitting layers.

[0194] refer to Fig.24 The first light-emitting layer 211 prepared through the same first mask opening 501 can cover the four first pixel openings 212 belonging to the four pixel units 200, the second light-emitting layer 221 prepared through the same second mask opening 502 can cover the two second pixel openings 222 belonging to the four pixel units 200, and the third light-emitting layer 231 prepared through the same third mask opening 503 can cover the two third pixel openings 232 belonging to the two pixel units 200.

[0195] For example, Fig.25 A schematic partial structural diagram of another first evaporation mask provided in an embodiment of the present application. Fig.24 and Fig.25 The first evaporation mask plate 510 includes a first mask opening 501 , and the corresponding relationship between the first mask opening 501 and the first pixel opening 212 is one to four.

[0196] For example, Fig.26 A schematic partial structural diagram of another second evaporation mask provided in an embodiment of the present application. Fig. 22 and Fig.26 The second evaporation mask plate 520 includes a second mask opening 502 , and the corresponding relationship between the second mask opening 502 and the second pixel opening 222 is one to two.

[0197] For example, Fig. 27 A schematic partial structural diagram of another second evaporation mask provided in an embodiment of the present application. Fig.24 and Fig. 27 The second evaporation mask plate 520 includes a second mask opening 502 , and the corresponding relationship between the second mask opening 502 and the second pixel opening 222 is one to four.

[0198] For example, Fig.28 A schematic partial structural diagram of another third evaporation mask provided in an embodiment of the present application. Fig.24 and Fig.28 The third evaporation mask plate 530 includes a third mask opening 503 , and the corresponding relationship between the third mask opening 503 and the third pixel opening 232 is one to two.

[0199] It should be noted that Fig.25 The first evaporation mask 510 shown, Fig. 27 The second evaporation mask 520 and Fig.28 The third evaporation mask plate 530 can form a group of evaporation mask plates for preparing Fig.24 The light-emitting layer of the display panel is shown. Fig.25 The first evaporation mask 510 shown, Fig.26 The second evaporation mask 520 and Fig.28 The third evaporation mask plate 530 can form a group of evaporation mask plates for preparing Fig. 22 The light-emitting layer of the display panel is shown.

[0200] In some embodiments, Fig.29 This is a schematic structural diagram of a display panel provided in an embodiment of the present application. Fig.29 As shown, the display panel includes a display area 110, a non-display area 120 and a functional area 130. The non-display area 120 surrounds the display area 110, and the display area 110 surrounds the functional area 130. A plurality of pixel units are arranged in the display area 110, and the pixel units include a plurality of sub-pixels, such as Figure 2 As shown, the pixel unit 200 includes a first sub-pixel 210, a second sub-pixel 220 and a third sub-pixel 230, and the display area 110 is used to display the image. The non-display area 120 is provided with a driving signal circuit and other circuits, and the functional area 130 can be used to set up functional devices such as a camera.

[0201] In some embodiments, a boundary of a display area of ​​the display panel includes at least one curved boundary, and the curved edges of the sub-pixels are arranged toward the curved boundary.

[0202] For example, Fig.29As shown, the functional area 130 may include a pixel unit 200, so that when the functional device is not running, the functional area 130 can display the picture normally, which can improve the screen ratio of the display panel. The boundary between the display area 110 and the non-display area 120 includes a first special-shaped display boundary L01, and the boundary between the display area 110 and the functional area 130 includes a second special-shaped display boundary L02. The first special-shaped display boundary L01 is a curved boundary, and the second special-shaped display boundary L02 is an arc boundary. Fig.29 The display panel shown is quasi-rectangular, and the four corners of the display panel are curved.

[0203] For example, Fig.30 This is a schematic structural diagram of another display panel provided in an embodiment of the present application. Fig.30 As shown, the display panel is circular in shape, the display area 110 is a circular boundary, and the boundary between the display area 110 and the non-display area 120 includes a third special-shaped display boundary L03 , which is a circular edge.

[0204] For example, Fig.31 This is a schematic partial structural diagram of a display area of ​​a display panel provided in an embodiment of the present application. Fig.31 As shown, the boundary of the display area 110 includes a special-shaped display boundary L0, and the special-shaped display boundary L0 includes a curved boundary. Fig.29 and Fig.30 , the irregular display boundary L0 may include a first irregular display boundary L01, a second irregular display boundary L02, and a third irregular display boundary L03. The pixel opening shapes of the first sub-pixel 210, the second sub-pixel 220, and the third sub-pixel 230 are all circular, and the curved edge L1 of the sub-pixel is an arc-shaped boundary. The bending direction of the curved edge L1 of the irregular display boundary L0 is the same as the bending direction of the curved edge L1, that is, the center of the circle formed by the bending of the irregular display boundary L0 and the center of the pixel opening of the sub-pixel are located on the same side of the irregular display boundary L0.

[0205] Exemplary, reference Fig.31 , the distance between the irregular display boundary L0 and the pixel opening of the sub-pixel is greater than 0. Exemplarily, Fig.32 This is a schematic partial structural diagram of another display panel display area provided in an embodiment of the present application. Fig.32 As shown, the irregular display boundary L0 passes through the pixel opening. Fig.31 and Fig.32 The positional relationship of the irregular display boundary L0 is only illustrative and is not intended to be a specific limitation of the embodiments of the present application.

[0206] The display panel provided in the embodiment of the present application, with respect to the setting of the irregular display boundary, sets the bending direction of the curve of the irregular display boundary L0 to be the same as the bending direction of the curve edge L1, which can further make the shape of the curve edge L1 and the irregular display boundary L0 adapt to each other, which can further improve the jagged feeling of the display picture of the irregular display boundary, and can improve the display effect of the display panel.

[0207] In some embodiments, Fig.33 A schematic partial structural diagram of another display area of ​​a display panel provided in an embodiment of the present application. Fig.33 As shown, the shape of the pixel opening includes a curved edge L1 and a right-angle edge L2, the right-angle edge L2 is connected to the curved edge L1, and the curved edge L1 is arranged close to the irregular display boundary L0 relative to the right-angle edge L2. The setting of the curved edge L1 can improve the jagged feeling of the display screen due to the rectangular sub-pixel at the irregular display boundary L0, and the setting of the right-angle edge L2 can be combined with various pixel arrangement schemes, and can also take into account the preparation accuracy of the evaporation mask.

[0208] In some embodiments, Fig.34 A schematic partial structural diagram of a display area of ​​another display panel provided in an embodiment of the present application. Fig.34 As shown, the curvature of the curved edge L1 is the same as the curvature of the curved boundary, that is, the curvature of the curved edge L1 is the same as the curvature of the special-shaped display boundary L0, which can further improve the shape adaptability of matching the special-shaped display boundary L0 with the curved edge L1 and better improve the jagged feeling of the display picture at the display boundary.

[0209] In some embodiments, Fig.35 This is a schematic structural diagram of a display area of ​​a display panel provided in an embodiment of the present application. Fig.35 As shown, the display area 110 includes a first area 111 and a second area 112. The second area 112 is arranged on a side of the first area 111 away from the curved boundary, that is, the second area 112 is arranged on a side of the first area 111 away from the irregular display boundary L0; the curved boundary coincides with the boundary of the first area 111 away from the second area 112, that is, the irregular display boundary L0 is the boundary of the first area 111 away from the second area 112. The orthographic projection shape of the pixel opening of the first area 111 on the substrate layer 100 includes a curved edge L1. Fig.35 As shown, the shapes of the pixel openings of all sub-pixels 201 in the first area 111 are circular. The shapes of the pixel openings in the first area 111 and the shapes of the pixel openings in the second area 112. By setting the first area 111, the shapes of the pixel openings in the first area 111 and the irregular display boundary L0 can be adapted to improve the jagged edge feeling of the display screen.

[0210] In some embodiments, Fig.36 This is a schematic structural diagram of another display panel display area provided in an embodiment of the present application. Fig.36 As shown, the display area 110 includes a first area 111 and a second area 112. The second area 112 is arranged on a side of the first area 111 away from the curved boundary, that is, the second area 112 is arranged on a side of the first area 111 away from the irregular display boundary L0; the curved boundary coincides with a portion of the boundary of the first area 111 away from the second area 112. The orthographic projection shape of the pixel opening of the sub-pixel 201 of the first area 111 on the substrate layer 100 includes a curved edge L1. Fig.35 As shown, the pixel openings of all sub-pixels 201 in the first area 111 are circular in shape. The pixel openings of the sub-pixels 201 in the second area 112 are rectangular in shape, and the shape of the pixel openings can be adaptively set according to the shape of different display areas on the basis of improving the jagged edge sense of the display screen of the special-shaped display panel.

[0211] Exemplarily, the shape of the pixel opening in the first region 111 may also include an ellipse.

[0212] In a second aspect of an embodiment of the present application, a display device is provided. Fig.37 Schematic diagram of a display device provided in an embodiment of the present application. Fig.37 As shown, the display device includes: the display panel 1000 provided in the first aspect. Exemplarily, the display device may also include a device housing and a control mainboard, the display panel 1000 and the control mainboard are arranged in the device housing, and the control mainboard is electrically connected to the display panel 1000.

[0213] It should be noted that the display device provided in the embodiment of the present application can be applied to smart phones, laptops, tablet computers, televisions, smart wearable devices, etc. For example, smart wearable devices may include smart watches, VR devices, AR devices, etc., and the embodiment of the present application does not make specific limitations.

[0214] The display device provided in the embodiment of the present application, by setting the shape of the positive projection of at least one of the first pixel opening 212, the second pixel opening 222 and the third pixel opening 232 of the display panel 1000 on the substrate layer 100 to include a curved edge L1, for the irregular display boundary, by setting the curved edge L1, the edge of the sub-pixel output light of the irregular display boundary can be a smooth curved boundary, which can improve or even eliminate the jagged feeling of the display picture of the irregular display boundary, and can improve the display effect of the display panel. By setting the ratio of the first area S1, the second area S2 and the third area S3 to the area of ​​the positive projection of the first light-emitting layer 211, the second light-emitting layer 221 and the third light-emitting layer 231 on the substrate layer 100 to be greater than 80%, the area encircled by the virtual rectangle 205 corresponding to each pixel unit 200 has more than 80% of the area of ​​the light-emitting layer 202 of each sub-pixel, which can ensure that the pixel opening 301 in the virtual rectangle 205 corresponding to the pixel unit 200 fully fills the light-emitting layer 202 to ensure the effective light-emitting area of ​​each sub-pixel 201, thereby ensuring the light-emitting effect of the sub-pixel. Based on the first angle f being the smallest angle formed by each side of the virtual triangle 206 and the long side e of the virtual rectangle 205, the first sub-pixel 210 and the third sub-pixel 230 can be arranged alternately along the long side e of the virtual rectangle 205. The first sub-pixel 210 and the third sub-pixel 230 are alternately arranged along the long side e of the virtual rectangle 205, so that the sub-pixels on the long side e of the virtual rectangle 205 are arranged more closely, the distance between the first light-emitting layer 211 and the third light-emitting layer 231 is the shortest, and the overlapping area of ​​the light-emitting layers is also the largest, or the overlapping areas of the light-emitting layers of adjacent sub-pixels are equal, which can improve the compactness of the pixel arrangement of the display panel, thereby improving the resolution. The first sub-pixel 210 and the third sub-pixel 230 are alternately arranged on the long side e of the virtual rectangle 205, and the first geometric center a, the second geometric center b and the third geometric center c are connected in sequence to form a virtual triangle 206. Based on this arrangement of seed pixels, on the basis of the setting of the curved edge L1, the light-emitting boundary in the virtual rectangle 205 corresponding to the pixel unit 200 can be further rounded, and the jagged feeling of the display screen of the irregular display boundary can be further improved at the structural unit level of the pixel unit 200, and the display effect of the display panel can be further improved.

[0215] In a third aspect of the embodiment of the present application, a method for preparing a display panel is provided, referring to Figure 1 , the preparation method may include the following steps:

[0216] A back plate BP, an anode 203 and a pixel defining layer 300 are sequentially disposed on one side of the substrate layer 100 .

[0217] The evaporation mask is placed close to the pixel definition layer 300 , and the mask opening of the evaporation mask corresponds to the pixel opening 301 .

[0218] The light emitting layer material is disposed in the pixel opening 301 through the mask opening. It should be noted that the first light emitting layer 211, the second light emitting layer 221 and the third light emitting layer 231 can be prepared simultaneously or separately, which can be determined according to the mask opening setting of the evaporation mask.

[0219] Therefore, a layer 204 and an encapsulation layer 400 are arranged on the side of the light emitting layer away from the substrate layer 100 .

[0220] It should be noted that the method for preparing the display panel provided in the embodiment of the present application is only illustrative and is not intended to be a specific limitation of the present application.

[0221] It should be noted that in the above embodiments, the description of each embodiment has its own emphasis, and for parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0222] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

[0223] Although the preferred embodiments of this specification have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of this specification.

[0224] Obviously, those skilled in the art can make various changes and modifications to this specification without departing from the spirit and scope of this specification. Thus, if these modifications and variations of this specification fall within the scope of the claims of this specification and their equivalents, this specification is also intended to include these modifications and variations.

Claims

1. A display panel, characterized in that: include: substrate layer; A plurality of pixel units are arranged on one side of the substrate layer, and the pixel unit includes a first sub-pixel, a second sub-pixel and a third sub-pixel, and the first sub-pixel, the second sub-pixel and the third sub-pixel respectively include a first light-emitting layer, a second light-emitting layer and a third light-emitting layer, and the first light-emitting layer, the second light-emitting layer and the third light-emitting layer are used to emit light of different colors; The areas of the first light-emitting layer, the second light-emitting layer and the third light-emitting layer projected on the substrate layer within the virtual rectangle are respectively the first area, the second area and the third area, and the ratios of the first area, the second area and the third area to the corresponding areas of the first light-emitting layer, the second light-emitting layer and the third light-emitting layer projected on the substrate layer are both greater than or equal to 80%; In one of the pixel units, the orthographic projections of the pixel openings of the first sub-pixel, the second sub-pixel and the third sub-pixel on the substrate layer are all located within the virtual rectangle, and a line connecting the geometric centers of the orthographic projections of the pixel openings of the first sub-pixel, the second sub-pixel and the third sub-pixel on the substrate layer forms a virtual triangle, and an angle between a line connecting the geometric centers of the orthographic projections of the pixel openings of the first sub-pixel and the third sub-pixel on the substrate layer and a long side of the virtual rectangle is a first angle, and the first angle is the smallest angle among the angles formed by the sides of the virtual triangle and the long side of the virtual rectangle; In one of the pixel units, an overlapping area of ​​the orthographic projections of the first light-emitting layer and the third light-emitting layer on the substrate layer is a first overlapping area, an overlapping area of ​​the orthographic projections of the first light-emitting layer and the second light-emitting layer on the substrate layer is a second overlapping area, an overlapping area of ​​the orthographic projections of the second light-emitting layer and the third light-emitting layer on the substrate layer is a third overlapping area, and the second overlapping area and the third overlapping area are less than or equal to the first overlapping area; A shape of at least one of the pixel openings of the first sub-pixel, the second sub-pixel, and the third sub-pixel projected on the substrate layer includes at least a portion of a curved edge.

2. The display panel according to claim 1, characterized in that: In one of the pixel units, the minimum distance between the pixel opening of the first sub-pixel and the pixel opening of the third sub-pixel is a first distance, the minimum distance between the pixel opening of the first sub-pixel and the pixel opening of the second sub-pixel is a second distance, and the minimum distance between the pixel opening of the second sub-pixel and the pixel opening of the third sub-pixel is a third distance; The first distance is less than or equal to the second distance, and the first distance is less than or equal to the third distance.

3. The display panel according to claim 2, characterized in that: The second distance is greater than the third distance; and / or, The second overlapping area is smaller than or equal to the third overlapping area.

4. The display panel according to claim 2, characterized in that: A diagonal line of the virtual rectangle passes through the geometric center of the orthographic projection of the pixel openings of the first sub-pixel and the second sub-pixel on the substrate layer; and / or, Another diagonal line of the virtual rectangle does not overlap with the pixel opening of the first sub-pixel and the pixel opening of the second sub-pixel.

5. The display panel according to claim 2, characterized in that: The first sub-pixels are arranged continuously along a first direction, the first sub-pixels and the third sub-pixels are arranged alternately along a second direction, and the first sub-pixels and the second sub-pixels are arranged alternately along a third direction; The first direction intersects with the second direction, the first direction intersects with the third direction, and the second direction intersects with the third direction.

6. The display panel according to claim 5, characterized in that: The minimum distance between the pixel openings of two adjacent first sub-pixels belonging to different pixel units is a fourth distance; The minimum distance between the pixel openings of two adjacent second sub-pixels belonging to different pixel units is a fifth distance; The minimum distance between the pixel openings of two adjacent third sub-pixels belonging to different pixel units is a sixth distance; The fourth distance is less than or equal to the fifth distance, and the fourth distance is less than or equal to the sixth distance.

7. The display panel according to claim 5, characterized in that: The first direction is perpendicular to the second direction; An angle between the first direction and the third direction includes an acute angle.

8. The display panel according to claim 1, characterized in that: The first angle is less than or equal to 30°; and / or, The virtual triangle comprises an acute triangle; and / or, The ratio of the first overlapping area to the orthographic projection area of ​​the first light-emitting layer on the substrate layer is less than or equal to 10%.

9. The display panel according to claim 8, characterized in that: The first angle is equal to 0°.

10. The display panel according to claim 5, characterized in that: The orthographic projection area of ​​the pixel opening of the third sub-pixel on the substrate layer is smaller than the orthographic projection area of ​​the pixel opening of the first sub-pixel on the substrate layer; The orthographic projection area of ​​the pixel opening of the third sub-pixel on the substrate layer is smaller than the orthographic projection area of ​​the pixel opening of the second sub-pixel on the substrate layer.

11. The display panel according to claim 10, characterized in that: An orthographic projection area of ​​a pixel opening of the second sub-pixel on the substrate layer is smaller than an orthographic projection area of ​​a pixel opening of the first sub-pixel on the substrate layer.

12. The display panel according to claim 10, characterized in that: The pixel unit further includes a fourth sub-pixel, and the orthographic projection of the pixel opening of the fourth sub-pixel on the substrate layer is located within the virtual rectangle; In one of the pixel units, the geometric centers of the pixel openings of the first sub-pixel, the second sub-pixel, the third sub-pixel and the fourth sub-pixel are connected in sequence on the substrate layer to form a virtual quadrilateral.

13. The display panel according to claim 12, characterized in that: The fourth sub-pixel includes a fourth light-emitting layer, and the fourth light-emitting layer and the third light-emitting layer emit light of the same color.

14. The display panel according to claim 13, characterized in that: The orthographic projection area of ​​the pixel opening of the fourth sub-pixel on the substrate layer is smaller than the orthographic projection area of ​​the pixel opening of the first sub-pixel on the substrate layer; An orthographic projection area of ​​a pixel opening of the fourth sub-pixel on the substrate layer is smaller than an orthographic projection area of ​​a pixel opening of the second sub-pixel on the substrate layer.

15. The display panel according to claim 14, characterized in that: The orthographic projection area of ​​the pixel opening of the fourth sub-pixel on the substrate layer is smaller than or equal to the orthographic projection area of ​​the pixel opening of the third sub-pixel on the substrate layer.

16. The display panel according to claim 12, characterized in that: At least two sides of the virtual quadrilateral have different lengths; and / or, At least two sides of the virtual quadrilateral have the same length.

17. The display panel according to claim 12, characterized in that: In one of the pixel units, a line connecting the geometric centers of the orthographic projections of the pixel opening of the first sub-pixel and the pixel opening of the second sub-pixel on the substrate layer is a first line, and a line connecting the geometric centers of the orthographic projections of the pixel opening of the third sub-pixel and the pixel opening of the fourth sub-pixel on the substrate layer is a second line; In one of the pixel units, the first connecting line intersects with the second connecting line.

18. The display panel according to claim 17, characterized in that: In one of the pixel units, the first connection line is perpendicular to the second connection line; and / or, In one of the pixel units, the geometric centers of the orthographic projections of the pixel opening of the third sub-pixel and the pixel opening of the fourth sub-pixel on the substrate layer are symmetrical about the second connecting line.

19. The display panel according to claim 1, characterized in that: The orthographic projection of the first light-emitting layer on the substrate layer is tangent to the orthographic projection of the second light-emitting layer on the substrate layer; and / or, The orthographic projection of the first light-emitting layer on the substrate layer is tangent to the orthographic projection of the third light-emitting layer on the substrate layer; and / or, The orthographic projection of the second light-emitting layer on the substrate layer is tangent to the orthographic projection of the third light-emitting layer on the substrate layer; and / or The orthographic projection of the first light-emitting layer on the substrate layer is tangent to at least one side of the virtual rectangle; and / or, The orthographic projection of the second light-emitting layer on the substrate layer is tangent to at least one side of the virtual rectangle; and / or, The orthographic projection of the third light-emitting layer on the substrate layer is tangent to at least one side of the virtual rectangle.

20. The display panel according to any one of claims 1 to 19, characterized in that: At least two light-emitting layers of sub-pixels emitting light of the same color are prepared through the same mask opening of the evaporation mask.

21. The display panel according to claim 20, characterized in that: At least four light-emitting layers of sub-pixels emitting light of the same color are prepared through the same mask opening of the evaporation mask.

22. The display panel according to claim 20, characterized in that: The light-emitting layers of at least two adjacent first sub-pixels belonging to at least two of the pixel units are prepared through the same first mask opening of the evaporation mask; The light-emitting layers of at least two adjacent second sub-pixels belonging to at least two of the pixel units are prepared through the same second mask opening of the evaporation mask.

23. The display panel according to claim 22, characterized in that: The light-emitting layers of at least four adjacent first sub-pixels belonging to at least four of the pixel units are prepared through the same first mask opening of the evaporation mask; The light-emitting layers of at least two adjacent second sub-pixels belonging to at least two of the pixel units are prepared through the same second mask opening of the evaporation mask; The light-emitting layers of at least two adjacent third sub-pixels belonging to at least two of the pixel units are prepared through the same third mask opening of the evaporation mask.

24. The display panel according to claim 22, characterized in that: The light-emitting layers of at least four adjacent first sub-pixels belonging to at least four of the pixel units are prepared through the same first mask opening of the evaporation mask; The light-emitting layers of at least four adjacent second sub-pixels belonging to at least four of the pixel units are prepared through the same second mask opening of the evaporation mask; The light-emitting layers of at least two adjacent third sub-pixels belonging to at least two of the pixel units are prepared through the same third mask opening of the evaporation mask.

25. The display panel according to claim 22, characterized in that: The light-emitting layers of two adjacent first sub-pixels belonging to two of the pixel units are prepared through the same first mask opening of the evaporation mask; The light-emitting layers of two adjacent second sub-pixels belonging to two of the pixel units are prepared through the same second mask opening of the evaporation mask; A light-emitting layer of the third sub-pixel is prepared through a third mask opening of the evaporation mask.

26. The display panel according to claim 20, characterized in that: The mask openings of the evaporation mask corresponding to at least two of the pixel openings within the virtual rectangle are tangent to each other.

27. The display panel according to claim 20, characterized in that: The mask opening of the evaporation mask corresponding to at least one pixel opening in the virtual rectangle is tangent to at least one side of the virtual rectangle.

28. The display panel according to claim 20, characterized in that: The boundary of the display area includes at least one curved boundary, and the curved edge is arranged toward the curved boundary.

29. The display panel according to claim 28, characterized in that: The display area includes a first area and a second area, and the second area is arranged on a side of the first area away from the curved boundary; The curved line boundary coincides with at least a portion of a boundary of the first region; An orthographic projection shape of the pixel opening of the first region on the substrate layer includes the curved edge.

30. The display panel according to claim 29, characterized in that: The shape of the pixel opening in the first area is the same as the shape of the pixel opening in the second area; and / or, The curved edge includes an arc edge; and / or, The curved line boundary includes an arc boundary; and / or, The shape of the pixel opening of the first area includes a right-angle edge connected to the curved edge.

31. The display panel according to claim 28, characterized in that: The curvature of the curved edge is the same as the curvature of the curved boundary.

32. The display panel according to claim 31, characterized in that: The curvature direction of the curved edge is the same as the curvature direction of the curved boundary.

33. The display panel according to claim 29, characterized in that: The shape of the pixel opening in the first area includes a circle and an ellipse.

34. A display device, characterized in that: include: A display panel as claimed in any one of claims 1 to 33.

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