Display substrate, pixel arrangement structure and display device

Abstract

The utility model discloses a display substrate, a pixel arrangement structure and a display device. The display substrate comprises a substrate body, a pixel limiting layer and a light-emitting device layer, the display substrate comprises a plurality of sub-pixels and is divided into a plurality of sub-pixel groups, and each sub-pixel group comprises a first color sub-pixel, a second color sub-pixel and a third color sub-pixel. The pixel openings of the third color sub-pixels of each sub-pixel group include M sub-pixel openings, and the pixel defining layer includes partition portions located between the M sub-pixel openings. The light-emitting function layers of the third color sub-pixels of the two adjacent sub-pixel groups in the first direction are integrated into a shared light-emitting function layer, and the shared light-emitting function layer of the two adjacent sub-pixel groups in the first direction comprises 2M sub-light-emitting parts located in the sub-pixel openings of the third color sub-pixels. The pixel openings are subjected to block design, the problem of dark spots can be solved, and the pixel aperture ratio can be increased by sharing the light-emitting functional layer.

Description

Technical Field

[0001] The embodiments of the present invention relate to a display substrate, a pixel arrangement structure and a display device. Background Art

[0002] Organic Light Emitting Diode (OLED) displays, as a new type of flat-panel display, are gaining increasing attention. Due to their active light emission, high brightness, high resolution, wide viewing angle, fast response, low energy consumption, and flexibility, they have become a popular mainstream display product in the market. Utility Model Content

[0003] At least one embodiment of the present invention provides a display substrate, comprising: a base substrate; a pixel defining layer located on the base substrate; and a light-emitting device layer located on the base substrate, wherein the display substrate comprises a plurality of sub-pixels, wherein the plurality of sub-pixels comprise a plurality of first-color sub-pixels, a plurality of second-color sub-pixels, and a plurality of third-color sub-pixels, wherein the plurality of sub-pixels are divided into a plurality of sub-pixel groups, each of the sub-pixel groups comprises a first-color sub-pixel, a second-color sub-pixel, and a third-color sub-pixel, wherein the plurality of sub-pixel groups are arranged in an array along a first direction and a second direction intersecting the first direction, wherein the first-color sub-pixels and the second-color sub-pixels of each sub-pixel group are arranged along the first direction, and the first-color sub-pixels and the third-color sub-pixels of each sub-pixel group are arranged along the second direction, and each sub-pixel comprises a pixel defining layer located on the base substrate. The pixel openings in the layer, the areas of the positive projections of the pixel openings of the third color sub-pixels on the substrate are larger than the areas of the positive projections of the pixel openings of the first color sub-pixels and the second color sub-pixels on the substrate, the pixel openings of the third color sub-pixels of each sub-pixel group include M sub-pixel openings, the pixel defining layer includes a partition located between the M sub-pixel openings, each sub-pixel also includes a light-emitting device located in the light-emitting device layer, the light-emitting device includes a light-emitting functional layer, the light-emitting functional layers of the two third color sub-pixels of the two sub-pixel groups adjacent to each other along the first direction are integrated into a common light-emitting functional layer, the common light-emitting functional layer of the two sub-pixel groups adjacent to each other along the first direction includes 2M sub-light-emitting portions located in the sub-pixel openings of the two third color sub-pixels, and M is a positive integer greater than 1.

[0004] For example, in the display substrate provided in one embodiment of the present invention, the two adjacent sub-pixel groups along the first direction include a first sub-pixel group and a second sub-pixel group, the light-emitting functional layer of the first sub-pixel group and the third color sub-pixel of the second sub-pixel group are integrated into the common light-emitting functional layer, the minimum spacing between two adjacent sub-pixel openings of the third color sub-pixel of the first sub-pixel group is a first spacing, the minimum spacing between the sub-pixel opening of the third color sub-pixel of the first sub-pixel group closest to the second sub-pixel group and the sub-pixel opening of the third color sub-pixel of the second sub-pixel group closest to the first pixel group is a second spacing, and the first spacing is equal to the second spacing.

[0005] For example, in the display substrate provided in one embodiment of the present invention, the two adjacent sub-pixel groups along the first direction include a first sub-pixel group and a second sub-pixel group, the light-emitting functional layer of the third color sub-pixel of the first sub-pixel group and the second sub-pixel group are integrated into the common light-emitting functional layer, the M sub-pixel openings of the third color sub-pixel of the first sub-pixel group include a first sub-pixel opening and a second sub-pixel opening arranged along the first direction, the first sub-pixel opening is located on the side of the second sub-pixel opening away from the second sub-pixel group, and the area of ​​the orthographic projection of the first sub-pixel opening on the base substrate is not larger than the area of ​​the orthographic projection of the second sub-pixel opening on the base substrate.

[0006] For example, in a display substrate provided in an embodiment of the present invention, the ratio of the area of ​​the orthographic projection of the second sub-pixel opening of the third color sub-pixel on the base substrate to the area of ​​the orthographic projection of the first sub-pixel opening on the base substrate is not less than 2.

[0007] For example, in a display substrate provided by an embodiment of the present invention, a dimension of the second sub-pixel opening along the first direction is not smaller than a dimension along the second direction.

[0008] For example, in the display substrate provided in one embodiment of the present invention, the M sub-pixel openings of the third color sub-pixel of the first sub-pixel group include two first sub-pixel openings and two second sub-pixel openings, the two first sub-pixel openings are arranged along the second direction, and the two second sub-pixel openings are arranged along the second direction.

[0009] For example, in a display substrate provided by an embodiment of the present invention, the M sub-pixel openings of the third color sub-pixels of the first sub-pixel group and the second sub-pixel group are symmetrical about an axis parallel to the second direction.

[0010] For example, in the display substrate provided in one embodiment of the present invention, the area of ​​the orthographic projection of the pixel opening of the second color sub-pixel of each sub-pixel group on the base substrate is larger than the area of ​​the orthographic projection of the pixel opening of the first color sub-pixel on the base substrate, and the pixel opening of the second color sub-pixel of each sub-pixel group includes M sub-pixel openings, and the arrangement of the M sub-pixel openings of the second color sub-pixel of each sub-pixel group is the same as the arrangement of the M sub-pixel openings of the third color sub-pixel.

[0011] For example, in the display substrate provided in one embodiment of the present invention, the pixel openings of the first color sub-pixel of each sub-pixel group include M sub-pixel openings, and the arrangement manner of the M sub-pixel openings of the first color sub-pixel of each sub-pixel group is the same as the M sub-pixel openings of the third color sub-pixel, the M sub-pixel openings of the first color sub-pixel of each sub-pixel group include a third sub-pixel opening and a fourth sub-pixel opening arranged along the first direction, and the M sub-pixel openings of the second color sub-pixel include a fifth sub-pixel opening and a sixth sub-pixel opening arranged along the first direction, the third sub-pixel opening is located on the side of the fourth sub-pixel opening away from the second color sub-pixel, and the sixth sub-pixel opening is located on the side of the fifth sub-pixel opening away from the first color sub-pixel, the area of ​​the third sub-pixel opening is not greater than the area of ​​the fourth sub-pixel opening, and the area of ​​the sixth sub-pixel opening is not greater than the area of ​​the fifth sub-pixel opening.

[0012] For example, in the display substrate provided in an embodiment of the present invention, the two adjacent sub-pixel groups along the first direction include a first sub-pixel group and a second sub-pixel group, the sub-pixel group adjacent to the first sub-pixel group along the second direction is a third sub-pixel group, and the sub-pixel group adjacent to the second sub-pixel group along the second direction is a fourth sub-pixel group, the light-emitting functional layers of the third color sub-pixels of the first sub-pixel group, the second sub-pixel group, the third sub-pixel group and the fourth sub-pixel group are integrated into a common light-emitting functional layer, the common light-emitting functional layer of the first sub-pixel group, the second sub-pixel group, the third sub-pixel group and the fourth sub-pixel group includes 4M sub-light-emitting portions located in the sub-pixel openings of the third color sub-pixels, and the M sub-pixel openings of the third color sub-pixels of the first sub-pixel group, the second sub-pixel group, the third sub-pixel group and the fourth sub-pixel group are symmetrical about an axis parallel to the first direction and an axis parallel to the second direction.

[0013] For example, in the display substrate provided in one embodiment of the present invention, the multiple sub-pixels are further divided into multiple sub-pixel columns, each of the sub-pixel columns includes a plurality of sub-pixels arranged along the first direction, the multiple sub-pixel columns include a first sub-pixel column, a second sub-pixel column, a third sub-pixel column and a fourth sub-pixel column arranged in sequence along the second direction, the first sub-pixel column includes a first color sub-pixel and a second color sub-pixel alternately arranged along the first direction, the multiple sub-pixels of the second sub-pixel column are repeatedly arranged along the first direction in the order of the first color sub-pixel, the second color sub-pixel, the third color sub-pixel and the third color sub-pixel, the sub-pixels of the third sub-pixel column are the third color sub-pixels, and the multiple sub-pixels of the fourth sub-pixel column are repeatedly arranged along the first direction in the order of the first color sub-pixel, the second color sub-pixel, the third color sub-pixel and the third color sub-pixel.

[0014] For example, in the display substrate provided in one embodiment of the present invention, the M sub-pixel openings of the third color sub-pixel of each sub-pixel group include two sub-pixel openings arranged along the first direction, and the two sub-pixel openings include a pair of adjacent edges facing each other, and the extension direction of at least one edge of the pair of adjacent edges intersects both the first direction and the second direction.

[0015] For example, in the display substrate provided in one embodiment of the present invention, the shape of the M sub-pixel openings of the third color sub-pixel of each sub-pixel group includes a polygon, and the polygon includes at least one side parallel to the first direction and one side parallel to the second direction.

[0016] For example, in the display substrate provided by an embodiment of the present invention, the minimum distance between two adjacent sub-pixel openings of the third color sub-pixels of each sub-pixel group is not less than 6 μm.

[0017] For example, in the display substrate provided in one embodiment of the present invention, the light-emitting device of each sub-pixel also includes a first electrode located on the side of the light-emitting functional layer close to the base substrate, the M sub-pixel openings of the third color sub-pixel are located within the orthographic projection of the first electrode of the light-emitting device of the third color sub-pixel on the base substrate, and the partition between the M sub-pixel openings at the orthographic projection of the base substrate at least partially overlaps with the orthographic projection of the first electrode of the light-emitting device of the third color sub-pixel on the base substrate.

[0018] For example, in the display substrate provided in one embodiment of the present invention, the light-emitting device of each sub-pixel also includes a first electrode located on the side of the light-emitting functional layer close to the base substrate, and the first electrode of the light-emitting device of the third color sub-pixel includes M sub-electrode portions spaced apart from each other and a connecting portion connecting the M sub-electrode portions to each other, and the M sub-electrode portions of the third color sub-pixel correspond one-to-one to the M sub-pixel openings, and the sub-pixel opening exposes at least a portion of the sub-electrode portion of the corresponding third color sub-pixel.

[0019] For example, in the display substrate provided in one embodiment of the present invention, the ratio of the area of ​​the pixel opening of the third color sub-pixel of each sub-pixel group projected on the base substrate to the total area of ​​the pixel openings of the sub-pixel group projected on the base substrate is in the range of 40%-60%.

[0020] For example, in a display substrate provided in an embodiment of the present invention, the value range of M is 2-10.

[0021] For example, in the display substrate provided in one embodiment of the present invention, it also includes: a color filter layer, located on the side of the light-emitting device layer away from the base substrate, each of the sub-pixels also includes a color filter pattern located in the color filter layer, and the pixel opening of each sub-pixel on the base substrate is projected within the base substrate.

[0022] For example, in the display substrate provided in one embodiment of the present invention, a black matrix layer is further included, and each sub-pixel also includes an avoidance opening located in the black matrix layer, and the pixel opening of each sub-pixel on the orthographic projection of the base substrate falls within the orthographic projection of the avoidance opening on the base substrate, and the avoidance opening of the third color sub-pixel includes multiple sub-avoidance openings, and the orthographic projection of one sub-pixel opening of the third color sub-pixel on the base substrate is located within the orthographic projection of one sub-avoidance opening on the base substrate, and the sub-pixel opening of the third color sub-pixel has the same shape as the sub-avoidance opening.

[0023] For example, in the display substrate provided in one embodiment of the present invention, the pixel opening of the first color sub-pixel includes two sub-pixel openings, and the orthographic projections of the two sub-pixel openings of the first color sub-pixel on the base substrate are located within the orthographic projection of the same avoidance opening on the base substrate, and / or the pixel opening of the second color sub-pixel includes two sub-pixel openings, and the orthographic projections of the two sub-pixel openings of the second color sub-pixel on the base substrate are located within the orthographic projection of the same avoidance opening on the base substrate.

[0024] At least one embodiment of the present invention provides a display substrate, comprising: a base substrate; a pixel defining layer located on the base substrate; a light-emitting device layer located on the base substrate; and a color filter layer located on a side of the light-emitting device layer away from the base substrate, wherein the display substrate comprises a plurality of sub-pixels, wherein the plurality of sub-pixels comprise a plurality of first-color sub-pixels, a plurality of second-color sub-pixels, and a plurality of third-color sub-pixels, wherein the plurality of sub-pixels are divided into a plurality of sub-pixel groups, each of the sub-pixel groups comprises a first-color sub-pixel, a second-color sub-pixel, and a third-color sub-pixel, and wherein the plurality of sub-pixel groups are arranged in an array along a first direction and a second direction intersecting the first direction. Arrangement, the first color sub-pixels and the second color sub-pixels of each sub-pixel group are arranged along the first direction, the first color sub-pixels and the third color sub-pixels of each sub-pixel group are arranged along the second direction, each sub-pixel includes a pixel opening located in the pixel defining layer, a light-emitting device located in the light-emitting device layer, and a color film pattern located in the color film layer, the orthographic projection of the pixel opening of each sub-pixel on the base substrate falls within the orthographic projection of the color film pattern on the base substrate, the orthographic projection of the pixel opening of each sub-pixel on the base substrate includes multiple arc segments, and the center of curvature of each point on each arc segment is located on the same side of the arc segment.

[0025] For example, in the display substrate provided in one embodiment of the present invention, the multiple arc segments of the pixel opening of the third color sub-pixel include a first arc segment and a second arc segment, the two ends of the first arc segment and the second arc segment are respectively connected, the first arc segment protrudes along the first direction and in a direction away from the second arc segment, the second arc segment protrudes along the first direction away from the first arc segment, the maximum dimension of the pixel opening of the third color sub-pixel along the first direction is a first dimension, the maximum dimension along the second direction is a second dimension, and the first dimension is larger than the second dimension.

[0026] For example, in the display substrate provided in one embodiment of the present invention, the shape of the first arc segment includes a part of an ellipse, the major axis of the ellipse where the first arc segment is located is parallel to the first direction, and the line connecting the two endpoints of the first arc segment is equal to the minor axis of the ellipse where the first arc segment is located.

[0027] For example, in the display substrate provided in one embodiment of the present invention, the shape of the second arc segment includes a part of a circle, and the line connecting the two endpoints of the second arc segment is equal to the diameter of the circle where the second arc segment is located, or the shape of the second arc segment includes a part of an ellipse, the major axis of the ellipse where the second arc segment is located is parallel to the second direction, and the line connecting the two endpoints of the second arc segment is equal to the major axis of the ellipse where the second arc segment is located.

[0028] For example, in the display substrate provided in one embodiment of the present invention, the two adjacent sub-pixel groups along the first direction include a first sub-pixel group and a second sub-pixel group, the sub-pixel group adjacent to the first sub-pixel group along the second direction is a third sub-pixel group, and the sub-pixel group adjacent to the second sub-pixel group along the second direction is a fourth sub-pixel group. The two opposing arc segments of the pixel openings of the third color sub-pixels of the first sub-pixel group and the second sub-pixel group are the second arc segments, and the two opposing arc segments of the pixel openings of the third sub-pixel and the third color sub-pixel of the fourth sub-pixel group are the first arc segments.

[0029] For example, in the display substrate provided in one embodiment of the present invention, the minimum spacing between the pixel openings of the third color sub-pixels of the first sub-pixel group and the second sub-pixel group is greater than the minimum spacing between the pixel openings of the third color sub-pixels of the third sub-pixel group and the fourth sub-pixel group.

[0030] For example, in the display substrate provided in one embodiment of the present invention, the geometric centers of the pixel openings of the third color sub-pixels of the first sub-pixel group, the second sub-pixel group, the third sub-pixel group and the fourth sub-pixel group are connected in sequence to form a quadrilateral, which includes a pair of sides that are opposite to each other and non-parallel.

[0031] For example, in the display substrate provided in one embodiment of the present invention, the orthographic projection of the pixel opening of at least one sub-pixel among the multiple sub-pixels on the base substrate also includes a plurality of raised line segments, each of the raised line segments is located between two adjacent arc segments and connects the two adjacent arc segments, and each of the raised line segments protrudes relative to the two adjacent arc segments in a direction away from the center of the pixel opening of the at least one sub-pixel.

[0032] For example, in the display substrate provided by an embodiment of the present invention, the pixel opening of the at least one sub-pixel is symmetrical about an axis parallel to the second direction and / or symmetrical about an axis parallel to the first direction.

[0033] For example, in the display substrate provided by an embodiment of the present invention, the multiple arc segments of the pixel opening of the at least one sub-pixel are located on the same virtual circle.

[0034] For example, in the display substrate provided by an embodiment of the present invention, each of the raised line segments has a maximum distance from the virtual circle, and the maximum distance is not less than 5 μm.

[0035] For example, in a display substrate provided in one embodiment of the present invention, the plurality of raised line segments are divided into a first group of raised line segments and a second group of raised line segments, the first group of raised line segments and the second group of raised line segments are symmetrical about an axis parallel to the second direction, the plurality of raised line segments of the first group of raised line segments are arranged at equal intervals, the plurality of raised line segments of the second group of raised line segments are arranged at equal intervals, and the length of the arc segment between the first group of raised line segments and the second group of raised line segments is greater than the length of the arc segment between two adjacent raised line segments in the first group of raised line segments.

[0036] For example, in the display substrate provided by an embodiment of the present invention, each of the raised line segments includes at least one of an arc segment and a straight line segment.

[0037] For example, in the display substrate provided in one embodiment of the present invention, the pixel opening of the third color sub-pixel of each of the sub-pixel groups includes a plurality of sub-pixel openings, the pixel defining layer includes a partition located between the plurality of sub-pixel openings, the orthographic projection of each of the sub-pixel openings of the third color sub-pixel on the base substrate includes at least one of the plurality of arc segments, and the orthographic projection of each of the sub-pixel openings of the third color sub-pixel on the base substrate also includes at least one straight line segment connected to the arc segment.

[0038] For example, in a display substrate provided in an embodiment of the present invention, the total length of the arc segments of each sub-pixel opening of the third color sub-pixel accounts for no less than 1 / 3 of the total perimeter of the orthographic projection of the sub-pixel opening on the base substrate.

[0039] For example, in the display substrate provided in one embodiment of the present invention, the multiple sub-pixel openings of the third color sub-pixel are arranged along the first direction, each sub-pixel opening includes two arc segments arranged along the second direction and opposite to each other, the center of curvature of each point on the two arc segments is located between the two arc segments, the two arc segments are connected by the at least one straight line segment, and the maximum dimension of each sub-pixel opening along the second direction is not less than the maximum dimension along the first direction.

[0040] For example, in the display substrate provided in one embodiment of the present invention, each sub-pixel opening of the third color sub-pixel includes a recessed portion, which is recessed toward the center of each sub-pixel opening, and the recessed portion is at least located on one side of each sub-pixel opening close to the adjacent sub-pixel opening.

[0041] For example, in the display substrate provided in one embodiment of the present invention, the orthographic projection of the recessed portion on the base substrate includes a bottom edge parallel to the second direction and two side edges parallel to the first direction, the length of the side edges of the recessed portion is smaller than the length of the bottom edge, and the ratio of the length of the bottom edge of the recessed portion to the maximum spacing between the two arc segments along the second direction is in the range of 1 / 6-5 / 6.

[0042] For example, in the display substrate provided in one embodiment of the present invention, each sub-pixel opening of the third color sub-pixel includes two concave portions arranged along the first direction, and the two concave portions are respectively located on both sides of each sub-pixel opening along the first direction.

[0043] For example, in the display substrate provided by an embodiment of the present invention, the two arc segments of each sub-pixel opening of the third color sub-pixel include or elliptical arcs and have the same shape.

[0044] For example, in a display substrate provided in an embodiment of the present invention, the orthographic projection of the pixel opening of the first color sub-pixel on the base substrate includes two arc segments arranged along the first direction and opposite to each other, and a straight line segment connecting the two arc segments; the center of curvature of each point on each arc segment of the pixel opening of the first color sub-pixel is located between the two arc segments; the pixel opening of the first color sub-pixel also includes two concave portions arranged along the second direction; the two concave portions of the pixel opening of the second color sub-pixel are located on both sides of the pixel opening along the second direction; the orthographic projection of the pixel opening of the second color sub-pixel on the base substrate includes two arc segments arranged along the first direction and opposite to each other, and a straight line segment connecting the two arc segments; the center of curvature of each point on each arc segment of the pixel opening of the second color sub-pixel is located between the two arc segments; the pixel opening of the second color sub-pixel also includes two concave portions; the two concave portions of the pixel opening of the first color sub-pixel are located on both sides of the pixel opening along the second direction.

[0045] For example, in the display substrate provided in one embodiment of the present invention, the orthographic projection of the concave portion of the pixel opening of the first color sub-pixel on the base substrate includes a bottom side parallel to the first direction and a side side parallel to the second direction, the concave portion of the pixel opening of the second color sub-pixel includes a bottom side parallel to the first direction and a side side parallel to the second direction, the area of ​​the orthographic projection of the pixel opening of the second color sub-pixel of each sub-pixel group on the base substrate is larger than the area of ​​the orthographic projection of the pixel opening of the first color sub-pixel on the base substrate, and the length of the bottom side of the concave portion of the pixel opening of the second color sub-pixel is larger than the length of the bottom side of the concave portion of the pixel opening of the first color sub-pixel.

[0046] For example, in the display substrate provided in one embodiment of the present invention, the multiple sub-pixel openings of the third color sub-pixel are arranged along the first direction, each sub-pixel opening includes an arc segment and a straight line segment connecting the two end points of the arc segment, and the two straight line segments of the two adjacent sub-pixel openings of the third color sub-pixel along the first direction face each other.

[0047] For example, in the display substrate provided in one embodiment of the present invention, the minimum spacing between two adjacent sub-pixel openings of the third color sub-pixels of each sub-pixel group is a first spacing, and the minimum spacing between the pixel openings of two third color sub-pixels of two adjacent sub-pixel groups along the first direction is a second spacing, and the first spacing is less than or equal to the second spacing.

[0048] For example, in the display substrate provided in one embodiment of the present invention, the pixel opening of the first color sub-pixel of each sub-pixel group includes two sub-pixel openings, each sub-pixel opening of the first color sub-pixel includes an arc segment and a straight line segment connecting the two end points of the arc segment, and the two straight line segments of the two sub-pixel openings of the first color sub-pixel adjacent along the first direction face each other, and / or the pixel opening of the second color sub-pixel of each sub-pixel group includes two sub-pixel openings, each sub-pixel opening of the second color sub-pixel includes an arc segment and a straight line segment connecting the two end points of the arc segment, and the two straight line segments of the two sub-pixel openings of the second color sub-pixel adjacent along the first direction face each other.

[0049] For example, in the display substrate provided in one embodiment of the present invention, the multiple sub-pixel openings of the third color sub-pixel are arranged in an array along the first direction and the second direction, each sub-pixel opening includes an arc segment and a straight line segment connecting the two end points of the arc segment, and the two straight line segments of the two sub-pixel openings arranged along the second direction face each other.

[0050] For example, in the display substrate provided by an embodiment of the present invention, the two arc segments of the two sub-pixel openings arranged along the second direction are located on the same virtual circle.

[0051] For example, in the display substrate provided in one embodiment of the present invention, the orthographic projection of each of the sub-pixel openings of the third color sub-pixel on the base substrate includes a fan shape, and the multiple sub-pixel openings include two first sub-pixel openings arranged along the first direction and two second sub-pixel openings arranged along the second direction, the vertices of the two first sub-pixel openings face each other, and the vertices of the two second sub-pixel openings face each other.

[0052] For example, in a display substrate provided by an embodiment of the present invention, the distance between the two first sub-pixel openings is not less than the distance between the two second sub-pixel openings.

[0053] For example, in the display substrate provided in one embodiment of the present invention, the arc segments of the sub-pixel openings of the third color sub-pixels are located on the same virtual circle, or the arc segments of the sub-pixel openings of the third color sub-pixels are located on the same virtual ellipse, or the diameters of the circles on which the arc segments of the sub-pixel openings of the third color sub-pixels are located are the same.

[0054] For example, in a display substrate provided in an embodiment of the present invention, the orthographic projection of the pixel opening of the third color sub-pixel on the base substrate is larger than the orthographic projections of the pixel openings of the first color sub-pixel and the second color sub-pixel on the base substrate.

[0055] For example, the display substrate provided in one embodiment of the present invention further includes a black matrix layer, wherein each of the sub-pixels also includes an avoidance opening located in the black matrix layer, and the pixel opening of each sub-pixel on the orthographic projection of the base substrate falls within the orthographic projection of the avoidance opening on the base substrate, the avoidance opening of the third color sub-pixel includes multiple sub-avoidance openings, and the orthographic projection of one sub-pixel opening of the third color sub-pixel on the base substrate is located within the orthographic projection of one sub-avoidance opening on the base substrate, and the sub-pixel opening of the third color sub-pixel has the same shape as the sub-avoidance opening.

[0056] For example, in the display substrate provided in one embodiment of the present invention, the pixel opening of the first color sub-pixel includes two sub-pixel openings, and the orthographic projections of the two sub-pixel openings of the first color sub-pixel on the base substrate are located within the orthographic projection of the same avoidance opening on the base substrate, and / or the pixel opening of the second color sub-pixel includes two sub-pixel openings, and the orthographic projections of the two sub-pixel openings of the second color sub-pixel on the base substrate are located within the orthographic projection of the same avoidance opening on the base substrate.

[0057] For example, in the display substrate provided in one embodiment of the present invention, the ratio of the area of ​​the pixel opening of the third color sub-pixel of each sub-pixel group projected on the base substrate to the total area of ​​the pixel openings of the sub-pixel group projected on the base substrate is in the range of 40%-60%.

[0058] At least one embodiment of the present invention provides a pixel arrangement structure, comprising: a plurality of minimum repeating units, arranged in an array along a first direction and a second direction intersecting the first direction, wherein each of the minimum repeating units comprises a first color sub-pixel block, a second color sub-pixel block, and a third color sub-pixel block, the first color sub-pixel block and the second color sub-pixel block are arranged along the first direction, the first color sub-pixel block and the third color sub-pixel block are arranged along the second direction, the third color sub-pixel block comprises two third color sub-pixel blocks arranged along the first direction, the two third color sub-pixel blocks comprise a pair of adjacent edges facing each other, and an extension direction of at least one of the pair of adjacent edges of the third color sub-pixel block intersects both the first direction and the second direction.

[0059] For example, in the pixel arrangement structure provided in an embodiment of the present invention, the angle between at least one side of the pair of adjacent sides of the third color sub-pixel block and the first direction is in the range of 30 degrees to 60 degrees.

[0060] For example, in the pixel arrangement structure provided in an embodiment of the present invention, the shape of the third color sub-pixel sub-block includes a polygon, and the polygon includes at least one side parallel to the first direction and at least one side parallel to the second direction.

[0061] For example, in the pixel arrangement structure provided in one embodiment of the present invention, the first color sub-pixel block includes two first color sub-pixel blocks, the two first color sub-pixel blocks include a pair of adjacent edges facing each other, and the extension direction of at least one of the pair of adjacent edges of the first color sub-pixel block intersects both the first direction and the second direction; the second color sub-pixel block includes two second color sub-pixel blocks, the two second color sub-pixel blocks include a pair of adjacent edges facing each other, and the extension direction of at least one of the pair of adjacent edges of the second color sub-pixel block intersects both the first direction and the second direction.

[0062] 60. The pixel arrangement structure according to claim 59, wherein the pair of adjacent sides of the first color sub-pixel block, the pair of adjacent sides of the second color sub-pixel block, and the pair of adjacent sides of the third color sub-pixel block are parallel to each other.

[0063] For example, in the pixel arrangement structure provided in one embodiment of the present invention, the sum of the areas of the two third color sub-pixel sub-blocks is greater than the sum of the areas of the two first color sub-pixel sub-blocks, and greater than the sum of the areas of the two second color sub-pixel sub-blocks, the shape of the first color sub-pixel sub-block includes a triangle, the shape of the second color sub-pixel sub-block includes a triangle, and the shape of the third color sub-pixel sub-block includes a trapezoid.

[0064] At least one embodiment of the present invention provides a display device including the above-mentioned display substrate.

[0065] According to the display substrate provided by the embodiment of the utility model, the pixel opening is designed in blocks, which can solve the dark spot problem and increase the pixel opening ratio by designing a shared light-emitting functional layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present invention, rather than limiting the present invention.

[0067] Figure 1 A schematic diagram of a traditional SRGB pixel layout;

[0068] Figure 2 This is a defective image of a medium and large product using SRGB pixel arrangement;

[0069] Figure 3 A schematic plan view of a display substrate provided by an embodiment of the present utility model;

[0070] Figure 4A for Figure 3A schematic cross-sectional view along section line EE;

[0071] Figure 4B for Figure 3 Another schematic cross-sectional view along section line EE;

[0072] Figure 5A Another schematic plan view of a display substrate provided by an embodiment of the present utility model;

[0073] Figure 5B for Figure 5A A schematic cross-sectional view along section line HH;

[0074] Figure 6 Another schematic plan view of a display substrate provided by an embodiment of the present utility model;

[0075] Figure 7 Another schematic plan view of a display substrate provided by an embodiment of the present utility model;

[0076] Figure 8 Another schematic plan view of a display substrate provided by an embodiment of the present utility model;

[0077] Figure 9 A schematic diagram of a planar structure of a first electrode of a display substrate provided by an embodiment of the present utility model;

[0078] Figure 10A A schematic planar structural diagram of another first electrode of a display substrate provided by an embodiment of the present utility model;

[0079] Figure 10B for Figure 10A A schematic cross-sectional view along the cutting line FF;

[0080] Figure 11A A schematic plan view of a display substrate provided by an embodiment of the present utility model;

[0081] Figure 11B for Figure 11A Schematic cross section along section line GG;

[0082] Figure 12 11 is a schematic cross-sectional view along section line GG;

[0083] Figure 13 Another schematic plan view of a display substrate provided by an embodiment of the present utility model;

[0084] Figure 14 Another schematic plan view of a display substrate provided by an embodiment of the present utility model;

[0085] Figure 15Another schematic plan view of a display substrate provided by an embodiment of the present utility model;

[0086] Figure 16 Another schematic plan view of a display substrate provided by an embodiment of the present utility model;

[0087] Figure 17 Another schematic plan view of a display substrate provided by an embodiment of the present utility model;

[0088] Figure 18 Another schematic plan view of a display substrate provided by an embodiment of the present utility model;

[0089] Figure 19 Another schematic plan view of a display substrate provided by an embodiment of the present utility model;

[0090] Figure 20 Another schematic plan view of a display substrate provided by an embodiment of the present invention; and

[0091] Figure 21 A schematic diagram of an embodiment of the present invention. DETAILED DESCRIPTION

[0092] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0093] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the usual meanings understood by persons of ordinary skill in the field to which this utility model belongs. The words "first", "second" and similar terms used in this utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0094] The various components or structures in the drawings are not drawn strictly to scale. For the sake of clarity, the sizes of various components or structures may be exaggerated or reduced, but this should not be used to limit the scope of the present invention. In order to keep the following description of the embodiments of the present invention clear and concise, detailed descriptions of known functions and known components may be omitted.

[0095] Unless otherwise defined, the features such as "parallel", "perpendicular" and "same" used in the embodiments of the present invention include the situations of "parallel", "perpendicular", "same" in a strict sense, as well as the situations of "approximately parallel", "approximately perpendicular", "approximately the same" and the like which contain certain errors. For example, the above-mentioned "approximately" may mean that the difference between the compared objects is 10% of the average value of the compared objects, or within 5%. When the number of a component or element is not specifically indicated below in the embodiments of the present invention, it means that the component or element may be one or more, or may be understood as at least one. "At least one" refers to one or more, and "multiple" refers to at least two. The "same-layer arrangement" in the embodiments of the present invention refers to the relationship between multiple film layers formed by the same material after the same step (for example, a one-step patterning process). The "same layer" here does not always mean that the thickness of multiple film layers is the same or the height of multiple film layers in the cross-sectional view is the same.

[0096] Figure 1 This is a schematic diagram of a traditional SRGB pixel arrangement. Figure 1 As shown, R pixels and G pixels are in one column, and B pixels are in another column. The area of ​​the pixel openings of each color pixel is affected by the lifespan of the light-emitting material of each color. Typically, the area of ​​the pixel opening R01 of the R pixel is smaller than the area of ​​the pixel opening G01 of the G pixel, and the area of ​​the pixel opening G01 of the G pixel is smaller than the area of ​​the pixel opening B01 of the B pixel. The light-emitting functional layer B02 of two adjacent B pixels is formed by two mask openings in the mask. Due to the minimum size of the rib between two adjacent mask openings in the mask, there is a large unused area between the light-emitting functional layers B02 of two adjacent B pixels (see the area circled by the dotted line in the figure).

[0097] Currently, the incidence of dark spots in medium and large products using the SRGB pixel arrangement is much higher than that in mobile phone products using the Blue Diamond pixel arrangement. Through the analysis of defective products, it was found that in the SRGB pixel arrangement, the larger the B pixel area, the higher the incidence of dark spots.

[0098] Figure 2 This is a defective image of a medium and large product using SRGB pixel arrangement. Figure 2As shown, due to the large pixel opening area of ​​the B pixel and the large area of ​​the light-emitting portion within the pixel opening, the gas in the underlying planarization layer 01 of the B pixel is not easily released, causing corrosion of the anode 02. After high-temperature processes such as oven baking, the Ag inside the anode 02 grows and migrates, breaking through the light-emitting material layer 03 and connecting to the cathode 04, resulting in a dark spot. Since the pixel opening and light-emitting portion of the B pixel are the largest, the probability of a dark spot occurring in the B pixel exceeds 95%.

[0099] Embodiments of the present invention provide a display substrate, a pixel arrangement structure, and a display device. The display substrate includes a base substrate, a pixel defining layer, and a light-emitting device layer, wherein the pixel defining layer and the light-emitting device layer are located on the base substrate. The display substrate includes a plurality of sub-pixels, each including a plurality of first-color sub-pixels, a plurality of second-color sub-pixels, and a plurality of third-color sub-pixels. The plurality of sub-pixels are divided into a plurality of sub-pixel groups, each including a first-color sub-pixel, a second-color sub-pixel, and a third-color sub-pixel. The plurality of sub-pixel groups are arranged in an array along a first direction and a second direction intersecting the first direction. The first-color sub-pixels and the second-color sub-pixels of each sub-pixel group are arranged along the first direction, and the first-color sub-pixels and the third-color sub-pixels of each sub-pixel group are arranged along the second direction. Each sub-pixel includes a pixel opening in the pixel defining layer, wherein the orthographic projection area of ​​the pixel opening of the third-color sub-pixel on the base substrate is larger than the orthographic projection area of ​​the pixel opening of the first-color sub-pixel and the second-color sub-pixel on the base substrate. The pixel opening of the third-color sub-pixel in each sub-pixel group includes M sub-pixel openings, and the pixel defining layer includes a partition located between the M sub-pixel openings. Each sub-pixel also includes a light-emitting device located in the light-emitting device layer, the light-emitting device includes a light-emitting functional layer, the light-emitting functional layers of the two third-color sub-pixels of the two sub-pixel groups adjacent along the first direction are integrated into a common light-emitting functional layer, and the common light-emitting functional layer of the two sub-pixel groups adjacent along the first direction includes 2M sub-light-emitting portions located in the sub-pixel openings of the two third-color sub-pixels, where M is a positive integer greater than 1.

[0100] In the display substrate provided by the embodiments of the present invention, the third-color subpixel in each subpixel group has the largest pixel opening area. The pixel openings of the third-color subpixels are designed in a block-like manner, such that the pixel openings of the third-color subpixels include multiple subpixel openings, with two adjacent subpixel openings separated by a partition of the pixel-defining layer. This reduces the area of ​​a single subpixel opening in the third-color subpixel, as well as the area of ​​the sub-luminescent portion of the third-color subpixel located within the subpixel opening. This avoids the dark spot problem caused by excessively large single subpixel openings and sub-luminescent portions of the third-color subpixels.

[0101] In the display substrate provided by an embodiment of the present invention, the light-emitting functional layers of two third-color sub-pixels in two adjacent sub-pixel groups along a first direction are integrated into a shared light-emitting functional layer. The light-emitting functional layers of the two third-color sub-pixels in the two adjacent sub-pixel groups are formed through the same mask opening of the same mask plate. Thus, the shared light-emitting functional layer can utilize the area between the two third-color sub-pixels in the two adjacent sub-pixel groups, allowing the shared light-emitting functional layer to have a larger area. The pixel openings of the third-color sub-pixels in each sub-pixel group include M sub-pixel openings, and the shared light-emitting functional layer includes 2M sub-light-emitting portions located within the sub-pixel openings. The larger area of ​​the shared light-emitting functional layer can increase the sum of the areas of the sub-light-emitting portions within the light-emitting functional layer, thereby increasing the pixel aperture ratio of the third-color sub-pixels in each sub-pixel group. The pixel opening area occupied by the provision of the separator can be compensated by the provision of the shared light-emitting functional layer. This not only avoids the dark spot problem caused by the excessively large individual sub-pixel openings and sub-light-emitting portions of the third-color sub-pixels, but also increases the pixel aperture ratio of the third-color sub-pixels, thereby improving the overall display quality and display efficiency.

[0102] The display substrate, pixel arrangement structure and display device provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0103] An embodiment of the present invention provides a display substrate. Figure 3 A schematic plan view of a display substrate provided by an embodiment of the present utility model; Figure 4A for Figure 3 Schematic diagram of the cross section along the section line EE. Figure 3 and Figure 4AAs shown, the display substrate includes a base substrate 110, a pixel-defining layer 120, and a light-emitting device layer. The pixel-defining layer 120 and the light-emitting device layer are located on the base substrate 110. The display substrate includes a plurality of sub-pixels, each of which includes a plurality of first-color sub-pixels PX01, a plurality of second-color sub-pixels PX02, and a plurality of third-color sub-pixels PX03. The plurality of sub-pixels are divided into a plurality of sub-pixel groups, each of which includes one first-color sub-pixel PX01, one second-color sub-pixel PX02, and one third-color sub-pixel PX03. The plurality of sub-pixel groups are arranged in an array along a first direction X and a second direction Y intersecting the first direction X. The first-color sub-pixels PX01 and the second-color sub-pixels PX02 of each sub-pixel group are arranged along the first direction X, and the first-color sub-pixels PX01 and the third-color sub-pixels PX03 of each sub-pixel group are arranged along the second direction Y. Each subpixel includes a pixel opening 121 located in the pixel defining layer 120. The orthographic projection area of ​​the pixel opening 121 of the third color subpixel PX03 on the substrate 110 is larger than the orthographic projection areas of the pixel openings 121 of the first color subpixel PX01 and the second color subpixel PX02 on the substrate 110. The pixel openings 121 of the third color subpixel PX03 in each subpixel group include M subpixel openings 1210, and the pixel defining layer 120 includes partitions 122 located between the M subpixel openings 1210. Each subpixel also includes a light-emitting device EM located in the light-emitting device layer. The light-emitting device EM includes a light-emitting function layer 131.

[0104] For example, Figure 4A As shown, the light-emitting device EM further includes a first electrode 132 and a second electrode 133. The first electrode 132 is located on the side of the light-emitting functional layer 131 that is closer to the base substrate 110. For example, the first electrode is an anode, and the second electrode is a cathode. For example, the display substrate further includes a pixel driving circuit layer 140, which is located on the side of the pixel defining layer 120 that is closer to the base substrate 110. Each sub-pixel further includes a pixel driving circuit located in the pixel driving circuit layer 140, which is connected to the first electrode 132 to drive the light-emitting device EM.

[0105] like Figure 3 and Figure 4AAs shown, the light-emitting functional layers 131 of the two third-color sub-pixels PX03 of two adjacent sub-pixel groups along the first direction X are integrated into a common light-emitting functional layer 1310. The common light-emitting functional layer 1310 of the two adjacent sub-pixel groups along the first direction X includes 2M sub-light-emitting portions 1311 located in the sub-pixel openings 1210 of the two third-color sub-pixels PX03, where M is a positive integer greater than 1. The figure schematically shows that the pixel opening 121 of the third-color sub-pixel PX03 includes two sub-pixel openings 1210, and the common light-emitting functional layer 1310 includes four sub-light-emitting portions 1311 located in the sub-pixel opening 1210 of the third-color sub-pixel PX03. However, the embodiment of the present utility model does not limit the value of M. For example, the value range of M is 2-10. For example, M can be 3, 4, 5, 6, 7, 8, 9, etc. The orthographic projection area of ​​the pixel opening 121 of the third color sub-pixel PX03 on the substrate 110 is equal to the sum of the orthographic projection areas of the M sub-pixel openings 1210 on the substrate 110. The third direction Z in the figure is perpendicular to the first direction X and the second direction Y.

[0106] In the display substrate provided by the embodiments of the present invention, the third-color subpixel in each subpixel group has the largest pixel opening area. The pixel openings of the third-color subpixels are designed in a block-like manner, such that the pixel openings of the third-color subpixels include multiple subpixel openings, with two adjacent subpixel openings separated by a partition of the pixel-defining layer. This reduces the area of ​​a single subpixel opening in the third-color subpixel, as well as the area of ​​the sub-luminescent portion of the third-color subpixel located within the subpixel opening. This avoids the dark spot problem caused by excessively large single subpixel openings and sub-luminescent portions of the third-color subpixels.

[0107] In the display substrate provided by an embodiment of the present invention, third-color subpixels are arranged adjacent to each other along a first direction. The light-emitting functional layers of the two third-color subpixels in two adjacent subpixel groups along the first direction are integrated into a shared light-emitting functional layer. The light-emitting functional layers of the two third-color subpixels in the two adjacent subpixel groups are formed through the same mask opening of the same mask plate. Consequently, the shared light-emitting functional layer can utilize the area between the two third-color subpixels in the two adjacent subpixel groups, allowing the shared light-emitting functional layer to have a larger area. The pixel openings of the third-color subpixels in each subpixel group include M subpixel openings, and the shared light-emitting functional layer includes 2M sub-light-emitting portions located within the subpixel openings. The larger area of ​​the shared light-emitting functional layer increases the sum of the areas of the sub-light-emitting portions within the light-emitting functional layer, thereby increasing the pixel aperture ratio of the third-color subpixels in each subpixel group. The pixel opening area occupied by the partitions can be compensated by the shared light-emitting functional layer. This avoids the dark spot problem caused by excessively large individual subpixel openings and sub-light-emitting portions in the third-color subpixels, and also increases the pixel aperture ratio of the third-color subpixels, thereby improving overall display quality and efficiency.

[0108] In some examples, such as Figure 3 As shown, two adjacent subpixel groups along the first direction X include a first subpixel group Gr01 and a second subpixel group Gr02. The light-emitting functional layers 131 of the third color subpixels PX03 of the first subpixel group Gr01 and the second subpixel group Gr02 are integrated into a common light-emitting functional layer 1310. The M subpixel openings of the third color subpixel PX03 of the first subpixel group Gr01 include a first subpixel opening 1211 and a second subpixel opening 1212 arranged along the first direction X. By including two subpixel openings in the third color subpixel PX03, the effect of the partition 122 on the reduction in pixel aperture ratio can be minimized while solving the problem of dark spots, thereby achieving better display effects and display efficiency for the display substrate.

[0109] In some examples, such as Figure 3 As shown, the minimum distance between two adjacent sub-pixel openings 1210 of the third color sub-pixel PX03 of the first sub-pixel group Gr01 is a first distance D11. The minimum distance between the sub-pixel opening 1210 of the third color sub-pixel PX03 of the first sub-pixel group Gr01 closest to the second sub-pixel group Gr02 and the sub-pixel opening 1210 of the third color sub-pixel PX03 of the second sub-pixel group Gr02 closest to the first sub-pixel group Gr01 is a second distance D12. The first distance D11 is equal to the second distance D12. In order to clearly illustrate Figure 3In each structure, the spacing D11 and D12 are marked at the sub-pixel group in the lower right corner, and the spacing D11 and D12 of the first sub-pixel group and the second sub-pixel group are similar. The light-emitting functional layers of the two third-color sub-pixels PX03 of the first sub-pixel group Gr01 and the second sub-pixel group Gr02 are integrated into a common light-emitting functional layer. Therefore, the spacing between the multiple sub-pixel openings 1210 of the two third-color sub-pixels PX03 of the first sub-pixel group Gr01 and the second sub-pixel group Gr02 can be set to be equal, which can improve the display effect. In addition, the first spacing D11 and the second spacing D12 can be set to the minimum size that can be achieved by the molding process, thereby also improving the pixel aperture ratio. In some examples, such as Figure 3 As shown, the first subpixel opening 1211 of the third color subpixel PX03 is located on a side of the second subpixel opening 1212 away from the second subpixel group Gr02, and the orthographic projection area of ​​the first subpixel opening 1211 on the substrate 110 is smaller than the orthographic projection area of ​​the second subpixel opening 1212 on the substrate 110. By increasing the area of ​​the second subpixel opening 1212 closer to the second subpixel group Gr02, each subpixel group can achieve a better display effect, thereby improving the overall display effect of the display substrate.

[0110] In some examples, the area of ​​the first subpixel opening can also be equal to the area of ​​the second subpixel opening. For example, the areas of the multiple subpixel openings of the third color subpixel in each subpixel group are equal. For example, the shapes of the multiple subpixel openings are also the same. This not only facilitates the structural design of the subpixel openings of the third color subpixel, but also improves the display uniformity of the display substrate and enhances the display effect.

[0111] In some examples, such as Figure 3 As shown, the ratio of the area of ​​the orthographic projection of the second sub-pixel opening 1212 of the third color sub-pixel PX03 on the substrate 110 to the area of ​​the orthographic projection of the first sub-pixel opening 1211 on the substrate 110 is not less than 2. Thus, the area of ​​the light-emitting portion located within the second sub-pixel opening 1212 can be increased, thereby increasing the service life of the light-emitting portion and thereby improving the service life of the third color sub-pixel PX03. For example, the ratio can be 2.5, 3, 3.5, 4, etc., and the embodiment of the present invention does not limit the value of the ratio. For example, if the areas of the first sub-pixel opening 1211 and the second sub-pixel opening 1212 are different, the position of the partition 122 between the first sub-pixel opening 1211 and the second sub-pixel opening 1212 can be set in combination with the position of the signal line of the display substrate so that the partition overlaps with the signal line, thereby reducing the load.

[0112] In some examples, such as Figure 3As shown, the dimension of the second subpixel opening 1212 of the third color subpixel PX03 along the first direction X is not less than the dimension along the second direction Y. Thus, the area between the third color subpixels of two adjacent subpixel groups can be fully utilized, and the opening area and aperture ratio of the pixel opening of the third color subpixel can be increased, so that each subpixel group has a better display effect, and the overall display effect of the display substrate is improved.

[0113] In some examples, such as Figure 3 As shown, the ratio of the size of the second sub-pixel opening 1212 along the first direction X to the size along the second direction Y is not less than 1.2. This increases the area of ​​the second sub-pixel opening 1212, thereby increasing the area of ​​the light-emitting portion within the second sub-pixel opening 1212 and thereby increasing the service life of the light-emitting portion, thereby improving the service life of the third color sub-pixel PX03. For example, this ratio can be 1.5, 1.8, 2, 2.5, etc., and the present embodiment does not limit the value of this ratio.

[0114] In some examples, such as Figure 3 As shown, the M sub-pixel openings of the third color sub-pixel PX03 of the first sub-pixel group Gr01 and the second sub-pixel group Gr02 are symmetrical about an axis parallel to the second direction Y. This facilitates the block design of the openings of the third color sub-pixel PX03, improves the display uniformity of the display substrate, and enhances the display effect.

[0115] In some examples, such as Figure 3 As shown, the M sub-pixel openings of the third color sub-pixel PX03 of the first sub-pixel group Gr01 and the second sub-pixel group Gr02 are symmetrical about an axis parallel to the first direction X. This facilitates the block design of the openings of the third color sub-pixel PX03, improves the display uniformity of the display substrate, and enhances the display effect.

[0116] In some examples, such as Figure 3 As shown, the two sub-pixel openings 1210 of the third color sub-pixel PX03 of each sub-pixel group include a pair of adjacent sides facing each other, and the pair of adjacent sides are parallel to the second direction Y. The embodiment of the utility model does not limit the extending direction of the adjacent sides, and can be designed according to factors such as display requirements.

[0117] It should be noted that, in the present invention, a pair of adjacent edges facing each other refers to two edges that are adjacent to each other and face each other, with no other pixel openings between them. Similarly, in the following text of the present invention, two straight line segments facing each other refers to two straight line segments that are adjacent to each other and face each other, with no other straight line segments between them. Vertices facing each other refers to two vertices that are adjacent to each other and face each other, with no other vertex between them.

[0118] In some examples, such as Figure 3 As shown, a plurality of first color sub-pixels PX01, a plurality of second color sub-pixels PX02, and a plurality of third color sub-pixels PX03 are arranged in an array along a first direction X and a second direction Y. A plurality of shared light-emitting function layers 1310 are arranged along the first direction X. For example, the plurality of shared light-emitting function layers 1310 are also arranged along the second direction Y.

[0119] Figure 4B for Figure 3 Another cross-sectional diagram along section line EE. Figure 4B As shown, the display substrate further includes a color filter layer 160, which is located on the side of the light-emitting device layer away from the base substrate 110. Each sub-pixel further includes a color filter pattern 161 located on the color filter layer 160. The orthographic projection of the pixel opening 121 of each sub-pixel on the base substrate 110 falls within the orthographic projection of the color filter pattern 161 on the base substrate 110. Each sub-pixel includes a color filter pattern 161. Using the color filter pattern 161 instead of a polarizer not only improves the light extraction efficiency of the display substrate and reduces the power consumption of the display substrate, but also facilitates high integration and thinness of the display substrate. Display substrates using the color filter pattern 161 can also be used in foldable products.

[0120] In some examples, such as Figure 3 and Figure 4B As shown, the pixel opening 121 of the third color sub-pixel PX03 includes multiple sub-pixel openings 1210. The orthographic projections of the multiple sub-pixel openings 1210 of the third color sub-pixel PX03 on the base substrate 110 fall within the orthographic projection of a color filter pattern 161 on the base substrate 110. This not only facilitates the process of manufacturing the color filter pattern, but also improves the pixel aperture ratio. Of course, this embodiment of the present invention is not limited to this.

[0121] In some examples, such as Figure 3 and Figure 4B As shown, the display substrate further includes a black matrix layer 150 , and each sub-pixel further includes an avoidance opening 151 located in the black matrix layer 150 . The orthographic projection of the pixel opening 121 of each sub-pixel on the base substrate 110 falls within the orthographic projection of the avoidance opening 151 on the base substrate 110 .

[0122] In some examples, such as Figure 3 and Figure 4BAs shown, the avoidance opening 151 of the third color sub-pixel PX03 includes multiple sub-avoidance openings 1510, and the orthographic projection of one sub-pixel opening 1210 of the third color sub-pixel PX03 on the substrate 110 is located within the orthographic projection of one sub-avoidance opening 1510 on the substrate 110. By making one sub-pixel opening correspond to one sub-avoidance opening, the reflectivity of the non-display area between two adjacent sub-pixel openings can be reduced, thereby improving the display effect. Of course, the embodiment of the present invention is not limited to this. For example, multiple sub-pixel openings of the third color sub-pixel can correspond to one avoidance opening, and the specific design can be based on optical requirements, etc.

[0123] The embodiments of the present invention do not limit the shapes of the avoidance opening and the color filter pattern. The shape of the avoidance opening can be any shape as long as the orthographic projection of the pixel opening on the substrate falls within the orthographic projection of the avoidance opening on the substrate. The shape of the color filter pattern can be any shape as long as the orthographic projection of the pixel opening and the avoidance opening on the substrate falls within the orthographic projection of the color filter pattern on the substrate. The shapes of the avoidance opening and the color filter pattern can be similar to or different from the pixel opening, and can be designed based on optical requirements, etc., and will not be detailed here.

[0124] In some examples, such as Figure 4B As shown, the minimum distance D16 between the boundary of the orthographic projection of the color filter pattern 161 of each sub-pixel on the substrate 110 and the boundary of the orthographic projection of the avoidance opening 151 on the substrate 110 is no less than 4 μm. This prevents peeling of the color filter pattern 161 and improves product quality. For example, this minimum distance is no less than 5 μm. This embodiment of the utility model does not limit the size of this minimum distance.

[0125] Figure 5A Another schematic plan view of a display substrate provided by an embodiment of the present utility model. Figure 5AAs shown, the area of ​​the orthographic projection of the pixel opening 121 of the second color sub-pixel PX02 of each sub-pixel group on the substrate 110 is larger than the area of ​​the orthographic projection of the pixel opening 121 of the first color sub-pixel PX01 on the substrate 110. The pixel opening of the second color sub-pixel PX02 is designed in a block-by-block manner, so that the pixel opening 121 of the second color sub-pixel PX02 includes multiple sub-pixel openings 1210, and two adjacent sub-pixel openings 1210 are separated by a partition of the pixel defining layer 120. As a result, the area of ​​a single sub-pixel opening 1210 of the second color sub-pixel PX02 is reduced, and the area of ​​the sub-light-emitting portion of the second color sub-pixel PX02 located within the sub-pixel opening 1210 is reduced, thereby avoiding the dark spot problem caused by the excessively large area of ​​the single sub-pixel opening 1210 and the sub-light-emitting portion 1311 of the second color sub-pixel PX02. The figure schematically shows that the pixel opening 121 of the second color sub-pixel PX02 includes two sub-pixel openings 1210. However, the embodiment of the present invention does not limit the number of sub-pixel openings 1210 of the second color sub-pixel PX02. For example, the number of sub-pixel openings 1210 can be 2, 3, 4, etc., which are not repeated here. The area of ​​the orthographic projection of the pixel opening 121 of the second color sub-pixel PX02 on the base substrate 110 is equal to the sum of the areas of the orthographic projections of the multiple sub-pixel openings 1210 on the base substrate 110. In order to make the figure clearer, the pixel opening 121 of the second color sub-pixel PX02 is marked in another sub-pixel group.

[0126] In some examples, such as Figure 5A As shown, the pixel opening 121 of the second color sub-pixel PX02 of each sub-pixel group includes M sub-pixel openings 1210, and the pixel opening of the third color sub-pixel PX03 of each sub-pixel group also includes M sub-pixel openings 1210. The M sub-pixel openings 1210 of the first color sub-pixel PX01 and the M sub-pixel openings 1210 of the third color sub-pixel PX03 of each sub-pixel group are arranged in the same manner. For example, the M sub-pixel openings 1210 of the second color sub-pixel PX02 and the M sub-pixel openings 1210 of the third color sub-pixel PX03 are all arranged along the first direction X. This not only facilitates the structural design of the pixel openings of each color sub-pixel, but also improves the display uniformity of each sub-pixel group and the display substrate, thereby enhancing the display effect.

[0127] In some examples, such as Figure 5AAs shown, the pixel opening 121 of the first color sub-pixel PX01 of each sub-pixel group includes a plurality of sub-pixel openings 1210, and two adjacent sub-pixel openings 1210 are separated by a partition of the pixel defining layer. Thus, the area of ​​a single sub-pixel opening 1210 of the first color sub-pixel PX01 is reduced, and the area of ​​the sub-light-emitting portion 1311 of the first color sub-pixel PX01 located in the sub-pixel opening 1210 is reduced, thereby avoiding the dark spot problem caused by the excessive area of ​​the single sub-pixel opening and the sub-light-emitting portion of the first color sub-pixel PX01. The figure schematically shows that the pixel opening of the first color sub-pixel PX01 includes two sub-pixel openings. However, the embodiment of the present invention does not limit the number of sub-pixel openings of the first color sub-pixel PX01. For example, the number of sub-pixel openings can be 2, 3, 4, etc., which will not be repeated here. The area of ​​the orthographic projection of the pixel opening 121 of the first color sub-pixel PX01 on the base substrate 110 is equal to the sum of the areas of the orthographic projections of the multiple sub-pixel openings 1210 on the base substrate 110.

[0128] In some examples, such as Figure 5A As shown, the pixel opening 121 of the first color sub-pixel PX01 of each sub-pixel group includes M sub-pixel openings 1210. The M sub-pixel openings 1210 of the first color sub-pixel PX01 of each sub-pixel group are arranged in the same manner as the M sub-pixel openings 1210 of the third color sub-pixel PX03. For example, the number of the multiple sub-pixel openings 1210 of the first color sub-pixel PX01, the second color sub-pixel PX02, and the third color sub-pixel PX03 of each sub-pixel group is the same, and the arrangement of the multiple sub-pixel openings 1210 is also the same. For example, the multiple sub-pixel openings 1210 are all arranged along the first direction X. This not only facilitates the structural design of the pixel openings of each color sub-pixel, but also improves the display uniformity of each sub-pixel group and the display substrate, thereby enhancing the display effect.

[0129] In some examples, such as Figure 5AAs shown, the multiple subpixel openings 1210 of the first color subpixel PX01 of each subpixel group include a third subpixel opening 1213 and a fourth subpixel opening 1214 arranged along the first direction X. The multiple subpixel openings 1210 of the second color subpixel PX02 include a fifth subpixel opening 1215 and a sixth subpixel opening 1216 arranged along the first direction X. The third subpixel opening 1213 is located on a side of the fourth subpixel opening 1214 away from the second color subpixel PX02, and the sixth subpixel opening 1216 is located on a side of the fifth subpixel opening 1215 away from the first color subpixel PX01. By ensuring that both the first color subpixel PX01 and the second color subpixel PX02 include two subpixel openings 1210, the effect of the partitions on the reduction in the pixel aperture ratio of the first color subpixel PX01 and the second color subpixel PX02 can be minimized while solving the problem of dark spots, thereby achieving better display effects and display efficiency for the display substrate.

[0130] In some examples, as shown in FIG5 , the area of ​​the third subpixel opening 1213 is smaller than the area of ​​the fourth subpixel opening 1214. For example, the area of ​​the sixth subpixel opening 1216 is smaller than the area of ​​the fifth subpixel opening 1215. By increasing the area of ​​the fourth subpixel opening 1214, which is closer to the second color subpixel PX02, and increasing the area of ​​the fifth subpixel opening 1215, which is closer to the first color subpixel PX01, each subpixel group can achieve a better display effect, thereby improving the overall display effect of the display substrate.

[0131] In some examples, the area of ​​the third sub-pixel opening may also be equal to the area of ​​the fourth sub-pixel opening. For example, the area of ​​the sixth sub-pixel opening may also be equal to the area of ​​the fifth sub-pixel opening. For example, the areas of the multiple sub-pixel openings of the first color sub-pixel of each sub-pixel group are equal and the same shape. For example, the areas of the multiple sub-pixel openings of the second color sub-pixel of each sub-pixel group are equal and the same shape. Thus, not only is the structural design of the sub-pixel openings of the first color sub-pixel and the second color sub-pixel facilitated, but the display uniformity of the display substrate can also be improved, thereby enhancing the display effect.

[0132] In some examples, such as Figure 5A As shown, the two sub-pixel openings 1210 of the second color sub-pixel PX02 of each sub-pixel group include a pair of adjacent edges facing each other, and the adjacent edges are parallel to the second direction Y. The present embodiment does not limit the extending direction of the adjacent edges, and can be designed based on factors such as display requirements. For example, the two sub-pixel openings 1210 of the first color sub-pixel PX01 of each sub-pixel group include a pair of adjacent edges facing each other, and the adjacent edges are parallel to the second direction Y.

[0133] In some examples, such as Figure 5A As shown, the minimum spacing between two adjacent sub-pixel openings 1210 of the second color sub-pixel PX02 of each sub-pixel group Gr is a third spacing D13. The minimum spacing between the pixel openings 121 of the first color sub-pixel PX01 and the second color sub-pixel PX02 of each sub-pixel group Gr is a fourth spacing D14. The third spacing D13 is smaller than the fourth spacing D14. This not only improves the pixel aperture ratio of the second color sub-pixel PX02, but also ensures the lifespan of the first and second color sub-pixels.

[0134] In some examples, such as Figure 5A As shown, the minimum spacing between two adjacent sub-pixel openings 1210 of the first color sub-pixel PX01 of each sub-pixel group Gr is a fifth spacing D15. The fifth spacing D15 is smaller than the fourth spacing D14. Thus, not only can the pixel aperture ratio of the first color sub-pixel PX01 be improved, but the lifespan of the first color sub-pixel and the second color sub-pixel can also be guaranteed.

[0135] In some examples, as shown in FIG5 , the third distance D13 is equal to the fifth distance D15, which can improve the display effect. In addition, the third distance D13 and the fifth distance D15 can be set to the minimum size achievable by the molding process, thereby further improving the pixel aperture ratio.

[0136] In some examples, such as Figure 5A As shown, the first distance D11, the second distance D12, the third distance D13 and the fifth distance D15 are equal, which can improve the display effect.

[0137] In some examples, such as Figure 5A As shown, the fourth distance D14 has a value range of 18 μm-26 μm. For example, the fourth distance D14 can be 20 μm, 24 μm, etc., which will not be described in detail here.

[0138] Figure 5B for Figure 5A A schematic cross-section diagram along section line HH. Figure 5A and Figure 5B As shown, the pixel opening 121 of the first color sub-pixel PX01 includes two sub-pixel openings 1210. The orthographic projections of the two sub-pixel openings 1210 of the first color sub-pixel PX01 on the substrate 110 are located within the orthographic projection of the same avoidance opening 151 on the substrate. This increases the opening area of ​​each sub-pixel opening 1210 of the first color sub-pixel PX01, improving the aperture ratio. It also increases the reflectivity of the area where the sub-pixel openings are located, enhancing the reflection effect and improving color shift issues at wide viewing angles.

[0139] In some examples, such as Figure 5A and Figure 5BAs shown, the pixel opening 121 of the second color sub-pixel PX02 includes two sub-pixel openings 1210. The orthographic projections of the two sub-pixel openings 1210 of the second color sub-pixel PX02 on the substrate are located within the orthographic projection of the same avoidance opening 151 on the substrate 110. Of course, the present embodiment is not limited to this. For example, one sub-pixel opening of the second color sub-pixel can correspond to one avoidance opening. For example, one sub-pixel opening of the first color sub-pixel can correspond to one avoidance opening. The specific design can be based on optical requirements, etc.

[0140] Figure 6 Another schematic plan view of a display substrate provided by an embodiment of the present utility model. Figure 6 As shown, the multiple sub-pixel openings of the third color sub-pixel PX03 of the first sub-pixel group Gr01 include two first sub-pixel openings 1211 and two second sub-pixel openings 1212. The two first sub-pixel openings 1211 are arranged along the second direction Y, and the two second sub-pixel openings 1212 are arranged along the second direction Y. Thus, the area of ​​each sub-pixel opening and each sub-light-emitting portion 1311 of the third color sub-pixel PX03 can be made smaller, thereby better avoiding the dark spot problem.

[0141] In some examples, such as Figure 6 As shown, the plurality of sub-pixel openings 1210 of the first color sub-pixel PX01 of each sub-pixel group includes two third sub-pixel openings 1213 and two fourth sub-pixel openings 1214. The two third sub-pixel openings 1213 are arranged along the second direction Y, and the two fourth sub-pixel openings 1214 are arranged along the second direction Y. Thus, the area of ​​each sub-pixel opening and each sub-light-emitting portion 1311 of the first color sub-pixel PX01 can be made smaller, thereby better avoiding the dark spot problem.

[0142] In some examples, such as Figure 6 As shown, the plurality of sub-pixel openings 1210 of the second color sub-pixel PX02 of each sub-pixel group includes two fifth sub-pixel openings 1215 and two sixth sub-pixel openings 1216 . The two fifth sub-pixel openings 1215 are arranged along the second direction Y, and the two sixth sub-pixel openings 1216 are arranged along the second direction Y. Thus, the area of ​​each sub-pixel opening and each sub-light-emitting portion 1311 of the second color sub-pixel PX02 can be made smaller, thereby better avoiding the dark spot problem.

[0143] In some examples, such as Figure 6As shown, the number of sub-pixel openings 1210 of the first color sub-pixel PX01, the number of sub-pixel openings 1210 of the second color sub-pixel PX02, and the number of sub-pixel openings 1210 of the third color sub-pixel PX03 in each sub-pixel group are all equal. For example, the arrangement is also the same. For example, the arrangement is arranged along the first direction X and the second direction Y. Thus, while solving the dark spot problem, the display uniformity of each sub-pixel group and the display substrate can be improved, thereby enhancing the display effect.

[0144] In some examples, such as Figure 6 As shown, a plurality of first color sub-pixels PX01, a plurality of second color sub-pixels PX02, and a plurality of third color sub-pixels PX03 are arranged in an array along a first direction X and a second direction Y. A plurality of shared light-emitting function layers 1310 are arranged along the first direction X. For example, the plurality of shared light-emitting function layers 1310 are also arranged along the second direction Y.

[0145] Figure 7 Another schematic plan view of a display substrate provided by an embodiment of the present utility model. Figure 7 As shown, two adjacent sub-pixel groups along the first direction X include the first sub-pixel group Gr01 and the second sub-pixel group Gr02. The sub-pixel group adjacent to the first sub-pixel group Gr01 along the second direction Y is the third sub-pixel group Gr03, and the sub-pixel group adjacent to the second sub-pixel group Gr02 along the second direction Y is the fourth sub-pixel group Gr04. The light-emitting functional layers 131 of the third color sub-pixel PX03 of the first sub-pixel group Gr01, the second sub-pixel group Gr02, the third sub-pixel group Gr03, and the fourth sub-pixel group Gr04 are integrated into a common light-emitting functional layer 1310. The common light-emitting functional layer 1310 of the first sub-pixel group Gr01, the second sub-pixel group Gr02, the third sub-pixel group Gr03, and the fourth sub-pixel group Gr04 includes 4M sub-light-emitting portions 1311 located in the sub-pixel opening of the third color sub-pixel PX03. The figure schematically shows that the third color sub-pixel PX03 of each sub-pixel group includes four sub-pixel openings 1210 , each sub-pixel opening 1210 includes a sub-light-emitting portion 1311 , and the common light-emitting function layer 1310 includes 16 sub-light-emitting portions 1311 .

[0146] In this example, the light-emitting functional layers 131 of the third color sub-pixels PX03 of four adjacent sub-pixel groups along the first direction X and the second direction Y are integrated into a shared light-emitting functional layer 1310. The light-emitting functional layers 131 of the four adjacent third color sub-pixels PX03 along the first direction X and the second direction Y are formed using the same mask opening of the same mask plate. Consequently, the shared light-emitting functional layer 1310 can utilize the area between the third color sub-pixels PX03 of two adjacent sub-pixel groups, allowing the shared light-emitting functional layer 1310 to have a larger area. The pixel openings of the third color sub-pixels PX03 of each sub-pixel group include M sub-pixel openings, and the shared light-emitting functional layer 1310 includes 4M sub-light-emitting portions 1311 located within the sub-pixel openings. The larger area of ​​the shared light-emitting functional layer 1310 increases the sum of the areas of the sub-light-emitting portions 1311 located within the light-emitting functional layer 131, thereby increasing the pixel aperture ratio of the third color sub-pixels PX03 of each sub-pixel group. In this example, the pixel opening of the third color sub-pixel PX03 of each sub-pixel includes four sub-pixel openings separated by the partition 122. The area occupied by the pixel opening due to the setting of the partition 122 can be compensated by the shared light-emitting functional layer 1310, thereby avoiding the dark spot problem caused by the large area of ​​the single sub-pixel opening of the third color sub-pixel PX03 and the sub-light-emitting portion 1311. Moreover, the pixel opening ratio of the third color sub-pixel PX03 can be improved, thereby improving the display effect and display efficiency as a whole.

[0147] In some examples, such as Figure 7 As shown, the M sub-pixel openings of the third color sub-pixel PX03 of the first sub-pixel group Gr01, the second sub-pixel group Gr02, the third sub-pixel group Gr03, and the fourth sub-pixel group Gr04 are symmetrical about an axis parallel to the first direction X. For example, they are also symmetrical about an axis parallel to the second direction Y. This facilitates the block design of the third color sub-pixel openings, improves the display uniformity of the display substrate, and enhances the display effect.

[0148] In some examples, such as Figure 7 As shown, the same column along the first direction X can include the first color sub-pixel PX01, the second color sub-pixel PX02, and the third color sub-pixel PX03. The same column along the first direction X can include the light-emitting functional layer 131 of the first color sub-pixel PX01, the light-emitting functional layer 131 of the second color sub-pixel PX02, and the shared light-emitting functional layer 1310 of the third color sub-pixel PX03.

[0149] In some examples, such as Figure 7As shown, the plurality of sub-pixels are further divided into a plurality of sub-pixel columns R0, each of which includes a plurality of sub-pixels arranged along a first direction X. The plurality of sub-pixel columns R0 include a first sub-pixel column R01, a second sub-pixel column R02, a third sub-pixel column R03, and a fourth sub-pixel column R04, which are sequentially arranged along a second direction Y. The first sub-pixel column R01 includes first color sub-pixels PX01 and second color sub-pixels PX02 alternately arranged along the first direction X. The plurality of sub-pixels in the second sub-pixel column R02 are repeatedly arranged along the first direction X in the order of first color sub-pixel PX01, second color sub-pixel PX02, third color sub-pixel PX03, and third color sub-pixel PX03. The plurality of sub-pixels in the third sub-pixel column R03 are third color sub-pixels PX03. The plurality of sub-pixels in the fourth sub-pixel column R04 are repeatedly arranged along the first direction X in the order of first color sub-pixel PX01, second color sub-pixel PX02, third color sub-pixel PX03, and third color sub-pixel PX03. By making the second sub-pixel column R02 and the fourth sub-pixel column R04 each include the first color sub-pixel PX01 , the second color sub-pixel PX02 , and the third color sub-pixel PX03 , the display effect of the display substrate can be changed, for example, edge color shift can be improved.

[0150] In some examples, such as Figure 7 As shown, the first color subpixel PX01 of the second subpixel column R02 and the third color subpixel PX03 of the fourth subpixel column R04 are located in the same row. For example, a virtual straight line parallel to the second direction Y and passing through the first color subpixel PX01 of the second subpixel column R02 also passes through the third color subpixel PX03 of the fourth subpixel column R04. For example, the second color subpixel PX02 of the second subpixel column R02 and the third color subpixel PX03 of the fourth subpixel column R04 are located in the same row. For example, a virtual straight line parallel to the second direction Y and passing through the second color subpixel PX02 of the second subpixel column R02 also passes through the third color subpixel PX03 of the fourth subpixel column R04.

[0151] In some examples, such as Figure 7 As shown, the first color subpixel PX01 of the fourth subpixel column R04 and the third color subpixel PX03 of the second subpixel column R02 are located in the same row. For example, a virtual straight line parallel to the second direction Y and passing through the first color subpixel PX01 of the fourth subpixel column R04 also passes through the third color subpixel PX03 of the second subpixel column R02. For example, the second color subpixel PX02 of the fourth subpixel column R04 and the third color subpixel PX03 of the second subpixel column R02 are located in the same row. For example, a virtual straight line parallel to the second direction Y and passing through the second color subpixel PX02 of the fourth subpixel column R04 also passes through the third color subpixel PX03 of the second subpixel column R02.

[0152] Figure 8 Another schematic plan view of a display substrate provided by an embodiment of the present utility model. Figure 8 As shown, the M sub-pixel openings 1210 of the third color sub-pixel PX03 of each sub-pixel group include two sub-pixel openings 1210 arranged along the first direction X, and the two sub-pixel openings 1210 include a pair of adjacent sides L11 facing each other, and the extension direction of at least one side L11 of the pair of adjacent sides L11 intersects with both the first direction X and the second direction Y. The figure schematically shows that the extension direction of the side L11 is parallel to the fourth direction P, and the fourth direction P is located in the plane where the first direction X and the second direction Y are located, and the fourth direction P intersects with both the first direction X and the second direction Y. The figure schematically shows that the two adjacent sides L11 are parallel to each other and extend along the fourth direction P. The embodiment of the present utility model does not limit the extension direction of the side L11, and can be designed according to factors such as display requirements. In this example, by making the extension direction of the side L11 intersect with both the first direction X and the second direction Y, on the one hand, the pixel aperture ratio of each sub-pixel group can be adjusted or improved. On the other hand, the display effect can be improved. For example, under the same area conditions, Figure 8 The sub-pixel openings 1210 of the third color sub-pixel PX03 shown are smaller in the fifth direction Q, which can improve the edge jaggedness. The fifth direction P is located in the plane where the first direction X and the second direction Y are located, and intersects with the first direction X, the second direction Y, and the fourth direction P.

[0153] In some examples, such as Figure 8 As shown, the angle between the extension direction of at least one side L11 of a pair of adjacent sides L11 facing each other and the first direction X is in the range of 30 degrees to 60 degrees. Thus, while ensuring the aperture ratio, a better display effect is achieved. That is, the angle between the fourth direction P and the first direction X is in the range of 30 degrees to 60 degrees. For example, the angle can be 35 degrees, 40 degrees, 45 degrees, 50 degrees, etc., which will not be described here one by one. The figure schematically shows that the angle between the fourth direction P and the first direction X is 45 degrees. Of course, the embodiment of the utility model does not limit the angle and can be designed according to factors such as display requirements.

[0154] In some examples, the display substrate further includes a plurality of signal lines extending along a fourth direction P and a plurality of signal lines extending along a fifth direction Q. For example, the first direction X is perpendicular to the second direction Y, the fourth direction P is perpendicular to the fifth direction Q, and the first direction X forms an angle with the fourth direction P. For example, the plurality of signal lines extending along the fourth direction P include gate lines, reset signals, and light control lines. For example, the plurality of signal lines extending along the fifth direction Q include power lines, data lines, and initialization signal lines. That is, in this example, the plurality of sub-pixel groups of the display substrate are arrayed along the first direction and the second direction, and the plurality of signal lines of the display substrate extend along the fourth direction or the fifth direction.

[0155] In some examples, such as Figure 8 As shown, the third color sub-pixel PX03 includes two sub-pixel openings 1210, which are arranged along the first direction X. The orthographic projections of the two sub-pixel openings 1210 on the substrate 110 are in the shape of a right-angled trapezoid, with the hypotenuses of the two right-angled trapezoids facing each other, and the right-angled sides of the right-angled trapezoids being parallel to the first direction and the second direction, respectively. For example, the two sub-pixel openings 1210 of the third color sub-pixel PX03 are a first sub-pixel opening 1211 and a second sub-pixel opening 1212. The first sub-pixel opening 1211 and the second sub-pixel opening 1212 in this embodiment can have the corresponding technical features and technical effects of the first sub-pixel opening and the second sub-pixel opening in the previous embodiments, which will not be repeated here.

[0156] In some examples, such as Figure 8 As shown, the second color subpixel PX02 of each subpixel group includes a plurality of subpixel openings 1210. For example, the second color subpixel PX02 includes M subpixel openings 1210, and the M subpixel openings include two subpixel openings 1210 arranged along the first direction X. The two subpixel openings 1210 include a pair of adjacent sides L12 facing each other, and the sides L12 intersect both the first direction X and the second direction Y. The embodiment of the present invention does not limit the extending direction of the sides L12, and can be designed based on factors such as display requirements.

[0157] In some examples, such as Figure 8 As shown, the first color subpixel PX01 of each subpixel group includes a plurality of subpixel openings 1210. For example, the first color subpixel PX01 includes M subpixel openings 1210, and the M subpixel openings 1210 of the first color subpixel PX01 include two subpixel openings 1210 arranged along the first direction X. The two subpixel openings 1210 include a pair of adjacent edges L13 facing each other, and the edges L13 intersect both the first direction X and the second direction Y. The embodiment of the present invention does not limit the extending direction of the edges L13, and can be designed based on factors such as display requirements.

[0158] In some examples, such as Figure 8 As shown, the side L11 of the third color subpixel PX03, the side L12 of the second color subpixel PX02, and the side L13 of the first color subpixel PX01 of each subpixel group are parallel, thereby improving the display uniformity of each subpixel group and the display substrate and enhancing the display effect.

[0159] In some examples, such as Figure 8 As shown, the second color subpixel PX02 includes two subpixel openings 1210. The orthographic projections of the two subpixel openings 1210 on the substrate 110 are in the shape of a right triangle, with the hypotenuses of the two right triangles facing each other, and the two right-angled sides of the right triangles being parallel to the first direction and the second direction, respectively. For example, the two subpixel openings 1210 of the second color subpixel PX02 are the fifth subpixel opening 1215 and the sixth subpixel opening 1216. The fifth subpixel opening 1215 and the sixth subpixel opening 1216 in this embodiment can have the corresponding technical features and effects of the fifth and sixth subpixel openings in the previous embodiments, and will not be further elaborated here.

[0160] In some examples, such as Figure 8 As shown, the first color sub-pixel PX01 includes two sub-pixel openings 1210. The orthographic projections of the two sub-pixel openings 1210 on the substrate 110 are in the shape of a right triangle, with the hypotenuses of the two right triangles facing each other, and the two right-angled sides of the right triangles being parallel to the first direction and the second direction, respectively. For example, the two sub-pixel openings 1210 of the first color sub-pixel PX01 are a third sub-pixel opening 1213 and a fourth sub-pixel opening 1214. The third sub-pixel opening 1213 and the fourth sub-pixel opening 1214 in this embodiment can have the corresponding technical features and effects of the third sub-pixel opening and the fourth sub-pixel opening in the previous embodiments, and will not be further elaborated here.

[0161] Figure 8 The schematic diagram shows that the first color sub-pixel PX01, the second color sub-pixel PX02, and the third color sub-pixel PX03 all include multiple sub-pixel openings. However, this is not limited to this embodiment of the present invention. For example, the design can be based on the area of ​​the pixel openings of each color sub-pixel. For example, only the third color sub-pixel can include multiple sub-pixel openings. For example, only the third color sub-pixel and the second color sub-pixel can include multiple sub-pixel openings. This will not be further described here.

[0162] In some examples, such as Figures 3 to 8As shown, the orthographic projection of the pixel opening 121 of each sub-pixel on the substrate 110 may be a polygon such as a triangle, rectangle, or pentagon. For example, the polygon may be partially or fully chamfered, thereby reducing the deposition shadow formed by the mask during the deposition process. The embodiment of the utility model does not limit the size of the chamfer, and the angle may be rounded or right angled.

[0163] In some examples, such as Figures 3 to 8 As shown, the shape of the orthographic projection of the pixel opening 121 of each sub-pixel on the base substrate 110 includes a side parallel to the first direction X and a side parallel to the second direction Y. Since the sub-pixels are arranged along the first direction X or the second direction Y, each sub-pixel can have a larger pixel opening area and pixel aperture ratio.

[0164] In some examples, the minimum spacing between two adjacent sub-pixel openings of the first color sub-pixel PX01 of each sub-pixel group is no less than 6 μm. For example, the minimum spacing between two adjacent sub-pixel openings of the second color sub-pixel PX02 is no less than 6 μm. For example, the minimum spacing between two adjacent sub-pixel openings of the third color sub-pixel PX03 is no less than 6 μm. This satisfies the molding process requirements for two adjacent sub-pixel openings of each sub-pixel, ensuring the dimensional accuracy and quality of the product. For example, the above minimum spacings can be 7 μm, 8 μm, or 10 μm, which are not further detailed here.

[0165] The present invention also provides a pixel arrangement structure. The pixel arrangement structure includes a plurality of minimal repeating units, wherein the plurality of minimal repeating units are arranged in an array along a first direction and a second direction intersecting the first direction. Each minimal repeating unit includes a first color sub-pixel block, a second color sub-pixel block, and a third color sub-pixel block, wherein the first color sub-pixel block and the second color sub-pixel block are arranged along the first direction, and the first color sub-pixel block and the third color sub-pixel block are arranged along the second direction. The third color sub-pixel block includes two third color sub-pixel blocks arranged along the first direction, wherein the two third color sub-pixel blocks include a pair of adjacent sides facing each other, and wherein at least one of the pair of adjacent sides of the third color sub-pixel block extends in a direction intersecting both the first direction and the second direction.

[0166] In the pixel arrangement structure provided by the embodiment of the present invention, by making the third color sub-pixel block include two third color sub-pixel sub-blocks, the area of ​​each third color sub-pixel sub-block can be reduced, and the problem of pixel dark spots in the display substrate using the pixel arrangement structure can be avoided. For details, please refer to the corresponding description of the display substrate of the present application, which will not be repeated here. By making the extension direction of at least one of the pair of adjacent sides of the two third color sub-pixel sub-blocks facing each other intersect with both the first direction and the second direction, on the one hand, the area of ​​the third color sub-pixel block can be increased or adjusted, and the pixel opening area and pixel opening ratio of the display substrate using the pixel arrangement structure can be increased or adjusted. On the other hand, the display effect of the display substrate using the pixel arrangement structure can also be improved. For example, the edge jaggedness can be improved.

[0167] Figure 8 The display substrate shown adopts the pixel arrangement structure provided by the embodiment of the present utility model. Figure 8 As shown, the pixel arrangement structure includes a plurality of minimum repeating units 180, which are arranged in an array along a first direction X and a second direction Y intersecting the first direction X. Each minimum repeating unit 180 includes a first color sub-pixel block 181, a second color sub-pixel block 182, and a third color sub-pixel block 183. The first color sub-pixel blocks 181 and the second color sub-pixel blocks 182 are arranged along the first direction X, and the first color sub-pixel blocks 181 and the third color sub-pixel blocks 183 are arranged along the second direction Y. The third color sub-pixel block 183 includes two third color sub-pixel blocks 1810 arranged along the first direction X. The two third color sub-pixel blocks 1810 include a pair of adjacent sides L11 facing each other, and at least one of the pair of adjacent sides L11 of the third color sub-pixel block 181 extends in a direction intersecting both the first direction X and the second direction Y. The figure schematically shows that the extension direction of the side L11 is parallel to the fourth direction P. The figure schematically shows that two adjacent sides L11 are parallel to each other and both extend along the fourth direction P.

[0168] In the pixel arrangement structure provided by the embodiment of the present invention, by making the third color sub-pixel block 183 include two third color sub-pixel blocks 1830, the area of ​​each third color sub-pixel block 1830 can be reduced, and the problem of pixel dark spots in the display substrate using the pixel arrangement structure can be avoided. For details, please refer to the corresponding description of the display substrate of the present application, which will not be repeated here. By making the extension direction of at least one side L11 of a pair of adjacent sides L11 of the two third color sub-pixel blocks 1830 facing each other intersect with the first direction and the second direction, on the one hand, the area of ​​the third color sub-pixel block can be increased or adjusted, and the pixel opening area and pixel opening ratio of the display substrate using the pixel arrangement structure can be increased or adjusted. On the other hand, the display effect of the display substrate using the pixel arrangement structure can also be improved. For example, under the same area conditions, Figure 8 The third color sub-pixel block 1830 shown has a smaller size in the fifth direction Q, which can improve edge jaggedness.

[0169] In some examples, such as Figure 8 As shown, the angle between at least one side L11 of a pair of adjacent sides L11 of the third color sub-pixel block 183 and the first direction X ranges from 30 degrees to 60 degrees. This ensures that the area of ​​the two third color sub-pixel sub-blocks 1830 is sufficient, while also enabling a display substrate employing this pixel arrangement structure to achieve a better display quality. For example, this angle can be 35 degrees, 40 degrees, 45 degrees, 50 degrees, etc., which will not be detailed here. The figure schematically illustrates that the angle between the fourth direction P and the first direction X is 45 degrees.

[0170] In some examples, such as Figure 8 As shown, the shape of the third color sub-pixel sub-block 183 includes a polygon, and the polygon includes at least one side parallel to the first direction X and at least one side parallel to the second direction Y. Each of the minimal repeating units 180 and the two third color sub-pixel sub-blocks 183 are arranged along the first direction X and the second direction Y. This arrangement can increase the area of ​​the third color sub-pixel sub-block 183.

[0171] In some examples, such as Figure 8 As shown, the first color sub-pixel block 181 includes two first color sub-pixel blocks 1810. The two first color sub-pixel blocks 1810 include a pair of adjacent sides L13 facing each other. At least one of the pair of adjacent sides L13 of the first color sub-pixel block 181 extends in a direction that intersects both the first direction X and the second direction Y. The beneficial technical effects of this arrangement are described in the relevant parts of the third color sub-pixel block and will not be detailed here.

[0172] In some examples, such as Figure 8As shown, the second color sub-pixel block 182 includes two second color sub-pixel blocks 1820. The two second color sub-pixel blocks 1820 include a pair of adjacent sides L12 facing each other. At least one of the pair of adjacent sides L12 of the second color sub-pixel block 182 extends in a direction that intersects both the first direction X and the second direction Y. The beneficial technical effects of this arrangement are described in the relevant parts of the third color sub-pixel block and will not be detailed here.

[0173] In some examples, such as Figure 8 As shown, the pair of adjacent sides L13 of the first color sub-pixel block 181, the pair of adjacent sides L12 of the second color sub-pixel block 182, and the pair of adjacent sides L11 of the third color sub-pixel block 183 are all parallel to each other. Thus, the display substrate using this pixel arrangement structure can have a better display effect.

[0174] In some examples, such as Figure 8 As shown, the sum of the areas of the two third color sub-pixel sub-blocks is greater than the sum of the areas of the two first color sub-pixel sub-blocks, and greater than the sum of the areas of the two second color sub-pixel sub-blocks. For example, the shape of the first color sub-pixel sub-block 1810 comprises a triangle. For example, the mutually facing adjacent sides L13 of the two first color sub-pixel sub-blocks 1810 are the longest sides of the triangle. For example, the shape of the first color sub-pixel sub-block 1810 comprises a right triangle. For example, the shape of the second color sub-pixel sub-block 1820 comprises a triangle. For example, the mutually facing adjacent sides L12 of the two second color sub-pixel sub-blocks 1820 are the longest sides of the triangle. For example, the shape of the second color sub-pixel sub-block 1820 comprises a right triangle. For example, the shape of the third color sub-pixel sub-block 1830 comprises a trapezoid. For example, the mutually facing adjacent sides L11 of the two third color sub-pixel sub-blocks 1830 are one of the hypotenuses of the trapezoid. For example, the shape of the third color sub-pixel sub-block 1830 comprises a right trapezoid. Such an arrangement can not only ensure the area of ​​each color sub-pixel block, but also improve the display effect of the display substrate.

[0175] Figure 9 This is a schematic diagram of the planar structure of a first electrode of a display substrate provided by an embodiment of the present utility model. Figure 9 As shown, the light-emitting device of each sub-pixel further includes a first electrode 132, and the orthographic projections of the M sub-pixel openings 1210 of the third-color sub-pixel PX03 on the substrate 110 are located within the orthographic projections of the first electrodes 132 of the light-emitting devices of the third-color sub-pixels PX03 on the substrate 110. For example, the orthographic projections of the partitions 122 between the sub-pixel openings 1210 of the third-color sub-pixels PX03 on the substrate 110 at least partially overlap with the orthographic projections of the first electrodes 132 of the light-emitting devices of the third-color sub-pixels PX03 on the substrate 110.

[0176] In some examples, such as Figure 9 As shown, the pixel openings of the second color sub-pixel PX02 include multiple sub-pixel openings 1210. The orthographic projections of the multiple sub-pixel openings 1210 on the substrate 110 are located within the orthographic projections of the first electrodes 132 of the second color sub-pixels PX02 on the substrate 110. For example, the orthographic projections of the partitions 122 between the sub-pixel openings 1210 of the second color sub-pixels PX02 on the substrate 110 at least partially overlap with the orthographic projections of the first electrodes 132 of the light-emitting devices of the second color sub-pixels PX02 on the substrate 110. This simplifies the manufacturing process and improves production efficiency.

[0177] In some examples, such as Figure 9 As shown, the pixel opening of the first color sub-pixel PX01 includes multiple sub-pixel openings 1210, and the orthographic projections of the multiple sub-pixel openings 1210 on the substrate 110 are located within the orthographic projection of the first electrode 132 of the first color sub-pixel PX01 on the substrate 110. For example, the orthographic projections of the partitions 122 between the sub-pixel openings 1210 of the first color sub-pixel PX01 on the substrate 110 at least partially overlap with the orthographic projections of the first electrode 132 of the light-emitting device of the first color sub-pixel PX01 on the substrate 110. This simplifies the manufacturing process and improves production efficiency. The embodiment of the present utility model does not limit the shape of the orthographic projection of the first electrode 132 of each color sub-pixel on the substrate 110.

[0178] In some examples, such as Figure 9 As shown, the plurality of sub-pixel openings 1210 of the third color sub-pixel PX03 of each sub-pixel group are arranged along a first direction X, and separators 122 are included between the plurality of sub-pixel openings 1210. The display substrate includes a plurality of signal lines extending along a second direction Y intersecting the first direction X. For example, the plurality of signal lines extending along the second direction Y include a plurality of power lines Vdd, a plurality of data lines Date, and a plurality of initialization signal lines Vinit.

[0179] In some examples, such as Figure 9 As shown, the orthographic projections of portions of the multiple data lines Date on the substrate 110 overlap with the orthographic projections of the partitions 122 between the multiple sub-pixel openings 1210 of the third color sub-pixel PX03 on the substrate 110. For example, the orthographic projections of portions of the multiple initialization signal lines Vinit on the substrate 110 overlap with the orthographic projections of the partitions 122 between the multiple sub-pixel openings 1210 of the third color sub-pixel PX03 on the substrate 110. The multiple sub-pixel openings 1210 of each sub-pixel group are arranged along the first direction X, and some of the multiple signal lines extending along the second direction Y can be disposed between the multiple sub-pixel openings 1210, thereby reducing load.

[0180] In some examples, such as Figure 9 As shown, the plurality of sub-pixel openings 1210 of the second color sub-pixels PX02 of each sub-pixel group are arranged along the first direction X, and separators 122 are included between the plurality of sub-pixel openings 1210. The orthographic projections of portions of the plurality of power lines Vdd and portions of the plurality of data lines Date on the base substrate 110 overlap with the orthographic projections of the separators 122 between the plurality of sub-pixel openings 1210 of the second color sub-pixels PX02 on the base substrate 110.

[0181] In some examples, such as Figure 9 As shown, the orthographic projection of at least one of the multiple sub-pixel openings 1210 of the third color sub-pixel PX03 on the substrate 110 overlaps with the orthographic projection of portions of the multiple power lines Vdd on the substrate 110. For example, the orthographic projection of each of the multiple sub-pixel openings 1210 of the third color sub-pixel PX03 on the substrate 110 overlaps with the orthographic projection of the power line Vdd on the substrate 110. For example, the orthographic projection of at least one of the multiple sub-pixel openings 1210 of the second color sub-pixel PX02 on the substrate 110 overlaps with the orthographic projection of the power line Vdd on the substrate 110. For example, the orthographic projection of at least one of the multiple sub-pixel openings 1210 of the first color sub-pixel PX01 on the substrate 110 overlaps with the orthographic projection of the power line Vdd on the substrate 110.

[0182] Figure 10A A schematic planar structural diagram of another first electrode of a display substrate provided by an embodiment of the present utility model; Figure 10B for Figure 10A Schematic diagram of the cross section along the cutting line FF. Figure 10A and Figure 10B As shown, the light-emitting device of each sub-pixel further includes a first electrode 132. The pixel opening of the third-color sub-pixel PX03 includes M sub-pixel openings 1210. The first electrode 132 of the light-emitting device of the third-color sub-pixel PX03 includes M sub-electrode portions 1321 spaced apart from each other and a connecting portion 1322 connecting the M sub-electrode portions 1321 to each other. The M sub-electrode portions 1321 of the third-color sub-pixel PX03 correspond one-to-one with the M sub-pixel openings 1210. The sub-pixel opening 1210 of the third-color sub-pixel PX03 exposes at least a portion of a corresponding sub-electrode portion 1321 of the third-color sub-pixel PX03. By designing the anode 132 of the light-emitting device of the third-color sub-pixel PX03 in a block-by-block manner, repair can be facilitated if a point or location on the third-color sub-pixel PX03 displays poorly, thereby improving the repair rate of the poorly displayed point.

[0183] In some examples, such as Figure 10AAs shown, the pixel opening of the second color subpixel PX02 includes multiple subpixel openings 1210. The first electrode 132 of the light-emitting device of the second color subpixel PX02 also includes multiple sub-electrode portions 1321 spaced apart from each other and a connecting portion 1322 connecting the multiple sub-electrode portions 1321 to each other. The multiple sub-electrode portions 1321 of the second color subpixel PX02 correspond one-to-one with the multiple sub-pixel openings 1210. The subpixel opening 1210 of the second color subpixel PX02 exposes at least a portion of a corresponding sub-electrode portion 1321 of the second color subpixel PX02. This improves the repair rate of defective pixels.

[0184] In some examples, such as Figure 10A As shown, the anode 132 of the light-emitting device of the first color sub-pixel PX01 includes a plurality of sub-electrode portions 1321 spaced apart from one another and a connecting portion 1322 connecting the plurality of sub-electrode portions 1321 to one another. The plurality of sub-electrode portions 1321 of the first color sub-pixel PX01 corresponds one-to-one with the plurality of sub-pixel openings 1210. The sub-pixel openings 1210 of the first color sub-pixel PX01 expose at least a portion of a sub-electrode portion 1321 of the corresponding first color sub-pixel PX01. This improves the repair rate of defective spots.

[0185] In some examples, such as Figure 10A As shown, the plurality of sub-pixel openings 1210 of the third color sub-pixel PX03 of each sub-pixel group are arranged along a first direction X, and separators 122 are included between the plurality of sub-pixel openings 1210. The display substrate includes a plurality of signal lines extending along a second direction Y intersecting the first direction X. For example, the plurality of signal lines extending along the second direction Y include a plurality of power lines Vdd, a plurality of data lines Date, and a plurality of initialization signal lines Vinit.

[0186] In some examples, such as Figure 10A As shown, the orthographic projections of portions of the multiple data lines Date on the base substrate 110 do not overlap with at least one of the multiple sub-electrode portions 1321 of the third color sub-pixel PX03. For example, the orthographic projections of portions of the multiple data lines Date on the base substrate 110 do not overlap with any of the multiple sub-electrode portions 1321 of the third color sub-pixel PX03. This can reduce the load.

[0187] In some examples, such as Figure 10A As shown, the orthographic projection of the plurality of data lines Date on the base substrate 110 overlaps the connection portion 1322 of the third color sub-pixel PX03. Thus, the data line Date can be disposed between two adjacent sub-electrode portions 1321, which can reduce the load.

[0188] In some examples, such as Figure 10AAs shown, the multiple subpixel openings 1210 of the second color subpixel PX02 of each subpixel group are arranged along the first direction X, with separators 122 between the multiple subpixel openings 1210. For example, the orthographic projections of portions of the multiple power lines Vdd and the multiple data lines Date on the base substrate 110 overlap with the orthographic projections of the connection portion 1322 of the second color subpixel PX02 on the base substrate 110. As a result, the portions of the multiple signal lines extending along the second direction Y can be arranged between two adjacent sub-electrode portions 1321 as much as possible, thereby reducing the load.

[0189] In some examples, the first color is red, the second color is green, and the third color is blue.

[0190] In some examples, the area of ​​the pixel opening of the third color sub-pixel of each sub-pixel group projected on the substrate is not less than 2000 μm. 2 For example, the sum of the orthographic projection areas of all sub-pixel openings of the third color sub-pixels of each sub-pixel group on the base substrate is not less than 2000 μm. 2 For example, the above area can be larger than 3000 μm 2 . The embodiment of the present invention does not limit the specific numerical value of the area. For example, the display substrate of the present invention is a medium-to-large-sized display substrate. For medium-to-large-sized display substrates, compared with small-sized display substrates used for mobile phones, watches, etc., the pixel opening area of ​​the third color sub-pixel of the medium-to-large-sized display substrate is larger, and the probability of dark spots occurring is greater. By adopting the technical solution of the above-mentioned display substrate of the present invention, the dark spot problem can be effectively solved, and the display effect and display efficiency can be improved.

[0191] In some examples, the ratio of the area of ​​the orthographic projection of the pixel opening of the third color sub-pixel in each sub-pixel group on the substrate to the total area of ​​the orthographic projection of all pixel openings in the sub-pixel group on the substrate ranges from 40% to 60%. For example, the ratio can be 45%, 50%, or 55%. Details are not repeated here.

[0192] Figure 11A A schematic plan view of a display substrate provided by an embodiment of the present utility model; Figure 11B for Figure 11A Schematic diagram of the cross section along the section line GG. Figure 11A and Figure 11BAs shown, the display substrate includes a base substrate 210, a pixel defining layer 220, a light-emitting device layer, and a color filter layer. The pixel defining layer 220 and the light-emitting device layer are located on the base substrate 210, and the color filter layer is located on the side of the light-emitting device layer away from the base substrate 210. The display substrate includes a plurality of sub-pixels, each of which includes a plurality of first-color sub-pixels PX01, a plurality of second-color sub-pixels PX02, and a plurality of third-color sub-pixels PX03. The plurality of sub-pixels are divided into a plurality of sub-pixel groups Gr, each of which includes a first-color sub-pixel PX01, a second-color sub-pixel PX02, and a third-color sub-pixel PX03. The plurality of sub-pixel groups Gr are arranged in an array along a first direction X and a second direction Y intersecting the first direction X. The first-color sub-pixels PX01 and the second-color sub-pixels PX02 of each sub-pixel group Gr are arranged along the first direction X, and the first-color sub-pixels PX01 and the third-color sub-pixels PX03 of each sub-pixel group are arranged along the second direction Y. Each sub-pixel includes a pixel opening 221 located in the pixel defining layer 220, a light-emitting device EM located in the light-emitting device layer, and a color filter pattern 251 located in the color filter layer. The orthographic projection of the pixel opening 221 of each sub-pixel on the base substrate 210 falls within the orthographic projection of the color filter pattern 251 on the base substrate 210. The orthographic projection of the pixel opening 221 of each sub-pixel on the base substrate 210 includes multiple arc segments 223, and the center of curvature of each point on each arc segment 223 is located on the same side of the arc segment 223.

[0193] In the display substrate provided in the embodiment of the present invention, each sub-pixel includes a color filter pattern 251. Using color filter pattern 251 in place of a polarizer not only improves the light extraction efficiency of the display substrate and reduces the power consumption of the display substrate, but also facilitates high integration and thinness. Display substrates employing color filter pattern 251 can also be used in foldable products. By ensuring that the orthographic projection of the pixel opening 221 of each sub-pixel on the base substrate 210 includes multiple arc segments 223, with the center of curvature of each point on each arc segment 223 located on the same side of the arc segment 223, the display quality of the display substrate in the dark state can be improved, thereby enhancing the display quality of the display substrate.

[0194] In some examples, such as Figure 11A and Figure 11BAs shown, the display substrate further includes a black matrix layer 240, and each sub-pixel further includes an escape opening 241 located in the black matrix layer 240. The orthographic projection of the pixel opening 221 of each sub-pixel on the base substrate 210 falls within the orthographic projection of the escape opening 241 on the base substrate 210, and the orthographic projection of the escape opening 241 of each sub-pixel on the base substrate 210 falls within the orthographic projection of the color filter pattern 251 on the base substrate 210. The figure schematically shows that the pixel opening 221, the escape opening 241, and the color filter pattern 251 of each sub-pixel have the same shape. However, the embodiments of the present invention do not limit the shapes of the pixel opening 221, the escape opening 241, and the color filter pattern 251.

[0195] The embodiments of the present invention do not limit the shapes of the avoidance opening and the color filter pattern. The shape of the avoidance opening can be any shape as long as the orthographic projection of the pixel opening on the substrate falls within the orthographic projection of the avoidance opening on the substrate. The shape of the color filter pattern can be any shape as long as the orthographic projection of the pixel opening and the avoidance opening on the substrate falls within the orthographic projection of the color filter pattern on the substrate. The shapes of the avoidance opening and the color filter pattern can be similar to or different from the pixel opening, and can be designed based on optical requirements, etc., and will not be detailed here.

[0196] In some examples, such as Figure 11B As shown, the light emitting device EM of each sub-pixel includes a first electrode 231 , a light emitting function layer 232 and a second electrode 233 . The light emitting function layer 232 includes a light emitting portion 2320 located in the pixel opening 221 .

[0197] The present embodiment of the utility model does not limit whether the light-emitting functional layer 232 of the third color sub-pixel PX03 is integrated into a common light-emitting functional layer 232. For example, the light-emitting functional layers 232 of two adjacent third color sub-pixels PX03 along the first direction X can be formed through different openings of the mask, or can be integrated into a common light-emitting functional layer through the same opening of the mask, which will not be described in detail here.

[0198] In some examples, such as Figure 11A and Figure 11B As shown, the minimum distance L20 between the boundary of the orthographic projection of the color filter pattern 251 of each sub-pixel on the base substrate 210 and the boundary of the orthographic projection of the avoidance opening 241 on the base substrate 210 is no less than 4 μm. This prevents peeling of the color filter pattern 251 and improves product quality. For example, this minimum distance is no less than 5 μm. This embodiment of the utility model does not limit the size of this minimum distance.

[0199] In some examples, such as Figure 11AAs shown, the orthographic projection of the pixel opening 221 of each sub-pixel on the base substrate 210 can be approximately circular. The multiple arc segments 223 of the pixel opening 221 of each sub-pixel are arcs or approximate arcs. This can improve the display effect of the display substrate in a dark state and enhance the display effect of the display substrate.

[0200] Figure 12 Another schematic plan view of a display substrate provided by an embodiment of the present utility model. Figure 12 As shown, the multiple arc segments 223 of the pixel opening 221 of the third color sub-pixel PX03 include a first arc segment 2231 and a second arc segment 2232, the two ends of the first arc segment 2231 and the second arc segment 2232 are respectively connected, the first arc segment 2231 protrudes along the first direction X and in a direction away from the second arc segment 2232, the second arc segment 2232 protrudes along the first direction X in a direction away from the first arc segment 2231, the maximum dimension of the pixel opening 221 along the first direction X is a first dimension L21, the maximum dimension of the pixel opening 221 along the second direction Y is a second dimension L22, and the first dimension L21 is greater than the second dimension L22. On the premise of improving the display effect, especially the dark display effect, by making the first size L21 larger than the second size L22, the space between two adjacent third color sub-pixels PX03 along the first direction X can be effectively utilized to increase the pixel opening 221 area and aperture ratio of the third color sub-pixel PX03, thereby improving the lifespan of the third color sub-pixel PX03 and the display effect and lifespan of the display substrate.

[0201] In some examples, such as Figure 12 As shown, the orthographic projection area of ​​the pixel opening 221 of the third color sub-pixel PX03 on the substrate 210 is larger than the orthographic projection areas of the pixel openings 221 of the first color sub-pixel PX01 and the second color sub-pixel PX02 on the substrate 210. By increasing the area of ​​the pixel opening 221 and the aperture ratio of the third color sub-pixel PX03, the lifespan of the third color sub-pixel PX03 can be increased.

[0202] In some examples, such as Figure 12 As shown, the length of the line connecting the two endpoints P01 and P02 of the first arc segment 2231 and the second arc segment 2232 is the second dimension L22, and the extending direction of the line connecting the two endpoints P01 and P02 is parallel to the second direction Y. Therefore, not only is the structural design of the pixel opening 221 of the third color sub-pixel PX03 facilitated, but also the symmetry of the pixel opening 221 of the third color sub-pixel PX03 with respect to the first direction X can be improved, which is conducive to improving the display effect.

[0203] In some examples, such as Figure 12As shown, the pixel opening 221 of the third color sub-pixel PX03 is symmetrical about an axis parallel to the first direction X. This facilitates the structural design of the pixel opening 221 and helps improve the display effect.

[0204] In some examples, such as Figure 12 As shown, the shape of the first arc segment 2231 comprises a portion of an ellipse, and the major axis of the ellipse within which the first arc segment 2231 lies is parallel to the first direction X. Thus, the elliptical shape of the first arc segment 2231 not only improves the display quality of the display substrate, especially the dark-state display quality, but also, the parallelism of the major axis of the ellipse with the first direction X maximizes the use of the space between two adjacent third-color sub-pixels PX03 along the first direction X, making the first dimension of the third-color sub-pixel PX03 larger than the second dimension, thereby increasing the aperture area and aperture ratio. For example, the line connecting the two endpoints P01 and P02 of the first arc segment 2231 is equal to the minor axis of the ellipse within which the first arc segment 2231 lies.

[0205] In some examples, such as Figure 12 As shown, the shape of the second arc segment 2232 includes a portion of a circle. Thus, the display effect of the display substrate, especially the dark state display effect, can be improved.

[0206] In some examples, such as Figure 12 As shown, the line connecting the two endpoints P01 and P02 of the second arc segment 2232 is equal to the diameter of the circle in which the second arc segment 2232 is located. Therefore, not only can the opening area and the aperture ratio be increased, but the line at the connection point of the first arc segment 2231 and the second arc segment 2232 can also be made more natural and smooth, thereby improving the display effect. Of course, the embodiment of the utility model is not limited to this. According to the display effect of the dark state or the aperture ratio requirement, the ratio of the second arc segment 2232 or the first arc segment 2231 to the total circumference of the pixel opening 221 can be adjusted to meet the display requirements or the aperture ratio requirement.

[0207] In some examples, the second arc segment may also be part of an ellipse. For example, the major axis of the ellipse within which the second arc segment resides is parallel to the second direction Y. For example, the line connecting the two endpoints of the second arc segment is equal to the major axis of the ellipse within which the second arc segment resides, and the line connecting the two endpoints of the first arc segment is equal to the minor axis of the ellipse within which the first arc segment resides. This can improve the display quality of the display substrate, especially the dark state display quality.

[0208] In some examples, such as Figure 12 As shown, the orthographic projection of the pixel opening 221 of the first color sub-pixel PX01 on the substrate 210 can be approximately circular. For example, the plurality of arc segments 223 of the pixel opening 221 of the second color sub-pixel PX02 include at least one of an arc and an ellipse.

[0209] In some examples, such as Figure 12 As shown, two adjacent subpixel groups along the first direction X include a first subpixel group Gr21 and a second subpixel group Gr22. For example, the pixel openings 221 of the third color subpixels PX03 in the first subpixel group Gr21 and the second subpixel group Gr22 are symmetrical about an axis parallel to the second direction Y. This arrangement can improve the display effect of the display substrate in a dark state and enhance the display effect of the display substrate.

[0210] In some examples, such as Figure 12 As shown, the sub-pixel group adjacent to the first sub-pixel group Gr21 along the second direction Y is the third sub-pixel group Gr23, and the sub-pixel group adjacent to the second sub-pixel group Gr22 along the second direction Y is the fourth sub-pixel group Gr24. For example, the pixel openings 221 of the third color sub-pixels PX03 of the third sub-pixel group Gr23 and the fourth sub-pixel group Gr24 are symmetrical about an axis parallel to the second direction Y.

[0211] In some examples, such as Figure 12 As shown, the two arc segments 223 facing each other of the pixel opening 221 of the third color sub-pixel PX03 of the first sub-pixel group Gr21 and the second sub-pixel group Gr22 are second arc segments 2232, and the two arc segments 223 facing each other of the pixel opening 221 of the third color sub-pixel PX03 of the third sub-pixel group Gr23 and the fourth sub-pixel group Gr24 are first arc segments 2231. This arrangement can improve the display effect of the display substrate in a dark state and enhance the display effect of the display substrate.

[0212] In some examples, such as Figure 12 As shown, the minimum spacing L23 between the pixel openings 221 of the third color sub-pixels PX03 of the first sub-pixel group Gr21 and the second sub-pixel group Gr22 is greater than the minimum spacing L24 between the pixel openings 221 of the third color sub-pixels PX03 of the third sub-pixel group Gr23 and the fourth sub-pixel group Gr24. This arrangement can improve the display effect of the display substrate in a dark state and enhance the display effect of the display substrate.

[0213] In some examples, such as Figure 12 As shown, the quadrilateral formed by sequentially connecting the geometric centers O of the pixel openings 221 of the third color sub-pixels PX03 of the first sub-pixel group Gr21, the second sub-pixel group Gr22, the third sub-pixel group Gr23, and the fourth sub-pixel group Gr24 includes a pair of opposite and non-parallel sides. For example, the quadrilateral formed by sequentially connecting the geometric centers O of the pixel openings 221 of the third color sub-pixels PX03 of the four sub-pixel groups is a trapezoid. For example, the trapezoid is an isosceles trapezoid.

[0214] Figure 13Another schematic plan view of a display substrate provided by an embodiment of the present utility model. Figure 13 As shown, the orthographic projection of the pixel opening 221 of at least one of the multiple sub-pixels on the base substrate 210 includes multiple arc segments 223 and multiple raised line segments 224. The raised line segments 224 are located between and connect two adjacent arc segments 223, and each raised line segment 224 protrudes relative to the two adjacent arc segments 223 toward the center O of the pixel opening 221 of the back ion pixel. The provision of the raised line segments 224 can fully utilize the space between two adjacent sub-pixels to increase the pixel opening area and aperture ratio of the sub-pixel, thereby improving the lifespan of the sub-pixel and enhancing the display effect and lifespan of the display substrate.

[0215] The figure schematically shows that the pixel opening 221 of the third color sub-pixel PX03 and the second color sub-pixel PX02 includes a raised line segment 224. However, the embodiment of the present invention is not limited to this, and can be set according to needs. For example, each sub-pixel group can have only one sub-pixel with a raised line segment, or each sub-pixel in each sub-pixel group can have a raised line segment. The figure schematically shows that the sub-pixel includes 4 or 6 raised line segments. However, the embodiment of the present invention is not limited to this. For example, the number of raised line segments can be a positive integer greater than or equal to 1.

[0216] In some examples, such as Figure 13 As shown, the pixel opening 221 of the sub-pixel including the raised line segment 224 is symmetrical about an axis parallel to the second direction Y. For example, the pixel opening 221 of the sub-pixel including the raised line segment 224 is also symmetrical about an axis parallel to the first direction X. Thus, the uniformity of the display effect can be improved, and the display effect of the display substrate can be improved.

[0217] In some examples, such as Figure 13 As shown, the multiple arc segments 223 of the pixel opening 221 of the sub-pixel including the raised line segment 224 are located on the same virtual circle. For example, the multiple arc segments 223 of the pixel opening 221 of the third color sub-pixel PX03 are located on the same virtual circle. For example, the multiple arc segments 223 of the pixel opening 221 of the second color sub-pixel PX02 are located on the same virtual circle. This can improve the display quality of the display substrate, especially the dark state display quality.

[0218] In some examples, a portion of the multiple arc segments of the pixel opening of the sub-pixel including the raised line segment may be located on the same virtual circle, and another portion may be located on the same virtual ellipse. Figure 12In the embodiment shown, the pixel opening of the third color sub-pixel of each sub-pixel group can also include a raised line segment, so that the arc segment located on the same virtual ellipse can further utilize the space between two adjacent sub-pixels, further increasing the pixel opening area and aperture ratio of the sub-pixel.

[0219] In some examples, such as Figure 13 As shown, the number of raised line segments 224 of the third color sub-pixel PX03 is greater than the number of raised line segments 224 of the second color sub-pixel PX02. The space between two adjacent third color sub-pixels PX03 arranged along the first direction X is larger, so that the space can be fully utilized to increase the area of ​​the pixel opening 221 of the third color sub-pixel PX03 and the aperture ratio.

[0220] In some examples, such as Figure 13 As shown, a virtual straight line passing through the center of the pixel opening 221 of the third color sub-pixel PX03 and parallel to the first direction X passes through at least one raised line segment 224 of the third color sub-pixel PX03. Thus, the space between two adjacent third color sub-pixels PX03 along the first direction X can be fully utilized.

[0221] In some examples, such as Figure 13 As shown, the diameter of the virtual circle where the arc segments 223 of the third color sub-pixel PX03 are located is larger than the diameter of the virtual circle where the arc segments 223 of the second color sub-pixel PX02 are located. Therefore, the area of ​​the pixel opening 221 and the aperture ratio of the third color sub-pixel PX03 can be increased.

[0222] In some examples, such as Figure 13 As shown, the orthographic projection of the pixel opening 221 of the first color sub-pixel PX01 of each sub-pixel group on the base substrate 210 is approximately circular, thereby improving the display effect of the display substrate in a dark state and enhancing the display effect of the display substrate.

[0223] In some examples, such as Figure 13 As shown, the area of ​​the orthographic projection of the pixel opening 221 of the third color sub-pixel PX03 on the substrate 210 is larger than the area of ​​the orthographic projection of the pixel opening 221 of the second color sub-pixel PX02 on the substrate 210, and the area of ​​the orthographic projection of the pixel opening 221 of the second color sub-pixel PX02 on the substrate 210 is larger than the area of ​​the orthographic projection of the pixel opening 221 of the first color sub-pixel PX01 on the substrate 210.

[0224] In some examples, such as Figure 13As shown, the plurality of raised line segments 224 are divided into a first group of raised line segments 2241 and a second group of raised line segments 2242. The first group of raised line segments 2241 and the second group of raised line segments 2242 are symmetrical about an axis parallel to the second direction Y. The plurality of raised line segments 224 in the first group of raised line segments 2241 are arranged at equal intervals, and the plurality of raised line segments 224 in the second group of raised line segments 2242 are arranged at equal intervals. This improves the uniformity of the display effect and the display effect of the display substrate.

[0225] In some examples, such as Figure 13 As shown, the length of the arc segment 223 between the first group of raised line segments 2241 and the second group of raised line segments 2242 is greater than the length of the arc segment 223 between two adjacent raised line segments 224 in the first group of raised line segments 2241. Thus, the space between two adjacent sub-pixels can be more fully utilized to further improve space utilization, thereby increasing the area of ​​the pixel opening 221 and the aperture ratio.

[0226] In some examples, such as Figure 13 As shown, the raised line segment 224 is an arc. Thus, the display effect of the display substrate, especially the dark state display effect, can be improved. For example, the raised line segment 224 is a semicircle.

[0227] Figure 14 Another schematic plan view of a display substrate provided by an embodiment of the present utility model. Figure 14 As shown, the raised line segment 224 of the sub-pixel includes a straight line segment 225. Thus, the area of ​​the pixel opening formed by the raised line segment 224 can be made larger, and the area of ​​the pixel opening 221 of the sub-pixel can be made larger. For example, the corners between two adjacent straight line segments 225 of the raised line segment 224 can be rounded.

[0228] In some examples, such as Figure 14 As shown, the pixel openings 221 of the first color sub-pixel PX01, the second color sub-pixel PX02, and the third color sub-pixel PX03 of each sub-pixel group all include raised line segments 224. For example, the number of raised line segments 224 of each sub-pixel in each sub-pixel group is equal. Of course, the embodiment of the present invention does not limit the number of raised line segments 224.

[0229] In some examples, such as Figure 13 and Figure 14 As shown, each raised line segment 224 has a maximum spacing L25 from the virtual circle, and the maximum spacing L25 is no less than 5 μm. This satisfies the molding process for the pixel opening 221 of the sub-pixel at the location of the raised line segment 224, ensuring the dimensional accuracy and quality of the product. For example, the maximum spacing L25 can be 6 μm, 8 μm, or 10 μm, which will not be detailed here.

[0230] In some examples, such as Figure 13 and Figure 14 As shown, the shape of the orthographic projection of the avoidance opening 241 of each sub-pixel on the substrate 210 is the same as the shape of the orthographic projection of the pixel opening 221 on the substrate 210. For example, the orthographic projection of the avoidance opening 241 on the substrate 210 and the orthographic projection of the pixel opening 221 on the substrate 210 are arranged at equal intervals. This ensures the display effect of the display substrate. Of course, the embodiment of the present invention does not limit the shape of the avoidance opening 241.

[0231] In some examples, such as Figure 13 and Figure 14 As shown, the total length of the arc segments of the pixel opening of the sub-pixel including the raised line segment 224d accounts for no less than 1 / 3 of the total perimeter of the pixel opening of the sub-pixel. Thus, the display effect, especially the dark state display effect, can be improved.

[0232] An embodiment of the utility model provides a display substrate. A pixel opening of a third color sub-pixel in each sub-pixel group of the display substrate includes a plurality of sub-pixel openings, a pixel defining layer includes a partition located between the plurality of sub-pixel openings, an orthographic projection of each sub-pixel opening of the third color sub-pixel on a base substrate includes at least one of a plurality of arc segments, and the orthographic projection of each sub-pixel opening of the third color sub-pixel on the base substrate also includes at least one straight line segment connected to the arc segment.

[0233] In the display substrate provided by an embodiment of the present invention, the pixel openings of the third color sub-pixels are designed in a block-by-block manner, such that the pixel openings of the third color sub-pixels include multiple sub-pixel openings, with two adjacent sub-pixel openings separated by a partition of a pixel defining layer. This reduces the area of ​​a single sub-pixel opening of the third color sub-pixels, avoiding the dark spot problem caused by an excessively large area of ​​a single sub-pixel opening of the third color sub-pixels. Each sub-pixel opening of the third color sub-pixels includes an arc segment and a straight line segment. The provision of the arc segment can improve the display effect of the display substrate in a dark state, enhancing the display effect. The provision of the straight line segment can prevent the area of ​​each sub-pixel opening of the third color sub-pixels from being too small, and prevent the sum of the sub-pixel openings of the third color sub-pixels from being too small, thereby ensuring the pixel opening area and aperture ratio of the third color sub-pixels. For example, when designing the pixel openings of the third color sub-pixels in a block-by-block manner, if the orthographic projections of the sub-pixel openings on the substrate are all arc segments, the area of ​​each sub-pixel opening may be significantly sacrificed while meeting the minimum process dimensions and minimum gap. The influence of the setting of the partition on the area occupied by the pixel opening and the influence of the arc segment of the sub-pixel opening on the area of ​​the pixel opening can be compensated by the setting of the straight line segment. Thus, it can solve the dark spot problem and ensure the display effect in the dark state, and can also ensure the pixel opening area and opening ratio of the third color sub-pixel.

[0234] Figure 15 Another schematic plan view of a display substrate provided by an embodiment of the present utility model. Figure 15 As shown, the pixel opening 221 of the third color sub-pixel PX03 of each sub-pixel group Gr includes a plurality of sub-pixel openings 2210, the pixel defining layer 220 includes a partition 2201 located between the plurality of sub-pixel openings 2210, and the orthographic projection of each sub-pixel opening 2210 of the third color sub-pixel PX03 on the base substrate 210 includes at least one of a plurality of arc segments 223, and the orthographic projection of each sub-pixel opening 2210 of the third color sub-pixel PX03 on the base substrate 210 also includes at least one straight line segment 225 connected to the arc segment 223.

[0235] In this example, the pixel opening 221 of the third color sub-pixel PX03 is designed in a block-like manner, reducing the area of ​​each sub-pixel opening 2210 of the third color sub-pixel PX03 and avoiding the dark spot problem caused by an excessively large area of ​​each sub-pixel opening 2210 of the third color sub-pixel PX03. Each sub-pixel opening 2210 of the third color sub-pixel PX03 includes an arc segment 223 and a straight segment 225. The provision of the arc segment 223 can improve the display effect of the display substrate in a dark state, enhancing the display effect. The provision of the straight segment 225 can increase the area of ​​the pixel opening 221 of the third color sub-pixel PX03 and the aperture ratio. For example, the arc segment 223 and the straight segment 225 of each sub-pixel opening 2210 of the third color sub-pixel PX03 can be rounded or right-angled.

[0236] In some examples, such as Figure 15 As shown, the multiple sub-pixel openings 2210 of the third color sub-pixel PX03 are arranged along the first direction X. By arranging the multiple sub-pixel openings 2210 of the third color sub-pixel PX03 along the first direction X, the space between two adjacent third color sub-pixels PX03 along the first direction X can be utilized as much as possible, thereby increasing the area of ​​the pixel opening 221 and the aperture ratio of the third color sub-pixel PX03.

[0237] In some examples, such as Figure 15 As shown, each sub-pixel opening 2210 includes two arc segments 223 arranged along the second direction Y and opposing each other. The center of curvature of each point on the two arc segments 223 is located between the two arc segments 223, and the two arc segments 223 are connected by at least one straight line segment 225. The sub-pixel opening 2210 includes two arc segments 223, which can improve the display quality of the display substrate, especially the dark-state display quality. The arrangement of the two arc segments 223 along the second direction Y facilitates the design of the arc segments 223, allowing the arc segments 223 to have a longer length, thereby improving the display quality of the display substrate, especially the dark-state display quality.

[0238] In some examples, such as Figure 15 As shown, the maximum dimension L26 of each sub-pixel opening 2210 along the second direction Y is not less than the maximum dimension L27 along the first direction X. Thus, the plurality of sub-pixel openings 2210 can be arranged along the first direction X, and the area of ​​the sub-pixel opening 2210 can be increased as much as possible by increasing the dimension in the second direction Y, thereby improving the opening area and aperture ratio.

[0239] In some examples, such as Figure 15 As shown, each sub-pixel opening 2210 of the third color sub-pixel PX03 includes a recessed portion 2211. The recessed portion 2211 is recessed toward the center of each sub-pixel opening 2210, and the recessed portion 2211 is located at least on one side of each sub-pixel opening 2210 that is adjacent to the adjacent sub-pixel opening 2210. The provision of the recessed portion 2211 can reduce the size of the sub-pixel opening 2210 along the first direction X, thereby allowing the multiple sub-pixel openings 2210 to be arranged along the first direction X, facilitating the structural design of the multiple sub-pixel openings 2210.

[0240] In some examples, such as Figure 15 As shown, each sub-pixel opening 2210 of the third color sub-pixel PX03 includes two recessed portions 2211 arranged along the first direction X. The two recessed portions 2211 are respectively located on either side of each sub-pixel opening 2210 along the first direction X. For example, the two recessed portions 2211 are symmetrical about an axis parallel to the second direction Y. Thus, the symmetry of the sub-pixel opening 2210 can be improved, the uniformity of the display effect can be improved, and the display effect of the display substrate can be improved.

[0241] For example, Figure 15 As shown, the two recessed portions 2211 are symmetrical about an axis parallel to the first direction X, and are also symmetrical about an axis parallel to the second direction Y.

[0242] In some examples, such as Figure 15 As shown, the shape of the orthographic projection of the concave portion 2211 on the base substrate 210 includes a straight line segment 225 .

[0243] In some examples, such as Figure 15As shown, the orthographic projection of the recessed portion 2211 on the base substrate 210 includes a bottom edge 2211a parallel to the second direction Y and two side edges 2211b parallel to the first direction X. The length of the side edges 2211b of the recessed portion 2211 is shorter than the length of the bottom edge 2211a. Thus, the length of the side edges 2211b of the recessed portion 2211 can be minimized, thereby reducing the effect of the recessed portion 2211 on the area reduction of the sub-pixel opening 2210 of the third color sub-pixel PX03. For example, the length of the side edges 2211b can be 1 / 2, 1 / 3, 1 / 4, etc., of the length of the bottom edge 2211a, and detailed descriptions are omitted here.

[0244] In some examples, such as Figure 15 As shown, the ratio of the length of the bottom edge 2211a of the recessed portion 2211 to the maximum spacing L26 between the two arc segments 223 along the second direction Y ranges from 1 / 6 to 5 / 6. By adjusting the length of the bottom edge 2211a, the size of the sub-pixel opening 2210 of the third color sub-pixel PX03 along the first direction X can be adjusted. Thus, the multiple sub-pixel openings 2210 can maximize the use of the space between two adjacent third color sub-pixels PX03 along the first direction X, thereby increasing the area and aperture ratio of the pixel opening 221 of the third color sub-pixel PX03. For example, the length of the bottom edge 2211a can be 1 / 3, 1 / 2, or the like of the maximum spacing between the two arc segments 223 along the second direction Y, which will not be further described herein.

[0245] In some examples, such as Figure 15 As shown, the two arc segments 223 of each sub-pixel opening 2210 of the third color sub-pixel PX03 include circular arcs or elliptical arcs. This can improve the display effect of the display substrate, especially the dark state display effect. The figure schematically shows that the arc segments 223 are circular arcs, but this embodiment of the utility model is not limited to this.

[0246] In some examples, such as Figure 15 As shown, the two arc segments 223 have the same shape, thereby improving the symmetry of the sub-pixel opening 2210, improving the uniformity of the display effect, and improving the display effect of the display substrate.

[0247] In some examples, such as Figure 15 As shown, the two arc segments 223 of each sub-pixel opening 2210 of the third color sub-pixel PX03 are located on the same virtual circle or the same virtual ellipse. This can improve the display quality of the display substrate, especially the dark state display quality. The figure schematically shows that the two arc segments 223 are located on the same virtual circle, but this embodiment of the utility model is not limited to this.

[0248] In some examples, such as Figure 15As shown, the pixel opening 221 of the first color sub-pixel PX01 and the sub-pixel openings 2210 of the third color sub-pixel PX03 have the same shape. For example, the pixel opening 221 of the second color sub-pixel PX02 and the sub-pixel openings 2210 of the third color sub-pixel PX03 have the same shape. This can improve the display effect of the display substrate.

[0249] In some examples, such as Figure 15 As shown, the orthographic projection of the pixel opening 221 of the first color sub-pixel PX01 on the substrate 210 includes two arc segments 223 arranged along the first direction X and opposite to each other, and a straight line segment 225 connecting the two arc segments 223. The center of curvature of each point on each arc segment 223 of the pixel opening 221 of the first color sub-pixel PX01 is located between the two arc segments 223. The pixel opening 221 of the first color sub-pixel PX01 also includes two concave portions 2211 arranged along the second direction Y. The two concave portions 2211 of the pixel opening 221 of the first color sub-pixel PX01 are located on either side of the pixel opening 221 along the second direction Y. For example, the two concave portions 2211 are symmetrical about an axis parallel to the first direction X. The first color sub-pixel PX01 and the third color sub-pixel PX03 are arranged along the second direction Y. By making the two recessed portions 2211 of the first color sub-pixel PX01 located on both sides of the pixel opening 221 of the first color sub-pixel PX01 along the second direction Y, the design of the pixel openings 221 of the first color sub-pixel PX01 and the third color sub-pixel PX03 can be facilitated.

[0250] In some examples, such as Figure 15 As shown, the orthographic projection of the pixel opening 221 of the second color sub-pixel PX02 on the substrate 210 includes two arc segments 223 arranged along the first direction X and opposite to each other, and a straight line segment 225 connecting the two arc segments 223. The center of curvature of each point on each arc segment 223 of the pixel opening 221 of the second color sub-pixel PX02 is located between the two arc segments 223. The pixel opening 221 of the second color sub-pixel PX02 also includes two concave portions 2211 arranged along the second direction Y. The two concave portions 2211 of the pixel opening 221 of the second color sub-pixel PX02 are located on either side of the pixel opening 221 along the second direction Y. For example, the two concave portions 2211 are symmetrical about an axis parallel to the first direction X. The second color sub-pixel PX02 and the third color sub-pixel PX03 are arranged along the second direction Y. By making the two recessed portions 2211 of the second color sub-pixel PX02 located on both sides of the pixel opening 221 of the second color sub-pixel PX02 along the second direction Y, the design of the pixel openings 221 of the second color sub-pixel PX02 and the third color sub-pixel PX03 can be facilitated.

[0251] In some examples, such as Figure 15 As shown, the orthographic projection of the concave portion 2211 of the pixel opening 221 of the first color sub-pixel PX01 on the substrate 210 includes a bottom side 2211a parallel to the first direction X and a side side 2211b parallel to the second direction Y. The concave portion 2211 of the pixel opening 221 of the second color sub-pixel PX02 includes a bottom side 2211a parallel to the first direction X and a side side 2211b parallel to the second direction Y. The orthographic projection area of ​​the pixel opening 221 of the second color sub-pixel PX02 of each sub-pixel group Gr on the substrate 210 is larger than the orthographic projection area of ​​the pixel opening 221 of the first color sub-pixel PX01 on the substrate 210, and the length of the bottom side 2211a of the concave portion 2211 of the pixel opening 221 of the second color sub-pixel PX02 is larger than the length of the bottom side 2211a of the concave portion 2211 of the pixel opening 221 of the first color sub-pixel PX01. By increasing the length of the bottom side 2211a of the recessed portion 2211 of the second color sub-pixel PX02, the area and the pixel opening 221 ratio of the second color sub-pixel PX02 can be increased without changing the shape and length of the arc segment 223 of the pixel opening 221 of the second color sub-pixel PX02.

[0252] In some examples, such as Figure 15 As shown, the length of the side edges 2211b of the concave portion 2211 of the pixel opening 221 of the first color sub-pixel PX01 and the second color sub-pixel PX02 is shorter than the length of the bottom edge 2211a. Thus, the length of the side edges 2211b of the concave portion 2211 can be minimized, reducing the effect of the concave portion 2211 on the area reduction of the pixel opening 221 of the first color sub-pixel PX01 and the second color sub-pixel PX02. For example, the length of the side edges 2211b can be 1 / 3, 1 / 4, etc., of the length of the bottom edge 2211a, which will not be further described here.

[0253] In some examples, such as Figure 15 As shown, the ratio of the length of the bottom edge 2211a of the concave portion 2211 of the pixel opening 221 of the first color sub-pixel PX01 and the second color sub-pixel PX02 to the maximum spacing between the two arc segments 223 along the second direction Y is in the range of 1 / 6 to 5 / 6. The first color sub-pixel PX01, the second color sub-pixel PX02, and the third color sub-pixel PX03 are arranged along the second direction Y. By setting the length of the bottom edge 2211a, the size of the pixel opening 221 of the first color sub-pixel PX01 and the second color sub-pixel PX02 along the second direction Y can be adjusted, thereby facilitating the arrangement of the three sub-pixels of each sub-pixel group Gr along the second direction Y. For example, the length of the bottom edge 2211a can be 1 / 3, 1 / 2, or the like of the maximum spacing between the two arc segments 223 along the second direction Y, which will not be further described herein.

[0254] In some examples, such as Figure 15 As shown, the shape and length of the arc segment 223 of the first color sub-pixel PX01 are the same as the shape and length of the arc segment 223 of the second color sub-pixel PX02, thereby improving the display effect of the display substrate.

[0255] In some examples, such as Figure 15 As shown, the total length of the arc segments 223 of each sub-pixel opening 2210 of the third color sub-pixel PX03 accounts for no less than 1 / 3 of the total perimeter of the orthographic projection of the sub-pixel opening 2210 on the substrate 210. By making the total length of the arc segments 223 as large as possible, the display quality of the display substrate, especially the dark state display quality, can be improved. For example, this ratio is greater than or equal to 1 / 2. For example, this ratio is greater than or equal to 3 / 5.

[0256] In some examples, such as Figure 15 As shown, the total length of the arc segment 223 of the pixel opening 221 of the first color sub-pixel PX01 and the second color sub-pixel PX02 accounts for no less than 1 / 3 of the total perimeter of the orthographic projection of the sub-pixel opening 2210 on the base substrate 210. For example, the ratio is greater than or equal to 1 / 2. For example, the ratio is greater than or equal to 3 / 5.

[0257] In some examples, such as Figure 15 As shown, the avoidance opening 241 of the third color sub-pixel PX03 includes multiple sub-avoidance openings 2410. The orthographic projection of one sub-pixel opening 2210 of the third color sub-pixel PX03 on the substrate 210 is located within the orthographic projection of one sub-avoidance opening 2410 on the substrate 210. By making one sub-pixel opening 2210 correspond to one sub-avoidance opening 2410, the reflectivity of the non-display area between two adjacent sub-pixel openings 2210 can be reduced, thereby improving the display effect. Of course, the embodiment of the present invention is not limited to this. For example, multiple sub-pixel openings of the third color sub-pixel can correspond to one avoidance opening, and the specific design can be based on optical requirements, etc.

[0258] For example, Figure 15 As shown, the sub-pixel opening 2210 of the third color sub-pixel PX03 has the same shape as the sub-avoidance opening 2410. Therefore, the sub-avoidance opening 2410 and the sub-pixel opening 2210 can be aligned, and the distance between two adjacent sub-avoidance openings 2410 can be minimized to avoid affecting the opening area of ​​the sub-pixel opening 2210.

[0259] In some examples, such as Figure 15As shown, the pixel opening 221 of the second color sub-pixel PX02 and its corresponding avoidance opening 241 have the same shape. Of course, the embodiment of the present invention is not limited to this. For example, the avoidance opening of the second color sub-pixel can be circular or elliptical.

[0260] For example, Figure 15 As shown, the avoidance opening 241 of the first color sub-pixel PX01 is circular or elliptical. For example, the local size of the pixel opening 221 of the first color sub-pixel PX01 is relatively small. Due to manufacturing process limitations, the avoidance opening 241 of the first color sub-pixel PX01 can be circular or elliptical, thereby simplifying the manufacturing process of the avoidance opening and improving the yield rate.

[0261] In some examples, such as Figure 15 As shown, the minimum spacing between two adjacent sub-pixel openings 2210 of the third color sub-pixels PX03 of each sub-pixel group Gr is a first spacing D21, and the minimum spacing between two pixel openings 221 of the third color sub-pixels PX03 of two adjacent sub-pixel groups Gr along the first direction X is a second spacing D22, where the first spacing D21 is smaller than the second spacing D22. Thus, not only can the pixel aperture ratio of the third color sub-pixels PX03 of each sub-pixel group be improved, but the lifespan of the third color sub-pixels of each sub-pixel group can also be guaranteed.

[0262] For example, the first distance D21 may be set to a minimum size that can be achieved by the molding process, thereby further improving the pixel aperture ratio.

[0263] For example, the second distance D22 may range from 18 μm to 26 μm. For example, the second distance D22 may be 20 μm, 24 μm, etc., which will not be described in detail here.

[0264] Figure 16 Another schematic plan view of a display substrate provided by an embodiment of the present utility model. Figure 16 As shown, the plurality of sub-pixel openings 2210 of the third color sub-pixel PX03 are arranged along the first direction X. Each sub-pixel opening 2210 includes two arc segments 223 arranged along the second direction Y and opposite to each other, and the center of curvature of each point on the two arc segments 223 is located between the two arc segments 223. The two arc segments 223 are connected by two straight line segments 225 parallel to the second direction Y.

[0265] In this example, the pixel opening 221 of the third color sub-pixel PX03 is designed in a block-by-block manner, reducing the area of ​​each sub-pixel opening 2210 of the third color sub-pixel PX03 and avoiding the dark spot problem caused by an excessively large sub-pixel opening 2210 of the third color sub-pixel PX03. Each sub-pixel opening 2210 of the third color sub-pixel PX03 includes an arc segment 223 and a straight segment 225. The provision of the arc segment 223 can improve the display effect of the display substrate in a dark state, enhancing the display effect. The provision of the straight segment 225 can increase the area of ​​the pixel opening 221 of the third color sub-pixel PX03 and the aperture ratio.

[0266] In some examples, such as Figure 16 As shown, the maximum dimension L26 of each sub-pixel opening 2210 of the third color sub-pixel PX03 along the second direction Y is equal to the maximum dimension L27 along the first direction X. This improves the display quality of the display substrate. For example, the maximum dimension of each sub-pixel opening 2210 of the third color sub-pixel PX03 along the second direction Y may also be greater than the maximum dimension along the first direction X. This facilitates the arrangement of the multiple sub-pixel openings 2210 of the third color sub-pixel PX03.

[0267] In some examples, such as Figure 16 As shown, the two arc segments 223 of each sub-pixel opening 2210 of the third color sub-pixel PX03 include circular arcs. For example, the two arc segments 223 have the same shape. Thus, the display effect of the display substrate can be improved.

[0268] In some examples, such as Figure 16 As shown, the pixel opening 221 of the second color sub-pixel PX02 and the sub-pixel openings 2210 of the third color sub-pixel PX03 have the same shape. For example, the orthographic projection of the pixel opening 221 of the first color sub-pixel PX01 on the base substrate 210 is circular or elliptical. This can improve the display effect of the display substrate.

[0269] In some examples, such as Figure 16 As shown, the pixel opening 221 of the second color subpixel PX02 includes two arc segments 223 arranged along the first direction X and opposite to each other, with the center of curvature of each point on the two arc segments 223 located between the two arc segments 223. The two arc segments 223 are connected by two straight line segments 225 parallel to the first direction X. The second color subpixel PX02 and the third color subpixel PX03 are arranged along the second direction Y. By making the straight line segments 225 of the second color subpixel PX02 parallel to the first direction X, the arrangement of the second color subpixels PX02 and the third color subpixels PX03 in the second direction Y of each subpixel group is facilitated.

[0270] In some examples, such as Figure 16 As shown, the maximum dimension of the pixel opening 221 of the second color sub-pixel PX02 along the second direction Y is smaller than the maximum dimension along the first direction X. This arrangement facilitates the arrangement of the second color sub-pixels PX02 and the third color sub-pixels PX03 in the second direction Y of each sub-pixel group.

[0271] In some examples, such as Figure 16 As shown, the light-emitting functional layers 232 of the third color sub-pixels PX03 of two adjacent sub-pixel groups along the first direction X are integrated into a shared light-emitting functional layer 2320. The light-emitting functional layers 232 of the third color sub-pixels PX03 of the two adjacent sub-pixel groups are formed through the same mask opening of the same mask plate. Therefore, the shared light-emitting functional layer 232 can utilize the area between the third color sub-pixels PX03 of the two adjacent sub-pixel groups, and the shared light-emitting functional layer 232 can have a larger area, thereby increasing the pixel opening 221 ratio of the third color sub-pixels PX03 of each sub-pixel group.

[0272] In some examples, such as Figure 16 As shown, the minimum spacing between two adjacent sub-pixel openings 2210 of the third color sub-pixels PX03 of each sub-pixel group Gr is a first spacing D21. The light-emitting functional layers 232 of the third color sub-pixels PX03 of two adjacent sub-pixel groups along the first direction X are integrated into a common light-emitting functional layer 2320. The minimum spacing between the pixel openings 221 of the two third color sub-pixels PX03 of the two sub-pixel groups is a second spacing D22, and the first spacing D21 is equal to the second spacing D22. Thus, the display effect can be improved. In addition, the first spacing D21 and the second spacing D22 can be set to the minimum size achievable by the molding process, thereby further improving the pixel aperture ratio.

[0273] Figure 17 Another schematic plan view of a display substrate provided by an embodiment of the present invention. Figure 17 The display substrate shown is Figure 16 One of the differences between the display substrates shown is that Figure 17 The pixel opening 221 of the first color sub-pixel PX01 and the pixel opening 2210 of the third color sub-pixel PX03 of each sub-pixel shown in FIG. Figure 17As shown, the pixel opening 221 of the first color subpixel PX01 includes two arc segments 223 arranged along the first direction X and opposite to each other. The center of curvature of each point on the two arc segments 223 is located between the two arc segments 223. The two arc segments 223 are connected by two straight line segments 225 parallel to the first direction X. The first color subpixel PX01 and the third color subpixel PX03 are arranged along the second direction Y. By making the straight line segments 225 of the first color subpixel PX01 parallel to the first direction X, the arrangement of the first color subpixel PX01 and the third color subpixel PX03 in the second direction Y of each subpixel group is facilitated.

[0274] In some examples, such as Figure 17 As shown, the light-emitting function layer of the third color sub-pixel PX03 of each sub-pixel group may not be integrated with the light-emitting function layer of the third color sub-pixel PX03 of the adjacent sub-pixel.

[0275] The embodiments of the present invention do not limit this.

[0276] Figure 18 Another schematic plan view of a display substrate provided by an embodiment of the present utility model. Figure 18 As shown, multiple sub-pixel openings 2210 of the third color sub-pixel PX03 are arranged along the first direction X. Each sub-pixel opening 2210 includes an arc segment 223 and a straight line segment 225 connecting the two endpoints of the arc segment 223. The two straight line segments 225 of two adjacent sub-pixel openings 2210 of the third color sub-pixel PX03 along the first direction X face each other. The segmented design of the pixel openings 221 of the third color sub-pixel PX03 can solve the dark spot problem. The provision of the arc segment 223 can improve the display effect of the display substrate in the dark state. The provision of the straight line segment 225 can increase the area and aperture ratio of the pixel opening 221 of the third color sub-pixel PX03. The two straight line segments 225 facing each other can provide a better display effect for the third color sub-pixel PX03.

[0277] In some examples, such as Figure 18 As shown, the arc segment 223 of each sub-pixel opening 2210 of the third color sub-pixel PX03 is a portion of an ellipse, and the major axis of the ellipse within which the arc segment 223 lies is parallel to the first direction X. Thus, the size of each sub-pixel opening 2210 in the first direction X can be increased, thereby improving the area of ​​each sub-pixel opening 2210. Of course, this embodiment of the present invention is not limited to this. The arc segment 223 of each sub-pixel opening 2210 can also be circular, thereby improving the display quality of the display substrate, especially the dark state display quality.

[0278] In some examples, such as Figure 18As shown, the pixel opening 221 of the first color sub-pixel PX01 of each sub-pixel group Gr includes two sub-pixel openings 2210. Each sub-pixel opening 2210 of the first color sub-pixel PX01 includes an arc segment 223 and a straight line segment 225 connecting the two endpoints of the arc segment 223. The two straight line segments 225 of two adjacent sub-pixel openings 2210 of the first color sub-pixel PX01 along the first direction X face each other. The block design of the pixel opening 221 of the first color sub-pixel PX01 can solve the dark spot problem. The provision of the arc segment 223 can improve the display effect of the display substrate in the dark state. The provision of the straight line segment 225 can increase the area and aperture ratio of the pixel opening 221 of the first color sub-pixel PX01. The two straight line segments 225 facing each other can provide the first color sub-pixel PX01 with a better display effect.

[0279] In some examples, such as Figure 18 As shown, the pixel opening 221 of the second color sub-pixel PX02 of each sub-pixel group includes two sub-pixel openings 2210. Each sub-pixel opening 2210 of the second color sub-pixel PX02 includes an arc segment 223 and a straight line segment 225 connecting the two endpoints of the arc segment 223. The two straight line segments 225 of two adjacent sub-pixel openings 2210 of the second color sub-pixel PX02 along the first direction X face each other. The segmented design of the pixel opening 221 of the second color sub-pixel PX02 can solve the dark spot problem. The provision of the arc segment 223 can improve the display effect of the display substrate in the dark state. The provision of the straight line segment 225 can increase the area and aperture ratio of the pixel opening 221 of the first color sub-pixel PX01. The facing of the two straight line segments 225 can provide a better display effect for the second color sub-pixel PX02.

[0280] Figure 18 The pixel opening 221 of each of the first and second color subpixels PX01 and PX02 is schematically shown to include two subpixel openings 2210. However, the pixel opening 221 of one of the first and second color subpixels PX01 and PX02 may include two subpixel openings 2210 as required.

[0281] In some examples, such as Figure 18 As shown, the two arc segments 223 of the two sub-pixel openings 2210 of the first color sub-pixel PX01 are located on the same virtual circle. For example, the two arc segments 223 of the two sub-pixel openings 2210 of the second color sub-pixel PX02 are located on the same virtual ellipse. This can improve the display quality of the display substrate, especially the dark state display quality, and can also increase the total area of ​​the sub-pixel openings 2210 of the second color sub-pixel PX02.

[0282] In some examples, such as Figure 18 As shown, each sub-pixel opening 2210 of the third color sub-pixel PX03 has a corresponding sub-avoidance opening 2410 , one sub-pixel opening 2210 corresponds to one sub-avoidance opening 2410 , and both have the same shape.

[0283] In some examples, such as Figure 18 As shown, the orthographic projections of the two sub-pixel openings 2210 of the second color sub-pixel PX02 on the base substrate 210 are located within the orthographic projection of the same avoidance opening 241 on the base substrate 210. For example, the orthographic projections of the two sub-pixel openings 2210 of the first color sub-pixel PX01 on the base substrate 210 are located within the orthographic projection of the same avoidance opening 241 on the base substrate 210.

[0284] In some examples, such as Figure 18 As shown, the minimum spacing between two adjacent sub-pixel openings 2210 of the second color sub-pixel PX02 of each sub-pixel group Gr is a third spacing D23. The minimum spacing between two pixel openings 221 of the first color sub-pixel PX01 and the second color sub-pixel PX02 of each sub-pixel group Gr is a fourth spacing D24. The third spacing D23 is smaller than the fourth spacing D24. This not only improves the pixel aperture ratio of the second color sub-pixel PX02, but also ensures the lifespan of the first and second color sub-pixels.

[0285] In some examples, such as Figure 18 As shown, the minimum spacing between two adjacent sub-pixel openings 2210 of the first color sub-pixel PX01 of each sub-pixel group Gr is a fifth spacing D25. The fifth spacing D25 is smaller than the fourth spacing D24. Thus, not only can the pixel aperture ratio of the first color sub-pixel PX01 be improved, but the lifespan of the first color sub-pixel and the second color sub-pixel can also be guaranteed.

[0286] In some examples, such as Figure 18 As shown, the third distance D23 is equal to the fifth distance D25, which can improve the display effect. In addition, the third distance D23 and the fifth distance D25 can be set to the minimum size that can be achieved by the molding process, thereby also improving the pixel aperture ratio.

[0287] In some examples, such as Figure 18 As shown, the first distance D21, the third distance D23 and the fifth distance D25 are equal, which can improve the display effect.

[0288] In some examples, such as Figure 18 As shown, the fourth distance D24 has a value range of 18 μm-26 μm. For example, the fourth distance D24 can be 20 μm, 24 μm, etc., which will not be described in detail here.

[0289] Figure 19 Another schematic plan view of a display substrate provided by an embodiment of the present utility model. Figure 19 As shown, the plurality of sub-pixel openings 2210 of the third color sub-pixel PX03 are arranged in an array along the first direction X and the second direction Y. Each sub-pixel opening 2210 includes an arc segment 223 and a straight line segment 225 connecting the two end points of the arc segment 223. Arranging the plurality of sub-pixel openings 2210 in an array along the first direction X and the second direction Y can further reduce the area of ​​the sub-pixel openings 2210, thereby avoiding the dark spot problem.

[0290] In some examples, such as Figure 19 As shown, the two straight line segments 225 of the two sub-pixel openings 2210 arranged along the second direction Y face each other. Thus, the third color sub-pixel PX03 can have a better display effect.

[0291] In some examples, such as Figure 19 As shown, the two arc segments 223 of the two sub-pixel openings 2210 arranged along the second direction Y are located on the same virtual circle. Thus, the display effect of the display substrate, especially the dark state display effect, can be improved.

[0292] In some examples, such as Figure 19 As shown, the pixel opening 221 of the second color sub-pixel PX02 of each sub-pixel group Gr includes two sub-pixel openings 2210. Each sub-pixel opening 2210 of the second color sub-pixel PX02 includes an arc segment 223 and a straight line segment 225 connecting the two endpoints of the arc segment 223. The two straight line segments 225 of two adjacent sub-pixel openings 2210 of the second color sub-pixel PX02 along the first direction X face each other. The block design of the pixel opening 221 of the second color sub-pixel PX02 can solve the dark spot problem. The provision of the arc segment 223 can improve the display effect of the display substrate in the dark state. The provision of the straight line segment 225 can increase the area and aperture ratio of the pixel opening 221 of the first color sub-pixel PX01. The two straight line segments 225 facing each other can provide a better display effect for the second color sub-pixel PX02.

[0293] In some examples, such as Figure 19 As shown, the orthographic projection of the pixel opening 221 of the first color sub-pixel PX01 of each sub-pixel group on the base substrate 210 is approximately circular.

[0294] In some examples, such as Figure 19 As shown, each sub-pixel opening 2210 of the third color sub-pixel PX03 and the second color sub-pixel PX02 has a corresponding sub-avoidance opening 2410 , one sub-pixel opening 2210 corresponds to one sub-avoidance opening 2410 , and both have the same shape.

[0295] Figure 20 Another schematic plan view of a display substrate provided by an embodiment of the present utility model. Figure 20 As shown, the orthographic projection of each subpixel opening 2210 of the third color subpixel PX03 on the substrate 210 comprises a fan-shaped shape. The multiple subpixel openings 2210 include two first subpixel openings 22101 arranged along a first direction X and two second subpixel openings 22102 arranged along a second direction Y. The vertices of the two first subpixel openings 22101 face each other, and the vertices of the two second subpixel openings 22102 face each other. In this example, the third color subpixel PX03 includes four subpixel openings 2210, which can further reduce the area of ​​the subpixel openings 2210 and avoid the dark spot problem. The fan-shaped shape of the four pixel openings 221, with their vertices facing each other, can improve the display quality of the third color subpixel PX03, especially the dark state display quality.

[0296] In some examples, such as Figure 20 As shown, the distance L28 between the two first sub-pixel openings 22101 is greater than the distance L29 between the two second sub-pixel openings 22102. The third color sub-pixels PX03 are arranged along the first direction X. By making the distance L28 between the two first sub-pixel openings 22101 greater than the distance L29 between the two second sub-pixel openings 22102, the space between two adjacent third color sub-pixels PX03 along the first direction X can be utilized as much as possible, thereby increasing the area of ​​the pixel opening 221 and the aperture ratio of the third color sub-pixel PX03. Of course, the embodiment of the present invention is not limited to this. For example, the distance between the two first sub-pixel openings 22101 can also be equal to the distance between the two second sub-pixel openings 22102.

[0297] In some examples, such as Figure 20 As shown, the orthographic projection of each sub-pixel opening 2210 of the third color sub-pixel PX03 on the base substrate 210 includes a fan-shaped shape, which includes two straight line segments 225 and one arc segment 223 .

[0298] In some examples, such as Figure 20 As shown, the angle between the two straight line segments 225 of the first sub-pixel opening 22101 is a first angle θ1, and the angle between the two straight line segments 225 of the second sub-pixel opening 22102 is a second angle θ2. The difference between the first angle θ1 and the second angle θ2 is no greater than 50 degrees. Thus, the first sub-pixel opening 22101 and the second sub-pixel opening 22102 can have the same shape, improving the display effect of the third color sub-pixel and the display substrate.

[0299] In some examples, such as Figure 20As shown, the diameters of the circles encompassing the arc segments 223 of the sub-pixel openings 2210 of the third color sub-pixel PX03 are the same. For example, the diameter of the circle encompassing the arc segment 223 of the first sub-pixel opening 22101 is the same as the diameter of the circle encompassing the arc segment 223 of the second sub-pixel opening 22102. Thus, the first sub-pixel opening 22101 and the second sub-pixel opening 22102 can have the same shape, thereby improving the display effect of the third color sub-pixel PX03 and the display substrate.

[0300] In some examples, such as Figure 20 As shown, the orthographic projection of the pixel opening 221 of the second color sub-pixel PX02 on the base substrate 210 is an ellipse, and the major axis of the ellipse is parallel to the first direction X. For example, the orthographic projection of the pixel opening 221 of the first color sub-pixel PX01 on the base substrate 210 is a circle.

[0301] In some examples, the first color is red, the second color is green, and the third color is blue.

[0302] In some examples, the area of ​​the pixel opening of the third color sub-pixel of each sub-pixel group projected on the substrate is not less than 2000 μm. 2 For example, the sum of the orthographic projection areas of all sub-pixel openings of the third color sub-pixels of each sub-pixel group on the base substrate is not less than 2000 μm. 2 For example, the above area can be larger than 3000 μm 2 . The embodiment of the present invention does not limit the specific numerical value of the area. For example, the display substrate of the present invention is a medium-to-large-sized display substrate. For example, for medium-to-large-sized display substrates, compared with small-sized display substrates used for mobile phones, watches, etc., the pixel opening area of ​​the third color sub-pixel of the medium-to-large-sized display substrate is larger, and the probability of dark spots occurring is greater. By adopting the technical solution of the above-mentioned display substrate of the present invention, the dark spot problem can be effectively solved, and the display effect and display efficiency can be improved.

[0303] An embodiment of the present invention further provides a display device. Figure 21 This is a schematic diagram of an embodiment of the present invention. Figure 21 As shown, the display device includes any of the display substrates described above, so that the display device has the corresponding beneficial effects of the display substrate, which will not be repeated here.

[0304] For example, the display device can be any product or component with a display function, such as a television, a laptop computer, a tablet computer, a mobile phone, a navigator, a wearable device, a virtual reality device, or the like.

[0305] There are a few points to note:

[0306] (1) The drawings of the embodiments of the present invention only relate to the structures related to the embodiments of the present invention, and other structures may refer to conventional designs.

[0307] (2) Unless there is a conflict, the features of the same embodiment and different embodiments of the present invention may be combined with each other.

[0308] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A display substrate, characterized in that: include: substrate; A pixel defining layer is located on the base substrate; as well as A light emitting device layer is located on the substrate. The display substrate includes a plurality of sub-pixels, the plurality of sub-pixels include a plurality of first color sub-pixels, a plurality of second color sub-pixels, and a plurality of third color sub-pixels. The plurality of sub-pixels are divided into a plurality of sub-pixel groups, each of the sub-pixel groups includes one first color sub-pixel, one second color sub-pixel, and one third color sub-pixel. The plurality of sub-pixel groups are arranged in an array along a first direction and a second direction intersecting the first direction, the first color sub-pixels and the second color sub-pixels of each sub-pixel group are arranged along the first direction, and the first color sub-pixels and the third color sub-pixels of each sub-pixel group are arranged along the second direction. Each of the sub-pixels includes a pixel opening located in the pixel defining layer, an orthographic projection area of ​​the pixel opening of the third color sub-pixel on the base substrate is larger than an orthographic projection area of ​​the pixel openings of the first color sub-pixel and the second color sub-pixel on the base substrate, the pixel opening of the third color sub-pixel of each sub-pixel group includes M sub-pixel openings, and the pixel defining layer includes a partition located between the M sub-pixel openings. Each of the sub-pixels also includes a light-emitting device located in the light-emitting device layer, and the light-emitting device includes a light-emitting functional layer. The light-emitting functional layers of the two third-color sub-pixels of the two sub-pixel groups adjacent along the first direction are integrated into a common light-emitting functional layer. The common light-emitting functional layer of the two sub-pixel groups adjacent along the first direction includes 2M sub-light-emitting portions located in the sub-pixel openings of the two third-color sub-pixels, where M is a positive integer greater than 1.

2. The display substrate according to claim 1, wherein: The two adjacent sub-pixel groups along the first direction include a first sub-pixel group and a second sub-pixel group, and the light-emitting functional layers of the third color sub-pixels of the first sub-pixel group and the second sub-pixel group are integrated into the common light-emitting functional layer. The minimum spacing between two adjacent sub-pixel openings of the third color sub-pixel of the first sub-pixel group is a first spacing, the minimum spacing between the sub-pixel opening of the third color sub-pixel of the first sub-pixel group closest to the second sub-pixel group and the sub-pixel opening of the third color sub-pixel of the second sub-pixel group closest to the first sub-pixel group is a second spacing, and the first spacing is equal to the second spacing.

3. The display substrate according to claim 1, wherein The two adjacent sub-pixel groups along the first direction include a first sub-pixel group and a second sub-pixel group, and the light-emitting functional layers of the third color sub-pixels of the first sub-pixel group and the second sub-pixel group are integrated into the common light-emitting functional layer. The M sub-pixel openings of the third color sub-pixel of the first sub-pixel group include a first sub-pixel opening and a second sub-pixel opening arranged along the first direction, the first sub-pixel opening is located on a side of the second sub-pixel opening away from the second sub-pixel group, and the area of ​​the orthographic projection of the first sub-pixel opening on the substrate is not larger than the area of ​​the orthographic projection of the second sub-pixel opening on the substrate.

4. The display substrate according to claim 3, wherein: A ratio of an area of ​​an orthographic projection of the second sub-pixel opening of the third color sub-pixel on the base substrate to an area of ​​an orthographic projection of the first sub-pixel opening on the base substrate is not less than 2.

5. The display substrate according to claim 3, wherein: A dimension of the second sub-pixel opening along the first direction is not smaller than a dimension along the second direction.

6. The display substrate according to claim 3, wherein: The M sub-pixel openings of the third color sub-pixel of the first sub-pixel group include two first sub-pixel openings and two second sub-pixel openings, the two first sub-pixel openings are arranged along the second direction, and the two second sub-pixel openings are arranged along the second direction.

7. The display substrate according to any one of claims 2 to 6, wherein: The M sub-pixel openings of the third color sub-pixels of the first sub-pixel group and the second sub-pixel group are symmetrical about an axis parallel to the second direction.

8. The display substrate according to any one of claims 2 to 6, characterized in that: The area of ​​the orthographic projection of the pixel opening of the second color sub-pixel of each sub-pixel group on the base substrate is larger than the area of ​​the orthographic projection of the pixel opening of the first color sub-pixel on the base substrate. The pixel openings of the second color sub-pixels of each sub-pixel group include M sub-pixel openings, and the M sub-pixel openings of the second color sub-pixels of each sub-pixel group are arranged in the same manner as the M sub-pixel openings of the third color sub-pixels.

9. The display substrate according to claim 8, wherein: The pixel openings of the first color sub-pixels of each of the sub-pixel groups include M sub-pixel openings, and the M sub-pixel openings of the first color sub-pixels of each of the sub-pixel groups are arranged in the same manner as the M sub-pixel openings of the third color sub-pixels. The M sub-pixel openings of the first color sub-pixel of each of the sub-pixel groups include a third sub-pixel opening and a fourth sub-pixel opening arranged along the first direction, and the M sub-pixel openings of the second color sub-pixel include a fifth sub-pixel opening and a sixth sub-pixel opening arranged along the first direction, the third sub-pixel opening is located on a side of the fourth sub-pixel opening away from the second color sub-pixel, and the sixth sub-pixel opening is located on a side of the fifth sub-pixel opening away from the first color sub-pixel. The area of ​​the third sub-pixel opening is not greater than the area of ​​the fourth sub-pixel opening, and the area of ​​the sixth sub-pixel opening is not greater than the area of ​​the fifth sub-pixel opening.

10. The display substrate according to claim 1, wherein The two sub-pixel groups adjacent to each other along the first direction include a first sub-pixel group and a second sub-pixel group, the sub-pixel group adjacent to the first sub-pixel group along the second direction is a third sub-pixel group, and the sub-pixel group adjacent to the second sub-pixel group along the second direction is a fourth sub-pixel group. The light-emitting functional layers of the third color sub-pixels of the first sub-pixel group, the second sub-pixel group, the third sub-pixel group, and the fourth sub-pixel group are integrated into a common light-emitting functional layer, and the common light-emitting functional layer of the first sub-pixel group, the second sub-pixel group, the third sub-pixel group, and the fourth sub-pixel group includes 4M sub-light-emitting portions located in the sub-pixel opening of the third color sub-pixel, The M subpixel openings of the third color subpixels of the first, second, third, and fourth subpixel groups are symmetrical about an axis parallel to the first direction and an axis parallel to the second direction.

11. The display substrate according to claim 10, wherein: The plurality of sub-pixels are further divided into a plurality of sub-pixel columns, each of the sub-pixel columns including a plurality of sub-pixels arranged along the first direction, The multiple sub-pixel columns include a first sub-pixel column, a second sub-pixel column, a third sub-pixel column and a fourth sub-pixel column arranged in sequence along the second direction, the first sub-pixel column includes first color sub-pixels and second color sub-pixels arranged alternately along the first direction, the multiple sub-pixels of the second sub-pixel column are repeatedly arranged along the first direction in the order of the first color sub-pixel, the second color sub-pixel, the third color sub-pixel, and the third color sub-pixel, the sub-pixels of the third sub-pixel column are the third color sub-pixels, and the multiple sub-pixels of the fourth sub-pixel column are repeatedly arranged along the first direction in the order of the first color sub-pixel, the second color sub-pixel, the third color sub-pixel, and the third color sub-pixel.

12. The display substrate according to any one of claims 1 to 6, characterized in that: The M sub-pixel openings of the third color sub-pixel of each sub-pixel group include two sub-pixel openings arranged along the first direction, and the two sub-pixel openings include a pair of adjacent edges facing each other, and the extension direction of at least one edge of the pair of adjacent edges intersects both the first direction and the second direction.

13. The display substrate according to any one of claims 1 to 6, characterized in that: The M sub-pixel openings of the third color sub-pixel of each sub-pixel group have a polygonal shape, and the polygon includes at least one side parallel to the first direction and at least one side parallel to the second direction.

14. The display substrate according to any one of claims 1 to 6, characterized in that: The minimum distance between two adjacent sub-pixel openings of the third color sub-pixels of each sub-pixel group is not less than 6 μm.

15. The display substrate according to any one of claims 1 to 6, characterized in that: The light-emitting device of each sub-pixel also includes a first electrode located on the side of the light-emitting functional layer close to the base substrate, the M sub-pixel openings of the third color sub-pixel are located within the orthographic projection of the first electrode of the light-emitting device of the third color sub-pixel on the base substrate, and the orthographic projection of the partition between the M sub-pixel openings on the base substrate at least partially overlaps with the orthographic projection of the first electrode of the light-emitting device of the third color sub-pixel on the base substrate.

16. The display substrate according to any one of claims 1 to 6, characterized in that: The light-emitting device of each sub-pixel further includes a first electrode located on a side of the light-emitting functional layer close to the base substrate, and the first electrode of the light-emitting device of the third color sub-pixel includes M sub-electrode portions spaced apart from each other and a connecting portion connecting the M sub-electrode portions to each other. The M sub-electrode portions of the third color sub-pixel correspond one-to-one to the M sub-pixel openings, and the sub-pixel opening exposes at least a portion of the sub-electrode portion of the corresponding third color sub-pixel.

17. The display substrate according to any one of claims 1 to 6, characterized in that: The ratio of the area of ​​the orthographic projection of the pixel opening of the third color sub-pixel of each sub-pixel group on the base substrate to the total area of ​​the orthographic projection of all pixel openings of the sub-pixel group on the base substrate is in the range of 40%-60%.

18. The display substrate according to any one of claims 1 to 6, characterized in that: The value range of M is 2-10.

19. The display substrate according to any one of claims 1 to 6, characterized in that: Also includes: a color filter layer, located on a side of the light-emitting device layer away from the base substrate, Each of the sub-pixels further includes a color filter pattern located on the color filter layer, and the orthographic projection of the pixel opening of each of the sub-pixels on the base substrate falls within the orthographic projection of the color filter pattern on the base substrate.

20. The display substrate according to claim 19, wherein The invention also includes a black matrix layer, wherein each of the sub-pixels further includes an avoidance opening located in the black matrix layer, and the orthographic projection of the pixel opening of each sub-pixel on the base substrate falls within the orthographic projection of the avoidance opening on the base substrate. The avoidance opening of the third color sub-pixel includes multiple sub-avoidance openings, the orthographic projection of one sub-pixel opening of the third color sub-pixel on the base substrate is located within the orthographic projection of one sub-avoidance opening on the base substrate, and the sub-pixel opening of the third color sub-pixel has the same shape as the sub-avoidance opening.

21. The display substrate according to claim 20, wherein: The pixel opening of the first color sub-pixel includes two sub-pixel openings, the orthographic projections of the two sub-pixel openings of the first color sub-pixel on the substrate are located within the orthographic projection of the same avoidance opening on the substrate, and / or The pixel opening of the second color sub-pixel includes two sub-pixel openings, and the orthographic projections of the two sub-pixel openings of the second color sub-pixel on the base substrate are located within the orthographic projection of the same avoidance opening on the base substrate.

22. A display substrate, characterized in that: include: substrate; A pixel defining layer is located on the base substrate; A light-emitting device layer is located on the base substrate; as well as a color filter layer, located on a side of the light-emitting device layer away from the base substrate, The display substrate includes a plurality of sub-pixels, the plurality of sub-pixels include a plurality of first color sub-pixels, a plurality of second color sub-pixels, and a plurality of third color sub-pixels. The plurality of sub-pixels are divided into a plurality of sub-pixel groups, each of the sub-pixel groups includes one first color sub-pixel, one second color sub-pixel, and one third color sub-pixel. The plurality of sub-pixel groups are arranged in an array along a first direction and a second direction intersecting the first direction, the first color sub-pixels and the second color sub-pixels of each sub-pixel group are arranged along the first direction, and the first color sub-pixels and the third color sub-pixels of each sub-pixel group are arranged along the second direction. Each of the sub-pixels includes a pixel opening located in the pixel defining layer, a light-emitting device located in the light-emitting device layer, and a color filter pattern located in the color filter layer. The orthographic projection of the pixel opening of each sub-pixel on the base substrate falls within the orthographic projection of the color filter pattern on the base substrate. The orthographic projection of the pixel opening of each sub-pixel on the substrate includes a plurality of arc segments, and the center of curvature of each point on each arc segment is located on the same side of the arc segment.

23. The display substrate according to claim 22, wherein: The multiple arc segments of the pixel opening of the third color sub-pixel include a first arc segment and a second arc segment, the two ends of the first arc segment and the second arc segment are respectively connected, the first arc segment protrudes along the first direction and in a direction away from the second arc segment, and the second arc segment protrudes along the first direction away from the first arc segment. The maximum dimension of the pixel opening of the third color sub-pixel along the first direction is a first dimension, and the maximum dimension along the second direction is a second dimension, and the first dimension is larger than the second dimension.

24. The display substrate according to claim 23, wherein: The shape of the first arc segment includes a portion of an ellipse, the major axis of the ellipse where the first arc segment is located is parallel to the first direction, and the line connecting the two endpoints of the first arc segment is equal to the minor axis of the ellipse where the first arc segment is located.

25. The display substrate according to claim 24, wherein: The shape of the second arc segment includes a portion of a circle, and a line connecting two endpoints of the second arc segment is equal to the diameter of the circle in which the second arc segment lies, or The shape of the second arc segment includes a portion of an ellipse, the major axis of the ellipse where the second arc segment is located is parallel to the second direction, and the line connecting the two endpoints of the second arc segment is equal to the major axis of the ellipse where the second arc segment is located.

26. The display substrate according to any one of claims 23 to 25, characterized in that: The two sub-pixel groups adjacent to each other along the first direction include a first sub-pixel group and a second sub-pixel group, the sub-pixel group adjacent to the first sub-pixel group along the second direction is a third sub-pixel group, and the sub-pixel group adjacent to the second sub-pixel group along the second direction is a fourth sub-pixel group. The two arc segments facing each other of the pixel openings of the third color sub-pixels of the first sub-pixel group and the second sub-pixel group are the second arc segments, and the two arc segments facing each other of the pixel openings of the third color sub-pixels of the third sub-pixel group and the fourth sub-pixel group are the first arc segments.

27. The display substrate according to claim 26, wherein: A minimum pitch between the pixel openings of the third color subpixels of the first and second subpixel groups is greater than a minimum pitch between the pixel openings of the third color subpixels of the third and fourth subpixel groups.

28. The display substrate according to claim 26, wherein: A quadrilateral formed by sequentially connecting geometric centers of the pixel openings of the third color sub-pixels of the first sub-pixel group, the second sub-pixel group, the third sub-pixel group, and the fourth sub-pixel group includes a pair of opposite and non-parallel sides.

29. The display substrate according to claim 22, wherein: The orthographic projection of the pixel opening of at least one of the multiple sub-pixels on the substrate also includes a plurality of raised line segments, each of the raised line segments is located between two adjacent arc segments and connects the two adjacent arc segments, and each of the raised line segments protrudes relative to the two adjacent arc segments in a direction away from the center of the pixel opening of the at least one sub-pixel.

30. The display substrate according to claim 29, wherein The pixel opening of the at least one sub-pixel is symmetrical about an axis parallel to the second direction and / or symmetrical about an axis parallel to the first direction.

31. The display substrate according to claim 29, wherein The multiple arc segments of the pixel opening of the at least one sub-pixel are located on the same virtual circle.

32. The display substrate according to claim 31, wherein: Each of the raised line segments has a maximum distance from the virtual circle, and the maximum distance is not less than 5 μm.

33. The display substrate according to claim 29, wherein: The plurality of raised line segments are divided into a first group of raised line segments and a second group of raised line segments, the first group of raised line segments and the second group of raised line segments are symmetrical about an axis parallel to the second direction, the plurality of raised line segments in the first group of raised line segments are arranged at equal intervals, and the plurality of raised line segments in the second group of raised line segments are arranged at equal intervals, The length of the arc segment between the first group of raised line segments and the second group of raised line segments is greater than the length of the arc segment between two adjacent raised line segments in the first group of raised line segments.

34. The display substrate according to claim 29, wherein: Each of the raised line segments includes at least one of an arc segment and a straight line segment.

35. The display substrate according to claim 22, wherein: The pixel opening of the third color sub-pixel of each sub-pixel group includes multiple sub-pixel openings, the pixel defining layer includes a partition located between the multiple sub-pixel openings, the orthographic projection of each sub-pixel opening of the third color sub-pixel on the base substrate includes at least one of the multiple arc segments, and the orthographic projection of each sub-pixel opening of the third color sub-pixel on the base substrate also includes at least one straight line segment connected to the arc segment.

36. The display substrate according to claim 35, wherein: The total length of the arc segments of the sub-pixel openings of the third color sub-pixels accounts for no less than 1 / 3 of the total perimeter of the orthographic projection of the sub-pixel openings on the base substrate.

37. The display substrate according to claim 35, wherein The plurality of sub-pixel openings of the third color sub-pixel are arranged along the first direction, Each of the sub-pixel openings includes two arc segments arranged along the second direction and opposite to each other, the center of curvature of each point on the two arc segments is located between the two arc segments, the two arc segments are connected by the at least one straight line segment, and the maximum dimension of each of the sub-pixel openings along the second direction is not less than the maximum dimension along the first direction.

38. The display substrate according to claim 37, wherein: Each sub-pixel opening of the third color sub-pixel includes a concave portion, which is recessed toward the center of each sub-pixel opening, and the concave portion is at least located on one side of each sub-pixel opening close to the adjacent sub-pixel opening.

39. The display substrate according to claim 38, wherein The orthographic projection of the recessed portion on the substrate includes a bottom edge parallel to the second direction and two side edges parallel to the first direction. The length of the side edges of the recessed portion is smaller than the length of the bottom edge. The ratio of the length of the bottom edge of the recessed portion to the maximum spacing between the two arc segments along the second direction is in the range of 1 / 6-5 / 6.

40. The display substrate according to claim 38, wherein Each sub-pixel opening of the third color sub-pixel includes two concave portions arranged along the first direction, and the two concave portions are respectively located on two sides of each sub-pixel opening along the first direction.

41. The display substrate according to claim 38, wherein The two arc segments of each sub-pixel opening of the third color sub-pixel include circular arcs or elliptical arcs and have the same shape.

42. The display substrate according to claim 38, wherein The orthographic projection of the pixel opening of the first color sub-pixel on the substrate includes two arc segments arranged along the first direction and opposite to each other, and a straight line segment connecting the two arc segments, the center of curvature of each point on each of the arc segments of the pixel opening of the first color sub-pixel is located between the two arc segments, and the pixel opening of the first color sub-pixel further includes two concave portions arranged along the second direction, the two concave portions of the pixel opening of the first color sub-pixel being located on both sides of the pixel opening along the second direction. The orthographic projection of the pixel opening of the second color sub-pixel on the substrate includes two arc segments arranged along the first direction and opposite to each other, and a straight line segment connecting the two arc segments. The center of curvature of each point on each arc segment of the pixel opening of the second color sub-pixel is located between the two arc segments. The pixel opening of the second color sub-pixel also includes two concave portions arranged along the second direction. The two concave portions of the pixel opening of the second color sub-pixel are located on both sides of the pixel opening along the second direction.

43. The display substrate according to claim 42, wherein: The orthographic projection of the concave portion of the pixel opening of the first color sub-pixel on the base substrate includes a bottom side parallel to the first direction and a side side parallel to the second direction, and the concave portion of the pixel opening of the second color sub-pixel includes a bottom side parallel to the first direction and a side side parallel to the second direction. The area of ​​the orthographic projection of the pixel opening of the second color sub-pixel of each sub-pixel group on the substrate is larger than the area of ​​the orthographic projection of the pixel opening of the first color sub-pixel on the substrate, and the length of the bottom side of the concave portion of the pixel opening of the second color sub-pixel is larger than the length of the bottom side of the concave portion of the pixel opening of the first color sub-pixel.

44. The display substrate according to claim 35, wherein The multiple sub-pixel openings of the third color sub-pixel are arranged along the first direction, each sub-pixel opening includes an arc segment and a straight line segment connecting the two end points of the arc segment, and the two straight line segments of two adjacent sub-pixel openings of the third color sub-pixel along the first direction face each other.

45. The display substrate according to claim 35, wherein The minimum spacing between two adjacent sub-pixel openings of the third color sub-pixels of each sub-pixel group is a first spacing, and the minimum spacing between the pixel openings of two third color sub-pixels of two adjacent sub-pixel groups along the first direction is a second spacing, and the first spacing is less than or equal to the second spacing.

46. ​​The display substrate according to claim 44, wherein: The pixel opening of the first color sub-pixel of each of the sub-pixel groups includes two sub-pixel openings, each of the sub-pixel openings of the first color sub-pixel includes an arc segment and a straight line segment connecting two end points of the arc segment, the two straight line segments of the two adjacent sub-pixel openings of the first color sub-pixel along the first direction face each other, and / or The pixel opening of the second color sub-pixel of each sub-pixel group includes two sub-pixel openings, each sub-pixel opening of the second color sub-pixel includes an arc segment and a straight line segment connecting the two end points of the arc segment, and the two straight line segments of the two sub-pixel openings of the second color sub-pixel adjacent along the first direction face each other.

47. The display substrate according to claim 35, wherein The plurality of sub-pixel openings of the third color sub-pixel are arranged in an array along the first direction and the second direction, and each sub-pixel opening includes an arc segment and the straight line segment connecting two end points of the arc segment. The two straight line segments of the two sub-pixel openings arranged along the second direction face each other.

48. The display substrate according to claim 47, wherein: The two arc segments of the two sub-pixel openings arranged along the second direction are located on the same virtual circle.

49. The display substrate according to claim 35, wherein The orthographic projection of each sub-pixel opening of the third color sub-pixel on the substrate includes a fan shape, and the multiple sub-pixel openings include two first sub-pixel openings arranged along the first direction and two second sub-pixel openings arranged along the second direction, the vertices of the two first sub-pixel openings face each other, and the vertices of the two second sub-pixel openings face each other.

50. The display substrate according to claim 49, wherein The distance between the two first sub-pixel openings is not less than the distance between the two second sub-pixel openings.

51. The display substrate according to claim 35, wherein The arc segments of the sub-pixel openings of the third color sub-pixels are located on the same virtual circle, or the arc segments of the sub-pixel openings of the third color sub-pixels are located on the same virtual ellipse, or the diameters of the circles on which the arc segments of the sub-pixel openings of the third color sub-pixels are located are the same.

52. The display substrate according to claim 35, wherein The orthographic projection of the pixel opening of the third color sub-pixel on the substrate is larger than the orthographic projections of the pixel openings of the first color sub-pixel and the second color sub-pixel on the substrate.

53. The display substrate according to claim 35, wherein: The invention also includes a black matrix layer, wherein each of the sub-pixels further includes an avoidance opening located in the black matrix layer, and the orthographic projection of the pixel opening of each sub-pixel on the base substrate falls within the orthographic projection of the avoidance opening on the base substrate. The avoidance opening of the third color sub-pixel includes multiple sub-avoidance openings, the orthographic projection of one sub-pixel opening of the third color sub-pixel on the base substrate is located within the orthographic projection of one sub-avoidance opening on the base substrate, and the sub-pixel opening of the third color sub-pixel has the same shape as the sub-avoidance opening.

54. The display substrate according to claim 53, wherein: The pixel opening of the first color sub-pixel includes two sub-pixel openings, the orthographic projections of the two sub-pixel openings of the first color sub-pixel on the substrate are located within the orthographic projection of the same avoidance opening on the substrate, and / or The pixel opening of the second color sub-pixel includes two sub-pixel openings, and the orthographic projections of the two sub-pixel openings of the second color sub-pixel on the base substrate are located within the orthographic projection of the same avoidance opening on the base substrate.

55. The display substrate according to any one of claims 22 to 25, characterized in that: The ratio of the area of ​​the orthographic projection of the pixel opening of the third color sub-pixel of each sub-pixel group on the base substrate to the total area of ​​the orthographic projection of all pixel openings of the sub-pixel group on the base substrate is in a range of 40%-60%.

56. A pixel arrangement structure, characterized in that: include: A plurality of minimal repeating units are arranged in an array along a first direction and a second direction intersecting the first direction, Each of the minimum repeating units includes a first color sub-pixel block, a second color sub-pixel block, and a third color sub-pixel block, the first color sub-pixel block and the second color sub-pixel block are arranged along the first direction, and the first color sub-pixel block and the third color sub-pixel block are arranged along the second direction. The third color sub-pixel block includes two third color sub-pixel blocks arranged along the first direction, the two third color sub-pixel blocks include a pair of adjacent edges facing each other, and the extension direction of at least one of the pair of adjacent edges of the third color sub-pixel block intersects both the first direction and the second direction.

57. The pixel arrangement structure according to claim 56, wherein: The angle between at least one of the pair of adjacent sides of the third color sub-pixel block and the first direction is in the range of 30 degrees to 60 degrees.

58. The pixel arrangement structure according to claim 56, wherein: The shape of the third color sub-pixel sub-block includes a polygon, and the polygon includes at least one side parallel to the first direction and at least one side parallel to the second direction.

59. The pixel arrangement structure according to any one of claims 56-58, characterized in that: The first color sub-pixel block includes two first color sub-pixel sub-blocks, the two first color sub-pixel sub-blocks include a pair of adjacent sides facing each other, and an extension direction of at least one of the pair of adjacent sides of the first color sub-pixel block intersects both the first direction and the second direction. The second color sub-pixel block includes two second color sub-pixel blocks, and the two second color sub-pixel blocks include a pair of adjacent sides facing each other, and an extension direction of at least one side of the pair of adjacent sides of the second color sub-pixel block intersects both the first direction and the second direction.

60. The pixel arrangement structure according to claim 59, wherein: The pair of adjacent sides of the first color sub-pixel block, the pair of adjacent sides of the second color sub-pixel block, and the pair of adjacent sides of the third color sub-pixel block are all parallel to each other.

61. The pixel arrangement structure according to claim 60, wherein: The sum of the areas of the two third color sub-pixel sub-blocks is greater than the sum of the areas of the two first color sub-pixel sub-blocks, and greater than the sum of the areas of the two second color sub-pixel sub-blocks. The shape of the first color sub-pixel sub-block includes a triangle, the shape of the second color sub-pixel sub-block includes a triangle, and the shape of the third color sub-pixel sub-block includes a trapezoid.

62. A display device, characterized in that The display substrate comprises the display substrate according to any one of claims 1-21 or the display substrate according to any one of claims 22-55.

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