Display substrate, pixel arrangement structure, and display device

Abstract

A display substrate, a pixel arrangement structure, and a display device. The display substrate comprises a base substrate, a pixel defining layer, and a light-emitting device layer. The display substrate comprises a plurality of sub-pixels, which are divided into a plurality of sub-pixel groups. Each sub-pixel group comprises a first-color sub-pixel, a second-color sub-pixel, and a third-color sub-pixel. Pixel openings of the third-color sub-pixel of each sub-pixel group include M sub-pixel openings, and the pixel defining layer comprises a partition portion located between the M sub-pixel openings. Light-emitting functional layers of the third-color sub-pixels in two sub-pixel groups adjacent along a first direction are integrated into a shared light-emitting functional layer, and the shared light-emitting functional layer of said two sub-pixel groups comprises 2M sub-light-emitting portions located in the sub-pixel openings of the third color sub-pixels. Designing pixel openings in a partitioned manner can solve the problem of dark spots, and the shared light-emitting functional layer can increase the pixel aperture ratio.

Description

Display substrate, pixel arrangement structure and display device

[0001] This application claims priority to Chinese Patent Application No. 202411732698.6, filed on November 28, 2024, the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0002] Embodiments of this disclosure relate to a display substrate, a pixel arrangement structure, and a display device. Background Technology

[0003] Organic light-emitting diode (OLED) displays are gradually gaining more attention as a new type of flat panel display. Due to their characteristics such as active light emission, high brightness, high resolution, wide viewing angle, fast response speed, low power consumption, and flexibility, they have become a popular mainstream display product in the current market. Summary of the Invention

[0004] At least one embodiment of this disclosure provides a display substrate, comprising: a substrate; a pixel defining layer located on the substrate; and a light-emitting device layer located on the substrate. The display substrate includes a plurality of sub-pixels, the plurality of sub-pixels 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 sub-pixel group 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 second-color sub-pixels of each sub-pixel group are arranged along the first direction, and the first-color sub-pixels and third-color sub-pixels of each sub-pixel group are arranged along the second direction. Each sub-pixel includes a light-emitting device layer located on the pixel defining layer. The pixel openings in the sub-pixel group are such that the area of ​​the pixel opening of the third color sub-pixel projected onto the substrate is larger than the area of ​​the pixel opening of the first color sub-pixel and the second color sub-pixel projected onto the substrate. The pixel opening of the third color sub-pixel in each sub-pixel group includes M sub-pixel openings. The pixel defining layer includes a partition 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 two adjacent sub-pixel groups along the first direction are integrated into a shared light-emitting functional layer. The shared light-emitting functional layer of the two adjacent sub-pixel groups 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.

[0005] For example, in a display substrate provided in an embodiment of this disclosure, 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 layers of the third color sub-pixels of the first sub-pixel group and the second sub-pixel group are integrated into a common light-emitting functional layer. The minimum spacing between two adjacent sub-pixel openings of the third color sub-pixels 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. The first spacing is equal to the second spacing.

[0006] For example, in a display substrate provided in an embodiment of this disclosure, 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 layers of the third color sub-pixels of the first sub-pixel group and the second sub-pixel group are integrated into the shared light-emitting functional layer. The M sub-pixel openings of the third color sub-pixel of the first sub-pixel group include first sub-pixel openings and second sub-pixel openings 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. The area of ​​the orthographic projection of the first sub-pixel opening onto the substrate is not greater than the area of ​​the orthographic projection of the second sub-pixel opening onto the substrate.

[0007] For example, in a display substrate provided in one embodiment of this disclosure, the ratio of the area of ​​the second sub-pixel opening of the third color sub-pixel projected onto the substrate to the area of ​​the first sub-pixel opening projected onto the substrate is not less than 2.

[0008] For example, in a display substrate provided in one embodiment of this disclosure, the size of the second sub-pixel opening along the first direction is not less than the size along the second direction.

[0009] For example, in a display substrate provided in an embodiment of this disclosure, 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 being arranged along the second direction, and the two second sub-pixel openings being arranged along the second direction.

[0010] For example, in a display substrate provided in an embodiment of this disclosure, the M sub-pixel openings of the third color sub-pixel of the first sub-pixel group and the second sub-pixel group are symmetrical about an axis parallel to the second direction.

[0011] For example, in a display substrate provided in an embodiment of this disclosure, the area of ​​the pixel opening of the second color sub-pixel of each sub-pixel group projected onto the substrate is larger than the area of ​​the pixel opening of the first color sub-pixel projected onto the substrate. 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 that of the M sub-pixel openings of the third color sub-pixel.

[0012] For example, in a display substrate provided in an embodiment of this disclosure, the pixel opening of the first color sub-pixel of each sub-pixel group includes M sub-pixel openings. The M sub-pixel openings of the first color sub-pixel of each sub-pixel group are arranged in the same way 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. 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. 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.

[0013] For example, in a display substrate provided in an embodiment of this disclosure, 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-pixel. 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.

[0014] For example, in a display substrate provided in an embodiment of this disclosure, the plurality of sub-pixels are further divided into a plurality of sub-pixel columns. Each sub-pixel column includes a plurality of sub-pixels arranged along the first direction. The plurality of 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 sequentially along the second direction. The first sub-pixel column includes a first color sub-pixel and a second color sub-pixel arranged alternately along the first direction. The plurality of sub-pixels in 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 in the third sub-pixel column are the third color sub-pixels. The plurality of sub-pixels in 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.

[0015] For example, in a display substrate provided in an embodiment of this disclosure, 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. The two sub-pixel openings include a pair of adjacent sides facing each other, and the extension direction of at least one of the pair of adjacent sides intersects both the first direction and the second direction.

[0016] For example, in a display substrate provided in an embodiment of this disclosure, the shape of the M sub-pixel openings of the third color sub-pixel of each sub-pixel group includes a polygon, the polygon including at least one side parallel to the first direction and one side parallel to the second direction.

[0017] For example, in a display substrate provided in one embodiment of this disclosure, the minimum spacing between two adjacent sub-pixel openings of the third color sub-pixel in each sub-pixel group is not less than 6 μm.

[0018] For example, in a display substrate provided in an embodiment of this disclosure, the light-emitting device of each sub-pixel further includes a first electrode located on the side of the light-emitting functional layer near the substrate. The orthographic projection of the M sub-pixel openings of the third color sub-pixel on the substrate is located within the orthographic projection of the first electrode of the light-emitting device of the third color sub-pixel on the substrate. The orthographic projection of the separation portion between the M sub-pixel openings on the 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 substrate.

[0019] For example, in a display substrate provided in an embodiment of this disclosure, the light-emitting device of each sub-pixel further includes a first electrode located on the side of the light-emitting functional layer near the substrate. 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 with the M sub-pixel openings. The sub-pixel opening exposes at least a portion of one of the sub-electrode portions of the corresponding third color sub-pixel.

[0020] For example, in a display substrate provided in an embodiment of this disclosure, the ratio of the area of ​​the pixel opening of the third color sub-pixel of each sub-pixel group projected onto the substrate to the total area of ​​all pixel openings of the sub-pixel group projected onto the substrate ranges from 40% to 60%.

[0021] For example, in a display substrate provided in one embodiment of this disclosure, the value of M ranges from 2 to 10.

[0022] For example, in a display substrate provided in one embodiment of this disclosure, there is also a color filter layer located on the side of the light-emitting device layer away from the substrate, and each sub-pixel also includes a color filter pattern located on the color filter layer, wherein the pixel opening of each sub-pixel falls within the orthogonal projection of the color filter pattern on the substrate.

[0023] For example, in a display substrate provided in an embodiment of this disclosure, a black matrix layer is further included, and each sub-pixel further includes an avoidance opening located in the black matrix layer. The pixel opening of each sub-pixel falls within the orthogonal projection of the avoidance opening in the orthogonal projection of the substrate. The avoidance opening of the third color sub-pixel includes a plurality of sub-avoidance openings. The orthogonal projection of one sub-pixel opening of the third color sub-pixel in the substrate is located within the orthogonal projection of one sub-avoidance opening in the substrate. The sub-pixel opening of the third color sub-pixel and the sub-avoidance opening have the same shape.

[0024] For example, in a display substrate provided in an embodiment of this disclosure, the pixel opening of the first color sub-pixel includes two sub-pixel openings, the two sub-pixel openings of the first color sub-pixel are located in the same avoidance opening in the orthogonal projection of the substrate, and / or the pixel opening of the second color sub-pixel includes two sub-pixel openings, the two sub-pixel openings of the second color sub-pixel are located in the same avoidance opening in the orthogonal projection of the substrate.

[0025] At least one embodiment of this disclosure provides a display substrate, comprising: a substrate; a pixel defining layer located on the substrate; a light-emitting device layer located on the substrate; and a color filter layer located on the side of the light-emitting device layer away from the substrate. The display substrate includes a plurality of sub-pixels, the plurality of sub-pixels 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 sub-pixel group including 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 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 filter pattern located in the color filter layer. The orthographic projection of the pixel opening of each sub-pixel on the substrate falls within the orthographic projection of the color filter pattern on the substrate. The orthographic projection of the pixel opening of each sub-pixel on the substrate includes multiple arc segments, and the curvature center of each point on each arc segment is located on the same side of the arc segment.

[0026] For example, in a display substrate provided in an embodiment of this disclosure, the plurality of 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 and in a direction away from the first arc segment. The maximum size of the pixel opening of the third color sub-pixel along the first direction is a first size, and the maximum size along the second direction is a second size. The first size is larger than the second size.

[0027] For example, in a display substrate provided in an embodiment of this disclosure, the shape of the first arc segment includes a portion of an ellipse, the major axis of the ellipse containing the first arc segment 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 containing the first arc segment.

[0028] For example, in a display substrate provided in one embodiment of this disclosure, the shape of the second arc segment includes a portion of a circle, and the line connecting the two endpoints of the second arc segment is equal to the diameter of the circle in which the second arc segment is located; or the shape of the second arc segment includes a portion of an ellipse, the major axis of the ellipse in which 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 in which the second arc segment is located.

[0029] For example, in a display substrate provided in an embodiment of this disclosure, 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 color sub-pixels of the third sub-pixel group and the fourth sub-pixel group are the first arc segments.

[0030] For example, in a display substrate provided in an embodiment of this disclosure, 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.

[0031] For example, in a display substrate provided in an embodiment of this disclosure, the quadrilateral formed by connecting the geometric centers of the pixel openings of the third color subpixels of the first subpixel group, the second subpixel group, the third subpixel group, and the fourth subpixel group in sequence includes a pair of sides that are opposite to each other and not parallel.

[0032] For example, in a display substrate provided in an embodiment of the present disclosure, the orthogonal projection of the pixel opening of at least one of the plurality of sub-pixels on the substrate further includes a plurality of raised line segments, each of the raised line segments being located between two adjacent arc segments and connecting the two adjacent arc segments, and each of the raised line segments protruding 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.

[0033] For example, in a display substrate provided in one embodiment of this disclosure, the pixel opening of the at least one sub-pixel is symmetrical about an axis parallel to the second direction and / or about an axis parallel to the first direction.

[0034] For example, in a display substrate provided in one embodiment of this disclosure, the plurality of arc segments of the pixel opening of the at least one sub-pixel are located on the same virtual circle.

[0035] For example, in a display substrate provided in one embodiment of this disclosure, each of the raised line segments has a maximum distance from the virtual circle, and the maximum distance is not less than 5 μm.

[0036] For example, in a display substrate provided in an embodiment of this disclosure, the plurality of raised segments are divided into a first group of raised segments and a second group of raised segments. The first group of raised segments and the second group of raised segments are symmetrical about an axis parallel to the second direction. The plurality of raised segments in the first group of raised segments are arranged at equal intervals, and the plurality of raised segments in the second group of raised segments are arranged at equal intervals. The length of the arc segment between the first group of raised segments and the second group of raised segments is greater than the length of the arc segment between two adjacent raised segments in the first group of raised segments.

[0037] For example, in a display substrate provided in one embodiment of this disclosure, each of the raised segments includes at least one of an arc segment and a straight segment.

[0038] For example, in a display substrate provided in an embodiment of this disclosure, the pixel opening of the third color sub-pixel of each sub-pixel group 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 sub-pixel opening of the third color sub-pixel on the substrate includes at least one of the plurality of arc segments, and the orthographic projection of each sub-pixel opening of the third color sub-pixel on the substrate also includes at least one straight line segment connected to the arc segment.

[0039] For example, in a display substrate provided in one embodiment of this disclosure, the total length of the arc segment of each sub-pixel opening of the third color sub-pixel is not less than 1 / 3 of the total perimeter of the sub-pixel opening projected onto the substrate.

[0040] For example, in a display substrate provided in an embodiment of this disclosure, the plurality of 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 curvature centers of each point on the two arc segments are located between the two arc segments, the two arc segments are connected by the at least one straight line segment, and the maximum size of each sub-pixel opening along the second direction is not less than the maximum size along the first direction.

[0041] For example, in a display substrate provided in an embodiment of this disclosure, each of the sub-pixel openings of the third color sub-pixel includes a recessed portion, the recessed portion being recessed toward the center of each sub-pixel opening, and the recessed portion being located at least on the side of each sub-pixel opening closest to an adjacent sub-pixel opening.

[0042] For example, in a display substrate provided in an embodiment of this disclosure, the orthogonal 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 less than the length of the bottom edge, and the ratio of the length of the bottom edge of the recessed portion to the maximum distance between the two arc segments along the second direction ranges from 1 / 6 to 5 / 6.

[0043] For example, in a display substrate provided in an embodiment of this disclosure, each of the sub-pixel openings of the third color sub-pixel includes two recesses arranged along the first direction, and the two recesses are respectively located on both sides of each sub-pixel opening along the first direction.

[0044] For example, in a display substrate provided in one embodiment of this disclosure, the two arc segments of each of the sub-pixel openings of the third color sub-pixel include or are elliptical arcs and have the same shape.

[0045] For example, in a display substrate provided in an embodiment of this disclosure, 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 curvature center 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 recesses arranged along the second direction. The two recesses 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 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 curvature center 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 recesses. The two recesses of the pixel opening of the first color sub-pixel are located on both sides of the pixel opening along the second direction.

[0046] For example, in a display substrate provided in an embodiment of this disclosure, the orthographic projection of the recessed portion of the pixel opening of the first color sub-pixel on the substrate includes a bottom edge parallel to the first direction and a side edge parallel to the second direction; the recessed portion of the pixel opening of the second color sub-pixel includes a bottom edge parallel to the first direction and a side edge parallel to the second direction; the area of ​​the orthographic projection of the pixel opening of the second color sub-pixel in 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 edge of the recessed portion of the pixel opening of the second color sub-pixel is larger than the length of the bottom edge of the recessed portion of the pixel opening of the first color sub-pixel.

[0047] For example, in a display substrate provided in an embodiment of this disclosure, the plurality of 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 endpoints 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.

[0048] For example, in a display substrate provided in an embodiment of this disclosure, the minimum spacing between two adjacent sub-pixel openings of the third color sub-pixel 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, wherein the first spacing is less than or equal to the second spacing.

[0049] For example, in a display substrate provided in an embodiment of this disclosure, 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 endpoints of the arc segment, and 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 endpoints of the arc segment, and the two straight line segments of the two adjacent sub-pixel openings of the second color sub-pixel along the first direction face each other.

[0050] For example, in a display substrate provided in an embodiment of this disclosure, 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. Each sub-pixel opening includes an arc segment and a straight line segment connecting the two endpoints of the arc segment. The two straight line segments of the two sub-pixel openings arranged along the second direction face each other.

[0051] For example, in a display substrate provided in one embodiment of this disclosure, the two arc segments of the two sub-pixel openings arranged along the second direction are located in the same virtual circle.

[0052] For example, in a display substrate provided in an embodiment of this disclosure, the orthogonal projection of each of the sub-pixel openings of the third color sub-pixel on the substrate includes a fan shape, and the plurality of 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 facing each other, and the vertices of the two second sub-pixel openings facing each other.

[0053] For example, in a display substrate provided in one embodiment of this disclosure, the distance between the two first sub-pixel openings is not less than the distance between the two second sub-pixel openings.

[0054] For example, in a display substrate provided in one embodiment of this disclosure, the arc segments of the openings of each of the sub-pixels of the third color sub-pixel are located on the same virtual circle, or the arc segments of the openings of each of the sub-pixels of the third color sub-pixel are located on the same virtual ellipse, or the diameters of the circles containing the arc segments of the openings of each of the sub-pixels of the third color sub-pixel are the same.

[0055] For example, in a display substrate provided in one embodiment of this disclosure, the orthographic projection of the pixel opening of the third color sub-pixel onto the substrate is greater than the orthographic projection of the pixel opening of the first color sub-pixel and the second color sub-pixel onto the substrate.

[0056] For example, in a display substrate provided in an embodiment of this disclosure, a black matrix layer is further included, wherein each sub-pixel also includes an avoidance opening located in the black matrix layer, the pixel opening of each sub-pixel falls within the orthogonal projection of the avoidance opening in the orthogonal projection of the substrate, the avoidance opening of the third color sub-pixel includes a plurality of sub-avoidance openings, one sub-pixel opening of the third color sub-pixel is located within the orthogonal projection of one sub-avoidance opening in the orthogonal projection of the substrate, and the sub-pixel opening of the third color sub-pixel and the sub-avoidance opening have the same shape.

[0057] For example, in a display substrate provided in an embodiment of this disclosure, the pixel opening of the first color sub-pixel includes two sub-pixel openings, the two sub-pixel openings of the first color sub-pixel are located in the same avoidance opening in the orthogonal projection of the substrate, and / or the pixel opening of the second color sub-pixel includes two sub-pixel openings, the two sub-pixel openings of the second color sub-pixel are located in the same avoidance opening in the orthogonal projection of the substrate.

[0058] For example, in a display substrate provided in an embodiment of this disclosure, the ratio of the area of ​​the pixel opening of the third color sub-pixel of each sub-pixel group projected onto the substrate to the total area of ​​all pixel openings of the sub-pixel group projected onto the substrate ranges from 40% to 60%.

[0059] At least one embodiment of this disclosure provides a pixel arrangement structure, including: a plurality of minimum repeating units arranged in an array along a first direction and a second direction intersecting the first direction, wherein each minimum repeating unit 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, 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 sub-blocks arranged along the first direction, the two third color sub-pixel sub-blocks include a pair of adjacent sides facing each other, and the extension direction of at least one of the pair of adjacent sides of the third color sub-pixel block intersects both the first direction and the second direction.

[0060] For example, in a pixel arrangement structure provided in one embodiment of this disclosure, the angle between at least one of the pairs of adjacent sides of the third color sub-pixel block and the first direction ranges from 30 degrees to 60 degrees.

[0061] For example, in a pixel arrangement structure provided in an embodiment of this disclosure, the shape of the third color sub-pixel sub-block includes a polygon, the polygon including at least one side parallel to the first direction and at least one side parallel to the second direction.

[0062] For example, in a pixel arrangement structure provided in an embodiment of this disclosure, 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 sides facing each other, and the extension direction of at least one of the adjacent sides of the first color sub-pixel block intersects with 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 sides facing each other, and the extension direction of at least one of the adjacent sides of the second color sub-pixel block intersects with both the first direction and the second direction.

[0063] For example, in a pixel arrangement structure provided in an embodiment of this disclosure, 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.

[0064] For example, in a pixel arrangement structure provided in an embodiment of this disclosure, 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-blocks includes triangles, the shape of the second color sub-pixel sub-blocks includes triangles, and the shape of the third color sub-pixel sub-blocks includes trapezoids.

[0065] At least one embodiment of this disclosure provides a display device including the above-described display substrate.

[0066] According to the display substrate provided in the disclosed embodiments, the pixel aperture is designed in blocks to solve the dark spot problem, and the pixel aperture ratio is increased by using a shared light-emitting functional layer design. Attached Figure Description

[0067] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings of the embodiments will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this disclosure and are not intended to limit this disclosure.

[0068] Figure 1 is a planar schematic diagram of a traditional sRGB pixel arrangement;

[0069] Figure 2 shows a defective image of a medium-to-large product using sRGB pixel arrangement;

[0070] Figure 3 is a plan view of a display substrate provided in an embodiment of this disclosure;

[0071] Figure 4A is a schematic diagram of a cross section along section line EE in Figure 3;

[0072] Figure 4B is a schematic diagram of another cross-section along section line EE in Figure 3;

[0073] Figure 5A is another planar schematic diagram of the display substrate provided in an embodiment of this disclosure;

[0074] Figure 5B is a schematic cross-section diagram of Figure 5A along section line HH;

[0075] Figure 6 is another planar schematic diagram of the display substrate provided in the embodiment of this disclosure;

[0076] Figure 7 is another planar schematic diagram of the display substrate provided in the embodiment of this disclosure;

[0077] Figure 8 is another planar schematic diagram of the display substrate provided in the embodiments of this disclosure;

[0078] Figure 9 is a schematic diagram of the planar structure of a first electrode of a display substrate provided in an embodiment of this disclosure;

[0079] Figure 10A is a schematic diagram of another planar structure of the first electrode of the display substrate provided in an embodiment of this disclosure;

[0080] Figure 10B is a cross-sectional view of Figure 10A along the cutting line FF;

[0081] Figure 11A is a plan view of a display substrate provided in an embodiment of this disclosure;

[0082] Figure 11B is a schematic diagram of the cross section along section line GG in Figure 11A;

[0083] Figure 12 is a schematic diagram of the cross section along section line GG in Figure 11;

[0084] Figure 13 is another planar schematic diagram of the display substrate provided in an embodiment of this disclosure;

[0085] Figure 14 is another planar schematic diagram of the display substrate provided in the embodiment of this disclosure;

[0086] Figure 15 is another planar schematic diagram of the display substrate provided in the embodiment of this disclosure;

[0087] Figure 16 is another planar schematic diagram of the display substrate provided in the embodiment of this disclosure;

[0088] Figure 17 is another planar schematic diagram of the display substrate provided in the embodiment of this disclosure;

[0089] Figure 18 is another planar schematic diagram of the display substrate provided in an embodiment of this disclosure;

[0090] Figure 19 is another planar schematic diagram of the display substrate provided in an embodiment of this disclosure;

[0091] Figure 20 is another planar schematic diagram of the display substrate provided in an embodiment of this disclosure; and

[0092] Figure 21 is a schematic diagram of one embodiment provided in this disclosure. Detailed Implementation

[0093] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0094] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as “comprising” or “including” mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as “upper,” “lower,” “left,” and “right” are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0095] The components or structures in the accompanying drawings are not drawn to scale. For clarity, the dimensions of the components or structures may be exaggerated or reduced, but this should not be used to limit the scope of this disclosure. To keep the following description of the embodiments of this disclosure clear and concise, detailed descriptions of known functions and known components may be omitted.

[0096] Unless otherwise defined, the features such as "parallel," "perpendicular," and "identical" used in the embodiments of this disclosure include strictly defined cases of "parallel," "perpendicular," and "identical," as well as cases involving a certain degree of error, such as "approximately parallel," "approximately perpendicular," and "approximately identical." For example, the aforementioned "approximately" may indicate that the difference between the compared objects is within 10% or 5% of the average value of the compared objects. Unless otherwise specified in the following embodiments of this disclosure, the quantity of a component or element is implied to mean that the component or element may be one or more, or can be understood as at least one. "At least one" refers to one or more, and "more" refers to at least two. In the embodiments of this disclosure, "same-layer arrangement" refers to the relationship between multiple film layers formed from the same material after undergoing the same step (e.g., a patterning process). Here, "same-layer" does not always mean that the multiple film layers have the same thickness or that the multiple film layers have the same height in a cross-sectional view.

[0097] Figure 1 is a schematic diagram of a traditional sRGB pixel arrangement. As shown in Figure 1, R pixels and G pixels are in one column, and B pixels are in another column. The area of ​​the pixel aperture of each color pixel is affected by the lifetime of the light-emitting material of each color. Generally, the area of ​​the pixel aperture R01 of the R pixel is smaller than the area of ​​the pixel aperture G01 of the G pixel, and the area of ​​the pixel aperture G01 of the G pixel is smaller than the area of ​​the pixel aperture B01 of the B pixel. The light-emitting functional layer B02 of two adjacent B pixels is formed through two mask apertures of the mask. Due to the limitation of the minimum size of the rib between two adjacent mask apertures of the mask, there is a large unused area between the light-emitting functional layers B02 of two adjacent B pixels (see the area selected by the dashed circle in the figure).

[0098] Currently, for medium and large-sized products using sRGB pixel arrangement, the occurrence rate of dark spots is much higher than that of mobile phone products using blue diamond pixel arrangement. Through analysis of defective products, it was found that in the sRGB pixel arrangement, the larger the area of ​​the B pixel, the higher the occurrence rate of dark spots.

[0099] Figure 2 shows a defective image of a medium-to-large-sized product using an sRGB pixel arrangement. As shown in Figure 2, due to the large area of ​​the pixel opening in the B pixel and the large area of ​​the light-emitting part within the pixel opening, the gas in the planarization layer 01 at the bottom of the B pixel is not easily released, leading to corrosion of the anode 02. Further high-temperature processes such as oven baking cause Ag in the anode 02 to grow and migrate, breaking through the light-emitting material layer 03 and connecting with the cathode 04, resulting in dark spots. Since the B pixel has the largest pixel opening and light-emitting part area, the probability of dark spots appearing in the B pixel exceeds 95%.

[0100] This disclosure provides a display substrate, a pixel arrangement structure, and a display device. The display substrate includes a substrate, a pixel defining layer, and a light-emitting device layer, with the pixel defining layer and the light-emitting device layer located on the substrate. The display substrate includes a plurality of sub-pixels, each sub-pixel 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 sub-pixel group including 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 second-color sub-pixels of each sub-pixel group are arranged along the first direction, and the first-color sub-pixels and 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. The area of ​​the pixel opening of the third-color sub-pixel projected onto the substrate is larger than the area of ​​the pixel opening of the first-color sub-pixel and second-color sub-pixel projected onto the 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 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 two third-color sub-pixels of two adjacent sub-pixel groups along the first direction are integrated into a shared light-emitting functional layer. The shared light-emitting functional layer of two adjacent sub-pixel groups along the first direction includes 2M sub-light-emitting parts located in the sub-pixel openings of the two third-color sub-pixels, where M is a positive integer greater than 1.

[0101] In the display substrate provided in this embodiment, the third color sub-pixel of each sub-pixel group has the largest pixel aperture area. The pixel aperture of the third color sub-pixel is designed in blocks, so that each pixel aperture of the third color sub-pixel includes multiple sub-pixel apertures, and adjacent sub-pixel apertures are separated by a separator in the pixel defining layer. This reduces the area of ​​a single sub-pixel aperture of the third color sub-pixel, and reduces the area of ​​the sub-light-emitting portion located within the sub-pixel aperture, avoiding dark spot problems caused by excessively large areas of both the single sub-pixel aperture and the sub-light-emitting portion of the third color sub-pixel.

[0102] In the display substrate provided in this embodiment, 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 two adjacent sub-pixel groups are formed through the same mask opening in the same mask. Therefore, the shared light-emitting functional layer can utilize the area between the two third-color sub-pixels in two adjacent sub-pixel groups, and the shared light-emitting functional layer can have a larger area. Each sub-pixel group's third-color sub-pixel has 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 allows for a larger sum of the areas of the sub-light-emitting portions within the light-emitting functional layer, increasing the pixel aperture ratio of the third-color sub-pixels in each sub-pixel group. The area occupied by the separating portion due to the pixel openings can be compensated for by the shared light-emitting functional layer. This avoids the dark spot problem caused by excessively large areas of individual sub-pixel openings and sub-light-emitting portions of the third-color sub-pixels, and also improves the pixel aperture ratio of the third-color sub-pixels, thereby improving the overall display effect and display efficiency.

[0103] The display substrate, pixel arrangement structure, and display device provided in the embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.

[0104] This disclosure provides a display substrate. Figure 3 is a planar schematic diagram of the display substrate provided in this disclosure; Figure 4A is a cross-sectional schematic diagram along section line EE of Figure 3. As shown in Figures 3 and 4A, the display substrate includes a substrate 110, a pixel defining layer 120, and a light-emitting device layer, wherein the pixel defining layer 120 and the light-emitting device layer are located on the substrate 110. The display substrate includes a plurality of sub-pixels, which include 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, and each sub-pixel group 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 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 third-color sub-pixels PX03 of each sub-pixel group are arranged along the second direction Y. Each sub-pixel includes a pixel opening 121 located in the pixel defining layer 120. The area of ​​the pixel opening 121 of the third color sub-pixel PX03 projected onto the substrate 110 is larger than the area of ​​the pixel opening 121 of the first color sub-pixel PX01 and the second color sub-pixel PX02 projected onto the substrate 110. The pixel opening 121 of the third color sub-pixel PX03 in each sub-pixel group includes M sub-pixel openings 1210, and the pixel defining layer 120 includes a partition 122 located between the M sub-pixel openings 1210. Each sub-pixel also includes a light-emitting device EM located in the light-emitting device layer, and the light-emitting device EM includes a light-emitting functional layer 131.

[0105] For example, as shown in FIG4A, the light-emitting device EM further includes a first electrode 132 and a second electrode 133, wherein the first electrode 132 is located on the side of the light-emitting functional layer 131 near the 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 near the substrate 110. Each sub-pixel also 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.

[0106] As shown in Figures 3 and 4A, the light-emitting functional layers 131 of two third-color sub-pixels PX03 in two adjacent sub-pixel groups along the first direction X are integrated into a shared light-emitting functional layer 1310. The shared 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 figures schematically show that the pixel openings 121 of the third-color sub-pixel PX03 include two sub-pixel openings 1210, and the shared light-emitting functional layer 1310 includes four sub-light-emitting portions 1311 located in the sub-pixel openings 1210 of the third-color sub-pixel PX03. However, the value of M is not limited in this embodiment. For example, the value of M ranges from 2 to 10. For example, M can be 3, 4, 5, 6, 7, 8, 9, etc. The area of ​​the pixel opening 121 of the third color sub-pixel PX03 projected onto the substrate 110 is equal to the sum of the areas of the M sub-pixel openings 1210 projected onto the substrate 110. The third direction Z in the figure is perpendicular to the first direction X and the second direction Y.

[0107] In the display substrate provided in this embodiment, the third color sub-pixel of each sub-pixel group has the largest pixel aperture area. The pixel aperture of the third color sub-pixel is designed in blocks, so that each pixel aperture of the third color sub-pixel includes multiple sub-pixel apertures, and adjacent sub-pixel apertures are separated by a separator in the pixel defining layer. This reduces the area of ​​a single sub-pixel aperture of the third color sub-pixel, and reduces the area of ​​the sub-light-emitting portion located within the sub-pixel aperture, avoiding dark spot problems caused by excessively large areas of both the single sub-pixel aperture and the sub-light-emitting portion of the third color sub-pixel.

[0108] In the display substrate provided in this embodiment, third-color sub-pixels are arranged adjacently along a first direction. The light-emitting functional layers of two third-color sub-pixels in two adjacent sub-pixel groups along the first direction are integrated into a shared light-emitting functional layer. The light-emitting functional layers of two third-color sub-pixels in two adjacent sub-pixel groups are formed through the same mask opening in the same mask. Therefore, the shared light-emitting functional layer can utilize the area between the two third-color sub-pixels in two adjacent sub-pixel groups, and the shared light-emitting functional layer can have a larger area. The pixel opening of the third-color sub-pixels in each sub-pixel group includes 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 allows for a larger sum of the areas of the sub-light-emitting portions within the light-emitting functional layer, increasing the pixel aperture ratio of the third-color sub-pixels in each sub-pixel group. The area occupied by the pixel openings due to the separation portion can be compensated by the shared light-emitting functional layer. This avoids the dark spot problem caused by excessively large areas of individual sub-pixel openings and sub-light-emitting portions of the third-color sub-pixels, and also improves the pixel aperture ratio of the third-color sub-pixels, thus improving the overall display effect and display efficiency.

[0109] In some examples, as shown in Figure 3, two adjacent sub-pixel groups along the first direction X include a first sub-pixel group Gr01 and a second sub-pixel group Gr02. The light-emitting functional layer 131 of the third color sub-pixel PX03 of the first sub-pixel group Gr01 and the second sub-pixel group Gr02 is integrated into a shared light-emitting functional layer 1310. The M sub-pixel openings of the third color sub-pixel PX03 of the first sub-pixel group Gr01 include a first sub-pixel opening 1211 and a second sub-pixel opening 1212 arranged along the first direction X. By making the third color sub-pixel PX03 include two sub-pixel openings, the impact of the setting of the separator 122 on the reduction of the pixel aperture ratio can be minimized while solving the problem of dark spots, so that the display substrate has better display effect and display efficiency.

[0110] In some examples, as shown in Figure 3, the minimum spacing between two adjacent sub-pixel openings 1210 of the third color sub-pixel PX03 of the first sub-pixel group Gr01 is the first spacing D11. The minimum spacing between the sub-pixel opening 1210 of the third color sub-pixel PX03 of the first sub-pixel group Gr02 closest to the sub-pixel opening 1210 of the third color sub-pixel PX03 of the second sub-pixel group Gr01 closest to the sub-pixel opening 1210 of the first sub-pixel group Gr01 is the second spacing D12. The first spacing D11 is equal to the second spacing D12. To clearly illustrate the various structures in Figure 3, the spacings D11 and D12 are labeled at the lower right corner of the sub-pixel group; the spacings D11 and D12 of the first and second sub-pixel groups 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 shared 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 achievable by the molding process, thereby improving the pixel aperture ratio. In some examples, as shown in FIG3, the first sub-pixel opening 1211 of the third-color sub-pixel PX03 is located on the side of the second sub-pixel opening 1212 away from the second sub-pixel group Gr02, and the area of ​​the first sub-pixel opening 1211 projected onto the substrate 110 is smaller than the area of ​​the second sub-pixel opening 1212 projected onto the substrate 110. By making the area of ​​the second sub-pixel opening 1212, which is closer to the second sub-pixel group Gr02, larger, each sub-pixel group can have a better display effect, improving the overall display effect of the display substrate.

[0111] In some examples, the area of ​​the first sub-pixel opening can also be equal to the area of ​​the second sub-pixel opening. For example, the areas of multiple sub-pixel openings of the third color sub-pixel in each sub-pixel group are equal. For example, the shapes of multiple sub-pixel openings are also the same. Thus, this not only facilitates the structural design of each sub-pixel opening of the third color sub-pixel, but also improves the display uniformity of the display substrate and enhances the display effect.

[0112] In some examples, as shown in FIG3, the ratio of the area of ​​the second sub-pixel opening 1212 of the third color sub-pixel PX03 projected onto the substrate 110 to the area of ​​the first sub-pixel opening 1211 projected onto the substrate 110 is not less than 2. This increases the area of ​​the light-emitting portion located within the second sub-pixel opening 1212, increases the lifespan of the light-emitting portion, and consequently improves the lifespan of the third color sub-pixel PX03. For example, this ratio can be 2.5, 3, 3.5, 4, etc., and the present disclosure does not limit the value of this 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 separator 122 between the first sub-pixel opening 1211 and the second sub-pixel opening 1212 can be set in conjunction with the position of the signal lines on the display substrate, so that the separator overlaps with the signal lines, thereby reducing the load.

[0113] In some examples, as shown in Figure 3, the size of the second sub-pixel opening 1212 of the third color sub-pixel PX03 along the first direction X is not less than the size along the second direction Y. Therefore, the area between the third color sub-pixels of two adjacent sub-pixel groups can be fully utilized, increasing the opening area and aperture ratio of the third color sub-pixel opening, resulting in better display effects for each sub-pixel group and improving the overall display effect of the display substrate.

[0114] In some examples, as shown in FIG3, the ratio of the dimension of the second sub-pixel opening 1212 along the first direction X to the dimension along the second direction Y is not less than 1.2. This increases the area of ​​the second sub-pixel opening 1212, increases the area of ​​the light-emitting portion within the second sub-pixel opening 1212, increases the lifespan of the light-emitting portion, and consequently improves the lifespan of the third color sub-pixel PX03. For example, this ratio can be 1.5, 1.8, 2, 2.5, etc., and the numerical value of this ratio is not limited in the embodiments of this disclosure.

[0115] In some examples, as shown in Figure 3, the M sub-pixel openings of the third color sub-pixel PX03 in 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, and also improves the display uniformity of the display substrate, thus enhancing the display effect.

[0116] In some examples, as shown in Figure 3, the M sub-pixel openings of the third color sub-pixel PX03 in 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, and also improves the display uniformity of the display substrate, thus enhancing the display effect.

[0117] In some examples, as shown in Figure 3, the two sub-pixel openings 1210 of the third color sub-pixel PX03 in 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 embodiments of this disclosure do not limit the extension direction of the adjacent sides and can be designed according to factors such as display requirements.

[0118] It should be noted that, in this disclosure, 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 this disclosure, two line segments facing each other refer to two line segments that are adjacent to each other and face each other, with no other line segments between them. Vertices facing each other refer to two vertices that are adjacent to each other and face each other, with no other vertices between them.

[0119] In some examples, as shown in Figure 3, multiple first-color sub-pixels PX01, multiple second-color sub-pixels PX02, and multiple third-color sub-pixels PX03 are arranged in an array along the first direction X and the second direction Y. Multiple shared light-emitting functional layers 1310 are arranged along the first direction X. For example, multiple shared light-emitting functional layers 1310 are also arranged along the second direction Y.

[0120] Figure 4B is another cross-sectional view of Figure 3 along section line EE. As shown in Figure 4B, the display substrate also includes a color filter layer 160, which is located on the side of the light-emitting device layer away from the substrate 110. Each sub-pixel also includes a color filter pattern 161 located on the color filter layer 160, and the pixel opening 121 of each sub-pixel falls within the orthographic projection of the color filter pattern 161 onto the substrate 110. Each sub-pixel includes a color filter pattern 161. Using the color filter pattern 161 instead of a polarizer can not only improve the light extraction efficiency of the display substrate and reduce its power consumption, but also facilitate high integration and thinning of the display substrate. The display substrate using the color filter pattern 161 can also be used in foldable products.

[0121] In some examples, as shown in Figures 3 and 4B, the pixel aperture 121 of the third color sub-pixel PX03 includes a plurality of sub-pixel apertures 1210. The orthographic projection of the plurality of sub-pixel apertures 1210 of the third color sub-pixel PX03 falls within the orthographic projection of a color filter pattern 161 onto the substrate 110. This not only facilitates the fabrication of the color filter pattern but also improves the pixel aperture ratio. Of course, this disclosure does not limit the scope of the embodiments.

[0122] In some examples, as shown in Figures 3 and 4B, the display substrate further includes a black matrix layer 150, and each sub-pixel further includes a clearance opening 151 located in the black matrix layer 150, wherein the pixel opening 121 of each sub-pixel falls within the clearance opening 151 in the orthographic projection of the substrate 110.

[0123] In some examples, as shown in Figures 3 and 4B, the clearance opening 151 of the third color sub-pixel PX03 includes multiple sub-clearance openings 1510. The orthographic projection of one sub-pixel opening 1210 of the third color sub-pixel PX03 onto the substrate 110 lies within the orthographic projection of one sub-clearance opening 1510 onto the substrate 110. By having one sub-pixel opening correspond to one sub-clearance opening, the reflectivity of the non-display area between two adjacent sub-pixel openings can be reduced, thereby improving the display effect. Of course, this disclosure does not limit this aspect. For example, multiple sub-pixel openings of the third color sub-pixel can correspond to one clearance opening, and the specific design can be tailored according to optical requirements, etc.

[0124] The embodiments disclosed herein do not limit the shapes of the clearance opening and the color filter pattern. The shape of the clearance opening only needs to ensure that the orthographic projection of the pixel opening onto the substrate falls within the orthographic projection of the clearance opening onto the substrate. Similarly, the shape of the color filter pattern only needs to ensure that the orthographic projections of both the pixel opening and the clearance opening onto the substrate fall within the orthographic projection of the color filter pattern onto the substrate. The shapes of the clearance opening and the color filter pattern can be similar to or different from the pixel opening, and can be designed according to optical requirements, etc., which will not be elaborated further here.

[0125] In some examples, as shown in FIG4B, the minimum spacing D16 between the boundary of the orthographic projection of the color filter pattern 161 of each sub-pixel onto the substrate 110 and the boundary of the orthographic projection of the clearance opening 151 onto the substrate 110 is not less than 4 μm. This prevents the color filter pattern 161 from peeling off, improving product quality. For example, this minimum spacing is not less than 5 μm. The embodiments of this disclosure do not limit the size of this minimum spacing.

[0126] Figure 5A is another planar schematic diagram of the display substrate provided in an embodiment of this disclosure. As shown in Figure 5A, the area of ​​the pixel opening 121 of the second color sub-pixel PX02 in each sub-pixel group projected onto the substrate 110 is larger than the area of ​​the pixel opening 121 of the first color sub-pixel PX01 projected onto the substrate 110. The pixel opening of the second color sub-pixel PX02 is designed in blocks, 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 the separator of the pixel limiting layer 120. Thus, 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 part of the second color sub-pixel PX02 located in the sub-pixel opening 1210 is reduced, avoiding the dark spot problem caused by the excessively large area of ​​a single sub-pixel opening 1210 and the sub-light-emitting part 1311 of the second color sub-pixel PX02. The figure schematically illustrates that the pixel opening 121 of the second color sub-pixel PX02 includes two sub-pixel openings 1210. However, the number of sub-pixel openings 1210 of the second color sub-pixel PX02 is not limited in this embodiment. For example, the number of sub-pixel openings 1210 can be 2, 3, 4, etc., which will not be elaborated here. The area of ​​the pixel opening 121 of the second color sub-pixel PX02 projected onto the substrate 110 is equal to the sum of the areas of the projected sub-pixel openings 1210 onto the substrate 110. For clarity, the pixel opening 121 of the second color sub-pixel PX02 is labeled in another sub-pixel group.

[0127] In some examples, as shown in Figure 5A, the pixel opening 121 of the second color sub-pixel PX02 in each sub-pixel group includes M sub-pixel openings 1210, and the pixel opening of the third color sub-pixel PX03 in 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 in each sub-pixel group are arranged in the same way. 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. Therefore, 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 improving the display effect.

[0128] In some examples, as shown in FIG5A, the pixel opening 121 of the first color sub-pixel PX01 in each sub-pixel group includes multiple sub-pixel openings 1210, and adjacent sub-pixel openings 1210 are separated by a separator in the pixel defining layer. This reduces the area of ​​a single sub-pixel opening 1210 of the first color sub-pixel PX01 and the area of ​​the sub-light-emitting portion 1311 located within the sub-pixel opening 1210 of the first color sub-pixel PX01, avoiding the dark spot problem caused by excessively large areas 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 number of sub-pixel openings of the first color sub-pixel PX01 is not limited in this embodiment. For example, the number of sub-pixel openings can be 2, 3, 4, etc., which will not be elaborated further here. The area of ​​the pixel opening 121 of the first color sub-pixel PX01 projected onto the substrate 110 is equal to the sum of the areas of the projected sub-pixel openings 1210 onto the substrate 110.

[0129] In some examples, as shown in Figure 5A, the pixel opening 121 of the first color sub-pixel PX01 in each sub-pixel group includes M sub-pixel openings 1210. The arrangement of the M sub-pixel openings 1210 of the first color sub-pixel PX01 in each sub-pixel group is the same as that of the M sub-pixel openings 1210 of the third color sub-pixel PX03. For example, the number of sub-pixel openings 1210 of the first color sub-pixel PX01, the second color sub-pixel PX02, and the third color sub-pixel PX03 in each sub-pixel group is the same, and the arrangement of the sub-pixel openings 1210 is also the same. For example, the sub-pixel openings 1210 are all arranged along the first direction X. Therefore, it 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 improving the display effect.

[0130] In some examples, as shown in Figure 5A, the plurality of sub-pixel openings 1210 of the first color sub-pixel PX01 in each sub-pixel group include a third sub-pixel opening 1213 and a fourth sub-pixel opening 1214 arranged along the first direction X. The plurality of sub-pixel openings 1210 of the second color sub-pixel PX02 include a fifth sub-pixel opening 1215 and a sixth sub-pixel opening 1216 arranged along the first direction X. The third sub-pixel opening 1213 is located on the side of the fourth sub-pixel opening 1214 away from the second color sub-pixel PX02, and the sixth sub-pixel opening 1216 is located on the side of the fifth sub-pixel opening 1215 away from the first color sub-pixel PX01. By making both the first color sub-pixel PX01 and the second color sub-pixel PX02 include two sub-pixel openings 1210, the impact of the separation portion on the reduction of the pixel aperture ratio of the first color sub-pixel PX01 and the second color sub-pixel PX02 can be minimized while solving the problem of dark spots, resulting in better display effect and display efficiency of the display substrate.

[0131] In some examples, as shown in Figure 5, the area of ​​the third sub-pixel opening 1213 is smaller than the area of ​​the fourth sub-pixel opening 1214. For example, the area of ​​the sixth sub-pixel opening 1216 is smaller than the area of ​​the fifth sub-pixel opening 1215. By making the area of ​​the fourth sub-pixel opening 1214, which is closer to the second color sub-pixel PX02, larger, and the area of ​​the fifth sub-pixel opening 1215, which is closer to the first color sub-pixel PX01, larger, each sub-pixel group can have a better display effect, improving the overall display effect of the display substrate.

[0132] In some examples, the area of ​​the third sub-pixel opening can be equal to the area of ​​the fourth sub-pixel opening. For example, the area of ​​the sixth sub-pixel opening can be equal to the area of ​​the fifth sub-pixel opening. For example, the areas and shapes of the multiple sub-pixel openings of the first color sub-pixel in each sub-pixel group are equal. For example, the areas and shapes of the multiple sub-pixel openings of the second color sub-pixel in each sub-pixel group are equal. Therefore, this not only facilitates the structural design of the sub-pixel openings of the first and second color sub-pixels, but also improves the display uniformity of the display substrate and enhances the display effect.

[0133] In some examples, as shown in FIG5A, the two sub-pixel openings 1210 of the second color sub-pixel PX02 of each sub-pixel group include a pair of adjacent sides facing each other, which are parallel to the second direction Y. The embodiments of this disclosure do not limit the extension direction of the adjacent sides and can be designed according to 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 sides facing each other, which are parallel to the second direction Y.

[0134] In some examples, as shown in Figure 5A, the minimum spacing between two adjacent sub-pixel apertures 1210 of the second color sub-pixel PX02 in each sub-pixel group Gr is a third spacing D13. The minimum spacing between the pixel apertures 121 of the first color sub-pixel PX01 and the second color sub-pixel PX02 in each sub-pixel group Gr is a fourth spacing D14. The third spacing D13 is smaller than the fourth spacing D14. Therefore, not only can the pixel aperture ratio of the second color sub-pixel PX02 be increased, but the lifespan of the first and second color sub-pixels can also be guaranteed.

[0135] In some examples, as shown in Figure 5A, the minimum spacing between the apertures 1210 of two adjacent sub-pixels of the first color sub-pixel PX01 in each sub-pixel group Gr is the fifth spacing D15. The fifth spacing D15 is smaller than the fourth spacing D14. Therefore, not only can the pixel aperture ratio of the first color sub-pixel PX01 be increased, but the lifespan of both the first and second color sub-pixels can also be guaranteed.

[0136] In some examples, as shown in Figure 5, the third pitch D13 is equal to the fifth pitch D15, which can improve the display effect. Furthermore, the third pitch D13 and the fifth pitch D15 can be set to the minimum size achievable by the molding process, thereby further improving the pixel aperture ratio.

[0137] In some examples, as shown in Figure 5A, the first spacing D11, the second spacing D12, the third spacing D13, and the fifth spacing D15 are equal, which can improve the display effect.

[0138] In some examples, as shown in Figure 5A, the value of the fourth spacing D14 ranges from 18μm to 26μm. For example, the fourth spacing D14 can be 20μm, 24μm, etc., which will not be elaborated further here.

[0139] Figure 5B is a cross-sectional schematic diagram along section line HH of Figure 5A. As shown in Figures 5A and 5B, the pixel aperture 121 of the first color sub-pixel PX01 includes two sub-pixel apertures 1210. The orthographic projections of the two sub-pixel apertures 1210 of the first color sub-pixel PX01 onto the substrate 110 are located within the orthographic projection of the same clearance aperture 151 onto the substrate. Therefore, the aperture area of ​​each sub-pixel aperture 1210 of the first color sub-pixel PX01 can be increased, improving the aperture ratio. Furthermore, the reflectivity of the area where the sub-pixel apertures are located can be increased, improving the reflection effect and mitigating color shift issues at large viewing angles.

[0140] In some examples, as shown in Figures 5A and 5B, the pixel opening 121 of the second color sub-pixel PX02 includes two sub-pixel openings 1210, and the orthographic projections of the two sub-pixel openings 1210 of the second color sub-pixel PX02 onto the substrate lie within the same clearance opening 151, which is within the orthographic projection of the substrate 110. Of course, this disclosure does not limit the scope of the embodiments. For example, one sub-pixel opening of the second color sub-pixel can correspond to one clearance opening. For example, one sub-pixel opening of the first color sub-pixel can correspond to one clearance opening; the specific design can be tailored to optical requirements, etc.

[0141] Figure 6 is another planar schematic diagram of the display substrate provided in this embodiment. As shown in Figure 6, the plurality of 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. Therefore, the area of ​​each sub-pixel opening and each sub-light-emitting part 1311 of the third color sub-pixel PX03 can be smaller, and the dark spot problem can be better avoided.

[0142] In some examples, as shown in Figure 6, the multiple sub-pixel openings 1210 of the first color sub-pixel PX01 in each sub-pixel group include 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. This allows for a smaller area of ​​each sub-pixel opening of the first color sub-pixel PX01 and each sub-light-emitting part 1311, better avoiding dark spot problems.

[0143] In some examples, as shown in Figure 6, the multiple sub-pixel openings 1210 of the second color sub-pixel PX02 in each sub-pixel group include 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 also arranged along the second direction Y. This allows for a smaller area of ​​each sub-pixel opening and each sub-light-emitting part 1311 of the second color sub-pixel PX02, better avoiding dark spot problems.

[0144] In some examples, as shown in Figure 6, the number of sub-pixel openings 1210 in each sub-pixel group—the number of sub-pixel openings 1210 in the first color sub-pixel PX01, the number of sub-pixel openings 1210 in the second color sub-pixel PX02, and the number of sub-pixel openings 1210 in the third color sub-pixel PX03—is equal. For example, the arrangement is also the same. For instance, the arrangement follows the first direction X and the second direction Y. Therefore, while solving the dark spot problem, the display uniformity of each sub-pixel group and the display substrate can be improved, thus enhancing the display effect.

[0145] In some examples, as shown in Figure 6, multiple first-color sub-pixels PX01, multiple second-color sub-pixels PX02, and multiple third-color sub-pixels PX03 are arranged in an array along the first direction X and the second direction Y. Multiple shared light-emitting functional layers 1310 are arranged along the first direction X. For example, multiple shared light-emitting functional layers 1310 are also arranged along the second direction Y.

[0146] Figure 7 is another planar schematic diagram of the display substrate provided in an embodiment of this disclosure. As shown in Figure 7, two adjacent sub-pixel groups along the first direction X include a first sub-pixel group Gr01 and a 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 layer 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 is 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 diagram schematically shows that the third color sub-pixel PX03 of each sub-pixel group includes 4 sub-pixel openings 1210, each sub-pixel opening 1210 includes a sub-light-emitting part 1311, and the shared light-emitting functional layer 1310 includes 16 sub-light-emitting parts 1311.

[0147] 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 through the same mask opening of the same mask. Thus, the shared light-emitting functional layer 1310 can utilize the area between the third color sub-pixels PX03 of two adjacent sub-pixel groups, and the shared light-emitting functional layer 1310 can have a larger area. The pixel opening of the third color sub-pixel PX03 of each sub-pixel group includes 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 allows the sum of the areas of the sub-light-emitting portions 1311 located within the light-emitting functional layer 131 to be larger, increasing the pixel aperture ratio of the third color sub-pixels PX03 of each sub-pixel group. In this example, the pixel aperture of the third color sub-pixel PX03 of each sub-pixel includes four sub-pixel apertures separated by the separator 122. The area occupied by the pixel apertures due to the setting of the separator 122 can be compensated by the shared light-emitting functional layer 1310. Thus, the problem of dark spots caused by the large area of ​​the individual sub-pixel aperture of the third color sub-pixel PX03 and the sub-light-emitting part 1311 is avoided. Moreover, the pixel aperture ratio of the third color sub-pixel PX03 can be improved, thereby improving the overall display effect and display efficiency.

[0148] In some examples, as shown in Figure 7, the M sub-pixel openings of the third color sub-pixel PX03 in 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.

[0149] In some examples, as shown in Figure 7, the same column along the first direction X may simultaneously include a first color sub-pixel PX01, a second color sub-pixel PX02, and a third color sub-pixel PX03. The same column along the first direction X may simultaneously 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.

[0150] In some examples, as shown in Figure 7, the multiple subpixels are further divided into multiple subpixel columns R0, each subpixel column R0 including multiple subpixels arranged along the first direction X. The multiple subpixel columns R0 include a first subpixel column R01, a second subpixel column R02, a third subpixel column R03, and a fourth subpixel column R04 arranged sequentially along the second direction Y. The first sub-pixel column R01 includes a first color sub-pixel PX01 and a second color sub-pixel PX02 arranged alternately along the first direction X. Multiple sub-pixels of the second sub-pixel column R02 are arranged 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, repeating along the first direction X. The sub-pixels of the third sub-pixel column R03 are third color sub-pixels PX03. Multiple sub-pixels of the fourth sub-pixel column R04 are arranged 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, repeating along the first direction X. By making both the second sub-pixel column R02 and the fourth sub-pixel column R04 include first color sub-pixels PX01, second color sub-pixels PX02, and third color sub-pixels PX03, the display effect of the display substrate can be changed. For example, edge color shift can be improved.

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

[0152] In some examples, as shown in Figure 7, the first color sub-pixel PX01 of the fourth sub-pixel column R04 and the third color sub-pixel PX03 of the second sub-pixel column R02 are located in the same row. For example, a virtual line parallel to the second direction Y and passing through the first color sub-pixel PX01 of the fourth sub-pixel column R04 also passes through the third color sub-pixel PX03 of the second sub-pixel column R02. For example, the second color sub-pixel PX02 of the fourth sub-pixel column R04 and the third color sub-pixel PX03 of the second sub-pixel column R02 are located in the same row. For example, a virtual line parallel to the second direction Y and passing through the second color sub-pixel PX02 of the fourth sub-pixel column R04 also passes through the third color sub-pixel PX03 of the second sub-pixel column R02.

[0153] Figure 8 is another planar schematic diagram of the display substrate provided in an embodiment of this disclosure. As shown in Figure 8, 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. The two sub-pixel openings 1210 include a pair of adjacent sides L11 facing each other. At least one of the adjacent sides L11 extends in a direction that intersects both the first direction X and the second direction Y. The figure schematically shows that the extension direction of side L11 is parallel to the fourth direction P, which is located in the plane containing the first direction X and the second direction Y, and intersects both the first direction X and the second direction Y. The figure schematically shows that two adjacent sides L11 are parallel to each other and both extend along the fourth direction P. This embodiment of the disclosure does not limit the extension direction of side L11 and can be designed according to display requirements and other factors. In this example, by making the extension direction of side L11 intersect both the first direction X and the second direction Y, the pixel aperture ratio of each sub-pixel group can be adjusted or increased. On the other hand, the display effect can be improved. For example, under the same area conditions, the size of each sub-pixel opening 1210 of the third color sub-pixel PX03 shown in Figure 8 is smaller in the fifth direction Q, which can improve the edge jaggedness. The fifth direction P is located in the plane containing the first direction X and the second direction Y, and intersects with the first direction X, the second direction Y and the fourth direction P.

[0154] In some examples, as shown in Figure 8, the angle between the extension direction of at least one of a pair of adjacent sides L11 facing each other and the first direction X ranges from 30 degrees to 60 degrees. This achieves a better display effect while maintaining the aperture ratio. That is, the angle between the fourth direction P and the first direction X ranges from 30 degrees to 60 degrees. For example, this angle can be 35 degrees, 40 degrees, 45 degrees, 50 degrees, etc., which will not be elaborated here. The figure schematically shows an angle of 45 degrees between the fourth direction P and the first direction X. Of course, this embodiment does not limit this angle and can be designed according to display requirements and other factors.

[0155] 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 and the fourth direction P form an angle. For example, the plurality of signal lines extending along the fourth direction P include gate lines, reset signals, light emission control lines, etc. 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 arranged in an array along the first and second directions, and the plurality of signal lines of the display substrate extend along the fourth or fifth direction.

[0156] In some examples, as shown in Figure 8, the third color sub-pixel PX03 includes two sub-pixel openings 1210. These two openings are arranged along a first direction X. The orthographic projection of the two openings 1210 onto the substrate 110 is a right-angled trapezoid, with the hypotenuses facing each other and the right-angled sides parallel to the first and second directions, respectively. For example, the two sub-pixel openings 1210 of the third color sub-pixel PX03 may be a first sub-pixel opening 1211 and a second sub-pixel opening 1212. In this embodiment, the first sub-pixel opening 1211 and the second sub-pixel opening 1212 may possess the corresponding technical features and effects of the first and second sub-pixel openings described in the preceding embodiments, which will not be elaborated upon here.

[0157] In some examples, as shown in Figure 8, the second color sub-pixel PX02 of each sub-pixel group includes multiple sub-pixel openings 1210. For example, the second color sub-pixel PX02 includes M sub-pixel openings 1210, including two sub-pixel openings 1210 arranged along the first direction X. The two sub-pixel openings 1210 include a pair of adjacent edges L12 facing each other, and the edges L12 intersect both the first direction X and the second direction Y. The embodiments of this disclosure do not limit the extension direction of the edges L12, and can be designed according to display requirements and other factors.

[0158] In some examples, as shown in Figure 8, the first color sub-pixel PX01 of each sub-pixel group includes multiple sub-pixel openings 1210. For example, the first color sub-pixel PX01 includes M sub-pixel openings 1210, and the M sub-pixel openings 1210 of the first color sub-pixel PX01 include two sub-pixel openings 1210 arranged along the first direction X. The two sub-pixel 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 embodiments of this disclosure do not limit the extension direction of the edges L13, and can be designed according to display requirements and other factors.

[0159] In some examples, as shown in Figure 8, the edges L11 of the third color sub-pixel PX03, L12 of the second color sub-pixel PX02, and L13 of the first color sub-pixel PX01 in each sub-pixel group are parallel. This improves the display uniformity of each sub-pixel group and the display substrate, thereby enhancing the display effect.

[0160] In some examples, as shown in Figure 8, the second color sub-pixel PX02 includes two sub-pixel openings 1210. The orthographic projection of the two sub-pixel openings 1210 onto the substrate 110 is a right-angled triangle, with the hypotenuses of the two right-angled triangles facing each other, and the two legs of the right-angled triangles being parallel to a first direction and a second direction, respectively. For example, the two sub-pixel openings 1210 of the second color sub-pixel PX02 are a fifth sub-pixel opening 1215 and a sixth sub-pixel opening 1216. The fifth sub-pixel opening 1215 and the sixth sub-pixel opening 1216 in this embodiment may have the corresponding technical features and effects of the fifth and sixth sub-pixel openings in the previous embodiments, which will not be elaborated here.

[0161] In some examples, as shown in Figure 8, the first color sub-pixel PX01 includes two sub-pixel openings 1210. The orthographic projection of the two sub-pixel openings 1210 onto the substrate 110 is a right-angled triangle, with the hypotenuses of the two right-angled triangles facing each other, and the two legs of the right-angled triangles being parallel to a first direction and a second direction, respectively. For example, the two sub-pixel openings 1210 of the first color sub-pixel PX01 may be 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 may have the corresponding technical features and effects of the third and fourth sub-pixel openings in the previous embodiments, which will not be elaborated here.

[0162] Figure 8 schematically 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, the embodiments disclosed herein are not limited to this. 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 may include multiple sub-pixel openings. For example, only the third color sub-pixel and the second color sub-pixel may include multiple sub-pixel openings. Further details will not be elaborated here.

[0163] In some examples, as shown in Figures 3 to 8, the shape of the pixel opening 121 of each sub-pixel projected onto the substrate 110 includes polygons such as triangles, rectangles, or pentagons. For example, the polygons can be partially or completely chamfered, thereby improving the vapor deposition shadow formed by the mask during the vapor deposition process. The embodiments of this disclosure do not limit the size of the chamfer; rounded corners or right angles can be used.

[0164] In some examples, as shown in Figures 3 to 8, the shape of the pixel opening 121 of each sub-pixel projected onto the substrate 110 includes one side parallel to the first direction X and one 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.

[0165] In some examples, the minimum spacing between two adjacent sub-pixel openings of the first color sub-pixel PX01 in each sub-pixel group is not less than 6μm. For example, the minimum spacing between two adjacent sub-pixel openings of the second color sub-pixel PX02 is not less than 6μm. For example, the minimum spacing between two adjacent sub-pixel openings of the third color sub-pixel PX03 is not less than 6μm. This satisfies the forming process requirements for the openings of adjacent sub-pixels in each sub-pixel group, ensuring the dimensional accuracy and quality of the product. For example, the aforementioned minimum spacing can be 7μm, 8μm, or 10μm, which will not be elaborated further here.

[0166] This disclosure also provides a pixel arrangement structure. The pixel arrangement structure includes a plurality of minimum repeating units, which are arranged in an array along a first direction and a second direction intersecting the first direction. Each minimum repeating unit includes a first color sub-pixel block, a second color sub-pixel block, and a third color sub-pixel block. The first and second color sub-pixel blocks are arranged along the first direction, and the first and third color sub-pixel blocks are arranged along the second direction. The third color sub-pixel block includes two third color sub-pixel sub-blocks arranged along the first direction. The two third color sub-pixel sub-blocks include a pair of adjacent edges facing each other, and at least one of the adjacent edges of the third color sub-pixel block extends in a direction that intersects both the first and second directions.

[0167] In the pixel arrangement structure provided in this disclosure, 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, thus avoiding pixel dark spot problems in the display substrate using this pixel arrangement structure. For details, please refer to the corresponding description of the display substrate in this application; it will not be repeated here. By ensuring that at least one of the extending directions of a pair of adjacent sides of the two third color sub-pixel sub-blocks intersects 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, thereby increasing or adjusting the pixel aperture area and pixel aperture ratio of the display substrate using this pixel arrangement structure. On the other hand, the display effect of the display substrate using this pixel arrangement structure can also be improved. For example, it can improve the edge jaggedness.

[0168] The display substrate shown in Figure 8 employs the pixel arrangement structure provided in this embodiment. As shown in Figure 8, 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 block 181 and the second color sub-pixel block 182 are arranged along the first direction X, and the first color sub-pixel block 181 and the third color sub-pixel block 183 are arranged along the second direction Y. The third color sub-pixel block 183 includes two third color sub-pixel sub-blocks 1810 arranged along the first direction X. The two third color sub-pixel sub-blocks 1810 include a pair of adjacent sides L11 facing each other. At least one of the pair of adjacent sides L11 of the third color sub-pixel block 181 extends in a direction that intersects both the first direction X and the second direction Y. The diagram schematically shows that the extension direction of edge L11 is parallel to the fourth direction P. The diagram schematically shows that two adjacent edges L11 are parallel to each other and both extend along the fourth direction P.

[0169] In the pixel arrangement structure provided in this embodiment, 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, thus avoiding pixel dark spot problems in the display substrate using this pixel arrangement structure. For details, please refer to the corresponding description of the display substrate in this application; further details will not be repeated here. By making at least one of the adjacent edges L11 of the two third color sub-pixel blocks 1830 intersect both the first and second directions in its extending direction, on the one hand, the area of ​​the third color sub-pixel block can be increased or adjusted, thereby increasing or adjusting the pixel aperture area and pixel aperture ratio of the display substrate using this pixel arrangement structure. On the other hand, the display effect of the display substrate using this pixel arrangement structure can also be improved. For example, under the same area conditions, the third color sub-pixel block 1830 shown in FIG. 8 has a smaller size in the fifth direction Q, which can improve the edge jaggedness.

[0170] In some examples, as shown in Figure 8, the angle between at least one edge L11 of a pair of adjacent edges L11 of the third color sub-pixel block 183 and the first direction X ranges from 30 degrees to 60 degrees. This ensures both the area of ​​the two third color sub-pixel blocks 1830 and a better display effect for the display substrate using this pixel arrangement structure. For example, the angle can be 35 degrees, 40 degrees, 45 degrees, 50 degrees, etc., which will not be elaborated further here. The figure schematically shows that the angle between the fourth direction P and the first direction X is 45 degrees.

[0171] In some examples, as shown in Figure 8, the shape of the third color sub-pixel sub-block 183 includes a polygon, which 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 minimum 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.

[0172] In some examples, as shown in Figure 8, the first color sub-pixel block 181 includes two first color sub-pixel blocks 1810. Each of the two first color sub-pixel blocks 1810 includes a pair of adjacent edges L13 facing each other. At least one of the adjacent edges 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 configuration are described in the relevant section on the third color sub-pixel block, and will not be elaborated upon here.

[0173] In some examples, as shown in Figure 8, the second color sub-pixel block 182 includes two second color sub-pixel blocks 1820. Each of the two second color sub-pixel blocks 1820 includes a pair of adjacent edges L12 facing each other. At least one of the adjacent edges 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 configuration are described in the relevant section on the third color sub-pixel block, and will not be elaborated upon here.

[0174] In some examples, as shown in Figure 8, a pair of adjacent edges L13 of the first color sub-pixel block 181, a pair of adjacent edges L12 of the second color sub-pixel block 182, and a pair of adjacent edges L11 of the third color sub-pixel block 183 are all parallel to each other. This allows the display substrate employing this pixel arrangement structure to have a better display effect.

[0175] In some examples, as shown in Figure 8, the sum of the areas of two third-color sub-pixel sub-blocks is greater than the sum of the areas of two first-color sub-pixel sub-blocks, and also greater than the sum of the areas of two second-color sub-pixel sub-blocks. For example, the shape of the first-color sub-pixel sub-block 1810 includes a triangle. For example, the adjacent sides L13 of the two first-color sub-pixel sub-blocks 1810 facing each other are the longest sides of the triangle. For example, the shape of the first-color sub-pixel sub-block 1810 includes a right-angled triangle. For example, the shape of the second-color sub-pixel sub-block 1820 includes a triangle. For example, the adjacent sides L12 of the two second-color sub-pixel sub-blocks 1820 facing each other are the longest sides of the triangle. For example, the shape of the second-color sub-pixel sub-block 1820 includes a right-angled triangle. For example, the shape of the third-color sub-pixel sub-block 1830 includes a trapezoid. For example, the adjacent sides L11 of the two third-color sub-pixel sub-blocks 1830 facing each other are the hypotenuse of the trapezoid. For example, the shape of the third-color sub-pixel sub-block 1830 includes a right-angled trapezoid. This setup ensures the area of ​​each color sub-pixel and also improves the display effect of the display substrate.

[0176] Figure 9 is a schematic planar structure of a first electrode of a display substrate provided in an embodiment of this disclosure. As shown in Figure 9, the light-emitting device of each sub-pixel also includes a first electrode 132. The orthographic projection of the M sub-pixel openings 1210 of the third color sub-pixel PX03 onto the substrate 110 lies within the orthographic projection of the first electrode 132 of the light-emitting device of the third color sub-pixel PX03 onto the substrate 110. For example, the orthographic projection of the partition portion 122 between the sub-pixel openings 1210 of the third color sub-pixel PX03 onto the substrate 110 at least partially overlaps with the orthographic projection of the first electrode 132 of the light-emitting device of the third color sub-pixel PX03 onto the substrate 110.

[0177] In some examples, as shown in FIG9, the pixel aperture of the second color sub-pixel PX02 includes a plurality of sub-pixel apertures 1210, and the orthographic projection of the plurality of sub-pixel apertures 1210 onto the substrate 110 lies within the orthographic projection of the first electrode 132 of the second color sub-pixel PX02 onto the substrate 110. For example, the orthographic projection of the partition portion 122 between the sub-pixel apertures 1210 of the second color sub-pixel PX02 onto the substrate 110 at least partially overlaps with the orthographic projection of the first electrode 132 of the light-emitting device of the second color sub-pixel PX02 onto the substrate 110. This simplifies the manufacturing process and improves production efficiency.

[0178] In some examples, as shown in FIG9, the pixel aperture of the first color sub-pixel PX01 includes a plurality of sub-pixel apertures 1210, and the orthographic projection of the plurality of sub-pixel apertures 1210 onto the substrate 110 lies within the orthographic projection of the first electrode 132 of the first color sub-pixel PX01 onto the substrate 110. For example, the orthographic projection of the partition portion 122 between the sub-pixel apertures 1210 of the first color sub-pixel PX01 onto the substrate 110 at least partially overlaps with the orthographic projection of the first electrode 132 of the light-emitting device of the first color sub-pixel PX01 onto the substrate 110. This simplifies the manufacturing process and improves production efficiency. The embodiments of this disclosure do not limit the shape of the orthographic projection of the first electrode 132 of each color sub-pixel onto the substrate 110.

[0179] In some examples, as shown in FIG9, multiple sub-pixel openings 1210 of the third color sub-pixel PX03 of each sub-pixel group are arranged along a first direction X, and a partition 122 is included between the multiple sub-pixel openings 1210. The display substrate includes multiple signal lines extending along a second direction Y intersecting the first direction X. For example, the multiple signal lines extending along the second direction Y include multiple power lines Vdd, multiple data lines Date, and multiple initialization signal lines Vinit.

[0180] In some examples, as shown in FIG9, the orthographic projection of portions of multiple data lines Date on the substrate 110 overlaps with the orthographic projection of the partition 122 between the multiple sub-pixel openings 1210 of the third color sub-pixel PX03 on the substrate 110. For example, the orthographic projection of portions of multiple initialization signal lines Vinit on the substrate 110 overlaps with the orthographic projection of the partition 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 portions of the signal lines of the multiple signal lines extending along the second direction Y can be disposed between the multiple sub-pixel openings 1210, thereby reducing the load.

[0181] In some examples, as shown in FIG9, the plurality of sub-pixel openings 1210 of the second color sub-pixel PX02 of each sub-pixel group are arranged along the first direction X, and the plurality of sub-pixel openings 1210 include a partition 122. The orthographic projection of the portions of the plurality of power lines Vdd and the portions of the plurality of data lines Date on the substrate 110 overlaps with the orthographic projection of the partition 122 between the plurality of sub-pixel openings 1210 of the second color sub-pixel PX02 on the substrate 110.

[0182] In some examples, as shown in FIG9, the orthographic projection of at least one of the plurality of sub-pixel openings 1210 of the third color sub-pixel PX03 onto the substrate 110 overlaps with the orthographic projection of portions of the plurality of power lines Vdd onto the substrate 110. For example, the orthographic projection of each of the plurality of sub-pixel openings 1210 of the third color sub-pixel PX03 onto the substrate 110 overlaps with the orthographic projection of the power lines Vdd onto the substrate 110. For example, the orthographic projection of at least one of the plurality of sub-pixel openings 1210 of the second color sub-pixel PX02 onto the substrate 110 overlaps with the orthographic projection of the power lines Vdd onto the substrate 110. For example, the orthographic projection of at least one of the plurality of sub-pixel openings 1210 of the first color sub-pixel PX01 onto the substrate 110 overlaps with the orthographic projection of the power lines Vdd onto the substrate 110.

[0183] Figure 10A is a planar structural schematic diagram of another first electrode of the display substrate provided in this embodiment; Figure 10B is a cross-sectional schematic diagram of Figure 10A along the cutting line FF. As shown in Figures 10A and 10B, 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, and 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, and the sub-pixel opening 1210 of the third color sub-pixel PX03 exposes at least a portion of one sub-electrode portion 1321 of the corresponding third color sub-pixel PX03. By designing the anode 132 of the light-emitting device of the third color sub-pixel PX03 into blocks, it is possible to easily repair when a certain point or position of the third color sub-pixel PX03 is displayed poorly, thereby improving the repair rate of defective points.

[0184] In some examples, as shown in FIG10A, the pixel aperture of the second color sub-pixel PX02 includes a plurality of sub-pixel apertures 1210, and the first electrode 132 of the light-emitting device of the second color sub-pixel PX02 also includes a plurality of sub-electrode portions 1321 arranged at intervals from each other and a connecting portion 1322 connecting the plurality of sub-electrode portions 1321 to each other. The plurality of sub-electrode portions 1321 of the second color sub-pixel PX02 correspond one-to-one with the plurality of sub-pixel apertures 1210, and the sub-pixel aperture 1210 of the second color sub-pixel PX02 exposes at least a portion of one sub-electrode portion 1321 of the corresponding second color sub-pixel PX02. Therefore, the repair rate of defective pixels can be improved.

[0185] In some examples, as shown in FIG10A, 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 each other and a connecting portion 1322 connecting the plurality of sub-electrode portions 1321 to each other. The plurality of sub-electrode portions 1321 of the first color sub-pixel PX01 correspond one-to-one with a plurality of sub-pixel openings 1210, and the sub-pixel opening 1210 of the first color sub-pixel PX01 exposes at least a portion of one sub-electrode portion 1321 of the corresponding first color sub-pixel PX01. Therefore, the repair rate of defective pixels can be improved.

[0186] In some examples, as shown in FIG10A, multiple sub-pixel openings 1210 of the third color sub-pixel PX03 of each sub-pixel group are arranged along a first direction X, and a partition 122 is included between the multiple sub-pixel openings 1210. The display substrate includes multiple signal lines extending along a second direction Y intersecting the first direction X. For example, the multiple signal lines extending along the second direction Y include multiple power lines Vdd, multiple data lines Date, and multiple initialization signal lines Vinit.

[0187] In some examples, as shown in FIG10A, the orthographic projection of portions of the multiple data lines Date onto the substrate 110 does not overlap with at least one of the multiple sub-electrode portions 1321 of the third color sub-pixel PX03. For example, the orthographic projection of portions of the multiple data lines Date onto the substrate 110 does not overlap with each of the multiple sub-electrode portions 1321 of the third color sub-pixel PX03. This reduces the load.

[0188] In some examples, as shown in FIG10A, portions of multiple data lines Date overlap with the connection portion 1322 of the third color sub-pixel PX03 in the orthogonal projection of the substrate 110. Therefore, the data lines Date can be positioned between two adjacent sub-electrode portions 1321, reducing the load.

[0189] In some examples, as shown in FIG10A, the plurality of sub-pixel openings 1210 of the second color sub-pixel PX02 of each sub-pixel group are arranged along the first direction X, and the plurality of sub-pixel openings 1210 include a partition 122 between them. For example, the orthographic projection of portions of the plurality of power lines Vdd and portions of the plurality of data lines Date on the substrate 110 overlaps with the orthographic projection of the connection portion 1322 of the second color sub-pixel PX02 on the substrate 110. Thus, portions of the plurality of signal lines extending along the second direction Y can be placed between two adjacent sub-electrode portions 1321 as much as possible, thereby reducing the load.

[0190] In some examples, the first color is red, the second color is green, and the third color is blue.

[0191] In some examples, the area of ​​the pixel aperture of the third color subpixel in each subpixel group projected onto the substrate is not less than 2000 μm. 2 For example, the sum of the areas of all sub-pixel openings of the third color sub-pixel in each sub-pixel group projected onto the substrate is not less than 2000 μm. 2 For example, the area mentioned above can be greater than 3000 μm. 2 The specific value of this area is not limited in the embodiments disclosed herein. For example, the display substrate of this disclosure is a medium-to-large-sized display substrate. Compared with small-sized display substrates used in mobile phones, watches, etc., the pixel aperture area of ​​the third color sub-pixel of a medium-to-large-sized display substrate is larger, and the probability of dark spots is greater. By adopting the above-described display substrate technical solution of this disclosure, the dark spot problem can be effectively solved, and the display effect and display efficiency can be improved.

[0192] In some examples, the ratio of the area of ​​the pixel opening of the third color subpixel in each subpixel group projected onto the substrate to the total area of ​​all pixel openings in that subpixel group projected onto the substrate ranges from 40% to 60%. For example, this ratio can be 45%, 50%, or 55%. Further details will not be provided here.

[0193] Figure 11A is a planar schematic diagram of a display substrate provided in an embodiment of this disclosure; Figure 11B is a cross-sectional schematic diagram of Figure 11A along section line GG. As shown in Figures 11A and 11B, the display substrate includes a 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 substrate 210, and the color filter layer is located on the side of the light-emitting device layer away from the substrate 210. The display substrate includes a plurality of sub-pixels, which include 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, and each sub-pixel group Gr includes one first color sub-pixel PX01, one second color sub-pixel PX02, and one third color sub-pixel PX03. Multiple 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-pixel PX01 and the second color sub-pixel PX02 of each sub-pixel group Gr are arranged along the first direction X, and the first color sub-pixel PX01 and the third color sub-pixel 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 onto the substrate 210 falls within the orthographic projection of the color filter pattern 251 onto the substrate 210. The orthographic projection of the pixel opening 221 of each sub-pixel onto the substrate 210 includes multiple arc segments 223, and the curvature centers of each point on each arc segment 223 are located on the same side of the arc segment 223.

[0194] In the display substrate provided in this embodiment, each sub-pixel includes a color filter pattern 251. Using the color filter pattern 251 instead of a polarizer not only improves the light extraction efficiency and reduces the power consumption of the display substrate, but also facilitates high integration and thinning of the display substrate. The display substrate using the color filter pattern 251 can also be used in foldable products. By making the orthographic projection of the pixel opening 221 of each sub-pixel on the substrate 210 include multiple arc segments 223, and the curvature center of each point on each arc segment 223 is located on the same side of the arc segment 223, the display effect of the display substrate in the dark state can be improved, thereby enhancing the display effect of the display substrate.

[0195] In some examples, as shown in Figures 11A and 11B, the display substrate further includes a black matrix layer 240, and each sub-pixel also includes a clearance opening 241 located in the black matrix layer 240. The pixel opening 221 of each sub-pixel falls within the orthographic projection of the clearance opening 241 onto the substrate 210, and the clearance opening 241 of each sub-pixel falls within the orthographic projection of the color filter pattern 251 onto the substrate 210. The figures schematically show that the pixel opening 221, clearance opening 241, and color filter pattern 251 of each sub-pixel have the same shape; however, the shapes of the pixel opening 221, clearance opening 241, and color filter pattern 251 are not limited in the embodiments of this disclosure.

[0196] The embodiments disclosed herein do not limit the shapes of the clearance opening and the color filter pattern. The shape of the clearance opening only needs to ensure that the orthographic projection of the pixel opening onto the substrate falls within the orthographic projection of the clearance opening onto the substrate. Similarly, the shape of the color filter pattern only needs to ensure that the orthographic projections of both the pixel opening and the clearance opening onto the substrate fall within the orthographic projection of the color filter pattern onto the substrate. The shapes of the clearance opening and the color filter pattern can be similar to or different from the pixel opening, and can be designed according to optical requirements, etc., which will not be elaborated further here.

[0197] In some examples, as shown in Figure 11B, the light-emitting device EM of each sub-pixel includes a first electrode 231, a light-emitting functional layer 232, and a second electrode 233. The light-emitting functional layer 232 includes a light-emitting portion 2320 located within the pixel opening 221.

[0198] This disclosure does not limit whether the light-emitting functional layer 232 of the third color sub-pixel PX03 is integrated into a shared 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 by different openings in the mask, or they can be integrated into a shared light-emitting functional layer by the same opening in the mask, which will not be elaborated here.

[0199] In some examples, as shown in Figures 11A and 11B, the minimum spacing L20 between the boundary of the orthographic projection of the color filter pattern 251 of each sub-pixel onto the substrate 210 and the boundary of the orthographic projection of the clearance opening 241 onto the substrate 210 is not less than 4 μm. This prevents the color filter pattern 251 from peeling off, improving product quality. For example, this minimum spacing is not less than 5 μm. The embodiments of this disclosure do not limit the size of this minimum spacing.

[0200] In some examples, as shown in Figure 11A, the shape of the pixel opening 221 of each sub-pixel projected onto the substrate 210 can be approximately circular. The multiple arc segments 223 of the pixel opening 221 of each sub-pixel are arcs or approximately arcs. Therefore, the display effect of the display substrate in a dark state can be improved, thus enhancing the overall display performance.

[0201] Figure 12 is another planar schematic diagram of the display substrate provided in an embodiment of this disclosure. As shown in Figure 12, 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 connected respectively. 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 and in a direction away from the first arc segment 2231. The maximum size of the pixel opening 221 along the first direction X is the first size L21, and the maximum size of the pixel opening 221 along the second direction Y is the second size L22. The first size L21 is larger than the second size L22. While 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 aperture 221 area and aperture ratio of the third color sub-pixel PX03, thereby improving the lifespan of the third color sub-pixel PX03 and improving the display effect and lifespan of the display substrate.

[0202] In some examples, as shown in Figure 12, the area of ​​the pixel aperture 221 of the third color sub-pixel PX03 projected onto the substrate 210 is larger than the area of ​​the pixel aperture 221 of the first color sub-pixel PX01 and the second color sub-pixel PX02 projected onto the substrate 210. By increasing the area and aperture ratio of the pixel aperture 221 of the third color sub-pixel PX03, the lifetime of the third color sub-pixel PX03 can be increased.

[0203] In some examples, as shown in Figure 12, 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 extension direction of the line connecting the two endpoints P01 and P02 is parallel to the second direction Y. This not only facilitates the structural design of the pixel opening 221 of the third color sub-pixel PX03, but also improves the symmetry of the pixel opening 221 of the third color sub-pixel PX03 about the first direction X, which is beneficial to improving the display effect.

[0204] In some examples, as shown in Figure 12, 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.

[0205] In some examples, as shown in Figure 12, the shape of the first arc segment 2231 includes a portion of an ellipse, and the major axis of the ellipse containing the first arc segment 2231 is parallel to the first direction X. Therefore, the ellipse shape of the first arc segment 2231 not only improves the display effect of the display substrate, especially the dark display effect, but also, the parallelism of the ellipse's major axis to the first direction X allows for maximum utilization of the space between two adjacent third color sub-pixels PX03 along the first direction X, making the first size of the third color sub-pixel PX03 larger than its second size, 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 containing the first arc segment 2231.

[0206] In some examples, as shown in Figure 12, the shape of the second arc segment 2232 includes a portion of a circle. This can improve the display effect of the display substrate, especially the dark display effect.

[0207] In some examples, as shown in Figure 12, the line connecting the two endpoints P01 and P02 of the second arc segment 2232 is equal to the diameter of the circle containing the second arc segment 2232. This not only increases the opening area and aperture ratio, but also makes the lines at the connection point of the first arc segment 2231 and the second arc segment 2232 more natural and smooth, improving the display effect. Of course, this embodiment is not limited in this respect; the ratio of the second arc segment 2232 or the first arc segment 2231 to the total perimeter of the pixel opening 221 can be adjusted according to the display effect in dark conditions or the aperture ratio requirements to meet display or aperture ratio requirements.

[0208] In some examples, the second arc segment can also be part of an ellipse. For instance, the major axis of the ellipse containing the second arc segment 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 containing the second arc segment, and the line connecting the two endpoints of the first arc segment is equal to the minor axis of the ellipse containing the first arc segment. This can improve the display effect of the display substrate, especially the dark display effect.

[0209] In some examples, as shown in Figure 12, the orthographic projection of the pixel opening 221 of the first color sub-pixel PX01 onto the substrate 210 can be approximated as a circle. 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 circular arcs and ellipses.

[0210] In some examples, as shown in Figure 12, two adjacent sub-pixel groups along the first direction X include a first sub-pixel group Gr21 and a second sub-pixel group Gr22. For example, 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 is symmetrical about an axis parallel to the second direction Y. This configuration can improve the display effect of the display substrate in the dark state and enhance the display performance of the display substrate.

[0211] In some examples, as shown in Figure 12, 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 opening 221 of the third color sub-pixel PX03 of the third sub-pixel group Gr23 and the fourth sub-pixel group Gr24 is symmetrical about an axis parallel to the second direction Y.

[0212] In some examples, as shown in Figure 12, the two opposing arc segments 223 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 the second arc segment 2232, and the two opposing arc segments 223 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 the first arc segment 2231. This configuration can improve the display effect of the display substrate in a dark state, thereby enhancing the overall display performance.

[0213] In some examples, as shown in Figure 12, 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 setting can improve the display effect of the display substrate in the dark state and enhance the display performance of the display substrate.

[0214] In some examples, as shown in Figure 12, 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, this trapezoid is an isosceles trapezoid.

[0215] Figure 13 is another planar schematic diagram of the display substrate provided in an embodiment of this disclosure. As shown in Figure 13, the orthographic projection of the pixel opening 221 of at least one sub-pixel of a plurality of sub-pixels on the substrate 210 includes a plurality of arc segments 223 and a plurality of 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 in the direction of the center O of the pixel opening 221 of the back-ion pixel. The arrangement of the raised line segments 224 can make full use of the space between two adjacent sub-pixels to increase the pixel opening area and aperture ratio of the sub-pixel, improve the lifespan of the sub-pixel, and improve the display effect and lifespan of the display substrate.

[0216] The figure schematically illustrates that the pixel opening 221 of the third color sub-pixel PX03 and the second color sub-pixel PX02 includes raised line segments 224. However, this embodiment of the present disclosure is not limited to this and can be set according to needs. For example, only one sub-pixel in each sub-pixel group may have a pixel opening including a raised line segment, or each sub-pixel in each sub-pixel group may have a pixel opening including a raised line segment. The figure schematically illustrates that a sub-pixel includes 4 or 6 raised line segments. However, this embodiment of the present disclosure is not limited to this, for example, the number of raised line segments may be a positive integer greater than or equal to 1.

[0217] In some examples, as shown in Figure 13, 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. This improves the uniformity of the display effect and enhances the display performance of the display substrate.

[0218] In some examples, as shown in Figure 13, 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, 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, multiple arc segments 223 of the pixel opening 221 of the second color sub-pixel PX02 are located on the same virtual circle. This improves the display effect of the display substrate, especially the dark display effect.

[0219] In some examples, a portion of the arc segments of the pixel opening of a sub-pixel, including the raised line segment, may lie on the same virtual circle, and another portion may lie on the same virtual ellipse. For example, in the embodiment shown in Figure 12, the pixel opening of the third color sub-pixel of each sub-pixel group may also include the raised line segment, thereby allowing the arc segments located on the same virtual ellipse to further utilize the space between two adjacent sub-pixels, further increasing the pixel opening area and aperture ratio of the sub-pixel.

[0220] In some examples, as shown in Figure 13, 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, thereby making full use of this space to increase the area of ​​the pixel aperture 221 and the aperture ratio of the third color sub-pixel PX03.

[0221] In some examples, as shown in Figure 13, 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.

[0222] In some examples, as shown in Figure 13, the diameter of the virtual circle containing the multiple arc segments 223 of the third color sub-pixel PX03 is larger than the diameter of the virtual circle containing the multiple arc segments 223 of the second color sub-pixel PX02. This increases the area and aperture ratio of the pixel aperture 221 of the third color sub-pixel PX03.

[0223] In some examples, as shown in Figure 13, the pixel opening 221 of the first color sub-pixel PX01 of each sub-pixel group is approximately circular in its orthographic projection onto the substrate 210. This improves the display effect of the display substrate in dark conditions, thereby enhancing its overall display performance.

[0224] In some examples, as shown in Figure 13, the area of ​​the pixel opening 221 of the third color sub-pixel PX03 projected onto the substrate 210 is larger than the area of ​​the pixel opening 221 of the second color sub-pixel PX02 projected onto the substrate 210, and the area of ​​the pixel opening 221 of the second color sub-pixel PX02 projected onto the substrate 210 is larger than the area of ​​the pixel opening 221 of the first color sub-pixel PX01 projected onto the substrate 210.

[0225] In some examples, as shown in Figure 13, multiple 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 multiple raised line segments 2241 of the first group of raised line segments 2241 are equally spaced, and the multiple raised line segments 2242 of the second group of raised line segments 2242 are equally spaced. This improves the uniformity of the display effect and enhances the display performance of the display substrate.

[0226] In some examples, as shown in Figure 13, 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 within the first group of raised line segments 2241. This allows for more efficient use of the space between adjacent sub-pixels, further improving space utilization and increasing the area and aperture ratio of the pixel opening 221.

[0227] In some examples, as shown in Figure 13, the raised line segment 224 is an arc. This improves the display effect of the display substrate, especially the dark display effect. For example, the raised line segment 224 is a semicircle.

[0228] Figure 14 is another planar schematic diagram of the display substrate provided in an embodiment of this disclosure. As shown in Figure 14, the raised line segment 224 of the sub-pixel includes a straight line segment 225. This allows for a larger area of ​​the pixel opening formed by the raised line segment 224, and thus a larger area of ​​the pixel opening 221 of the sub-pixel. For example, the corners between two adjacent straight line segments 225 of the raised line segment 224 can be rounded.

[0229] In some examples, as shown in FIG14, the pixel openings 221 of the first color sub-pixel PX01, the second color sub-pixel PX02, and the third color sub-pixel PX03 in each sub-pixel group all include raised line segments 224. For example, the number of raised line segments 224 in each sub-pixel of each sub-pixel group is equal. Of course, the number of raised line segments 224 is not limited in the embodiments of this disclosure.

[0230] In some examples, as shown in Figures 13 and 14, each raised line segment 224 has a maximum distance L25 from the virtual circle, and the maximum distance L25 is not less than 5 μm. This satisfies the forming process requirements of 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 distance L25 can be 6 μm, 8 μm, or 10 μm, which will not be elaborated further here.

[0231] In some examples, as shown in Figures 13 and 14, the shape of the orthographic projection of the clearance opening 241 of each sub-pixel onto the substrate 210 is the same as the shape of the orthographic projection of the pixel opening 221 onto the substrate 210. For example, the shapes of the orthographic projections of the clearance openings 241 and the pixel openings 221 onto the substrate 210 are set at equal intervals. This ensures the display effect of the display substrate. Of course, the shape of the clearance opening 241 is not limited in this embodiment.

[0232] In some examples, as shown in Figures 13 and 14, the total length of the arc segment of the pixel opening of the sub-pixel, including the raised line segment 224d, is not less than 1 / 3 of the total perimeter of the pixel opening of that sub-pixel. This improves the display effect, especially the dark display effect.

[0233] This disclosure provides a display substrate. The pixel opening of the third color sub-pixel in each sub-pixel group of the display substrate 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 substrate includes at least one of multiple arc segments. The orthographic projection of each sub-pixel opening of the third color sub-pixel on the substrate also includes at least one straight line segment connected to the arc segments.

[0234] In the display substrate provided in this embodiment, the pixel opening of the third color sub-pixel is designed in blocks, so that the pixel opening of the third color sub-pixel includes multiple sub-pixel openings, and adjacent two sub-pixel openings are separated by the separator of the pixel limiting layer. This reduces the area of ​​a single sub-pixel opening of the third color sub-pixel, avoiding the dark spot problem caused by an excessively large area of ​​a single sub-pixel opening. Each sub-pixel opening of the third color sub-pixel includes arc segments and straight segments. The arc segments improve the display effect of the display substrate in dark conditions, enhancing the display effect. The straight segments prevent the area of ​​each sub-pixel opening of the third color sub-pixel from being too small, and prevent the sum of the sub-pixel openings of the third color sub-pixel from being too small, ensuring the pixel opening area and aperture ratio of the third color sub-pixel. For example, when designing the pixel opening of the third color sub-pixel in blocks, if the shape of the sub-pixel opening's orthographic projection on the substrate is all arc segments, the area of ​​each sub-pixel opening may be significantly reduced while meeting the minimum process size and minimum gap requirements. The impact of the partition setting 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 setting the straight line segment. Thus, the dark spot problem can be solved, the display effect in dark state can be guaranteed, and the pixel opening area and aperture ratio of the third color sub-pixel can also be guaranteed.

[0235] Figure 15 is another planar schematic diagram of the display substrate provided in an embodiment of the present disclosure. As shown in Figure 15, 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 limiting layer 220 includes a partition portion 2201 located between the plurality of sub-pixel openings 2210, the orthographic projection of each sub-pixel opening 2210 of the third color sub-pixel PX03 on the 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 substrate 210 also includes at least one straight line segment 225 connected to the arc segment 223.

[0236] In this example, the pixel aperture 221 of the third color sub-pixel PX03 is designed in blocks, reducing the area of ​​each individual sub-pixel aperture 2210 of the third color sub-pixel PX03 and avoiding the dark spot problem caused by an excessively large area of ​​each individual sub-pixel aperture 2210 of the third color sub-pixel PX03. Each sub-pixel aperture 2210 of the third color sub-pixel PX03 includes an arc segment 223 and a straight segment 225. The arc segment 223 can improve the display effect of the display substrate in dark conditions, thereby enhancing the display effect. The straight segment 225 can increase the area and aperture ratio of the pixel aperture 221 of the third color sub-pixel PX03. For example, the arc segments 223 and straight segments 225 that are connected to each other in the sub-pixel apertures 2210 of the third color sub-pixel PX03 can be rounded or right-angled.

[0237] In some examples, as shown in Figure 15, 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 and aperture ratio of the pixel openings 221 of the third color sub-pixel PX03.

[0238] In some examples, as shown in Figure 15, each sub-pixel opening 2210 includes two arc segments 223 arranged along the second direction Y and facing 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 including two arc segments 223 can improve the display effect of the display substrate, especially the dark display effect. The arrangement of the two arc segments 223 along the second direction Y facilitates the design of the arc segments 223, allowing them to have a longer dimension, which further improves the display effect of the display substrate, especially the dark display effect.

[0239] In some examples, as shown in Figure 15, the maximum size L26 of each sub-pixel opening 2210 along the second direction Y is not less than the maximum size L27 along the first direction X. Therefore, multiple 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 size in the second direction Y, thereby improving the opening area and aperture ratio.

[0240] In some examples, as shown in Figure 15, each sub-pixel opening 2210 of the third color sub-pixel PX03 includes a recess 2211. The recess 2211 is recessed toward the center of each sub-pixel opening 2210, and the recess 2211 is located at least on the side of each sub-pixel opening 2210 closest to the adjacent sub-pixel opening 2210. The recess 2211 can reduce the size of the sub-pixel opening 2210 along the first direction X, thereby allowing multiple sub-pixel openings 2210 to be arranged along the first direction X, which facilitates the structural design of multiple sub-pixel openings 2210.

[0241] In some examples, as shown in Figure 15, each sub-pixel opening 2210 of the third color sub-pixel PX03 includes two recesses 2211 arranged along the first direction X, with the two recesses 2211 located on opposite sides of each sub-pixel opening 2210 along the first direction X. For example, the two recesses 2211 are symmetrical about an axis parallel to the second direction Y. This improves the symmetry of the sub-pixel openings 2210, enhances the uniformity of the display effect, and improves the display performance of the display substrate.

[0242] For example, as shown in Figure 15, the two recesses 2211 are symmetrical about an axis parallel to the first direction X and also about an axis parallel to the second direction Y.

[0243] In some examples, as shown in FIG15, the shape of the recess 2211 in the orthographic projection of the substrate 210 includes a straight line segment 225.

[0244] In some examples, as shown in Figure 15, the orthographic projection of the recess 2211 onto the 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 recess 2211 is less than the length of the bottom edge 2211a. This minimizes the length of the side edges 2211b of the recess 2211, reducing the impact of the recess 2211 on the reduction of the area 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, which will not be elaborated further here.

[0245] In some examples, as shown in Figure 15, the ratio of the length of the bottom edge 2211a of the recess 2211 to the maximum distance L26 between the two arc segments 223 along the second direction Y ranges from 1 / 6 to 5 / 6. By setting 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. This allows the multiple sub-pixel openings 2210 to utilize the space between two adjacent third color sub-pixels PX03 along the first direction X as much as possible, 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, etc., of the maximum distance between the two arc segments 223 along the second direction Y, which will not be elaborated further here.

[0246] In some examples, as shown in Figure 15, 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 display effect. The figure schematically shows that the arc segment 223 is a circular arc, but this disclosure does not limit it.

[0247] In some examples, as shown in Figure 15, the two arc segments 223 have the same shape. This improves the symmetry of the sub-pixel openings 2210, enhances the uniformity of the display effect, and improves the overall display performance of the display substrate.

[0248] In some examples, as shown in Figure 15, 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 effect of the display substrate, especially the dark display effect. The figure schematically shows two arc segments 223 located on the same virtual circle, but this is not a limitation of the embodiments disclosed herein.

[0249] In some examples, as shown in Figure 15, the pixel opening 221 of the first color sub-pixel PX01 has the same shape as the sub-pixel openings 2210 of the third color sub-pixel PX03. For example, the pixel opening 221 of the second color sub-pixel PX02 has the same shape as the sub-pixel openings 2210 of the third color sub-pixel PX03. This improves the display effect of the display substrate.

[0250] In some examples, as shown in FIG15, the orthographic projection of the pixel opening 221 of the first color sub-pixel PX01 onto 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 curvature center 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 recesses 2211 arranged along the second direction Y. The two recesses 2211 of the pixel opening 221 of the first color sub-pixel PX01 are located on both sides of the pixel opening 221 along the second direction Y. For example, the two recesses 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 recesses 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 opening 221 of the first color sub-pixel PX01 and the third color sub-pixel PX03 can be facilitated.

[0251] In some examples, as shown in FIG15, the orthographic projection of the pixel opening 221 of the second color sub-pixel PX02 onto 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 curvature center 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 recesses 2211 arranged along the second direction Y. The two recesses 2211 of the pixel opening 221 of the second color sub-pixel PX02 are located on both sides of the pixel opening 221 along the second direction Y. For example, the two recesses 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 recesses 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 opening 221 of the second color sub-pixel PX02 and the third color sub-pixel PX03 can be facilitated.

[0252] In some examples, as shown in FIG15, the orthographic projection of the recess 2211 of the pixel opening 221 of the first color sub-pixel PX01 onto the substrate 210 includes a bottom edge 2211a parallel to the first direction X and a side edge 2211b parallel to the second direction Y. The recess 2211 of the pixel opening 221 of the second color sub-pixel PX02 also includes a bottom edge 2211a parallel to the first direction X and a side edge 2211b parallel to the second direction Y. The area of ​​the orthographic projection of the pixel opening 221 of the second color sub-pixel PX02 of each sub-pixel group Gr onto the substrate 210 is larger than the area of ​​the orthographic projection of the pixel opening 221 of the first color sub-pixel PX01 onto the substrate 210, and the length of the bottom edge 2211a of the recess 2211 of the pixel opening 221 of the second color sub-pixel PX02 is larger than the length of the bottom edge 2211a of the recess 2211 of the pixel opening 221 of the first color sub-pixel PX01. By increasing the length of the bottom edge 2211a of the recess 2211 of the second color sub-pixel PX02, the area of ​​the pixel opening 221 and the pixel opening rate 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.

[0253] In some examples, as shown in Figure 15, the length of the side 2211b of the recess 2211 of the pixel opening 221 of the first color sub-pixel PX01 and the second color sub-pixel PX02 is less than the length of the bottom 2211a. This minimizes the length of the side 2211b of the recess 2211, reducing its impact 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 2211b can be 1 / 3, 1 / 4, etc., of the length of the bottom 2211a, which will not be elaborated further here.

[0254] In some examples, as shown in Figure 15, the ratio of the length of the bottom edge 2211a of the recess 2211 of the pixel opening 221 of the first color sub-pixel PX01 and the second color sub-pixel PX02 to the maximum distance between the two arc segments 223 along the second direction Y ranges from 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, facilitating the arrangement of the three sub-pixels of each sub-pixel group Gr in the second direction Y. For example, the length of the bottom edge 2211a can be 1 / 3, 1 / 2, etc., of the maximum distance between the two arc segments 223 along the second direction Y, which will not be elaborated further here.

[0255] In some examples, as shown in Figure 15, 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. This improves the display effect of the display substrate.

[0256] In some examples, as shown in Figure 15, the ratio of the total length of the arc segments 223 of each sub-pixel opening 2210 of the third color sub-pixel PX03 to the total perimeter of the sub-pixel opening 2210 projected onto the substrate 210 is not less than 1 / 3. By maximizing the total length of the arc segments 223, the display effect of the display substrate, especially the dark display effect, can be better 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.

[0257] In some examples, as shown in Figure 15, 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 is not less than 1 / 3 of the total perimeter of the sub-pixel opening 2210 projected onto the substrate 210. For example, this proportion is greater than or equal to 1 / 2. For example, this proportion is greater than or equal to 3 / 5.

[0258] In some examples, as shown in Figure 15, the clearance opening 241 of the third color sub-pixel PX03 includes multiple sub-clearance openings 2410. The orthographic projection of one sub-pixel opening 2210 of the third color sub-pixel PX03 onto the substrate 210 lies within the orthographic projection of one sub-clearance opening 2410 onto the substrate 210. By making one sub-pixel opening 2210 correspond to one sub-clearance opening 2410, the reflectivity of the non-display area between two adjacent sub-pixel openings 2210 can be reduced, improving the display effect. Of course, this disclosure does not limit this aspect. For example, multiple sub-pixel openings of the third color sub-pixel can correspond to one clearance opening, and the specific design can be tailored according to optical requirements, etc.

[0259] For example, as shown in Figure 15, the sub-pixel opening 2210 of the third color sub-pixel PX03 and the sub-avoidance opening 2410 have the same shape. Therefore, the sub-avoidance opening 2410 can be aligned with the sub-pixel opening 2210, minimizing the spacing between adjacent sub-avoidance openings 2410 and avoiding affecting the opening area of ​​the sub-pixel opening 2210.

[0260] In some examples, as shown in FIG15, the pixel opening 221 of the second color sub-pixel PX02 has the same shape as its corresponding clearance opening 241. Of course, this disclosure does not limit this. For example, the clearance opening of the second color sub-pixel can be circular or elliptical.

[0261] For example, as shown in Figure 15, the shape of the clearance 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 the limitations of the manufacturing process, the clearance opening 241 of the first color sub-pixel PX01 can be circular or elliptical, thereby simplifying the manufacturing process of the clearance opening and improving the yield rate.

[0262] In some examples, as shown in Figure 15, the minimum spacing between the apertures 2210 of two adjacent sub-pixels of the third color sub-pixel PX03 in each sub-pixel group Gr is a first spacing D21, and the minimum spacing between the apertures 221 of two third color sub-pixels PX03 in two adjacent sub-pixel groups Gr along the first direction X is a second spacing D22. The first spacing D21 is smaller than the second spacing D22. This not only increases the aperture ratio of the third color sub-pixels PX03 in each sub-pixel group but also ensures the lifetime of the third color sub-pixels in each sub-pixel group.

[0263] For example, the first pitch D21 can be set to the minimum size achievable by the molding process, thereby also improving the pixel aperture ratio.

[0264] For example, the value range of the second spacing D22 is 18μm-26μm. For example, the second spacing D22 can be 20μm, 24μm, etc., which will not be elaborated here.

[0265] Figure 16 is another planar schematic diagram of the display substrate provided in an embodiment of this disclosure. As shown in Figure 16, 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.

[0266] In this example, the pixel aperture 221 of the third color sub-pixel PX03 is designed in blocks, reducing the area of ​​each individual sub-pixel aperture 2210 of the third color sub-pixel PX03 and avoiding the dark spot problem caused by an excessively large area of ​​each individual sub-pixel aperture 2210 of the third color sub-pixel PX03. Each sub-pixel aperture 2210 of the third color sub-pixel PX03 includes an arc segment 223 and a straight segment 225. The arc segment 223 can improve the display effect of the display substrate in the dark state, thereby improving the display effect. The straight segment 225 can increase the area and aperture ratio of the pixel aperture 221 of the third color sub-pixel PX03.

[0267] In some examples, as shown in Figure 16, 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 effect 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 can 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.

[0268] In some examples, as shown in Figure 16, the two arc segments 223 of each sub-pixel opening 2210 of the third color sub-pixel PX03 include arcs. For example, the two arc segments 223 have the same shape. This improves the display effect of the display substrate.

[0269] In some examples, as shown in Figure 16, the pixel opening 221 of the second color sub-pixel PX02 has the same shape as the pixel openings 2210 of the third color sub-pixel PX03. For example, the pixel opening 221 of the first color sub-pixel PX01, when projected onto the substrate 210, has a circular or elliptical shape. This improves the display effect of the display substrate.

[0270] In some examples, as shown in Figure 16, the pixel opening 221 of the second color sub-pixel 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 sub-pixel PX02 and the third color sub-pixel PX03 are arranged along the second direction Y. By making the straight line segments 225 of the second color sub-pixel PX02 parallel to the first direction X, it is convenient for the second color sub-pixel PX02 and the third color sub-pixel PX03 of each sub-pixel group to be arranged in the second direction Y.

[0271] In some examples, as shown in Figure 16, the maximum size of the pixel opening 221 of the second color sub-pixel PX02 along the second direction Y is smaller than the maximum size 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 each sub-pixel group along the second direction Y.

[0272] In some examples, as shown in Figure 16, 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. Thus, 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, increasing the pixel aperture 221 ratio of the third color sub-pixels PX03 of each sub-pixel group.

[0273] In some examples, as shown in Figure 16, the minimum spacing between two adjacent sub-pixel openings 2210 of the third color sub-pixel 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 shared light-emitting functional layer 2320. The minimum spacing between the pixel openings 221 of the two third color sub-pixels PX03 of these two sub-pixel groups is a second spacing D22, and the first spacing D21 is equal to the second spacing D22. This improves the display effect. Furthermore, the first spacing D21 and the second spacing D22 can be set to the minimum size achievable by the molding process, thereby further increasing the pixel aperture ratio.

[0274] Figure 17 is another planar schematic diagram of the display substrate provided in an embodiment of this disclosure. One of the differences between the display substrate shown in Figure 17 and the display substrate shown in Figure 16 is that the pixel opening 221 of the first color sub-pixel PX01 and the pixel opening 2210 of the third color sub-pixel PX03 in Figure 17 have the same shape. As shown in Figure 17, the pixel opening 221 of the first color sub-pixel PX01 includes two arc segments 223 arranged along the first direction X and opposite to each other. The curvature center 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 sub-pixel PX01 and the third color sub-pixel PX03 are arranged along the second direction Y. By making the straight line segments 225 of the first color sub-pixel PX01 parallel to the first direction X, it is convenient for the first color sub-pixel PX01 and the third color sub-pixel PX03 of each sub-pixel group to be arranged in the second direction Y.

[0275] In some examples, as shown in Figure 17, the light-emitting functional layer of the third color sub-pixel PX03 in each sub-pixel group may not be integrated with the light-emitting functional layer of the third color sub-pixel PX03 of the adjacent sub-pixel. This disclosure does not limit this aspect.

[0276] Figure 18 is another planar schematic diagram of the display substrate provided in this embodiment. As shown in Figure 18, 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 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 block design of the pixel openings 221 of the third color sub-pixel PX03 can solve the dark spot problem. The setting of the arc segment 223 can improve the display effect of the display substrate in the dark state. The setting of the straight line segment 225 can increase the area and aperture ratio of the pixel openings 221 of the third color sub-pixel PX03. The two straight line segments 225 facing each other can make the third color sub-pixel PX03 have a better display effect.

[0277] In some examples, as shown in Figure 18, the arc segment 223 of each sub-pixel opening 2210 of the third color sub-pixel PX03 is part of an ellipse, and the major axis of the ellipse containing the arc segment 223 is parallel to the first direction X. This increases the size of each sub-pixel opening 2210 in the first direction X, thereby increasing the area of ​​each sub-pixel opening 2210. Of course, this disclosure does not limit this. The arc segment 223 of each sub-pixel opening 2210 can also be circular, thereby improving the display effect of the display substrate, especially the dark display effect.

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

[0279] In some examples, as shown in Figure 18, the pixel aperture 221 of the second color sub-pixel PX02 in each sub-pixel group includes two sub-pixel apertures 2210. Each sub-pixel aperture 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 apertures 2210 of the second color sub-pixel PX02 along the first direction X face each other. The block design of the pixel aperture 221 of the second color sub-pixel PX02 can solve the dark spot problem. The setting of the arc segment 223 can improve the display effect of the display substrate in the dark state. The setting of the straight line segment 225 can increase the area and aperture ratio of the pixel aperture 221 of the first color sub-pixel PX01. The two straight line segments 225 facing each other can make the second color sub-pixel PX02 have a better display effect.

[0280] Figure 18 schematically shows that the pixel openings 221 of both the first color sub-pixel PX01 and the second color sub-pixel PX02 include two sub-pixel openings 2210. However, depending on the requirements, the pixel opening 221 of one of the first color sub-pixel PX01 and the second color sub-pixel PX02 may include two sub-pixel openings 2210.

[0281] In some examples, as shown in Figure 18, 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 improves the display effect of the display substrate, especially the dark display effect, and also increases the sum of the areas of the sub-pixel openings 2210 of the second color sub-pixel PX02.

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

[0283] In some examples, as shown in Figure 18, the two sub-pixel openings 2210 of the second color sub-pixel PX02 are projected onto the substrate 210 in the same way as the orthogonal projection of the same clearance opening 241. For example, the two sub-pixel openings 2210 of the first color sub-pixel PX01 are projected onto the substrate 210 in the same way as the orthogonal projection of the same clearance opening 241.

[0284] In some examples, as shown in Figure 18, the minimum spacing between two adjacent sub-pixel apertures 2210 of the second color sub-pixel PX02 in each sub-pixel group Gr is a third spacing D23. The minimum spacing between two pixel apertures 221 of the first color sub-pixel PX01 and the second color sub-pixel PX02 in each sub-pixel group Gr is a fourth spacing D24. The third spacing D23 is smaller than the fourth spacing D24. Therefore, not only can the pixel aperture ratio of the second color sub-pixel PX02 be increased, but the lifespan of the first color sub-pixel and the second color sub-pixel can also be guaranteed.

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

[0286] In some examples, as shown in Figure 18, the third pitch D23 is equal to the fifth pitch D25, which can improve the display effect. Furthermore, the third pitch D23 and the fifth pitch D25 can be set to the minimum dimensions achievable by the molding process, thereby further improving the pixel aperture ratio.

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

[0288] In some examples, as shown in Figure 18, the fourth spacing D24 ranges from 18μm to 26μm. For example, the fourth spacing D24 can be 20μm, 24μm, etc., which will not be elaborated further here.

[0289] Figure 19 is another planar schematic diagram of the display substrate provided in an embodiment of this disclosure. As shown in Figure 19, 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 endpoints of the arc segment 223. The arrangement of the plurality of sub-pixel openings 2210 along the first direction X and the second direction Y can further reduce the area of ​​the sub-pixel openings 2210 and avoid dark spot problems.

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

[0291] In some examples, as shown in Figure 19, 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. This improves the display effect of the display substrate, especially the dark display effect.

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

[0293] In some examples, as shown in Figure 19, the shape of the pixel opening 221 of the first color subpixel PX01 of each subpixel group in the orthographic projection onto the substrate 210 is approximately circular.

[0294] In some examples, as shown in Figure 19, 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, with one sub-pixel opening 2210 corresponding to one sub-avoidance opening 2410, and the two have the same shape.

[0295] Figure 20 is another planar schematic diagram of the display substrate provided in an embodiment of this disclosure. As shown in Figure 20, the orthographic projection of each sub-pixel opening 2210 of the third color sub-pixel PX03 onto the substrate 210 includes a fan shape. The plurality of sub-pixel openings 2210 include two first sub-pixel openings 22101 arranged along a first direction X and two second sub-pixel openings 22102 arranged along a second direction Y. The vertices of the two first sub-pixel openings 22101 face each other, and the vertices of the two second sub-pixel openings 22102 face each other. In this example, the third color sub-pixel PX03 includes four sub-pixel openings 2210, which can further reduce the area of ​​the sub-pixel openings 2210 and avoid dark spot problems. The four pixel openings 221 are fan-shaped and their vertices face each other, which can improve the display effect of the third color sub-pixel PX03, especially the dark display effect.

[0296] In some examples, as shown in Figure 20, the distance L28 between two first sub-pixel openings 22101 is greater than the distance L29 between 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 two first sub-pixel openings 22101 greater than the distance L29 between 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 and aperture ratio of the pixel openings 221 of the third color sub-pixels PX03. Of course, this disclosure does not limit this. For example, the distance between two first sub-pixel openings 22101 can also be equal to the distance between two second sub-pixel openings 22102.

[0297] In some examples, as shown in Figure 20, the orthographic projection of each sub-pixel opening 2210 of the third color sub-pixel PX03 onto the substrate 210 includes a sector, which includes two straight line segments 225 and an arc segment 223.

[0298] In some examples, as shown in Figure 20, the included angle between the two straight line segments 225 of the first sub-pixel opening 22101 is a first included angle θ1, and the included angle between the two straight line segments 225 of the second sub-pixel opening 22102 is a second included angle θ2. The difference between the first included angle θ1 and the second included angle θ2 is no greater than 50 degrees. Therefore, 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, as shown in Figure 20, the diameters of the circles containing the arc segments 223 of each sub-pixel opening 2210 of the third color sub-pixel PX03 are the same. For example, the diameter of the circle containing the arc segment 223 of the first sub-pixel opening 22101 is the same as the diameter of the circle containing the arc segment 223 of the second sub-pixel opening 22102. This allows the first sub-pixel opening 22101 and the second sub-pixel opening 22102 to have the same shape, improving the display effect of the third color sub-pixel PX03 and the display substrate.

[0300] In some examples, as shown in Figure 20, the orthographic projection of the pixel opening 221 of the second color sub-pixel PX02 onto the substrate 210 is an ellipse, with the major axis of the ellipse parallel to the first direction X. For example, the orthographic projection of the pixel opening 221 of the first color sub-pixel PX01 onto the 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 aperture of the third color subpixel in each subpixel group projected onto the substrate is not less than 2000 μm. 2 For example, the sum of the areas of all sub-pixel openings of the third color sub-pixel in each sub-pixel group projected onto the substrate is not less than 2000 μm. 2 For example, the area mentioned above can be greater than 3000 μm. 2 The specific value of this area is not limited in the embodiments disclosed herein. For example, the display substrate of this disclosure is a medium-to-large-sized display substrate. For example, for medium-to-large-sized display substrates, compared with small-sized display substrates used in mobile phones, watches, etc., the pixel aperture area of ​​the third color sub-pixel of the medium-to-large-sized display substrate is larger, and the probability of dark spots is greater. By adopting the above-mentioned display substrate technical solution of this disclosure, the dark spot problem can be effectively solved, and the display effect and display efficiency can be improved.

[0303] This disclosure also provides a display device. FIG21 is a schematic diagram of one embodiment provided by this disclosure. As shown in FIG21, the display device includes any of the display substrates mentioned above, and thus, the display device has the beneficial effects corresponding to the beneficial effects of the display substrate, which will not be described again here.

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

[0305] The following points need to be explained:

[0306] (1) The accompanying drawings of the embodiments of this disclosure only involve the structures involved in the embodiments of this disclosure. Other structures can be referred to the general design.

[0307] (2) Where there is no conflict, features of the same embodiment and different embodiments of this disclosure can be combined with each other.

[0308] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A display substrate, comprising: Substrate; A pixel defining layer is located on the substrate. as well as The light-emitting device layer is located on the substrate. The display substrate includes a plurality of sub-pixels, which 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, and each sub-pixel group 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. The area of ​​the pixel opening of the third color sub-pixel projected onto the substrate is larger than the area of ​​the pixel opening of the first color sub-pixel and the second color sub-pixel projected onto the substrate. The pixel opening of the third color sub-pixel in each sub-pixel group includes M sub-pixel openings. 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. 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 adjacent sub-pixel groups along the first direction are integrated into a shared light-emitting functional layer. The shared light-emitting functional layer of the two adjacent sub-pixel groups along the first direction includes 2M sub-light-emitting parts 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, 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 is integrated into the shared 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 the first spacing, and 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 the second spacing, and the first spacing is equal to the second spacing.

3. The display substrate according to claim 1, wherein, 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 is integrated into the shared 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. The area of ​​the first sub-pixel opening projected onto the substrate is not greater than the area of ​​the second sub-pixel opening projected onto the substrate.

4. The display substrate according to claim 3, wherein, The ratio of the area of ​​the second sub-pixel opening of the third color sub-pixel projected onto the substrate to the area of ​​the first sub-pixel opening projected onto the substrate is not less than 2.

5. The display substrate according to claim 3, wherein, The size of the second sub-pixel opening along the first direction is not less than the size 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 being arranged along the second direction, and the two second sub-pixel openings being arranged along the second direction.

7. The display substrate according to any one of claims 2-6, wherein, The M sub-pixel openings of the third color sub-pixel 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 2-7, wherein, The area of ​​the pixel opening of the second color sub-pixel in each of the sub-pixel groups projected onto the substrate is larger than the area of ​​the pixel opening of the first color sub-pixel projected onto the substrate. The pixel opening of the second color sub-pixel in each of the sub-pixel groups includes M sub-pixel openings, and the M sub-pixel openings of the second color sub-pixel in each of the sub-pixel groups are arranged in the same way as the M sub-pixel openings of the third color sub-pixel.

9. The display substrate according to claim 8, wherein, The pixel opening of the first color sub-pixel in each of the aforementioned sub-pixel groups includes M sub-pixel openings, and the arrangement of the M sub-pixel openings of the first color sub-pixel in each of the aforementioned sub-pixel groups is the same as that of the M sub-pixel openings of the third color sub-pixel. The M sub-pixel openings of the first color sub-pixel in each of the sub-pixel groups include a third sub-pixel opening and a fourth sub-pixel opening arranged along the first direction. 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.

10. The display substrate according to claim 1, wherein, 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 parts located in the sub-pixel openings of the third color sub-pixels. The M sub-pixel openings of the third color sub-pixel in 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.

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 comprising a plurality of sub-pixels arranged along the first direction. The plurality of 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 sequentially along the second direction. The first sub-pixel column includes a first color sub-pixel and a second color sub-pixel arranged alternately along the first direction. The plurality of sub-pixels in the second sub-pixel column are arranged repeatedly 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 in the third sub-pixel column are the third color sub-pixels. The plurality of sub-pixels in the fourth sub-pixel column are arranged repeatedly 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 1-11, wherein, The M sub-pixel openings of the third color sub-pixel in each sub-pixel group include two sub-pixel openings arranged along the first direction. The two sub-pixel openings include a pair of adjacent sides facing each other, and the extension direction of at least one of the adjacent sides intersects both the first direction and the second direction.

13. The display substrate according to any one of claims 1-12, wherein, The shape of the M sub-pixel openings of the third color sub-pixel in each of the sub-pixel groups includes a polygon, the polygon including 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 1-13, wherein, The minimum spacing between the openings of two adjacent sub-pixels of the third color sub-pixel in each sub-pixel group is not less than 6 μm.

15. The display substrate according to any one of claims 1-14, wherein, The light-emitting device of each sub-pixel further includes a first electrode located on the side of the light-emitting functional layer near the substrate. The orthographic projection of the M sub-pixel openings of the third color sub-pixel onto the substrate is located within the orthographic projection of the first electrode of the light-emitting device of the third color sub-pixel onto the substrate. The orthographic projection of the separation portion between the M sub-pixel openings onto the substrate at least partially overlaps with the orthographic projection of the first electrode of the light-emitting device of the third color sub-pixel onto the substrate.

16. The display substrate according to any one of claims 1-14, wherein, The light-emitting device of each sub-pixel further includes a first electrode located on the side of the light-emitting functional layer near the substrate. 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-electrodes of the third color sub-pixel correspond one-to-one with the M sub-pixel openings, and the sub-pixel openings expose at least a portion of one of the sub-electrodes of the corresponding third color sub-pixel.

17. The display substrate according to any one of claims 1-16, wherein, The ratio of the area of ​​the pixel opening of the third color sub-pixel in each sub-pixel group projected onto the substrate to the total area of ​​all pixel openings in the sub-pixel group projected onto the substrate ranges from 40% to 60%.

18. The display substrate according to any one of claims 1-17, wherein, The value of M is in the range of 2-10.

19. The display substrate according to any one of claims 1-18, further comprising: The color filter layer is located on the side of the light-emitting device layer away from the substrate. Each of the sub-pixels further includes a color filter pattern located in the color filter layer, and the pixel opening of each sub-pixel falls within the orthogonal projection of the color filter pattern onto the substrate.

20. The display substrate according to claim 19, further comprising a black matrix layer, wherein, Each sub-pixel further includes a clearance opening located in the black matrix layer, wherein the pixel opening of each sub-pixel falls within the orthographic projection of the clearance opening onto the substrate. The avoidance opening of the third color sub-pixel includes a plurality of sub-avoidance openings. The orthographic projection of one of the sub-pixel openings of the third color sub-pixel onto the substrate is located within the orthographic projection of one of the sub-avoidance openings onto the substrate. The sub-pixel opening of the third color sub-pixel and the sub-avoidance opening have the same shape.

21. The display substrate according to claim 20, wherein, The pixel opening of the first color sub-pixel includes two sub-pixel openings, and the two sub-pixel openings of the first color sub-pixel are located within the same clearance opening in the orthographic projection of the substrate, and / or The pixel opening of the second color sub-pixel includes two sub-pixel openings, and the two sub-pixel openings of the second color sub-pixel are located in the same orthographic projection of the substrate, where the clearance opening is within the orthographic projection of the substrate.

22. A display substrate, comprising: Substrate; A pixel defining layer is located on the substrate. A light-emitting device layer is located on the substrate. as well as The color filter layer is located on the side of the light-emitting device layer away from the substrate. The display substrate includes a plurality of sub-pixels, which 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, and each sub-pixel group 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 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 filter pattern located in the color filter layer. The pixel opening of each sub-pixel, when projected onto the substrate, falls within the projected image of the color filter pattern on the substrate. The orthographic projection of the pixel opening of each sub-pixel onto the substrate comprises multiple arc segments, and the curvature center 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 plurality of 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 connected respectively. 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 and in a direction away from the first arc segment. The maximum size of the pixel opening of the third color sub-pixel along the first direction is a first size, and the maximum size along the second direction is a second size. The first size is larger than the second size.

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 containing the first arc segment 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 containing the first arc segment.

25. The display substrate according to claim 24, wherein, The shape of the second arc segment includes a portion of a circle, and the line connecting the two endpoints of the second arc segment is equal to the diameter of the circle containing the second arc segment, or The shape of the second arc segment includes a portion of an ellipse, the major axis of the ellipse containing the second arc segment 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 containing the second arc segment.

26. The display substrate according to any one of claims 23-25, wherein, 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 opening of the third color sub-pixel of the first sub-pixel group and the second sub-pixel group are the second arc segment, and the two opposing arc segments of the pixel opening of the third color sub-pixel of the third sub-pixel group and the fourth sub-pixel group are the first arc segment.

27. The display substrate according to claim 26, wherein, The minimum spacing between the pixel openings of the third color sub-pixels in 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 in the third sub-pixel group and the fourth sub-pixel group.

28. The display substrate according to claim 26, wherein, The quadrilateral formed by connecting the geometric centers of the pixel openings of the third color subpixels of the first subpixel group, the second subpixel group, the third subpixel group, and the fourth subpixel group in sequence includes a pair of sides that are opposite to each other and not parallel.

29. The display substrate according to claim 22, wherein, The orthogonal projection of the pixel opening of at least one of the plurality of sub-pixels on the substrate further includes a plurality of raised line segments, each of the raised line segments being located between two adjacent arc segments and connecting the two adjacent arc segments, and each of the raised line segments protruding 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 about an axis parallel to the first direction.

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

32. The display substrate according to claim 31, wherein, Each of the protruding 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 any one of claims 29-32, wherein, The plurality of raised segments are divided into a first group of raised segments and a second group of raised segments. The first group of raised segments and the second group of raised segments are symmetrical about an axis parallel to the second direction. The plurality of raised segments in the first group are equally spaced, and the plurality of raised segments in the second group are equally spaced. 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 within the first group of raised line segments.

34. The display substrate according to any one of claims 29-33, wherein, Each of the protruding segments includes at least one of an arc segment and a straight 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 a plurality of sub-pixel openings, the pixel defining layer includes a partition between the plurality of sub-pixel openings, the orthographic projection of each sub-pixel opening of the third color sub-pixel on the substrate includes at least one of the plurality of arc segments, and the orthographic projection of each sub-pixel opening of the third color sub-pixel on the substrate also includes at least one straight line segment connected to the arc segment.

36. The display substrate according to claim 35, wherein, The ratio of the total length of the arc segment of each sub-pixel opening of the third color sub-pixel to the total perimeter of the sub-pixel opening projected onto the substrate is not less than 1 / 3.

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 curvature centers of each point on the two arc segments are located between the two arc segments. The two arc segments are connected by the at least one straight line segment. The maximum dimension of each sub-pixel opening 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 of the sub-pixel openings of the third color sub-pixel includes a recessed portion that is recessed toward the center of each sub-pixel opening, and the recessed portion is located at least on the side of each sub-pixel opening closest 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 less than the length of the bottom edge. The ratio of the length of the bottom edge of the recessed portion to the maximum distance between the two arc segments along the second direction ranges from 1 / 6 to 5 / 6.

40. The display substrate according to claim 38, wherein, Each of the sub-pixel openings of the third color sub-pixel includes two recesses arranged along the first direction, the two recesses being located on both 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 of the sub-pixel openings 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 onto the substrate includes two arc segments arranged along the first direction and facing 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 recesses arranged along the second direction. The two recesses of the pixel opening of the first 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 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 curvature center 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 recesses arranged along the second direction. The two recesses 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 recessed portion of the pixel opening of the first color sub-pixel on the substrate includes a bottom edge parallel to the first direction and a side edge parallel to the second direction; the recessed portion of the pixel opening of the second color sub-pixel also includes a bottom edge parallel to the first direction and a side edge parallel to the second direction. The area of ​​the pixel opening of the second color sub-pixel in each sub-pixel group projected onto the substrate is larger than the area of ​​the pixel opening of the first color sub-pixel projected onto the substrate, and the length of the bottom edge of the recess of the pixel opening of the second color sub-pixel is larger than the length of the bottom edge of the recess of the pixel opening of the first color sub-pixel.

44. 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 sub-pixel opening includes an arc segment and a straight line segment connecting the two endpoints of the arc segment. 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 any one of claims 35-44, wherein, The minimum spacing between the openings of two adjacent sub-pixels of the third color sub-pixel in each sub-pixel group is the first spacing, and the minimum spacing between the openings of the two third color sub-pixels in two adjacent sub-pixel groups along the first direction is the second spacing, wherein 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 in each of the sub-pixel groups 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 endpoints of the arc segment. The two straight line segments of 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 in each of the sub-pixel groups 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 endpoints of the arc segment. The two straight line segments of the two adjacent sub-pixel openings of the second color sub-pixel 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. Each sub-pixel opening includes an arc segment and a straight line segment connecting the two endpoints 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 of the sub-pixel openings of the third color sub-pixel on the substrate includes a fan shape. The plurality of 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 any one of claims 35-50, wherein, The arc segments of the openings of each of the sub-pixels of the third color sub-pixel are located on the same virtual circle, or the arc segments of the openings of each of the sub-pixels of the third color sub-pixel are located on the same virtual ellipse, or the circles containing the arc segments of the openings of each of the sub-pixels of the third color sub-pixel have the same diameter.

52. The display substrate according to any one of claims 35-51, wherein, The orthographic projection of the pixel opening of the third color sub-pixel onto the substrate is greater than the orthographic projection of the pixel opening of the first color sub-pixel and the second color sub-pixel onto the substrate.

53. The display substrate according to any one of claims 35-52, further comprising a black matrix layer, wherein, Each sub-pixel further includes a clearance opening located in the black matrix layer, wherein the pixel opening of each sub-pixel falls within the orthographic projection of the clearance opening onto the substrate. The avoidance opening of the third color sub-pixel includes a plurality of sub-avoidance openings. The orthographic projection of one of the sub-pixel openings of the third color sub-pixel onto the substrate is located within the orthographic projection of one of the sub-avoidance openings onto the substrate. The sub-pixel opening of the third color sub-pixel and the sub-avoidance opening have the same shape.

54. The display substrate according to claim 53, wherein, The pixel opening of the first color sub-pixel includes two sub-pixel openings, and the two sub-pixel openings of the first color sub-pixel are located within the same clearance opening in the orthographic projection of the substrate, and / or The pixel opening of the second color sub-pixel includes two sub-pixel openings, and the two sub-pixel openings of the second color sub-pixel are located in the same orthographic projection of the substrate, where the clearance opening is within the orthographic projection of the substrate.

55. The display substrate according to any one of claims 22-54, wherein, The ratio of the area of ​​the pixel opening of the third color sub-pixel in each sub-pixel group projected onto the substrate to the total area of ​​all pixel openings in the sub-pixel group projected onto the substrate ranges from 40% to 60%.

56. A pixel arrangement structure, comprising: Multiple 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 sides facing each other. The extension direction of at least one of the pair of adjacent sides 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 pairs 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, the polygon including 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, wherein, The first color sub-pixel block includes two first color sub-pixel sub-blocks, each of which includes a pair of adjacent edges facing each other. At least one of the adjacent edges of the first color sub-pixel block extends in a direction that 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.

60. The pixel arrangement structure according to claim 59, wherein, The pair of adjacent edges of the first color sub-pixel block, the pair of adjacent edges of the second color sub-pixel block, and the pair of adjacent edges 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 also greater than the sum of the areas of the two second-color sub-pixel sub-blocks. The first color sub-pixel sub-block has a triangular shape, the second color sub-pixel sub-block has a triangular shape, and the third color sub-pixel sub-block has a trapezoidal shape.

62. A display device comprising a display substrate according to any one of claims 1-21 or a display substrate according to any one of claims 22-55.

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