Display substrate and display device

Abstract

The utility model discloses a display substrate and a display device. In the display substrate, a plurality of first openings are defined by a pixel defining layer; the isolation structure is arranged on the side, away from the substrate, of the pixel defining layer and defines a plurality of second openings, and the orthographic projection of one first opening on the main surface of the substrate is located in the orthographic projection range of one second opening on the backboard; the second electrode comprises a first part located in the second opening, and a second electric signal is applied to the first part of the second electrode; the plurality of sub-isolation structures comprise a first sub-isolation structure and a second sub-isolation structure which are separated from each other and are disconnected; the first part of the second electrode comprises a first sub-electrode and a second sub-electrode which are respectively positioned in different second openings and are disconnected from each other; the first sub-electrode is electrically connected with the first sub-isolation structure, and the second sub-electrode is electrically connected with the second sub-isolation structure.

Description

Technical Field

[0001] At least one embodiment of the present utility model relates to a display substrate and a display device. Background Art

[0002] An OLED (Organic Light Emitting Diode) display device is a display device made of organic electroluminescent diodes. The OLED display device has excellent characteristics such as no need for a backlight source, high contrast ratio, thin thickness, wide viewing angle, fast response speed, can be used for flexible panels, wide operating temperature range, simple structure and manufacturing process, and is currently widely used.

[0003] In an OLED display device, a conductive isolation column can be provided as an auxiliary electrode, and the cathodes of multiple sub-pixels are electrically connected through the isolation column, which can reduce the resistance of the cathode. Summary of the Utility Model

[0004] At least one embodiment of the present utility model provides a display substrate, which includes: a substrate, a pixel definition layer, a first electrode, an isolation structure, and a second electrode. The substrate has a main surface; the pixel definition layer is disposed on the main surface of the substrate and defines a plurality of first openings; the first electrode is disposed on the main surface of the substrate and is applied with a first electrical signal, and at least a part of the first electrode is exposed by the first openings; the isolation structure is disposed on a side of the pixel definition layer away from the substrate and defines a plurality of second openings; a positive projection of one of the first openings on the main surface of the substrate is located within a positive projection range of one of the second openings on the backplane; the second electrode includes a first part at least partially located in the second opening, and the first part of the second electrode is applied with a second electrical signal; the isolation structure includes a plurality of sub-isolation structures, and the plurality of sub-isolation structures include a first sub-isolation structure and a second sub-isolation structure that are spaced apart and disconnected from each other; the first part of the second electrode includes a first sub-electrode and a second sub-electrode that are respectively located in different second openings and are disconnected from each other; the first sub-electrode is electrically connected to the first sub-isolation structure, and the second sub-electrode is electrically connected to the second sub-isolation structure.

[0005] For example, in the display substrate provided by at least one embodiment of the present utility model, the second electrical signal includes a first sub-signal and a second sub-signal, the first sub-isolation structure is applied with the first sub-signal, the second sub-isolation structure is applied with the second sub-signal, and the values of the first sub-signal and the second sub-signal are different.

[0006] For example, in the display substrate provided by at least one embodiment of the present utility model, a difference between the second electrical signal and the first sub-signal is different from a difference between the second electrical signal and the second sub-signal.

[0007] For example, in the display substrate provided by at least one embodiment of the present utility model, the isolation structure further includes a third sub-isolation structure, and the third sub-isolation structure is spaced apart from both the first sub-isolation structure and the second sub-isolation structure; the second electrical signal further includes a third sub-signal, the third sub-isolation structure is applied with the third sub-signal, and the values of the first sub-signal, the second sub-signal, and the third sub-signal are different from each other; the difference between the second electrical signal and the first sub-signal, the difference between the second electrical signal and the second sub-signal, and the difference between the second electrical signal and the third sub-signal are different from each other; the isolation structure includes a plurality of the first sub-isolation structures, a plurality of the second sub-isolation structures, and a plurality of the third sub-isolation structures, and the plurality of the first sub-isolation structures are electrically connected to each other, the plurality of the second sub-isolation structures are electrically connected to each other, and the plurality of the third sub-isolation structures are electrically connected to each other.

[0008] For example, in the display substrate provided by at least one embodiment of the present utility model, the display substrate includes a plurality of sub-pixels arranged in an array, the plurality of sub-pixels include a first sub-pixel, a second sub-pixel, and a third sub-pixel, and the first sub-isolation structure, the second sub-isolation structure, and the third sub-isolation structure are respectively located in the first sub-pixel, the second sub-pixel, and the third sub-pixel; the first opening includes a first sub-opening, a second sub-opening, and a third sub-opening; the first sub-pixel includes a first light-emitting region at least partially located in the first sub-opening; the second sub-pixel includes a second light-emitting region at least partially located in the second sub-opening; the third sub-pixel includes a third light-emitting region at least partially located in the third sub-opening.

[0009] For example, in the display substrate provided by at least one embodiment of the present utility model, the first sub-pixel emits light of a first color, the second sub-pixel emits light of a second color, the third sub-pixel emits light of a third color, and the first color, the second color, and the third color are different from each other.

[0010] For example, in the display substrate provided by at least one embodiment of the present utility model, the distance between the adjacent first sub-isolation structure and the second sub-isolation structure is a first distance, the distance between the adjacent first sub-isolation structure and the third sub-isolation structure is a second distance, and the distance between the adjacent second sub-isolation structure and the third sub-isolation structure is a third distance; in the same plane parallel to the main surface of the substrate, at least two of the lateral distances of the first distance, the lateral distance of the second distance, and the lateral distance of the third distance are different, and the lateral direction is the direction parallel to the main surface of the substrate.

[0011] For example, in the display substrate provided by at least one embodiment of the present utility model, the display substrate includes a pixel array, the pixel array includes a plurality of pixel units arranged in an array, at least one of the pixel units includes one of the second sub-pixels, two of the first sub-pixels respectively located on both sides of the one second sub-pixel in a first direction, and two of the third sub-pixels respectively located on both sides of the one second sub-pixel in a second direction; the two first sub-pixels are respectively a No. 1 first sub-pixel and a No. 2 first sub-pixel, the two third sub-pixels are respectively a No. 1 third sub-pixel and a No. 2 third sub-pixel, the No. 1 first sub-pixel and the No. 2 third sub-pixel are arranged in a row direction, the No. 2 first sub-pixel and the No. 2 third sub-pixel are arranged in a column direction, the row direction is perpendicular to the column direction and both intersect with the first direction and the second direction; the distance between the center of the first light-emitting region of the No. 1 first sub-pixel and the center of the second light-emitting region of the one second sub-pixel is less than the distance between the center of the first light-emitting region of the No. 2 first sub-pixel and the center of the second light-emitting region of the one second sub-pixel, and the distance between the center of the first light-emitting region of the No. 1 first sub-pixel and the center of the second light-emitting region of the No. 2 third sub-pixel is less than the distance between the center of the first light-emitting region of the No. 2 first sub-pixel and the center of the third light-emitting region of the No. 1 third sub-pixel; the pixel array includes four second sub-pixels surrounding the No. 1 first sub-pixel and adjacent to the No. 1 first sub-pixel, which are respectively a No. 1 second sub-pixel, a No. 2 second sub-pixel, a No. 3 second sub-pixel and a No. 4 second sub-pixel arranged in counterclockwise order; the No. 4 second sub-pixel, the No. 1 first sub-pixel and the No. 2 second sub-pixel are arranged in the first direction, and the No. 1 second sub-pixel, the No. 1 first sub-pixel and the No. 3 second sub-pixel are arranged in the second direction; the distance between the center of the second light-emitting region of the No. 1 second sub-pixel and the center of the first light-emitting region of the No. 1 first sub-pixel is equal to the distance between the center of the second light-emitting region of the No. 4 second sub-pixel and the center of the first light-emitting region of the No. 1 first sub-pixel, the distance between the center of the second light-emitting region of the No. 2 second sub-pixel and the center of the first light-emitting region of the No. 1 first sub-pixel is equal to the distance between the center of the second light-emitting region of the No. 3 second sub-pixel and the center of the first light-emitting region of the No. 1 first sub-pixel, and the distance between the center of the second light-emitting region of the No. 1 second sub-pixel and the center of the first light-emitting region of the No. 1 first sub-pixel is greater than the distance between the center of the second light-emitting region of the No. 2 second sub-pixel and the center of the first light-emitting region of the No. 1 first sub-pixel.

[0012] For example, in the display substrate provided by at least one embodiment of the present utility model, the distance between the first sub-isolation structure of the first sub-pixel No. 1 and the second sub-isolation structure of one of the second sub-pixels is less than the distance between the first sub-isolation structure of the first sub-pixel No. 2 and the second sub-isolation structure of one of the second sub-pixels, and the distance between the first sub-isolation structure of the first sub-pixel No. 1 and the third sub-isolation structure of the third sub-pixel No. 2 is less than the distance between the first sub-isolation structure of the first sub-pixel No. 2 and the third sub-isolation structure of the third sub-pixel No. 1.

[0013] For example, in the display substrate provided by at least one embodiment of the present utility model, each of at least some of the plurality of sub-pixels respectively includes a corresponding sub-isolation structure and a second opening; the distance between the centers of the second openings of the first sub-pixel No. 1 and one of the second sub-pixels is less than the distance between the centers of the second openings of the first sub-pixel No. 2 and one of the second sub-pixels, and the distance between the centers of the second openings of the first sub-pixel No. 1 and the second sub-pixel No. 3 is less than the distance between the centers of the second openings of the first sub-pixel No. 2 and the second sub-pixel No. 1; the distance between the centers of the second openings of the second sub-pixel No. 1 and the second opening of the first sub-pixel No. 1 is equal to the distance between the centers of the second openings of the second sub-pixel No. 4 and the second opening of the first sub-pixel No. 1, the distance between the centers of the second openings of the second sub-pixel No. 2 and the second opening of the first sub-pixel No. 1 is equal to the distance between the centers of the second openings of the second sub-pixel No. 3 and the second opening of the first sub-pixel No. 1, and the distance between the centers of the second openings of the second sub-pixel No. 1 and the second opening of the first sub-pixel No. 1 is greater than the distance between the centers of the second openings of the second sub-pixel No. 2 and the second opening of the first sub-pixel No. 1.

[0014] For example, in the display substrate provided by at least one embodiment of the present utility model, the distance in the second direction between the second sub-isolation structure of the second sub-pixel No. 1 and the first sub-isolation structure of the first sub-pixel No. 1 is L1, the distance in the first direction between the second sub-isolation structure of the second sub-pixel No. 4 and the first sub-isolation structure of the first sub-pixel No. 1 is L4, the distance in the first direction between the second sub-isolation structure of the second sub-pixel No. 2 and the first sub-isolation structure of the first sub-pixel No. 1 is L2, and the distance in the second direction between the second sub-isolation structure of the second sub-pixel No. 3 and the first sub-isolation structure of the first sub-pixel No. 1 is L3, satisfying L1 = L4 > L2 = L3.

[0015] For example, in the display substrate provided by at least one embodiment of the present utility model, the pixel array includes four third sub-pixels that surround the first sub-pixel No. 1 and are adjacent to the first sub-pixel No. 1, which are the third sub-pixel No. 1, the third sub-pixel No. 2, the third sub-pixel No. 3, and the third sub-pixel No. 4 arranged in counterclockwise order; the third sub-pixel No. 1, the first sub-pixel No. 1, and the third sub-pixel No. 3 are arranged in sequence in the row direction, and the third sub-pixel No. 4, the first sub-pixel No. 1, and the third sub-pixel No. 2 are arranged in sequence in the column direction; the distance between the first sub-isolation structure of the first sub-pixel No. 1 and the third sub-isolation structure of the third sub-pixel No. 4 is L5, the distance between the first sub-isolation structure of the first sub-pixel No. 1 and the third sub-isolation structure of the third sub-pixel No. 2 is L6, the distance between the first sub-isolation structure of the first sub-pixel No. 1 and the third sub-isolation structure of the third sub-pixel No. 3 is L7, and the distance between the first sub-isolation structure of the first sub-pixel No. 1 and the third sub-isolation structure of the third sub-pixel No. 1 is L8, satisfying L5 > L6 > L7 = L8.

[0016] For example, in the display substrate provided by at least one embodiment of the present utility model, the pixel array includes multiple rows of sub-pixels extending in the row direction and multiple columns of sub-pixels extending in the column direction. The first ends of the second light-emitting regions of multiple second sub-pixels located in the same row extending in the row direction are all on the same straight line extending in the column direction, and the second ends of the second light-emitting regions of multiple second sub-pixels located in the same row extending in the row direction, which are opposite to the first ends, are all on the same straight line extending in the row direction; among adjacent two rows of second sub-pixels, the distances between the centers of the light-emitting regions of the second sub-pixels located in each column are all equal; the centers of the first light-emitting regions of the first sub-pixels and the centers of the third light-emitting regions of the third sub-pixels located in the same row extending in the row direction are on the same straight line extending in the row direction; the centers of the first light-emitting regions of the first sub-pixels and the centers of the third light-emitting regions of the third sub-pixels located in the same column extending in the column direction are not on the same straight line extending in the column direction.

[0017] For example, in the display substrate provided by at least one embodiment of the present utility model, among a plurality of the second sub-pixels located in the same row extending along the row direction, first ends of second openings of the plurality of the second sub-pixels in the column direction are all on the same straight line extending along the row direction, and second ends of the second openings of the plurality of the second sub-pixels in the column direction, which are opposite to the first ends, are all on the same straight line extending along the row direction; among adjacent two rows of the second sub-pixels, distances between centers of second openings of the second sub-pixels located in each column are all equal; centers of second openings of the first sub-pixel and the third sub-pixel located in the same row extending along the row direction are on the same straight line extending along the row direction; centers of second openings of the first sub-pixel and the third sub-pixel located in the same column extending along the column direction are not on the same straight line extending along the column direction.

[0018] For example, in the display substrate provided by at least one embodiment of the present utility model, among a plurality of the second sub-pixels located in the same row extending along the row direction, two ends of second light-emitting regions of the plurality of the second sub-pixels located in odd-numbered columns are respectively aligned with each other in the column direction, and two ends of second light-emitting regions of the plurality of the second sub-pixels located in even-numbered columns are respectively aligned with each other in the column direction; for the plurality of the second sub-pixels located in the same row, first ends of second light-emitting regions of two adjacent second sub-pixels are not aligned with each other and second ends of the second light-emitting regions of the two adjacent second sub-pixels are not aligned with each other in the column direction; for adjacent two rows of the second sub-pixels extending along the row direction, distances between centers of second light-emitting regions of two adjacent second sub-pixels in adjacent columns are not equal in the column direction.

[0019] For example, in the display substrate provided by at least one embodiment of the present utility model, among a plurality of the second sub-pixels located in the same row extending along the row direction, two ends of second openings of the plurality of the second sub-pixels located in odd-numbered columns are respectively aligned with each other in the column direction, and two ends of second openings of the plurality of the second sub-pixels located in even-numbered columns are respectively aligned with each other in the column direction; for adjacent two rows of the second sub-pixels extending along the row direction, distances between centers of second openings of two adjacent second sub-pixels in adjacent columns are not equal in the column direction.

[0020] For example, in the display substrate provided by at least one embodiment of the present utility model, a distance between the center of the second opening of the second sub-pixel No. 2 and the center of the second opening of the second sub-pixel No. 3 in the column direction is greater than a distance between the center of the second opening of the first sub-pixel and the center of the second opening of the fourth sub-pixel in the column direction.

[0021] For example, in the display substrate provided by at least one embodiment of the present utility model, a plurality of the second sub-pixels in the same column include three second sub-pixels arranged in sequence and continuously. Among the three second sub-pixels, the distance in the column direction between the centers of the light-emitting regions of the first second sub-pixel and the second second sub-pixel is less than the distance in the column direction between the centers of the light-emitting regions of the second second sub-pixel and the third second sub-pixel; the distance in the column direction between the second sub-isolation structure of the first second sub-pixel and the second sub-isolation structure of the second second sub-pixel is less than the distance in the column direction between the second sub-isolation structure of the second second sub-pixel and the second sub-isolation structure of the third second sub-pixel.

[0022] For example, in the display substrate provided by at least one embodiment of the present utility model, the distance in the first direction between the second sub-isolation structure of a second sub-pixel and the third sub-isolation structure of a third sub-pixel, which are arranged adjacent to each other in the first direction, is not equal to the distance in the row direction between the second sub-isolation structures of two adjacent second sub-pixels arranged in the row direction.

[0023] For example, in the display substrate provided by at least one embodiment of the present utility model, the distance in the first direction between the second sub-isolation structure of a second sub-pixel and the third sub-isolation structure of a third sub-pixel, which are arranged adjacent to each other in the first direction, is not equal to the distance in the first direction between the second sub-isolation structure of a second sub-pixel and the third sub-isolation structure of a third sub-pixel, which are arranged adjacent to each other in the second direction.

[0024] For example, in the display substrate provided by at least one embodiment of the present utility model, the display substrate includes a pixel array, the pixel array includes a plurality of pixel units arranged in an array, at least one of the pixel units includes one of the second sub-pixels, two of the first sub-pixels respectively located on both sides of the one second sub-pixel in the first direction, and two of the third sub-pixels respectively located on both sides of the one second sub-pixel in the second direction; the two first sub-pixels are respectively the No. 1 first sub-pixel and the No. 2 first sub-pixel, the two third sub-pixels are respectively the No. 1 third sub-pixel and the No. 2 third sub-pixel, the No. 1 first sub-pixel and the No. 2 third sub-pixel are arranged in the row direction, the No. 2 first sub-pixel and the No. 2 third sub-pixel are arranged in the column direction, the row direction is perpendicular to the column direction and both intersect with the first direction and the second direction; the distance between the center of the first light-emitting region of the No. 1 first sub-pixel and the center of the second light-emitting region of the one second sub-pixel is equal to the distance between the center of the first light-emitting region of the No. 2 first sub-pixel and the center of the second light-emitting region of the one second sub-pixel, the distance between the center of the first light-emitting region of the No. 1 first sub-pixel and the center of the second light-emitting region of the No. 2 third sub-pixel is equal to the distance between the center of the first light-emitting region of the No. 2 first sub-pixel and the center of the third light-emitting region of the No. 1 third sub-pixel, the distance between the center of the first light-emitting region of the No. 1 first sub-pixel and the center of the second light-emitting region of the No. 1 third sub-pixel is equal to the distance between the center of the first light-emitting region of the No. 2 first sub-pixel and the center of the third light-emitting region of the No. 2 third sub-pixel; the pixel array includes four of the second sub-pixels that surround and are adjacent to the No. 1 first sub-pixel, which are respectively the No. 1 second sub-pixel, the No. 2 second sub-pixel, the No. 3 second sub-pixel and the No. 4 second sub-pixel arranged in counterclockwise order; the No. 4 second sub-pixel, the No. 1 first sub-pixel and the No. 2 second sub-pixel are arranged in the first direction, the No. 1 second sub-pixel, the No. 1 first sub-pixel and the No. 3 second sub-pixel are arranged in the second direction; the distance between the center of the second light-emitting region of the No. 1 second sub-pixel and the center of the first light-emitting region of the No. 1 first sub-pixel, the distance between the center of the second light-emitting region of the No. 2 second sub-pixel and the center of the first light-emitting region of the No. 1 first sub-pixel, the distance between the center of the second light-emitting region of the No. 3 second sub-pixel and the center of the first light-emitting region of the No. 1 first sub-pixel, and the distance between the center of the second light-emitting region of the No. 4 second sub-pixel and the center of the first light-emitting region of the No. 1 first sub-pixel are all equal; the distances between the sub-isolation structures of any two adjacent sub-pixels among the plurality of sub-pixels are equal to each other.

[0025] For example, in the display substrate provided by at least one embodiment of the present utility model, the distance between the center of the second opening of the first sub-pixel No. 1 and the center of the second light-emitting region of one of the second sub-pixels is equal to the distance between the center of the second opening of the first sub-pixel No. 2 and the center of the second opening of one of the second sub-pixels; the distance between the center of the second opening of the first sub-pixel No. 1 and the center of the second opening of the third sub-pixel No. 2 is equal to the distance between the center of the second opening of the first sub-pixel No. 2 and the center of the second opening of the third sub-pixel No. 1; the distance between the center of the second opening of the first sub-pixel No. 1 and the center of the second opening of the third sub-pixel No. 1 is equal to the distance between the center of the second opening of the first sub-pixel No. 2 and the center of the second opening of the third sub-pixel No. 2; the distances between the center of the second opening of the second sub-pixel No. 1 and the center of the second opening of the first sub-pixel No. 1, between the center of the second opening of the second sub-pixel No. 2 and the center of the second opening of the first sub-pixel No. 1, between the center of the second opening of the second sub-pixel No. 3 and the center of the second opening of the first sub-pixel No. 1, and between the center of the second opening of the second sub-pixel No. 4 and the center of the second opening of the first sub-pixel No. 1 are all equal.

[0026] For example, in the display substrate provided by at least one embodiment of the present utility model, the display substrate includes a pixel array, the pixel array includes multiple rows of sub-pixels extending in the row direction and multiple columns of sub-pixels extending in the column direction, and the multiple columns of sub-pixels include a first column of sub-pixels and a second column of sub-pixels adjacent to each other; one of the first sub-pixels and one of the second sub-pixels adjacent to each other located in the first column of sub-pixels, and one of the third sub-pixels located in the second column of sub-pixels form a pixel unit, and the pixel array includes multiple such pixel units arranged in an array; taking the plane perpendicular to the row direction as the reference plane, in one pixel unit, the orthographic projections of the first sub-pixel and the second sub-pixel on the reference plane at least partially overlap with the orthographic projection of the third sub-pixel on the reference plane; the distances between the sub-isolation structures of any two adjacent sub-pixels among the multiple sub-pixels are equal to or different from each other.

[0027] For example, in the display substrate provided by at least one embodiment of the present utility model, in one pixel unit, a first trapezoid is formed by sequentially connecting the centers of the first light-emitting regions of the two first sub-pixels and the centers of the third sub-light-emitting regions of the two third sub-pixels along the direction around one of the second sub-pixels, and the intersection point of the two diagonals of the first trapezoid is within the range of the second light-emitting region of the second sub-pixel being surrounded.

[0028] For example, in the display substrate provided by at least one embodiment of the present utility model, the first trapezoid is an isosceles trapezoid.

[0029] For example, in the display substrate provided by at least one embodiment of the present utility model, the upper base and the lower base of the first trapezoid extend along the row direction respectively. The line connecting the centers of the first light-emitting regions of the first sub-pixel No. 1 and the third light-emitting regions of the third sub-pixel No. 2 forms the upper base of the first trapezoid, and the line connecting the centers of the third light-emitting regions of the third sub-pixel No. 1 and the first light-emitting regions of the first sub-pixel No. 2 forms the lower base of the first trapezoid.

[0030] For example, in the display substrate provided by at least one embodiment of the present utility model, in one pixel unit, a figure formed by sequentially connecting the centers of the second openings of the two first sub-pixels and the centers of the second openings of the two third sub-pixels along the direction around one second sub-pixel is a third trapezoid, and the intersection point of the two diagonals of the third trapezoid is within the range of the second opening of the second sub-pixel being surrounded.

[0031] For example, in the display substrate provided by at least one embodiment of the present utility model, the third trapezoid is an isosceles trapezoid; the upper base and the lower base of the third trapezoid extend along the row direction respectively. The line connecting the centers of the second openings of the first sub-pixel No. 1 and the third sub-pixel No. 2 forms the upper base of the third trapezoid, and the line connecting the centers of the second openings of the third sub-pixel No. 1 and the first sub-pixel No. 2 forms the lower base of the third trapezoid.

[0032] For example, in the display substrate provided by at least one embodiment of the present utility model, a figure formed by sequentially connecting the centers of the second light-emitting regions of the second sub-pixel No. 1, the second light-emitting regions of the second sub-pixel P2 No. 2, the second light-emitting regions of the second sub-pixel P2 No. 3, and the second light-emitting regions of the second sub-pixel P2 No. 4 is a second trapezoid, and the intersection point of the two diagonals of the second trapezoid is within the range of the first light-emitting region of the first sub-pixel No. 1.

[0033] For example, in the display substrate provided by at least one embodiment of the present utility model, the second trapezoid is an isosceles trapezoid. The upper base and the lower base of the second trapezoid extend along the row direction respectively. The line connecting the centers of the second light-emitting regions of the second sub-pixel No. 1 and the second light-emitting regions of the second sub-pixel No. 2 forms the upper base of the second trapezoid, and the line connecting the centers of the second light-emitting regions of the second sub-pixel No. 3 and the second light-emitting regions of the second sub-pixel No. 4 forms the lower base of the second trapezoid.

[0034] For example, in the display substrate provided by at least one embodiment of the present utility model, a figure formed by sequentially connecting the centers of the second openings of the 1st second sub-pixel, the centers of the second openings of the 2nd second sub-pixel, the centers of the second openings of the 3rd second sub-pixel, and the centers of the second openings of the 4th second sub-pixel P2 is a fourth trapezoid, and the intersection of the two diagonals of the fourth trapezoid is within the range of the second opening of the 1st first sub-pixel.

[0035] For example, in the display substrate provided by at least one embodiment of the present utility model, the fourth trapezoid is an isosceles trapezoid, the upper base and the lower base of the fourth trapezoid extend along the row direction respectively, and the connection line between the center of the second opening of the 1st second sub-pixel and the center of the second opening of the 2nd second sub-pixel constitutes the upper base of the fourth trapezoid, and the connection line between the center of the second opening of the 3rd second sub-pixel and the center of the second opening of the 4th second sub-pixel constitutes the lower base of the fourth trapezoid.

[0036] For example, in the display substrate provided by at least one embodiment of the present utility model, for each of at least some of the multiple sub-pixels, the shape of the positive projection of the second opening of the sub-pixel on the main surface of the substrate is the same as the shape of the positive projection of the light-emitting area of the sub-pixel on the main surface of the substrate, and the center of the positive projection of the second opening of the sub-pixel on the main surface of the substrate substantially coincides with the center of the positive projection of the light-emitting area of the sub-pixel on the main surface of the substrate.

[0037] For example, in the display substrate provided by at least one embodiment of the present utility model, the range of the minimum resolution (Pixels Per Inch, PPI) of the display substrate is 400 - 800, and the distance between the sub-isolation structures of two adjacent sub-pixels among the multiple sub-pixels is greater than or equal to 3 μm and less than or equal to 10 μm.

[0038] For example, in the display substrate provided by at least one embodiment of the present utility model, multiple second sub-isolation structures are electrically connected to each other through a first connection structure, the first connection structure is arranged on the same layer as the second sub-isolation structure and forms a continuous integral structure; multiple first sub-isolation structures are electrically connected to each other through the second connection structure, the second connection structure is arranged on a different layer from the first sub-isolation structure; multiple third sub-isolation structures are electrically connected to each other through the third connection structure, the third connection structure is arranged on a different layer from the third sub-isolation structure.

[0039] For example, in the display substrate provided by at least one embodiment of the present utility model, the first connection structure includes a first sub-connection structure connecting two adjacent second sub-isolation structures in the same row of sub-pixels or a second sub-connection structure connecting two adjacent second sub-isolation structures in the same column of pixels.

[0040] For example, in the display substrate provided by at least one embodiment of the present utility model, the first connection structure includes a first sub-connection structure connecting two adjacent second sub-isolation structures in the same row of sub-pixels and a second sub-connection structure connecting two adjacent second sub-isolation structures in the same column of pixels.

[0041] For example, in the display substrate provided by at least one embodiment of the present utility model, the first sub-connection structure is in a strip shape extending along the row direction, and the second sub-isolation structure is in a strip shape extending along the column direction.

[0042] For example, in the display substrate provided by at least one embodiment of the present utility model, the second connection structure and the third connection structure are located on a side of the isolation structure close to the substrate.

[0043] For example, in the display substrate provided by at least one embodiment of the present utility model, for each of at least some of the sub-isolation structures, the sub-isolation structure includes a main body portion and an upper portion, the upper portion is located on a side of the main body portion away from the substrate, and a positive projection of the main body portion on the substrate is located within a projection of the upper portion on the substrate; a first portion of the second electrode is in direct contact with a side wall of the main body portion.

[0044] For example, in the display substrate provided by at least one embodiment of the present utility model, the display substrate further includes a light-emitting layer, the light-emitting layer includes a plurality of sub-light-emitting layers, at least a part of each of the sub-light-emitting layers is sandwiched between the first electrode and the first portion of the second electrode to be configured to emit light under the action of the first electrical signal and the second electrical signal; the plurality of sub-light-emitting layers include a first sub-light-emitting layer located in the first light-emitting region and emitting light of the first color, a second sub-light-emitting layer located in the second light-emitting region and emitting light of the second color, and a third sub-light-emitting layer located in the third light-emitting region and emitting light of the third color; in each of at least some of the plurality of sub-pixels, there is a gap between the sub-isolation structure and the sub-light-emitting layer, and the first portion of the second electrode includes a filling portion filled in the gap, and the filling portion separates the sub-light-emitting layer from the sub-isolation structure.

[0045] For example, in the display substrate provided by at least one embodiment of the present utility model, the filling portion is in direct contact with a side wall of the main body portion.

[0046] For example, in the display substrate provided by at least one embodiment of the present utility model, each of at least some of the sub-isolation structures further includes a lower portion, the lower portion being located on a side of the main body portion close to the substrate, and a positive projection of the main body portion on the substrate being located within a projection of the lower portion on the substrate; the lower portion is conductive and is applied with the second electrical signal, the lower portion having an upper surface facing away from the substrate and a side surface intersecting with the upper surface; a first portion of the second electrode further includes an edge portion covering the upper surface of the lower portion, the edge portion being in direct contact with both a side wall of the main body portion and the upper surface of the lower portion, and the filling portion being in direct contact with the side surface of the lower portion and the pixel contact top layer.

[0047] For example, in the display substrate provided by at least one embodiment of the present utility model, a shape of a cross-section of the main body portion along a direction perpendicular to a main surface of the substrate is a trapezoid or a rectangle; a shape of a cross-section of the entire sub-isolation structure along a direction perpendicular to the main surface of the substrate is an "I" shape.

[0048] For example, in the display substrate provided by at least one embodiment of the present utility model, the isolation structure includes a conductive material, and an activity of the conductive material of the isolation structure is weaker than an activity of a material of the second electrode.

[0049] For example, in the display substrate provided by at least one embodiment of the present utility model, the conductive material is a metal material, the metal material of the isolation structure includes at least one of aluminum, copper, silver, titanium, and molybdenum; the second electrode includes a metal material, and the metal material of the second electrode includes at least one of aluminum, silver, and magnesium.

[0050] At least one embodiment of the present utility model further provides a display substrate, which includes a pixel array. The pixel array includes a plurality of sub-pixels arranged in an array. The plurality of sub-pixels include a first sub-pixel, a second sub-pixel, and a third sub-pixel. The plurality of sub-pixels form a plurality of pixel units. At least one of the pixel units includes one of the second sub-pixels and two first sub-pixels and two third sub-pixels surrounding the one second sub-pixel. In one pixel unit, a figure formed by sequentially connecting the centers of the first light-emitting regions of the two first sub-pixels and the centers of the third sub-light-emitting regions of the two third sub-pixels along the direction of surrounding one second sub-pixel is a first trapezoid. The intersection point of the two diagonals of the first trapezoid is within the range of the second light-emitting region of the one second sub-pixel surrounded. The display substrate further includes: a pixel defining layer, a first electrode, and an isolation structure. The pixel defining layer is disposed on the main surface of the substrate and defines a plurality of first openings. The first electrode is disposed on the main surface of the substrate and is applied with a first electrical signal. At least a part of the first electrode is exposed by the first opening. The isolation structure is disposed on a side of the pixel defining layer away from the substrate and defines a plurality of second openings.

[0051] For example, in the display substrate provided by at least one embodiment of the present utility model, the first trapezoid is an isosceles trapezoid.

[0052] For example, in the display substrate provided by at least one embodiment of the present utility model, in one pixel unit, the two first sub-pixels are respectively located on two sides of the one second sub-pixel in a first direction, and the two third sub-pixels are respectively located on two sides of the one second sub-pixel in a second direction. The two first sub-pixels are respectively a No. 1 first sub-pixel and a No. 2 first sub-pixel, and the two third sub-pixels are respectively a No. 1 third sub-pixel and a No. 2 third sub-pixel. The No. 1 first sub-pixel and the No. 2 third sub-pixel are arranged in a row direction, and the No. 2 first sub-pixel and the No. 1 third sub-pixel are arranged in a column direction. The row direction and the column direction are perpendicular and both intersect with the first direction and the second direction. The upper base and the lower base of the first trapezoid extend along the row direction. The connection line between the center of the first light-emitting region of the No. 1 first sub-pixel and the center of the third light-emitting region of the No. 2 third sub-pixel forms the upper base of the first trapezoid, and the connection line between the center of the third light-emitting region of the No. 1 third sub-pixel and the center of the first light-emitting region of the No. 2 first sub-pixel forms the lower base of the first trapezoid.

[0053] For example, in the display substrate provided by at least one embodiment of the present utility model, in one pixel unit, a third trapezoid is formed by sequentially connecting the centers of the second openings of the two first sub-pixels and the centers of the second openings of the two third sub-pixels along the direction around one second sub-pixel, and the intersection of the two diagonals of the third trapezoid is within the range of the second opening of the one second sub-pixel being surrounded.

[0054] For example, in the display substrate provided by at least one embodiment of the present utility model, the third trapezoid is an isosceles trapezoid; the upper base and the lower base of the third trapezoid extend along the row direction, and the connection line between the center of the second opening of the No. 1 first sub-pixel and the center of the second opening of the No. 2 third sub-pixel forms the upper base of the third trapezoid, and the connection line between the center of the second opening of the No. 1 third sub-pixel and the center of the second opening of the No. 2 first sub-pixel forms the lower base of the third trapezoid.

[0055] For example, in the display substrate provided by at least one embodiment of the present utility model, the distance between the center of the first light-emitting region of the No. 1 first sub-pixel and the center of the second light-emitting region of the one second sub-pixel is less than the distance between the center of the first light-emitting region of the No. 2 first sub-pixel and the center of the second light-emitting region of the one second sub-pixel, and the distance between the center of the first light-emitting region of the No. 1 first sub-pixel and the center of the second light-emitting region of the No. 2 third sub-pixel is less than the distance between the center of the first light-emitting region of the No. 2 first sub-pixel and the center of the third light-emitting region of the No. 1 third sub-pixel; the pixel array includes four second sub-pixels that surround the No. 1 first sub-pixel and are adjacent to the No. 1 first sub-pixel, which are the No. 1 second sub-pixel, the No. 2 second sub-pixel, the No. 3 second sub-pixel, and the No. 4 second sub-pixel arranged in counterclockwise order; the No. 4 second sub-pixel, the No. 1 first sub-pixel, and the No. 2 second sub-pixel are arranged in the first direction, and the No. 1 second sub-pixel, the No. 1 first sub-pixel, and the No. 3 second sub-pixel are arranged in the second direction; the distance between the center of the second light-emitting region of the No. 1 second sub-pixel and the center of the first light-emitting region of the No. 1 first sub-pixel is equal to the distance between the center of the second light-emitting region of the No. 4 second sub-pixel and the center of the first light-emitting region of the No. 1 first sub-pixel, the distance between the center of the second light-emitting region of the No. 2 second sub-pixel and the center of the first light-emitting region of the No. 1 first sub-pixel is equal to the distance between the center of the second light-emitting region of the No. 3 second sub-pixel and the center of the first light-emitting region of the No. 1 first sub-pixel, and the distance between the center of the second light-emitting region of the No. 1 second sub-pixel and the center of the first light-emitting region of the No. 1 first sub-pixel is greater than the distance between the center of the second light-emitting region of the No. 2 second sub-pixel and the center of the first light-emitting region of the No. 1 first sub-pixel.

[0056] For example, in the display substrate provided by at least one embodiment of the present invention, the distance between the first sub-isolation structure of the first sub-pixel No. 1 and the second sub-isolation structure of one of the second sub-pixels is less than the distance between the first sub-isolation structure of the first sub-pixel No. 2 and the second sub-isolation structure of one of the second sub-pixels, and the distance between the first sub-isolation structure of the first sub-pixel No. 1 and the third sub-isolation structure of the third sub-pixel No. 2 is less than the distance between the first sub-isolation structure of the first sub-pixel No. 2 and the third sub-isolation structure of the third sub-pixel No. 1.

[0057] For example, in the display substrate provided by at least one embodiment of the present invention, the orthographic projection of one of the first openings on the main surface of the substrate is located within the orthographic projection range of one of the second openings on the backplane; each of at least some of the multiple sub-pixels respectively includes a corresponding sub-isolation structure and the second opening; the distance between the centers of the second openings of the first sub-pixel No. 1 and one of the second sub-pixels is less than the distance between the centers of the second openings of the first sub-pixel No. 2 and one of the second sub-pixels, and the distance between the centers of the second openings of the first sub-pixel No. 1 and the second openings of the third sub-pixel No. 2 is less than the distance between the centers of the second openings of the first sub-pixel No. 2 and the second openings of the third sub-pixel No. 1; the distance between the centers of the second openings of the second sub-pixel No. 1 and the second openings of the first sub-pixel No. 1 is equal to the distance between the centers of the second openings of the second sub-pixel No. 4 and the second openings of the first sub-pixel No. 1, the distance between the centers of the second openings of the second sub-pixel No. 2 and the second openings of the first sub-pixel No. 1 is equal to the distance between the centers of the second openings of the second sub-pixel No. 3 and the second openings of the first sub-pixel No. 1, and the distance between the centers of the second openings of the second sub-pixel No. 1 and the second openings of the first sub-pixel No. 1 is greater than the distance between the centers of the second openings of the second sub-pixel No. 2 and the second openings of the first sub-pixel No. 1.

[0058] For example, in the display substrate provided by at least one embodiment of the present utility model, the display substrate includes a substrate having a main surface, and a pixel array disposed on the main surface of the substrate; a positive projection of one of the first openings on the main surface of the substrate is located within a positive projection range of one of the second openings on the backplane; the display substrate further includes a second electrode, the second electrode includes a first portion at least partially located within the second opening, and the first portion of the second electrode is applied with a second electrical signal; the isolation structure includes a plurality of sub-isolation structures, and the plurality of sub-isolation structures include a first sub-isolation structure and a second sub-isolation structure that are spaced apart from and disconnected from each other; the first portion of the second electrode includes a first sub-electrode and a second sub-electrode that are respectively located in different second openings and are disconnected from each other; the first sub-electrode is electrically connected to the first sub-isolation structure, and the second sub-electrode is electrically connected to the second sub-isolation structure.

[0059] For example, in the display substrate provided by at least one embodiment of the present utility model, the second electrical signal includes a first sub-signal and a second sub-signal, the first sub-isolation structure is applied with the first sub-signal, the second sub-isolation structure is applied with the second sub-signal, and the values of the first sub-signal and the second sub-signal are different.

[0060] For example, in the display substrate provided by at least one embodiment of the present utility model, a difference between the second electrical signal and the first sub-signal is different from a difference between the second electrical signal and the second sub-signal.

[0061] For example, in the display substrate provided by at least one embodiment of the present utility model, the isolation structure further includes a third sub-isolation structure, and the third sub-isolation structure is spaced apart from both the first sub-isolation structure and the second sub-isolation structure; the second electrical signal further includes a third sub-signal, the third sub-isolation structure is applied with the third sub-signal, and the values of the first sub-signal, the second sub-signal, and the third sub-signal are different from each other; a difference between the second electrical signal and the first sub-signal, a difference between the second electrical signal and the second sub-signal, and a difference between the second electrical signal and the third sub-signal are different from each other; the isolation structure includes a plurality of the first sub-isolation structures, a plurality of the second sub-isolation structures, and a plurality of the third sub-isolation structures, the plurality of the first sub-isolation structures are electrically connected to each other, the plurality of the second sub-isolation structures are electrically connected to each other, and the plurality of the third sub-isolation structures are electrically connected to each other.

[0062] For example, in the display substrate provided by at least one embodiment of the present utility model, the first sub-isolation structure, the second sub-isolation structure, and the third sub-isolation structure are respectively located in the first sub-pixel, the second sub-pixel, and the third sub-pixel; the first opening includes a first sub-opening, a second sub-opening, and a third sub-opening; at least a part of the first light-emitting region of the first sub-pixel is located in the first sub-opening; at least a part of the second light-emitting region of the second sub-pixel is located in the second sub-opening, and the second sub-isolation structure surrounds the second light-emitting region; at least a part of the third light-emitting region of the third sub-pixel is located in the third sub-opening, and the third sub-isolation structure surrounds the third light-emitting region.

[0063] For example, in the display substrate provided by at least one embodiment of the present utility model, the first sub-pixel emits light of a first color, the second sub-pixel emits light of a second color, the third sub-pixel emits light of a third color, and the first color, the second color, and the third color are different from each other.

[0064] For example, in the display substrate provided by at least one embodiment of the present utility model, the distance between the adjacent first sub-isolation structure and the second sub-isolation structure is a first interval, the distance between the adjacent first sub-isolation structure and the third sub-isolation structure is a second interval, and the distance between the adjacent second sub-isolation structure and the third sub-isolation structure is a third interval; in the same plane parallel to the main surface of the substrate, at least two of the lateral distances of the first interval, the lateral distance of the second interval, and the lateral distance of the third interval are different, and the lateral direction is the direction parallel to the main surface of the substrate substrate.

[0065] For example, in the display substrate provided by at least one embodiment of the present utility model, the distance between the first sub-isolation structure of the No. 1 first sub-pixel and the second sub-isolation structure of the one second sub-pixel is less than the distance between the first sub-isolation structure of the No. 2 first sub-pixel and the second sub-isolation structure of the one second sub-pixel, and the distance between the first sub-isolation structure of the No. 1 first sub-pixel and the third sub-isolation structure of the No. 2 third sub-pixel is less than the distance between the first sub-isolation structure of the No. 2 first sub-pixel and the third sub-isolation structure of the No. 1 third sub-pixel.

[0066] For example, in the display substrate provided by at least one embodiment of the present invention, the distance between the second sub-isolation structure of the No. 1 second sub-pixel and the first sub-isolation structure of the No. 1 first sub-pixel in the second direction is L1, the distance between the second sub-isolation structure of the No. 4 second sub-pixel and the first sub-isolation structure of the No. 1 first sub-pixel in the first direction is L4, the distance between the second sub-isolation structure of the No. 2 second sub-pixel and the first sub-isolation structure of the No. 1 first sub-pixel in the first direction is L2, and the distance between the second sub-isolation structure of the No. 3 second sub-pixel and the first sub-isolation structure of the No. 1 first sub-pixel in the second direction is L3, satisfying L1 = L4 > L2 = L3.

[0067] For example, in the display substrate provided by at least one embodiment of the present invention, the pixel array includes four third sub-pixels surrounding and adjacent to the No. 1 first sub-pixel, namely the No. 1 third sub-pixel, the No. 2 third sub-pixel, the No. 3 third sub-pixel, and the No. 4 third sub-pixel arranged in counterclockwise order; the No. 1 third sub-pixel, the No. 1 first sub-pixel, and the No. 3 third sub-pixel are arranged in sequence in the column direction, and the No. 4 third sub-pixel, the No. 1 first sub-pixel, and the No. 2 third sub-pixel are arranged in sequence in the column direction; the distance between the center of the first light-emitting region of the No. 1 first sub-pixel and the center of the third light-emitting region of the No. 4 third sub-pixel is L5, the distance between the center of the first light-emitting region of the No. 1 first sub-pixel and the center of the third light-emitting region of the No. 2 third sub-pixel is L6, the distance between the center of the first light-emitting region of the No. 1 first sub-pixel and the center of the third light-emitting region of the No. 3 third sub-pixel is L7, and the distance between the center of the first light-emitting region of the No. 1 first sub-pixel and the center of the third light-emitting region of the No. 1 third sub-pixel is L8, satisfying L5 > L6 > L7 = L8.

[0068] For example, in the display substrate provided by at least one embodiment of the present utility model, the pixel array includes multiple rows of sub-pixels extending along the row direction and multiple columns of sub-pixels extending along the column direction. The first ends of the second light-emitting regions of multiple second sub-pixels located in the same row extending along the row direction are all on the same straight line extending along the column direction, and the second ends of the second light-emitting regions of multiple second sub-pixels located in the same row extending along the row direction, which are opposite to their first ends, are all on the same straight line extending along the row direction; among two adjacent rows of second sub-pixels, the distances between the centers of the light-emitting regions of the second sub-pixels located in each column are all equal; the centers of the first light-emitting regions of the first sub-pixels and the centers of the third light-emitting regions of the third sub-pixels located in the same row extending along the row direction are on the same straight line extending along the row direction; the centers of the first light-emitting regions of the first sub-pixels and the centers of the third light-emitting regions of the third sub-pixels located in the same column extending along the column direction are not on the same straight line extending along the column direction.

[0069] For example, in the display substrate provided by at least one embodiment of the present utility model, the orthographic projection of a first opening on the main surface of the substrate is within the orthographic projection range of a second opening on the backplane; the first ends of the second openings of multiple second sub-pixels located in the same row extending along the row direction are all on the same straight line extending along the column direction, and the second ends of the second openings of multiple second sub-pixels located in the same row extending along the row direction, which are opposite to their first ends, are all on the same straight line extending along the row direction; among two adjacent rows of second sub-pixels, the distances between the centers of the second openings of the second sub-pixels located in each column are all equal; the centers of the second openings of the first sub-pixels and the centers of the second openings of the third sub-pixels located in the same row extending along the row direction are on the same straight line extending along the row direction; the centers of the second openings of the first sub-pixels and the centers of the second openings of the third sub-pixels located in the same column extending along the column direction are not on the same straight line extending along the column direction.

[0070] For example, in the display substrate provided by at least one embodiment of the present utility model, the figure formed by connecting the centers of the second light-emitting regions of the No. 1 second sub-pixel, the No. 2 second sub-pixel, the No. 3 second sub-pixel, and the No. 4 second sub-pixel in sequence is a second trapezoid, and the intersection point of the two diagonals of the second trapezoid is within the range of the first light-emitting region of the No. 1 first sub-pixel.

[0071] For example, in the display substrate provided by at least one embodiment of the present utility model, the second trapezoid is an isosceles trapezoid, the upper base and the lower base of the second trapezoid extend along the column direction respectively, and the line connecting the centers of the second light-emitting regions of the first second sub-pixel and the fourth second sub-pixel forms the upper base of the second trapezoid, and the line connecting the centers of the second light-emitting regions of the second second sub-pixel and the third second sub-pixel forms the lower base of the second trapezoid.

[0072] For example, in the display substrate provided by at least one embodiment of the present utility model, the intersection point of the two diagonals of the second trapezoid does not coincide or coincides with the center of the first light-emitting region of the first first sub-pixel.

[0073] For example, in the display substrate provided by at least one embodiment of the present utility model, the figure formed by connecting the centers of the second openings of the first second sub-pixel, the second second sub-pixel, the third second sub-pixel, and the fourth second sub-pixel P2 in sequence is a fourth trapezoid, and the intersection point of the two diagonals of the fourth trapezoid is within the range of the second opening of the first first sub-pixel.

[0074] For example, in the display substrate provided by at least one embodiment of the present utility model, the fourth trapezoid is an isosceles trapezoid, the upper base and the lower base of the fourth trapezoid extend along the row direction respectively, and the line connecting the centers of the second openings of the first second sub-pixel and the second second sub-pixel forms the upper base of the fourth trapezoid, and the line connecting the centers of the second openings of the third second sub-pixel and the fourth second sub-pixel forms the lower base of the fourth trapezoid.

[0075] For example, in the display substrate provided by at least one embodiment of the present utility model, among the multiple second sub-pixels located in the same row extending along the row direction, among the multiple second sub-pixels located in the same row extending along the row direction, the second light-emitting regions of the multiple second sub-pixels located in the odd columns are respectively aligned with each other at both ends in the column direction, and the second light-emitting regions of the multiple second sub-pixels located in the even columns are respectively aligned with each other at both ends in the column direction; for the multiple second sub-pixels located in the same row, the first ends of the second light-emitting regions of two adjacent second sub-pixels are not aligned with each other and the second ends are not aligned with each other in the column direction; for two adjacent rows of second sub-pixels extending along the row direction, the distances between the centers of the second light-emitting regions of two adjacent second sub-pixels in adjacent columns are not equal in the column direction.

[0076] For example, in the display substrate provided by at least one embodiment of the present utility model, the distance between the centers of the light-emitting regions of the second sub-pixel No. 2 and the second sub-pixel No. 3 in the column direction is greater than the distance between the centers of the light-emitting regions of the second sub-pixel No. 1 and the second sub-pixel No. 4 in the column direction.

[0077] For example, in the display substrate provided by at least one embodiment of the present utility model, among the multiple second sub-pixels located in the same row extending along the row direction, the two ends of the second openings of the multiple second sub-pixels located in the odd columns are respectively aligned with each other in the column direction, and the two ends of the second openings of the multiple second sub-pixels located in the even columns are respectively aligned with each other in the column direction; for two adjacent rows of the second sub-pixels extending along the row direction, the distance between the centers of the second openings of two adjacent second sub-pixels in adjacent columns in the column direction is not equal.

[0078] For example, in the display substrate provided by at least one embodiment of the present utility model, the distance between the centers of the second openings of the second sub-pixel No. 2 and the second sub-pixel No. 3 in the column direction is greater than the distance between the centers of the second openings of the second sub-pixel No. 1 and the second sub-pixel No. 4 in the column direction.

[0079] For example, in the display substrate provided by at least one embodiment of the present utility model, the multiple second sub-pixels located in the same column include three second sub-pixels arranged continuously in sequence. Among the three second sub-pixels, the distance between the centers of the light-emitting regions of the first second sub-pixel and the second second sub-pixel in the column direction is less than the distance between the centers of the light-emitting regions of the second second sub-pixel and the third second sub-pixel in the column direction; the distance between the second sub-isolation structures of the first second sub-pixel and the second second sub-pixel in the column direction is less than the distance between the second sub-isolation structures of the second second sub-pixel and the third second sub-pixel in the column direction.

[0080] For example, in the display substrate provided by at least one embodiment of the present utility model, the distance between the second sub-isolation structure of the second sub-pixel and the third sub-isolation structure of the third sub-pixel arranged adjacent to each other in the first direction in the first direction is not equal to the distance between the second sub-isolation structures of two adjacent second sub-pixels arranged in the row direction in the row direction.

[0081] For example, in the display substrate provided by at least one embodiment of the present utility model, the distance in the first direction between the second sub-isolation structure of the second sub-pixel and the third sub-isolation structure of the third sub-pixel that are arranged adjacent to each other in the first direction is not equal to the distance in the first direction between the second sub-isolation structure of the second sub-pixel and the third sub-isolation structure of the third sub-pixel that are arranged adjacent to each other in the second direction.

[0082] For example, in the display substrate provided by at least one embodiment of the present utility model, for each of at least some of the plurality of sub-pixels, the shape of the positive projection of the second opening of the sub-pixel on the main surface of the substrate is the same as the shape of the positive projection of the light-emitting region of the sub-pixel on the main surface of the substrate, and the center of the positive projection of the second opening of the sub-pixel on the main surface of the substrate is substantially coincident with the center of the positive projection of the light-emitting region of the sub-pixel on the main surface of the substrate.

[0083] At least one embodiment of the present utility model further provides a display device, and the display device includes any display substrate provided by at least one embodiment of the present utility model.

[0084] In a display substrate provided by the present utility model, different sub-isolation structures, such as a first sub-isolation structure and a second sub-isolation structure, can be used to respectively provide different second electrical signals to the second electrodes of sub-pixels of different colors, so that the difference between the first electrical signal and the second electrical signal in sub-pixels of different colors is different, to meet the different requirements of light-emitting materials emitting different colors of light for the driving voltage.

[0085] In a display substrate provided by the present utility model, a sub-isolation structure is set for each sub-pixel to adapt to the pixel arrangement in a trapezoidal layout, so as to provide corresponding second electrical signals to each sub-pixel, so that the light-emitting layer of the sub-pixel emits light under the action of the first electrical signal and the second electrical signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0086] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only relate to some embodiments of the present utility model and do not limit the present utility model.

[0087] Figure 1 is a cross-sectional schematic diagram of a partial structure of a display substrate provided by an embodiment of the present utility model;

[0088] Figure 2 is a cross-sectional schematic diagram of another partial structure of a display substrate provided by an embodiment of the present utility model;

[0089] Figure 3It is a partial plan view of a display substrate provided by an embodiment of the present utility model;

[0090] Figure 4 It is another partial plan view of a display substrate provided by an embodiment of the present utility model;

[0091] Figure 5 It is yet another partial plan view of a display substrate provided by an embodiment of the present utility model;

[0092] Figure 6 It is still another partial plan view of a display substrate provided by an embodiment of the present utility model;

[0093] Figure 7A is Figure 2 an enlarged view of the local L in

[0094] Figure 7B It is a structural view of a sub-light emitting layer;

[0095] Figure 8 It is a structural view of another display substrate provided by an embodiment of the present disclosure;

[0096] Figure 9 It is a cross-sectional view of the partial structure of another display substrate provided by an embodiment of the present utility model;

[0097] Figure 10 is Figure 9 an enlarged view of the local L in

[0098] Figure 11 It is a schematic view of a display device provided by an embodiment of the present utility model. Detailed implementation manners

[0099] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0100] Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which this utility model pertains. The terms "first", "second" and similar terms used in the description and claims of this utility model patent application do not denote any order, quantity or importance, but are merely used to distinguish different components. The terms such as "comprising" or "including" mean that the elements or items appearing before this term cover the elements or items listed after this term and their equivalents, without excluding other elements or items. The terms such as "inside", "outside", "above", "below", etc. are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0101] As used herein, "vertical", "equal" include the stated situations and situations similar to the stated situations, and the range of the similar situations is within an acceptable deviation range, where the acceptable deviation range is determined by those of ordinary skill in the art considering the measurements being discussed and the errors associated with the measurements of specific quantities (i.e., the limitations of the measurement system). For example, "vertical" includes absolute vertical and approximate vertical, and the acceptable deviation range of approximate vertical can be, for example, within 5° deviation. "Equal" includes absolute equal and approximate equal, and the acceptable deviation range of approximate equal can be, for example, that the difference between the two equal ones is less than or equal to 5% of either one.

[0102] It should be understood that when a layer or element is referred to as being on another layer or substrate, it can be that the layer or element is directly on the other layer or substrate, or there can also be an intermediate layer between the layer or element and the other layer or substrate.

[0103] Exemplary embodiments are described herein with reference to cross-sectional views and / or plan views that are idealized exemplary drawings. In the drawings, the thickness of the layers and the area of the regions are enlarged for clarity. Therefore, variations in the shape relative to the drawings due to, for example, manufacturing techniques and / or tolerances can be envisioned. Thus, the exemplary embodiments should not be construed as being limited to the shapes of the regions shown herein, but include shape deviations caused by, for example, manufacturing. For example, an etched region shown as rectangular will generally have curved features. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to show the actual shape of the regions of the device and are not intended to limit the scope of the exemplary embodiments.

[0104] The drawings in this utility model are not strictly drawn to actual scale, and the number of sub-pixels of each color shown in the substrate is not limited to the number shown in the figures. The specific dimensions and quantities of each structure can be determined according to actual needs. The drawings described in this utility model are only schematic diagrams of the structures.

[0105] In the present application, a sub-isolation structure of a sub-pixel forms a second opening around the light-emitting region of the sub-pixel. The distance between the sub-isolation structures of two sub-pixels refers to the distance between the edges of the second openings of the two sub-pixels that are close to each other or the distance between the closest points on the edges that are close to each other.

[0106] In the present application, the distance between the light-emitting regions of two sub-pixels refers to the distance between the edges of the light-emitting regions of the two sub-pixels that are close to each other or the distance between the closest points on the edges that are close to each other.

[0107] In the present application, the distance between the light-emitting regions of two sub-pixels in a certain direction refers to the distance between the edges of the light-emitting regions of the two sub-pixels that are closest to each other in that certain direction, or refers to the distance between the closest points on the edges of the light-emitting regions of the two sub-pixels that are closest to each other in that certain direction.

[0108] In the present application, the distance between the sub-isolation structures of two sub-pixels in a certain direction refers to the distance between the edges of the sub-isolation structures of the two sub-pixels that are closest to each other in that certain direction, or refers to the distance between the closest points on the edges of the sub-isolation structures of the two sub-pixels that are closest to each other in that certain direction.

[0109] In the present application, the center of the second opening refers to the geometric center of the shape of the orthographic projection of the edge of the second opening on the main surface of the substrate (referred to as the planar pattern of the second opening). When the planar pattern of the second opening is an irregular shape, it is idealized as a similar regular shape, and the center of the second opening is the geometric center of the regular shape. For example, the overall planar pattern of a second opening is a rectangle, a rhombus, a circle, an ellipse, etc. The types of the planar pattern of a second opening listed above are only common and exemplary. The embodiments of the present invention do not specifically limit the planar pattern of a light-emitting region and are not limited to the types listed above.

[0110] In the present application, the center of the light-emitting region described refers to the geometric center of the shape of the planar pattern (orthographic projection on the main surface of the substrate 10) of the light-emitting region. When the planar pattern of the light-emitting region is an irregular shape, it is idealized as a similar regular shape, and the center of the light-emitting region is the geometric center of the regular shape. For example, the overall planar pattern of a light-emitting region is a rectangle, a rhombus, a circle, an ellipse, etc. The types of the planar pattern of a light-emitting region listed above are only common and exemplary. The embodiments of the present invention do not specifically limit the planar pattern of a light-emitting region and are not limited to the types listed above.

[0111] In a display substrate, the light-emitting devices of the red, green, and blue sub-pixels in a pixel unit can all be driven by a single voltage source to emit light. Since the preset operating voltages of light-emitting devices of different colors are usually different. For example, the operating voltage of a blue light-emitting device is relatively higher, while the operating voltages of red and green light-emitting devices are relatively lower. When the same power supply voltage is applied to the active driving circuits of sub-pixels of different colors, to ensure white balance display, the pixel driving power supply voltage needs to be set according to the operating voltage of the blue light device. Relative to the blue pixels, the voltages and corresponding power consumptions excessively shared by the driving transistors in the active driving circuits of the red and green pixels do not contribute to the light emission of the light-emitting devices, but instead dissipate as thermal power consumption. This not only reduces the electro-optical efficiency of the display device, but also affects the working performance of electronic components when the heat in the circuit reaches a certain level, thereby affecting the display effect of the display device.

[0112] At least one embodiment of the present invention provides a display substrate, which includes: a substrate, a pixel definition layer, a first electrode, an isolation structure, and a second electrode. The substrate has a main surface; the pixel definition layer is disposed on the main surface of the substrate and defines a plurality of first openings; the first electrode is disposed on the main surface of the substrate and is applied with a first electrical signal, and at least a part of the first electrode is exposed by the first opening; the isolation structure is disposed on a side of the pixel definition layer away from the substrate and defines a plurality of second openings; a positive projection of one of the first openings on the main surface of the substrate is located within a positive projection range of one of the second openings on the backplane; the second electrode includes a first part at least partially located in the second opening, and the first part of the second electrode is applied with a second electrical signal; the isolation structure includes a plurality of sub-isolation structures, and the plurality of sub-isolation structures include a first sub-isolation structure and a second sub-isolation structure that are spaced apart and disconnected from each other; the first part of the second electrode includes a first sub-electrode and a second sub-electrode that are respectively located in different second openings and are disconnected from each other; the first sub-electrode is electrically connected to the first sub-isolation structure, and the second sub-electrode is electrically connected to the second sub-isolation structure.

[0113] In this display substrate, the first sub-isolation structure and the second sub-isolation structure are spaced apart and disconnected from each other. Here, "disconnected" means non-electrically connected. Thus, different second electrical signals can be provided to the second electrodes of sub-pixels of different colors through different sub-isolation structures, such as the first sub-isolation structure and the second sub-isolation structure, so that the differences between the first electrical signal and the second electrical signal in sub-pixels of different colors are different, to meet the different requirements of light-emitting materials emitting different colors of light for the driving voltage.

[0114] At least one embodiment of the present utility model further provides a display substrate, which includes a pixel array. The pixel array includes a plurality of sub-pixels arranged in an array. The plurality of sub-pixels include a first sub-pixel, a second sub-pixel, and a third sub-pixel. The plurality of sub-pixels form a plurality of pixel units. At least one of the pixel units includes one second sub-pixel and two first sub-pixels and two third sub-pixels surrounding the one second sub-pixel. In one pixel unit, a figure formed by sequentially connecting the centers of the first light-emitting regions of the two first sub-pixels and the centers of the third sub-light-emitting regions of the two third sub-pixels along the direction of surrounding one second sub-pixel is a first trapezoid. The intersection of the two diagonals of the first trapezoid is within the range of the second light-emitting region of the one second sub-pixel being surrounded. The display substrate further includes: a pixel definition layer, a first electrode, and an isolation structure. The pixel definition layer is disposed on the main surface of the substrate and defines a plurality of first openings. The first electrode is disposed on the main surface of the substrate and is applied with a first electrical signal. At least a part of the first electrode is exposed by the first openings. The isolation structure is disposed on the side of the pixel definition layer away from the substrate and defines a plurality of second openings. In this display substrate, sub-isolation structures are provided for each sub-pixel to adapt to the trapezoidal arrangement of pixel arrangement, so as to provide corresponding second electrical signals for each sub-pixel, so that the light-emitting layer of the sub-pixel emits light under the action of the first electrical signal and the second electrical signal.

[0115] At least one embodiment of the present utility model further provides a display device, which includes any one of the display substrates provided by the embodiments of the present utility model.

[0116] Exemplarily, Figure 1 is a cross-sectional schematic diagram of a partial structure of a display substrate provided by an embodiment of the present utility model; Figure 2 is a cross-sectional schematic diagram of another partial structure of a display substrate provided by an embodiment of the present utility model.

[0117] As Figure 1 shown, the display substrate 100 includes a backplane 10. The backplane 10 includes a substrate 11 and a pixel circuit layer 12 that are sequentially stacked.

[0118] For example, the display substrate 100 provided by the embodiment of the present utility model may be an organic light-emitting diode (OLED) display substrate. Of course, it may also be other types of electroluminescent display substrates.

[0119] The types of the above-mentioned substrate 11 include various types, which can be selected and set according to actual needs.

[0120] Exemplarily, the above-mentioned substrate 11 may be a rigid substrate. The rigid substrate may be a glass substrate or a PMMA (Polymethylmethacrylate) substrate, etc.

[0121] Exemplarily, the above-mentioned substrate 11 may be a flexible substrate. The flexible substrate may be a PET (Polyethyleneterephthalate) substrate, a PEN (Polyethylenenaphthalatetwoformicacidglycolester) substrate, or a PI (Polyimide) substrate, etc. In this case, the above-mentioned display substrate 100 can achieve flexible display, for example.

[0122] Of course, the type of the substrate 11 is not limited to the types listed above, and the embodiments of the present invention do not make any limitations in this regard.

[0123] The substrate 11 has a main surface. Exemplarily, the pixel circuit layer 12 is disposed on one side of the substrate 11, for example, on the main surface of the substrate 11. The pixel circuit layer 12 may include a plurality of pixel driving circuits 13.

[0124] Exemplarily, the pixel driving circuit 13 may include, but is not limited to, elements such as transistors and capacitors. The structure of the pixel driving circuit 13 may include various types, and the present invention does not make any limitations in this regard. For example, the structure of the pixel driving circuit 13 may be structures such as "6T1C", "7T1C", "6T2C", "7T2C", etc.; "T" represents a transistor, the number in front of "T" represents the number of transistors, "C" represents a storage capacitor, and the number in front of "C" represents the number of storage capacitors. In the drawings of some embodiments of the present invention, one transistor is used as an example to represent the pixel driving circuit 13 for illustration.

[0125] In some examples, please continue to refer to Figure 1 , the display substrate 100 further includes a pixel defining layer 20. The pixel defining layer 20 is disposed on the main surface of the substrate 11, for example, on the side of the pixel circuit layer 12 away from the substrate 11.

[0126] Exemplarily, the pixel defining layer 20 defines a plurality of first openings 21. The top view structure of the pixel defining layer 20 is similar to a grid shape, and the plurality of first openings 21 form the mesh holes of the grid shape.

[0127] Exemplarily, the shapes of the above-mentioned plurality of first openings 21 may have various types, such as circular, oval, quadrilateral, pentagon, hexagon, etc. The quadrilateral includes regular figures or irregular figures such as rectangle, square, parallelogram, and rhombus. The embodiments of the present invention do not make any limitations in this regard.

[0128] As Figure 2 shown, for example, the display substrate 100 further includes: a first electrode layer 30 disposed between the pixel defining layer 20 and the backplane 10. The first electrode layer 30 includes a plurality of first electrodes 31 spaced apart from each other.

[0129] The first electrode 31 is connected to the pixel driving circuit 13 in the backplane 10 and receives an electrical signal provided by the pixel driving circuit 13. For example, a first opening 21 exposes at least a part of a first electrode 31. The surface of the first electrode 31 on the side away from the backplane may be entirely exposed through the first opening 21, or partially exposed, with part covered by the pixel defining layer 20. That is, the first electrode 31 is disposed on the main surface of the substrate 11, and the first opening 21 exposes at least part of the first electrode 31; the first electrode 31 is applied with a first electrical signal.

[0130] Referring Figure 2 to, the display substrate 100 further includes an isolation structure 40 and a light emitting layer 50. The isolation structure 40 is disposed on the side of the pixel defining layer 20 away from the substrate 11, defining a plurality of second openings 41. The orthographic projection of a first opening 21 on the main surface of the substrate 11 is within the orthographic projection range of a second opening 41 on the backplane; the second electrode 60 includes a first portion 601 at least partially located within the second opening 41, and the first portion 601 of the second electrode 60 is applied with a second electrical signal; the light emitting layer 50 is at least partially sandwiched between the first electrode 31 and the first portion 601 of the second electrode 60, and is configured to emit light under the action of the first electrical signal and the second electrical signal.

[0131] For example, as Figure 2 shown, the isolation structure 40 includes a plurality of sub-isolation structures, and the plurality of sub-isolation structures include a first sub-isolation structure 40a and a second sub-isolation structure 40b that are spaced apart and disconnected from each other; the first portion 601 of the second electrode 60 includes a first sub-electrode 601a and a second sub-electrode 601b that are respectively located in different second openings 41 and are disconnected from each other; the first sub-electrode 601a is electrically connected to the first sub-isolation structure 40a, and the second sub-electrode 601b is electrically connected to the second sub-isolation structure 40b.

[0132] For example, the first electrode 31 is an anode and the second electrode 60 is a cathode.

[0133] For example, the first electrical signal is a first power supply voltage, such as a high-level signal VDD, and the second electrical signal is a second power supply voltage, such as a low-level signal VSS. For example, the second power supply voltage terminal for providing the second power supply voltage may be a ground terminal, but is not limited to a ground terminal, as long as a voltage lower than the first power supply voltage is provided so that the difference between the first power supply voltage and the second power supply voltage meets the light emission requirements of the light emitting material.

[0134] In the display substrate 100, the first sub-isolation structure 40a and the second sub-isolation structure 40b are spaced apart from each other and disconnected. Here, "disconnected" means non-electrically connected. In this way, different sub-isolation structures, such as the first sub-isolation structure 40a and the second sub-isolation structure 40b, can respectively provide different second electrical signals to the second electrodes 60 of corresponding sub-pixels of different colors, so that the difference between the first electrical signal and the second electrical signal in different color sub-pixels is different. For example, the difference between the second electrical signal and the first sub-signal is different from the difference between the second electrical signal and the second sub-signal, so as to meet the different requirements of light-emitting materials emitting different colors of light for the driving voltage, and avoid providing too high a voltage difference to the light-emitting materials with lower requirements for the difference between the first electrical signal and the second electrical signal, thereby avoiding the problem that the light-emitting materials overheat under the action of too high a voltage difference.

[0135] For example, the second electrical signal includes a first sub-signal and a second sub-signal. The first sub-isolation structure 40a is applied with the first sub-signal, and the second sub-isolation structure 40b is applied with the second sub-signal. The values of the first sub-signal and the second sub-signal are different, so that the difference between the second electrical signal and the first sub-signal is different from the difference between the second electrical signal and the second sub-signal.

[0136] For example, refer to Figure 2 , the isolation structure 40 further includes a third sub-isolation structure 40c. The third sub-isolation structure 40c is spaced apart from both the first sub-isolation structure 40a and the second sub-isolation structure 40b; the second electrical signal further includes a third sub-signal. The third sub-isolation structure 40c is applied with the third sub-signal. The values of the first sub-signal, the second sub-signal, and the third sub-signal are different from each other; the isolation structure 40 includes a plurality of first sub-isolation structures 40a, a plurality of second sub-isolation structures 40b, and a plurality of third sub-isolation structures 40c. The plurality of first sub-isolation structures 40a are electrically connected to each other, the plurality of second sub-isolation structures 40b are electrically connected to each other, and the plurality of third sub-isolation structures 40c are electrically connected to each other. Thus, the first sub-isolation structure 40, the second sub-isolation structure 40b, and the third sub-isolation structure 40c can respectively provide different second electrical signals to the second electrodes 60 of corresponding three different color sub-pixels, so that the difference between the first electrical signal and the second electrical signal in the three different color sub-pixels is different. For example, the difference between the second electrical signal and the first sub-signal, the difference between the second electrical signal and the second sub-signal, and the difference between the second electrical signal and the third sub-signal are different from each other, so as to meet the different requirements of light-emitting materials emitting three different colors of light in three different color sub-pixels for the driving voltage, and avoid the problem that the light-emitting materials overheat under too high a voltage.

[0137] Figure 3 is a partial plan schematic diagram of a display substrate provided by an embodiment of the present invention. Refer to FigureFigure 2 and Figure 3 For example, the display substrate 100 includes a plurality of sub-pixels arranged in an array, the isolation structure 40 includes a plurality of sub-isolation structures, and the plurality of sub-pixels respectively include corresponding sub-isolation structures; the plurality of sub-pixels include a first sub-pixel P1, a second sub-pixel P2, and a third sub-pixel P3, and the plurality of sub-isolation structures include a first sub-isolation structure 40a, a second sub-isolation structure 40b, and a third sub-isolation structure 40c located in the first sub-pixel P1, the second sub-pixel P2, and the third sub-pixel P3, respectively.

[0138] For example, the first opening 21 includes a first sub-opening 211, a second sub-opening 212, and a third sub-opening 213 located in the first sub-pixel P1, the second sub-pixel P2, and the third sub-pixel P3, respectively; the first sub-pixel P1 includes a first light-emitting region EA1 at least partially located in the first sub-opening 211, and the first sub-isolation structure 40a surrounds the first light-emitting region EA1; the second sub-pixel P2 includes a second light-emitting region EA2 at least partially located in the second sub-opening 212, and the second sub-isolation structure 40b surrounds the second light-emitting region EA2; the third sub-pixel P3 includes a third light-emitting region EA3 at least partially located in the third sub-opening 213, and the third sub-isolation structure 40c surrounds the third light-emitting region EA3, and the first sub-isolation structure 40a surrounds the first light-emitting region EA1; the light-emitting layer includes a plurality of sub-light-emitting layers 501 located in the light-emitting regions of the plurality of sub-pixels, and the sub-light-emitting layer 501 is the part that effectively emits light. The plurality of sub-light-emitting layers include a first sub-light-emitting layer 501a located in the first light-emitting region EA1 and emitting light of a first color, a second sub-light-emitting layer 501b located in the second light-emitting region EA2 and emitting light of a second color, and a third sub-light-emitting layer 501c located in the third light-emitting region EA3 and emitting light of a third color, and the first color, the second color, and the third color are different from each other.

[0139] For example, the first sub-light-emitting layer 501a emits red light, the second sub-light-emitting layer 501b emits green light, and the third sub-light-emitting layer 501c emits blue light, that is, the first color, the second color, and the third color are red, green, and blue, respectively. Of course, in other embodiments, the colors of the light emitted by the sub-light-emitting layers of each sub-pixel may also be other colors, not limited to red, green, and blue, and the number of sub-pixels included in a pixel unit is not limited to 2 or 3 either. For example, it may also be more than 3, such as including 4 sub-pixels that respectively emit light of different colors, and each of the 4 sub-pixels is correspondingly provided with a sub-isolation structure.

[0140] For example, under highlighted conditions, at a brightness of 3500 lumens (3500 nits), in a single OLED device, the voltage value range of the second electrical signal of the first sub-pixel can be set to 1.7 - 5.17V, the voltage value range of the second electrical signal of the first sub-pixel can be set to 2.22 - 5.06V, and the voltage value range of the second electrical signal of the third sub-pixel can be set to 0.92 - 4.87V. Theoretically, the voltage difference that enables each sub-pixel to emit light normally can save 0.3V, and the heat generation per unit time is reduced by 1%. This is beneficial for reducing heat generation and extending the lifespan of the light-emitting device and the display substrate.

[0141] For example, according to tests, at a brightness of 2000 lumens (2000 nits), in a Tandem OLED device, the voltage value range of the second electrical signal of the first sub-pixel can be set to 1.7 - 4.73V, the voltage value range of the second electrical signal of the first sub-pixel can be set to 4.77V, and the voltage value range of the second electrical signal of the third sub-pixel can be set to 3.97V. The voltage difference that enables each sub-pixel to emit light normally can save 0.8V, and the heat generation per unit time is reduced by 3%.

[0142] Therefore, in the display substrate provided by the embodiments of the present invention, providing different second electrical signals to the second electrode for sub-pixels of different colors through the sub-isolation structure can achieve the technical effect of effectively reducing the heat generation of the light-emitting device.

[0143] Reference Figure 3, the distance between the adjacent first sub-isolation structure 40a and second sub-isolation structure 40b is a first distance, the distance between the adjacent first sub-isolation structure 40a and third sub-isolation structure 40c is a second distance, and the distance between the adjacent second sub-isolation structure 40b and third sub-isolation structure 40c is a third distance; at least two of the first distance, the second distance, and the third distance are different. On the same plane parallel to the main surface of the substrate, at least two of the lateral distances of the first distance, the second distance, and the third distance are different, where the lateral direction is parallel to the main surface of the substrate. That is to say, the comparison of the lateral distances of the first distance, the second distance, and the third distance is carried out on the same plane parallel to the main surface of the substrate 11. Or rather, the direction perpendicular to the main surface of the substrate 11 is the longitudinal direction, and the comparison of the lateral distances of the first distance, the second distance, and the third distance is carried out at the same height in the longitudinal direction. In this way, in the display substrate, the distances (referring to the distances between the edges where the adjacent light-emitting regions are close to each other) between the light-emitting regions corresponding to at least any two adjacent ones of the first sub-pixel, the second sub-pixel, and the third sub-pixel are different, and making at least two of the first distance, the second distance, and the third distance different is also inconsistent, which can more reasonably implement three isolation structures that respectively provide different second electrical signals, save space while reducing the heat generation of the display substrate, optimize the layout of multiple sub-isolation structures, and achieve a higher resolution (Pixels Per Inch, PPI).

[0144] For example, referring to Figure 3 , the display substrate 100 includes a pixel array, the pixel array includes a plurality of pixel units arranged in an array, and at least one pixel unit includes a second sub-pixel P2, two first sub-pixels P1 respectively located on both sides of the second sub-pixel P2 in the first direction D1, and two third sub-pixels P3 respectively located on both sides of the second sub-pixel P2 in the second direction D2. As Figure 3 shown, the reference numerals in each pixel represent the numbers of the following sub-pixels. Schematically, Figure 3The five sub-pixels within the dashed box form a pixel unit P0. In a pixel unit P0, the two first sub-pixels P1 are respectively the 1st first sub-pixel P1 and the 2nd first sub-pixel P1, and the two third sub-pixels P3 are respectively the 1st third sub-pixel P3 and the 2nd third sub-pixel P3. The 1st first sub-pixel P1 and the 2nd third sub-pixel P3 are arranged in the row direction D3, and the 2nd first sub-pixel P1 and the 2nd third sub-pixel P3 are arranged in the column direction D4. The row direction D3 and the column direction D4 are perpendicular and both intersect with the first direction D1 and the second direction D2. The distance between the center of the first light-emitting area EA1 of the 1st first sub-pixel P1 and the center of the second light-emitting area EA2 of this one second sub-pixel P2 is less than the distance between the center of the first light-emitting area EA1 of the 2nd first sub-pixel P1 and the center of the second light-emitting area EA2 of this one second sub-pixel P2. The distance between the center of the first light-emitting area EA1 of the 1st first sub-pixel P1 and the center of the second light-emitting area EA2 of the 2nd third sub-pixel P3 is less than the distance between the center of the first light-emitting area EA1 of the 2nd first sub-pixel P1 and the center of the third light-emitting area EA3 of the 1st third sub-pixel P3. Figure 3 This arrangement shown is a trapezoidal arrangement, called the first trapezoidal arrangement.

[0145] Reference Figure 3 , in the pixel array of the first trapezoidal arrangement, for example, the pixel array includes four second sub-pixels P2 that surround the 1st first sub-pixel P1 and are adjacent to the 1st first sub-pixel P1, which are respectively the 1st second sub-pixel P2, the 2nd second sub-pixel P2, the 3rd second sub-pixel P2, and the 4th second sub-pixel P2 arranged counterclockwise in sequence; the 4th second sub-pixel P2, the 1st first sub-pixel P1, and the 2nd second sub-pixel P2 are arranged in the first direction D1, and the 1st second sub-pixel P2, the 1st first sub-pixel P1, and the 3rd second sub-pixel P2 are arranged in the second direction D2; the distance between the center of the second light-emitting area EA2 of the 1st second sub-pixel P2 and the center of the first light-emitting area EA1 of the 1st first sub-pixel P1 is equal to the distance between the center of the second light-emitting area EA2 of the 4th second sub-pixel P2 and the center of the first light-emitting area EA1 of the 1st first sub-pixel P1, the distance between the center of the second light-emitting area EA2 of the 2nd second sub-pixel P2 and the center of the first light-emitting area EA1 of the 1st first sub-pixel P1 is equal to the distance between the center of the second light-emitting area EA2 of the 3rd second sub-pixel P2 and the center of the first light-emitting area EA1 of the 1st first sub-pixel P1, and the distance between the center of the second light-emitting area EA2 of the 1st second sub-pixel P2 and the center of the first light-emitting area EA1 of the 1st first sub-pixel P1 is greater than the distance between the center of the second light-emitting area EA2 of the 2nd second sub-pixel P2 and the center of the first light-emitting area EA1 of the 1st first sub-pixel P1.

[0146] For example, in Figure 3In the first arrangement shown, in a pixel unit P0, a figure formed by connecting the centers of the first light-emitting regions of the first sub-pixel P1 numbered 1, the centers of the third light-emitting regions of the third sub-pixel P3 numbered 1, the centers of the first light-emitting regions of the first sub-pixel P1 numbered 2, and the centers of the third light-emitting regions of the third sub-pixel P3 numbered 2 in sequence is a first trapezoid (as shown by the trapezoidal dotted line frame in Figure 3 ). The intersection point of the two diagonals of this first isosceles trapezoid is located within the range of the second light-emitting region of a second sub-pixel P2 surrounded by the first sub-pixel P1 numbered 1, the first sub-pixel P1 numbered 2, the third sub-pixel P3 numbered 1, and the third sub-pixel P3 numbered 2 (i.e., the second sub-pixel numbered 2 in Figure 3 ). For example, the intersection point of the two diagonals of this isosceles trapezoid does not coincide with the center of the second light-emitting region of this second sub-pixel P2. Or, in other embodiments, the intersection point of the two diagonals of this first isosceles trapezoid may coincide with the center of the second light-emitting region of this second sub-pixel P2.

[0147] For example, referring to FIG. 3, the first trapezoid is an isosceles trapezoid. A, B, C, and D respectively represent the four vertices of the first trapezoid. For example, the upper base and the lower base of the first trapezoid extend along the row direction D3. The connection line between the center of the first light-emitting region of the first sub-pixel P1 numbered 1 and the center of the third light-emitting region of the third sub-pixel P3 numbered 2 forms the upper base of the first trapezoid, and the connection line between the center of the third light-emitting region of the third sub-pixel P3 numbered 1 and the center of the first light-emitting region of the first sub-pixel P1 numbered 2 forms the lower base of the first trapezoid.

[0148] Correspondingly, in a pixel unit P0, a figure formed by connecting the centers of the second openings 41 of the two first sub-pixels P1 and the centers of the second openings 41 of the two third sub-pixels P3 in sequence along the direction around a second sub-pixel P2 (such as the second sub-pixel P2 numbered 2 in Figure 3 ) is a third trapezoid. The intersection point of the two diagonals of the third trapezoid is located within the range of the second opening 41 of a second sub-pixel P2 surrounded (such as the second sub-pixel P2 numbered 2 in Figure 3 ).

[0149] The setting of the third trapezoid can adapt to the pixel arrangement in a trapezoidal layout to set sub-isolation structures for each sub-pixel, optimize the layout of various sub-isolation structures corresponding to the pixel arrangement, improve the space utilization rate, and improve the PPI of the display substrate.

[0150] For example, the third trapezoid is an isosceles trapezoid. The upper base and the lower base of the third trapezoid extend along the row direction respectively. The line connecting the centers of the second openings 41 of the first sub-pixel P1 numbered 1 and the second openings 41 of the third sub-pixel P3 numbered 2 forms the upper base of the third trapezoid. The line connecting the centers of the second openings 41 of the third sub-pixel P3 numbered 1 and the second openings 41 of the first sub-pixel P1 numbered 2 forms the lower base of the third trapezoid, so as to further make the shape of the third trapezoid adapt to the shape of the first trapezoid, thereby making the arrangement modes of multiple sub-isolation structures further consistent with the pixel arrangement mode.

[0151] For example, for each of at least some of the multiple sub-pixels, the shape of the positive projection of the second opening of the sub-pixel on the main surface of the substrate is the same as the shape of the positive projection of the light-emitting region of the sub-pixel on the main surface of the substrate, and the center of the positive projection of the second opening of the sub-pixel on the main surface of the substrate coincides with the center of the positive projection of the light-emitting region of the sub-pixel on the main surface of the substrate. In this case, the third trapezoid coincides with the first trapezoid.

[0152] Corresponding to the first trapezoidal arrangement of the above pixels, for example, the distance between the first sub-isolation structure 40a of the first sub-pixel P1 numbered 1 and the second sub-isolation structure 40b of the second sub-pixel P2 (i.e., Figure 3 the second sub-pixel P2 numbered 2 in) is less than the distance between the first sub-isolation structure 40a of the first sub-pixel P1 numbered 2 and the second sub-isolation structure 40b of a second sub-pixel P2. The distance between the first sub-isolation structure 40a of the first sub-pixel P1 numbered 1 and the third sub-isolation structure 40c of the third sub-pixel P3 numbered 2 is less than the distance between the first sub-isolation structure 40a of the first sub-pixel P1 numbered 2 and the third sub-isolation structure 40c of the third sub-pixel P3 numbered 1. In this way, it can adapt to the first trapezoidal arrangement, optimize the layout modes of multiple sub-isolation structures that provide different second electrical signals, save space while reducing the heat generation of the display substrate, optimize the layout of multiple sub-isolation structures, and achieve a higher PPI.

[0153] Each of at least some of the multiple sub-pixels respectively includes a corresponding sub-isolation structure and a second opening. The distance between the center of the second opening of the first sub-pixel No. 1 and the center of the second opening of a second sub-pixel is less than the distance between the center of the second opening of the first sub-pixel No. 2 and the center of the second opening of a second sub-pixel, and the distance between the center of the second opening of the first sub-pixel No. 1 and the center of the second opening of the third sub-pixel No. 2 is less than the distance between the center of the second opening of the first sub-pixel No. 2 and the center of the second opening of the third sub-pixel No. 1; the distance between the center of the second opening of the second sub-pixel No. 1 and the center of the second opening of the first sub-pixel No. 1 is equal to the distance between the center of the second opening of the second sub-pixel No. 4 and the center of the second opening of the first sub-pixel No. 1, the distance between the center of the second opening of the second sub-pixel No. 2 and the center of the second opening of the first sub-pixel No. 1 is equal to the distance between the center of the second opening of the second sub-pixel No. 3 and the center of the second opening of the first sub-pixel No. 1, and the distance between the center of the second opening of the second sub-pixel No. 1 and the center of the second opening of the first sub-pixel No. 1 is greater than the distance between the center of the second opening of the second sub-pixel No. 2 and the center of the second opening of the first sub-pixel No. 1. This design of the second openings of the respective sub-pixels of the display substrate provided by the embodiment of the present utility model can adapt to the first trapezoidal arrangement, optimize the layout of multiple sub-isolation structures that provide different second electrical signals, save space while reducing the heat generation of the display substrate, and achieve a higher PPI.

[0154] For example, referring to Figure 3 , the distance between the second sub-isolation structure 40b of the second sub-pixel P2 No. 1 and the first sub-isolation structure 40a of the first sub-pixel P1 No. 1 in the second direction D2 is L1, the distance between the second sub-isolation structure 40b of the second sub-pixel P2 No. 4 and the first sub-isolation structure 40a of the first sub-pixel P1 No. 1 in the first direction D1 is L4, the distance between the second sub-isolation structure 40b of the second sub-pixel P2 No. 2 and the first sub-isolation structure 40a of the first sub-pixel P1 No. 1 in the first direction D1 is L2, and the distance between the second sub-isolation structure 40b of the second sub-pixel P2 No. 3 and the first sub-isolation structure 40a of the first sub-pixel P1 No. 1 in the second direction D2 is L3, satisfying L1 = L4 > L2 = L3. The distances between multiple sub-isolation structures that provide different second electrical signals are designed according to the characteristics of the spacing between the respective sub-pixels of the first trapezoidal arrangement, further optimizing the layout of multiple sub-isolation structures that provide different second electrical signals, saving space while reducing the heat generation of the display substrate, and achieving a higher PPI.

[0155] For example, referring to Figure 3, the pixel array includes four third sub-pixels P3 that surround and are adjacent to the first sub-pixel P1 of No. 1, namely the third sub-pixel P3 of No. 1, the third sub-pixel P3 of No. 2, the third sub-pixel P3 of No. 3, and the third sub-pixel P3 of No. 4 arranged in counterclockwise order; the third sub-pixel P3 of No. 1, the first sub-pixel P1 of No. 1, and the third sub-pixel P3 of No. 3 are arranged in sequence in the column direction D4, and the third sub-pixel P3 of No. 4, the first sub-pixel P1 of No. 1, and the third sub-pixel P3 of No. 2 are arranged in sequence in the row direction D3; the distance between the first sub-isolation structure 40a of the first sub-pixel P1 of No. 1 and the third sub-isolation structure 40c of the third sub-pixel P3 of No. 4 is L5, the distance between the first sub-isolation structure 40a of the first sub-pixel P1 of No. 1 and the third sub-isolation structure 40c of the third sub-pixel P3 of No. 2 is L6, the distance between the first sub-isolation structure 40a of the first sub-pixel P1 of No. 1 and the third sub-isolation structure 40c of the third sub-pixel P3 of No. 3 is L7, and the distance between the first sub-isolation structure 40a of the first sub-pixel P1 of No. 1 and the third sub-isolation structure 40c of the third sub-pixel P3 of No. 1 is L8, satisfying L5>L7 = L8>L6, so as to further adapt to the characteristics of the spacing between the respective sub-pixels in the first trapezoidal arrangement to design the spacing between multiple sub-isolation structures that provide different second electrical signals, further optimize the layout of multiple sub-isolation structures that provide different second electrical signals, save space while reducing the heat generation of the display substrate, optimize the layout of the pixel structure, and achieve a higher PPI.

[0156] For example, referring to Figure 3 , the pixel array includes multiple rows of sub-pixels extending along the row direction D3 and multiple columns of sub-pixels extending along the column direction D4. For example, in Figure 3 , the first row R1 includes multiple second sub-pixels P2 arranged in the row direction D3, and the second row R2 adjacent to the first row R1 includes multiple first sub-pixels P1 and multiple third sub-pixels P3 arranged in the row direction D3. For example, the first row R1 and the second row R2 form a row repetition unit, and the pixel array includes multiple row repetition units arranged in the column direction D4.

[0157] For example, referring to Figure 3 , among the multiple second sub-pixels P2 located in the same row extending along the row direction D3, the centers of the second light-emitting regions EA2 of the second sub-pixels P2 located in the odd columns are on the same straight line extending along the row direction D3 and the centers of the second light-emitting regions EA2 of the second sub-pixels P2 located in the even columns are on the same straight line extending along the row direction D3, or the centers of the second light-emitting regions EA2 of the multiple second sub-pixels P2 located in the same row extending along the row direction D3 are all on the same straight line extending along the row direction D3.

[0158] For example, referring to Figure 3, the first ends of the second light-emitting regions EA2 of multiple second sub-pixels P2 located in the same row extending along the row direction D3 are all on the same straight line extending along the column direction D4, and the second ends of the second light-emitting regions EA2 of multiple second sub-pixels P2 located in the same row extending along the row direction D3, which are opposite to their first ends, are all on the same straight line extending along the row direction D3. That is, for multiple second sub-pixels P2 located in the same row, the two ends of the second light-emitting regions EA2 of multiple second sub-pixels P2 located in odd-numbered columns are respectively aligned with each other in the column direction D4, and the two ends of the second light-emitting regions EA2 of multiple second sub-pixels P2 located in even-numbered columns are respectively aligned with each other in the column direction D4. Or rather, for multiple second sub-pixels P2 located in the same row, the centers of the second light-emitting regions of multiple second sub-pixels P2 located in odd-numbered columns are located on the same straight line extending along the row direction D3, and the centers of the second light-emitting regions of multiple second sub-pixels P2 located in even-numbered columns are located on the same straight line extending along the row direction D3.

[0159] Similarly, for multiple second sub-pixels P2 located in the same column, the two ends of multiple second sub-pixels P2 located in odd-numbered rows are respectively aligned with each other in the row direction D3, and the two ends of multiple second sub-pixels P2 located in even-numbered rows are respectively aligned with each other in the row direction D3. Or rather, for multiple second sub-pixels P2 located in the same column, the centers of the second light-emitting regions of multiple second sub-pixels P2 located in odd-numbered rows are located on the same straight line extending along the column direction D4, and the centers of the second light-emitting regions of multiple second sub-pixels P2 located in even-numbered rows are located on the same straight line extending along the column direction D4.

[0160] For example, referring to Figure 3 , among two adjacent rows of second sub-pixels, the distances between the centers of the light-emitting regions of the second sub-pixels located in each column are all equal; for example, the centers of the second light-emitting regions EA2 of multiple second sub-pixels P2 located in the same column extending along the column direction D4 are not on the same straight line extending along the column direction D4, the centers of the second light-emitting regions EA2 of multiple second sub-pixels P2 located in odd-numbered rows are on the same straight line extending along the column direction D4, and the centers of the second light-emitting regions EA2 of multiple second sub-pixels P2 located in even-numbered rows are on the same straight line extending along the column direction D4; of course, in other embodiments, in the first trapezoidal arrangement, the centers of the second light-emitting regions EA2 of multiple second sub-pixels P2 located in the same column extending along the column direction D4 can also be on the same straight line extending along the column direction D4;

[0161] The center of the first light-emitting region EA1 of the first sub-pixel P1 and the center of the third light-emitting region EA3 of the third sub-pixel P3 located in the same row extending along the row direction D3 are on the same straight line extending along the row direction D3;

[0162] The centers of the first light-emitting region EA1 of the first sub-pixel P1 and the third light-emitting region EA3 of the third sub-pixel P3, which are located in the same column extending along the column direction D4, are not on the same straight line extending along the column direction D4.

[0163] Corresponding to the above arrangement of the pixels, in order to optimize the layout of a plurality of sub-isolation structures that provide different second electrical signals, save space, and achieve a higher PPI. For example, the first ends of the second openings 41 of a plurality of second sub-pixels P2 located in the same row extending along the row direction D3 are all on the same straight line extending along the row direction D3 in the column direction D4, and the second ends of the second openings 41 of a plurality of second sub-pixels P2 located in the same row extending along the row direction D3, which are opposite to the first ends, are all on the same straight line extending along the row direction D3 in the column direction D4; among two adjacent rows of second sub-pixels P2, the distances between the centers of the second openings 41 of the second sub-pixels P2 in each column are all equal; the centers of the second openings 41 of the first sub-pixel P1 and the third sub-pixel P3 located in the same row extending along the row direction D3 are on the same straight line extending along the row direction D3; the centers of the second openings 41 of the first sub-pixel P1 and the third sub-pixel P3 located in the same column extending along the column direction D4 are not on the same straight line extending along the column direction D4.

[0164] In this application, the concepts of pixel rows and pixel columns can be interchanged with each other. Here, only two names are used to distinguish the pixels in two arrangement directions. For example, when the row direction is perpendicular to the column direction, rotating the display substrate by 90° can achieve the interchange of pixel rows and pixel columns.

[0165] For example, referring to Figure 4 , Figure 4 The shown arrangement of the pixels is another trapezoidal arrangement, called the second trapezoidal arrangement. In the second trapezoidal arrangement, compared with Figure 3Similarly, the pixel array may further include multiple rows of sub-pixels extending along the first direction D1 and multiple columns of sub-pixels extending along the second direction D2. For example, the first direction D1 is perpendicular to the second direction D2. The centers of the second light-emitting regions EA2 of multiple second sub-pixels P2 located in the same row extending along the row direction D3 are not on the same straight line extending along the row direction D3; for multiple second sub-pixels P2 located in the same row, the centers of the second light-emitting regions of multiple second sub-pixels P2 located in odd columns are on the same straight line extending along the row direction D3, and the centers of the second light-emitting regions of multiple second sub-pixels P2 located in even columns are on the same straight line extending along the row direction D3; and, the centers of the second light-emitting regions EA2 of multiple second sub-pixels P2 located in the same column extending along the column direction D4 are not on the same straight line extending along the column direction D4; for multiple second sub-pixels P2 located in the same column, the centers of the second light-emitting regions of multiple second sub-pixels P2 located in odd rows are on the same straight line extending along the column direction D4, and the centers of the second light-emitting regions of multiple second sub-pixels P2 located in even rows are on the same straight line extending along the column direction D4.

[0166] In the second trapezoidal arrangement, the figure formed by connecting the centers of the second light-emitting regions of the 1st second sub-pixel P1, the 2nd second sub-pixel P2, the 3rd second sub-pixel P2, and the 4th second sub-pixel P2 in sequence is a second trapezoid. The intersection of the two diagonals of this isosceles trapezoid is within the range of the first light-emitting region of a first sub-pixel P1 (i.e., the 1st first sub-pixel in Figure 4 ). For example, the intersection of the two diagonals of this second isosceles trapezoid does not coincide with the center of the first light-emitting region of the 1st first sub-pixel. Alternatively, in other embodiments, the intersection of the two diagonals of this second isosceles trapezoid may coincide with the center of the first light-emitting region of the 1st first sub-pixel.

[0167] For example, in some embodiments, in the second trapezoidal arrangement, the centers of the second light-emitting regions of multiple second sub-pixels located in the same column extending along the column direction D4 may be on the same straight line extending along the column direction D4, and the centers of the second openings of multiple second sub-pixels located in the same column extending along the column direction D4 may be on the same straight line extending along the column direction D4. In this case, the upper base and the lower base of the second trapezoid extend along the column direction respectively. The connection line between the center of the second light-emitting region of the 1st second sub-pixel and the center of the second light-emitting region of the 4th second sub-pixel constitutes the upper base of the second trapezoid, and the connection line between the center of the second light-emitting region of the 2nd second sub-pixel and the center of the second light-emitting region of the 3rd second sub-pixel constitutes the lower base of the second trapezoid.

[0168] For example, the intersection of the two diagonals of the second isosceles trapezoid does not coincide or coincides with the center of the first light-emitting region of the first sub-pixel P1 of No. 1.

[0169] Correspondingly, a figure formed by connecting the centers of the second openings 41 of the second sub-pixel P2 of No. 1, the second sub-pixel P2 of No. 2, the second sub-pixel P2 of No. 3, and the second sub-pixel P2 of No. 4 in sequence is a fourth trapezoid, and the intersection of the two diagonals of the fourth trapezoid is within the range of the second opening 41 of the first sub-pixel P1 of No. 1.

[0170] The setting of the fourth trapezoid can adapt to the pixel arrangement in a trapezoidal layout to set sub-isolation structures for each sub-pixel, optimize the layout of various sub-isolation structures corresponding to the pixel arrangement, improve space utilization, and improve the PPI of the display substrate.

[0171] For example, the fourth trapezoid is an isosceles trapezoid, the upper base and the lower base of the fourth trapezoid extend along the row direction D3 respectively, and the line connecting the center of the second opening 41 of the second sub-pixel P2 of No. 1 and the center of the second opening 41 of the second sub-pixel P2 of No. 2 forms the upper base of the fourth trapezoid, and the line connecting the center of the second opening 41 of the second sub-pixel P2 of No. 3 and the center of the second opening 41 of the second sub-pixel P2 of No. 4 forms the lower base of the fourth trapezoid, so as to further make the shape of the fourth trapezoid adapt to the shape of the second trapezoid, so that the layout of various sub-isolation structures is further consistent with the pixel arrangement.

[0172] The above arrangements of the sub-isolation structures designed corresponding to the characteristics of various pixel arrangements are all to optimize and provide the layout methods of various sub-isolation structures for different second electrical signals, save space while reducing the heat generation of the display substrate, and achieve a higher PPI.

[0173] Figure 4 The second trapezoidal arrangement shown and Figure 3 have the following differences.

[0174] Refer to Figure 4, among multiple second sub-pixels P2 in the same row extending along the row direction D3, the first ends of the second sub-pixels P2 located in odd columns are all on the same straight line extending along the row direction D3, the first ends of the second sub-pixels P2 located in even columns are all on the same straight line extending along the row direction D3, the first ends of the second sub-pixels P2 in adjacent columns are not on the same straight line extending along the row direction D3, the second ends of the second sub-pixels P2 located in odd columns opposite to their first ends in the column direction D4 are all on the same straight line extending along the row direction D3, the second ends of the second sub-pixels P2 located in even columns opposite to their first ends in the column direction D4 are all on the same straight line extending along the row direction D3, the second ends of the second sub-pixels P2 in adjacent columns are not on the same straight line extending along the row direction D3, that is, for multiple second sub-pixels P2 in the same row, the first ends of the second light-emitting regions EA2 of two adjacent second sub-pixels P2 are not aligned with each other in the column direction D4 and the second ends in the column direction are not aligned with each other.

[0175] For example, referring to Figure 4 , for two adjacent rows of second sub-pixels extending along the row direction D3, the distances between the centers of the second light-emitting regions EA2 of two adjacent second sub-pixels P2 in adjacent columns in the column direction D4 are not equal. Exemplarily, the 1st second sub-pixel and the 2nd second sub-pixel are second sub-pixels in the same row and adjacent columns, the 3rd second sub-pixel and the 4th second sub-pixel are second sub-pixels in the same row and adjacent columns, the 1st second sub-pixel and the 4th second sub-pixel are second sub-pixels in the same column and adjacent rows, the 2nd second sub-pixel and the 3rd second sub-pixel are second sub-pixels in the same column and adjacent rows; the distance between the center of the light-emitting region of the 2nd second sub-pixel and the center of the light-emitting region of the 3rd second sub-pixel in the column direction is not equal to the distance between the center of the light-emitting region of the 1st second sub-pixel and the center of the light-emitting region of the 4th second sub-pixel in the column direction.

[0176] For example, referring to Figure 4 , the distance between the center of the light-emitting region of the 2nd second sub-pixel P2 and the center of the light-emitting region of the 3rd second sub-pixel P2 in the column direction D4 is greater than the distance between the center of the light-emitting region of the 1st second sub-pixel P2 and the center of the light-emitting region of the 4th second sub-pixel P2 in the column direction D4. For example, the difference between the two is 4 to 5 micrometers. Of course, the difference between the two is not limited to this range and can be designed according to factors such as the size of different display substrates and the required PPI.

[0177] Corresponding to the above arrangement of pixels, in order to optimize the layout of multiple sub-isolation structures that provide different second electrical signals, save space, and achieve a higher PPI, for example, referring to Figure 4, among the multiple second sub-pixels P2 on the same row extending along the row direction D3, the two ends of the second openings 41 of the multiple second sub-pixels P2 located in the odd-numbered columns are aligned with each other respectively in the column direction D4, and the two ends of the second openings 41 of the multiple second sub-pixels P2 located in the even-numbered columns are aligned with each other respectively in the column direction D4; for two adjacent rows of second sub-pixels P2 extending along the row direction D3, the distances between the centers of the second openings 41 of two adjacent second sub-pixels P2 in adjacent columns in the column direction D4 are not equal.

[0178] For example, the distance between the center of the second opening 41 of the second sub-pixel P2 numbered 2 and the center of the second opening 41 of the second sub-pixel P2 numbered 3 in the column direction D4 is greater than the distance between the center of the second opening 41 of the second sub-pixel P2 numbered 1 and the center of the second opening 41 of the second sub-pixel P2 numbered 4 in the column direction D4.

[0179] For example, the distance between the second light-emitting region of the second sub-pixel P2 arranged adjacent to each other in the first direction D1 and the third light-emitting region of the third sub-pixel P3 in the first direction D1 is not equal to the distance between the second light-emitting regions of two adjacent second sub-pixels P2 arranged in the row direction D3 in the row direction D3; correspondingly, the distance L9 between the second sub-isolation structure 40b of the second sub-pixel P2 arranged adjacent to each other in the first direction D1 and the third sub-isolation structure 40c of the third sub-pixel P3 in the first direction D1 is not equal to the distance L10 between the second sub-isolation structures 40b of two adjacent second sub-pixels P2 arranged in the row direction D3 in the row direction D3. In this way, it is possible to design the spacing between multiple sub-isolation structures providing different second electrical signals according to the above distance relationship between the light-emitting regions of the sub-pixels, further optimize the layout of multiple sub-isolation structures providing different second electrical signals, save space while reducing the heat generation of the display substrate, and achieve a higher PPI.

[0180] For example, refer to Figure 4, the distance in the first direction D1 between the second light-emitting region of the second sub-pixel P2 and the third light-emitting region of the third sub-pixel P3 that are arranged adjacent to each other in the first direction D1 is not equal to the distance in the first direction D1 between the second light-emitting region of the second sub-pixel P2 and the third light-emitting region of the third sub-pixel P3 that are arranged adjacent to each other in the second direction D2; correspondingly, the distance L11 in the first direction D1 between the second sub-isolation structure 40b of the second sub-pixel P2 and the third sub-isolation structure 40c of the third sub-pixel P3 that are arranged adjacent to each other in the first direction D1 is not equal to the distance L12 in the first direction D1 between the second sub-isolation structure 40b of the second sub-pixel P2 and the third sub-isolation structure 40c of the third sub-pixel P3 that are arranged adjacent to each other in the second direction D2. In this way, the spacing between a variety of sub-isolation structures that provide different second electrical signals can be designed according to the relationship of the above distances between the light-emitting regions of the sub-pixels, further optimizing the layout of a variety of sub-isolation structures that provide different second electrical signals, saving space while reducing the heat generation of the display substrate, optimizing the layout of the pixel structure, and achieving a higher PPI.

[0181] Figure 5 is a partial plan view of another display substrate provided by an embodiment of the present invention. Figure 5 The shown embodiment and Figure 3 have the following differences. Other features except these differences, such as the specific structural characteristics of each sub-isolation structure, the light-emitting layer, the pixel defining layer, the setting methods of the first electrode and the second electrode, etc., are the same as those of Figure 3 the shown embodiment.

[0182] For example, referring to Figure 5 , the display substrate 100 includes a pixel array. The pixel array includes a plurality of pixel units arranged in an array. At least one pixel unit includes a second sub-pixel P2, and in the first direction D1, it is respectively located at the second sub-pixel P2 (i.e., Figure 5On both sides of the second sub-pixel P2 (sub-pixel No. 2) in it, there are two first sub-pixels P1, and on both sides of the one second sub-pixel P2 in the second direction D2, there are two third sub-pixels P3; the two first sub-pixels P1 are the first sub-pixel P1 of No. 1 and the first sub-pixel P1 of No. 2 respectively, and the two third sub-pixels P3 are the third sub-pixel P3 of No. 1 and the third sub-pixel P3 of No. 2 respectively. The first sub-pixel P1 of No. 1 and the third sub-pixel P3 of No. 2 are arranged in the row direction D3, and the first sub-pixel P1 of No. 2 and the third sub-pixel P3 of No. 2 are arranged in the column direction D4. The row direction D3 and the column direction D4 are perpendicular and both intersect with the first direction D1 and the second direction D2; the distance between the center of the first light-emitting area EA1 of the first sub-pixel P1 of No. 1 and the center of the second light-emitting area EA2 of the one second sub-pixel P2 is equal to the distance between the center of the first light-emitting area EA1 of the first sub-pixel P1 of No. 2 and the center of the second light-emitting area EA2 of the one second sub-pixel P2. The distance between the center of the first light-emitting area EA1 of the first sub-pixel P1 of No. 1 and the center of the second light-emitting area EA2 of the third sub-pixel P3 of No. 2 is equal to the distance between the center of the first light-emitting area EA1 of the first sub-pixel P1 of No. 2 and the center of the third light-emitting area EA3 of the third sub-pixel P3 of No. 1. The distance between the center of the first light-emitting area EA1 of the first sub-pixel P1 of No. 1 and the center of the second light-emitting area EA2 of the third sub-pixel P3 of No. 1 is equal to the distance between the center of the first light-emitting area EA1 of the first sub-pixel P1 of No. 2 and the center of the third light-emitting area EA3 of the third sub-pixel P3 of No. 2; the pixel array includes four second sub-pixels P2 surrounding the first sub-pixel P1 of No. 1 and adjacent to the first sub-pixel P1 of No. 1, which are the second sub-pixel P2 of No. 1, the second sub-pixel P2 of No. 2, the second sub-pixel P2 of No. 3, and the second sub-pixel P2 of No. 4 arranged in counterclockwise order; the second sub-pixel P2 of No. 4, the first sub-pixel P1 of No. 1, and the second sub-pixel P2 of No. 2 are arranged in the first direction D1, and the second sub-pixel P2 of No. 1, the first sub-pixel P1 of No. 1, and the second sub-pixel P2 of No. 3 are arranged in the second direction D2; the distance between the center of the second light-emitting area EA2 of the second sub-pixel P2 of No. 1 and the center of the first light-emitting area EA1 of the first sub-pixel P1 of No. 1, the distance between the center of the second light-emitting area EA2 of the second sub-pixel P2 of No. 2 and the center of the first light-emitting area EA1 of the first sub-pixel P1 of No. 1, the distance between the center of the second light-emitting area EA2 of the second sub-pixel P2 of No. 3 and the center of the first light-emitting area EA1 of the first sub-pixel P1 of No. 1, and the distance between the center of the second light-emitting area EA2 of the second sub-pixel P2 of No. 4 and the center of the first light-emitting area EA1 of the first sub-pixel P1 of No. 1 are all equal.

[0183] Correspondingly, in Figure 5In the embodiment shown, the distances between the sub-isolation structures 40 of any two adjacent sub-pixels among the multiple sub-pixels are equal to each other. For example, the distances between the sub-isolation structures 40 of any two sub-pixels among the first sub-pixel P1, the second sub-pixel P2, and the third sub-pixel P3 are equal to each other. In this way, corresponding to the diamond arrangement, the distances between the sub-isolation structures of sub-pixels of different colors are all equal, and it is possible to design corresponding arrangements of multiple sub-isolation structures that provide different second electrical signals according to the characteristics of the diamond arrangement, further optimizing the layout of multiple sub-isolation structures that provide different second electrical signals, saving space while reducing the heat generation of the display substrate and achieving a higher PPI.

[0184] For example, in Figure 5 In the embodiment shown, in order to further optimize the layout of the sub-isolation structure, the distance between the center of the second opening 41 of the first sub-pixel P1 numbered 1 and the center of the second light-emitting region of a second sub-pixel P2 is equal to the distance between the center of the second opening 41 of the first sub-pixel P1 numbered 2 and the center of the second opening 41 of a second sub-pixel P2, the distance between the center of the second opening 41 of the first sub-pixel P1 numbered 1 and the center of the second opening 41 of the third sub-pixel P3 numbered 2 is equal to the distance between the center of the second opening 41 of the first sub-pixel P1 numbered 2 and the center of the second opening 41 of the third sub-pixel P3 numbered 1, and the distance between the center of the second opening 41 of the first sub-pixel P1 numbered 1 and the center of the second opening 41 of the third sub-pixel P3 numbered 1 is equal to the distance between the center of the second opening 41 of the first sub-pixel P1 numbered 2 and the center of the second opening 41 of the third sub-pixel P3 numbered 2; the distances between the center of the second opening 41 of the second sub-pixel P2 numbered 1 and the center of the second opening 41 of the first sub-pixel P1, the center of the second opening 41 of the second sub-pixel P2 numbered 2 and the center of the second opening 41 of the first sub-pixel P1, the center of the second opening 41 of the second sub-pixel P2 numbered 3 and the center of the second opening 41 of the first sub-pixel P1, and the center of the second opening 41 of the second sub-pixel P2 numbered 4 and the center of the second opening 41 of the first sub-pixel P1 are all equal.

[0185] For example, in the display substrate provided by any embodiment of the present invention, for each of at least some of the multiple sub-pixels among the multiple sub-pixels, for example, for each sub-pixel that performs a display function, the shape of the positive projection of the second opening 41 of the sub-pixel on the main surface of the substrate 11 is the same as the shape of the light-emitting region of the sub-pixel (the light-emitting regions of the first to third sub-pixels are the first to third light-emitting regions respectively) on the main surface of the substrate 11, and the center of the positive projection of the second opening 41 of the sub-pixel on the main surface of the substrate 11 substantially coincides with the center of the positive projection of the light-emitting region of the sub-pixel on the main surface of the substrate 11. The feature "substantially coincides" here includes the case of complete coincidence and the case where the coincidence error in each direction is within a negligible error range. For example, within a 5% error range of any side length of the second opening of the sub-pixel, it can be considered to meet the requirement of "substantially coincides".

[0186] Figure 6 is a partial plan view of another display substrate provided by an embodiment of the present invention, Figure 5 The shown embodiment and Figure 3 have the following differences.

[0187] For example, referring to Figure 6 , the display substrate 100 includes a pixel array. The pixel array includes multiple rows of sub-pixels extending in the row direction D3 and multiple columns of sub-pixels extending in the column direction D4. The multiple columns of sub-pixels include a first column of sub-pixels and a second column of sub-pixels adjacent to each other; a first sub-pixel P1 and a second sub-pixel P2 adjacent to each other in the first column of sub-pixels, and a third sub-pixel P3 in the second column of sub-pixels form a pixel unit. The pixel array includes multiple pixel units arranged in an array; taking the plane perpendicular to the row direction D3 as the reference plane, in one pixel unit, the positive projections of the first sub-pixel P1 and the second sub-pixel P2 on the reference plane at least partially overlap with the positive projection of the third sub-pixel P3 on the reference plane; the distances between the sub-isolation structures 40 of any two adjacent sub-pixels among the multiple sub-pixels are equal to each other. Figure 6 The arrangement of the pixels shown has the following advantages: The length of the planar pattern of a pixel unit in the first direction D1 and the length in the second direction D2 are closer to being equal. For example, the planar pattern of a pixel unit is closer to a square, which is beneficial to improving the color display uniformity of the entire display panel, thereby improving the display effect. Under this arrangement condition, when the distances between the centers of the light-emitting regions of any two adjacent sub-pixels among the multiple sub-pixels are substantially equal, the distances between the sub-isolation structures 40 of any two adjacent sub-pixels among the multiple sub-pixels are equal to each other; when the distances between the centers of the light-emitting regions of two adjacent sub-pixels among the multiple sub-pixels are not equal, the distances between the sub-isolation structures 40 of the two adjacent sub-pixels are not equal to better adapt to Figure 6Each sub-isolation structure is designed based on the spacing between adjacent sub-pixels in the pixel arrangement shown.

[0188] For example Figure 6 The pixel arrangement shown is mostly used in large-size display panels, such as display panels larger than 50 inches, or in products with lower resolutions such as watches.

[0189] For example, in Figures 3 - 6 In any of the embodiments shown, the center of the light-emitting area of ​​a sub-pixel and the center of the planar shape of the second opening exposed by the sub-isolation structure of the sub-pixel basically coincide with each other in a direction perpendicular to the main surface of the substrate 11, so that each sub-isolation structure can be laid out in accordance with the arrangement of each sub-pixel, which is beneficial to the rational use of limited space to set up each sub-isolation structure that provides different second electrical signals, thereby improving PPI.

[0190] For example, the minimum resolution (Pixel Per Inch, PPI) of the display substrate 100 ranges from 400 to 800, and the distance between the sub-isolation structures 40 of two adjacent sub-pixels in the plurality of sub-pixels is greater than or equal to 3 μm and less than or equal to 10 μm, so as to meet the requirements of the manufacturing process of the display substrate, and the minimum distance between the sub-isolation structures 40 of two adjacent sub-pixels in the plurality of sub-pixels is the minimum exposure accuracy of 3 μm that can be achieved in the current manufacturing process of the sub-isolation structure, and the size of the reserved space for setting the sub-isolation structure is allowed under the consideration of a higher PPI, and the distance between the sub-isolation structures 40 of two adjacent sub-pixels cannot be too large. Of course, the resolution of the display substrate 100 is not limited to the above range, and the above range of the minimum resolution of the display substrate is only exemplary.

[0191] For example, refer to Figure 3 , a plurality of second sub-isolation structures are electrically connected to each other through a first connection structure C1, and the first connection structure C1 is disposed in the same layer as the second sub-isolation structure 40b and forms a continuous and integrated structure. For example, the first connection structure C1 includes a plurality of first sub-connection structures C11 connecting two adjacent second sub-isolation structures 40b in the same row of sub-pixels and a plurality of second sub-connection structures C12 connecting two adjacent second sub-isolation structures 40b in the same column of sub-pixels.

[0192] For example, each first sub-connection structure C11 is in the shape of a bar extending along the row direction, and each second sub-connection structure C12 is in the shape of a bar extending along the column direction.

[0193] In other embodiments, the first connection structure C1 only includes a plurality of first sub-connection structures C11 that connect two adjacent second sub-isolation structures 40b in the same row of pixels, or the first connection structure C1 only includes a plurality of second sub-connection structures C12 that connect two adjacent second sub-isolation structures 40b in the same column of pixels.

[0194] For example, a plurality of first sub-isolation structures 40a are electrically connected to each other through a second connection structure (not shown in the figure), and the second connection structure is disposed on a different layer from the first sub-isolation structure 40a; a plurality of third sub-isolation structures 40c are electrically connected to each other through a third connection structure (not shown in the figure), and the third connection structure is disposed on a different layer from the third sub-isolation structure 40c.

[0195] For example, the second connection structure and the third connection structure are located on the side of the isolation structure 40 close to the substrate 11. For example, the second connection structure and the third connection structure may be disposed on the same layer. For example, the second connection structure and the third connection structure are on the same layer as the first electrode 31. Or, in some embodiments, the first electrode 31 is connected to the Figure 1 shown pixel driving circuit 13 through a transfer electrode, and the second connection structure and the third connection structure may also be on the same layer as the transfer electrode, the transfer electrode.

[0196] In other embodiments, the second connection structure and the third connection structure may also be disposed on different layers.

[0197] For example, the light-emitting layer 50 may further include: at least one light-emitting functional layer FL. The light-emitting functional layer FL may be a hole injection layer (Hole Inject Layer, abbreviated as HIL), a hole transport layer (Hole Transport Layer, abbreviated as HTL), an electron blocking layer (Electron Blocking Layer, abbreviated as EBL), a hole blocking layer (Hole Blocking Layer, abbreviated as HBL), an electron transport layer (Electron Transport Layer, abbreviated as ETL), or an electron injection layer (Electron InjectLayer, abbreviated as EIL).

[0198] Figure 7A For Figure 2 the enlarged schematic diagram of the local L in; Figure 7B is the structural schematic diagram of a sub-light-emitting layer. Refer to Figure 7A, when the light-emitting layer 50 includes a hole injection layer 52, a hole transport layer 53, and an electron blocking layer (not shown in the figure), the hole injection layer 52, the hole transport layer 53, and the electron blocking layer are sequentially stacked between the anode 31 layer and the light-emitting sublayer 51. When the light-emitting layer 50 includes a hole blocking layer, an electron transport layer 54, and an electron injection layer 55, the hole blocking layer (not shown in the figure), the electron transport layer 54, and the electron injection layer 55 are sequentially stacked between the light-emitting sublayer 51 and the second electrode layer 60.

[0199] For example, referring to Figure 2 and Figure 6 , the light-emitting layer further includes a partial non-light-emitting portion 502 that is disconnected from a plurality of sub-light-emitting layers 501 located in the light-emitting regions of a plurality of sub-pixels. The sub-light-emitting layer 501 is at least located within each first opening 21 and is the actually light-emitting portion; the non-light-emitting portion 502 is located on the side of the isolation structure 40 away from the backplane 10, and the non-light-emitting portion 502 does not emit light during the operation of the display substrate.

[0200] One first sub-light-emitting layer 501a is correspondingly disposed with the above-mentioned one first sub-opening 211 and is in contact with the anode corresponding to the first sub-opening 211. One second sub-light-emitting layer 501b is correspondingly disposed with one second sub-opening 212 and is in contact with the anode corresponding to the second sub-opening 212. One third sub-light-emitting layer 501c is correspondingly disposed with one third sub-opening 213 and is in contact with the anode corresponding to the third sub-opening 213.

[0201] For example, the sub-light-emitting layer 501 is located within each first opening 21. Specifically, one first sub-light-emitting layer 501a is located within one first sub-opening 211, one second sub-light-emitting layer 501b is located within one second sub-opening 212, and one third sub-light-emitting layer 501c is located within one third sub-opening 213.

[0202] For another example, referring to Figure 2 , a part of the sub-light-emitting layer 501 is located within the first opening 21, and another part of the sub-light-emitting layer 501 is in contact with the sidewall of the first opening 21 and overlaps the pixel defining layer 20. Specifically, one first sub-light-emitting layer 501a extends from within the first sub-opening 211 along the sidewall of the first sub-opening 211 to the pixel defining layer 20. One second sub-light-emitting layer 501b extends from within the second sub-opening 212 along the sidewall of the second sub-opening 212 to the pixel defining layer 20. One third sub-light-emitting layer 501c extends from within the third sub-opening 213 along the sidewall of the third sub-opening 213 to the pixel defining layer 20.

[0203] For example, the part of the sub-light-emitting layer 501 located within the first opening 21 is in contact with the part of the anode 31 exposed through the first opening 21, so that the electrical signal transmitted by the anode 31 can be received.

[0204] For example, the top view shape of the non-light-emitting part 502 can be approximately a mesh structure. In the thickness direction of the backplane 10, a first opening 21 and a second opening 41 are correspondingly arranged, and each of the first sub-light-emitting layers 501a, each of the second sub-light-emitting layers 501b, and each of the third sub-light-emitting layers 501c are correspondingly arranged with each of the second openings 41.

[0205] There is a disconnection between each of the first sub-light-emitting layers 501a and a part of the adjacent non-light-emitting part 502, a disconnection between each of the second sub-light-emitting layers 501b and a part of the adjacent non-light-emitting part 502, and a disconnection between each of the third sub-light-emitting layers 501c and a part of the adjacent non-light-emitting part 502. Each non-light-emitting part 502 does not emit light.

[0206] For example, referring to Figure 2 , the second electrode 60 further includes a second part 602 that is disconnected from the first part 601 of the second electrode 60, and the second part 602 of the second electrode 60 is located on the side of the isolation structure 40 away from the substrate 11.

[0207] A part of the first part 601 of the second electrode 60 is located in the area corresponding to the second opening 41, and another part of the first part 601 of the second electrode 60 is in contact with the isolation structure 40. The second part 602 of the second electrode 60 is located on the side of the non-light-emitting part 502 away from the isolation structure 40.

[0208] For example, the first part 601 of the second electrode 60 includes: a plurality of first sub-electrode layers 601a, a plurality of second sub-electrode layers 601b, and a plurality of third sub-electrode layers 601c.

[0209] The first sub-electrode layers 601a, the second sub-electrode layers 601b, and the third sub-electrode layers 601c are spaced apart from each other and not electrically connected. For example, each of the first sub-electrode layers 601a can be continuous and unbroken. Each of the second sub-electrode layers 601b can be continuous and unbroken. Each of the third sub-electrode layers 601c can be continuous and unbroken.

[0210] One first sub-electrode layer 601a is correspondingly arranged with the above-mentioned one first sub-opening 211 and is in contact with the first sub-light-emitting layer 501a. One second sub-electrode layer 601b is correspondingly arranged with one second sub-opening 212 and is in contact with the second sub-light-emitting layer 501b. One third sub-electrode layer 601c is correspondingly arranged with one third sub-opening 213 and is in contact with the third sub-light-emitting layer 501c.

[0211] The top view shape of the second part 602 of the second electrode 60 can be approximately a mesh structure, and the mesh holes of the mesh structure are correspondingly arranged with a plurality of second openings 41. Each of the above first sub-electrode layers 601a, each second sub-electrode layer 601b, and each third sub-electrode layer 601c are correspondingly arranged with each second opening 41 (or each first opening 21).

[0212] Each first sub-electrode layer 601a is disconnected from the second part 602 of the adjacent second electrode 60 and is in contact with the adjacent sub-isolation structure for electrical connection. Each second sub-electrode layer 601b is disconnected from the second part 602 of the adjacent second electrode 60 and is in contact with the adjacent sub-isolation structure for electrical connection. Each third sub-electrode layer 601c is disconnected from the second part 602 of the adjacent second electrode 60 and is in contact with the adjacent sub-isolation structure for electrical connection.

[0213] Thus, by the first part 601 of the second electrode 60 being in contact with the corresponding sub-isolation structure, the sub-isolation structure functions as an auxiliary electrode to realize the connection between the first parts 601 of the second electrodes of the sub-pixels of the same color.

[0214] Reference Figure 2 and Figure 7A , among the multiple sub-isolation structures, at least some of the sub-isolation structures in each sub-isolation structure include a main body part 401 and an upper part 402. The upper part 402 is located on the side of the main body part 401 away from the substrate 11, and the orthographic projection of the main body part 401 on the substrate 11 is located within the projection of the upper part 402 on the substrate 11; the first part 601 of the second electrode 60 is in direct contact with the side wall of the main body part 401 to realize the electrical connection between the first part 601 of the second electrode 60 and the sub-isolation structure.

[0215] For example, referring to Figure 7A , in each of at least some of the multiple sub-pixels, there is a gap G between the sub-isolation structure and the sub-light-emitting layer. For example, there is a gap G between the main body part 401 and the sub-light-emitting layer. The first part 601 of the second electrode 60 includes a filling part 601f filled in the gap G. The filling part 601f separates the sub-light-emitting layer 501 from the sub-isolation structure, and the sub-light-emitting layer 501 is not in contact with the sub-isolation structure. Thus, the display effect of the display substrate 100 can be improved, preventing the sub-light-emitting layer 501 from overlapping on the sub-isolation structure, preventing the sub-light-emitting layer from overlapping on the main body part 401, and preventing the area of the part of the sub-light-emitting layer 501 corresponding to each first opening 21 (here, the part of the sub-light-emitting layer 501 corresponding to each first opening 21 refers to the first sub-light-emitting layer, the second sub-light-emitting layer, or the third sub-light-emitting layer) from being large, thereby preventing the distance between adjacent two light-emitting devices from being small and avoiding the crosstalk of the light emitted by adjacent two light-emitting devices.

[0216] For example, for a sub-pixel, the sub-isolation structure surrounds the entire light-emitting region, that is, the planar pattern of the second opening is a closed pattern.

[0217] For example, the filling portion 601f is in direct contact with the sidewall of the main body portion 401 to be electrically connected to the main body portion 401.

[0218] Figure 8 It is a schematic structural diagram of another display substrate provided by an embodiment of the present invention. Refer to Figure 8 , for example, the light-emitting devices of the display substrate 100 can also be in series, that is, the light-emitting devices include a plurality of serially connected light-emitting devices.

[0219] For example, Figure 1 Three light-emitting devices are shown, which are the first light-emitting device 1101, the second light-emitting device 1102, and the third light-emitting device 1103 respectively, and are at least partially located in Figure 2 The light-emitting devices in the first sub-opening 211, the second sub-opening 212, and the third sub-opening 213 of the three sub-pixels shown can also be Figure 8 The first light-emitting device 1101, the second light-emitting device 1102, and the third light-emitting device 1103 shown. Figure 8 It only schematically shows the positional relationship between the first electrode, the second electrode, and the light-emitting unit of each light-emitting device, and does not represent the actual layer shape in the display substrate.

[0220] For example, as Figure 8 shown, the first light-emitting device 1101 and the second light-emitting device 1102 respectively include a first electrode 31, a second electrode 60 (for example Figure 8 the first part 601 of the second electrode 60 shown in), a first light-emitting unit 112, a second light-emitting unit 114, and a charge generation layer 113. The first light-emitting unit 112 is located between the first electrode 31 and the second electrode 60, the second light-emitting unit 114 is located between the first light-emitting unit 112 and the second electrode 60, and the charge generation layer 113 is located between the first light-emitting unit 112 and the second light-emitting unit 114. The first light-emitting unit 112 and the second light-emitting unit 114 of the first light-emitting device 1101 are configured to emit light of the same color, the first light-emitting unit 112 and the second light-emitting unit 114 of the second light-emitting device 1103 are configured to emit light of the same color, and the first light-emitting device 1101 and the second light-emitting device 1102 are arranged adjacent to each other and are configured to emit light of different colors. For the convenience of explaining the first light-emitting device 1101 and the second light-emitting device 1102, Figure 8 it is schematically shown that the leftmost light-emitting device is the first light-emitting device 1101 and the middle light-emitting device is the second light-emitting device 1102, but it is not a limitation on the embodiments of the present invention.

[0221] As Figure 8 shown, the first light-emitting unit 112 includes a first light-emitting layer 1124 and a first adjustment layer 1123 located on a side of the first light-emitting layer 1124 close to the first electrode 31. The second light-emitting unit 114 includes a second light-emitting layer 1143 and a second adjustment layer 1142 located on a side of the second light-emitting layer 1143 close to the charge generation layer 113.

[0222] For example, the first adjustment layer may be at least one of an electron blocking layer or a hole transport layer. For example, the second adjustment layer may be at least one of an electron blocking layer or a hole transport layer.

[0223] For example, the wavelength of the light emitted by the first light-emitting device is greater than the wavelength of the light emitted by the second light-emitting device. For example, the first light-emitting device may be a red light-emitting device, and the second light-emitting device may be a green light-emitting device. For example, the first light-emitting device may be a red light-emitting device, and the second light-emitting device may be a blue light-emitting device. For example, the first light-emitting device may be a green light-emitting device, and the second light-emitting device may be a blue light-emitting device.

[0224] It should be noted that the adjacent arrangement of the first light-emitting device and the second light-emitting device means that there are no other light-emitting devices between the first light-emitting device and the second light-emitting device, and a film layer or structure for isolation may be included between the first light-emitting device and the second light-emitting device.

[0225] In some examples, as Figure 8 shown, the third light-emitting device 1103 includes a first electrode 31, a second electrode 60, a first light-emitting unit 112, a second light-emitting unit 114, and a charge generation layer 113. The first light-emitting unit 112 is located between the first electrode 31 and the second electrode 60, the second light-emitting unit 114 is located between the first light-emitting unit 112 and the second electrode 60, the charge generation layer 113 is located between the first light-emitting unit 112 and the second light-emitting unit 114, and the first light-emitting unit 112 and the second light-emitting unit 114 of the third light-emitting device 1103 are configured to emit light of the same color.

[0226] The third light-emitting device is configured to emit light of a different color from the first light-emitting device and the second light-emitting device, and the third light-emitting device is adjacent to at least one of the first light-emitting device and the second light-emitting device. For example, the first light-emitting device 1101 is configured to emit red light, the second light-emitting device 1102 is configured to emit green light, and the third light-emitting device 1103 is configured to emit blue light. For example, the first light-emitting device is a red light-emitting device, the second light-emitting device is a green light-emitting device, and the third light-emitting device is a blue light-emitting device.

[0227] As Figure 8As shown, for any one of the first to third light-emitting devices, the first light-emitting unit 112 further includes a hole injection layer 1121 and a first hole transport layer 1122 located on the side of the first adjustment layer 1123 close to the first electrode 31, and the hole injection layer 1121 is closer to the first electrode 31 than the first hole transport layer 1122. The first light-emitting unit 112 further includes a first hole blocking layer 1125 and a first electron transport layer 1126 located on the side of the first light-emitting layer 1124 away from the first electrode 31, and the first electron transport layer 1126 is farther from the first electrode 31 than the first hole blocking layer 1125. For example, the first adjustment layer is also referred to as the first electron blocking layer.

[0228] For example, the hole injection layers of multiple light-emitting devices have equal thicknesses. For example, the first hole transport layers of multiple light-emitting devices have equal thicknesses. For example, the first hole blocking layers of multiple light-emitting devices have equal thicknesses. For example, the first electron transport layers of multiple light-emitting devices have equal thicknesses.

[0229] In some examples, as Figure 1 shown, the charge generation layer 113 includes a p-type charge generation layer 1132 and an n-type charge generation layer 1131 arranged in a stacked manner, and the p-type charge generation layer 1132 is located between the n-type charge generation layer 1131 and the second light-emitting unit 114. For example, the p-type charge generation layers 1132 of multiple light-emitting devices 110 have equal thicknesses. For example, the n-type charge generation layers 1131 of multiple light-emitting devices 110 have equal thicknesses.

[0230] In some examples, as Figure 1 shown, the second light-emitting unit 114 further includes a second hole transport layer 1141 located on the side of the second adjustment layer 1142 close to the first electrode 31. The second light-emitting unit 114 further includes a second hole blocking layer 1144, a second electron transport layer 1145, and an electron injection layer 1146 located on the side of the second light-emitting layer 1143 close to the second electrode 60. For example, the second adjustment layer is also referred to as the second electron blocking layer.

[0231] Figure 9 is a schematic cross-sectional view of a partial structure of another display substrate provided by an embodiment of the present invention; Figure 10 is Figure 9 an enlarged schematic view of the partial L in Figures 9 - 10 The display substrate shown in Figure 2 and Figure 7A The display substrate shown has the following differences.

[0232] For example, each of the at least partial sub-isolation structures further includes a lower portion 403, which is located on a side of the main body portion 401 close to the substrate 11, and a positive projection of the main body portion 401 on the substrate 11 is located within a projection of the lower portion 403 on the substrate 11; the lower portion 403 is conductive and is applied with a second electrical signal, the lower portion 403 has an upper surface facing away from the substrate 11 and side surfaces intersecting with the upper surface; a first portion 601 of the second electrode 60 further includes an edge portion 601e covering the upper surface of the lower portion 403, and the edge portion 601e is in direct contact with the side wall of the main body portion 401 and the upper surface of the lower portion 403. The filling portion 601f located in the interval G is in direct contact with the side surface of the lower portion 403 and the pixel defining layer 20, so as to electrically connect the first portion 601 of the second electrode 60 with an adjacent sub-isolation structure, and prevent the sub-isolation structure at the contact position between the two from undergoing electrochemical corrosion.

[0233] For example, in one embodiment, the shape of a cross-section of the main body portion 401 along a direction perpendicular to the main surface of the substrate 11 is trapezoidal (as Figure 7A ) or rectangular (as Figure 10 ), of course, it is not limited to these two shapes.

[0234] For example, referring to Figure 10 , a positive projection of the main body portion 401 on the substrate 11 is located within a projection of the upper portion 402 on the substrate 11, and a positive projection of the main body portion 401 on the substrate 11 is located within a projection of the lower portion 403 on the substrate 11. Thus, the shape of a cross-sectional view of the entire sub-isolation structure formed by the main body portion 401, the upper portion 402, and the lower portion 403 can be approximately in the shape of a "worker" character, thereby reducing the difficulty of contact between the first portion 601 of the second electrode 60 and the main body portion 401, ensuring effective connection between portions of the first portion 601 of the second electrode 60 corresponding to different first openings 21, and being beneficial to improving the display uniformity of the display substrate 100.

[0235] Figures 9 - 10 Other features not mentioned in the embodiments shown and corresponding technical effects, including the pixel arrangement method and the setting method of the corresponding sub-isolation structure, etc., are the same as those described previously in Figure 2 、 Figures 3 - 6 shown.

[0236] For example, the isolation structure 40 includes a conductive material, and the activity of the conductive material of the isolation structure 40 is weaker than that of the material of the second electrode 60 to avoid electrochemical corrosion between the isolation structure 40 and the second electrode 60. For example, the conductive material of the isolation structure 40 is a metal material, and the metal material includes at least one of aluminum, copper, silver, titanium, and molybdenum. For example, the material of the second electrode 60 also includes a metal material, and the metal material of the second electrode 60 includes, for example, at least one of aluminum, silver, and magnesium. Also, for example, the material of the second electrode 60 can also include an alloy material. In short, it is sufficient that the activity of the metal material of the isolation structure 40 is weaker than that of the metal material of the second electrode 60.

[0237] Here, the "activity of the metal material" refers to the ability of the atoms of the metal element to lose electrons. In the periodic table of elements, the metallicity is stronger the further to the lower left and weaker the further to the upper right. For example, the activity of copper is weaker than that of magnesium.

[0238] For example, the material of the anode 31 can be an oxide, such as ITO (Indium Tin Oxide), IZO (Indium Zinc Oxide), etc. The material of the anode 31 can also be a composite material, such as a composite material composed of a metal material and an oxide material, such as Ag (Argentum) / ITO, Al (Aluminum) / ITO, Ag / IZO, Al / IZO, etc.

[0239] Figure 11 is a schematic diagram of a display device provided by an embodiment of the present invention. Refer to Figure 11 , at least one embodiment of the present invention further provides a display device 1000, and the display device 1000 includes any display substrate 100 provided by the embodiments of the present invention. The display device 1000 can be, for example, a display panel, or can also be any product or component with a display function such as a display, an OLED panel, an OLED TV, an electronic paper, a mobile phone, a tablet computer, a notebook computer, a digital photo frame, a navigator, etc. Of course, the display device provided by the embodiments of the present invention is not limited to the types listed above.

[0240] Correspondingly, the display panel and the display device provided by the embodiments of the present invention both have the technical effects of the pixel circuit and the display substrate provided by the present invention.

[0241] There are also the following points to note:

[0242] (1) The drawings of the embodiments of the present invention only relate to the structures involved in the embodiments of the present invention, and other structures can refer to the general design.

[0243] (2) For clarity, in the drawings used to describe the embodiments of the present utility model, the thickness of layers or regions is enlarged or reduced, that is, these drawings are not drawn to actual scale.

[0244] (3) Without conflict, the embodiments of the present utility model and the features in the embodiments can be combined with each other to obtain new embodiments.

[0245] The above description is only an exemplary embodiment of the present utility model and is not intended to limit the protection scope of the present utility model. The protection scope of the present utility model is determined by the appended claims.

Claims

1. A display substrate, characterized in that, Comprising: A substrate having a main surface; A pixel defining layer disposed on the main surface of the substrate and defining a plurality of first openings; A first electrode disposed on the main surface of the substrate and applied with a first electrical signal, wherein at least a portion of the first electrode is exposed by the first opening; An isolation structure disposed on a side of the pixel defining layer away from the substrate and defining a plurality of second openings, wherein a positive projection of one of the first openings on the main surface of the substrate is located within a positive projection range of one of the second openings on the substrate; and A second electrode including a first portion at least partially located within the second opening, wherein the first portion of the second electrode is applied with a second electrical signal; The isolation structure includes a plurality of sub-isolation structures, and the plurality of sub-isolation structures include a first sub-isolation structure and a second sub-isolation structure that are spaced apart from each other and disconnected; The first portion of the second electrode includes a first sub-electrode and a second sub-electrode that are respectively located in different second openings and are disconnected from each other; The first sub-electrode is electrically connected to the first sub-isolation structure, and the second sub-electrode is electrically connected to the second sub-isolation structure.

2. The display substrate according to claim 1, wherein The second electrical signal includes a first sub-signal and a second sub-signal, the first sub-isolation structure is applied with the first sub-signal, the second sub-isolation structure is applied with the second sub-signal, and the values of the first sub-signal and the second sub-signal are different.

3. The display substrate according to claim 2, wherein The difference between the second electrical signal and the first sub-signal is different from the difference between the second electrical signal and the second sub-signal.

4. The display substrate according to claim 2, wherein The isolation structure further includes a third sub-isolation structure, and the third sub-isolation structure is spaced apart from both the first sub-isolation structure and the second sub-isolation structure; The second electrical signal further includes a third sub-signal, the third sub-isolation structure is applied with the third sub-signal, and the values of the first sub-signal, the second sub-signal, and the third sub-signal are different from each other; the differences between the second electrical signal and the first sub-signal, the second electrical signal and the second sub-signal, and the second electrical signal and the third sub-signal are different from each other; The isolation structure includes a plurality of the first sub-isolation structures, a plurality of the second sub-isolation structures, and a plurality of the third sub-isolation structures, the plurality of the first sub-isolation structures are electrically connected to each other, the plurality of the second sub-isolation structures are electrically connected to each other, and the plurality of the third sub-isolation structures are electrically connected to each other.

5. The display substrate according to claim 4, wherein The display substrate includes a plurality of sub-pixels arranged in an array, the plurality of sub-pixels include a first sub-pixel, a second sub-pixel, and a third sub-pixel, and the first sub-isolation structure, the second sub-isolation structure, and the third sub-isolation structure are respectively located in the first sub-pixel, the second sub-pixel, and the third sub-pixel; The first opening includes a first sub-opening, a second sub-opening, and a third sub-opening; the first sub-pixel includes a first light-emitting region at least partially located in the first sub-opening; the second sub-pixel includes a second light-emitting region at least partially located in the second sub-opening; the third sub-pixel includes a third light-emitting region at least partially located in the third sub-opening.

6. The display substrate according to claim 5, characterized in that, The first sub-pixel emits light of a first color, the second sub-pixel emits light of a second color, the third sub-pixel emits light of a third color, and the first color, the second color, and the third color are different from each other.

7. The display substrate according to claim 4, wherein The distance between the adjacent first sub-isolation structure and the second sub-isolation structure is a first distance, the distance between the adjacent first sub-isolation structure and the third sub-isolation structure is a second distance, and the distance between the adjacent second sub-isolation structure and the third sub-isolation structure is a third distance; On the same plane parallel to the main surface of the substrate, at least two of the lateral distances of the first distance, the lateral distance of the second distance, and the lateral distance of the third distance are different, and the lateral direction is the direction parallel to the main surface of the substrate.

8. The display substrate according to claim 7, wherein The display substrate includes a pixel array, the pixel array includes a plurality of sub-pixels arranged in an array, and the plurality of sub-pixels include a first sub-pixel, a second sub-pixel, and a third sub-pixel; the plurality of sub-pixels form a plurality of pixel units, the pixel array includes the plurality of pixel units arranged in an array, and at least one of the pixel units includes one of the second sub-pixels, two of the first sub-pixels respectively located on two sides of the one second sub-pixel in a first direction, and two of the third sub-pixels respectively located on two sides of the one second sub-pixel in a second direction; The two first sub-pixels are a No. 1 first sub-pixel and a No. 2 first sub-pixel respectively, the two third sub-pixels are a No. 1 third sub-pixel and a No. 2 third sub-pixel respectively, the No. 1 first sub-pixel and the No. 2 third sub-pixel are arranged in a row direction, the No. 2 first sub-pixel and the No. 2 third sub-pixel are arranged in a column direction, and the row direction and the column direction are perpendicular to each other and both intersect with the first direction and the second direction; The distance between the center of the first light-emitting region of the No. 1 first sub-pixel and the center of the second light-emitting region of the one second sub-pixel is less than the distance between the center of the first light-emitting region of the No. 2 first sub-pixel and the center of the second light-emitting region of the one second sub-pixel, and the distance between the center of the first light-emitting region of the No. 1 first sub-pixel and the center of the second light-emitting region of the No. 2 third sub-pixel is less than the distance between the center of the first light-emitting region of the No. 2 first sub-pixel and the center of the third light-emitting region of the No. 1 third sub-pixel; The pixel array includes four second sub-pixels that surround and are adjacent to the first sub-pixel No. 1, namely the second sub-pixel No. 1, the second sub-pixel No. 2, the second sub-pixel No. 3, and the second sub-pixel No. 4 arranged in counterclockwise order; the second sub-pixel No. 4, the first sub-pixel No. 1, and the second sub-pixel No. 2 are arranged in the first direction, and the second sub-pixel No. 1, the first sub-pixel No. 1, and the second sub-pixel No. 3 are arranged in the second direction; The distance between the center of the second light-emitting region of the second sub-pixel No. 1 and the center of the first light-emitting region of the first sub-pixel No. 1 is equal to the distance between the center of the second light-emitting region of the second sub-pixel No. 4 and the center of the first light-emitting region of the first sub-pixel No. 1, the distance between the center of the second light-emitting region of the second sub-pixel No. 2 and the center of the first light-emitting region of the first sub-pixel No. 1 is equal to the distance between the center of the second light-emitting region of the second sub-pixel No. 3 and the center of the first light-emitting region of the first sub-pixel No. 1, and the distance between the center of the second light-emitting region of the second sub-pixel No. 1 and the center of the first light-emitting region of the first sub-pixel No. 1 is greater than the distance between the center of the second light-emitting region of the second sub-pixel No. 2 and the center of the first light-emitting region of the first sub-pixel No.

1.

9. The display substrate according to claim 8, wherein The distance between the first sub-isolation structure of the first sub-pixel No. 1 and the second sub-isolation structure of one of the second sub-pixels is less than the distance between the first sub-isolation structure of the first sub-pixel No. 2 and the second sub-isolation structure of one of the second sub-pixels, and the distance between the first sub-isolation structure of the first sub-pixel No. 1 and the third sub-isolation structure of the third sub-pixel No. 2 is less than the distance between the first sub-isolation structure of the first sub-pixel No. 2 and the third sub-isolation structure of the third sub-pixel No.

1.

10. The display substrate according to claim 8, wherein Each of at least some of the multiple sub-pixels respectively includes a corresponding sub-isolation structure and the second opening; The distance between the center of the second opening of the first sub-pixel No. 1 and the center of the second opening of one of the second sub-pixels is less than the distance between the center of the second opening of the first sub-pixel No. 2 and the center of the second opening of one of the second sub-pixels, and the distance between the center of the second opening of the first sub-pixel No. 1 and the center of the second opening of the third sub-pixel No. 2 is less than the distance between the center of the second opening of the first sub-pixel No. 2 and the center of the second opening of the third sub-pixel No. 1; The distance between the center of the second opening of the No. 1 second sub-pixel and the center of the second opening of the No. 1 first sub-pixel is equal to the distance between the center of the second opening of the No. 4 second sub-pixel and the center of the second opening of the No. 1 first sub-pixel. The distance between the center of the second opening of the No. 2 second sub-pixel and the center of the second opening of the No. 1 first sub-pixel is equal to the distance between the center of the second opening of the No. 3 second sub-pixel and the center of the second opening of the No. 1 first sub-pixel. The distance between the center of the second opening of the No. 1 second sub-pixel and the center of the second opening of the No. 1 first sub-pixel is greater than the distance between the center of the second opening of the No. 2 second sub-pixel and the center of the second opening of the No. 1 first sub-pixel.

11. The display substrate according to claim 8, wherein The distance between the second sub-isolation structure of the No. 1 second sub-pixel and the first sub-isolation structure of the No. 1 first sub-pixel in the second direction is L1. The distance between the second sub-isolation structure of the No. 4 second sub-pixel and the first sub-isolation structure of the No. 1 first sub-pixel in the first direction is L4. The distance between the second sub-isolation structure of the No. 2 second sub-pixel and the first sub-isolation structure of the No. 1 first sub-pixel in the first direction is L2. The distance between the second sub-isolation structure of the No. 3 second sub-pixel and the first sub-isolation structure of the No. 1 first sub-pixel in the second direction is L3, and L1 = L4 > L2 = L3 is satisfied.

12. The display substrate according to claim 8, wherein, The pixel array includes four third sub-pixels that surround the No. 1 first sub-pixel and are adjacent to the No. 1 first sub-pixel, namely the No. 1 third sub-pixel, the No. 2 third sub-pixel, the No. 3 third sub-pixel, and the No. 4 third sub-pixel arranged in counterclockwise order. The No. 1 third sub-pixel, the No. 1 first sub-pixel, and the No. 3 third sub-pixel are arranged in sequence in the row direction. The No. 4 third sub-pixel, the No. 1 first sub-pixel, and the No. 2 third sub-pixel are arranged in sequence in the column direction. The distance between the first sub-isolation structure of the No. 1 first sub-pixel and the third sub-isolation structure of the No. 4 third sub-pixel is L5. The distance between the first sub-isolation structure of the No. 1 first sub-pixel and the third sub-isolation structure of the No. 2 third sub-pixel is L6. The distance between the first sub-isolation structure of the No. 1 first sub-pixel and the third sub-isolation structure of the No. 3 third sub-pixel is L7. The distance between the first sub-isolation structure of the No. 1 first sub-pixel and the third sub-isolation structure of the No. 1 third sub-pixel is L8, and L5 > L6 > L7 = L8 is satisfied.

13. The display substrate according to claim 8, wherein The pixel array includes multiple rows of sub-pixels extending in the row direction and multiple columns of sub-pixels extending in the column direction. The first ends of the second light-emitting regions of multiple second sub-pixels located in the same row extending in the row direction are all on the same straight line extending in the column direction. The second ends of the second light-emitting regions of multiple second sub-pixels located in the same row extending in the row direction, which are opposite to the first ends, are all on the same straight line extending in the row direction. Among two adjacent rows of second sub-pixels, the distances between the centers of the light-emitting regions of the second sub-pixels in each column are all equal; The centers of the first light-emitting region of the first sub-pixel and the third light-emitting region of the third sub-pixel in the same row extending along the row direction are on the same straight line extending along the row direction; The centers of the first light-emitting region of the first sub-pixel and the third light-emitting region of the third sub-pixel in the same column extending along the column direction are not on the same straight line extending along the column direction.

14. The display substrate according to claim 13, wherein The first ends of the second openings of multiple second sub-pixels in the same row extending along the row direction are all on the same straight line extending along the row direction, and the second ends of the second openings of multiple second sub-pixels in the same row extending along the row direction, which are opposite to the first ends in the column direction, are all on the same straight line extending along the row direction; Among two adjacent rows of second sub-pixels, the distances between the centers of the second openings of the second sub-pixels in each column are all equal; The centers of the second openings of the first sub-pixel and the third sub-pixel in the same row extending along the row direction are on the same straight line extending along the row direction; The centers of the second openings of the first sub-pixel and the third sub-pixel in the same column extending along the column direction are not on the same straight line extending along the column direction.

15. The display substrate according to claim 8, wherein Among multiple second sub-pixels in the same row extending along the row direction, the two ends of the second light-emitting regions of multiple second sub-pixels located in odd-numbered columns are respectively aligned with each other in the column direction, and the two ends of the second light-emitting regions of multiple second sub-pixels located in even-numbered columns are respectively aligned with each other in the column direction; For multiple second sub-pixels in the same row, the first ends of the second light-emitting regions of two adjacent second sub-pixels are not aligned with each other in the column direction and the second ends of the second light-emitting regions of two adjacent second sub-pixels are not aligned with each other in the column direction; For two adjacent rows of second sub-pixels extending along the row direction, the distances between the centers of the second light-emitting regions of two adjacent second sub-pixels in adjacent columns are not equal in the column direction.

16. The display substrate according to claim 15, wherein Among multiple second sub-pixels in the same row extending along the row direction, the two ends of the second openings of multiple second sub-pixels located in odd-numbered columns are respectively aligned with each other in the column direction, and the two ends of the second openings of multiple second sub-pixels located in even-numbered columns are respectively aligned with each other in the column direction; For two adjacent rows of second sub-pixels extending along the row direction, the distances between the centers of the second openings of two adjacent second sub-pixels in adjacent columns are not equal in the column direction.

17. The display substrate according to claim 16, wherein The distance between the center of the second opening of the second sub-pixel No. 2 and the center of the second opening of the second sub-pixel No. 3 in the column direction is greater than the distance between the center of the second opening of the second sub-pixel No. 1 and the center of the second opening of the second sub-pixel No. 4 in the column direction.

18. The display substrate according to claim 15, wherein The multiple second sub-pixels in the same column include three second sub-pixels arranged continuously in sequence. Among the three second sub-pixels, the distance in the column direction between the center of the light-emitting region of the first second sub-pixel and the center of the light-emitting region of the second second sub-pixel is less than the distance in the column direction between the center of the light-emitting region of the second second sub-pixel and the center of the light-emitting region of the third second sub-pixel; The distance in the column direction between the second sub-isolation structure of the first second sub-pixel and the second sub-isolation structure of the second second sub-pixel is less than the distance in the column direction between the second sub-isolation structure of the second second sub-pixel and the second sub-isolation structure of the third second sub-pixel.

19. The display substrate according to claim 15, wherein The distance in the first direction between the second sub-isolation structure of the second sub-pixel arranged in the first direction and adjacent to each other and the third sub-isolation structure of the third sub-pixel is not equal to the distance in the row direction between the second sub-isolation structures of two adjacent second sub-pixels arranged in the row direction.

20. The display substrate according to claim 15, wherein The distance in the first direction between the second sub-isolation structure of the second sub-pixel arranged in the first direction and adjacent to each other and the third sub-isolation structure of the third sub-pixel is not equal to the distance in the first direction between the second sub-isolation structures of the second sub-pixels arranged in the second direction and adjacent to each other and the third sub-isolation structure of the third sub-pixel.

21. The display substrate according to claim 8, wherein The display substrate includes a pixel array, and the pixel array includes a plurality of pixel units arranged in an array. At least one of the pixel units includes one of the second sub-pixels, two of the first sub-pixels respectively located on both sides of the one second sub-pixel in the first direction, and two of the third sub-pixels respectively located on both sides of the one second sub-pixel in the second direction; The two first sub-pixels are the No. 1 first sub-pixel and the No. 2 first sub-pixel respectively, the two third sub-pixels are the No. 1 third sub-pixel and the No. 2 third sub-pixel respectively. The No. 1 first sub-pixel and the No. 2 third sub-pixel are arranged in the row direction, the No. 2 first sub-pixel and the No. 2 third sub-pixel are arranged in the column direction, and the row direction is perpendicular to the column direction and both intersect with the first direction and the second direction; The distance between the center of the first light-emitting region of the No. 1 first sub-pixel and the center of the second light-emitting region of the one second sub-pixel is equal to the distance between the center of the first light-emitting region of the No. 2 first sub-pixel and the center of the second light-emitting region of the one second sub-pixel. The distance between the center of the first light-emitting region of the No. 1 first sub-pixel and the center of the second light-emitting region of the No. 2 third sub-pixel is equal to the distance between the center of the first light-emitting region of the No. 2 first sub-pixel and the center of the third light-emitting region of the No. 1 third sub-pixel. The distance between the center of the first light-emitting region of the No. 1 first sub-pixel and the center of the second light-emitting region of the No. 1 third sub-pixel is equal to the distance between the center of the first light-emitting region of the No. 2 first sub-pixel and the center of the third light-emitting region of the No. 2 third sub-pixel; The pixel array includes four second sub-pixels that surround and are adjacent to the first sub-pixel No. 1, namely the second sub-pixel No. 1, the second sub-pixel No. 2, the second sub-pixel No. 3, and the second sub-pixel No. 4 arranged in counterclockwise order; the second sub-pixel No. 4, the first sub-pixel No. 1, and the second sub-pixel No. 2 are arranged in the first direction, and the second sub-pixel No. 1, the first sub-pixel No. 1, and the second sub-pixel No. 3 are arranged in the second direction; The distances between the center of the second light-emitting region of the second sub-pixel No. 1 and the center of the first light-emitting region of the first sub-pixel No. 1, the distance between the center of the second light-emitting region of the second sub-pixel No. 2 and the center of the first light-emitting region of the first sub-pixel No. 1, the distance between the center of the second light-emitting region of the second sub-pixel No. 3 and the center of the first light-emitting region of the first sub-pixel No. 1, and the distance between the center of the second light-emitting region of the second sub-pixel No. 4 and the center of the first light-emitting region of the first sub-pixel No. 1 are all equal; The distances between the sub-isolation structures of any two adjacent sub-pixels among the multiple sub-pixels are equal to each other.

22. The display substrate according to claim 21, characterized in that, The distance between the center of the second opening of the first sub-pixel No. 1 and the center of the second light-emitting region of one of the second sub-pixels is equal to the distance between the center of the second opening of the first sub-pixel No. 2 and the center of the second opening of one of the second sub-pixels. The distance between the center of the second opening of the first sub-pixel No. 1 and the center of the second opening of the third sub-pixel No. 2 is equal to the distance between the center of the second opening of the first sub-pixel No. 2 and the center of the second opening of the third sub-pixel No.

1. The distance between the center of the second opening of the first sub-pixel No. 1 and the center of the second opening of the third sub-pixel No. 1 is equal to the distance between the center of the second opening of the first sub-pixel No. 2 and the center of the second opening of the third sub-pixel No. 2; The distances between the center of the second opening of the second sub-pixel No. 1 and the center of the second opening of the first sub-pixel No. 1, the distance between the center of the second opening of the second sub-pixel No. 2 and the center of the second opening of the first sub-pixel No. 1, the distance between the center of the second opening of the second sub-pixel No. 3 and the center of the second opening of the first sub-pixel No. 1, and the distance between the center of the second opening of the second sub-pixel No. 4 and the center of the second opening of the first sub-pixel No. 1 are all equal.

23. The display substrate according to claim 8, wherein, The display substrate includes a pixel array, which includes multiple rows of sub-pixels extending in the row direction and multiple columns of sub-pixels extending in the column direction. The multiple columns of sub-pixels include a first column of sub-pixels and a second column of sub-pixels adjacent to each other; One first sub-pixel and one second sub-pixel adjacent to each other in the first column of sub-pixels, and one third sub-pixel in the second column of sub-pixels form a pixel unit. The pixel array includes multiple pixel units arranged in an array; Taking the plane perpendicular to the row direction as the reference plane, in one of the pixel units, the orthographic projections of the first sub-pixel and the second sub-pixel on the reference plane at least partially overlap with the orthographic projection of the third sub-pixel on the reference plane; The distances between the sub-isolation structures of any two adjacent sub-pixels among the multiple sub-pixels are equal to or different from each other.

24. The display substrate according to claim 8, wherein In one of the pixel units, a first trapezoid is formed by sequentially connecting the centers of the first light-emitting regions of the two first sub-pixels and the centers of the third sub-light-emitting regions of the two third sub-pixels along the direction around one of the second sub-pixels, and the intersection point of the two diagonals of the first trapezoid is within the range of the second light-emitting region of the second sub-pixel being surrounded.

25. The display substrate according to claim 24, wherein The first trapezoid is an isosceles trapezoid.

26. The display substrate according to claim 25, wherein The upper base and the lower base of the first trapezoid extend along the row direction respectively. The connection line between the center of the first light-emitting region of the No. 1 first sub-pixel and the center of the third light-emitting region of the No. 2 third sub-pixel forms the upper base of the first trapezoid, and the connection line between the center of the third light-emitting region of the No. 1 third sub-pixel and the center of the first light-emitting region of the No. 2 first sub-pixel forms the lower base of the first trapezoid.

27. The display substrate according to claim 24, wherein In one of the pixel units, a third trapezoid is formed by sequentially connecting the centers of the second openings of the two first sub-pixels and the centers of the second openings of the two third sub-pixels along the direction around one of the second sub-pixels, and the intersection point of the two diagonals of the third trapezoid is within the range of the second opening of the second sub-pixel being surrounded.

28. The display substrate according to claim 27, wherein The third trapezoid is an isosceles trapezoid; the upper base and the lower base of the third trapezoid extend along the row direction respectively. The connection line between the center of the second opening of the No. 1 first sub-pixel and the center of the second opening of the No. 2 third sub-pixel forms the upper base of the third trapezoid, and the connection line between the center of the second opening of the No. 1 third sub-pixel and the center of the second opening of the No. 2 first sub-pixel forms the lower base of the third trapezoid.

29. The display substrate according to claim 8, wherein A second trapezoid is formed by sequentially connecting the centers of the second light-emitting regions of the No. 1 second sub-pixel, the second light-emitting region of the No. 2 second sub-pixel P2, the second light-emitting region of the No. 3 second sub-pixel P2, and the second light-emitting region of the No. 4 second sub-pixel P2, and the intersection point of the two diagonals of the second trapezoid is within the range of the first light-emitting region of the No. 1 first sub-pixel.

30. The display substrate according to claim 29, wherein, The second trapezoid is an isosceles trapezoid. The upper base and the lower base of the second trapezoid extend along the row direction respectively. The connection line between the center of the second light-emitting region of the No. 1 second sub-pixel and the center of the second light-emitting region of the No. 2 second sub-pixel forms the upper base of the second trapezoid, and the connection line between the center of the second light-emitting region of the No. 3 second sub-pixel and the center of the second light-emitting region of the No. 4 second sub-pixel forms the lower base of the second trapezoid.

31. The display substrate according to claim 29, wherein The figure formed by successively connecting the centers of the second openings of the No. 1 second sub-pixel, the centers of the second openings of the No. 2 second sub-pixel, the centers of the second openings of the No. 3 second sub-pixel, and the centers of the second openings of the No. 4 second sub-pixel P2 is a fourth trapezoid, and the intersection of the two diagonals of the fourth trapezoid is within the range of the second opening of the No. 1 first sub-pixel.

32. The display substrate according to claim 31, wherein The fourth trapezoid is an isosceles trapezoid. The upper base and the lower base of the fourth trapezoid extend along the row direction. The connection line between the center of the second opening of the No. 1 second sub-pixel and the center of the second opening of the No. 2 second sub-pixel forms the upper base of the fourth trapezoid, and the connection line between the center of the second opening of the No. 3 second sub-pixel and the center of the second opening of the No. 4 second sub-pixel forms the lower base of the fourth trapezoid.

33. The display substrate according to any one of claims 8-32, characterized in that, For each of at least some of the multiple sub-pixels, the shape of the positive projection of the second opening of the sub-pixel on the main surface of the substrate is the same as the shape of the positive projection of the light-emitting region of the sub-pixel on the main surface of the substrate, and the center of the positive projection of the second opening of the sub-pixel on the main surface of the substrate substantially coincides with the center of the positive projection of the light-emitting region of the sub-pixel on the main surface of the substrate.

34. The display substrate according to any one of claims 8-32, characterized in that, The range of the minimum resolution (Pixels Per Inch, PPI) of the display substrate is 400 - 800, and the distance between the sub-isolation structures of two adjacent sub-pixels among the multiple sub-pixels is greater than or equal to 3 μm and less than or equal to 10 μm.

35. The display substrate according to claim 4, wherein Multiple second sub-isolation structures are electrically connected to each other through a first connection structure. The first connection structure is provided on the same layer as the second sub-isolation structure and forms a continuous integral structure; Multiple first sub-isolation structures are electrically connected to each other through a second connection structure. The second connection structure is provided on a different layer from the first sub-isolation structure; Multiple third sub-isolation structures are electrically connected to each other through a third connection structure. The third connection structure is provided on a different layer from the third sub-isolation structure.

36. The display substrate according to claim 35, wherein The first connection structure includes a first sub-connection structure connecting two adjacent second sub-isolation structures in the same row of sub-pixels or a second sub-connection structure connecting two adjacent second sub-isolation structures in the same column of pixels.

37. The display substrate according to claim 36, wherein The first connection structure includes a first sub-connection structure connecting two adjacent second sub-isolation structures in the same row of sub-pixels and a second sub-connection structure connecting two adjacent second sub-isolation structures in the same column of pixels.

38. The display substrate according to claim 36, wherein The first sub-connection structure is in a strip shape extending along the row direction, and the second sub-isolation structure is in a strip shape extending along the column direction.

39. The display substrate according to claim 35, wherein The second connection structure and the third connection structure are located on the side of the isolation structure close to the substrate.

40. The display substrate according to any one of claims 1-32, characterized in that, For each of at least some of the sub-isolation structures, the sub-isolation structure includes a main body portion and an upper portion. The upper portion is located on the side of the main body portion away from the substrate, and the positive projection of the main body portion on the substrate is within the projection of the upper portion on the substrate; The first part of the second electrode is in direct contact with the side wall of the main body portion.

41. The display substrate according to claim 40, wherein, The display substrate includes a plurality of sub-pixels arranged in an array. The plurality of sub-pixels include a first sub-pixel, a second sub-pixel, and a third sub-pixel. The isolation structure further includes a third sub-isolation structure, and the third sub-isolation structure is spaced apart from both the first sub-isolation structure and the second sub-isolation structure. The first sub-isolation structure, the second sub-isolation structure, and the third sub-isolation structure are respectively located in the first sub-pixel, the second sub-pixel, and the third sub-pixel; the first opening includes a first sub-opening, a second sub-opening, and a third sub-opening; the first sub-pixel includes a first light-emitting region at least partially located in the first sub-opening; the second sub-pixel includes a second light-emitting region at least partially located in the second sub-opening; the third sub-pixel includes a third light-emitting region at least partially located in the third sub-opening. The first sub-pixel emits light of a first color, the second sub-pixel emits light of a second color, the third sub-pixel emits light of a third color, and the first color, the second color, and the third color are different from each other. The display substrate further includes a light-emitting layer. The light-emitting layer includes a plurality of sub-light-emitting layers. At least a part of each sub-light-emitting layer is sandwiched between the first electrode and a first part of the second electrode and is configured to emit light under the action of the first electrical signal and the second electrical signal; the plurality of sub-light-emitting layers include a first sub-light-emitting layer located in the first light-emitting region and emitting light of the first color, a second sub-light-emitting layer located in the second light-emitting region and emitting light of the second color, and a third sub-light-emitting layer located in the third light-emitting region and emitting light of the third color. In each sub-pixel of at least a part of the plurality of sub-pixels, there is a gap between the sub-isolation structure and the sub-light-emitting layer. The first part of the second electrode includes a filling part filled in the gap, and the filling part separates the sub-light-emitting layer from the sub-isolation structure.

42. The display substrate according to claim 41, wherein The filling part is in direct contact with the side wall of the main body part.

43. The display substrate according to claim 42, wherein Each sub-isolation structure in at least a part of the sub-isolation structures further includes a lower part, and the lower part is located on the side of the main body part close to the substrate. The orthographic projection of the main body part on the substrate is located within the projection of the lower part on the substrate. The lower part is conductive and is applied with the second electrical signal. The lower part has an upper surface facing away from the substrate and a side surface intersecting with the upper surface. The first part of the second electrode further includes an edge part covering the upper surface of the lower part. The edge part is in direct contact with both the side wall of the main body part and the upper surface of the lower part. The filling part is in direct contact with the side surface of the lower part and the pixel top layer.

44. The display substrate according to claim 40, wherein The shape of the cross-section of the main body part along the direction perpendicular to the main surface of the substrate is trapezoidal or rectangular; the shape of the cross-section of the entire sub-isolation structure along the direction perpendicular to the main surface of the substrate is "I"-shaped.

45. The display substrate according to any one of claims 1-32, characterized in that, The isolation structure includes a conductive material, and the activity of the conductive material of the isolation structure is weaker than that of the material of the second electrode.

46. The display substrate according to claim 45, wherein The conductive material is a metallic material, and the metallic material of the isolation structure includes at least one of aluminum, copper, silver, titanium, and molybdenum; The second electrode includes a metallic material, and the metallic material of the second electrode includes at least one of aluminum, silver, and magnesium.

47. A display substrate, characterized in that, Comprising: A pixel array including a plurality of sub-pixels arranged in an array, the plurality of sub-pixels including a first sub-pixel, a second sub-pixel, and a third sub-pixel, wherein the plurality of sub-pixels form a plurality of pixel units, and at least one of the pixel units includes one of the second sub-pixels and two first sub-pixels and two third sub-pixels surrounding the one second sub-pixel; In one pixel unit, a figure formed by sequentially connecting the centers of the first light-emitting regions of the two first sub-pixels and the centers of the third sub-light-emitting regions of the two third sub-pixels along the direction of surrounding one second sub-pixel is a first trapezoid, and the intersection of the two diagonals of the first trapezoid is within the range of the second light-emitting region of the one second sub-pixel surrounded; The display substrate further includes: A substrate having a main surface; A pixel defining layer disposed on the main surface of the substrate and defining a plurality of first openings; A first electrode disposed on the main surface of the substrate and applied with a first electrical signal, wherein at least a part of the first electrode is exposed by the first opening; and An isolation structure disposed on a side of the pixel defining layer away from the substrate and defining a plurality of second openings.

48. The display substrate according to claim 47, wherein The first trapezoid is an isosceles trapezoid.

49. The display substrate according to claim 48, wherein In one pixel unit, the two first sub-pixels are respectively located on two sides of the one second sub-pixel in a first direction, and the two third sub-pixels are respectively located on two sides of the one second sub-pixel in a second direction; The two first sub-pixels are respectively a No. 1 first sub-pixel and a No. 2 first sub-pixel, the two third sub-pixels are respectively a No. 1 third sub-pixel and a No. 2 third sub-pixel, the No. 1 first sub-pixel and the No. 2 third sub-pixel are arranged in a row direction, the No. 2 first sub-pixel and the No. 1 third sub-pixel are arranged in a column direction, the row direction and the column direction are perpendicular and both intersect with the first direction and the second direction; The upper base and the lower base of the first trapezoid extend along the row direction, and the connection line between the center of the first light-emitting region of the No. 1 first sub-pixel and the center of the third light-emitting region of the No. 2 third sub-pixel forms the upper base of the first trapezoid, and the connection line between the center of the third light-emitting region of the No. 1 third sub-pixel and the center of the first light-emitting region of the No. 2 first sub-pixel forms the lower base of the first trapezoid.

50. The display substrate according to claim 49, wherein, In one pixel unit, a figure formed by sequentially connecting the centers of the second openings of the two first sub-pixels and the centers of the second openings of the two third sub-pixels along the direction of surrounding one second sub-pixel is a third trapezoid, and the intersection of the two diagonals of the third trapezoid is within the range of the second opening of the one second sub-pixel surrounded.

51. The display substrate according to claim 50, wherein The third trapezoid is an isosceles trapezoid; the upper base and the lower base of the third trapezoid extend along the row direction, and the line connecting the centers of the second openings of the first sub-pixel No. 1 and the second openings of the third sub-pixel No. 2 forms the upper base of the third trapezoid, and the line connecting the centers of the second openings of the third sub-pixel No. 1 and the second openings of the first sub-pixel No. 2 forms the lower base of the third trapezoid.

52. The display substrate according to claim 49, wherein The distance between the center of the first light-emitting region of the first sub-pixel No. 1 and the center of the second light-emitting region of one of the second sub-pixels is less than the distance between the center of the first light-emitting region of the first sub-pixel No. 2 and the center of the second light-emitting region of one of the second sub-pixels, and the distance between the center of the first light-emitting region of the first sub-pixel No. 1 and the center of the second light-emitting region of the third sub-pixel No. 2 is less than the distance between the center of the first light-emitting region of the first sub-pixel No. 2 and the center of the third light-emitting region of the third sub-pixel No. 1; The pixel array includes four second sub-pixels that surround the first sub-pixel No. 1 and are adjacent to the first sub-pixel No. 1, namely the second sub-pixel No. 1, the second sub-pixel No. 2, the second sub-pixel No. 3, and the second sub-pixel No. 4 arranged in counterclockwise order in turn; the fourth second sub-pixel, the first sub-pixel No. 1, and the second sub-pixel No. 2 are arranged in the first direction, and the second sub-pixel No. 1, the first sub-pixel No. 1, and the second sub-pixel No. 3 are arranged in the second direction; The distance between the center of the second light-emitting region of the second sub-pixel No. 1 and the center of the first light-emitting region of the first sub-pixel No. 1 is equal to the distance between the center of the second light-emitting region of the fourth second sub-pixel and the center of the first light-emitting region of the first sub-pixel No. 1, the distance between the center of the second light-emitting region of the second sub-pixel No. 2 and the center of the first light-emitting region of the first sub-pixel No. 1 is equal to the distance between the center of the second light-emitting region of the third second sub-pixel and the center of the first light-emitting region of the first sub-pixel No. 1, and the distance between the center of the second light-emitting region of the second sub-pixel No. 1 and the center of the first light-emitting region of the first sub-pixel No. 1 is greater than the distance between the center of the second light-emitting region of the second sub-pixel No. 2 and the center of the first light-emitting region of the first sub-pixel No.

1.

53. The display substrate according to claim 52, wherein, The distance between the first sub-isolation structure of the first sub-pixel No. 1 and the second sub-isolation structure of one of the second sub-pixels is less than the distance between the first sub-isolation structure of the first sub-pixel No. 2 and the second sub-isolation structure of one of the second sub-pixels, and the distance between the first sub-isolation structure of the first sub-pixel No. 1 and the third sub-isolation structure of the third sub-pixel No. 2 is less than the distance between the first sub-isolation structure of the first sub-pixel No. 2 and the third sub-isolation structure of the third sub-pixel No.

1.

54. The display substrate according to claim 52, wherein, The orthographic projection of one of the first openings on the main surface of the substrate is located within the orthographic projection range of one of the second openings on the substrate; Each of at least some of the plurality of sub-pixels respectively includes a corresponding sub-isolation structure and the second opening; The distance between the center of the second opening of the first No. 1 sub-pixel and the center of the second opening of the one second sub-pixel is less than the distance between the center of the second opening of the first No. 2 sub-pixel and the center of the second opening of the one second sub-pixel, and the distance between the center of the second opening of the first No. 1 sub-pixel and the center of the second opening of the third No. 2 sub-pixel is less than the distance between the center of the second opening of the first No. 2 sub-pixel and the center of the second opening of the third No. 1 sub-pixel; The distance between the center of the second opening of the first No. 1 second sub-pixel and the center of the second opening of the first No. 1 sub-pixel is equal to the distance between the center of the second opening of the fourth No. 2 sub-pixel and the center of the second opening of the first No. 1 sub-pixel, the distance between the center of the second opening of the second No. 2 sub-pixel and the center of the second opening of the first No. 1 sub-pixel is equal to the distance between the center of the second opening of the third No. 2 sub-pixel and the center of the second opening of the first No. 1 sub-pixel, and the distance between the center of the second opening of the first No. 1 second sub-pixel and the center of the second opening of the first No. 1 sub-pixel is greater than the distance between the center of the second opening of the second No. 2 sub-pixel and the center of the second opening of the first No. 1 sub-pixel.

55. The display substrate according to claim 52, wherein The display substrate includes a substrate having a main surface, and the pixel array is disposed on the main surface of the substrate; the orthographic projection of one of the first openings on the main surface of the substrate is located within the orthographic projection range of one of the second openings on the substrate; The display substrate further includes: A second electrode including a first portion at least partially located within the second opening, wherein the first portion of the second electrode is applied with a second electrical signal; The isolation structure includes a plurality of sub-isolation structures, and the plurality of sub-isolation structures include a first sub-isolation structure and a second sub-isolation structure that are spaced apart from each other and disconnected; The first portion of the second electrode includes a first sub-electrode and a second sub-electrode that are respectively located in different second openings and are disconnected from each other; The first sub-electrode is electrically connected to the first sub-isolation structure, and the second sub-electrode is electrically connected to the second sub-isolation structure.

56. The display substrate according to claim 55, wherein The second electrical signal includes a first sub-signal and a second sub-signal, the first sub-isolation structure is applied with the first sub-signal, the second sub-isolation structure is applied with the second sub-signal, and the values of the first sub-signal and the second sub-signal are different.

57. The display substrate according to claim 56, wherein The difference between the second electrical signal and the first sub-signal is different from the difference between the second electrical signal and the second sub-signal.

58. The display substrate according to claim 56, wherein The isolation structure further includes a third sub-isolation structure, and the third sub-isolation structure is spaced apart from both the first sub-isolation structure and the second sub-isolation structure; The second electrical signal further includes a third sub-signal, and the third sub-isolation structure is applied with the third sub-signal, and the values of the first sub-signal, the second sub-signal, and the third sub-signal are different from each other; the difference between the second electrical signal and the first sub-signal, the difference between the second electrical signal and the second sub-signal, and the difference between the second electrical signal and the third sub-signal are different from each other; The isolation structure includes a plurality of the first sub-isolation structures, a plurality of the second sub-isolation structures, and a plurality of the third sub-isolation structures. The plurality of the first sub-isolation structures are electrically connected to each other, the plurality of the second sub-isolation structures are electrically connected to each other, and the plurality of the third sub-isolation structures are electrically connected to each other.

59. The display substrate according to claim 58, wherein The first sub-isolation structure, the second sub-isolation structure, and the third sub-isolation structure are respectively located in the first sub-pixel, the second sub-pixel, and the third sub-pixel; The first opening includes a first sub-opening, a second sub-opening, and a third sub-opening; at least a part of the first light-emitting region of the first sub-pixel is located in the first sub-opening; At least a part of the second light-emitting region of the second sub-pixel is located in the second sub-opening, and the second sub-isolation structure surrounds the second light-emitting region; at least a part of the third light-emitting region of the third sub-pixel is located in the third sub-opening, and the third sub-isolation structure surrounds the third light-emitting region.

60. The display substrate according to any one of claims 47-59, characterized in that, The first sub-pixel emits light of a first color, the second sub-pixel emits light of a second color, the third sub-pixel emits light of a third color, and the first color, the second color, and the third color are different from each other.

61. The display substrate according to claim 58, wherein, The distance between adjacent first sub-isolation structure and second sub-isolation structure is a first distance, the distance between adjacent first sub-isolation structure and third sub-isolation structure is a second distance, and the distance between adjacent second sub-isolation structure and third sub-isolation structure is a third distance; On the same plane parallel to the main surface of the substrate, at least two of the lateral distances of the first distance, the lateral distance of the second distance, and the lateral distance of the third distance are different, and the lateral direction is the direction parallel to the main surface of the substrate.

62. The display substrate according to claim 49, wherein The distance between the first sub-isolation structure of the No. 1 first sub-pixel and the second sub-isolation structure of the one second sub-pixel is less than the distance between the first sub-isolation structure of the No. 2 first sub-pixel and the second sub-isolation structure of the one second sub-pixel, and the distance between the first sub-isolation structure of the No. 1 first sub-pixel and the third sub-isolation structure of the No. 2 third sub-pixel is less than the distance between the first sub-isolation structure of the No. 2 first sub-pixel and the third sub-isolation structure of the No. 1 third sub-pixel.

63. The display substrate according to claim 62, wherein The pixel array includes four second sub-pixels that surround the first sub-pixel No. 1 and are adjacent to the first sub-pixel No. 1, namely the second sub-pixel No. 1, the second sub-pixel No. 2, the second sub-pixel No. 3, and the second sub-pixel No. 4 arranged in counterclockwise order; the second sub-pixel No. 4, the first sub-pixel No. 1, and the second sub-pixel No. 2 are arranged in the first direction, and the second sub-pixel No. 1, the first sub-pixel No. 1, and the second sub-pixel No. 3 are arranged in the second direction. The distance between the second sub-isolation structure of the second sub-pixel No. 1 and the first sub-isolation structure of the first sub-pixel No. 1 in the second direction is L1, the distance between the second sub-isolation structure of the second sub-pixel No. 4 and the first sub-isolation structure of the first sub-pixel No. 1 in the first direction is L4, the distance between the second sub-isolation structure of the second sub-pixel No. 2 and the first sub-isolation structure of the first sub-pixel No. 1 in the first direction is L2, and the distance between the second sub-isolation structure of the second sub-pixel No. 3 and the first sub-isolation structure of the first sub-pixel No. 1 in the second direction is L3, satisfying L1 = L4 > L2 = L3.

64. The display substrate according to claim 62, wherein The pixel array includes four third sub-pixels that surround the first sub-pixel No. 1 and are adjacent to the first sub-pixel No. 1, namely the third sub-pixel No. 1, the third sub-pixel No. 2, the third sub-pixel No. 3, and the third sub-pixel No. 4 arranged in counterclockwise order; the third sub-pixel No. 1, the first sub-pixel No. 1, and the third sub-pixel No. 3 are arranged in sequence in the column direction, and the third sub-pixel No. 4, the first sub-pixel No. 1, and the third sub-pixel No. 2 are arranged in sequence in the column direction. The distance between the center of the first light-emitting region of the first sub-pixel No. 1 and the center of the third light-emitting region of the third sub-pixel No. 4 is L5, the distance between the center of the first light-emitting region of the first sub-pixel No. 1 and the center of the third light-emitting region of the third sub-pixel No. 2 is L6, the distance between the center of the first light-emitting region of the first sub-pixel No. 1 and the center of the third light-emitting region of the third sub-pixel No. 3 is L7, and the distance between the center of the first light-emitting region of the first sub-pixel No. 1 and the center of the third light-emitting region of the third sub-pixel No. 1 is L8, satisfying L5 > L6 > L7 = L8.

65. The display substrate according to any one of claims 49-59 and 61-64, characterized in that, The pixel array includes multiple rows of sub-pixels extending in the row direction and multiple columns of sub-pixels extending in the column direction. The first ends of the second light-emitting regions of multiple second sub-pixels located in the same row extending in the row direction are all on the same straight line extending in the column direction, and the second ends of the second light-emitting regions of multiple second sub-pixels located in the same row extending in the row direction, which are opposite to the first ends, are all on the same straight line extending in the row direction. Among adjacent two rows of second sub-pixels, the distances between the centers of the light-emitting regions of the second sub-pixels located in each column are all equal. The centers of the first light-emitting regions of the first sub-pixels and the centers of the third light-emitting regions of the third sub-pixels, which are located in the same row extending along the row direction, are on the same straight line extending along the row direction; The centers of the first light-emitting regions of the first sub-pixels and the centers of the third light-emitting regions of the third sub-pixels, which are located in the same column extending along the column direction, are not on the same straight line extending along the column direction.

66. The display substrate according to claim 65, characterized in that, The orthographic projection of one of the first openings on the main surface of the substrate is within the orthographic projection range of one of the second openings on the substrate; The first ends of the second openings of a plurality of the second sub-pixels located in the same row extending along the row direction are all on the same straight line extending along the row direction, and the second ends of the second openings of a plurality of the second sub-pixels located in the same row extending along the row direction, which are opposite to the first ends, are all on the same straight line extending along the row direction; Among adjacent two rows of second sub-pixels, the distances between the centers of the second openings of the second sub-pixels in each column are all equal; The centers of the second openings of the first sub-pixels and the centers of the second openings of the third sub-pixels, which are located in the same row extending along the row direction, are on the same straight line extending along the row direction; The centers of the second openings of the first sub-pixels and the centers of the second openings of the third sub-pixels, which are located in the same column extending along the column direction, are not on the same straight line extending along the column direction.

67. The display substrate according to any one of claims 49-59 and 61-64, characterized in that, The pixel array includes four second sub-pixels surrounding the No. 1 first sub-pixel and adjacent to the No. 1 first sub-pixel, which are the No. 1 second sub-pixel, the No. 2 second sub-pixel, the No. 3 second sub-pixel, and the No. 4 second sub-pixel arranged in counterclockwise order; the No. 4 second sub-pixel, the No. 1 first sub-pixel, and the No. 2 second sub-pixel are arranged in the first direction, and the No. 1 second sub-pixel, the No. 1 first sub-pixel, and the No. 3 second sub-pixel are arranged in the second direction. The figure formed by connecting the centers of the second light-emitting regions of the No. 1 second sub-pixel, the No. 2 second sub-pixel, the No. 3 second sub-pixel, and the No. 4 second sub-pixel in sequence is a second trapezoid, and the intersection point of the two diagonals of the second trapezoid is within the range of the first light-emitting region of the No. 1 first sub-pixel.

68. The display substrate according to claim 67, wherein The second trapezoid is an isosceles trapezoid, the upper base and the lower base of the second trapezoid extend along the column direction respectively, and the connection line between the center of the second light-emitting region of the No. 1 second sub-pixel and the center of the second light-emitting region of the No. 4 second sub-pixel constitutes the upper base of the second trapezoid, and the connection line between the center of the second light-emitting region of the No. 2 second sub-pixel and the center of the second light-emitting region of the No. 3 second sub-pixel constitutes the lower base of the second trapezoid.

69. The display substrate according to claim 67, wherein The intersection point of the two diagonals of the second trapezoid and the center of the first light-emitting region of the No. 1 first sub-pixel do not coincide or coincide.

70. The display substrate according to claim 68, wherein The figure formed by connecting the centers of the second openings of the 1st second sub-pixel, the centers of the second openings of the 2nd second sub-pixel, the centers of the second openings of the 3rd second sub-pixel, and the centers of the second openings of the 4th second sub-pixel P2 in sequence is a fourth trapezoid, and the intersection point of the two diagonals of the fourth trapezoid is within the range of the second opening of the 1st first sub-pixel.

71. The display substrate according to claim 70, characterized in that, The fourth trapezoid is an isosceles trapezoid. The upper base and the lower base of the fourth trapezoid extend along the row direction. The line connecting the center of the second opening of the 1st second sub-pixel and the center of the second opening of the 2nd second sub-pixel forms the upper base of the fourth trapezoid, and the line connecting the center of the second opening of the 3rd second sub-pixel and the center of the second opening of the 4th second sub-pixel forms the lower base of the fourth trapezoid.

72. The display substrate according to any one of claims 49-59 and 61-64, characterized in that, Among the multiple second sub-pixels located in the same row extending along the row direction, among the multiple second sub-pixels located in the same row extending along the row direction, the second light-emitting regions of the multiple second sub-pixels located in the odd-numbered columns are respectively aligned with each other at both ends in the column direction, and the second light-emitting regions of the multiple second sub-pixels located in the even-numbered columns are respectively aligned with each other at both ends in the column direction; For the multiple second sub-pixels located in the same row, the first ends of the second light-emitting regions of two adjacent second sub-pixels are not aligned with each other in the column direction and the second ends are not aligned with each other in the column direction; For two adjacent rows of the second sub-pixels extending along the row direction, the distances between the centers of the second light-emitting regions of two adjacent second sub-pixels in adjacent columns are not equal in the column direction.

73. The display substrate according to claim 72, wherein, The pixel array includes four second sub-pixels surrounding the 1st first sub-pixel and adjacent to the 1st first sub-pixel, which are the 1st second sub-pixel, the 2nd second sub-pixel, the 3rd second sub-pixel, and the 4th second sub-pixel arranged in counterclockwise order in sequence; the 4th second sub-pixel, the 1st first sub-pixel, and the 2nd second sub-pixel are arranged in the first direction, and the 1st second sub-pixel, the 1st first sub-pixel, and the 3rd second sub-pixel are arranged in the second direction. The distance between the center of the light-emitting region of the 2nd second sub-pixel and the center of the light-emitting region of the 3rd second sub-pixel in the column direction is greater than the distance between the center of the light-emitting region of the 1st second sub-pixel and the center of the light-emitting region of the 4th second sub-pixel in the column direction.

74. The display substrate according to claim 72, wherein Among the multiple second sub-pixels located in the same row extending along the row direction, the second openings of the multiple second sub-pixels located in the odd-numbered columns are respectively aligned with each other at both ends in the column direction, and the second openings of the multiple second sub-pixels located in the even-numbered columns are respectively aligned with each other at both ends in the column direction; For two adjacent rows of the second sub-pixels extending along the row direction, the distances between the centers of the second openings of two adjacent second sub-pixels in adjacent columns are not equal in the column direction.

75. The display substrate according to claim 74, wherein The pixel array includes four second sub-pixels that surround the first sub-pixel No. 1 and are adjacent to the first sub-pixel No. 1, which are the second sub-pixel No. 1, the second sub-pixel No. 2, the second sub-pixel No. 3, and the second sub-pixel No. 4 arranged in counterclockwise order; the second sub-pixel No. 4, the first sub-pixel No. 1, and the second sub-pixel No. 2 are arranged in the first direction, and the second sub-pixel No. 1, the first sub-pixel No. 1, and the second sub-pixel No. 3 are arranged in the second direction. The distance between the centers of the second openings of the second sub-pixel No. 2 and the second sub-pixel No. 3 in the column direction is greater than the distance between the centers of the second openings of the second sub-pixel No. 1 and the second sub-pixel No. 4 in the column direction.

76. The display substrate according to claim 43, wherein, The multiple second sub-pixels located in the same column include three second sub-pixels arranged continuously in sequence. Among the three second sub-pixels, the distance between the centers of the light-emitting regions of the first second sub-pixel and the second second sub-pixel in the column direction is less than the distance between the centers of the light-emitting regions of the second second sub-pixel and the third second sub-pixel in the column direction. The distance between the second sub-isolation structures of the first second sub-pixel and the second second sub-pixel in the column direction is less than the distance between the second sub-isolation structures of the second second sub-pixel and the third second sub-pixel in the column direction.

77. The display substrate according to claim 72, wherein The distance between the second sub-isolation structure of the second sub-pixel and the third sub-isolation structure of the third sub-pixel in the first direction when the second sub-pixels are arranged adjacent to each other in the first direction is not equal to the distance between the second sub-isolation structures of two adjacent second sub-pixels in the row direction when the second sub-pixels are arranged in the row direction.

78. The display substrate according to claim 72, wherein, The distance between the second sub-isolation structure of the second sub-pixel and the third sub-isolation structure of the third sub-pixel in the first direction when the second sub-pixels are arranged adjacent to each other in the first direction is not equal to the distance between the second sub-isolation structure of the second sub-pixel and the third sub-isolation structure of the third sub-pixel in the first direction when the second sub-pixels are arranged adjacent to each other in the second direction.

79. The display substrate according to any one of claims 47-59 and 61-64, characterized in that, For each of at least some of the multiple sub-pixels, the shape of the positive projection of the second opening of the sub-pixel on the main surface of the substrate is the same as the shape of the positive projection of the light-emitting region of the sub-pixel on the main surface of the substrate, and the center of the positive projection of the second opening of the sub-pixel on the main surface of the substrate substantially coincides with the center of the positive projection of the light-emitting region of the sub-pixel on the main surface of the substrate.

80. A display device, characterized in that, Including the display substrate according to any one of claims 1-79.

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