Display substrate and display device

Abstract

A display substrate and a display device. In the display substrate, a pixel defining layer defines a plurality of first openings; an isolation structure is disposed on the side of the pixel defining layer away from a substrate and defines a plurality of second openings, and the orthographic projection of one first opening on a main surface of the substrate is within the orthographic projection of one second opening on a backplane; a second electrode comprises a first portion located within the second opening, and a second electrical signal is applied to the first portion of the second electrode; a plurality of sub-isolation structures include first sub-isolation structures and second sub-isolation structures that are spaced apart and disconnected from each other; the first portion of the second electrode comprises a first sub-electrode and a second sub-electrode that are respectively located in different second openings and disconnected from each other; the first sub-electrode is electrically connected to the first sub-isolation structures, and the second sub-electrode is electrically connected to the second sub-isolation structures.

Description

Display substrate and display device

[0001] This application claims priority to Chinese Patent Application No. 202410875278.7, filed on July 01, 2024, the disclosure of which is incorporated herein in its entirety as part of the present application. TECHNICAL FIELD

[0002] At least one embodiment of the present disclosure relates to a display substrate and a display device. BACKGROUND

[0003] An OLED (Organic Light Emitting Diode) display device is a display device made of an organic electroluminescent diode. The OLED display device has excellent characteristics such as not requiring a backlight, high contrast, thin thickness, wide viewing angle, fast response speed, being applicable to a flexible panel, a wide temperature range of use, and a simple structure and process, and is widely used at present.

[0004] In the OLED display device, a conductive spacer can be provided as an auxiliary electrode, and the cathodes of a plurality of sub-pixels can be electrically connected by the spacer, so that the resistance of the cathode can be reduced. SUMMARY

[0005] At least one embodiment of the present disclosure provides a display substrate, which includes a substrate, a pixel defining layer, a first electrode, a spacer structure, and a second electrode. The substrate has a main surface; 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, and the first openings expose at least part of the first electrode; the spacer structure is disposed on a side of the pixel defining layer away from the substrate and defines a plurality of second openings; a normal projection of one of the first openings on the main surface of the substrate is within a normal projection range of one of the second openings on the back plate; the second electrode includes a first part located at least partially in the second opening, and the first part of the second electrode is applied with a second electrical signal; the spacer structure includes a plurality of sub-spacer structures, and the plurality of sub-spacer structures include first sub-spacer structures and second sub-spacer structures 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 located in different second openings, respectively, and are disconnected from each other; the first sub-electrode is electrically connected to the first sub-spacer structure, and the second sub-electrode is electrically connected to the second sub-spacer structure.

[0006] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, 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 first sub-signal and the second sub-signal are different in value.

[0007] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, 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.

[0008] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, the isolation structure further includes a third sub-isolation structure, the third sub-isolation structure is spaced apart from 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, the first sub-signal, the second sub-signal, and the third sub-signal are different in value 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 first sub-isolation structures, a plurality of second sub-isolation structures, and a plurality of third sub-isolation structures, the plurality of first sub-isolation structures are electrically connected to each other, the plurality of second sub-isolation structures are electrically connected to each other, and the plurality of third sub-isolation structures are electrically connected to each other.

[0009] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, 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 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 area at least partially located in the first sub-opening; the second sub-pixel includes a second light-emitting area at least partially located in the second sub-opening; and the third sub-pixel includes a third light-emitting area at least partially located in the third sub-opening.

[0010] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, 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.

[0011] For example, in the display substrate provided by at least one embodiment of the present disclosure, the interval between the first sub-isolation structure and the second sub-isolation structure adjacent to each other is a first interval, the interval between the first sub-isolation structure and the third sub-isolation structure adjacent to each other is a second interval, and the interval between the second sub-isolation structure and the third sub-isolation structure adjacent to each other is a third interval; at least two of the lateral distance of the first interval, the lateral distance of the second interval, and the lateral distance of the third interval are different in the same plane parallel to the main surface of the substrate.

[0012] For example, the display substrate provided by at least one embodiment of the present disclosure 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 second sub-pixel, two first sub-pixels respectively located on both sides of the one second sub-pixel in a first direction, and two third sub-pixels respectively located on both sides of the one second sub-pixel in a second direction; the two first sub-pixels are a first sub-pixel No. 1 and a first sub-pixel No. 2, and the two third sub-pixels are a third sub-pixel No. 1 and a third sub-pixel No. 2; the first sub-pixel No. 1 and the third sub-pixel No. 2 are arranged in a row direction, the first sub-pixel No. 2 and the third sub-pixel No. 2 are arranged in a column direction, the row direction and the column direction are perpendicular to each other and intersect with the first direction and the second direction; the distance between the center of the first light-emitting area of the first sub-pixel No. 1 and the center of the second light-emitting area of the one second sub-pixel is less than the distance between the center of the first light-emitting area of the first sub-pixel No. 2 and the center of the second light-emitting area of the one second sub-pixel, and the distance between the center of the first light-emitting area of the first sub-pixel No. 1 and the center of the second light-emitting area of the third sub-pixel No. 2 is less than the distance between the center of the first light-emitting area of the first sub-pixel No. 2 and the center of the third light-emitting area of the third sub-pixel No. 1; the pixel array includes four second sub-pixels surrounding the first sub-pixel No. 1 and adjacent to the first sub-pixel No. 1, which are a second sub-pixel No. 1, a second sub-pixel No. 2, a second sub-pixel No. 3 and a second sub-pixel No. 4 arranged in sequence in a counterclockwise direction; 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, the first sub-pixel No. 1, the second 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 area of the second sub-pixel No. 1 and the center of the first light-emitting area of the first sub-pixel No. 1 is equal to the distance between the center of the second light-emitting area of the second sub-pixel No. 4 and the center of the first light-emitting area of the first sub-pixel No. 1, the distance between the center of the second light-emitting area of the second sub-pixel No. 2 and the center of the first light-emitting area of the first sub-pixel No. 1 is equal to the distance between the center of the second light-emitting area of the second sub-pixel No. 3 and the center of the first light-emitting area of the first sub-pixel No. 1, and the distance between the center of the second light-emitting area of the second sub-pixel No. 1 and the center of the first light-emitting area of the first sub-pixel No. 1 is greater than the distance between the center of the second light-emitting area of the second sub-pixel No. 2 and the center of the first light-emitting area of the first sub-pixel No. 1.

[0013] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, the distance between the first sub-isolation structure of the first sub-pixel No. 1 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 second sub-pixel No. 2 and the second sub-isolation structure of the one second sub-pixel, 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.

[0014] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, each of at least part of the plurality of sub-pixels 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 the one second sub-pixel is less 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 one 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 second 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 first sub-pixel No. 1 is equal to the distance between the center of the second opening of the fourth 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. 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 third sub-pixel No. 2 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 first 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.

[0015] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, the distance between the second sub-isolation structure of the first sub-pixel No. 1 and the first sub-isolation structure of the one second sub-pixel is L1 in the second direction, the distance between the second sub-isolation structure of the fourth sub-pixel No. 2 and the first sub-isolation structure of the one second sub-pixel is L4 in the first direction, the distance between the second sub-isolation structure of the second sub-pixel No. 2 and the first sub-isolation structure of the one second sub-pixel is L2 in the first direction, and the distance between the second sub-isolation structure of the third sub-pixel No. 2 and the first sub-isolation structure of the one second sub-pixel is L3 in the second direction, and L1=L4>L2=L3 is satisfied.

[0016] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, the pixel array includes four third sub-pixels surrounding the first sub-pixel No. 1 and 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 sequence in a counterclockwise direction respectively; 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 fourth 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 fourth 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 second 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 first sub-pixel No. 1 is L8, satisfying L5>L6>L7=L8.

[0017] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, the pixel array includes a plurality of rows of sub-pixels extending in the row direction and a plurality of columns of sub-pixels extending in the column direction, the first ends of the second light-emitting areas of the plurality of second sub-pixels in the same row extending in the row direction are on the same straight line extending in the row direction, and the second ends of the second light-emitting areas of the plurality of second sub-pixels in the same row extending in the row direction opposite to the first ends are on the same straight line extending in the row direction; in the two adjacent rows of second sub-pixels, the distances between the centers of the light-emitting areas of the second sub-pixels in each column are equal; the center of the first light-emitting area of the first sub-pixel and the center of the third light-emitting area of the third sub-pixel in the same row extending in the row direction are on the same straight line extending in the row direction; and the center of the first light-emitting area of the first sub-pixel and the center of the third light-emitting area of the third sub-pixel in the same column extending in the column direction are not on the same straight line extending in the column direction.

[0018] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, the first ends of the second openings of the second sub-pixels in the same row extending in the row direction are on the same straight line extending in the row direction, and the second ends of the second openings of the second sub-pixels in the same row extending in the row direction are on the same straight line extending in the row direction; the distance between the centers of the second openings of the second sub-pixels in each column in two adjacent rows is equal; the center of the second opening of the first sub-pixel and the center of the second opening of the third sub-pixel in the same row extending in the row direction are on the same straight line extending in the row direction; and the center of the second opening of the first sub-pixel and the center of the second opening of the third sub-pixel in the same column extending in the column direction are not on the same straight line extending in the column direction.

[0019] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, among the second sub-pixels in the same row extending in the row direction, the two ends of the second light-emitting areas of the second sub-pixels in odd-numbered columns in the column direction are aligned with each other, and the two ends of the second light-emitting areas of the second sub-pixels in even-numbered columns in the column direction are aligned with each other; for the second sub-pixels in the same row, the first ends of the second light-emitting areas of two adjacent second sub-pixels in the column direction are not aligned with each other, and the second ends of the second light-emitting areas of the two adjacent second sub-pixels in the column direction are not aligned with each other; and for two adjacent rows of the second sub-pixels extending in the row direction, the distance between the centers of the second light-emitting areas of two adjacent second sub-pixels in adjacent columns in the column direction is not equal.

[0020] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, among the second sub-pixels in the same row extending in the row direction, the two ends of the second openings of the second sub-pixels in odd-numbered columns in the column direction are aligned with each other, and the two ends of the second openings of the second sub-pixels in even-numbered columns in the column direction are aligned with each other; and for two adjacent rows of the second sub-pixels extending in 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.

[0021] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, 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.

[0022] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, the second sub-pixels in the same column include three second sub-pixels arranged in sequence, and the distance between the center of the light-emitting area of the first second sub-pixel and the center of the light-emitting area of the second second sub-pixel in the column direction is less than the distance between the center of the light-emitting area of the second second sub-pixel and the center of the light-emitting area of the third second sub-pixel in the column direction; and the distance between the second sub-isolation structure of the first second sub-pixel and the second sub-isolation structure of the second second sub-pixel in the column direction is less than the distance between the second sub-isolation structure of the second second sub-pixel and the second sub-isolation structure of the third second sub-pixel in the column direction.

[0023] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, 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 in the first direction and adjacent to each other in the first direction is not equal to the distance between the second sub-isolation structures of two second sub-pixels arranged in the row direction and adjacent to each other in the row direction.

[0024] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, 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 in the first direction and 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 arranged in the second direction and adjacent to each other in the first direction.

[0025] For example, the display substrate provided by at least one embodiment of the present disclosure 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 second sub-pixel, two first sub-pixels respectively located on both sides of the one second sub-pixel in a first direction, and two third sub-pixels respectively located on both sides of the one second sub-pixel in a second direction; the two first sub-pixels are a first sub-pixel No. 1 and a first sub-pixel No. 2, and the two third sub-pixels are a third sub-pixel No. 1 and a third sub-pixel No. 2; the first sub-pixel No. 1 and the third sub-pixel No. 2 are arranged in a row direction, the first sub-pixel No. 2 and the third sub-pixel No. 2 are arranged in a column direction, the row direction and the column direction are perpendicular to each other and intersect with the first direction and the second direction; the distance between the center of the first light-emitting area of the first sub-pixel No. 1 and the center of the second light-emitting area of the one second sub-pixel is equal to the distance between the center of the first light-emitting area of the first sub-pixel No. 2 and the center of the second light-emitting area of the one second sub-pixel, the distance between the center of the first light-emitting area of the first sub-pixel No. 1 and the center of the second light-emitting area of the third sub-pixel No. 2 is equal to the distance between the center of the first light-emitting area of the first sub-pixel No. 2 and the center of the third light-emitting area of the third sub-pixel No. 1, and the distance between the center of the first light-emitting area of the first sub-pixel No. 1 and the center of the second light-emitting area of the third sub-pixel No. 1 is equal to the distance between the center of the first light-emitting area of the first sub-pixel No. 2 and the center of the third light-emitting area of the third sub-pixel No. 2; the pixel array includes four second sub-pixels surrounding the first sub-pixel No. 1 and adjacent to the first sub-pixel No. 1, which are a second sub-pixel No. 1, a second sub-pixel No. 2, a second sub-pixel No. 3 and a second sub-pixel No. 4 arranged in sequence in a counterclockwise direction; 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, 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 area of the second sub-pixel No. 1 and the center of the first light-emitting area of the first sub-pixel No. 1, the distance between the center of the second light-emitting area of the second sub-pixel No. 2 and the center of the first light-emitting area of the first sub-pixel No. 1, the distance between the center of the second light-emitting area of the second sub-pixel No. 3 and the center of the first light-emitting area of the first sub-pixel No. 1, and the distance between the center of the second light-emitting area of the second sub-pixel No. 4 and the center of the first light-emitting area of the first sub-pixel No. 1 are all equal; the distance between the sub-isolation structures of any two adjacent sub-pixels in the plurality of sub-pixels is equal to each other.

[0026] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, the distance between the center of the second opening of the first sub-pixel No. 1 and the center of the second light-emitting area of the second sub-pixel 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 second sub-pixel, 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 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, 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.

[0027] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, the display substrate comprises a pixel array, the pixel array comprises a plurality of rows of sub-pixels extending in a row direction and a plurality of columns of sub-pixels extending in a column direction, the plurality of columns of sub-pixels comprise 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 located in the first column of sub-pixels and adjacent to each other, and one third sub-pixel located in the second column of sub-pixels constitute a pixel unit, the pixel array comprises a plurality of pixel units arranged in an array; taking a plane perpendicular to the row direction as a reference plane, in one pixel unit, the orthographic projection of the first sub-pixel and the second sub-pixel on the reference plane at least partially overlaps with the orthographic projection of the third sub-pixel on the reference plane; the distance between the sub-isolation structures of any two adjacent sub-pixels in the plurality of sub-pixels is equal or unequal to each other.

[0028] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, in one pixel unit, the centers of the first light-emitting areas of the two first sub-pixels and the centers of the third light-emitting areas of the two third sub-pixels are sequentially connected in a direction around one second sub-pixel to form a first trapezoid, and the intersection of the two diagonal lines of the first trapezoid is located within the range of the second light-emitting area of the second sub-pixel being surrounded.

[0029] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, the first trapezoid is an isosceles trapezoid.

[0030] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, the upper base and the lower base of the first trapezoid respectively extend along the row direction, the line connecting 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 constitutes the upper base of the first trapezoid, and the line connecting the center of the third light-emitting region of the third sub-pixel No. 1 and the center of the first light-emitting region of the first sub-pixel No. 2 constitutes the lower base of the first trapezoid.

[0031] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, in one of the pixel units, a pattern formed by sequentially connecting the center of the second opening of the two first sub-pixels and the center of the second opening of the two third sub-pixels in a direction around one of the second sub-pixels is a third trapezoid, and the intersection of two diagonal lines of the third trapezoid is located within the range of the second opening of the second sub-pixel being surrounded.

[0032] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, the third trapezoid is an isosceles trapezoid, the upper base and the lower base of the third trapezoid respectively extend along the row direction, the line connecting 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 constitutes the upper base of the third trapezoid, and the line connecting the center of the second opening of the third sub-pixel No. 1 and the center of the second opening of the first sub-pixel No. 2 constitutes the lower base of the third trapezoid.

[0033] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, a pattern formed by sequentially connecting the center of the second light-emitting region of the second sub-pixel No. 1, the center of the second light-emitting region of the second sub-pixel No. 2, the center of the second light-emitting region of the second sub-pixel No. 3, and the center of the second light-emitting region of the second sub-pixel No. 4 is a second trapezoid, and the intersection of two diagonal lines of the second trapezoid is located within the range of the first light-emitting region of the first sub-pixel No. 1.

[0034] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, the second trapezoid is an isosceles trapezoid, the upper base and the lower base of the second trapezoid respectively extend along the row direction, the line connecting the center of the second light-emitting region of the second sub-pixel No. 1 and the center of the second light-emitting region of the second sub-pixel No. 2 constitutes the upper base of the second trapezoid, and the line connecting the center of the second light-emitting region of the second sub-pixel No. 3 and the center of the second light-emitting region of the second sub-pixel No. 4 constitutes the lower base of the second trapezoid.

[0035] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, the pattern formed by sequentially connecting the center of the second opening of the first second sub-pixel, the center of the second opening of the second second sub-pixel, the center of the second opening of the third second sub-pixel, and the center of the second opening of the fourth second sub-pixel P2 is a fourth trapezoid, and the intersection of the two diagonal lines of the fourth trapezoid is located in the range of the second opening of the first first sub-pixel.

[0036] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, the fourth trapezoid is an isosceles trapezoid, the upper base and the lower base of the fourth trapezoid respectively extend along the row direction, the line connecting the center of the second opening of the first second sub-pixel and the center of the second opening of the second second sub-pixel constitutes the upper base of the fourth trapezoid, and the line connecting the center of the second opening of the third second sub-pixel and the center of the second opening of the fourth second sub-pixel constitutes the lower base of the fourth trapezoid.

[0037] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, for each of at least part of the plurality of sub-pixels, the shape of the orthographic projection of the second opening of the sub-pixel on the main surface of the substrate is the same as the shape of the orthographic projection of the light-emitting region of the sub-pixel on the main surface of the substrate, and the center of the orthographic projection of the second opening of the sub-pixel on the main surface of the substrate substantially coincides with the center of the orthographic projection of the light-emitting region of the sub-pixel on the main surface of the substrate.

[0038] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, the range of the lowest resolution (Pixel Per Inch, PPI) of the display substrate is 400-800, and the distance between the sub-isolation structures 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.

[0039] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, a plurality of the second sub-isolation structures are electrically connected to each other through first connection structures, the first connection structures are provided in the same layer as the second sub-isolation structures and constitute a continuous integrated structure; a plurality of the first sub-isolation structures are electrically connected to each other through the second connection structures, the second connection structures are provided in different layers from the first sub-isolation structures; and a plurality of the third sub-isolation structures are electrically connected to each other through the third connection structures, the third connection structures are provided in different layers from the third sub-isolation structures.

[0040] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, 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 sub-pixels.

[0041] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, 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 sub-pixels.

[0042] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, the first sub-connection structure is in the shape of a strip extending in the row direction, and the second sub-isolation structure is in the shape of a strip extending in the column direction.

[0043] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, the second connection structure and the third connection structure are located on the side of the isolation structure close to the substrate.

[0044] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, for each of at least part 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 orthographic projection of the main body portion on the substrate is located within the projection of the upper portion on the substrate; the first part of the second electrode is in direct contact with the sidewall of the main body portion.

[0045] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, the display substrate further includes a light-emitting layer, the light-emitting layer includes a plurality of sub-light-emitting layers, at least part of each of the sub-light-emitting layers is sandwiched between the first electrode and the first part 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 includes a first sub-light-emitting layer located in the first light-emitting area and emitting light of the first color, a second sub-light-emitting layer located in the second light-emitting area and emitting light of the second color, and a third sub-light-emitting layer located in the third light-emitting area and emitting light of the third color; in each of at least part of the plurality of sub-pixels, there is a gap between the sub-isolation structure and the sub-light-emitting layer, and the first part of the second electrode includes a filling part filled in the gap, which separates the sub-light-emitting layer from the sub-isolation structure.

[0046] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, the filling part is in direct contact with the sidewall of the main body portion.

[0047] For example, in a display substrate provided in at least one embodiment of this disclosure, each sub-isolation structure in at least a portion of the sub-isolation structures further includes a lower portion located on the side of the main body portion near the substrate, the orthographic projection of the main body portion on the substrate being located within the projection of the lower portion on the substrate; the lower portion is conductive and is subjected to the second electrical signal, the lower portion having an upper surface facing away from the substrate and a side surface intersecting 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 the sidewall of the main body portion and the upper surface of the lower portion, and the filling portion being in direct contact with both the side surface of the lower portion and the pixel junction layer.

[0048] For example, in at least one embodiment of the display substrate provided in this disclosure, the shape of the cross section of the main body portion 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.

[0049] For example, in at least one embodiment of the display substrate provided in this disclosure, 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.

[0050] For example, in at least one embodiment of the display substrate provided in this disclosure, 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.

[0051] The display substrate provided by at least one embodiment of the present disclosure includes a pixel array, the pixel array includes a plurality of sub-pixels arranged in an array, the plurality of sub-pixels includes a first sub-pixel, a second sub-pixel and a third sub-pixel; the plurality of sub-pixels constitutes a plurality of pixel units, at least one of the pixel units includes one second sub-pixel, two first sub-pixels surrounding the one second sub-pixel, and two third sub-pixels surrounding the one second sub-pixel; in one of the pixel units, the centers of the first light-emitting areas of the two first sub-pixels and the centers of the third light-emitting areas of the two third sub-pixels are sequentially connected along a direction surrounding the one second sub-pixel to form a first trapezoid, and the intersection of the two diagonal lines of the first trapezoid is located within the range of the second light-emitting area of the one second sub-pixel surrounded by the two diagonal lines; the display substrate further includes a pixel defining layer, a first electrode and an isolation structure; the pixel defining layer is arranged on the main surface of the substrate and defines a plurality of first openings; the first electrode is arranged on the main surface of the substrate and is applied with a first electrical signal, and the first openings expose at least part of the first electrode; the isolation structure is arranged on the side of the pixel defining layer away from the substrate and defines a plurality of second openings.

[0052] For example, in the display substrate provided by at least one embodiment of the present disclosure, the first trapezoid is an isosceles trapezoid.

[0053] For example, in the display substrate provided by at least one embodiment of the present disclosure, in one of the pixel units, the two first sub-pixels are respectively located on the two sides of the one second sub-pixel in a first direction, and the two third sub-pixels are respectively located on the two sides of the one second sub-pixel in a second direction; the two first sub-pixels are a first sub-pixel No. 1 and a first sub-pixel No. 2, and the two third sub-pixels are a third sub-pixel No. 1 and a third sub-pixel No. 2; the first sub-pixel No. 1 and the third sub-pixel No. 2 are arranged in a row direction, the second sub-pixel No. 2 and the third sub-pixel No. 1 are arranged in a column direction, the row direction and the column direction are perpendicular to each other and intersect with the first direction and the second direction; the upper base and the lower base of the first trapezoid respectively extend along the row direction, the upper base of the first trapezoid is formed by the line connecting the center of the first light-emitting area of the first sub-pixel No. 1 and the center of the third light-emitting area of the third sub-pixel No. 2, and the lower base of the first trapezoid is formed by the line connecting the center of the third light-emitting area of the third sub-pixel No. 1 and the center of the first light-emitting area of the first sub-pixel No. 2.

[0054] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, in one of the pixel units, the pattern formed by sequentially connecting the center of the second opening of the two first sub-pixels and the center of the second opening of the two third sub-pixels along the direction surrounding one of the second sub-pixels is a third trapezoid, and the intersection of the two diagonal lines of the third trapezoid is located within the range of the second opening of the surrounded one of the second sub-pixels.

[0055] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, the third trapezoid is an isosceles trapezoid, the upper base and the lower base of the third trapezoid respectively extend along the row direction, the line connecting the center of the second opening of the 1st first sub-pixel and the center of the second opening of the 2nd third sub-pixel constitutes the upper base of the third trapezoid, and the line connecting the center of the second opening of the 1st third sub-pixel and the center of the second opening of the 2nd first sub-pixel constitutes the lower base of the third trapezoid.

[0056] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, the distance between the center of the first light-emitting area of the 1st first sub-pixel and the center of the second light-emitting area of the one of the second sub-pixels is less than the distance between the center of the first light-emitting area of the 2nd first sub-pixel and the center of the second light-emitting area of the one of the second sub-pixels, the distance between the center of the first light-emitting area of the 1st first sub-pixel and the center of the second light-emitting area of the 2nd third sub-pixel is less than the distance between the center of the first light-emitting area of the 2nd first sub-pixel and the center of the third light-emitting area of the 1st third sub-pixel, 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 sequence in an anticlockwise direction, 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 second light-emitting area of the 1st second sub-pixel and the center of the first light-emitting area of the 1st first sub-pixel is equal to the distance between the center of the second light-emitting area of the 4th second sub-pixel and the center of the first light-emitting area of the 1st first sub-pixel, the distance between the center of the second light-emitting area of the 2nd second sub-pixel and the center of the first light-emitting area of the 1st first sub-pixel is equal to the distance between the center of the second light-emitting area of the 3rd second sub-pixel and the center of the first light-emitting area of the 1st first sub-pixel, and the distance between the center of the second light-emitting area of the 1st second sub-pixel and the center of the first light-emitting area of the 1st first sub-pixel is greater than the distance between the center of the second light-emitting area of the 2nd second sub-pixel and the center of the first light-emitting area of the 1st first sub-pixel.

[0057] For example, in the display substrate provided by at least one embodiment of the present disclosure, the distance between the first sub-isolation structure of the first sub-pixel No. 1 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 second sub-pixel No. 2 and the second sub-isolation structure of the one second sub-pixel, 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 second sub-pixel No. 2 and the third sub-isolation structure of the third sub-pixel No. 1.

[0058] For example, in the display substrate provided by at least one embodiment of the present disclosure, the orthographic projection of the one first opening on the main surface of the substrate is located within the orthographic projection range of the one second opening on the back plate; each of at least part of the plurality of 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 the one second sub-pixel is less 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 one 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 second 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 first sub-pixel No. 1 is equal to the distance between the center of the second opening of the fourth 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. 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 third sub-pixel No. 2 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 first 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.

[0059] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, the display substrate includes a substrate having a main surface, and a pixel array disposed on the main surface of the substrate; a first opening in the display substrate has a first projection on the main surface of the substrate, and a second opening in the back plate has a second projection on the main surface of the substrate; the first projection is located within the range of the second projection; the display substrate further includes a second electrode, the second electrode includes a first part located at least partially 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 spaced apart and disconnected from each other; the first part of the second electrode includes a first sub-electrode and a second sub-electrode located in different second openings and disconnected from each other, respectively; 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.

[0060] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, 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.

[0061] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, 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.

[0062] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, the isolation structure further includes a third sub-isolation structure, the third sub-isolation structure is spaced apart from 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 first sub-isolation structures, a plurality of second sub-isolation structures, and a plurality of third sub-isolation structures, the plurality of first sub-isolation structures are electrically connected to each other, the plurality of second sub-isolation structures are electrically connected to each other, and the plurality of third sub-isolation structures are electrically connected to each other.

[0063] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, 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; a first light-emitting region of the first sub-pixel is at least partially located in the first sub-opening; a second light-emitting region of the second sub-pixel is at least partially located in the second sub-opening, and the second sub-isolation structure surrounds the second light-emitting region; a third light-emitting region of the third sub-pixel is at least partially located in the third sub-opening, and the third sub-isolation structure surrounds the third light-emitting region.

[0064] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, the first sub-pixel emits light of a first color, the second sub-pixel emits light of a second color, and 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.

[0065] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, a spacing between the first sub-isolation structure and the second sub-isolation structure adjacent to each other is a first spacing, a spacing between the first sub-isolation structure and the third sub-isolation structure adjacent to each other is a second spacing, and a spacing between the second sub-isolation structure and the third sub-isolation structure adjacent to each other is a third spacing; at least two of a lateral distance of the first spacing, a lateral distance of the second spacing, and a lateral distance of the third spacing are different in a same plane parallel to a main surface of the substrate, and the lateral direction is parallel to the main surface of the substrate.

[0066] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, a distance between the first sub-isolation structure of the first sub-pixel No. 1 and the second sub-isolation structure of the second sub-pixel is less than a distance between the first sub-isolation structure of the first sub-pixel No. 2 and the second sub-isolation structure of the second sub-pixel, and a 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 a 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.

[0067] For example, in the display substrate provided by at least one embodiment of the present disclosure, the distance between the second sub-isolation structure of the first second sub-pixel and the first sub-isolation structure of the first first sub-pixel in the second direction is L1, the distance between the second sub-isolation structure of the fourth second sub-pixel and the first sub-isolation structure of the first first sub-pixel in the first direction is L4, the distance between the second sub-isolation structure of the second second sub-pixel and the first sub-isolation structure of the first first sub-pixel in the first direction is L2, the distance between the second sub-isolation structure of the third second sub-pixel and the first sub-isolation structure of the first first sub-pixel in the second direction is L3, and L1=L4>L2=L3 is satisfied.

[0068] For example, in the display substrate provided by at least one embodiment of the present disclosure, the pixel array includes four third sub-pixels surrounding the first first sub-pixel and adjacent to the first first sub-pixel, which are the first third sub-pixel, the second third sub-pixel, the third third sub-pixel, and the fourth third sub-pixel arranged in sequence in a counterclockwise direction, respectively; the first third sub-pixel, the first first sub-pixel, and the third third sub-pixel are arranged in sequence in the column direction, and the fourth third sub-pixel, the first first sub-pixel, and the second third sub-pixel are arranged in sequence in the column direction; the distance between the center of the first light-emitting area of the first first sub-pixel and the center of the third light-emitting area of the fourth third sub-pixel is L5, the distance between the center of the first light-emitting area of the first first sub-pixel and the center of the third light-emitting area of the second third sub-pixel is L6, the distance between the center of the first light-emitting area of the first first sub-pixel and the center of the third light-emitting area of the third third sub-pixel is L7, and the distance between the center of the first light-emitting area of the first first sub-pixel and the center of the third light-emitting area of the first third sub-pixel is L8, and L5>L6>L7=L8 is satisfied.

[0069] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, the pixel array includes a plurality of rows of sub-pixels extending along the row direction and a plurality of columns of sub-pixels extending along the column direction, the first ends of the second light-emitting areas of the plurality of second sub-pixels in the same row extending along the row direction are on the same straight line extending along the row direction, and the second ends of the second light-emitting areas of the plurality of second sub-pixels in the same row extending along the row direction, which are opposite to the first ends, are on the same straight line extending along the row direction; the distances between the centers of the light-emitting areas of the second sub-pixels in each column in two adjacent rows of second sub-pixels are equal; the center of the first light-emitting area of the first sub-pixel and the center of the third light-emitting area 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; and the center of the first light-emitting area of the first sub-pixel and the center of the third light-emitting area 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.

[0070] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, 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 back plate; the first ends of the second openings of the plurality of second sub-pixels in the same row extending along the row direction are on the same straight line extending along the row direction, and the second ends of the second openings of the plurality of second sub-pixels in the same row extending along the row direction, which are opposite to the first ends, are on the same straight line extending along the row direction; the distances between the centers of the second openings of the second sub-pixels in each column in two adjacent rows of second sub-pixels are equal; the center of the second opening of the first sub-pixel and the center of the second opening 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; and the center of the second opening of the first sub-pixel and the center of the second opening 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.

[0071] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, the centers of the second light-emitting areas of the first, second, third and fourth second sub-pixels are sequentially connected to form a second trapezoid, and the intersection of the two diagonal lines of the second trapezoid is located in the range of the first light-emitting area of the first sub-pixel.

[0072] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, the second trapezoid is an isosceles trapezoid, the upper base and the lower base of the second trapezoid respectively extend along the column direction, the line connecting the center of the second light-emitting region of the first second sub-pixel and the center of the second light-emitting region of the fourth second sub-pixel constitutes the upper base of the second trapezoid, and the line connecting the center of the second light-emitting region of the second second sub-pixel and the center of the second light-emitting region of the third second sub-pixel constitutes the lower base of the second trapezoid.

[0073] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, the intersection of the two diagonal lines of the second trapezoid does not coincide with or coincides with the center of the first light-emitting region of the first second sub-pixel.

[0074] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, the pattern formed by sequentially connecting the center of the second opening of the first second sub-pixel, the center of the second opening of the second second sub-pixel, the center of the second opening of the third second sub-pixel, and the center of the second opening of the fourth second sub-pixel is a fourth trapezoid, and the intersection of the two diagonal lines of the fourth trapezoid is located within the range of the second opening of the first second sub-pixel.

[0075] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, the fourth trapezoid is an isosceles trapezoid, the upper base and the lower base of the fourth trapezoid respectively extend along the row direction, the line connecting the center of the second opening of the first second sub-pixel and the center of the second opening of the second second sub-pixel constitutes the upper base of the fourth trapezoid, and the line connecting the center of the second opening of the third second sub-pixel and the center of the second opening of the fourth second sub-pixel constitutes the lower base of the fourth trapezoid.

[0076] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, among the second sub-pixels located in the same row extending along the row direction, among the second sub-pixels located in the same row extending along the row direction, the two ends of the second light-emitting region of the second sub-pixel located in the odd-numbered column in the column direction are respectively aligned with each other, and the two ends of the second light-emitting region of the second sub-pixel located in the even-numbered column in the column direction are respectively aligned with each other; for the second sub-pixels located in the same row, the first ends of the second light-emitting regions of two adjacent second sub-pixels in the column direction are not aligned with each other, and the second ends of the second light-emitting regions of the two adjacent second sub-pixels in the column direction are not aligned with each other; and for two adjacent rows of second sub-pixels extending along the row direction, the distance between the centers of the second light-emitting regions of two adjacent second sub-pixels in adjacent columns in the column direction is not equal.

[0077] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, the distance between the center of the light emitting area of the second sub-pixel No. 2 and the center of the light emitting area of the second sub-pixel No. 3 in the column direction is greater than the distance between the center of the light emitting area of the second sub-pixel No. 1 and the center of the light emitting area of the second sub-pixel No. 4 in the column direction.

[0078] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, among the second sub-pixels in the same row extending along the row direction, the two ends of the second openings of the second sub-pixels in the odd-numbered columns are aligned with each other respectively, and the two ends of the second openings of the second sub-pixels in the even-numbered columns are aligned with each other respectively; for two adjacent rows of the second sub-pixels extending along the row direction, the distance between the centers of the second openings of the two adjacent second sub-pixels in the adjacent columns in the column direction is not equal.

[0079] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, 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.

[0080] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, the second sub-pixels in the same column include three second sub-pixels arranged continuously in sequence, among the three second sub-pixels, the distance between the center of the light emitting area of the first second sub-pixel and the center of the light emitting area of the second second sub-pixel in the column direction is less than the distance between the center of the light emitting area of the second second sub-pixel and the center of the light emitting area of the third second sub-pixel in the column direction; the distance between the second sub-isolation structure of the first second sub-pixel and the second sub-isolation structure of the second second sub-pixel in the column direction is less than the distance between the second sub-isolation structure of the second second sub-pixel and the second sub-isolation structure of the third second sub-pixel in the column direction.

[0081] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, 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 and the distance between the second sub-isolation structures of the two adjacent second sub-pixels arranged in the row direction in the row direction are not equal.

[0082] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, 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 arranged in the first direction and adjacent to each other 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 arranged in the second direction and adjacent to each other.

[0083] For example, in the display substrate provided by at least one of the embodiments of the present disclosure, for each of at least part of the plurality of sub-pixels, the shape of the orthographic projection of the second opening of the sub-pixel on the main surface of the substrate is the same as the shape of the orthographic projection of the light-emitting region of the sub-pixel on the main surface of the substrate, and the center of the orthographic projection of the second opening of the sub-pixel on the main surface of the substrate substantially coincides with the center of the orthographic projection of the light-emitting region of the sub-pixel on the main surface of the substrate.

[0084] The display device provided by at least one of the embodiments of the present disclosure comprises any one of the display substrates provided by at least one of the embodiments of the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0085] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only relate to some of the embodiments of the present disclosure, but not limit the present disclosure.

[0086] FIG. 1 is a cross-sectional schematic view of a partial structure of a display substrate provided by an embodiment of the present disclosure;

[0087] FIG. 2 is a cross-sectional schematic view of another partial structure of a display substrate provided by an embodiment of the present disclosure;

[0088] FIG. 3 is a partial planar schematic view of a display substrate provided by an embodiment of the present disclosure;

[0089] FIG. 4 is a partial planar schematic view of another display substrate provided by an embodiment of the present disclosure;

[0090] FIG. 5 is a partial planar schematic view of yet another display substrate provided by an embodiment of the present disclosure;

[0091] FIG. 6 is a partial planar schematic view of still another display substrate provided by an embodiment of the present disclosure;

[0092] FIG. 7A is an enlarged schematic view of the local L in FIG. 2;

[0093] FIG. 7B is a structural schematic view of a sub-light-emitting layer;

[0094] FIG. 8 is a structural schematic view of another display substrate provided by an embodiment of the present disclosure;

[0095] FIG. 9 is a cross-sectional schematic view of a partial structure of another display substrate according to an embodiment of the present disclosure;

[0096] FIG. 10 is an enlarged schematic view of the partial L in FIG. 9;

[0097] FIG. 11 is a schematic view of a display device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0098] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be described clearly and completely below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the described embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0099] Unless otherwise defined, technical terms or scientific terms used herein should be understood as having the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terms "first", "second", and similar terms used in the specification and claims of the present patent application do not necessarily denote any ordinal, quantity, or importance, but are used to distinguish different components. The terms "comprising", "including", and similar terms mean that the elements or objects before the term encompass the elements or objects listed after the term, and equivalents thereof, and do not exclude other elements or objects. The terms "inner", "outer", "upper", "lower", and the like are used only to indicate relative positional relationships, and when the absolute positions of the described objects are changed, the relative positional relationships may also be changed accordingly.

[0100] As used herein, "perpendicular", "equal" includes the stated case and a case similar to the stated case within an acceptable deviation range, wherein the acceptable deviation range is determined by a person of ordinary skill in the art taking into account the measurement being discussed and the error associated with the measurement of a particular quantity (i.e., limitations of the measurement system). For example, "perpendicular" includes absolute perpendicular and near-perpendicular, wherein the acceptable deviation range of near-perpendicular may be, for example, within 5° of deviation. "Equal" includes absolute equality and near-equality, wherein the acceptable deviation range of near-equality may be, for example, a difference between the two of less than or equal to 5% of either.

[0101] It should be understood that when a layer or element is referred to as being on another layer or substrate, it can be directly on the other layer or substrate, or there can be an intervening layer between the layer or element and the other layer or substrate.

[0102] Exemplary embodiments are described herein with reference to cross-sectional and / or plan view illustrations that are schematic illustrations of idealized embodiments. In this regard, the drawings herein are not drawn to scale and the dimensions of the various features can have been exaggerated for the sake of clarity. Thus, the exemplary embodiments should not be interpreted as being limited to the particular shape of regions illustrated herein, but are to include deviations in shapes that result from, e.g., manufacturing. For example, an etched region illustrated as a rectangle will typically have curved distal regions. It is expected to often be the case that, e.g., manufacturing variations will result in variations in a shape of a region. It should also be understood that, in the context of the present embodiments, the terms "on," "under," "above," and "below" are used in relation to the plane of the substrate, unless otherwise specified. Thus, the terms "on," "under," "above," and "below" are used in relation to the plane of the substrate, unless otherwise specified.

[0103] The drawings in the present disclosure are not strictly drawn to scale, and the number of sub-pixels of each color in the substrate is not limited to the number shown in the drawings. The specific size and number of each structure can be determined according to actual needs. The drawings described in the present disclosure are only schematic diagrams of structures.

[0104] In the present application, 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 closest to each other or the distance between the points on the edges that are closest to each other.

[0105] 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 closest to each other or the distance between the points on the edges that are closest to each other.

[0106] 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 the certain direction or the distance between the points on the edges that are closest to each other in the certain direction.

[0107] 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 the certain direction or the distance between the points on the edges that are closest to each other in the certain direction.

[0108] 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 figure of the second opening). When the planar figure of the second opening is an irregular figure, it is idealized to a similar regular figure, and the center of the second opening is the geometric center of the regular figure. For example, the planar figure of a second opening is a rectangle, a diamond, a circle, an ellipse, etc. The above-mentioned types of the planar figure of a second opening are only commonly used and exemplary, and the planar figure of a light emitting region is not specifically limited in the embodiments of the present disclosure and is not limited to the above-mentioned types.

[0109] In the present application, the center of the light emitting region refers to the geometric center of the shape of the planar figure of the light emitting region (orthographic projection on the main surface of the substrate 10). When the planar figure of the light emitting region is an irregular figure, it is idealized to a similar regular figure, and the center of the light emitting region is the geometric center of the regular figure. For example, the planar figure of a light emitting region is a rectangle, a diamond, a circle, an ellipse, etc. The above-mentioned types of the planar figure of a light emitting region are only commonly used and exemplary, and the planar figure of a light emitting region is not specifically limited in the embodiments of the present disclosure and is not limited to the above-mentioned types.

[0110] In a display substrate, the light emitting devices of red, green and blue sub-pixels in a pixel unit can be driven to emit light by a single voltage source. Since the preset voltages of different color light emitting devices are usually different, for example, the working voltage of a blue light emitting device is relatively high, and the working voltages of red and green light emitting devices are relatively low. When the same power supply voltage is applied to the active driving circuit of sub-pixels of different colors, in order to ensure the white balance display, the pixel driving power supply voltage needs to be set according to the working voltage of the blue light emitting device. Compared with the blue light pixel, the driving transistors in the active driving circuit of red and green pixels share excess voltage and corresponding power consumption, which does not contribute to the light emission of the light emitting device, but becomes heat dissipation, which not only reduces the electro-optical efficiency of the display device, but also affects the working performance of electronic components due to the heat in the circuit to a certain extent, thereby affecting the display effect of the display device.

[0111] The display substrate includes a substrate, a pixel defining layer, a first electrode, an isolation structure, and a second electrode. The substrate has a major surface; the pixel defining layer is disposed on the major surface of the substrate and defines a plurality of first openings; the first electrode is disposed on the major surface of the substrate and is applied with a first electrical signal, the first openings expose at least part of the first electrode; the isolation structure is disposed on a side of the pixel defining layer away from the substrate and defines a plurality of second openings; a normal projection of one of the first openings on the major surface of the substrate is within a range of a normal projection of one of the second openings on the back plate; the second electrode includes a first part at least partially located in the second opening, the first part of the second electrode is applied with a second electrical signal; the isolation structure includes a plurality of sub-isolation structures, the plurality of sub-isolation structures include a first sub-isolation structure and a second sub-isolation structure spaced apart and disconnected from each other; the first part of the second electrode includes a first sub-electrode and a second sub-electrode located in different second openings respectively and 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.

[0112] In the display substrate, the first sub-isolation structure and the second sub-isolation structure are spaced apart and disconnected from each other, and "disconnected" here means non-electrically connected. In this way, 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 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 driving voltage.

[0113] The display substrate provided by at least one of the embodiments of the present disclosure comprises a pixel array, the pixel array comprises a plurality of sub-pixels arranged in an array, and the plurality of sub-pixels comprise first sub-pixels, second sub-pixels and third sub-pixels; the plurality of sub-pixels constitute a plurality of pixel units, at least one of the pixel units comprises one second sub-pixel, and two first sub-pixels and two third sub-pixels surrounding the one second sub-pixel; in one pixel unit, the centers of the first light-emitting areas of the two first sub-pixels and the centers of the third light-emitting areas of the two third sub-pixels are sequentially connected in a direction surrounding the one second sub-pixel to form a first trapezoid, and the intersection of the two diagonal lines of the first trapezoid is located in the range of the second light-emitting area of the one second sub-pixel surrounded; the display substrate further comprises a pixel defining layer, a first electrode and an isolation structure; the pixel defining layer is arranged on the main surface of the substrate and defines a plurality of first openings; the first electrode is arranged on the main surface of the substrate and is applied with a first electric signal, and the first openings expose at least part of the first electrode; and the isolation structure is arranged on the side of the pixel defining layer away from the substrate and defines a plurality of second openings. In the display substrate, the sub-isolation structure is arranged for each sub-pixel in adaptation to the pixel arrangement mode arranged in a trapezoidal shape, so as to provide a corresponding second electric signal for each sub-pixel, so that the light-emitting layer of the sub-pixel emits light under the action of the first electric signal and the second electric signal.

[0114] The display device provided by at least one of the embodiments of the present disclosure comprises any one of the display substrates provided by the embodiments of the present disclosure.

[0115] For example, FIG. 1 is a schematic cross-sectional view of a partial structure of a display substrate provided by an embodiment of the present disclosure; and FIG. 2 is a schematic cross-sectional view of another partial structure of a display substrate provided by an embodiment of the present disclosure.

[0116] As shown in FIG. 1, the display substrate 100 comprises a back plate 10. The back plate 10 comprises a substrate 11 and a pixel circuit layer 12 arranged in sequence.

[0117] For example, the display substrate 100 provided by the embodiments of the present disclosure can be an organic light-emitting diode (OLED) display substrate. Of course, it can also be other types of electroluminescent display substrates.

[0118] The type of the substrate 11 described above includes various types, which can be selected and arranged according to actual needs.

[0119] For example, the substrate 11 described above can be a rigid substrate. The rigid substrate can be a glass substrate or a PMMA (Polymethylmethacrylate) substrate, etc.

[0120] The substrate 11 can be a flexible substrate. The flexible substrate can be a PET (Polyethyleneterephthalate) substrate, a PEN (Polyethylenenaphthalatetwoformic acid glycolester) substrate, a PI (Polyimide) substrate, or the like. In this case, the display substrate 100 can be a flexible display, for example.

[0121] The type of the substrate 11 is not limited to the above-mentioned types, and the embodiments of the present disclosure are not limited thereto.

[0122] The substrate 11 has a main surface. 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 can include a plurality of pixel driving circuits 13.

[0123] The pixel driving circuit 13 can include, but is not limited to, a transistor, a capacitor, or the like. The structure of the pixel driving circuit 13 can include various structures, and the embodiments of the present disclosure are not limited thereto. For example, the structure of the pixel driving circuit 13 can be a “6T1C”, “7T1C”, “6T2C”, “7T2C”, or the like. “T” represents a transistor, the number before “T” represents the number of transistors, “C” represents a storage capacitor, and the number before “C” represents the number of storage capacitors. In some embodiments of the present disclosure, a transistor is used as an example to schematically represent the pixel driving circuit 13.

[0124] In some examples, referring to FIG. 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.

[0125] 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, and the plurality of first openings 21 form the mesh of the grid.

[0126] The shape of the plurality of first openings 21 can be various, such as a circular shape, an elliptical shape, a quadrilateral shape, a pentagonal shape, a hexagonal shape, or the like. The quadrilateral shape includes a rectangular shape, a square shape, a parallelogram shape, a rhombus shape, or the like, and the embodiments of the present disclosure are not limited thereto.

[0127] As shown in FIG. 2, the display substrate 100 further includes a first electrode layer 30 disposed between the pixel defining layer 20 and the back plate 10. The first electrode layer 30 includes a plurality of first electrodes 31 arranged at intervals.

[0128] The first electrode 31 is connected with the pixel driving circuit 13 in the back plate 10 and receives an electrical signal provided by the pixel driving circuit 13. For example, one first opening 21 exposes at least a part of one first electrode 31. The surface of the first electrode 31 away from the back plate can be fully exposed through the first opening 21 or partially exposed and partially covered by the pixel defining layer 20. That is, the first electrode 31 is disposed on the main surface of the substrate 11, the first opening 21 exposes at least a part of the first electrode 31, and the first electrode 31 is applied with a first electrical signal.

[0129] Referring to FIG. 2, 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 and defines a plurality of second openings 41, a first opening 21 on the main surface of the substrate 11 has a projection within the projection range of one second opening 41 on the back plate; the second electrode 60 includes a first part 601 at least partially located in the second opening 41, the first part 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 part 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.

[0130] For example, as shown in FIG. 2, the isolation structure 40 includes a plurality of sub-isolation structures, the plurality of sub-isolation structures include a first sub-isolation structure 40a and a second sub-isolation structure 40b spaced apart and disconnected from each other; the first part 601 of the second electrode 60 includes a first sub-electrode 601a and a second sub-electrode 601b located in different second openings 41 respectively and disconnected from each other; the first sub-electrode 601a is electrically connected with the first sub-isolation structure 40a, and the second sub-electrode 601b is electrically connected with the second sub-isolation structure 40b.

[0131] For example, the first electrode 31 is an anode, and the second electrode 60 is a cathode.

[0132] For example, the first electrical signal is a first power voltage, for example, a high-level signal VDD, and the second electrical signal is a second power voltage, for example, a low-level signal VSS. For example, the second power voltage terminal providing the second power voltage can be a ground terminal, but is not limited to the ground terminal, as long as a voltage lower than the first power voltage is provided to make the difference between the first power voltage and the second power voltage meet the light-emitting requirement of the light-emitting material.

[0133] The first sub-isolation structure 40a and the second sub-isolation structure 40b are spaced apart from each other and disconnected, where "disconnected" refers to non-electrically connected. In this way, different second electric signals can be provided to the second electrodes 60 of the sub-pixels of different colors through different sub-isolation structures, such as the first sub-isolation structure 40a and the second sub-isolation structure 40b, so that the difference between the first electric signal and the second electric signal in the sub-pixels of different colors is different, for example, the difference between the second electric signal and the first sub-signal is different from the difference between the second electric signal and the second sub-signal, to meet the different requirements of the light-emitting materials emitting light of different colors for driving voltage, avoid providing an excessively high voltage difference to the light-emitting materials with low requirements for the difference between the first electric signal and the second electric signal, and thus avoid the problem of excessive heating of the light-emitting materials under the action of an excessively high voltage difference.

[0134] For example, the second electric 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, and the values of the first sub-signal and the second sub-signal are different, so that the difference between the second electric signal and the first sub-signal is different from the difference between the second electric signal and the second sub-signal.

[0135] For example, referring to FIG. 2, the isolation structure 40 further includes a third sub-isolation structure 40c, the third sub-isolation structure 40c is spaced apart from the first sub-isolation structure 40a and the second sub-isolation structure 40b; the second electric signal further includes a third sub-signal, the third sub-isolation structure 40c 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 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. In this way, different second electric signals can be provided to the second electrodes 60 of the sub-pixels of three different colors through the first sub-isolation structure 40a, the second sub-isolation structure 40b and the third sub-isolation structure 40c, respectively, so that the difference between the first electric signal and the second electric signal in the sub-pixels of three different colors is different, for example, the difference between the second electric signal and the first sub-signal, the difference between the second electric signal and the second sub-signal, and the difference between the second electric signal and the third sub-signal are different from each other, to meet the different requirements of the light-emitting materials emitting light of three different colors for driving voltage, and thus avoid the problem of excessive heating of the light-emitting materials under the action of an excessively high voltage.

[0136] FIG. 3 is a partial plan view of a display substrate according to an embodiment of the present disclosure. Referring to FIGS. 2 and 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 each include a corresponding sub-isolation structure; 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 respectively located in the first sub-pixel P1, the second sub-pixel P2, and the third sub-pixel P3.

[0137] For example, the first opening 21 includes a first sub-opening 211, a second sub-opening 212, and a third sub-opening 213 respectively located in the first sub-pixel P1, the second sub-pixel P2, and the third sub-pixel P3; 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 respectively located in the light-emitting regions of the plurality of sub-pixels, and the sub-light-emitting layer 501 is a portion that is effective for light emission. 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.

[0138] 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, i.e., 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 the respective sub-pixels can also be other colors, and are not limited to red, green, and blue, and the number of sub-pixels included in one pixel unit is also not limited to two or three, but can be more than three, for example, four sub-pixels respectively emitting light of different colors, and each of the four sub-pixels is provided with a corresponding sub-isolation structure.

[0139] For example, under the condition of high light, 3500 lumens (3500 nit) brightness condition, in a single OLED device, the voltage value range of the second electric signal of the first sub-pixel can be set to 1.7-5.17V, the voltage value range of the second electric signal of the first sub-pixel can be set to 2.22-5.06V, and the voltage value range of the second electric signal of the third sub-pixel can be set to 0.92-4.87V. In theory, the voltage difference that enables each sub-pixel to emit light normally can save 0.3V, and the heat reduction per unit time is 1%. This is conducive to reducing heat and prolonging the service life of the light-emitting device and the display substrate.

[0140] For example, according to the test, under the condition of 2000 lumens (2000 nit) brightness condition, in a Tandem OLED device, the voltage value range of the second electric signal of the first sub-pixel can be set to 1.7-4.73V, the voltage value range of the second electric signal of the first sub-pixel can be set to 4.77V, and the voltage value range of the second electric 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 reduction per unit time is 3%.

[0141] Therefore, in the display substrate provided by the embodiments of the present disclosure, the second electrode of the sub-isolation structure for sub-pixels of different colors provides differentiated second electric signals, which can effectively reduce the heat generated by the light-emitting device.

[0142] Referring to FIG. 3, the interval between the first sub-isolation structure 40a and the second sub-isolation structure 40b adjacent to each other is a first interval, the interval between the first sub-isolation structure 40a and the third sub-isolation structure 40c adjacent to each other is a second interval, and the interval between the second sub-isolation structure 40b and the third sub-isolation structure 40c adjacent to each other is a third interval; at least two of the first interval, the second interval and the third interval are different. In the same plane parallel to the main surface of the substrate, at least two of the lateral distance of the first interval, the lateral distance of the second interval and the lateral distance of the third interval are different, the lateral direction being parallel to the main surface of the substrate. That is, the comparison of the lateral distance of the first interval, the lateral distance of the second interval and the lateral distance of the third interval is made in the same plane parallel to the main surface of the substrate 11, or in other words, the direction perpendicular to the main surface of the substrate 11 is the longitudinal direction, and the comparison of the lateral distance of the first interval, the lateral distance of the second interval and the lateral distance of the third interval is made in the same height in the longitudinal direction. Thus, in the display substrate, the distance between the light-emitting regions corresponding to at least any two of the first sub-pixel, the second sub-pixel and the third sub-pixel (referring to the distance between the edges of the adjacent light-emitting regions close to each other) is different, and at least two of the first interval, the second interval and the third interval are different and inconsistent, so that the three kinds of isolation structures for providing different second electric signals can be more reasonably realized, the heat of the display substrate is reduced, the space is saved, the layout of the multiple sub-isolation structures is optimized, and higher resolution (Pixel Per Inch, PPI) is achieved.

[0143] For example, referring to FIG. 3, the display substrate 100 includes a pixel array including a plurality of pixel units arranged in an array, at least one pixel unit including one second sub-pixel P2, two first sub-pixels P1 respectively located on both sides of the one second sub-pixel P2 in a first direction D1, and two third sub-pixels P3 respectively located on both sides of the one second sub-pixel P2 in a second direction D2. As shown in FIG. 3, the labels in each pixel represent the numbers of the following sub-pixels. Illustratively, the five sub-pixels in the dashed box in FIG. 3 constitute a pixel unit P0, in which the two first sub-pixels P1 are a first sub-pixel P1 No. 1 and a first sub-pixel P1 No. 2, the two third sub-pixels P3 are a third sub-pixel P3 No. 1 and a third sub-pixel P3 No. 2, the first sub-pixel P1 No. 1 and the third sub-pixel P3 No. 2 are arranged in a row direction D3, the first sub-pixel P1 No. 2 and the third sub-pixel P3 No. 2 are arranged in a column direction D4, the row direction D3 and the column direction D4 are perpendicular to each other and both intersect the first direction D1 and the second direction D2; the distance between the center of the first emission area EA1 of the first sub-pixel P1 No. 1 and the center of the second emission area EA2 of the one second sub-pixel P2 is less than the distance between the center of the first emission area EA1 of the first sub-pixel P1 No. 2 and the center of the second emission area EA2 of the one second sub-pixel P2, the distance between the center of the first emission area EA1 of the first sub-pixel P1 No. 1 and the center of the second emission area EA2 of the third sub-pixel P3 No. 2 is less than the distance between the center of the first emission area EA1 of the first sub-pixel P1 No. 2 and the center of the third emission area EA3 of the third sub-pixel P3 No. 1; the arrangement shown in FIG. 3 is a trapezoidal arrangement, which is referred to as a first trapezoidal arrangement.

[0144] Referring to FIG. 3, in the first trapezoidal arrangement of the pixel array, for example, the pixel array includes four second sub-pixels P2 surrounding and adjacent to the first sub-pixel P1 No. 1, which are the second sub-pixel P2 No. 1, the second sub-pixel P2 No. 2, the second sub-pixel P2 No. 3 and the second sub-pixel P2 No. 4 arranged in sequence in a counterclockwise direction. The second sub-pixel P2 No. 4, the first sub-pixel P1 No. 1 and the second sub-pixel P2 No. 2 are arranged in the first direction D1, the second sub-pixel P2 No. 1, the first sub-pixel P1 No. 1 and the second sub-pixel P2 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 No. 1 and the center of the first light-emitting area EA1 of the first sub-pixel P1 No. 1 is equal to the distance between the center of the second light-emitting area EA2 of the second sub-pixel P2 No. 4 and the center of the first light-emitting area EA1 of the first sub-pixel P1 No. 1, the distance between the center of the second light-emitting area EA2 of the second sub-pixel P2 No. 2 and the center of the first light-emitting area EA1 of the first sub-pixel P1 No. 1 is equal to the distance between the center of the second light-emitting area EA2 of the second sub-pixel P2 No. 3 and the center of the first light-emitting area EA1 of the first sub-pixel P1 No. 1, and the distance between the center of the second light-emitting area EA2 of the second sub-pixel P2 No. 1 and the center of the first light-emitting area EA1 of the first sub-pixel P1 No. 1 is greater than the distance between the center of the second light-emitting area EA2 of the second sub-pixel P2 No. 2 and the center of the first light-emitting area EA1 of the first sub-pixel P1 No. 1.

[0145] For example, in the first arrangement shown in FIG. 3, in one pixel unit P0, the centers of the first light-emitting area of the first sub-pixel P1 No. 1, the third light-emitting area of the third sub-pixel P3 No. 1, the first light-emitting area of the first sub-pixel P1 No. 2 and the third light-emitting area of the third sub-pixel P3 No. 2 are sequentially connected to form a first trapezoid (as shown by the trapezoidal dashed line frame in FIG. 3), and the intersection of the two diagonal lines of the first isosceles trapezoid is located within the range of the second light-emitting area of one second sub-pixel P2 (i.e., the second sub-pixel No. 2 in FIG. 3) surrounded by the first sub-pixel P1 No. 1, the first sub-pixel P1 No. 2, the third sub-pixel P3 No. 1 and the third sub-pixel P3 No. 2. For example, the intersection of the two diagonal lines of the isosceles trapezoid does not coincide with the center of the second light-emitting area of the one second sub-pixel P2. Alternatively, in other embodiments, the intersection of the two diagonal lines of the first isosceles trapezoid can coincide with the center of the second light-emitting area of the one second sub-pixel P2.

[0146] For example, referring to FIG. 3, the first trapezoid is an isosceles trapezoid. A, B, C, and D represent four vertices of the first trapezoid, respectively. For example, the upper base and the lower base of the first trapezoid extend along the row direction D3, respectively. The upper base of the first trapezoid is formed by a line connecting the center of the first light-emitting region of the first sub-pixel P1 and the center of the third light-emitting region of the second sub-pixel P3. The lower base of the first trapezoid is formed by a line connecting the center of the third light-emitting region of the first sub-pixel P1 and the center of the first light-emitting region of the second sub-pixel P3.

[0147] Correspondingly, in the pixel unit P0, a figure formed by sequentially connecting the center of the second opening 41 of the two first sub-pixels P1 and the center of the second opening 41 of the two third sub-pixels P3 along a direction surrounding one second sub-pixel P2 (for example, the second sub-pixel P2 in FIG. 3) is a third trapezoid. The intersection of the two diagonal lines of the third trapezoid is located in the range of the second opening 41 of the surrounded second sub-pixel P2 (for example, the second sub-pixel P2 in FIG. 3).

[0148] The arrangement of the third trapezoid can adapt to the pixel arrangement mode in the trapezoidal arrangement to set the sub-isolation structure for each sub-pixel, optimize the arrangement of the plurality of sub-isolation structures corresponding to the pixel arrangement mode, improve the space utilization, and improve the PPI of the display substrate.

[0149] 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 upper base of the third trapezoid is formed by a line connecting 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 P3. The lower base of the third trapezoid is formed by a line connecting 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 P3. This is to further adapt the shape of the third trapezoid to the shape of the first trapezoid, so that the arrangement mode of the plurality of sub-isolation structures is further consistent with the pixel arrangement mode.

[0150] For example, for each of at least part of the plurality of sub-pixels, the shape of the normal projection of the second opening of the sub-pixel on the main surface of the substrate is the same as the shape of the normal projection of the light-emitting region of the sub-pixel on the main surface of the substrate. The center of the normal projection of the second opening of the sub-pixel on the main surface of the substrate substantially coincides with the center of the normal 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.

[0151] Corresponding to the first trapezoidal arrangement of the above-mentioned pixels, for example, the distance between the first sub-isolation structure 40a of the first sub-pixel No. 1 P1 and the second sub-isolation structure 40b of the second sub-pixel P2 (i.e., the second sub-pixel No. 2 P2 in FIG. 3) is less than the distance between the first sub-isolation structure 40a of the first sub-pixel No. 2 P1 and the second sub-isolation structure 40b of the second sub-pixel P2, and the distance between the first sub-isolation structure 40a of the first sub-pixel No. 1 P1 and the third sub-isolation structure 40c of the third sub-pixel P3 is less than the distance between the first sub-isolation structure 40a of the first sub-pixel No. 2 P1 and the third sub-isolation structure 40c of the third sub-pixel P3. In this way, the layout of the plurality of sub-isolation structures for providing different second electrical signals can be optimized to adapt to the first trapezoidal arrangement, save space while reducing heat generation of the display substrate, optimize the layout of the plurality of sub-isolation structures, and achieve a higher PPI.

[0152] The center of the second opening of the first sub-pixel No. 1 and the center of the second opening of the second sub-pixel P2 are 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 second sub-pixel P2, 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 P3 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 P3; 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. The second opening of each sub-pixel of the display substrate provided by the embodiments of the present disclosure can adapt to the first trapezoidal arrangement, optimize the layout of the plurality of sub-isolation structures for providing different second electrical signals, save space while reducing heat generation of the display substrate, and achieve a higher PPI.

[0153] For example, referring to FIG. 3, the distance between the second sub-isolation structure 40b of the No. 1 second sub-pixel P2 and the first sub-isolation structure 40a of the No. 1 first sub-pixel P1 in the second direction D2 is L1, the distance between the second sub-isolation structure 40b of the No. 4 second sub-pixel P2 and the first sub-isolation structure 40a of the No. 1 first sub-pixel P1 in the first direction D1 is L4, the distance between the second sub-isolation structure 40b of the No. 2 second sub-pixel P2 and the first sub-isolation structure 40a of the No. 1 first sub-pixel P1 in the first direction D1 is L2, the distance between the second sub-isolation structure 40b of the No. 3 second sub-pixel P2 and the first sub-isolation structure 40a of the No. 1 first sub-pixel P1 in the second direction D2 is L3, and L1=L4>L2=L3, so as to design the distance between the various sub-isolation structures for providing different second electric signals according to the characteristics of the distance between the various sub-pixels in the first trapezoidal arrangement, further optimize the layout of the various sub-isolation structures for providing different second electric signals, save space while reducing heat generation of the display substrate, and achieve higher PPI.

[0154] For example, referring to FIG. 3, the pixel array includes four third sub-pixels P3 surrounding and adjacent to the No. 1 first sub-pixel P1, which are the No. 1 third sub-pixel P3, the No. 2 third sub-pixel P3, the No. 3 third sub-pixel P3, and the No. 4 third sub-pixel P3 arranged in sequence in a counterclockwise direction; the No. 1 third sub-pixel P3, the No. 1 first sub-pixel P1, and the No. 3 third sub-pixel P3 are arranged in sequence in the column direction D4, and the No. 4 third sub-pixel P3, the No. 1 first sub-pixel P1, and the No. 2 third sub-pixel P3 are arranged in sequence in the row direction D3; the distance between the first sub-isolation structure 40a of the No. 1 first sub-pixel P1 and the third sub-isolation structure 40c of the No. 4 third sub-pixel P3 is L5, the distance between the first sub-isolation structure 40a of the No. 1 first sub-pixel P1 and the third sub-isolation structure 40c of the No. 2 third sub-pixel P3 is L6, the distance between the first sub-isolation structure 40a of the No. 1 first sub-pixel P1 and the third sub-isolation structure 40c of the No. 3 third sub-pixel P3 is L7, and the distance between the first sub-isolation structure 40a of the No. 1 first sub-pixel P1 and the third sub-isolation structure 40c of the No. 1 third sub-pixel P3 is L8, and L5>L7=L8>L6, so as to further design the distance between the various sub-isolation structures for providing different second electric signals according to the characteristics of the distance between the various sub-pixels in the first trapezoidal arrangement, further optimize the layout of the various sub-isolation structures for providing different second electric signals, save space while reducing heat generation of the display substrate, optimize the layout of the pixel structure, and achieve higher PPI.

[0155] For example, referring to FIG. 3, the pixel array includes a plurality of rows of sub-pixels extending along the row direction D3 and a plurality of columns of sub-pixels extending along the column direction D4. For example, in FIG. 3, a first row R1 includes a plurality of second sub-pixels P2 arranged along the row direction D3, and a second row R2 adjacent to the first row R1 includes a plurality of first sub-pixels P1 and a plurality of third sub-pixels P3 arranged along the row direction D3. For example, the first row R1 and the second row R2 constitute a row repeating unit, and the pixel array includes a plurality of row repeating units arranged along the column direction D4.

[0156] For example, referring to FIG. 3, the centers of the second light-emitting areas EA2 of the second sub-pixels P2 located in the odd-numbered columns in the same row extending along the row direction D3 are located on the same straight line extending along the row direction D3, and the centers of the second light-emitting areas EA2 of the second sub-pixels P2 located in the even-numbered columns in the same row extending along the row direction D3 are located on the same straight line extending along the row direction D3, or the centers of the second light-emitting areas EA2 of the second sub-pixels P2 located in the same row extending along the row direction D3 are all located on the same straight line extending along the row direction D3.

[0157] For example, referring to FIG. 3, the first ends of the second light-emitting areas EA2 of the second sub-pixels P2 located in the same row extending along the row direction D3 in the column direction D4 are all located on the same straight line extending along the row direction D3, the second ends of the second light-emitting areas EA2 of the second sub-pixels P2 located in the same row extending along the row direction D3 in the column direction D4, which are opposite to the first ends, are all located on the same straight line extending along the row direction D3, that is, for the second sub-pixels P2 located in the same row, the two ends of the second light-emitting areas EA2 of the second sub-pixels P2 located in the odd-numbered columns are aligned with each other, the two ends of the second light-emitting areas EA2 of the second sub-pixels P2 located in the even-numbered columns are aligned with each other, or for the second sub-pixels P2 located in the same row, the centers of the second light-emitting areas EA2 of the second sub-pixels P2 located in the odd-numbered columns are located on the same straight line extending along the row direction D3, the centers of the second light-emitting areas EA2 of the second sub-pixels P2 located in the even-numbered columns are located on the same straight line extending along the row direction D3.

[0158] Similarly, for the second sub-pixels P2 located in the same column, the two ends of the second light-emitting areas EA2 of the second sub-pixels P2 located in the odd-numbered rows are aligned with each other, the two ends of the second light-emitting areas EA2 of the second sub-pixels P2 located in the even-numbered rows are aligned with each other, or for the second sub-pixels P2 located in the same column, the centers of the second light-emitting areas EA2 of the second sub-pixels P2 located in the odd-numbered rows are located on the same straight line extending along the column direction D4, the centers of the second light-emitting areas EA2 of the second sub-pixels P2 located in the even-numbered rows are located on the same straight line extending along the column direction D4.

[0159] For example, referring to FIG. 3, the distance between the centers of the second sub-pixels in each column in two adjacent rows of second sub-pixels is equal; for example, the centers of the second light emitting areas EA2 of the second sub-pixels P2 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 areas EA2 of the second sub-pixels P2 in the odd-numbered rows are on the same straight line extending along the column direction D4, and the centers of the second light emitting areas EA2 of the second sub-pixels P2 in the even-numbered rows are on the same straight line extending along the column direction D4; of course, in other embodiments, the centers of the second light emitting areas EA2 of the second sub-pixels P2 in the same column extending along the column direction D4 can also be on the same straight line extending along the column direction D4 in the first trapezoidal arrangement.

[0160] The center of the first light emitting area EA1 of the first sub-pixel P1 and the center of the third light emitting area EA3 of the third sub-pixel P3 in the same row extending along the row direction D3 are on the same straight line extending along the row direction D3.

[0161] The center of the first light emitting area EA1 of the first sub-pixel P1 and the center of the third light emitting area EA3 of the third sub-pixel P3 in the same column extending along the column direction D4 are not on the same straight line extending along the column direction D4.

[0162] According to the above arrangement of the pixels, in order to optimize the layout of the various sub-isolation structures for providing different second electrical signals, save space, and achieve a higher PPI, for example, the first ends of the second openings 41 of the second sub-pixels P2 in the same row extending along the row direction D3 are on the same straight line extending along the row direction D3, and the second ends of the second openings 41 of the second sub-pixels P2 in the same row extending along the row direction D3, which are opposite to the first ends, are on the same straight line extending along the row direction D3; the distance between the centers of the second openings 41 of the second sub-pixels P2 in each column in two adjacent rows of second sub-pixels P2 is equal; the center of the second opening 41 of the first sub-pixel P1 and the center of the second opening 41 of the third sub-pixel P3 in the same row extending along the row direction D3 are on the same straight line extending along the row direction D3; and the center of the second opening 41 of the first sub-pixel P1 and the center of the second opening 41 of the third sub-pixel P3 in the same column extending along the column direction D4 are not on the same straight line extending along the column direction D4.

[0163] In this application, the concepts of pixel rows and pixel columns can be interchanged with each other, and here only two names are used to distinguish the pixels in two arrangement directions; for example, when the row direction and the column direction are perpendicular, the display substrate can be rotated by 90° to realize the interchange of the pixel rows and the pixel columns.

[0164] For example, referring to FIG. 4, the arrangement of pixels shown in FIG. 4 is another trapezoidal arrangement, referred to as a second trapezoidal arrangement. In the second trapezoidal arrangement, similar to FIG. 3, the pixel array can also include a plurality of rows of sub-pixels extending along a first direction D1 and a plurality of columns of sub-pixels extending along a second direction D2. For example, the first direction D1 is perpendicular to the second direction D2. The centers of the second emission areas EA2 of the plurality of second sub-pixels P2 located in the same row extending along a row direction D3 are also not on the same straight line extending along the row direction D3; for the plurality of second sub-pixels P2 located in the same row, the centers of the second emission areas of the plurality of second sub-pixels P2 located in odd-numbered columns are on the same straight line extending along the row direction D3, and the centers of the second emission areas of the plurality of second sub-pixels P2 located in even-numbered columns are on the same straight line extending along the row direction D3; and the centers of the second emission areas EA2 of the plurality of second sub-pixels P2 located in the same column extending along a column direction D4 are also not on the same straight line extending along the column direction D4; for the plurality of second sub-pixels P2 located in the same column, the centers of the second emission areas of the plurality of 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 emission areas of the plurality of second sub-pixels P2 located in even-numbered rows are on the same straight line extending along the column direction D4.

[0165] In the second trapezoidal arrangement, the pattern formed by sequentially connecting the center of the second emission area of the first second sub-pixel P1, the center of the second emission area of the second second sub-pixel P2, the center of the second emission area of the third second sub-pixel P2, and the center of the second emission area of the fourth second sub-pixel P2 is a second trapezoid, and the intersection of the two diagonal lines of the second trapezoid is located within the range of the first emission area of a first sub-pixel P1 (i.e., the first sub-pixel 1 in FIG. 4) surrounded by the first second sub-pixel P1, the second second sub-pixel P2, the third second sub-pixel P2, and the fourth second sub-pixel P2. For example, the intersection of the two diagonal lines of the second trapezoid does not coincide with the center of the first emission area of the first sub-pixel 1. Alternatively, in other embodiments, the intersection of the two diagonal lines of the second trapezoid can coincide with the center of the first emission area of the first sub-pixel 1.

[0166] For example, in some embodiments, in the second trapezoidal arrangement, the centers of the second light emitting regions of the plurality of second sub-pixels located in the same column extending along the column direction D4 can be located on the same straight line extending along the column direction D4, and the centers of the second openings of the plurality of second sub-pixels located in the same column extending along the column direction D4 can be located 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 respectively extend along the column direction, and the line connecting 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 line connecting 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.

[0167] For example, the intersection of the two diagonal lines of the second isosceles trapezoid does not coincide with the center of the first light emitting region of the No. 1 first sub-pixel P1 or coincide with the center of the first light emitting region of the No. 1 first sub-pixel P1.

[0168] Correspondingly, the pattern formed by sequentially connecting the center of the second opening 41 of the No. 1 second sub-pixel P2, the center of the second opening 41 of the No. 2 second sub-pixel P2, the center of the second opening 41 of the No. 3 second sub-pixel P2, and the center of the second opening 41 of the No. 4 second sub-pixel P2 is a fourth trapezoid, and the intersection of the two diagonal lines of the fourth trapezoid is located within the range of the second opening 41 of the No. 1 first sub-pixel P1.

[0169] The arrangement of the fourth trapezoid can adapt to the arrangement of the pixels arranged in a trapezoidal manner to arrange the sub-isolation structures for each sub-pixel, optimize the arrangement of the plurality of sub-isolation structures corresponding to the pixel arrangement manner, improve the space utilization, and improve the PPI of the display substrate.

[0170] For example, the fourth trapezoid is an isosceles trapezoid, the upper base and the lower base of the fourth trapezoid respectively extend along the row direction D3, the line connecting the center of the second opening 41 of the No. 1 second sub-pixel P2 and the center of the second opening 41 of the No. 2 second sub-pixel P2 constitutes the upper base of the fourth trapezoid, and the line connecting the center of the second opening 41 of the No. 3 second sub-pixel P2 and the center of the second opening 41 of the No. 4 second sub-pixel P2 constitutes the lower base of the fourth trapezoid, so as to further adapt the shape of the fourth trapezoid to the shape of the second trapezoid, so that the arrangement manner of the plurality of sub-isolation structures is further consistent with the pixel arrangement manner.

[0171] The above-mentioned arrangement of the sub-isolation structures corresponding to the characteristics of various pixel arrangements is for optimizing the layout of the plurality of sub-isolation structures providing different second electrical signals, reducing the heat generation of the display substrate, saving space, and achieving higher PPI.

[0172] The second trapezoidal arrangement shown in FIG. 4 has the following differences from FIG. 3.

[0173] Referring to FIG. 4, among the plurality of second sub-pixels P2 located in the same row extending along the row direction D3, the first ends of the second sub-pixels P2 located in the odd-numbered 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 the even-numbered 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 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 the odd-numbered columns opposite to the first ends thereof 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 the even-numbered columns opposite to the first ends thereof 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 adjacent columns are not on the same straight line extending along the row direction D3, that is, for the plurality of second sub-pixels P2 located in the same row, the second light-emitting areas EA2 of the two adjacent second sub-pixels P2 are not aligned with each other in the first ends thereof in the column direction D4 and are not aligned with each other in the second ends thereof in the column direction.

[0174] For example, referring to FIG. 4, for the two adjacent rows of second sub-pixels extending along the row direction D3, the distance between the centers of the second light-emitting areas EA2 of the two adjacent second sub-pixels P2 in the columns direction D4 is not equal. For example, the No. 1 second sub-pixel and the No. 2 second sub-pixel are second sub-pixels located in the same row and adjacent columns, the No. 3 second sub-pixel and the No. 4 second sub-pixel are second sub-pixels located in the same row and adjacent columns, the No. 1 second sub-pixel and the No. 4 second sub-pixel are second sub-pixels located in the same column and adjacent rows, and the No. 2 second sub-pixel and the No. 3 second sub-pixel are second sub-pixels located in the same column and adjacent rows; the distance between the center of the light-emitting area of the No. 2 second sub-pixel and the center of the light-emitting area of the No. 3 second sub-pixel in the column direction is not equal to the distance between the center of the light-emitting area of the No. 1 second sub-pixel and the center of the light-emitting area of the No. 4 second sub-pixel in the column direction.

[0175] For example, referring to FIG. 4, the distance between the center of the light-emitting area of the No. 2 second sub-pixel P2 and the center of the light-emitting area of the No. 3 second sub-pixel P2 in the column direction D4 is greater than the distance between the center of the light-emitting area of the No. 1 second sub-pixel P2 and the center of the light-emitting area of the No. 4 second sub-pixel P2 in the column direction D4, for example, the difference between the two is 4-5 microns, of course, the difference between the two is not limited to this range, and can be designed according to different sizes of display substrates and PPIs to be achieved and other factors.

[0176] Corresponding to the above arrangement of the pixels, in order to optimize the layout of the plurality of sub-isolation structures for providing different second electrical signals, save space, and achieve a higher PPI, for example, referring to FIG. 4, in the plurality of second sub-pixels P2 located in the same row extending along the row direction D3, the two ends of the second openings 41 of the plurality of second sub-pixels P2 located in the odd-numbered columns are respectively aligned with each other in the column direction D4, and the two ends of the second openings 41 of the plurality of second sub-pixels P2 located in the even-numbered columns are respectively aligned with each other in the column direction D4; for two adjacent rows of second sub-pixels P2 extending along the row direction D3, the distance between the centers of the second openings 41 of the two adjacent second sub-pixels P2 in adjacent columns in the column direction D4 is not equal.

[0177] For example, the distance between the center of the second opening 41 of the second sub-pixel No. 2 and the center of the second opening 41 of the second sub-pixel No. 3 in the column direction D4 is greater than the distance between the center of the second opening 41 of the second sub-pixel No. 1 and the center of the second opening 41 of the second sub-pixel No. 4 in the column direction D4.

[0178] For example, the distance between the second light-emitting region of the second sub-pixel P2 arranged in the first direction D1 and adjacent to each other 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 second sub-pixels P2 arranged in the row direction D3 and adjacent to each other in the row direction D3; accordingly, the distance L9 between the second sub-isolation structure 40b of the second sub-pixel P2 arranged in the first direction D1 and adjacent to each other 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 second sub-pixels P2 arranged in the row direction D3 and adjacent to each other in the row direction D3. In this way, the spacing between the plurality of sub-isolation structures for providing different second electrical signals can be designed to adapt to the above distance relationship between the light-emitting regions of the sub-pixels, further optimizing the layout of the plurality of sub-isolation structures for providing different second electrical signals, saving space, and achieving a higher PPI while reducing heat generation of the display substrate.

[0179] For example, referring to FIG. 4, the distance between the second light-emitting region of the second sub-pixel P2 and the third light-emitting region of the third sub-pixel P3 arranged in the first direction D1 and adjacent to each other in the first direction D1 is not equal to the distance between the second light-emitting region of the second sub-pixel P2 and the third light-emitting region of the third sub-pixel P3 arranged in the second direction D2 and adjacent to each other in the first direction D1; correspondingly, the distance L11 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 arranged in the first direction D1 and adjacent to each other in the first direction D1 is not equal to the distance L12 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 arranged in the second direction D2 and adjacent to each other in the first direction D1. In this way, the spacing between the various sub-isolation structures providing different second electrical signals can be designed to adapt to the above-mentioned relationship of the distances between the light-emitting regions of the sub-pixels, further optimizing the layout of the various sub-isolation structures providing different second electrical signals, saving space while reducing heat generation of the display substrate, optimizing the layout of the pixel structure, and achieving a higher PPI.

[0180] FIG. 5 is a partial plan view of yet another display substrate according to an embodiment of the present disclosure. The embodiment shown in FIG. 5 differs from that shown in FIG. 3 in the following aspects. Other features, such as the specific structural features of each sub-isolation structure, the arrangement of the light-emitting layer, the pixel definition layer, the first electrode, and the second electrode, are the same as those of the embodiment shown in FIG. 3.

[0181] For example, referring to FIG. 5, the display substrate 100 includes a pixel array including a plurality of pixel units arranged in an array, at least one pixel unit including one second sub-pixel P2, two first sub-pixels P1 respectively located on both sides of the one second sub-pixel P2 (i.e., the second sub-pixel P2 No. 2 in FIG. 5) in the first direction D1, and two third sub-pixels P3 respectively located on both sides of the one second sub-pixel P2 in the second direction D2; the two first sub-pixels P1 are first sub-pixel P1 No. 1 and first sub-pixel P1 No. 2, respectively, and the two third sub-pixels P3 are third sub-pixel P3 No. 1 and third sub-pixel P3 No. 2, respectively; first sub-pixel P1 No. 1 and third sub-pixel P3 No. 2 are arranged in a row direction D3, and first sub-pixel P1 No. 2 and third sub-pixel P3 No. 2 are arranged in a column direction D4; the row direction D3 and the column direction D4 are perpendicular to each other and intersect the first direction D1 and the second direction D2; the distance between the center of the first light-emitting area EA1 of first sub-pixel P1 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 first sub-pixel P1 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 first sub-pixel P1 No. 1 and the center of the second light-emitting area EA2 of third sub-pixel P3 No. 2 is equal to the distance between the center of the first light-emitting area EA1 of first sub-pixel P1 No. 2 and the center of the third light-emitting area EA3 of third sub-pixel P3 No. 1; the distance between the center of the first light-emitting area EA1 of first sub-pixel P1 No. 1 and the center of the second light-emitting area EA2 of third sub-pixel P3 No. 1 is equal to the distance between the center of the first light-emitting area EA1 of first sub-pixel P1 No. 2 and the center of the third light-emitting area EA3 of third sub-pixel P3 No. 2; the pixel array includes four second sub-pixels P2 surrounding first sub-pixel P1 No. 1 and adjacent to first sub-pixel P1 No. 1, which are second sub-pixel P2 No. 1, second sub-pixel P2 No. 2, second sub-pixel P2 No. 3, and second sub-pixel P2 No. 4 arranged in turn in a counterclockwise direction; second sub-pixel P2 No. 4, first sub-pixel P1 No. 1, and second sub-pixel P2 No. 2 are arranged in the first direction D1, and second sub-pixel P2 No. 1, first sub-pixel P1 No. 1, and second sub-pixel P2 No. 3 are arranged in the second direction D2; the distance between the center of the second light-emitting area EA2 of second sub-pixel P2 No. 1 and the center of the first light-emitting area EA1 of first sub-pixel P1 No. 1, the distance between the center of the second light-emitting area EA2 of second sub-pixel P2 No. 2 and the center of the first light-emitting area EA1 of first sub-pixel P1 No. 1, the distance between the center of the second light-emitting area EA2 of second sub-pixel P2 No. 3 and the center of the first light-emitting area EA1 of first sub-pixel P1 No. 1, and the distance between the center of the second light-emitting area EA2 of second sub-pixel P2 No. 4 and the center of the first light-emitting area EA1 of first sub-pixel P1 No. 1 are all equal.

[0182] Accordingly, in the embodiment shown in FIG. 5, the distance between the sub-isolation structures 40 of any two adjacent sub-pixels in the plurality of sub-pixels is equal to each other. For example, the distance between the sub-isolation structures 40 of any two sub-pixels in the first sub-pixel P1, the second sub-pixel P2 and the third sub-pixel P3 is equal to each other. In this way, corresponding to the diamond arrangement, the distance between the sub-isolation structures of the sub-pixels of different colors is equal, and the arrangement of the plurality of sub-isolation structures for providing different second electrical signals can be designed to adapt to the characteristics of the diamond arrangement, further optimizing the layout of the plurality of sub-isolation structures for providing different second electrical signals, saving space while reducing heat generation of the display substrate, and achieving higher PPI.

[0183] For example, in the embodiment shown in FIG. 5, in order to further optimize the layout of the sub-isolation structures, the distance between the center of the second opening 41 of the first sub-pixel P1 No. 1 and the center of the second light-emitting area 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 No. 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 No. 1 and the center of the second opening 41 of the third sub-pixel P3 No. 2 is equal to the distance between the center of the second opening 41 of the first sub-pixel P1 No. 2 and the center of the second opening 41 of the third sub-pixel P3 No. 1, the distance between the center of the second opening 41 of the first sub-pixel P1 No. 1 and the center of the second opening 41 of the third sub-pixel P3 No. 1 is equal to the distance between the center of the second opening 41 of the first sub-pixel P1 No. 2 and the center of the second opening 41 of the third sub-pixel P3 No. 2; the distance between the center of the second opening 41 of the second sub-pixel P2 No. 1 and the center of the second opening 41 of the first sub-pixel P1 No. 1, the distance between the center of the second opening 41 of the second sub-pixel P2 No. 2 and the center of the second opening 41 of the first sub-pixel P1 No. 1, the distance between the center of the second opening 41 of the second sub-pixel P2 No. 3 and the center of the second opening 41 of the first sub-pixel P1 No. 1, and the distance between the center of the second opening 41 of the second sub-pixel P2 No. 4 and the center of the second opening 41 of the first sub-pixel P1 No. 1 are all equal.

[0184] For example, for the display substrate provided by any of the embodiments of the present disclosure, for each of at least part of the plurality of sub-pixels, for example, for each of the sub-pixels that play a display function, the shape of the orthographic 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 orthographic projection of the light-emitting region of the sub-pixel (the light-emitting regions of the first to third sub-pixels are respectively the first to third light-emitting regions) on the main surface of the substrate 11, and the center of the orthographic 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 orthographic projection of the light-emitting region of the sub-pixel on the main surface of the substrate 11. The feature "substantially coincides" herein 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.

[0185] FIG. 6 is a partial plan view of another display substrate provided by an embodiment of the present disclosure, which is different from the embodiment shown in FIG. 3.

[0186] For example, referring to FIG. 6, the display substrate 100 includes a pixel array including a plurality of rows of sub-pixels extending along a row direction D3 and a plurality of columns of sub-pixels extending along a column direction D4, the plurality of columns of sub-pixels including a first column of sub-pixels and a second column of sub-pixels adjacent to each other; one first sub-pixel P1 and one second sub-pixel P2 located in the first column of sub-pixels and adjacent to each other, and one third sub-pixel P3 located in the second column of sub-pixels constitute a pixel unit, the pixel array includes a plurality of pixel units arranged in an array; taking a plane perpendicular to the row direction D3 as a reference plane, in one pixel unit, the orthographic projection of the first sub-pixel P1 and the second sub-pixel P2 on the reference plane at least partially overlaps with the orthographic projection of the third sub-pixel P3 on the reference plane; the distance between the sub-isolation structures 40 of any two adjacent sub-pixels in the plurality of sub-pixels is equal to each other. The arrangement of the pixels shown in FIG. 6 has the following advantages: the length in the first direction D1 and the length in the second direction D2 of the planar figure of one pixel unit are closer to being equal, for example, the planar figure of one pixel unit is closer to being square, which is beneficial to improving the uniformity of color display of the entire display panel, thereby improving the display effect. Under this arrangement condition, when the distance between the centers of the light-emitting regions of any two adjacent sub-pixels in the plurality of sub-pixels is substantially equal, the distance between the sub-isolation structures 40 of the any two adjacent sub-pixels in the plurality of sub-pixels is equal to each other; when the distance between the centers of the light-emitting regions of the two adjacent sub-pixels in the plurality of sub-pixels is not equal, the distance between the sub-isolation structures 40 of the two adjacent sub-pixels is not equal, so as to better adapt to the spacing between the adjacent sub-pixels in the arrangement of the pixels shown in FIG. 6 to design each sub-isolation structure.

[0187] For example, the arrangement of pixels shown in FIG. 6 is more applicable to large-size display panels, such as display panels of 50 inches or more, or to products with low resolution, such as watches.

[0188] For example, in any of the embodiments shown in FIGS. 3-6, the center of the light-emitting region of a sub-pixel and the center of the planar shape of the second opening of the sub-isolation structure of the sub-pixel, which exposes the light-emitting region, substantially coincide in a direction perpendicular to the main surface of the substrate 11, so that each sub-isolation structure is arranged in adaptation to the arrangement of each sub-pixel, which is conducive to reasonably utilizing the limited space to set each sub-isolation structure for providing different second electrical signals, and improving PPI.

[0189] For example, the range of the lowest resolution (Pixel Per Inch, PPI) of the display substrate 100 is 400-800, 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. 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 process of manufacturing the sub-isolation structure at present, and the distance between the sub-isolation structures 40 of two adjacent sub-pixels cannot be too large in consideration of the size of the reserved space for setting the sub-isolation structure under a relatively high PPI. Of course, the resolution of the display substrate 100 is not limited to the above range, and the range of the lowest resolution of the display substrate is only exemplary.

[0190] For example, referring to FIG. 3, the plurality of second sub-isolation structures are electrically connected to each other by the first connection structure C1, and the first connection structure C1 is disposed in the same layer as the second sub-isolation structure 40b and constitutes a continuous and integral 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.

[0191] For example, each first sub-connection structure C11 is in the shape of a strip extending in the row direction, and each second sub-connection structure C12 is in the shape of a strip extending in the column direction.

[0192] In other embodiments, the first connection structure C1 only includes a plurality of first sub-connection structures C11 connecting two adjacent second sub-isolation structures 40b in the same row of sub-pixels, or the first connection structure C1 only includes a plurality of second sub-connection structures C12 connecting two adjacent second sub-isolation structures 40b in the same column of sub-pixels.

[0193] For example, the plurality of first sub-isolation structures 40a are electrically connected to each other through a second connecting structure (not shown in the figure), which is disposed in a layer different from the first sub-isolation structures 40a; and the plurality of third sub-isolation structures 40c are electrically connected to each other through a third connecting structure (not shown in the figure), which is disposed in a layer different from the third sub-isolation structures 40c.

[0194] For example, the second connecting structure and the third connecting structure are located on the side of the isolation structure 40 close to the substrate 11. For example, the second connecting structure and the third connecting structure can be disposed in the same layer, for example, the second connecting structure and the third connecting structure are disposed in the same layer as the first electrode 31. Alternatively, in some embodiments, the first electrode 31 is connected to the pixel driving circuit 13 shown in FIG. 1 through a transfer electrode, and the second connecting structure and the third connecting structure can also be disposed in the same layer as the transfer electrode.

[0195] In other embodiments, the second connecting structure and the third connecting structure can also be disposed in different layers.

[0196] For example, the light-emitting layer 50 can further include at least one light-emitting functional layer FL. The light-emitting functional layer FL can be a hole injection layer (HIL), a hole transport layer (HTL), an electron blocking layer (EBL), a hole blocking layer (HBL), an electron transport layer (ETL), or an electron injection layer (EIL).

[0197] FIG. 7A is an enlarged schematic view of a portion L in FIG. 2; and FIG. 7B is a structural schematic view of a sub-light-emitting layer. Referring to FIG. 7A, in the case where 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 sub-layer 51. In the case where the light-emitting layer 50 includes a hole blocking layer (not shown in the figure), 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 sub-layer 51 and the second electrode layer 60.

[0198] For example, referring to FIG. 2 and FIG. 6, the light-emitting layer includes a portion of non-light-emitting part 502 which is disconnected from the plurality of sub-light-emitting layers 501 located in the light-emitting area of the plurality of sub-pixels. The sub-light-emitting layer 501 is located at least in each first opening 21, which is the actual light-emitting part; the non-light-emitting part 502 is located on the side of the isolation structure 40 away from the back plate 10, which does not emit light during the operation of the display substrate.

[0199] A first sub-light-emitting layer 501a is arranged corresponding to the above-mentioned first sub-opening 211 and in contact with the anode corresponding to the first sub-opening 211. A second sub-light-emitting layer 501b is arranged corresponding to a second sub-opening 212 and in contact with the anode corresponding to the second sub-opening 212. A third sub-light-emitting layer 501c is arranged corresponding to a third sub-opening 213 and in contact with the anode corresponding to the third sub-opening 213.

[0200] For example, the sub-light-emitting layer 501 is located in each first opening 21. Specifically, a first sub-light-emitting layer 501a is located in a first sub-opening 211, a second sub-light-emitting layer 501b is located in a second sub-opening 212, and a third sub-light-emitting layer 501c is located in a third sub-opening 213.

[0201] For another example, referring to FIG. 2, a part of the sub-light-emitting layer 501 is located in 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 on the pixel defining layer 20. Specifically, a first sub-light-emitting layer 501a extends from the first sub-opening 211 along the sidewall of the first sub-opening 211 to the pixel defining layer 20. A second sub-light-emitting layer 501b extends from the second sub-opening 212 along the sidewall of the second sub-opening 212 to the pixel defining layer 20. A third sub-light-emitting layer 501c extends from the third sub-opening 213 along the sidewall of the third sub-opening 213 to the pixel defining layer 20.

[0202] For example, the part of the sub-light-emitting layer 501 located in the first opening 21 is in contact with the part of the anode 31 exposed through the first opening 21, so as to receive the electrical signal transmitted by the anode 31.

[0203] For example, the top view shape of the non-light-emitting part 502 can be approximately a mesh structure. Along the thickness direction of the back plate 10, a first opening 21 is arranged corresponding to a second opening 41, and each first sub-light-emitting layer 501a, each second sub-light-emitting layer 501b, and each third sub-light-emitting layer 501c are arranged corresponding to each second opening 41.

[0204] Each first sub-light emitting layer 501a is discontinuously arranged with the part of the non-light emitting portion 502 adjacent thereto, each second sub-light emitting layer 501b is discontinuously arranged with the part of the non-light emitting portion 502 adjacent thereto, and each third sub-light emitting layer 501c is discontinuously arranged with the part of the non-light emitting portion 502 adjacent thereto. Each non-light emitting portion 502 does not emit light.

[0205] For example, referring to FIG. 2, the second electrode 60 further comprises a second portion 602 discontinuously arranged with the first portion 601 of the second electrode 60, and the second portion 602 of the second electrode 60 is located on the side of the isolation structure 40 away from the substrate 11.

[0206] A part of the first portion 601 of the second electrode 60 is located in the region corresponding to the second opening 41, and another part of the first portion 601 of the second electrode 60 is in contact with the isolation structure 40. The second portion 602 of the second electrode 60 is located on the side of the non-light emitting portion 502 away from the isolation structure 40.

[0207] For example, the first portion 601 of the second electrode 60 comprises 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.

[0208] The first sub-electrode layers 601a, the second sub-electrode layers 601b, and the third sub-electrode layers 601c are discontinuously arranged and not electrically connected with each other. For example, each first sub-electrode layer 601a can be continuous and uninterrupted. Each second sub-electrode layer 601b can be continuous and uninterrupted. Each third sub-electrode layer 601c can be continuous and uninterrupted.

[0209] One first sub-electrode layer 601a is arranged corresponding to one first sub-opening 211 and in contact with the first sub-light emitting layer 501a. One second sub-electrode layer 601b is arranged corresponding to one second sub-opening 212 and in contact with the second sub-light emitting layer 501b. One third sub-electrode layer 601c is arranged corresponding to one third sub-opening 213 and in contact with the third sub-light emitting layer 501c.

[0210] The second portion 602 of the second electrode 60 can have a top view shape approximately in the form of a mesh structure, and the mesh holes of the mesh structure are arranged corresponding to the plurality of second openings 41. Each first sub-electrode layer 601a, each second sub-electrode layer 601b, and each third sub-electrode layer 601c are arranged corresponding to each second opening 41 (or each first opening 21).

[0211] Each first sub-electrode layer 601a is discontinuously arranged between the first part 601 of the second electrode 60 and the second part 602 of the second electrode 60 adjacent to the first sub-electrode layer 601a, and is in contact with the sub-isolation structure adjacent to the first sub-electrode layer 601a for electrical connection. Each second sub-electrode layer 601b is discontinuously arranged between the first part 601 of the second electrode 60 and the second part 602 of the second electrode 60 adjacent to the second sub-electrode layer 601b, and is in contact with the sub-isolation structure adjacent to the second sub-electrode layer 601b for electrical connection. Each third sub-electrode layer 601c is discontinuously arranged between the first part 601 of the second electrode 60 and the second part 602 of the second electrode 60 adjacent to the third sub-electrode layer 601c, and is in contact with the sub-isolation structure adjacent to the third sub-electrode layer 601c for electrical connection.

[0212] In this way, 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, and the connection between the first part 601 of the second electrode 60 of the sub-pixels of the same color is achieved.

[0213] Referring to FIGS. 2 and 7A, in the plurality of sub-isolation structures, each of at least part of the sub-isolation structures includes a main body part 401 and an upper part 402, the upper part 402 is located on a side of the main body part 401 away from the substrate 11, and a normal projection of the main body part 401 on the substrate 11 is located within a 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 sidewall of the main body part 401 to achieve electrical connection between the first part 601 of the second electrode 60 and the sub-isolation structure.

[0214] For example, referring to FIG. 7A, in each of at least part of the plurality of 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, and the first part 601 of the second electrode 60 includes a filling part 601f filled in the gap G, the filling part 601f isolates 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. In this way, the display effect of the display substrate 100 can be improved, the sub-light-emitting layer 501 can be prevented from being overlapped on the sub-isolation structure, the sub-light-emitting layer can be prevented from being overlapped on the main body part 401, and 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) can be prevented from being large, thereby preventing the distance between two adjacent light-emitting devices from being small and preventing light emitted by the two adjacent light-emitting devices from being crosstalk.

[0215] For example, for a sub-pixel, the sub-isolation structure surrounds the entire light-emitting area, that is, the planar pattern of the second opening is a closed pattern.

[0216] For example, the filling part 601f is in direct contact with the sidewall of the main body part 401 to be electrically connected with the main body part 401.

[0217] FIG. 8 is a structural schematic diagram of another display substrate provided by an embodiment of the present disclosure. Referring to FIG. 8, for example, the light emitting devices of the display substrate 100 can also be in series, i.e., the light emitting devices include a plurality of light emitting devices in series.

[0218] For example, FIG. 1 shows three light emitting devices, which are a first light emitting device 1101, a second light emitting device 1102, and a third light emitting device 1103, respectively. The light emitting devices located at least partially in the first sub-opening 211, the second sub-opening 212, and the third sub-opening 213 of the three sub-pixels shown in FIG. 2, respectively, can also be the first light emitting device 1101, the second light emitting device 1102, and the third light emitting device 1103 shown in FIG. 8, respectively. FIG. 8 only schematically represents the positional relationship of 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.

[0219] For example, as shown in FIG. 8, the first light emitting device 1101 and the second light emitting device 1102 each include a first electrode 31, a second electrode 60 (for example, a first part 601 of the second electrode 60 is shown in FIG. 8), 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 adjacently arranged and configured to emit light of different colors. In order to facilitate the description of the first light emitting device 1101 and the second light emitting device 1102, FIG. 8 schematically shows 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 this is not a limitation of the embodiments of the present disclosure.

[0220] As shown in FIG. 8, 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.

[0221] For example, the first adjustment layer can be at least one of an electron blocking layer or a hole transport layer. For example, the second adjustment layer can be at least one of an electron blocking layer or a hole transport layer.

[0222] For example, the first light emitting device emits light with a wavelength greater than the wavelength of light emitted by the second light emitting device. For example, the first light emitting device can be a red light emitting device, and the second light emitting device can be a green light emitting device. For example, the first light emitting device can be a red light emitting device, and the second light emitting device can be a blue light emitting device. For example, the first light emitting device can be a green light emitting device, and the second light emitting device can be a blue light emitting device.

[0223] It should be noted that the first light emitting device and the second light emitting device are arranged adjacent to each other, which means that no other light emitting device is included between the first light emitting device and the second light emitting device. The first light emitting device and the second light emitting device can include a film layer or a structure that functions as an isolation.

[0224] In some examples, as shown in FIG. 8, 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, 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 third light emitting device 1103 are configured to emit light of the same color.

[0225] 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 arranged 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.

[0226] As shown in FIG. 8, 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 closer 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 away from the first electrode 31 than the first hole blocking layer 1125. For example, the first adjustment layer is also referred to as a first electron blocking layer.

[0227] For example, the thicknesses of the hole injection layers of the plurality of light emitting devices are equal. For example, the thicknesses of the first hole transport layers of the plurality of light emitting devices are equal. For example, the thicknesses of the first hole blocking layers of the plurality of light emitting devices are equal. For example, the thicknesses of the first electron transport layers of the plurality of light emitting devices are equal.

[0228] In some examples, as shown in FIG. 1, the charge generation layer 113 includes a p-type charge generation layer 1132 and an n-type charge generation layer 1131 which are arranged in a stack, 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 thicknesses of the p-type charge generation layers 1132 of the plurality of light emitting devices 110 are equal. For example, the thicknesses of the n-type charge generation layers 1131 of the plurality of light emitting devices 110 are equal.

[0229] In some examples, as shown in FIG. 1, 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 second light emitting layer 1143 close to the second electrode 60. For example, the second adjustment layer is also referred to as a second electron blocking layer.

[0230] FIG. 9 is a cross-sectional schematic view of a partial structure of another display substrate according to an embodiment of the present disclosure; and FIG. 10 is an enlarged schematic view of the partial L in FIG. 9. The display substrate shown in FIGS. 9-10 is different from the display substrate shown in FIGS. 2 and 7A in the following aspects.

[0231] For example, each of the at least partial sub-isolation structures further includes a lower portion 403 located on the side of the main body portion 401 close to the substrate 11, and the orthographic projection of the main body portion 401 on the substrate 11 is located within the projection of the lower portion 403 on the substrate 11; the lower portion 403 is conductive and is applied with the second electrical signal, and the lower portion 403 has an upper surface facing away from the substrate 11 and a side surface intersecting the upper surface; the 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 sub-isolation structure both the side wall of the main body portion 401 and the upper surface of the lower portion 403; and the filling portion 601f in the gap G is in direct contact with the sub-isolation structure both the side surface of the lower portion 403 and the pixel definition layer 20, so as to realize the electrical connection between the first portion 601 of the second electrode 60 and the adjacent sub-isolation structure, and avoid the electrochemical corrosion of the sub-isolation structure at the contact position.

[0232] For example, in an embodiment, the shape of the cross section of the main body portion 401 along the direction perpendicular to the main surface of the substrate 11 is trapezoidal (as shown in FIG. 7A) or rectangular (as shown in FIG. 10), and of course, is not limited to these two shapes.

[0233] For example, referring to FIG10, the orthographic projection of the main body 401 on the substrate 11 is located within the projection of the upper part 402 on the substrate 11, and the orthographic projection of the main body 401 on the substrate 11 is located within the projection of the lower part 403 on the substrate 11. Thus, the cross-sectional shape of the entire sub-isolation structure composed of the main body 401, the upper part 402 and the lower part 403 can be approximately "I" shaped, thereby reducing the difficulty of the first part 601 of the second electrode 60 contacting the main body 401, ensuring effective connection between the parts of the first part 601 of the second electrode 60 that correspond to different first openings 21, which is beneficial to improving the display uniformity of the display substrate 100.

[0234] Other unmentioned features and corresponding technical effects of the embodiments shown in Figures 9-10, including pixel arrangement and the setting of corresponding sub-isolation structures, are the same as those shown in Figures 2, 3-6 above.

[0235] For example, the isolation structure 40 includes a conductive material, the reactivity of which 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 metallic material, including at least one of aluminum, copper, silver, titanium, and molybdenum. For example, the material of the second electrode 60 also includes a metallic material, such as at least one of aluminum, silver, and magnesium. Alternatively, the material of the second electrode 60 may also include an alloy material. In short, the metallic material of the isolation structure 40 should be less reactive than that of the metallic material of the second electrode 60.

[0236] Here, "metallic reactivity" refers to the ability of the atoms of a metallic element to lose electrons. In the periodic table, metallic properties are stronger towards the lower left and weaker towards the upper right. For example, copper is less reactive than magnesium.

[0237] For example, the material of anode 31 can be an oxide, such as ITO (Indium Tin Oxide), IZO (Indium Zinc Oxide), etc. The material of 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.

[0238] FIG. 11 is a schematic diagram of a display device according to an embodiment of the present disclosure. Referring to FIG. 11, the display device 1000 according to at least one of the embodiments of the present disclosure includes any one of the display substrates 100 according to the embodiments of the present disclosure. The display device 1000 can be, for example, a display panel, a display, an OLED panel, an OLED television, electronic paper, a mobile phone, a tablet computer, a notebook computer, a digital photo frame, a navigation device, or any product or component having a display function. Of course, the display device according to the embodiments of the present disclosure is not limited to the above-mentioned types.

[0239] Accordingly, the display panel and the display device according to the embodiments of the present disclosure have the technical effects of the pixel circuit and the display substrate according to the embodiments of the present disclosure.

[0240] The following points should also be noted:

[0241] (1) The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures can be referred to general designs.

[0242] (2) In the drawings used to describe the embodiments of the present disclosure, the thicknesses of layers or regions are exaggerated or reduced, for clarity, i.e., the drawings are not drawn according to the actual scale.

[0243] (3) In the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined to obtain new embodiments.

[0244] The above merely describes exemplary embodiments of the present disclosure, but is not intended to limit the protection scope of the present disclosure, which is defined by the appended claims.

Claims

1. A display substrate, 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 the first openings expose at least part of the first electrode; 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 footprint of one of the first openings on the main surface of the substrate is within a footprint of one of the second openings on the substrate; and a second electrode comprising a first portion at least partially located in the second openings, wherein the first portion of the second electrode is applied with a second electrical signal; the isolation structure comprises a plurality of sub-isolation structures, the plurality of sub-isolation structures comprise a first sub-isolation structure and a second sub-isolation structure spaced apart and disconnected from each other; the first portion of the second electrode comprises a first sub-electrode and a second sub-electrode located in different ones of the second openings respectively and 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 of claim 1, wherein, the second electrical signal comprises 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 first sub-signal and the second sub-signal have different values. 3.The display substrate of claim 2, wherein, 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. 4.The display substrate according to claim 2 or 3, wherein, the isolation structure further comprises a third sub-isolation structure, 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 comprises a third sub-signal, the third sub-isolation structure is applied with the third sub-signal, the first sub-signal, the second sub-signal and the third sub-signal have different values from each other, and 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 comprises 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 of claim 4, wherein the display substrate comprises a plurality of sub-pixels arranged in an array, the plurality of sub-pixels comprise 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 located in the first sub-pixel, the second sub-pixel and the third sub-pixel respectively. 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 located at least partially in the first sub-opening; the second sub-pixel includes a second light-emitting region located at least partially in the second sub-opening; and the third sub-pixel includes a third light-emitting region located at least partially in the third sub-opening. 6.The display substrate of claim 5, wherein, The first sub-pixel emits light of a first color, the second sub-pixel emits light of a second color, and the third sub-pixel emits light of a third color, the first color, the second color and the third color being different from each other. 7.The display substrate according to claim 5 or 6, wherein The interval between the first sub-isolation structure and the second sub-isolation structure adjacent to each other is a first interval, the interval between the first sub-isolation structure and the third sub-isolation structure adjacent to each other is a second interval, and the interval between the second sub-isolation structure and the third sub-isolation structure adjacent to each other is a third interval. At least two of the lateral distance of the first interval, the lateral distance of the second interval and the lateral distance of the third interval are different in the same plane parallel to the main surface of the substrate, the lateral direction being parallel to the main surface of the substrate. 8.The display substrate of claim 7, wherein, The display substrate includes a pixel array, the 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; the plurality of sub-pixels constitute a plurality of pixel units, the pixel array including the plurality of pixel units arranged in an array, at least one pixel unit including one second sub-pixel, two first sub-pixels respectively located on both sides of the one second sub-pixel in a first direction, and two third sub-pixels respectively located on both sides of the one second sub-pixel in a second direction; The two first sub-pixels are a first sub-pixel No. 1 and a first sub-pixel No. 2, and the two third sub-pixels are a third sub-pixel No. 1 and a third sub-pixel No. 2, the first sub-pixel No. 1 and the third sub-pixel No. 2 are arranged in a row direction, the first sub-pixel No. 2 and the third sub-pixel No. 2 are arranged in a column direction, the row direction and the column direction are perpendicular to each other and intersect the first direction and the second direction; 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 one second sub-pixel is less than the distance between the center of the first light-emitting region of the second sub-pixel No. 1 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 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 second sub-pixel No. 2 and the center of the third light-emitting region of the third sub-pixel No. 1; The pixel array comprises four second sub-pixels surrounding and adjacent to the first sub-pixel No. 1, which are second sub-pixel No. 1, second sub-pixel No. 2, second sub-pixel No. 3 and second sub-pixel No. 4 arranged in turn in an anticlockwise direction respectively; 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 area of the second sub-pixel No. 1 and the center of the first light-emitting area of the first sub-pixel No. 1 is equal to the distance between the center of the second light-emitting area of the second sub-pixel No. 4 and the center of the first light-emitting area of the first sub-pixel No. 1, the distance between the center of the second light-emitting area of the second sub-pixel No. 2 and the center of the first light-emitting area of the first sub-pixel No. 1 is equal to the distance between the center of the second light-emitting area of the second sub-pixel No. 3 and the center of the first light-emitting area of the first sub-pixel No. 1, and the distance between the center of the second light-emitting area of the second sub-pixel No. 1 and the center of the first light-emitting area of the first sub-pixel No. 1 is greater than the distance between the center of the second light-emitting area of the second sub-pixel No. 2 and the center of the first light-emitting area of the first sub-pixel No.

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

1. 10.The display substrate according to claim 8 or 9, wherein Each of at least part of the plurality of sub-pixels comprises a corresponding sub-isolation structure and a second opening respectively; 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 one second sub-pixel is less 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 one 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 second sub-pixel No. 2 is less 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.

1. The distance between the center of the second opening of the 1st second sub-pixel and the center of the second opening of the 1st first sub-pixel is equal to the distance between the center of the second opening of the 4th second sub-pixel and the center of the second opening of the 1st first sub-pixel, the distance between the center of the second opening of the 2nd second sub-pixel and the center of the second opening of the 1st first sub-pixel is equal to the distance between the center of the second opening of the 3rd second sub-pixel and the center of the second opening of the 1st first sub-pixel, and the distance between the center of the second opening of the 1st second sub-pixel and the center of the second opening of the 1st first sub-pixel is greater than the distance between the center of the second opening of the 2nd second sub-pixel and the center of the second opening of the 1st first sub-pixel. 11.The display substrate of any one of claims 8-10, wherein, The distance between the second sub-isolation structure of the 1st second sub-pixel and the first sub-isolation structure of the 1st first sub-pixel in the second direction is L1, the distance between the second sub-isolation structure of the 4th second sub-pixel and the first sub-isolation structure of the 1st first sub-pixel in the first direction is L4, the distance between the second sub-isolation structure of the 2nd second sub-pixel and the first sub-isolation structure of the 1st first sub-pixel in the first direction is L2, the distance between the second sub-isolation structure of the 3rd second sub-pixel and the first sub-isolation structure of the 1st first sub-pixel in the second direction is L3, and L1=L4>L2=L3. 12.The display substrate according to any one of claims 8-11, wherein, The pixel array comprises four third sub-pixels surrounding and adjacent to the 1st first sub-pixel, which are the 1st third sub-pixel, the 2nd third sub-pixel, the 3rd third sub-pixel and the 4th third sub-pixel arranged in turn in a counterclockwise direction; the 1st third sub-pixel, the 1st first sub-pixel and the 3rd third sub-pixel are arranged in the row direction in turn, and the 4th third sub-pixel, the 1st first sub-pixel and the 2nd third sub-pixel are arranged in the column direction in turn. The distance between the first sub-isolation structure of the 1st first sub-pixel and the third sub-isolation structure of the 4th third sub-pixel is L5, the distance between the first sub-isolation structure of the 1st first sub-pixel and the third sub-isolation structure of the 2nd third sub-pixel is L6, the distance between the first sub-isolation structure of the 1st first sub-pixel and the third sub-isolation structure of the 3rd third sub-pixel is L7, and the distance between the first sub-isolation structure of the 1st first sub-pixel and the third sub-isolation structure of the 1st third sub-pixel is L8, and L5>L6>L7=L8. 13.The display substrate of any one of claims 8-12, wherein, The pixel array comprises a plurality of rows of sub-pixels extending in the row direction and a plurality of columns of sub-pixels extending in the column direction, The first ends of the second light-emitting areas of the plurality of second sub-pixels in the same row extending in the row direction are on the same straight line in the column direction, and the second ends of the second light-emitting areas of the plurality of second sub-pixels in the same row extending in the row direction, which are opposite to the first ends, are also on the same straight line in the column direction. The distance between the centers of the second sub-pixels in each column in two adjacent rows is equal; The center of the first light-emitting area of the first sub-pixel and the center of the third light-emitting area 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 center of the first light-emitting area of the first sub-pixel and the center of the third light-emitting area 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 of claim 13, wherein, The first ends of the second openings of the second sub-pixels in the same row extending along the row direction are on the same straight line extending along the row direction, and the second ends of the second openings of the second sub-pixels in the same row extending along the row direction are on the same straight line extending along the row direction. The distance between the centers of the second sub-pixels in each column in two adjacent rows is equal; The center of the second opening of the first sub-pixel and the center of the second opening 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 center of the second opening of the first sub-pixel and the center of the second opening 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.

15. The display substrate according to any one of claims 8-12, wherein, For the second sub-pixels in the same row extending along the row direction, the two ends of the second light-emitting area of the second sub-pixel in an odd-numbered column in the column direction are aligned with each other, and the two ends of the second light-emitting area of the second sub-pixel in an even-numbered column in the column direction are aligned with each other; For the second sub-pixels in the same row extending along the row direction, the first ends of the second light-emitting area of two adjacent second sub-pixels in the column direction are not aligned with each other, and the second ends of the second light-emitting area of two adjacent second sub-pixels in the column direction are not aligned with each other; For two adjacent rows of the second sub-pixels extending along the row direction, the distance between the centers of the second light-emitting area of two adjacent second sub-pixels in adjacent columns in the column direction is not equal. 16.The display substrate of claim 15, wherein, For the second sub-pixels in the same row extending along the row direction, the two ends of the second opening of the second sub-pixel in an odd-numbered column in the column direction are aligned with each other, and the two ends of the second opening of the second sub-pixel in an even-numbered column in the column direction are aligned with each other; For two adjacent rows of the second sub-pixels extending along the row direction, the distance between the centers of the second opening of two adjacent second sub-pixels in adjacent columns in the column direction is not equal. 17.The display substrate of 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 any one of claims 15-17, wherein, The second sub-pixels in the same column include three second sub-pixels arranged in sequence, and the distance between the center of the light-emitting area of the first second sub-pixel and the center of the light-emitting area of the second second sub-pixel in the column direction is less than the distance between the center of the light-emitting area of the second second sub-pixel and the center of the light-emitting area of the third second sub-pixel in the column direction; The distance between the second sub-isolation structure of the first second sub-pixel and the second sub-isolation structure of the second second sub-pixel in the column direction is less than the distance between the second sub-isolation structure of the second second sub-pixel and the second sub-isolation structure of the third second sub-pixel in the column direction.

19. The display substrate of any one of claims 15-18, 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 arranged in the first direction and adjacent to each other in the first direction is not equal to the distance between the second sub-isolation structures of two second sub-pixels arranged in the row direction and adjacent to each other in the row direction.

20. The display substrate of any one of claims 15-19, 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 arranged in the first direction and 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 arranged in the second direction and adjacent to each other in the first direction.

21. The display substrate of claim 5 or 6, 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 second sub-pixel, two first sub-pixels respectively located on two sides of the one second sub-pixel in a first direction, and two 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 first first sub-pixel and a second first sub-pixel, and the two third sub-pixels are a first third sub-pixel and a second third sub-pixel, the first first sub-pixel and the second third sub-pixel are arranged in a row direction, the second first sub-pixel and the second third sub-pixel are arranged in a column direction, the row direction and the column direction are perpendicular to each other and intersect with the first direction and the second direction; The distance between the center of the first light-emitting area of the first first sub-pixel and the center of the second light-emitting area of the one second sub-pixel is equal to the distance between the center of the first light-emitting area of the second first sub-pixel and the center of the second light-emitting area of the one second sub-pixel, the distance between the center of the first light-emitting area of the first first sub-pixel and the center of the second light-emitting area of the second third sub-pixel is equal to the distance between the center of the first light-emitting area of the second first sub-pixel and the center of the third light-emitting area of the first third sub-pixel, and the distance between the center of the first light-emitting area of the first first sub-pixel and the center of the second light-emitting area of the first third sub-pixel is equal to the distance between the center of the first light-emitting area of the second first sub-pixel and the center of the third light-emitting area of the second third sub-pixel. The pixel array comprises four second sub-pixels surrounding and adjacent to the first sub-pixel No. 1, which are second sub-pixel No. 1, second sub-pixel No. 2, second sub-pixel No. 3 and second sub-pixel No. 4 arranged in sequence in an anticlockwise direction respectively; 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 area of the second sub-pixel No. 1 and the center of the first light-emitting area of the first sub-pixel No. 1, the distance between the center of the second light-emitting area of the second sub-pixel No. 2 and the center of the first light-emitting area of the first sub-pixel No. 1, the distance between the center of the second light-emitting area of the second sub-pixel No. 3 and the center of the first light-emitting area of the first sub-pixel No. 1, and the distance between the center of the second light-emitting area of the second sub-pixel No. 4 and the center of the first light-emitting area of the first sub-pixel No. 1 are equal; The distance between the sub-isolation structures of any two adjacent sub-pixels in the plurality of sub-pixels is equal to each other.

22. The display substrate of claim 21, wherein, The distance between the center of the second opening of the first sub-pixel No. 1 and the center of the second light-emitting area of the one second sub-pixel is equal to 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 one second sub-pixel, 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 second sub-pixel No. 3 is equal to 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, 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 second sub-pixel No. 3 is equal to 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 first sub-pixel No. 1 and the center of the second opening of the second 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 equal.

23. The display substrate of claim 5 or 6, wherein, The display substrate comprises a pixel array, the pixel array comprises a plurality of rows of sub-pixels extending in a row direction and a plurality of columns of sub-pixels extending in a column direction, and the plurality of columns of sub-pixels comprise 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 located in the first column of sub-pixels and adjacent to each other, and one third sub-pixel located in the second column of sub-pixels constitute a pixel unit, and the pixel array comprises a plurality of pixel units arranged in an array. In one of the pixel units, the normal projection of the first sub-pixel and the second sub-pixel on a reference plane perpendicular to the row direction at least partially overlaps with the normal projection of the third sub-pixel on the reference plane; The distance between the sub-isolation structures of any two adjacent sub-pixels in the plurality of sub-pixels is equal or unequal to each other.

24. The display substrate of any one of claims 8-20, wherein, In one of the pixel units, a figure formed by sequentially connecting the center of the first light-emitting region of the two first sub-pixels and the center of the third light-emitting region of the two third sub-pixels along a direction surrounding one of the second sub-pixels is a first trapezoid, and the intersection of two diagonal lines of the first trapezoid is located within the range of the second light-emitting region of the second sub-pixel being surrounded. 25.The display substrate of claim 24, wherein, The first trapezoid is an isosceles trapezoid. 26.The display substrate of claim 25, wherein, The upper base and the lower base of the first trapezoid respectively extend along the row direction, the line connecting 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 constitutes the upper base of the first trapezoid, and the line connecting the center of the third light-emitting region of the third sub-pixel No. 1 and the center of the first light-emitting region of the first sub-pixel No. 2 constitutes the lower base of the first trapezoid.

27. The display substrate of any of claims 24-26, wherein, In one of the pixel units, a figure formed by sequentially connecting the center of the second opening of the two first sub-pixels and the center of the second opening of the two third sub-pixels along a direction surrounding one of the second sub-pixels is a third trapezoid, and the intersection of two diagonal lines of the third trapezoid is located within the range of the second opening of the second sub-pixel being surrounded. 28.The display substrate of claim 27, wherein, The third trapezoid is an isosceles trapezoid; the upper base and the lower base of the third trapezoid respectively extend along the row direction, the line connecting 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 constitutes the upper base of the third trapezoid, and the line connecting the center of the second opening of the third sub-pixel No. 1 and the center of the second opening of the first sub-pixel No. 2 constitutes the lower base of the third trapezoid. 29.The display substrate according to any one of claims 8-20 and 24-28, wherein, A figure formed by sequentially connecting the center of the second light-emitting region of the second sub-pixel No. 1, the center of the second light-emitting region of the second sub-pixel No. 2, the center of the second light-emitting region of the second sub-pixel No. 3, and the center of the second light-emitting region of the second sub-pixel No. 4 is a second trapezoid, and the intersection of two diagonal lines of the second trapezoid is located within the range of the first light-emitting region of the first sub-pixel. 30.The display substrate of claim 29, wherein, The second trapezoid is an isosceles trapezoid, the upper base and the lower base of the second trapezoid respectively extend along the row direction, the line connecting the center of the second light-emitting region of the second sub-pixel No. 1 and the center of the second light-emitting region of the second sub-pixel No. 2 constitutes the upper base of the second trapezoid, and the line connecting the center of the second light-emitting region of the second sub-pixel No. 3 and the center of the second light-emitting region of the second sub-pixel No. 4 constitutes the lower base of the second trapezoid. 31.The display substrate of claim 29 or 30, wherein, A figure formed by connecting the center of the second opening of the first second sub-pixel, the center of the second opening of the second second sub-pixel, the center of the second opening of the third second sub-pixel and the center of the second opening of the fourth second sub-pixel P2 in sequence is a fourth trapezoid, and the intersection of the two diagonal lines of the fourth trapezoid is located in the range of the second opening of the first first sub-pixel. 32.The display substrate of claim 31, wherein, The fourth trapezoid is an isosceles trapezoid, the upper base and the lower base of the fourth trapezoid respectively extend along the row direction, the line connecting the center of the second opening of the first second sub-pixel and the center of the second opening of the second second sub-pixel constitutes the upper base of the fourth trapezoid, and the line connecting the center of the second opening of the third second sub-pixel and the center of the second opening of the fourth second sub-pixel constitutes the lower base of the fourth trapezoid.

33. The display substrate of any of claims 5-32, wherein, For each of at least part of the sub-pixels in the plurality of sub-pixels, the shape of the orthographic projection of the second opening of the sub-pixel on the main surface of the substrate is the same as the shape of the orthographic projection of the light-emitting region of the sub-pixel on the main surface of the substrate, and the center of the orthographic projection of the second opening of the sub-pixel on the main surface of the substrate substantially coincides with the center of the orthographic projection of the light-emitting region of the sub-pixel on the main surface of the substrate.

34. The display substrate of any one of claims 5-33, wherein, The lowest resolution (Pixel Per Inch, PPI) of the display substrate ranges from 400 to 800, and the distance between the sub-isolation structures 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. 35.The display substrate according to any one of claims 4-34, wherein A plurality of the second sub-isolation structures are electrically connected to each other through first connection structures, the first connection structures are disposed in the same layer as the second sub-isolation structures and constitute a continuous integrated structure; A plurality of the first sub-isolation structures are electrically connected to each other through second connection structures, the second connection structures are disposed in different layers from the first sub-isolation structures; A plurality of the third sub-isolation structures are electrically connected to each other through third connection structures, the third connection structures are disposed in different layers from the third sub-isolation structures. 36.The display substrate of 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 of 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 or 37, wherein The first sub-connection structure is in the shape of a strip extending along the row direction, and the second sub-isolation structure is in the shape of a strip extending along the column direction.

39. The display substrate of any of claims 35-38, 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 1-39, wherein, For each of at least part 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 orthographic projection of the main body portion on the substrate is located within the orthographic projection of the upper portion on the substrate. The first part of the second electrode is in direct contact with the sidewall of the main body portion. 41.The display substrate of claim 40, wherein, The display substrate includes 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. The isolation structure further includes a third sub-isolation structure, the third sub-isolation structure being spaced apart from 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 area at least partially located in the first sub-opening. The second sub-pixel includes a second light-emitting area at least partially located in the second sub-opening. The third sub-pixel includes a third sub-opening at least partially located in the third sub-opening. The third light-emitting region of the display substrate includes a first sub-pixel emitting light of a first color, a second sub-pixel emitting light of a second color, and a third sub-pixel emitting light of a third color. The first color, the second color, and the third color are different from each other. The display substrate further includes a light-emitting layer comprising a plurality of sub-light-emitting layers. At least a portion of each sub-light-emitting layer is sandwiched between a first portion of the first electrode and a 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 includes 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 the plurality of sub-pixels, at least a portion thereof, there is a gap between the sub-isolation structure and the sub-emitting layer, and a first portion of the second electrode includes a filling portion filling the gap, the filling portion isolating the sub-emitting layer from the sub-isolation structure. 42.The display substrate of claim 41, wherein, The filling portion is in direct contact with the sidewall of the main body. 43.The display substrate of claim 42, wherein, At least some of the sub-isolation structures further include a lower portion located on the side of the main body portion closer to the substrate, wherein the orthographic projection of the main body portion on the substrate lies within the projection of the lower portion on the substrate; The lower portion is conductive and is subjected to the second electrical signal, and the lower portion has an upper surface facing away from the substrate and a side surface intersecting the upper surface; The first part of the second electrode also includes an edge portion covering the upper surface of the lower part, the edge portion being in direct contact with the sidewall of the main body and the upper surface of the lower part, and the filling portion being in direct contact with the side surface of the lower part and the pixel junction layer.

44. The display substrate of any of claims 40-43, wherein, The cross-sectional shape of the main body along the direction perpendicular to the main surface of the substrate is trapezoidal or rectangular; the cross-sectional shape 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 1-44, wherein, The isolation structure includes a conductive material, the conductivity of which is weaker than that of the material of the second electrode. 46.The display substrate of claim 45, wherein, The conductive material is a metal material, and 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.

47. A display substrate, comprising: a pixel array including a plurality of sub-pixels arranged in an array, the plurality of sub-pixels including first sub-pixels, second sub-pixels, and third sub-pixels, wherein the plurality of sub-pixels constitute a plurality of pixel units, and at least one of the pixel units includes one of the second sub-pixels and two of the first sub-pixels and two of the third sub-pixels surrounding the one of the second sub-pixels; in one of the pixel units, centers of first light emitting regions of the two of the first sub-pixels and centers of third light emitting regions of the two of the third sub-pixels are sequentially connected in a direction surrounding the one of the second sub-pixels to form a first trapezoid, and an intersection of two diagonal lines of the first trapezoid is located within a range of a second light emitting region of the surrounded one of the second sub-pixels; the display substrate further comprises: 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 the first openings expose at least part of the first electrode; 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 of claim 47, wherein, The first trapezoid is an isosceles trapezoid. 49.The display substrate of claim 48, wherein, in one of the pixel units, the two of the first sub-pixels are respectively located on two sides of the one of the second sub-pixels in a first direction, and the two of the third sub-pixels are respectively located on two sides of the one of the second sub-pixels in a second direction; the two of the first sub-pixels are a first sub-pixel No. 1 and a first sub-pixel No. 2, and the two of the third sub-pixels are a third sub-pixel No. 1 and a third sub-pixel No. 2, the first sub-pixel No. 1 and the third sub-pixel No. 2 are arranged in a row direction, the second sub-pixel No. 2 and the third sub-pixel No. 1 are arranged in a column direction, the row direction and the column direction are perpendicular to the first direction and the second direction and intersect the first direction and the second direction; upper and lower bases of the first trapezoid respectively extend along the row direction, a line connecting a center of a first light emitting region of the first sub-pixel No. 1 and a center of a third light emitting region of the third sub-pixel No. 2 constitutes the upper base of the first trapezoid, and a line connecting a center of a third light emitting region of the third sub-pixel No. 1 and a center of a first light emitting region of the second sub-pixel No. 2 constitutes the lower base of the first trapezoid. 50.The display substrate of claim 49, wherein, in one of the pixel units, centers of second openings of the two of the first sub-pixels and centers of second openings of the two of the third sub-pixels are sequentially connected in a direction surrounding the one of the second sub-pixels to form a third trapezoid, and an intersection of two diagonal lines of the third trapezoid is located within a range of a second opening of the surrounded one of the second sub-pixels. 51.The display substrate of claim 50, wherein, The third trapezoid is an isosceles trapezoid; the upper base and the lower base of the third trapezoid respectively extend along the row direction, and a line connecting 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 constitutes the upper base of the third trapezoid, and a line connecting 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 constitutes the lower base of the third trapezoid.

52. The display substrate of any one of claims 49-51, wherein, a 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 second sub-pixel is less than a 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 the second sub-pixel, and a 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 a 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 comprises four second sub-pixels surrounding the first sub-pixel No. 1 and 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 turn in an anticlockwise direction respectively; 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; a 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 a 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, a 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 a 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 a 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 a 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 of claim 52, wherein, a distance between the first sub-isolation structure of the first sub-pixel No. 1 and the second sub-isolation structure of the second sub-pixel is less than a distance between the first sub-isolation structure of the first sub-pixel No. 2 and the second sub-isolation structure of the second sub-pixel, and a 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 a 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 or 53, wherein, a normal projection of one first opening on the main surface of the substrate is located within a normal projection range of one second opening on the substrate; Each of the at least part of the plurality of sub-pixels respectively comprises 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 the 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 the 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. 55.The display substrate of any one of claims 52-54, wherein, The display substrate comprises 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 comprises: A second electrode comprising a first part located at least partially in the second opening, wherein the first part of the second electrode is applied with a second electrical signal; The isolation structure comprises a plurality of sub-isolation structures, and the plurality of sub-isolation structures comprise first sub-isolation structures and second sub-isolation structures spaced apart and disconnected from each other; The first part of the second electrode comprises a first sub-electrode and a second sub-electrode located in different second openings respectively and 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 of claim 55, wherein, The second electrical signal comprises 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 of 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 or 57, wherein, The isolation structure further comprises a third sub-isolation structure, and the third sub-isolation structure is spaced apart from the first sub-isolation structure and the second sub-isolation structure. The second electrical signal further comprises 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 comprises a plurality of first sub-isolation structures, a plurality of second sub-isolation structures and a plurality of third sub-isolation structures, the plurality of first sub-isolation structures are electrically connected to each other, the plurality of second sub-isolation structures are electrically connected to each other, and the plurality of third sub-isolation structures are electrically connected to each other. 59.The display substrate of 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 comprises a first sub-opening, a second sub-opening and a third sub-opening; the first light-emitting area of the first sub-pixel is at least partially located in the first sub-opening; The second light-emitting area of the second sub-pixel is at least partially located in the second sub-opening, and the second sub-isolation structure surrounds the second light-emitting area; the third light-emitting area of the third sub-pixel is at least partially located in the third sub-opening, and the third sub-isolation structure surrounds the third light-emitting area. 60.The display substrate of any one of claims 47-59, wherein, The first sub-pixel emits light of a first color, the second sub-pixel emits light of a second color, and the third sub-pixel emits light of a third color, the first color, the second color and the third color being different from each other. 61.The display substrate of claim 58 or 59, wherein, The interval between the first sub-isolation structure and the second sub-isolation structure adjacent to each other is a first interval, the interval between the first sub-isolation structure and the third sub-isolation structure adjacent to each other is a second interval, and the interval between the second sub-isolation structure and the third sub-isolation structure adjacent to each other is a third interval; At least two of the lateral distance of the first interval, the lateral distance of the second interval and the lateral distance of the third interval are different in the same plane parallel to the main surface of the substrate, the lateral direction being parallel to the main surface of the substrate. 62.The display substrate of any one of claims 49-59 and 61, wherein, The distance between the first sub-isolation structure of the first sub-pixel No. 1 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 second sub-pixel No. 1 and the second sub-isolation structure of the one second sub-pixel, and the distance between the first sub-isolation structure of the first sub-pixel No. 1 and the third sub-isolation structure of the second sub-pixel No. 2 is less than the distance between the first sub-isolation structure of the second sub-pixel No. 1 and the third sub-isolation structure of the first sub-pixel No.

1. 63.The display substrate of claim 62, wherein, The pixel array comprises four second sub-pixels surrounding and adjacent to the first sub-pixel No. 1, which are second sub-pixel No. 1, second sub-pixel No. 2, second sub-pixel No. 3 and second sub-pixel No. 4 arranged in sequence in an anticlockwise direction respectively; 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 or 63, wherein The pixel array comprises four third sub-pixels surrounding and adjacent to the first sub-pixel No. 1, which are third sub-pixel No. 1, third sub-pixel No. 2, third sub-pixel No. 3 and third sub-pixel No. 4 arranged in sequence in an anticlockwise direction respectively; the third sub-pixel No. 1, the first sub-pixel No. 1 and the third sub-pixel No. 3 are arranged in the column direction in sequence, and the third sub-pixel No. 4, the first sub-pixel No. 1 and the third sub-pixel No. 2 are arranged in the column direction in sequence; The distance between the center of the first light-emitting area of the first sub-pixel No. 1 and the center of the third light-emitting area of the third sub-pixel No. 4 is L5, the distance between the center of the first light-emitting area of the first sub-pixel No. 1 and the center of the third light-emitting area of the third sub-pixel No. 2 is L6, the distance between the center of the first light-emitting area of the first sub-pixel No. 1 and the center of the third light-emitting area of the third sub-pixel No. 3 is L7, and the distance between the center of the first light-emitting area of the first sub-pixel No. 1 and the center of the third light-emitting area of the third sub-pixel No. 1 is L8, satisfying L5>L6>L7=L8. 65.The display substrate of any one of claims 49-59 and 61-64, wherein, The pixel array comprises a plurality of rows of sub-pixels extending in the row direction and a plurality of columns of sub-pixels extending in the column direction, The first ends of the second light-emitting areas of the plurality of second sub-pixels in the same row extending in the row direction are on the same straight line in the column direction, and the second ends of the second light-emitting areas of the plurality of second sub-pixels in the same row extending in the row direction, which are opposite to the first ends, are on the same straight line in the column direction; In two adjacent rows of second sub-pixels, the distances between the centers of the light-emitting areas of the second sub-pixels in each column are equal; The center of the first light emitting region of the first sub-pixel and the center of the third light emitting region of 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; The center of the first light emitting region of the first sub-pixel and the center of the third light emitting region of 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. 66.The display substrate of claim 65, 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; The first ends of the second openings of the plurality of second sub-pixels located in the same row extending along the row direction are on the same straight line extending along the row direction, and the second ends of the second openings of the plurality of second sub-pixels located in the same row extending along the row direction are on the same straight line extending along the row direction; The distance between the centers of the second openings of the second sub-pixels located in each column in two adjacent rows of second sub-pixels is equal; The center of the second opening of the first sub-pixel and the center of the second opening of 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; The center of the second opening of the first sub-pixel and the center of the second opening of 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. 67.The display substrate of any one of claims 49-59 and 61-66, wherein, The pixel array comprises four second sub-pixels surrounding the first sub-pixel 1 and adjacent to the first sub-pixel 1, which are the second sub-pixel 1, the second sub-pixel 2, the second sub-pixel 3 and the second sub-pixel 4 arranged in sequence in a counterclockwise direction, respectively; the second sub-pixel 4, the first sub-pixel 1 and the second sub-pixel 2 are arranged in the first direction, and the second sub-pixel 1, the first sub-pixel 1 and the second sub-pixel 3 are arranged in the second direction, The centers of the second light emitting regions of the second sub-pixel 1, the second sub-pixel 2, the second sub-pixel 3 and the second sub-pixel 4 are connected in sequence to form a second trapezoid, and the intersection of the two diagonal lines of the second trapezoid is located in the range of the first light emitting region of the first sub-pixel 1. 68.The display substrate of 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, the line connecting the center of the second light emitting region of the second sub-pixel 1 and the center of the second light emitting region of the second sub-pixel 4 constitutes the upper base of the second trapezoid, and the line connecting the center of the second light emitting region of the second sub-pixel 2 and the center of the second light emitting region of the second sub-pixel 3 constitutes the lower base of the second trapezoid. 69.The display substrate of claim 67, wherein, The intersection of the two diagonal lines of the second trapezoid and the center of the first light emitting region of the first sub-pixel 1 are coincident or not coincident. 70.The display substrate of claim 68 or 69, wherein, The centers of the second openings of the 1st, 2nd, 3rd and 4th second sub-pixels are sequentially connected to form a fourth trapezoid, and the intersection of the two diagonal lines of the fourth trapezoid is located in the range of the second opening of the 1st first sub-pixel. 71.The display substrate of claim 70, wherein, The fourth trapezoid is an isosceles trapezoid, the upper base and the lower base of the fourth trapezoid extend along the row direction respectively, 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 constitutes 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 constitutes the lower base of the fourth trapezoid. 72.The display substrate of any one of claims 49-59 and 61-71, wherein, Among the plurality of second sub-pixels located in the same row extending along the row direction, the second light-emitting regions of the plurality of second sub-pixels located in the odd-numbered columns are respectively aligned with each other in the column direction, and the second light-emitting regions of the plurality of second sub-pixels located in the even-numbered columns are respectively aligned with each other in the column direction. For the plurality of second sub-pixels located in the same row, the first ends of the second light-emitting regions of the 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 the two adjacent second sub-pixels are not aligned with each other in the column direction. For the two adjacent rows of second sub-pixels extending along the row direction, the distance between the centers of the second light-emitting regions of the two adjacent second sub-pixels in the adjacent columns in the column direction is not equal. 73.The display substrate of 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 sequence counterclockwise; 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 or 73, wherein Among the plurality of second sub-pixels located in the same row extending along the row direction, the second openings of the plurality of second sub-pixels located in the odd-numbered columns are respectively aligned with each other in the column direction, and the second openings of the plurality of second sub-pixels located in the even-numbered columns are respectively aligned with each other in the column direction. For the two adjacent rows of second sub-pixels extending along the row direction, the distance between the centers of the second openings of the two adjacent second sub-pixels in the adjacent columns in the column direction is not equal. 75.The display substrate of claim 74, wherein, The pixel array comprises four second sub-pixels surrounding and adjacent to the first sub-pixel No. 1, which are second sub-pixel No. 1, second sub-pixel No. 2, second sub-pixel No. 3 and second sub-pixel No. 4 arranged in sequence in an anticlockwise direction respectively; 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 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. 76.The display substrate of any one of claims 72-75, wherein, The second sub-pixels in the same column comprise three second sub-pixels arranged in sequence, and the distance between the center of the light-emitting area of the first second sub-pixel and the center of the light-emitting area of the second second sub-pixel in the column direction is less than the distance between the center of the light-emitting area of the second second sub-pixel and the center of the light-emitting area of the third second sub-pixel in the column direction. The distance between the second sub-isolation structure of the first second sub-pixel and the second sub-isolation structure of the second second sub-pixel in the column direction is less than the distance between the second sub-isolation structure of the second second sub-pixel and the second sub-isolation structure of the third second sub-pixel in the column direction. 77.The display substrate of any one of claims 72-76, 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 arranged in the first direction and adjacent to each other in the first direction is not equal to the distance between the second sub-isolation structures of two second sub-pixels arranged in the row direction and adjacent to each other in the row direction. 78.The display substrate of any one of claims 72-77, 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 arranged in the first direction and 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 arranged in the second direction and adjacent to each other in the first direction. 79.The display substrate of any one of claims 47-78, wherein, For each of at least some of the plurality of sub-pixels, the shape of the orthographic projection of the second opening of the sub-pixel on the main surface of the substrate is the same as the shape of the orthographic projection of the light-emitting area of the sub-pixel on the main surface of the substrate, and the center of the orthographic projection of the second opening of the sub-pixel on the main surface of the substrate substantially coincides with the center of the orthographic projection of the light-emitting area of the sub-pixel on the main surface of the substrate.

80. A display device comprising the display substrate of any one of claims 1-79.

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