CN-224218779-U - Display substrate and display device

Abstract

A display substrate and a display device are provided. The display substrate comprises a substrate and an isolation layer positioned on the substrate. The substrate comprises a display area, wherein the part of the isolation layer, which is positioned in the display area, comprises a plurality of isolation patterns which are arrayed along a first direction and a second direction, each isolation pattern comprises a plurality of isolation sub-patterns, at least a first interval and a second interval which are arrayed along the second direction are arranged between adjacent isolation patterns which are arrayed along the first direction, and the ratio of the width of at least part of the first interval to the width of at least part of the second interval is 0.9-1.1. By setting the width dimensions of the different spaces, anode residues are advantageously avoided.

Inventors

• WANG XU
• LI WEI
• HE WEI
• TANG XIA
• YANG XU
• CUI WEI
• DENG LEI
• YANG WEIQI
• Long Fanlin

Assignees

• 京东方科技集团股份有限公司
• 成都京东方光电科技有限公司

Dates

Publication Date

20260508

Application Date

20250530

Claims (20)

1. 1. A display substrate, comprising: A substrate base including a display region; an isolation layer located on the substrate, The part of the isolation layer, which is positioned in the display area, comprises a plurality of isolation patterns which are arrayed along a first direction and a second direction, each isolation pattern comprises a plurality of isolation sub-patterns, and the first direction is intersected with the second direction; At least a first interval and a second interval arranged along the second direction are arranged between adjacent isolation patterns arranged along the first direction, one of the adjacent isolation patterns at least comprises a first isolation sub-pattern and a second isolation sub-pattern arranged along the second direction, the interval between the first isolation sub-pattern and the other isolation pattern in the adjacent isolation patterns is the first interval, the interval between the second isolation sub-pattern and the other isolation pattern in the adjacent isolation patterns is the second interval, and the ratio between the width of at least part of the first interval and the width of at least part of the second interval is 0.9-1.1.
2. 2. The display substrate according to claim 1, wherein adjacent isolation patterns arranged in the second direction have at least a third interval and a fourth interval arranged in the first direction therebetween, one of the adjacent isolation patterns includes at least a third isolation sub-pattern and a fourth isolation sub-pattern arranged in the first direction, the interval between the third isolation sub-pattern and another one of the adjacent isolation patterns is the third interval, the interval between the fourth isolation sub-pattern and another one of the adjacent isolation patterns is the fourth interval, and a ratio between a width of at least a portion of the third interval and a width of at least a portion of the fourth interval is 0.9 to 1.1.
3. 3. The display substrate of claim 2, wherein at least a portion of an edge of the first isolation sub-pattern is flush with at least a portion of an edge of the second isolation sub-pattern, and at least a portion of an edge of the third isolation sub-pattern is flush with at least a portion of an edge of the fourth isolation sub-pattern.
4. 4. The display substrate of claim 2, wherein a width of the first space, a width of the second space, a width of the third space, and a width of the fourth space are each no less than 1.8 microns and no more than 12 microns.
5. 5. The display substrate according to claim 1, wherein at least two adjacent barrier patterns are independent structures from each other.
6. 6. The display substrate of claim 2, wherein the substrate further comprises a peripheral region surrounding the display region, the spacer layer comprising a first spacer layer located in the display region and a second spacer layer located in the peripheral region, the first spacer layer comprising the plurality of spacer patterns, the second spacer layer surrounding at least a portion of the first spacer layer.
7. 7. The display substrate according to claim 6, wherein a size of the second spacer layer in the first direction is not smaller than a sum of sizes of adjacent two spacer sub-patterns arranged in the first direction, and a size of the second spacer layer in the second direction is not smaller than a sum of sizes of adjacent two spacer sub-patterns arranged in the second direction.
8. 8. The display substrate according to claim 6, wherein the second isolation layer includes a plurality of sub-patterns including at least a first sub-pattern having a shape substantially the same as that of the first isolation sub-pattern, a second sub-pattern having a shape substantially the same as that of the second isolation sub-pattern, and a third sub-pattern having a shape substantially the same as that of an isolation sub-pattern different from the first isolation sub-pattern and the second isolation sub-pattern among the third isolation sub-pattern and the fourth isolation sub-pattern.
9. 9. The display substrate according to any one of claims 1 to 8, further comprising: a plurality of pixel units positioned on the substrate, each pixel unit comprises sub-pixels with different colors, each sub-pixel in at least part of the sub-pixels comprises a first electrode, a luminous functional layer and a second electrode which are sequentially stacked, the first electrode is positioned between the luminous functional layer and the substrate, A pixel defining pattern at least on a side of the first electrode away from the substrate, the pixel defining pattern including a plurality of first openings configured to define light emitting regions of a plurality of sub-pixels in the plurality of pixel units and a plurality of second openings; Wherein the isolation layer is located between the first electrode and the substrate base plate, and edges of the isolation layer exposed by the plurality of second openings are configured to block at least part of the light-emitting functional layer.
10. 10. The display substrate according to claim 9, wherein the plurality of pixel units are arranged in one-to-one correspondence with the plurality of isolation patterns, and a plurality of isolation sub-patterns in each isolation pattern are arranged in one-to-one correspondence with sub-pixels in each pixel unit; Each pixel unit comprises a first color sub-pixel, a second color sub-pixel and a third color sub-pixel, wherein the first color sub-pixel and the second color sub-pixel are arranged along the second direction, the first color sub-pixel and the third color sub-pixel are arranged along the first direction, and in the second direction, the distance between the edge of the light emitting area of at least one of the first color sub-pixel and the second color sub-pixel and the edge of the corresponding isolation sub-pattern is smaller than the distance between the edge of the light emitting area of the third color sub-pixel and the edge of the corresponding isolation sub-pattern.
11. 11. The display substrate according to claim 9, wherein the plurality of pixel units are arranged in one-to-one correspondence with the plurality of isolation patterns, and a plurality of isolation sub-patterns in each isolation pattern are arranged in one-to-one correspondence with sub-pixels in each pixel unit; Each pixel unit comprises a first color sub-pixel, two second color sub-pixels and a third color sub-pixel, wherein the two second color sub-pixels comprise a first pixel block and a second pixel block, and the area of a light-emitting area of each first color sub-pixel and each second color sub-pixel is smaller than that of a light-emitting area of each third color sub-pixel; The first color sub-pixels and the first pixel blocks are arranged along the first direction, the third color sub-pixels and the second pixel blocks are arranged along the first direction, the first color sub-pixels and the second pixel blocks are arranged along the second direction, the third color sub-pixels and the first pixel blocks are arranged along the second direction, and in the same direction of the first direction and the second direction, the distance between the edge of the light emitting area of the third color sub-pixels and the edge of the corresponding isolation sub-pattern is not greater than the distance between the edge of the light emitting area of at least one of the other color sub-pixels and the edge of the corresponding isolation sub-pattern.
12. 12. The display substrate according to claim 10, wherein at least part of edges of the isolation sub-patterns corresponding to the third color sub-pixels extending in the first direction are flush with at least part of edges of the isolation sub-patterns corresponding to the other color sub-pixels extending in the first direction in the same pixel unit.
13. 13. The display substrate according to claim 10, wherein the plurality of isolation patterns are integrally provided.
14. 14. The display substrate according to claim 10, wherein in the same isolation pattern, a space is provided between adjacent isolation sub-patterns, and an extending direction of the space intersects with an arrangement direction of the adjacent isolation sub-patterns.
15. 15. The display substrate according to claim 10, wherein the first electrode includes a main body electrode and a connection electrode, the connection electrode does not overlap the first opening in a direction perpendicular to the substrate, the connection electrode is configured to be electrically connected to a pixel circuit included in the sub-pixel; The isolation patterns comprise protruding parts located between at least two adjacent isolation sub-patterns, the protruding parts and at least one of the two adjacent isolation sub-patterns are integrally arranged, and the protruding parts comprise through holes so that the connecting electrodes are electrically connected with the pixel circuits through the through holes.
16. 16. The display substrate according to claim 15, wherein a space extending in the second direction is provided between the spacer sub-pattern corresponding to the third color sub-pixel and the spacer sub-pattern corresponding to the other color sub-pixel adjacent to the third color sub-pixel in the first direction, and a ratio of widths at different positions other than the protruding portion in the space is 0.9 to 1.1.
17. 17. The display substrate according to claim 15, wherein a space is provided between at least one protrusion and the spacer pattern adjacent thereto.
18. 18. The display substrate according to claim 10, wherein each of the protrusions is connected to one of the barrier sub-patterns located at both sides thereof and is spaced apart from the other.
19. 19. The display substrate according to claim 10, wherein any adjacent two of the barrier sub-patterns arranged in the second direction are independent of each other, and the barrier sub-pattern corresponding to the third color sub-pixel and the barrier sub-pattern corresponding to one of the first color sub-pixel and the second color sub-pixel adjacent to the third color sub-pixel are connected to each other, or Any adjacent isolation sub-patterns arranged along the first direction are of independent structures, and the isolation sub-patterns corresponding to the first color sub-pixels and the isolation sub-patterns corresponding to the second color sub-pixels in the same pixel unit are connected with each other, or the isolation sub-patterns corresponding to the first color sub-pixels and the isolation sub-patterns corresponding to the second color sub-pixels in adjacent pixel units are respectively connected with each other.
20. 20. The display substrate according to claim 10, wherein in one of adjacent pixel units arranged in the second direction, the isolation sub-pattern corresponding to the third color sub-pixel and the isolation sub-pattern corresponding to the other color sub-pixel are integrally provided, and in the other of the adjacent pixel units, the isolation sub-pattern corresponding to the third color sub-pixel and the isolation sub-pattern corresponding to the other color sub-pixel are independent of each other; In the first direction, the isolation sub-pattern corresponding to the third color sub-pixel and the isolation sub-pattern corresponding to the other color sub-pixel located at one side of the third color sub-pixel are integrally arranged, and the isolation sub-patterns corresponding to the other color sub-pixels located at the other side of the third color sub-pixel are independent from each other.

Description

Display substrate and display device Technical Field The embodiment of the utility model relates to a display substrate and a display device. Background An Organic Light Emitting Diode (OLED) display device may employ an organic light emitting display device having a Tandem (Tandem) structure, which increases the lifetime and brightness of the light emitting device by adding at least one light emitting layer and a charge generating layer to the device, thereby being beneficial to realizing the advantages of long lifetime, high efficiency, low power consumption, active light emission, high light emission brightness, high resolution, wide viewing angle, and fast response speed. Disclosure of utility model The utility model provides a display substrate and a display device. The utility model provides a display substrate which comprises a substrate base plate and an isolation layer, wherein the substrate base plate comprises a display area, and the isolation layer is positioned on the substrate base plate. The isolation layer is arranged in the display area, the isolation layer comprises a plurality of isolation patterns arranged in an array along a first direction and a second direction, each isolation pattern comprises a plurality of isolation sub-patterns, the first direction is intersected with the second direction, at least a first interval and a second interval which are arranged along the second direction are arranged between adjacent isolation patterns arranged along the first direction, one of the adjacent isolation patterns at least comprises a first isolation sub-pattern and a second isolation sub-pattern which are arranged along the second direction, the interval between the first isolation sub-pattern and the other isolation pattern in the adjacent isolation pattern is the first interval, the interval between the second isolation sub-pattern and the other isolation pattern in the adjacent isolation pattern is the second interval, and the ratio of the width of at least part of the first interval to the width of at least part of the second interval is 0.9-1.1. For example, according to an embodiment of the present utility model, at least a third space and a fourth space are provided between adjacent isolation patterns arranged along the second direction, one of the adjacent isolation patterns includes at least a third isolation sub-pattern and a fourth isolation sub-pattern arranged along the first direction, the space between the third isolation sub-pattern and another one of the adjacent isolation patterns is the third space, the space between the fourth isolation sub-pattern and another one of the adjacent isolation patterns is the fourth space, and a ratio between a width of at least a portion of the third space and a width of at least a portion of the fourth space is 0.9 to 1.1. For example, according to an embodiment of the present utility model, at least a portion of an edge of the first isolation sub-pattern is flush with at least a portion of an edge of the second isolation sub-pattern, and at least a portion of an edge of the third isolation sub-pattern is flush with at least a portion of an edge of the fourth isolation sub-pattern. For example, according to an embodiment of the present utility model, the width of the first space, the width of the second space, the width of the third space, and the width of the fourth space are all not less than 1.8 micrometers and not more than 12 micrometers. For example, according to an embodiment of the present utility model, at least two adjacent isolation patterns are independent structures from each other. For example, according to an embodiment of the present utility model, the substrate base further includes a peripheral region surrounding the display region, the isolation layer includes a first isolation layer located at the display region and a second isolation layer located at the peripheral region, the first isolation layer includes the plurality of isolation patterns, and the second isolation layer surrounds at least a portion of the first isolation layer. For example, according to an embodiment of the present utility model, the second isolation layer has a size not smaller than the sum of the sizes of the adjacent two isolation sub-patterns arranged in the first direction, and the second isolation layer has a size not smaller than the sum of the sizes of the adjacent two isolation sub-patterns arranged in the second direction. For example, according to an embodiment of the present utility model, the second isolation layer includes a plurality of sub-patterns including at least a first sub-pattern, a second sub-pattern, and a third sub-pattern, the first sub-pattern having a shape substantially identical to that of the first isolation sub-pattern, the second sub-pattern having a shape substantially identical to that of the second isolation sub-pattern, and the third sub-pattern having a shape substantially identical to that of an isolation sub