Display substrate and display device

Abstract

Provided are a display substrate and a display device. The display substrate comprises a substrate, a pixel definition layer, and an isolation structure. Each sub-pixel comprises a pixel opening in the pixel definition layer, a light-emitting functional layer, and a first electrode and a second electrode on both sides of the light-emitting functional layer in a direction perpendicular to the substrate. The pixel opening of each sub-pixel exposes at least part of the first electrode of each sub-pixel to define a light-emitting area of the sub-pixel. The isolation structure comprises a plurality of isolation portions. At least part of the light-emitting functional layer of each sub-pixel at the isolation portions has a thickness smaller than that of the part overlapping the first electrode. The isolation structure comprises a passage between adjacent sub-pixels in at least part of the sub-pixels. The second electrode of the adjacent sub-pixels is continuously arranged through the passage. The arrangement of the isolation structure in the display substrate can effectively reduce the risk of crosstalk between adjacent sub-pixels, and the second electrode of the adjacent sub-pixels has good continuity, which is conducive to improving the display effect of the display substrate.

Description

Technical Field

[0001] This utility model relates to a display substrate and a display device. Background Technology

[0002] Organic light-emitting diode (OLED) displays offer advantages such as rich colors, fast response time, and foldability. The tandem structure employed in OLED displays improves the lifespan and brightness of the light-emitting device by adding at least one light-emitting layer and a charge-generating layer, thereby extending the standby time and overall lifespan of the display. Utility Model Content

[0003] At least one embodiment of the present invention provides a display substrate, comprising: a substrate, a pixel defining layer, and a plurality of sub-pixels, wherein the pixel defining layer is located on one side of the substrate; each sub-pixel includes a pixel opening located in the pixel defining layer, a light-emitting functional layer, and a first electrode and a second electrode located on both sides of the light-emitting functional layer along a direction perpendicular to the substrate, wherein the pixel opening of each sub-pixel exposes at least a portion of the first electrode of each sub-pixel to define a light-emitting area of ​​the sub-pixel; the display substrate further includes an isolation structure, the isolation structure including a plurality of isolation portions, wherein at least a portion of the light-emitting functional layer of each sub-pixel located at the isolation portion has a thickness less than the thickness of the portion overlapping with the first electrode, the isolation structure including a passage located between adjacent sub-pixels in at least a portion of the sub-pixels, wherein the second electrodes of the adjacent sub-pixels are continuously disposed through the passage.

[0004] For example, in a display substrate provided according to at least one embodiment of the present invention, the pixel defining layer includes a pixel defining portion surrounding each of the pixel openings, the isolation structure is located in the pixel defining portion, and the plurality of isolation portions include at least one isolation groove.

[0005] For example, in a display substrate provided according to at least one embodiment of the present invention, the plurality of sub-pixels are arranged in an array along a first arrangement direction and a second arrangement direction to form a plurality of sub-pixel rows arranged along the first arrangement direction and a plurality of sub-pixel columns arranged along the second arrangement direction, wherein the first arrangement direction and the second arrangement direction intersect each other and are both parallel to the substrate.

[0006] For example, according to at least one embodiment of the present invention, the plurality of isolation portions include at least one isolation trench group, each isolation trench group being at least partially located between the light-emitting areas of the adjacent sub-pixels, and the isolation trench group including two isolation trenches spaced apart, the interval between the two isolation trenches being part of the passage, and in the arrangement direction of the adjacent sub-pixels, one of the two isolation trenches has a first bending portion bending toward the light-emitting area of ​​one of the adjacent sub-pixels, and the other of the two isolation trenches has a second bending portion bending toward the light-emitting area of ​​the other of the adjacent sub-pixels.

[0007] For example, in a display substrate provided according to at least one embodiment of the present invention, one end of the first bent portion is located in the area enclosed by the second bent portion, and one end of the second bent portion is located in the area enclosed by the first bent portion.

[0008] For example, in a display substrate provided according to at least one embodiment of the present invention, the orthographic projection of either the first bending portion or the second bending portion on the substrate is U-shaped.

[0009] For example, according to at least one embodiment of the present invention, the display substrate includes a plurality of first sub-pixels, a plurality of second sub-pixels, and a plurality of third sub-pixels. The plurality of isolation portions include a plurality of first type slots, a plurality of second type slots, a plurality of third type slots, and a plurality of fourth type slots. Each first sub-pixel has four first type slots arranged in the circumferential direction of its light-emitting area. Each second sub-pixel has four second type slots arranged in the circumferential direction of its light-emitting area. Each third sub-pixel has two third type slots and two fourth type slots arranged in the circumferential direction of its light-emitting area.

[0010] For example, in a display substrate provided according to at least one embodiment of the present invention, in the first arrangement direction or the second arrangement direction, the isolation groove group between the first sub-pixel and the light-emitting area of ​​its adjacent sub-pixel includes a first isolation groove group. The first isolation groove group includes a first type groove and the third type groove, and the first type groove is closer to the light-emitting area of ​​the first sub-pixel than the third type groove.

[0011] For example, in a display substrate provided according to at least one embodiment of the present invention, in the first arrangement direction or the second arrangement direction, the isolation groove group between the second sub-pixel and the light-emitting area of ​​its adjacent sub-pixel includes a second isolation groove group. The second isolation groove group includes a second type groove and the fourth type groove, and the second type groove is closer to the light-emitting area of ​​the second sub-pixel than the fourth type groove.

[0012] For example, in a display substrate provided according to at least one embodiment of the present invention, adjacent first-type slots and second-type slots in a first direction are connected to each other, and adjacent first-type slots in a second direction are connected to each other. The first direction is the direction in which the first arrangement direction is rotated counterclockwise by a predetermined angle, and the second direction is the direction in which the second arrangement direction is rotated counterclockwise by the predetermined angle.

[0013] For example, in a display substrate provided according to at least one embodiment of the present invention, in the first direction, there is a first interval between adjacent third type slots and a second interval between adjacent fourth type slots, the first interval and the second interval are in communication with each other, and the plurality of isolation slots further include at least one fifth type slot, the fifth type slot being located between adjacent first and second intervals in the second direction.

[0014] For example, in a display substrate provided according to at least one embodiment of the present invention, the fifth type of groove includes two ends opposite to each other in the first direction, and the two ends are respectively located on both sides of the first interval and on both sides of the second interval.

[0015] For example, according to at least one embodiment of the present invention, the display substrate includes at least one first isolation groove, each first isolation groove surrounding the light-emitting area of ​​the sub-pixel, the first isolation groove including a first bending structure and a second bending structure connected to each other, the first bending structure bending toward the light-emitting area of ​​the sub-pixel, and the second bending structure bending away from the light-emitting area of ​​the sub-pixel.

[0016] For example, according to at least one embodiment of the present invention, the display substrate includes a plurality of first sub-pixels, a plurality of second sub-pixels, and a plurality of third sub-pixels. In the first arrangement direction or the second arrangement direction, a first isolation groove is provided between the light-emitting areas of adjacent sub-pixels. The at least one first isolation groove includes a plurality of first sub-isolation grooves and a plurality of second sub-isolation grooves. Four first sub-isolation grooves are provided in the circumferential direction of the light-emitting area of ​​each first sub-pixel. Four second sub-isolation grooves are provided in the circumferential direction of the light-emitting area of ​​each second sub-pixel. Two first sub-isolation grooves and two second sub-isolation grooves are provided in the circumferential direction of the light-emitting area of ​​each third sub-pixel.

[0017] For example, according to at least one embodiment of the present invention, the four first sub-isolation slots disposed in the circumferential direction of the first sub-pixel include a first sub-isolation slot group and a second sub-isolation slot group disposed at intervals. The first sub-isolation slot group and the second sub-isolation slot group are symmetrically and spaced apart in a first direction. The first sub-isolation slot group and the second sub-isolation slot group each include two first sub-isolation slots that are symmetrically distributed and connected to each other in a second direction. The first direction is the direction in which the first arrangement direction is rotated counterclockwise by a predetermined angle, and the second direction is the direction in which the second arrangement direction is rotated counterclockwise by the predetermined angle.

[0018] For example, in the display substrate provided according to at least one embodiment of the present invention, in the circumferential direction of the second sub-pixel, two adjacent second sub-isolation slots are symmetrically and spaced apart in the first direction, and two adjacent second sub-isolation slots are symmetrically distributed in the second direction.

[0019] For example, in a display substrate provided according to at least one embodiment of the present invention, the first sub-isolation trench and the second sub-isolation trench adjacent in the first direction are connected to each other to form a third sub-isolation trench group, and two third sub-isolation trench groups are provided in the circumferential direction of the light-emitting area of ​​the third sub-pixel.

[0020] For example, according to at least one embodiment of the present invention, a display substrate has a first spacing portion between two adjacent first sub-isolation slots in a first direction, and a second spacing portion between two adjacent second sub-isolation slots in a first direction. The first spacing portion and the second spacing portion are in communication with each other. In the second direction, there is a first spacing portion and a second spacing portion between adjacent second sub-pixels and third sub-pixels. The plurality of isolation slots also include at least one second isolation slot, which is located between the first spacing portion and the second spacing portion.

[0021] For example, in a display substrate provided according to at least one embodiment of the present invention, the second isolation groove includes two ends opposite to each other in the first direction, wherein the two ends of the second isolation groove are respectively located on both sides of the first interval portion and on both sides of the second interval portion in the first direction.

[0022] For example, in a display substrate provided according to at least one embodiment of the present invention, the plurality of isolation portions include a plurality of first annular isolation grooves, and at least one first annular isolation groove is provided in the circumferential direction of the light-emitting area of ​​each sub-pixel in the at least some sub-pixels.

[0023] For example, in a display substrate provided according to at least one embodiment of the present invention, each of the first annular isolation grooves includes at least one first notch.

[0024] For example, in a display substrate provided according to at least one embodiment of the present invention, in the first arrangement direction or the second arrangement direction, the first notches of the first annular isolation grooves located in the circumferential direction of the light-emitting area of ​​the adjacent sub-pixels are staggered with each other.

[0025] For example, in a display substrate provided according to at least one embodiment of the present invention, each first notch of one of the adjacent sub-pixels in the first arrangement direction is located on one side of the light-emitting area of ​​the sub-pixel in the second arrangement direction, and each first notch of the other of the adjacent sub-pixels is located on one side of the light-emitting area of ​​the sub-pixel in the first arrangement direction.

[0026] For example, in a display substrate provided according to at least one embodiment of the present invention, the plurality of isolation grooves further include at least one second annular isolation groove, the second annular isolation groove being spaced apart from the first annular isolation groove and surrounding the first annular isolation groove, the second annular isolation groove including at least one second notch.

[0027] For example, in a display substrate provided according to at least one embodiment of the present invention, the second notch is located on the extension line of the diagonal of the light-emitting area of ​​the sub-pixel surrounded by the second annular isolation groove.

[0028] For example, in a display substrate provided according to at least one embodiment of the present invention, the plurality of isolation portions further include at least one first isolation member, the first isolation member being connected to the second annular isolation groove, and the first isolation member extending along the extension direction of the diagonal of the light-emitting area of ​​the sub-pixel surrounded by the second annular isolation groove.

[0029] For example, according to at least one embodiment of the present invention, the display substrate further includes at least one second isolation member, at least a portion of which is located between the first annular isolation grooves surrounding the light-emitting areas of the adjacent sub-pixels. The second isolation member includes a plurality of first sub-isolation members, which extend along the first arrangement direction or the second arrangement direction and are located between the first annular isolation grooves in the circumferential direction of the adjacent sub-pixels in the first arrangement direction or the second arrangement direction.

[0030] For example, in a display substrate provided according to at least one embodiment of the present invention, adjacent first sub-isolators in at least a portion of the first sub-isolators are connected to each other.

[0031] For example, according to at least one embodiment of the present invention, the display substrate provided by the present invention further includes at least one second sub-isolation member, the second sub-isolation member being located between the corners of the light-emitting areas of adjacent sub-pixels in a first direction or a second direction, and the second sub-isolation member being connected to at least one first sub-isolation member, the first direction being the direction in which the first arrangement direction is rotated counterclockwise by a predetermined angle, and the second direction being the direction in which the second arrangement direction is rotated counterclockwise by the predetermined angle.

[0032] For example, according to at least one embodiment of the present invention, the display substrate includes a plurality of spaced-apart first strip-shaped isolation structures and a plurality of spaced-apart second strip-shaped isolation structures. The first strip-shaped isolation structures are located between adjacent sub-pixels in the first arrangement direction or the second arrangement direction, and the extending direction of the first strip-shaped isolation structures intersects with the arrangement direction of the adjacent sub-pixels. The second strip-shaped isolation structures are located between the corners of the light-emitting areas of adjacent sub-pixels in the first direction or the second direction, where the first direction is the direction in which the first arrangement direction is rotated counterclockwise by a predetermined angle, and the second direction is the direction in which the second arrangement direction is rotated counterclockwise by the predetermined angle.

[0033] For example, according to at least one embodiment of the present invention, the display substrate has a second strip-shaped isolation structure connected to at least one first strip-shaped isolation structure. In the circumferential direction of the light-emitting area of ​​the same sub-pixel, there is a gap between each second strip-shaped isolation structure and at least one first strip-shaped isolation structure. In the first arrangement direction or the second arrangement direction, the gap at least partially represents the pathway between adjacent sub-pixels in the sub-pixel.

[0034] Another embodiment of the present invention provides a display device, including the display substrate provided in any of the above embodiments. Attached Figure Description

[0035] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only relate to some embodiments of this utility model, and are not intended to limit this utility model.

[0036] Figure 1 This is a partial planar schematic diagram of a display substrate provided for at least one embodiment of the present invention.

[0037] Figure 2 for Figure 1 A magnified view of a portion of region P in the middle.

[0038] Figure 3 For along Figure 1The diagram shows a partial cross-sectional structure cut by line AA'.

[0039] Figure 4 For along Figure 1 A schematic diagram of the local cross-sectional structure intercepted by line BB'.

[0040] Figures 5-10 A partial planar schematic diagram of some display substrates provided for at least one embodiment of the present invention.

[0041] Figure 11 This is a schematic block diagram of a display device according to another embodiment of the present invention. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0043] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects.

[0044] The features such as "parallel," "perpendicular," and "identical" used in this embodiment of the invention include the strictly defined meanings of "parallel," "perpendicular," and "identical," as well as cases where "approximately parallel," "approximately perpendicular," and "approximately identical" include certain errors. Considering measurement and errors associated with the measurement of a specific quantity (e.g., limitations of the measurement system), these refer to the acceptable deviation range for a specific value as determined by a person skilled in the art. For example, "approximately" can mean within one or more standard deviations, or within 10% or 5% of the value. Unless otherwise specified in the following embodiments of the invention, the quantity of a component is implied to mean that the component can be one or more, or can be understood as at least one. "At least one" refers to one or more, and "more" refers to at least two. The term "integrated structure" used in this embodiment of the invention refers to two or more components formed using the same material in the same patterning process.

[0045] To extend the standby time and lifespan of display devices, some displays have incorporated tandem technology. Tandem technology involves stacking and connecting two light-emitting functional layers (LEDs) of a sub-pixel in series, with a charge generation layer (CGL) between the stacked LEDs, such as a P-type doped CGL and an N-type doped CGL. Compared to display substrates without tandem devices, tandem devices use N / P-CGL as a heterojunction to connect the two LEDs in series. This technology achieves dual LEDs connected in series, significantly reducing the luminous current of the LEDs at the same luminous intensity, thus improving the lifespan of organic light-emitting elements and reducing power consumption.

[0046] However, due to the complexity and difficulty of tandem technology, and the numerous process issues, the yield rate of some products is low. Because tandem technology requires two evaporation processes for the light-emitting functional layer material, crosstalk in the light-emitting functional layer is particularly severe. To mitigate this, some display devices incorporate isolation pillars or similar structures around the light-emitting area of ​​the sub-pixels to isolate the light-emitting functional layer. However, while these structures isolate the light-emitting functional layer, they also isolate the cathode of the sub-pixel, resulting in a significantly higher cathode resistance compared to conventional products, leading to higher voltage across the cathode or higher power consumption. Furthermore, the isolation effectiveness of some isolation pillars and similar structures needs improvement and optimization.

[0047] Therefore, how to effectively isolate the light-emitting functional layers between the light-emitting areas of adjacent sub-pixels while ensuring the continuity of the cathode has become an urgent problem to be studied and solved.

[0048] At least one embodiment of the present invention provides a display substrate, including a substrate, a pixel defining layer, and a plurality of sub-pixels. The pixel defining layer is located on one side of the substrate. Each sub-pixel includes a pixel opening in the pixel defining layer, a light-emitting functional layer, and a first electrode and a second electrode located on both sides of the light-emitting functional layer along a direction perpendicular to the substrate. The pixel opening of each sub-pixel exposes at least a portion of the first electrode of the sub-pixel to define the light-emitting area of ​​the sub-pixel. The display substrate further includes an isolation structure, which includes a plurality of isolation portions. The thickness of at least a portion of the light-emitting functional layer of each sub-pixel located at the isolation portion is less than the thickness of the portion overlapping with the first electrode. The isolation structure includes a passage located between adjacent sub-pixels in at least a portion of the sub-pixels, and the second electrodes of adjacent sub-pixels are continuously disposed through the passage.

[0049] Another embodiment of the present invention provides a display device, including the display substrate provided in any embodiment of the present invention.

[0050] In the display substrate and display device provided in at least one embodiment of the present invention, since the light-emitting functional layer of the sub-pixel can be thinned or isolated at the partition structure, the charge transfer efficiency can be reduced, thereby reducing the risk of crosstalk between adjacent sub-pixels; in addition, the second electrodes of adjacent sub-pixels can be continuously arranged, which can help improve the display effect of the display substrate.

[0051] The display substrate and display device provided in the embodiments of this utility model are described below with reference to the accompanying drawings.

[0052] Figure 1 A partial planar schematic diagram of a display substrate provided for at least one embodiment of the present invention; Figure 2 for Figure 1 A magnified view of a portion of region P in the middle; Figure 3 For along Figure 1 A schematic diagram of the local cross-sectional structure intercepted by line AA'; Figure 4 For along Figure 1 A schematic diagram of the local cross-sectional structure intercepted by line BB'.

[0053] like Figure 1 and Figure 3 As shown, the display substrate includes a substrate 01, a pixel defining layer 200, a plurality of sub-pixels 100, and an isolation structure 30. The pixel defining layer 200 is located on one side of the substrate 01. Each sub-pixel 100 includes a pixel opening 210 located in the pixel defining layer 200, a light-emitting functional layer 130, and a first electrode 110 and a second electrode 120 located on both sides of the light-emitting functional layer 130 along a direction perpendicular to the substrate 01. For example, the first electrode 110 can be an anode, and the second electrode 120 can be a cathode.

[0054] like Figure 1 and Figure 3 As shown, the pixel opening 210 of each sub-pixel 100 exposes at least a portion of the first electrode 110 of each sub-pixel 100 to define the light-emitting area 0100 of the sub-pixel 100. For example, the first electrode 110 and the second electrode 120 located on both sides of the light-emitting functional layer 130 can drive the light-emitting functional layer 130 located between them to emit light. For example, the light-emitting area 0100 of the sub-pixel 10 refers to the area of ​​the sub-pixel 10 that effectively emits light, and the shape of the light-emitting area 0100 refers to a two-dimensional shape. For example, the shape of the light-emitting area 0100 may be the same as the shape of the orthographic projection of the portion of the first electrode 110 exposed by the pixel opening 210 onto the substrate 01.

[0055] like Figure 1 and Figure 3As shown, the isolation structure 30 includes multiple isolation portions 300, and at least a portion of the thickness of the light-emitting functional layer 130 of each sub-pixel 100 located at the isolation portion 300 is less than the thickness of the portion overlapping with the first electrode 110. For example, the light-emitting functional layer 130 includes multiple film layers. For example, at least one film layer in the light-emitting functional layer 130 of the sub-pixel 100 is separated by the isolation portion 300. For example, all film layers in the light-emitting functional layer 130 of the sub-pixel 100 are separated by the isolation portion 300. For example, at least one film layer in the light-emitting functional layer 130 of the sub-pixel 100 is thinned at the isolation portion 300. It should be noted that the embodiments of this utility model do not specifically limit the position and specific structural form of the isolation structure, which can be set according to design needs.

[0056] like Figure 1 and Figure 3 As shown, the isolation structure 30 includes a passage R located between adjacent sub-pixels 100 in at least a portion of the sub-pixels 100, and the second electrodes 120 of adjacent sub-pixels 100 are continuously disposed through this passage R. That is, the second electrodes 120 of each sub-pixel 100 are not separated by the isolation structure 30, and the second electrodes 120 of adjacent sub-pixels 100 are electrically connected to each other. For example, Figure 1 The pathways shown are merely illustrative. There can be multiple pathways between adjacent sub-pixels 100, and different pathways can have different path forms, as long as the second electrodes of adjacent sub-pixels can be connected to each other to have continuity. The embodiments of this utility model do not limit this.

[0057] In the display substrate and display device provided in at least one embodiment of the present invention, since the light-emitting functional layer of the sub-pixel can be thinned or isolated at the partition structure, the charge transfer efficiency can be reduced, thereby reducing the risk of crosstalk between adjacent sub-pixels; in addition, the second electrodes of adjacent sub-pixels can be continuously arranged, which can help improve the display effect of the display substrate.

[0058] For example, such as Figure 3 As shown, the light-emitting functional layer 130 may include a light-emitting layer for emitting light and a charge-generating layer 133. For example, the light-emitting functional layer 130 may be a film layer in an organic light-emitting element. For example, the light-emitting functional layer 130 may include a first light-emitting layer, a charge-generating layer (CGL) 133, and a second light-emitting layer stacked together, with the charge-generating layer 133 located between the first light-emitting layer and the second light-emitting layer. Figure 3As shown, the thicknesses of the multiple film layers included in the light-emitting functional layer 130 are only for clear illustration of each film layer and do not represent actual dimensions. For example, in the same sub-pixel 100, the first light-emitting layer and the second light-emitting layer can be light-emitting layers that emit the same color of light. For example, the first light-emitting layer in a sub-pixel 100 that emits different colors of light emits different colors of light. For example, the second light-emitting layer in a sub-pixel 100 that emits different colors of light emits different colors of light.

[0059] For example, such as Figure 3 As shown, the film layer 131 between the charge generation layer 133 and the substrate 01 may include a first light-emitting layer and other functional layers. For example, a hole injection layer may be disposed between the first electrode 110 and the first light-emitting layer; an electron transport layer may be disposed between the charge generation layer 133 and the first light-emitting layer. For example, the film layer 132 between the charge generation layer 133 and the second electrode 120 may include a second light-emitting layer and other functional layers. For example, a hole transport layer may be disposed between the second light-emitting layer and the charge generation layer 133. For example, an electron transport layer and an electron injection layer may be disposed between the second light-emitting layer and the second electrode 120.

[0060] For example, the hole injection layer, hole transport layer, electron transport layer, electron injection layer, charge generation layer, and second electrode mentioned above are all shared film layers for multiple sub-pixels, and can be called common layers. For example, the common layer and the second electrode mentioned above can be film layers formed using an open mask. For example, the first light-emitting layer and the second light-emitting layer can be film layers formed using a fine metal mask (FMM), and a gap can be set between the light-emitting layers of different sub-pixels.

[0061] For example, such as Figure 3 As shown, the charge generation layer 133 has strong conductivity, which enables the light-emitting functional layer 130 to have advantages such as long lifetime, low power consumption, and high brightness. For example, the charge generation layer 133 may include an N-type charge generation layer and a P-type charge generation layer. For example, the material of the charge generation layer 133 may be a material containing phosphorothoxy groups or a material containing triazine. For example, the ratio of the electron mobility of the material in the charge generation layer 133 to the electron mobility of the material in the electron transport layer is 10. -2 ~10 2 .

[0062] For example, such as Figure 3As shown, the array substrate further includes a film layer 02, which is located between the first electrode 110 of the sub-pixel 100 and the substrate 01. For example, the sub-pixel also includes a pixel circuit (not shown in the figure), and the first electrode of the sub-pixel can be electrically connected to the pixel circuit through a via. For example, the film layer 02 may also include other structures, such as a passivation layer, a buffer layer, a gate insulating layer, an interlayer insulating layer, etc., and the embodiments of this utility model are not limited in this regard. For example, the array substrate further includes a film layer 03, which is an insulating layer in contact with the first electrode of the sub-pixel, such as a planarization layer, but the embodiments of this utility model are not limited in this regard.

[0063] In some embodiments, such as Figure 1 and Figure 3 As shown, the pixel defining layer 200 also includes a pixel defining portion 230 surrounding each pixel opening 210, with an isolation structure 30 located within the pixel defining portion 230. For example, the plurality of isolation portions 300 include at least one isolation groove 3000. For example, at least one isolation groove 3000 is located in the pixel defining portion 230 between the pixel openings 210 of adjacent sub-pixels 100 (such as the second sub-pixel 102 and the third sub-pixel 103). The light-emitting functional layers 130 of the second sub-pixel 102 and the third sub-pixel 103 are both disconnected at the opening of the isolation groove 3000, thereby reducing the risk of crosstalk between the second sub-pixel 102 and the adjacent third sub-pixel 103.

[0064] In some embodiments, such as Figure 1 As shown, multiple sub-pixels 100 are arranged in an array along a first arrangement direction X and a second arrangement direction Y to form multiple sub-pixel rows 010 arranged along the first arrangement direction Y and multiple sub-pixel columns 020 arranged along the second arrangement direction X. The first arrangement direction X and the second arrangement direction Y intersect each other and are both parallel to the substrate 01. For example, the first arrangement direction X is perpendicular to the second arrangement direction Y. For example, in an embodiment of this invention, the arrangement direction of adjacent sub-pixels refers to either the first arrangement direction X or the second arrangement direction Y.

[0065] In some embodiments, such as Figure 1As shown, the plurality of sub-pixels 100 includes a plurality of first sub-pixels 101, a plurality of second sub-pixels 102, and a plurality of third sub-pixels 103. The plurality of sub-pixels 100 are arranged in alternating groups of first sub-pixel groups 0010 and a plurality of second sub-pixel groups 0020. The first sub-pixel group 0010 includes alternating first sub-pixels 101 and second sub-pixels 102 along a first direction U, and the second sub-pixel group 020 includes a plurality of third sub-pixels 103 arranged along the first direction U. For example, the first sub-pixels 101, second sub-pixels 102, and third sub-pixels 103 emit different colors. The plurality of first sub-pixel groups 0010 and the plurality of second sub-pixel groups 0020 are alternating along a second direction V. The first direction U intersects the second direction V and is parallel to the substrate 01. For example, the first direction U is perpendicular to the second direction V. For example, the first direction U is the direction after rotating the first arrangement direction X counterclockwise by a predetermined angle, and the second direction V is the direction after rotating the second arrangement direction Y counterclockwise by a predetermined angle. For example, the predetermined angle is 45 degrees, but it is not limited to this.

[0066] In some embodiments, such as Figure 1 As shown, the first sub-pixel group 0010 and the second sub-pixel group 0020 are staggered in the first direction U. At least some of the first sub-pixels 101 are surrounded by eight sub-pixels 100, and these eight sub-pixels 100 include alternately arranged second sub-pixels 102 and third sub-pixels 103. For example, the area of ​​the light-emitting area 0100 of the first sub-pixel 101 and the area of ​​the light-emitting area 0100 of the third sub-pixel 103 are both smaller than the area of ​​the light-emitting area 0100 of the second sub-pixel 102, and the area of ​​the light-emitting area 0100 of the first sub-pixel 103 is larger than the area of ​​the light-emitting area 0100 of the third sub-pixel 103. Of course, the multiple sub-pixels can also adopt other arrangements according to design needs. The embodiments of this utility model do not limit the arrangement of multiple sub-pixels.

[0067] In some embodiments, such as Figure 1 and Figure 2 As shown, the plurality of isolation sections 300 include at least one isolation slot group 310. At least a portion of each isolation slot group 310 is located between the light-emitting areas 0100 of adjacent sub-pixels 100, and the isolation slot group 310 includes two spaced-apart isolation slots 3000. For example, as... Figure 2 and Figure 3 As shown, an isolation slot group 310 is provided between adjacent second sub-pixels 102 and third sub-pixels 103 in the first arrangement direction X, and the isolation slot group 310 includes two isolation slots 3000. Figure 1 and Figure 2As shown, the gap GP between the two isolation slots 3000 in the isolation slot group 310 is part of the path R, and the second electrode 120 of the second sub-pixel 102 and the second electrode 120 of the third sub-pixel 103 are continuously arranged in the gap GP to have good continuity.

[0068] In some embodiments, such as Figure 1 and Figure 2 As shown, in the arrangement direction of adjacent sub-pixels 100, one of the two isolation trenches 3000 in the same isolation trench group 310 has a first bending portion 3100 that bends toward the light-emitting area 0100 of one of the adjacent sub-pixels 100, and the other of the two isolation trenches 3000 has a second bending portion 3200 that bends toward the light-emitting area 0100 of the other of the adjacent sub-pixels 100. For example, the two isolation trenches 3000 in the same isolation trench group 310 are arranged interlockingly. Continuing with... Figure 2 Taking the isolation trench group 310 shown as an example, the isolation trench 3000 that is closer to the second sub-pixel 102 has a first bending portion 3100, and the first bending portion 3100 bends toward the light-emitting area 0100 of the third sub-pixel 103 adjacent to the second sub-pixel 102. For example, the isolation trench 3000 that is closer to the third sub-pixel 103 has a second bending portion 3200, and the second bending portion 3200 bends toward the light-emitting area 0100 of the second sub-pixel 102 adjacent to the third sub-pixel 103.

[0069] By making the two isolation slots in the isolation slot group between adjacent sub-pixels have a first bend and a second bend respectively, the extension path of the isolation slot can be maximized within the interval between adjacent sub-pixels (e.g. at the bend), so that the light-emitting functional layer of the sub-pixel can be located in the isolation slot as much as possible, increasing the contact area between it and the light-emitting functional layer. This can effectively enhance the isolation slot's ability to reduce the thickness of the light-emitting functional layer or its isolation ability, thereby reducing the risk of crosstalk between adjacent sub-pixels.

[0070] In some embodiments, such as Figure 2 As shown, the orthographic projection of either the first bend 3100 or the second bend 3200 onto the substrate 01 is U-shaped. For example, the orthographic projections of both the first bend 3100 and the second bend 3200 onto the substrate 01 are U-shaped. For example, the first bend 3100 is part of an isolation groove 3000, which may also include portions other than the first bend 3100. For example, the second bend 3200 is part of another isolation groove 3000, which may also include portions other than the second bend 3200.

[0071] By making the orthographic projection of either the first bend or the second bend on the substrate U-shaped, the layout space between adjacent sub-pixels can be effectively utilized, and the contact area between the isolation trench and the light-emitting functional layer of the sub-pixel can be increased, so that the light-emitting functional layer of the sub-pixel can be located in the isolation trench as much as possible for thinning or isolation.

[0072] It should be noted that the embodiments of this utility model do not limit the shape of the first bending portion and the second bending portion. For example, the orthographic projection of either the first bending portion or the second bending portion on the substrate can be "S" shaped, or other curved or bent shapes, in order to extend the extension path of the isolation trench, increase the contact area with the light-emitting functional layer, and thus enhance the thinning or isolation capability of the light-emitting functional layer.

[0073] In some embodiments, such as Figure 2 As shown, one end 3101 of the first bend 3100 is located in the area enclosed by the second bend 3200, and one end 3201 of the second bend 3200 is located in the area enclosed by the first bend 3100. For example, the bend areas of the first bend 3100 and the bend areas of the second bend 3200 are arranged opposite to each other.

[0074] This configuration helps to reduce the spacing between adjacent sub-pixels in the arrangement direction, ensuring that the distance between the first bend and the second bend is not too far. This allows the first and second bends to work together to thin and isolate the light-emitting functional layer, effectively reducing the probability of crosstalk.

[0075] In some embodiments, such as Figure 1 As shown, the multiple isolation sections 300 include multiple first-type slots 3010, multiple second-type slots 3020, multiple third-type slots 3030, and multiple fourth-type slots 3040. For example, each first sub-pixel 101 has four first-type slots 3010 circumferentially arranged in the light-emitting area 0100, each second sub-pixel 102 has four second-type slots 3020 circumferentially arranged in the light-emitting area 0100, and each third sub-pixel 103 has two third-type slots 3030 and two fourth-type slots 3040 circumferentially arranged in the light-emitting area 0100. For example, different types of slots surround the light-emitting area 0100 of different sub-pixels 100 and have different shapes. For example, depending on the shape of the light-emitting area 0100 of the sub-pixel 100, the different types of slots have different lengths in their extension direction.

[0076] For example, such as Figure 1As shown, the four first-type slots 3010 disposed in the circumferential direction of the light-emitting area 0100 of the first sub-pixel 101 are basically the same distance from the light-emitting area 0100 of the first sub-pixel 101, and no other isolation part is disposed between any of the four first-type slots 3010 and the light-emitting area 0100 of the first sub-pixel 101. For example, the second electrode 120 in this part of the region is continuously disposed.

[0077] For example, such as Figure 1 As shown, the four second-type slots 3020 disposed in the circumferential direction of the light-emitting area 0100 of the second sub-pixel 102 are basically the same distance from the light-emitting area 0100 of the second sub-pixel 102, and no other isolation part is disposed between any of the four second-type slots 3020 and the light-emitting area 0100 of the second sub-pixel 102. For example, the second electrode 120 in this part of the region is continuously disposed.

[0078] For example, such as Figure 1 As shown, the two third-type slots 3030 and two fourth-type slots 3040 disposed in the circumferential direction of the light-emitting area 0100 of the third sub-pixel 103 are substantially equidistant from the light-emitting area 0100 of the third sub-pixel 103, and no other isolation portion is provided between any of the two third-type slots 3030 and the two fourth-type slots 3040 and the light-emitting area 0100 of the third sub-pixel 103. For example, the second electrode 120 is continuously disposed in this part of the region. For example, the length of the edge of the third-type slot 3030 opposite to the light-emitting area 0100 of the third sub-pixel 103 is less than the length of the edge of the fourth-type slot 3040 opposite to the light-emitting area 0100 of the third sub-pixel 103.

[0079] In some embodiments, such as Figure 1 As shown, in the first arrangement direction X or the second arrangement direction Y, the isolation slot group 310 between the first sub-pixel 101 and the light-emitting area 0100 of its adjacent sub-pixel 100 (e.g., the third sub-pixel 103) includes a first isolation slot group 3110. The first isolation slot group 3110 includes a first type slot 3010 and a third type slot 3030, and the first type slot 3010 is closer to the light-emitting area 0100 of the first sub-pixel 101 than the third type slot 3030. For example, the minimum distance between the first type slot 3010 and the third type slot 3030 in the first isolation slot group 3110 and the light-emitting area 0100 of the first sub-pixel 101 is substantially the same.

[0080] In some embodiments, such as Figure 1As shown, in the first arrangement direction X or the second arrangement direction Y, the isolation slot group 310 between the second sub-pixel 102 and the light-emitting area 0100 of its adjacent sub-pixel 100 (e.g., the third sub-pixel 103) includes a second isolation slot group 3120. The second isolation slot group 3120 includes a second type slot 3020 and a fourth type slot 3040, and the second type slot 3020 is closer to the light-emitting area 0100 of the second sub-pixel 102 than the fourth type slot 3040. For example, the minimum distance between the second type slot 3020 and the fourth type slot 3040 in the second isolation slot group 3120 and the light-emitting area 0100 of the second sub-pixel 102 is substantially the same.

[0081] In some embodiments, such as Figure 1 As shown, in the first arrangement direction X or the second arrangement direction Y, the sub-pixel 100 adjacent to the third sub-pixel 103 is the first sub-pixel 101 or the second sub-pixel 102. Therefore, the isolation groove group 310 between the light-emitting area 0100 of the third sub-pixel 103 and its adjacent sub-pixel 100 includes the first isolation groove group 3110 or the second isolation groove group 3120.

[0082] In some embodiments, such as Figure 1 As shown, in the first direction U, adjacent first-type slots 3010 and second-type slots 3020 are connected to each other to form an integrated structure. For example, a portion of the integrated structure formed above can be located between adjacent third sub-pixels 103 in the second direction V to thin or isolate the light-emitting functional layer of the third sub-pixels 103, thereby reducing the risk of crosstalk and simplifying the manufacturing process.

[0083] In some embodiments, such as Figure 1 As shown, adjacent first-type slots 3010 are connected to each other in the second direction V. For example, two first-type slots 3010 that are adjacent in the circumferential direction of the light-emitting area 0100 of the first sub-pixel 101 and in the second direction V are connected to form an integral structure. For example, a portion of the integral structure formed above may be located between adjacent first sub-pixels 101 and second sub-pixels 102 in the first direction U to thin or isolate the light-emitting functional layer between the light-emitting areas 0100 of the two sub-pixels 100, thereby reducing the risk of crosstalk and simplifying the manufacturing process.

[0084] In some embodiments, such as Figure 2As shown, in the first direction U, adjacent third-type slots 3030 have a first interval G1, and adjacent fourth-type slots 3040 have a second interval G2, with the first interval G1 and the second interval G2 communicating with each other. For example, the communicating first interval G1 and the second interval G2 can be part of a pathway so that the second electrodes 120 of adjacent first sub-pixels 101 and second sub-pixels 102 in the second direction V (see [link to documentation]). Figure 3 The isolation slots 3000 are arranged continuously. For example, the plurality of isolation slots 3000 also include at least one fifth type slot 3050, which is located between adjacent first intervals G1 and second intervals G2 in the second direction V. For example, in the second direction V, a corner of the light-emitting area 0100 of the first sub-pixel 101 and a corner of the light-emitting area 0100 of the adjacent second sub-pixel 102 are arranged opposite to each other and are far apart. By setting the fifth type slot, the risk of crosstalk between the first sub-pixel and the adjacent second sub-pixel in the second direction can be reduced.

[0085] In some embodiments, such as Figure 2 As shown, in the first direction U, the fifth type groove 3050 includes two opposite ends, such as end 30501 and end 30502. End 30501 and end 30502 are located on both sides of the first interval G1 portion and on both sides of the second interval G2 portion, respectively. For example, the fifth type groove 3050 extends along the first direction U and is strip-shaped, but is not limited thereto.

[0086] With this configuration, the light-emitting functional layer between the light-emitting areas of the first sub-pixel and the adjacent second sub-pixel in the second direction can be thinned or isolated by the fifth type of slot, thereby effectively reducing the risk of crosstalk.

[0087] In some embodiments, such as Figure 2 As shown, in the second direction V, the end 30501 of the fifth type slot 3050 overlaps with the third type slot 3030 and the fourth type slot 3040 located on both sides of the first interval G1, respectively, and the end 30502 of the fifth type slot 3050 overlaps with the third type slot 3030 and the fourth type slot 3040 located on both sides of the first interval G1, respectively. For example, the end 30501 of the fifth type slot 3050 extends beyond the dashed line M1 in a direction away from the first interval G1, and the end 30502 of the fifth type slot 3050 extends beyond the dashed line M2 in a direction away from the first interval G1. Thus, the thinning or blocking effect of the light-emitting functional layer between the first sub-pixel and the adjacent second sub-pixel in the second direction can be further guaranteed.

[0088] Figure 5 This is a partial planar schematic diagram of another display substrate provided for at least one embodiment of the present invention. For example, with... Figure 1 Compared to the display substrate shown, Figure 5 The structures of the isolation portions in the display substrates shown are different, but the other structures are the same. For the similarities, please refer to the relevant descriptions of the above embodiments, which will not be repeated here.

[0089] In some embodiments, such as Figure 5 As shown, the plurality of isolation portions 300 include at least one first isolation groove 330, each first isolation groove 330 surrounding the light-emitting area 0100 of the sub-pixel 100 (e.g., the third sub-pixel). The first isolation groove 330 includes a first bending structure 3310 and a second bending structure 3320 connected to each other. The first bending structure 3310 bends towards the light-emitting area 0100 of the sub-pixel 100 (e.g., the third sub-pixel), and the second bending structure 3320 bends away from the light-emitting area 0100 of the same sub-pixel 100 (e.g., the same third sub-pixel). For example, the first bending structure 3310 and the second bending structure 3320 are connected to each other and have a common portion C. For example, the orthographic projection of the connected first bending structure 3310 and the second bending structure 3320 onto the substrate 01 is "S"-shaped, but not limited thereto.

[0090] By making the first isolation groove have the aforementioned first bend and second bend, the extension path of the first isolation groove can be made longer, which is conducive to increasing the contact area with the light-emitting functional layer of the sub-pixel, thereby enhancing the ability to thin or isolate the light-emitting functional layer.

[0091] In some embodiments, such as Figure 5 As shown, in the first arrangement direction X or the second arrangement direction Y, there is a first isolation groove 330 between the light-emitting areas 0100 of adjacent sub-pixels 100. For example, taking the second sub-pixel 102 and the third sub-pixel 103 adjacent in the first arrangement direction X as an example, the first bending structure 3310 of the first isolation groove 330 bends toward the light-emitting area 0100 of the third sub-pixel 103, and the second bending structure 3320 of the first isolation groove 330 bends toward the light-emitting area 0100 of the second sub-pixel 102.

[0092] In some embodiments, such as Figure 5 As shown, at least one first isolation groove 330 includes a plurality of first sub-isolation grooves 3301 and a plurality of second sub-isolation grooves 3302. For example, four first sub-isolation grooves 3301 are provided circumferentially in the light-emitting area 0100 of the first sub-pixel 101, four second sub-isolation grooves 3302 are provided circumferentially in the light-emitting area 0100 of the second sub-pixel 102, and two first sub-isolation grooves 3301 and two second sub-isolation grooves 3302 are provided circumferentially in the light-emitting area 0100 of the third sub-pixel 103. For example, depending on the shape of the light-emitting area 0100 of the sub-pixel 100, the lengths of the different isolation grooves in their extension direction are different.

[0093] In some embodiments, such as Figure 5 As shown, the four first sub-isolation slots 3301 disposed circumferentially on the first sub-pixel 101 include first sub-isolation slot groups 03301 and second sub-isolation slot groups 03302 disposed at intervals. For example, the first sub-isolation slot groups 03301 and 03302 each include two first sub-isolation slots 3301 symmetrically distributed and interconnected in the second direction V. For example, the distance between each first sub-isolation slot 3301 in the first sub-isolation slot group 03301 and the light-emitting area 0100 of the first sub-pixel 101 is substantially the same. For example, the first sub-isolation slot groups 03301 and 03302 are symmetrically and spaced apart in the first direction U, thereby ensuring continuity between the second electrode of the first sub-pixel and the second electrode of adjacent sub-pixels. For example, in the first direction U, the first sub-isolation trench group 03301 or the second sub-isolation trench group 03302 can be located between the first sub-pixel 101 and the adjacent sub-pixel (e.g., the second sub-pixel 102), thereby thinning or isolating the light-emitting functional layer between them to reduce the risk of crosstalk and simplify the manufacturing process.

[0094] In some embodiments, such as Figure 5 As shown, in the circumferential direction of the second sub-pixel 102, two adjacent second sub-isolation slots 3302 are symmetrically and spaced apart in the first direction U, and two adjacent second sub-isolation slots 3302 are symmetrically distributed in the second direction V. For example, the four second sub-isolation slots 3302 disposed in the circumferential direction of the light-emitting area 0100 of the second sub-pixel 102 are approximately equidistant from the light-emitting area 0100 of the second sub-pixel 102.

[0095] In some embodiments, such as Figure 5 As shown, adjacent first sub-isolation slots 3301 and second sub-isolation slots 3302 in the first direction U are connected to each other to form a third sub-isolation slot group 03303. For example, two third sub-isolation slot groups 03303 are provided in the circumferential direction of the light-emitting area 0100 of the third sub-pixel 103. For example, the two first sub-isolation slots 3301 and two second sub-isolation slots 3302 provided in the circumferential direction of the light-emitting area 0100 of the third sub-pixel 103 are at substantially the same distance from the light-emitting area 0100 of the third sub-pixel 103. Two third sub-isolation slot groups 03303 are provided between adjacent third sub-pixels 103 in the second direction V.

[0096] With this setup, the light-emitting functional layer between adjacent third sub-pixels in the second direction can be thinned or isolated by the third sub-isolation slot group, which can effectively reduce the risk of crosstalk and simplify the manufacturing process.

[0097] In some embodiments, such as Figure 5As shown, a first spacing portion G3 is provided between two adjacent first sub-isolation slots 3301 in the first direction U, and a second spacing portion G4 is provided between two adjacent second sub-isolation slots 3302 in the first direction U. The first spacing portion G3 and the second spacing portion G4 are connected to each other. In the second direction V, a first spacing portion G3 and a second spacing portion G4 are provided between adjacent second sub-pixels 102 and third sub-pixels 103. For example, the interconnected first spacing portion G3 and the second spacing portion G4 can be part of a passage so that the second electrodes 120 of adjacent second sub-pixels 102 and third sub-pixels 103 in the second direction V (see [link to documentation]). Figure 3 The isolation slots 3000 are arranged continuously. For example, the plurality of isolation slots 3000 also includes at least one second isolation slot 340, which is located between adjacent first spacing portions G3 and second spacing portions G4 in the second direction V. For example, in the second direction V, a corner of the light-emitting area of ​​the second sub-pixel 102 and a corner of the light-emitting area of ​​the adjacent third sub-pixel 103 are arranged opposite to each other and are far apart. By providing the second isolation slot, the risk of crosstalk between the second sub-pixel and the adjacent third sub-pixel in the second direction can be reduced.

[0098] In some embodiments, such as Figure 5 As shown, the second isolation groove 340 includes two opposite ends, such as end 3401 and end 3402, in the first direction U. End 3401 and end 3402 are located on both sides of the first spacer G3 and on both sides of the second spacer G4, respectively, in the first direction U. For example, the second isolation groove 340 extends along the first direction U and is strip-shaped, but is not limited thereto.

[0099] With this configuration, the light-emitting functional layer between the light-emitting area of ​​the second sub-pixel and the light-emitting area of ​​the adjacent third sub-pixel in the second direction can be thinned or isolated by the second isolation slot, thereby effectively reducing the risk of crosstalk.

[0100] In some embodiments, such as Figure 5 As shown, in the first direction U, the size of the second isolation groove 340 is larger than the size of the first spacing portion G3 and larger than the size of the second spacing portion G4. This facilitates the thinning or isolation effect of the light-emitting functional layer between the light-emitting areas of the second sub-pixel and the adjacent third sub-pixel in the second direction.

[0101] Figure 6 This is a partial planar schematic diagram of another display substrate provided for at least one embodiment of the present invention. For example, with... Figure 1 Compared to the display substrate shown, Figure 6 The structures of the isolation portions in the display substrates shown are different, but the other structures are the same. For the similarities, please refer to the relevant descriptions of the above embodiments, which will not be repeated here.

[0102] In some embodiments, such as Figure 6 As shown, the plurality of isolation sections 300 include a plurality of first annular isolation grooves 350, and at least one first annular isolation groove 350 is provided circumferentially on the light-emitting area 0100 of each sub-pixel 100 in at least a portion of the sub-pixels 100. For example, the light-emitting area 0100 of each sub-pixel 100 in adjacent sub-pixels 100 is surrounded by the first annular isolation groove 350, so that the light-emitting functional layer 130 between adjacent sub-pixels 100 (see See [link to documentation]) can be isolated through the first annular isolation groove 350. Figure 3 Thinning or partitioning can reduce the risk of crosstalk.

[0103] In some embodiments, such as Figure 6 As shown, each of the first annular isolation grooves 350 includes at least one first notch 3510. For example, the first annular isolation groove 350 may include two notches 3510, but is not limited thereto, and the number of notches 3510 may be determined according to the actual voltage across the second electrode (e.g., the voltage of the second electrode).

[0104] By including at least one first notch in the first annular isolation groove, the first notch can serve as part of a pathway for electrical connection of the second electrodes of adjacent sub-pixels, thereby facilitating the continuous arrangement of the second electrodes.

[0105] In some embodiments, such as Figure 6 As shown, in the first arrangement direction X or the second arrangement direction Y, the first notches 3510 of the first annular isolation grooves 350 in the circumferential direction of the light-emitting areas 0100 of adjacent sub-pixels 100 are staggered with each other. For example, the line connecting the first notches 3510 of the first annular isolation grooves 350 in the circumferential direction of the light-emitting areas 0100 of adjacent sub-pixels 100 is not parallel to the arrangement direction of the adjacent sub-pixels 100, but has an angle. For example, in the first arrangement direction X, the first notches 3510 of the first annular isolation grooves 350 surrounding the light-emitting area 0100 of the second sub-pixel 102 and the first notches 3510 of the first annular isolation grooves 350 surrounding the light-emitting area 0100 of the third sub-pixel 103 are staggered.

[0106] This configuration allows for electrical connection of the second electrodes of adjacent sub-pixels while maximizing the ability to thin or isolate the light-emitting functional layers between adjacent sub-pixels. It also prevents the two first gaps facing each other from causing continuity in the light-emitting functional layers of adjacent sub-pixels, thereby reducing the risk of crosstalk between adjacent sub-pixels.

[0107] In some embodiments, reference Figure 6In the first arrangement direction X, each first notch 3510 of one of the adjacent sub-pixels 100 is located on one side of the light-emitting area 0100 of that sub-pixel 100 in the second arrangement direction Y, and each first notch 3510 of the other adjacent sub-pixel 100 is located on one side of the light-emitting area 0100 of that sub-pixel 100 in the first arrangement direction X. For example, taking the second sub-pixel 102 and the third sub-pixel 103 that are adjacent in the first arrangement direction X as an example, each first notch 3510 of the first annular isolation groove 350 surrounding the light-emitting area 0100 of the second sub-pixel 102 is located on one side of the light-emitting area 0100 of the second sub-pixel 102 in the second arrangement direction Y, and each first notch 3510 of the first annular isolation groove 350 surrounding the light-emitting area 0100 of the third sub-pixel 103 is located on one side of the light-emitting area 0100 of the third sub-pixel 103 in the first arrangement direction X.

[0108] Therefore, while ensuring the continuity of the second electrodes of adjacent sub-pixels, the ability to thin or isolate the light-emitting functional layer between adjacent sub-pixels can be further enhanced, reducing the risk of crosstalk between adjacent sub-pixels.

[0109] In some embodiments, in the second arrangement direction, each first gap of one of the adjacent sub-pixels is located on one side of the light-emitting area of ​​the sub-pixel in the first arrangement direction, and each first gap of the other of the adjacent sub-pixels is located on one side of the light-emitting area of ​​the sub-pixel in the first arrangement direction.

[0110] Figure 7 This is a partial planar schematic diagram of another display substrate provided for at least one embodiment of the present invention. For example, with... Figure 6 Compared to the display substrate shown, Figure 7 The structures of the isolation portions in the display substrates shown are different, but the other structures are the same. For the similarities, please refer to the relevant descriptions of the above embodiments, which will not be repeated here.

[0111] In some embodiments, such as Figure 7 As shown, the plurality of isolation grooves 3000 also includes at least one second annular isolation groove 360, which is spaced apart from the first annular isolation groove 350 and surrounds the first annular isolation groove 350. For example, at least a portion of the light-emitting area 0100 of the sub-pixel 100 has both the first annular isolation groove 350 and the second annular isolation groove 360 ​​in its circumferential direction. Figure 7 The third sub-pixel 103 shown is not limited to this. For example, the second annular isolation groove 360 ​​includes at least one second notch 3520. For example, the connection path between the first notch 3510 and the second notch 3520 can serve as the second electrode 120 between the sub-pixel 100 (such as the third sub-pixel 103) and the adjacent sub-pixel 100 (see [link to documentation]). Figure 3 It is part of the pathway for electrical connection.

[0112] By setting a second annular isolation groove, the continuity of the second electrodes of adjacent sub-pixels can be ensured while the light-emitting functional layer between the light-emitting areas of adjacent sub-pixels can be effectively isolated and thinned, thereby effectively reducing the risk of crosstalk.

[0113] In some embodiments, such as Figure 7 As shown, the second notch 3520 can be located on the extension line of the diagonal of the light-emitting area 0100 of the sub-pixel 100 surrounded by the second annular isolation groove 360. For example, the second notch 3520 can be disposed opposite to a corner of the light-emitting area 0100 of the sub-pixel 100.

[0114] This arrangement helps to stagger the second notch with the first notch, preventing the first and second notches from being directly opposite each other, thus ensuring the continuity of the light-emitting functional layer of the sub-pixel and reducing the risk of crosstalk.

[0115] In some embodiments, such as Figure 7 As shown, the plurality of isolation portions 300 also include at least one first isolation member 370. The first isolation member 370 is connected to the second annular isolation groove 360, and the first isolation member 370 extends along the extension of the diagonal of the light-emitting area 0100 of the sub-pixel 100 (such as the third sub-pixel 103) surrounded by the second annular isolation groove 360. For example, the first isolation member 370 may be opposite to and spaced apart from a second notch 3520 of the second annular isolation groove 360. For example, the first isolation member 370 may be located in four sub-pixels 100 (such as the third sub-pixel 103). Figure 7 The light-emitting areas 0100 of the first sub-pixel 101, the second sub-pixel 102, and the two third sub-pixels 103 shown are located between the corners of each other. For example, the first spacer 370 can be strip-shaped, but is not limited thereto.

[0116] By setting the aforementioned first isolation element, it is possible to prevent the light-emitting functional layer from being continuously set at two closely spaced first gaps (or the first gap and the second gap), so as to further thin or isolate the light-emitting functional layer between the light-emitting areas of adjacent sub-pixels.

[0117] Figure 8 This is a partial planar schematic diagram of another display substrate provided for at least one embodiment of the present invention. For example, with... Figure 7 Compared to the display substrate shown, Figure 8 The structures of the isolation portions in the display substrates shown are different, but the other structures are the same. For the similarities, please refer to the relevant descriptions of the above embodiments, which will not be repeated here.

[0118] In some embodiments, such as Figure 8As shown, the plurality of isolation portions 300 include a plurality of first annular isolation grooves 350, and at least one first annular isolation groove 350 is provided circumferentially on the light-emitting area 0100 of each sub-pixel 100. The first annular isolation groove 350 includes at least one first notch 3510. For example, the plurality of isolation portions 300 also include at least one second isolation member 380, at least a portion of which is located between the first annular isolation grooves 350 surrounding the light-emitting area 0100 of adjacent sub-pixels 100. For example, the second isolation member 380 includes a plurality of first sub-isolation members 3810, which extend along a first arrangement direction X or a second arrangement direction Y. For example, the orthographic projection of the first sub-isolation member 3810 on the substrate 01 is generally rectangular, and is disposed adjacent to either edge of the corner of the light-emitting area 0100 of the sub-pixel 100. For example, a first sub-isolation member 3810 is provided between the first annular isolation grooves 350 in the circumferential direction of the light-emitting area 0100 of adjacent sub-pixels 100.

[0119] By setting the first sub-isolation element, it is beneficial to prevent the light-emitting functional layers of adjacent sub-pixels from being connected through the channel between the adjacent sub-pixels without being thinned or separated by the first annular isolation groove, thereby further reducing the risk of crosstalk between adjacent sub-pixels.

[0120] In some embodiments, such as Figure 8 As shown, at least some of the adjacent first sub-isolators 3810 are connected to each other. For example, the orthographic projection of the two connected first sub-isolators 3810 on the substrate 01 is "L" shaped, and the two first sub-isolators 3810 surround a corner of the light-emitting area 0100 of the sub-pixel 100, thereby helping to reduce the crosstalk effect between sub-pixels 100 whose corners of the light-emitting area 0100 are opposite each other.

[0121] In some embodiments, such as Figure 8As shown, the second isolator 380 further includes at least one second sub-isolator 3820, which is located between the opposite corners of the light-emitting areas 0100 of adjacent sub-pixels 100 in the first direction U or the second direction V, and is connected to at least one first sub-isolator 3810. For example, the second sub-isolator 3820 is located between the adjacent corners of the light-emitting areas 0100 of four sub-pixels 100 (such as two adjacent third sub-pixels 103 in the first direction U, and adjacent first sub-pixels 101 and second sub-pixels 102 in the second direction V). For example, the second sub-isolator 3820 may extend along the first direction U, but is not limited thereto. For example, two first sub-isolators 3810 connected to each other are connected at their connection positions to one end of the second sub-isolator 3820, and two other first sub-isolators 3810 connected to each other are connected at their connection positions to the other end of the second sub-isolator 3820, so that the second sub-isolator 3820 is connected to all four first sub-isolators 3810.

[0122] By setting a second sub-isolator, the light-emitting functional layers of adjacent sub-pixels that are far apart can be thinned or separated, reducing the risk that the light-emitting functional layers of adjacent sub-pixels will be electrically connected through the channel between them.

[0123] Figure 9 This is a partial planar schematic diagram of another display substrate provided for at least one embodiment of the present invention. For example, with... Figure 6 Compared to the display substrate shown, Figure 9 The structure of the first annular isolation groove in the display substrate shown is different, but the rest of the structure is the same. For the similarities, please refer to the relevant descriptions of the above embodiments, which will not be repeated here.

[0124] In some embodiments, such as Figure 9 As shown, the first annular isolation groove 350 is closed. For example, the first annular isolation groove 350 is located on the substrate 01 (see [reference]). Figure 1 The orthographic projection on the sub-pixel 100 is a closed ring. For example, the first annular isolation groove 350 surrounds the light-emitting area 0100 of the sub-pixel 100. For example, the second electrode 120 of the sub-pixel 100 (see...) Figure 3 The light-emitting functional layer 130 of the sub-pixel 100 is continuously disposed at the first annular isolation groove 350 and electrically connected to the second electrode 120 of the adjacent sub-pixel 100. For example, the light-emitting functional layer 130 of the sub-pixel 100 is thinned or isolated at the first annular isolation groove 350, thereby effectively reducing the risk of crosstalk.

[0125] In some embodiments, reference Figure 4 and Figure 9The sidewall of the first annular isolation groove 350 has a slope angle α with the plane parallel to the substrate 01, and the slope angle α is 70~80 degrees. For example, the slope angle α can be 70~75 degrees, 72~78 degrees, 74~76 degrees, 77~80 degrees or other values ​​among 70~80 degrees, and the embodiments of this utility model are not limited in this regard. For example, the first annular isolation groove 350 is perpendicular to the substrate 01 in the direction (see See Figure 3 The size of the light-emitting functional layer 130 on the third-party Z) is 1 to 2 times the thickness of the light-emitting functional layer 130 of the sub-pixel 100, such as 1.2 to 1.4 times, 1.3 to 1.5 times, 1.5 to 1.7 times, 1.6 to 1.9 times or other values ​​among 1 to 2 times. The embodiments of this utility model do not limit this.

[0126] By setting the slope angle and the dimensions of the first annular isolation groove in the third direction within the above range, it is beneficial to ensure the thinning or isolation effect of the light-emitting functional layer of the sub-pixel at the first annular isolation groove, and to ensure that the second electrode of the sub-pixel is continuously disposed at the first annular isolation groove.

[0127] Figure 10 This is a partial planar schematic diagram of another display substrate provided for at least one embodiment of the present invention. For example, with... Figure 6 Compared to the display substrate shown, Figure 10 The structures of the isolation portions in the display substrates shown are different, but the other structures are the same. For the similarities, please refer to the relevant descriptions of the above embodiments, which will not be repeated here.

[0128] In some embodiments, such as Figure 10 As shown, the plurality of isolation sections 300 include a plurality of spaced-apart first strip-shaped isolation structures 3910 and a plurality of spaced-apart second strip-shaped isolation structures 3920. Each first strip-shaped isolation structure 3910 is located between adjacent sub-pixels 100 in the first arrangement direction X or the second arrangement direction Y, and the extension direction of the first strip-shaped isolation structure 3910 intersects with the arrangement direction of the adjacent sub-pixels 100. For example, the first strip-shaped isolation structure 3910 extends along the first arrangement direction X or the second arrangement direction Y. For example, a first strip-shaped isolation structure 3910 is provided between adjacent sub-pixels 100 in the first arrangement direction X. For example, a first strip-shaped isolation structure 3910 is provided between adjacent sub-pixels 100 in the second arrangement direction Y. For example, at least some of the sub-pixels 100 have their light-emitting areas 0100 surrounded by four first strip-shaped isolation structures 3910, and each of the four edges of the light-emitting area 0100 of the sub-pixel 100 has a first strip-shaped isolation structure 3910 disposed opposite to it. For example, the first strip-shaped isolation structure 3910 may be located in the pixel-defining layer 200 (see [link]). Figure 3 ( ) and is an isolation trough, but not limited to this.

[0129] In some embodiments, such as Figure 10 As shown, the second strip-shaped isolation structure 3920 is located between the opposite corners of the light-emitting areas 0100 of adjacent sub-pixels 100 in the first direction U or the second direction V. For example, the second strip-shaped isolation structure 3920 extends along the first direction U or the second direction V. For example, the orthographic projection of the second strip-shaped isolation structure 3920 on the substrate is strip-shaped. For example, at least some of the sub-pixels 100 have their light-emitting areas 0100 surrounded by four second strip-shaped isolation structures 3920, and each of the four corners of the light-emitting area 0100 of the sub-pixel 100 has a second strip-shaped isolation structure 3920 disposed opposite to it. For example, the second strip-shaped isolation structure 3920 may be located in the pixel defining layer 200 (see [link to pixel definition]). Figure 3 In the above-mentioned first and second strip-shaped isolation structures, the light-emitting functional layer between the light-emitting areas of adjacent sub-pixels can be thinned or separated, thereby reducing the risk of crosstalk.

[0130] In some embodiments, such as Figure 10 As shown, the second strip-shaped isolation structure 3920 is connected to at least one first strip-shaped isolation structure 3910. For example, for the same sub-pixel 100, one end of the first strip-shaped isolation structure 3910 disposed in the circumferential direction of its light-emitting area 0100 is connected to one of the second strip-shaped isolation structures 3920 located on both sides thereon to form an integral structure. For example, two adjacent first strip-shaped isolation structures 3910 extending in the same direction are connected to a second strip-shaped isolation structure 3920, thereby constituting a repeating unit E. For example, in the circumferential direction of the light-emitting area 0100 of the same sub-pixel 100, each second strip-shaped isolation structure 3920 has a gap region G5 between it and at least one first strip-shaped isolation structure 3910, and in the first arrangement direction X or the second arrangement direction Y, the gap region G5 is a passage between at least some of the adjacent sub-pixels 100, thereby allowing the second electrode 120 of the adjacent sub-pixels 100 (see See Figure 3 Electrical connection.

[0131] This configuration reduces the risk of crosstalk between adjacent sub-pixels while ensuring continuity between the second electrodes of adjacent sub-pixels.

[0132] In some embodiments, each end of the first strip-shaped isolation structure can be connected to a second strip-shaped isolation structure. For example, the second strip-shaped isolation structure can be connected to only one of the first strip-shaped isolation structures. The embodiments of this invention do not limit the connection method between the first and second strip-shaped isolation structures.

[0133] Figure 11 This is a schematic block diagram of a display device according to another embodiment of the present invention. Figure 11 As shown, an embodiment of the present invention provides a display device including any of the above-mentioned display substrates.

[0134] For example, a display device may or may not have a color filter layer.

[0135] For example, the display device also includes a cover plate located on the light-emitting side of the array substrate.

[0136] For example, the display device can be an organic light-emitting diode display device or other display device, as well as any product or component with display function, such as a television, digital camera, mobile phone, watch, tablet computer, laptop computer, or navigator that includes the display device. This embodiment is not limited to this.

[0137] The following points need to be explained:

[0138] (1) The accompanying drawings of the embodiments of this utility model only involve the structures involved in the embodiments of this utility model. Other structures can be referred to the general design.

[0139] (2) Where there is no conflict, features of the same embodiment and different embodiments of the present invention can be combined with each other.

[0140] The above description is merely an exemplary embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model. The scope of protection of the present utility model is determined by the appended claims.

Claims

1. A display substrate, characterized in that, include: Substrate; A pixel defining layer is located on one side of the substrate. Multiple sub-pixels, each sub-pixel including a pixel opening located in the pixel defining layer, a light-emitting functional layer, and a first electrode and a second electrode located on both sides of the light-emitting functional layer along a direction perpendicular to the substrate. The pixel opening of each of the sub-pixels exposes at least a portion of the first electrode of each of the sub-pixels to define the light-emitting area of ​​the sub-pixel; The display substrate further includes an isolation structure comprising multiple isolation portions. At least a portion of the light-emitting functional layer of each sub-pixel located at the isolation portion has a thickness less than the thickness of the portion overlapping with the first electrode. The isolation structure includes a pathway located between adjacent sub-pixels in at least a portion of the sub-pixels, and the second electrodes of the adjacent sub-pixels are continuously disposed through the pathway.

2. The display substrate according to claim 1, characterized in that, The pixel defining layer includes a pixel defining portion surrounding each of the pixel openings, the isolation structure is located in the pixel defining layer, and the plurality of isolation portions include at least one isolation groove.

3. The display substrate according to claim 1, characterized in that, The plurality of sub-pixels are arranged in an array along a first arrangement direction and a second arrangement direction to form a plurality of sub-pixel rows arranged along the first arrangement direction and a plurality of sub-pixel columns arranged along the second arrangement direction. The first arrangement direction and the second arrangement direction intersect each other and are both parallel to the substrate.

4. The display substrate according to claim 3, characterized in that, The plurality of isolation portions include at least one group of isolation slots, each group of isolation slots being at least partially located between the light-emitting areas of the adjacent sub-pixels, and each group of isolation slots comprising two spaced-apart isolation slots, the interval between the two isolation slots being part of the path. In the arrangement direction of the adjacent sub-pixels, one of the two isolation slots has a first bending portion that bends toward the light-emitting area of ​​one of the adjacent sub-pixels, and the other of the two isolation slots has a second bending portion that bends toward the light-emitting area of ​​the other of the adjacent sub-pixels.

5. The display substrate according to claim 4, characterized in that, One end of the first bend is located in the area enclosed by the second bend, and one end of the second bend is located in the area enclosed by the first bend.

6. The display substrate according to claim 4 or 5, characterized in that, The orthographic projection of either the first bend or the second bend onto the substrate is U-shaped.

7. The display substrate according to claim 4 or 5, characterized in that, The plurality of sub-pixels includes a plurality of first sub-pixels, a plurality of second sub-pixels, and a plurality of third sub-pixels; the plurality of isolation portions includes a plurality of first-type slots, a plurality of second-type slots, a plurality of third-type slots, and a plurality of fourth-type slots. Each first sub-pixel has four first-type slots in the circumferential direction of its light-emitting area, each second sub-pixel has four second-type slots in the circumferential direction of its light-emitting area, and each third sub-pixel has two third-type slots and two fourth-type slots in the circumferential direction of its light-emitting area.

8. The display substrate according to claim 7, characterized in that, In the first arrangement direction or the second arrangement direction The isolation slot group between the first sub-pixel and the light-emitting area of ​​its adjacent sub-pixels includes a first isolation slot group, which includes a first type slot and a third type slot, and the first type slot is closer to the light-emitting area of ​​the first sub-pixel than the third type slot.

9. The display substrate according to claim 8, characterized in that, In the first arrangement direction or the second arrangement direction The isolation slot group between the second sub-pixel and the light-emitting area of ​​its adjacent sub-pixel includes a second isolation slot group, which includes a second type slot and the fourth type slot, and the second type slot is closer to the light-emitting area of ​​the second sub-pixel than the fourth type slot.

10. The display substrate according to claim 7, characterized in that, The first type slots and the second type slots adjacent to each other in the first direction are connected to each other, and the first type slots adjacent to each other in the second direction are connected to each other. The first direction is the direction in which the first arrangement direction is rotated counterclockwise by a predetermined angle, and the second direction is the direction in which the second arrangement direction is rotated counterclockwise by the predetermined angle.

11. The display substrate according to claim 10, characterized in that, In the first direction, adjacent third-type slots are spaced by a first interval, and adjacent fourth-type slots are spaced by a second interval, wherein the first interval and the second interval are connected to each other. The plurality of isolation slots also include at least one fifth type slot, which is located between adjacent first and second intervals in the second direction.

12. The display substrate according to claim 11, characterized in that, In the first direction, the fifth type of slot includes two ends opposite to each other, and the two ends are respectively located on both sides of the first interval and on both sides of the second interval.

13. The display substrate according to claim 3, characterized in that, The plurality of isolation portions include at least one first isolation groove, each first isolation groove surrounding the light-emitting area of ​​the sub-pixel. The first isolation groove includes a first bending structure and a second bending structure connected to each other. The first bending structure bends toward the light-emitting area of ​​the sub-pixel, and the second bending structure bends away from the light-emitting area of ​​the sub-pixel.

14. The display substrate according to claim 13, characterized in that, The plurality of sub-pixels includes a plurality of first sub-pixels, a plurality of second sub-pixels, and a plurality of third sub-pixels. In either the first or second arrangement direction, a first isolation groove is provided between the light-emitting areas of adjacent sub-pixels. The at least one first isolation slot includes a plurality of first sub-isolation slots and a plurality of second sub-isolation slots. Each first sub-pixel has four first sub-isolation slots arranged in the circumferential direction of its light-emitting area, each second sub-pixel has four second sub-isolation slots arranged in the circumferential direction of its light-emitting area, and each third sub-pixel has two first sub-isolation slots and two second sub-isolation slots arranged in the circumferential direction of its light-emitting area.

15. The display substrate according to claim 14, characterized in that, The four first sub-isolation slots disposed in the circumferential direction of the first sub-pixel include a first sub-isolation slot group and a second sub-isolation slot group disposed at intervals. The first sub-isolation slot group and the second sub-isolation slot group are symmetrically distributed and spaced apart in a first direction. The first sub-isolation slot group and the second sub-isolation slot group each include two first sub-isolation slots that are symmetrically distributed and connected to each other in a second direction. The first direction is the direction in which the first arrangement direction is rotated counterclockwise by a predetermined angle, and the second direction is the direction in which the second arrangement direction is rotated counterclockwise by the predetermined angle.

16. The display substrate according to claim 15, characterized in that, In the circumferential direction of the second sub-pixel, The two adjacent second sub-isolation slots in the first direction are symmetrically distributed and spaced apart, and the two adjacent second sub-isolation slots in the second direction are symmetrically distributed.

17. The display substrate according to claim 16, characterized in that, The first and second sub-isolation slots, which are adjacent in the first direction, are connected to each other to form a third sub-isolation slot group. The third sub-pixel has two third sub-isolation slot groups arranged circumferentially in the light-emitting area.

18. The display substrate according to any one of claims 15-17, characterized in that, A first gap is provided between two adjacent first sub-isolation slots in a first direction, and a second gap is provided between two adjacent second sub-isolation slots in the first direction. The first gap and the second gap are in communication with each other. In the second direction, there is a first spacing portion and a second spacing portion between adjacent second and third sub-pixels. The plurality of isolation slots further includes at least one second isolation slot, which is located between the first spacer and the second spacer.

19. The display substrate according to claim 18, characterized in that, The second isolation groove includes two ends that are opposite to each other in the first direction. In the first direction, the two ends of the second isolation groove are respectively located on both sides of the first interval portion and on both sides of the second interval portion.

20. The display substrate according to claim 3, characterized in that, The plurality of isolation portions include a plurality of first annular isolation grooves, and at least one first annular isolation groove is provided in the circumferential direction of the light-emitting area of ​​each sub-pixel in the at least some sub-pixels.

21. The display substrate according to claim 20, characterized in that, Each of the first annular isolation grooves includes at least one first notch.

22. The display substrate according to claim 21, characterized in that, In the first arrangement direction or the second arrangement direction, the first notches of the first annular isolation grooves located in the circumferential direction of the light-emitting area of ​​the adjacent sub-pixels are staggered with each other.

23. The display substrate according to claim 21 or 22, characterized in that, In the first arrangement direction, each first gap of one of the adjacent sub-pixels is located on one side of the light-emitting area of ​​that sub-pixel in the second arrangement direction, and each first gap of the other of the adjacent sub-pixels is located on one side of the light-emitting area of ​​that sub-pixel in the first arrangement direction.

24. The display substrate according to any one of claims 20-23, characterized in that, The plurality of isolation grooves further include at least one second annular isolation groove, the second annular isolation groove being spaced apart from the first annular isolation groove and surrounding the first annular isolation groove, the second annular isolation groove including at least one second notch.

25. The display substrate according to claim 24, characterized in that, The second gap is located on the extension of the diagonal of the light-emitting area of ​​the sub-pixel surrounded by the second annular isolation groove.

26. The display substrate according to claim 25, characterized in that, The plurality of isolation portions further include at least one first isolation member, which is connected to the second annular isolation groove, and the first isolation member extends along the extension direction of the diagonal of the light-emitting area of ​​the sub-pixel surrounded by the second annular isolation groove.

27. The display substrate according to any one of claims 20-23, characterized in that, The plurality of isolation portions further include at least one second isolation member, at least a portion of which is located between the first annular isolation grooves surrounding the light-emitting areas of the adjacent sub-pixels. The second isolation member includes a plurality of first sub-isolation members, which extend along the first arrangement direction or the second arrangement direction, and are located between first annular isolation grooves in the circumferential direction of adjacent sub-pixels in the first arrangement direction or the second arrangement direction.

28. The display substrate according to claim 27, characterized in that, At least some of the first sub-isolators are connected to each other.

29. The display substrate according to claim 27 or 28, characterized in that, The second isolator further includes at least one second sub-isolator, which is located between the corners of the light-emitting areas of adjacent sub-pixels in the first or second direction, and the second sub-isolator is connected to at least one first sub-isolator. The first direction is the direction in which the first arrangement direction is rotated counterclockwise by a predetermined angle, and the second direction is the direction in which the second arrangement direction is rotated counterclockwise by the predetermined angle.

30. The display substrate according to claim 3, characterized in that, The plurality of isolation sections include a plurality of first strip-shaped isolation structures spaced apart and a plurality of second strip-shaped isolation structures spaced apart. The first strip-shaped isolation structure is located between adjacent sub-pixels in the first arrangement direction or the second arrangement direction, and the extension direction of the first strip-shaped isolation structure intersects with the arrangement direction of the adjacent sub-pixels. The second strip-shaped isolation structure is located between the corners of the light-emitting areas of adjacent sub-pixels in the first direction or the second direction, where the first direction is the direction in which the first arrangement direction is rotated counterclockwise by a predetermined angle, and the second direction is the direction in which the second arrangement direction is rotated counterclockwise by the predetermined angle.

31. The display substrate according to claim 30, characterized in that, The second strip-shaped isolation structure is connected to at least one of the first strip-shaped isolation structures. In the circumferential direction of the light-emitting area of ​​the same sub-pixel, there is a gap between each of the second strip isolation structures and at least one of the first strip isolation structures, and in the first arrangement direction or the second arrangement direction, the gap at least partially represents the pathway between adjacent sub-pixels in the sub-pixel.

32. A display device, characterized in that, Includes the display substrate as described in any one of claims 1 to 31.

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