Display substrate and display device

Abstract

A display substrate and a display device. The display substrate comprises a plurality of sub-pixels 10 and a pixel definition pattern 400. The sub-pixel 10 comprises a light emitting element 100, the light emitting element 100 comprises a light emitting region 101, the light emitting element 100 comprises a light emitting functional layer 130, a first electrode 110 and a second electrode 120, the second electrode 120 covers the light emitting region 101 of each sub-pixel 10. The pixel definition pattern 400 comprises a plurality of first openings 410, one sub-pixel 10 corresponds to at least one first opening 410, the light emitting element 100 of the sub-pixel 10 is at least partially located in the first opening 410 corresponding to the sub-pixel 10, and the first opening 410 is configured to expose the first electrode 110; the pixel definition pattern 400 further comprises a plurality of second openings 420, the plurality of second openings 420 are located between at least part of the sub-pixels 10, at least one layer in the light emitting functional layer 130 and at least part of the second electrode 120 are disconnected at the second opening 420, which is conducive to reducing the crosstalk generated between adjacent sub-pixels 10.

Description

Technical Field

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

[0002] With the development of display technology, users have increasingly higher requirements for the lifespan and power consumption of display devices. A tandem organic light-emitting display device improves the lifespan and brightness of the light-emitting device and reduces power consumption by adding at least one light-emitting layer and a charge-generating layer to the organic light-emitting device. As a result, this light-emitting device can greatly meet users' requirements for the lifespan and power consumption of display devices. Summary of the Invention

[0003] This disclosure provides a display substrate and a display device.

[0004] In this embodiment, the display substrate includes a substrate, a plurality of sub-pixels, and a pixel defining pattern. The plurality of sub-pixels are located on the substrate. Each sub-pixel, at least a portion of which includes a light-emitting element, comprises a light-emitting region, a light-emitting functional layer, and a first electrode and a second electrode located on opposite sides of the light-emitting functional layer along a direction perpendicular to the substrate. The first electrode is located between the light-emitting functional layer and the substrate, and the light-emitting functional layer comprises a plurality of film layers. The second electrode covers the light-emitting region of each sub-pixel. The pixel defining pattern is located between the second electrode and the substrate, and on the side of the first electrode away from the substrate. The pixel defining pattern includes a plurality of first openings, with at least one first opening corresponding to each sub-pixel. At least a portion of the light-emitting element of the sub-pixel is located in the first opening corresponding to the sub-pixel, and the first opening is configured to expose the first electrode. The pixel defining pattern also includes a plurality of second openings located between at least a portion of the sub-pixels. At least one layer of the light-emitting functional layer and at least a portion of the second electrode are disconnected at the second openings.

[0005] For example, according to an embodiment of this disclosure, at least one isolation portion is provided in each second opening, and at least one layer of the light-emitting functional layer and at least a portion of the second electrode are disconnected at the isolation portion.

[0006] For example, according to an embodiment of this disclosure, a gap is provided between the orthographic projection of a portion of the edge of the isolation portion on the substrate and the orthographic projection of the edge of the second opening on the substrate.

[0007] For example, according to an embodiment of this disclosure, the distance between the two edges of the light-emitting areas of the sub-pixels located on both sides of the isolation portion in the extension direction perpendicular to the isolation portion and the edge of the isolation portion exposed by the second opening is different.

[0008] For example, according to an embodiment of this disclosure, at least one second opening is provided around the light-emitting area of ​​at least one sub-pixel.

[0009] For example, according to an embodiment of this disclosure, the portion of the second electrode surrounding the second opening includes a closed ring structure.

[0010] For example, according to an embodiment of this disclosure, the second electrode overlapping the light-emitting area of ​​the sub-pixel and the second electrode located at the second opening away from the light-emitting area are a continuous structure.

[0011] For example, according to an embodiment of this disclosure, the second electrodes of the sub-pixels located on both sides of the isolation portion in the extension direction perpendicular to the isolation portion are connected at a position outside the second opening.

[0012] For example, according to an embodiment of this disclosure, the second opening surrounding the light-emitting area of ​​at least one sub-pixel is a non-closed ring structure.

[0013] For example, according to an embodiment of this disclosure, the shape of the light-emitting area of ​​at least one sub-pixel includes a polygon, and each side of the polygon is provided with a second opening on the side away from the center of the light-emitting area.

[0014] For example, according to an embodiment of this disclosure, the boundary of the second opening includes a portion whose extension direction intersects both the row direction and the column direction.

[0015] For example, according to an embodiment of this disclosure, the edge of the second opening includes a portion whose extension direction is parallel to one of the row direction and the column direction.

[0016] For example, according to an embodiment of this disclosure, the plurality of sub-pixels includes a plurality of first color sub-pixels, a plurality of second color sub-pixels, and a plurality of third color sub-pixels. The plurality of sub-pixels are arranged as a plurality of first sub-pixel groups and a plurality of second sub-pixel groups alternately arranged along a first direction. Each first sub-pixel group includes a first color sub-pixel and a second color sub-pixel alternately arranged along a second direction. Each second sub-pixel group includes the third color sub-pixel arranged along the second direction. The first direction intersects the second direction.

[0017] For example, according to an embodiment of this disclosure, the second opening includes a non-closed annular first opening portion surrounding at least one first color sub-pixel, the non-closed annular first opening portion being provided with a first notch, the first notch being disposed opposite to at least one of the edges and corners of the first color sub-pixel.

[0018] For example, according to an embodiment of this disclosure, the second opening includes a non-closed annular second opening portion surrounding at least one second color sub-pixel, the non-closed annular second opening portion being provided with a second notch, the second notch being disposed opposite to at least one of the edges and corners of the second color sub-pixel.

[0019] For example, according to an embodiment of this disclosure, the second opening includes a non-closed annular third opening portion surrounding at least one third color sub-pixel, the non-closed annular third opening portion being provided with a third notch, the third notch being disposed opposite to at least one of the edges and corners of the third color sub-pixel.

[0020] For example, according to an embodiment of this disclosure, the first opening is located between the first color sub-pixel and the third color sub-pixel that are arranged adjacently, or the first opening is located between the first color sub-pixel and the second color sub-pixel that are arranged adjacently.

[0021] For example, according to an embodiment of this disclosure, the second opening is located between the second color sub-pixel and the third color sub-pixel that are arranged adjacently, or the second opening is located between the first color sub-pixel and the second color sub-pixel that are arranged adjacently.

[0022] For example, according to an embodiment of this disclosure, the third opening is located between adjacent second color sub-pixels and the third color sub-pixels, or the second opening is located between adjacent first color sub-pixels and the third color sub-pixels.

[0023] For example, according to an embodiment of this disclosure, the size of the first notch is different from the size of the second notch.

[0024] For example, according to an embodiment of this disclosure, the first color sub-pixel and the second color sub-pixel include an adjacent first opening and a second opening, the minimum distance between the adjacent first opening and the second opening is a first interval distance, the maximum interval distance around the first opening of the first color sub-pixel in the arrangement direction of the adjacent first opening and the second opening is a second interval distance, and the maximum interval distance around the second opening of the second color sub-pixel in the arrangement direction of the adjacent first opening and the second opening is a third interval distance, and both the second interval distance and the third interval distance are greater than the first interval distance.

[0025] For example, according to an embodiment of this disclosure, the display substrate further includes an insulating layer located between the pixel defining pattern and the substrate, the isolation portion is located on the surface of the insulating layer away from the substrate, and the insulating layer is disposed in the second opening at a position other than the isolation portion.

[0026] For example, according to an embodiment of this disclosure, at least one film layer of the light-emitting functional layer includes a charge-generating layer. The light-emitting functional layer includes a first light-emitting layer, the charge-generating layer, and a second light-emitting layer stacked together. The charge-generating layer is located between the first light-emitting layer and the second light-emitting layer, and the charge-generating layer is broken at the edge of the isolation portion.

[0027] Another embodiment of this disclosure provides a display device including any of the above-described display substrates. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings of the embodiments will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this disclosure and are not intended to limit this disclosure.

[0029] Figures 1-3 This is a partial planar structure schematic diagram of a display substrate provided according to an embodiment of the present disclosure.

[0030] Figure 4A For along Figure 1 A schematic diagram of the local cross-section structure intercepted by line AA'.

[0031] Figures 4B-4D This is a partial cross-sectional structural diagram including an isolation section provided according to different examples of embodiments of the present disclosure.

[0032] Figure 5 In order to be in Figure 4C A schematic diagram of a structure in which a pixel-defined pattern is set on the isolation section.

[0033] Figure 6 for Figure 1 A schematic enlarged view of the luminous region of a first color sub-pixel is shown.

[0034] Figures 7-8 This is a partial planar structure schematic diagram of another display substrate provided according to an embodiment of the present disclosure.

[0035] Figures 9-10 This is a partial planar structure schematic diagram of another display substrate provided according to an embodiment of the present disclosure.

[0036] Figures 11-12 This is a partial planar structure schematic diagram of another display substrate provided according to an embodiment of the present disclosure.

[0037] Figures 13A-13B This is a partial planar structure schematic diagram of another display substrate provided according to an embodiment of the present disclosure.

[0038] Figure 14A This is a partial planar structure schematic diagram of another display substrate provided according to an embodiment of the present disclosure.

[0039] Figure 14B for Figure 14A The image shown is a partial enlarged view of the display substrate.

[0040] Figures 15-16 This is a partial planar structure schematic diagram of another display substrate provided according to an embodiment of the present disclosure.

[0041] Figures 17-18 This is a partial planar structure schematic diagram of another display substrate provided according to an embodiment of the present disclosure.

[0042] Figure 19 This is a schematic block diagram of a display device provided according to another embodiment of the present disclosure. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. Based on the described embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0044] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as “comprising” or “including” mean that an element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects.

[0045] The features such as "parallel," "perpendicular," and "identical" used in the embodiments of this disclosure include features in the strict sense of "parallel," "perpendicular," and "identical," as well as cases where "approximately parallel," "approximately perpendicular," and "approximately identical" include a certain degree of error. Taking into account measurement and errors associated with the measurement of a specific quantity (e.g., limitations of the measurement system), they represent 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 said value. Unless otherwise specified in the following embodiments of this disclosure, 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" means one or more, and "more" means at least two.

[0046] In their research, the inventors of this application discovered that the light-emitting functional layer of a light-emitting element can include multiple layers of light-emitting layers stacked together. At least two of these layers have a charge generation layer (CGL) between them. The charge generation layer has high conductivity. When the charge generation layer is a continuous film layer, the charge generation layers of adjacent light-emitting elements are continuous, leading to lateral charge migration. This causes spectral crosstalk in the display substrate at low grayscale levels. For example, it can easily cause crosstalk between adjacent sub-pixels, resulting in color shift in the display substrate. Furthermore, the charge generation layer can easily cause crosstalk between sub-pixels of different colors at low brightness, leading to low grayscale color shift. Additionally, when the second electrode in the display substrate is a continuous film layer, lateral charge migration also occurs, causing spectral crosstalk in the display substrate at low grayscale levels, resulting in color unevenness and significantly affecting the uniformity of the display product.

[0047] This disclosure provides a display substrate and a display device. The display substrate includes a substrate and a plurality of sub-pixels located on the substrate. Each sub-pixel, at least some of which are sub-pixels, includes a light-emitting element. The light-emitting element includes a light-emitting region, 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 first electrode is located between the light-emitting functional layer and the substrate. The light-emitting functional layer includes a plurality of film layers. An isolation portion is provided between at least two adjacent sub-pixels. At least one layer of the light-emitting functional layer and at least a portion of the second electrode are disconnected at the edge of the isolation portion. The second electrodes of adjacent sub-pixels are at least partially continuous to form a mesh-like pathway. The length of the orthographic projection of the second electrode of the at least some sub-pixels on the substrate in one direction is greater than the sum of the dimensions of the orthographic projections of the light-emitting regions of the sub-pixels arranged along that direction on the substrate. The mesh-like pathway includes a plurality of intersecting pathways. At least one pathway is a pathway with unevenly distributed width. The width of the portion of the pathway overlapping with the light-emitting region is greater than the width of the portion overlapping with at least some locations outside the light-emitting region.

[0048] The isolation portion provided in the display substrate of this disclosure isolates at least one layer of the light-emitting functional layer and at least a portion of the second electrode. By setting the shape of the isolation portion, the second electrode forms a mesh-like path. The width of the mesh-like path at the position corresponding to the light-emitting area is set to improve the matching relationship between the isolation portion and the sub-pixel arrangement. This reduces crosstalk between adjacent sub-pixels while improving the conduction effect of the second electrode, and ensures that the resistance of the second electrode does not increase. This helps to avoid excessive power consumption and brightness uniformity problems in the display substrate.

[0049] This disclosure provides a display substrate, including: a substrate; a plurality of sub-pixels located on the substrate, each sub-pixel including at least a portion of the sub-pixels including a light-emitting element, the light-emitting element including a light-emitting region, the light-emitting element including 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 first electrode being located between the light-emitting functional layer and the substrate, the light-emitting functional layer including a plurality of film layers. An isolation portion is provided between at least two adjacent sub-pixels. At least one layer of the light-emitting functional layer and at least a portion of the second electrode are disconnected at the edge of the isolation portion, and at least a portion of the second electrodes of adjacent sub-pixels are continuously arranged to form a mesh-like pathway. The mesh-like pathway includes multiple pathways arranged in a cross pattern, at least one pathway is a pathway with uneven width, and at least a portion of the edge of the unevenly wide pathway is the edge of the isolation portion. The unevenly wide pathway includes a first pathway portion overlapping the light-emitting area and a second pathway portion located outside the light-emitting area. A straight line perpendicular to the extension direction of the unevenly wide pathway includes a first straight line passing through the orthographic projection of the first pathway portion on the substrate and a second straight line passing through the orthographic projection of the second pathway portion on the substrate. The length of the line connecting the first straight line and the two intersection points of the orthographic projections of the edges of the isolation portions on both sides of the first pathway portion on the substrate is the first line length. The length of the line connecting the second straight line and the two intersection points of the orthographic projections of the edges of the isolation portions on both sides of the second pathway portion on the substrate is the second line length. The length of the first line is not less than the length of the second line.

[0050] The isolation portion provided in the display substrate of this disclosure isolates at least one layer of the light-emitting functional layer and at least a portion of the second electrode. By setting the shape of the isolation portion, the second electrode forms a mesh-like path. The distance between the edges of the isolation portions on both sides of the first path portion at the position corresponding to the light-emitting area is not less than the distance between the edges of the isolation portions on both sides of the second path portion outside the corresponding light-emitting area. This reduces crosstalk between adjacent sub-pixels, improves the conduction effect of the second electrode, and minimizes the increase in the resistance of the second electrode. This helps to avoid excessive power consumption and brightness uniformity problems in the display substrate.

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

[0052] Figures 1-3 This is a partial planar structure schematic diagram of a display substrate provided according to an embodiment of the present disclosure. Figure 4A For along Figure 1 A schematic diagram of the local cross-section structure intercepted by line AA'. Figure 1The first electrode of the light-emitting element is shown, but the second electrode is not shown. Figure 2 and Figure 3 The second electrode of the light-emitting element is shown, but the first electrode of the light-emitting element is not shown.

[0053] like Figures 1 to 4A As shown, the display substrate includes a substrate 01 and a plurality of sub-pixels 10 located on the substrate 01. At least some of the sub-pixels 10 include a light-emitting element 100, the light-emitting element 100 including a light-emitting region 101, the light-emitting element 100 including a light-emitting functional layer 130, and a light-emitting layer along a direction perpendicular to the substrate 01 (e.g., ...). Figure 4A The first electrode 110 and the second electrode 120 (shown in the Z direction) are located on both sides of the light-emitting functional layer 130. The first electrode 110 is located between the light-emitting functional layer 130 and the substrate 01, and the second electrode 120 is located on the side of the light-emitting functional layer 130 away from the substrate 01. The light-emitting functional layer 130 includes multiple film layers. For example, the light-emitting functional layer 130 includes a charge generation layer 133. For example, the light-emitting element 100 can be an organic light-emitting element. For example, each sub-pixel located in the display area includes a light-emitting element.

[0054] like Figures 1 to 4A As shown, an isolation portion 210 is provided between at least two adjacent sub-pixels 10. At least one layer of the light-emitting functional layer 130 and at least a portion of the second electrode 120 are disconnected at the edge of the isolation portion 210, and the second electrodes 120 of adjacent sub-pixels 10 are at least partially continuous to form a mesh-like path 30. For example, an isolation portion 210 is provided between any adjacent sub-pixels 10. For example, the second electrodes 120 at positions where there is at least no isolation portion 210 are continuously provided between adjacent sub-pixels 10.

[0055] For example, the orthographic projection of the second electrode 120 in at least some of the sub-pixels 10 onto the substrate 01 is a full-surface structure.

[0056] like Figures 1 to 4A As shown, the length of the orthographic projection of the second electrode 120 in at least a portion of the sub-pixels 10 onto the substrate 01 in one direction is greater than the sum of the dimensions of the orthographic projections of the light-emitting areas 101 of the sub-pixels 10 arranged along that direction onto the substrate 01. For example, the aforementioned "one direction" includes a row direction or a column direction. For example, one of the X direction and Y direction shown in the figure can be a row direction, and the other can be a column direction.

[0057] like Figures 1 to 4AAs shown, the mesh pathway 30 includes multiple pathways 300 arranged in a cross configuration. At least one pathway 300 has an unevenly spaced width, and the width of the portion of the unevenly spaced pathway 300 that overlaps with the light-emitting area 101 is greater than the width of the portion that overlaps with at least some locations outside the light-emitting area 101. For example, the orthographic projection of the widest position of the at least one pathway 300 on the substrate 01 overlaps with the orthographic projection of the light-emitting area 101 on the substrate 01. Figure 3 A path 300 with uneven width is schematically shown. The orthographic projection of the widest point of the path 300 onto the substrate 01 overlaps with the orthographic projection of the light-emitting area 101 onto the substrate 01. The narrowest points of the path 300 overlap with the spacing between adjacent light-emitting areas 101. For example, the width of the path 300 corresponding to different light-emitting areas 101 can be different.

[0058] The isolation portion provided in the display substrate of this disclosure isolates at least one layer of the light-emitting functional layer and at least a portion of the second electrode. By setting the shape of the isolation portion, the second electrode forms a mesh-like path. The width of the mesh-like path at the position corresponding to the light-emitting area is set to improve the matching relationship between the isolation portion and the sub-pixel arrangement. This reduces crosstalk between adjacent sub-pixels and improves the conduction effect of the second electrode, which helps to avoid excessive power consumption and brightness uniformity problems in the display substrate.

[0059] The aforementioned "mesh path" refers to the second electrode being formed after the isolation section is formed, where the second electrode is broken at at least one isolation section location, and the continuous portion of the second electrode other than the broken location forms a mesh-like overlapping channel, which is a channel for transmitting charge and forms a charge path.

[0060] In any embodiment of this disclosure, "adjacent sub-pixels" refers to two sub-pixels 10 where no other sub-pixels 10 are set between them.

[0061] In some examples, such as Figure 4A As shown, the light-emitting functional layer 130 may include a first light-emitting layer (EML) 131, a charge-generating layer (CGL) 133, and a second light-emitting layer (EML) 132 stacked together, with the charge-generating layer 133 located between the first light-emitting layer 131 and the second light-emitting layer 132. The charge-generating layer has strong conductivity, which enables the light-emitting functional layer to have advantages such as long lifespan, low power consumption, and high brightness. For example, compared to a light-emitting functional layer without a charge-generating layer, a sub-pixel can nearly double its brightness by incorporating a charge-generating layer within the light-emitting functional layer.

[0062] For example, the light-emitting element 100 of the same sub-pixel 10 can be a tandem light-emitting element, such as a TandemOLED.

[0063] For example, the charge generation layer 133 may include an N-type charge generation layer and a P-type charge generation layer.

[0064] For example, in each sub-pixel 10, the light-emitting functional layer 130 may also include a hole injection layer (HIL), a hole transport layer (HTL), an electron transport layer (ETL), and an electron injection layer (EIL).

[0065] For example, the hole injection layer, hole transport layer, electron transport layer, electron injection layer, and charge generation layer 133 are all shared film layers of multiple sub-pixels 10, and can be called common layers. For example, the second electrode 120 in the multiple sub-pixels 10 can be a common electrode shared by multiple sub-pixels 10. When there is no isolation portion 210 between two adjacent sub-pixels 10, the second electrode 120 is a whole film layer.

[0066] For example, the first electrode 110 can be an anode, and the second electrode 120 can be a cathode. For example, the cathode can be formed of a material with high conductivity and low work function; for example, the cathode can be made of a metallic material. For example, the anode can be formed of a transparent conductive material with a high work function.

[0067] For example, at least one film layer in the light-emitting functional layer 130 that is disconnected at the edge of the isolation portion 210 can be at least one of the aforementioned common layers. For example, all the film layers of the light-emitting functional layer 130 and the second electrode 120 are disconnected by the isolation portion 210. By disconnecting at least one of the aforementioned common layers at the edge of the isolation portion 210 located between adjacent sub-pixels, it is beneficial to reduce the probability of crosstalk between adjacent sub-pixels. For example, the aforementioned common layer and the second electrode can be film layers formed using an open mask.

[0068] For example, the second light-emitting layer 132 can be located between the first light-emitting layer 131 and the second electrode 120, and the hole injection layer can be located between the first electrode 110 and the first light-emitting layer 131. For example, an electron transport layer can also be disposed between the charge generation layer 133 and the first light-emitting layer 131. For example, a hole transport layer can be disposed between the second light-emitting layer 132 and the charge generation layer 133. For example, an electron transport layer and an electron injection layer can be disposed between the second light-emitting layer 132 and the second electrode 120.

[0069] For example, in the same sub-pixel 10, the first light-emitting layer 131 and the second light-emitting layer 132 can be light-emitting layers that emit the same color of light. For example, in a sub-pixel 10 that emits different colors of light, the first light-emitting layer 131 emits different colors of light. For example, in a sub-pixel 10 that emits different colors of light, the second light-emitting layer 132 emits different colors of light. Of course, the embodiments disclosed herein are not limited to this. For example, in the same sub-pixel 10, the first light-emitting layer 131 and the second light-emitting layer 132 can be light-emitting layers that emit different colors of light. By setting light-emitting layers that emit different colors of light in the same sub-pixel 10, the light emitted by the multiple light-emitting layers included in the sub-pixel 10 can be mixed into white light, and the color of the light emitted by each sub-pixel can be adjusted by setting a color filter layer.

[0070] For example, such as Figures 1 to 4A As shown, the multiple sub-pixels 10 include sub-pixels of different colors, and the width of the overlap between the path 300 and the light-emitting area 101 of the different colored sub-pixels 10 is different. For example, the different colored sub-pixels may include blue sub-pixels, red sub-pixels, and green sub-pixels. The width of the overlap between the path and the light-emitting area of ​​the blue sub-pixel can be greater than the width of the overlap between the path and the light-emitting area of ​​the green sub-pixel; however, this embodiment is not limited to this. Depending on product requirements, such as if the voltage drop of the second electrode of a certain colored sub-pixel has a significant impact on the display product, the width of the path of the second electrode overlapping with the light-emitting area of ​​that colored sub-pixel can be set wider. For example, the aforementioned colored sub-pixel can be a green sub-pixel.

[0071] For example, in adjacent sub-pixels 10, the light-emitting layers located on the same side of the charge generation layer 133 can overlap or be spaced apart. For example, in adjacent sub-pixels 10, the light-emitting layers located on the same side of the charge generation layer 133 can be spaced apart at the edge of the isolation portion 210, but it is not limited to this. In adjacent sub-pixels 10, the light-emitting layers located on the same side of the charge generation layer 133 can overlap or be spaced apart on the pixel defining portion (described later).

[0072] For example, the materials of the electron transport layer may include aromatic heterocyclic compounds, such as imidazole derivatives, imidazopyridine derivatives, benzimidazolephenanthridine derivatives, and other imidazole derivatives; pyrimidine derivatives, triazine derivatives, and other azine derivatives; quinoline derivatives, isoquinoline derivatives, phenanthreneroline derivatives, and other compounds containing a nitrogen-containing six-membered ring structure (including compounds with phosphine oxide substituents on the heterocycle), etc.

[0073] For example, the material of the charge generation layer 133 can be a material containing phospho groups or a material containing triazine.

[0074] For example, the ratio of the electron mobility of the charge generation layer 133 to the electron mobility of the electron transport layer is 10⁻² to 10⁻². 2 .

[0075] For example, such as Figure 4A As shown, at least one of the light-emitting functional layers 130 can be a charge-generating layer 133. The orthographic projection of the charge-generating layer 133 on the substrate 01 is continuous, while the orthographic projection of the second charge-generating layer on a plane perpendicular to the substrate 01 (such as the ZV plane) is discontinuous. For example, the charge-generating layer 133 may include a portion located on the isolation portion 210 and a portion not located on the isolation portion 210, with these two portions disconnected at the edge of the isolation portion 210. For example, the orthographic projections of these two portions on the substrate 01 can be adjacent or overlap, and the orthographic projection of the first charge-generating layer is continuous.

[0076] For example, the light-emitting functional layer 130 includes at least one light-emitting layer, and the film layers in the light-emitting functional layer 130 that are broken at the isolation portion 210 include at least one light-emitting layer and at least one other film layer; the area of ​​the orthogonal projection of the broken at least one other film layer on the substrate 01 is greater than the area of ​​the orthogonal projection of the broken at least one light-emitting layer on the substrate 01; or, the area of ​​the portion of the broken at least one other film layer covering the isolation portion 210 is greater than the area of ​​the portion of the broken at least one light-emitting layer covering the isolation portion 210.

[0077] For example, such as Figure 4A As shown, the orthographic projection of at least one of the multiple films included in the second electrode 120 and the light-emitting functional layer 130 on the substrate 01 overlaps with the orthographic projection of the isolation portion 210 on the substrate 01.

[0078] For example, at least a portion of at least one of the multiple film layers included in the light-emitting functional layer 130 covers a portion of the side surface of the isolation portion 210.

[0079] In some examples, such as Figure 4A As shown, the display substrate also includes a pixel defining pattern 400 and an insulating layer 500. The pixel defining pattern 400 is located on the side of the first electrode 110 of the light-emitting element 100 away from the substrate 01; the insulating layer 500 is located between the pixel defining pattern 400 and the substrate 01. The pixel defining pattern 400 includes a plurality of first openings 410, with each sub-pixel 10 corresponding to at least one first opening 410. The light-emitting element 100 of the sub-pixel 10 is at least partially located in the first opening 410 corresponding to the sub-pixel 10, and the first opening 410 is configured to expose the first electrode 110. For example, the pixel defining pattern 400 includes a pixel defining portion 401 surrounding the first opening 410.

[0080] For example, such as Figure 4AAs shown, when the light-emitting functional layer 130 is formed in the first opening 410 of the pixel-defining pattern 400, 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 in the first opening 410 to emit light. For example, the first opening 410 of the pixel-defining pattern 400 is used to define the light-emitting area 101 of the light-emitting element 100. Figures 1 to 3 The outline of the middle region of each sub-pixel 10 indicates the light-emitting area 101. Figure 1 The outline surrounding the light-emitting area 101 is the first electrode 110.

[0081] The aforementioned light-emitting area 101 can refer to the area where the sub-pixel effectively emits light. The shape of the light-emitting area refers to a two-dimensional shape. For example, the shape of the light-emitting area can be the same as the shape of the first opening 410 of the pixel-defined pattern 400.

[0082] For example, such as Figure 4A As shown, the material of the pixel limiting part 401 may include polyimide, acrylic, or polyethylene terephthalate, etc.

[0083] In some examples, such as Figures 1 to 4A As shown, the pixel defining pattern 400 also includes a second opening 420, which is configured to expose the isolation portion 210, located between the light-emitting functional layer 130 and the insulating layer 500. For example, the pixel defining portion 401 surrounds the second opening 420. For example, the second opening 420 is located between adjacent sub-pixels 10. For example, at least one second opening 420 is provided between adjacent first openings 410. For example, the orthographic projection of the isolation portion 210 on the substrate 01 does not overlap with the orthographic projection of the pixel defining portion 401 on the substrate 01. For example, the pixel defining portion 401 in the pixel defining pattern 400, except for the first opening 410 and the second opening 420, can be a continuous structure.

[0084] In some examples, such as Figures 1 to 4A As shown, the display substrate also includes a defining structure 200 located between the light-emitting functional layer 130 and the insulating layer 500. The defining structure 200 surrounds the light-emitting region 101 of at least a portion of the sub-pixels 10. At least a portion of the defining structure 200 is located on the side of the first electrode 110 away from the substrate 01, and the portion of the defining structure 200 exposed by the second opening 420 includes an isolation portion 210. For example, the isolation portion 210 is part of the defining structure 200, and in the direction perpendicular to the substrate 01, the portion of the defining structure 200 that overlaps with the pixel defining portion 401 is a portion other than the isolation portion 210 that is not used to block at least one layer of the light-emitting functional layer 130.

[0085] For example, such as Figures 1 to 4AAs shown, in the direction perpendicular to the substrate 01, the isolation portion 210 does not overlap with the first electrode 110 of the light-emitting element 10. For example, the isolation portion 210 can be disposed in the same layer as the first electrode 110, such as the first electrode 110 and the isolation portion 210 can both be disposed on the surface of the insulating layer 500 away from the substrate 01.

[0086] For example, such as Figures 1 to 4A As shown, the portion of the defining structure 200 that covers the edge of the first electrode 110, such as covering a ring edge or a portion of the ring edge of the first electrode 110, helps to prevent the edge material (such as silver ions) of the first electrode from falling off. For example, the portion of the defining structure 200 that covers the first electrode 110 is covered by the pixel defining portion 401, that is, the portion of the defining structure 200 that covers the first electrode 110 is located in the area between the first opening 410 and the second opening 420.

[0087] For example, such as Figures 1 to 4A As shown, the defining structure 200 surrounding the light-emitting area 101 of different sub-pixels 10 can be a single integrated structure. For example, multiple sub-pixels 10 include multiple rows of sub-pixels arranged along the X direction, and the defining structure 200 corresponding to every two rows of sub-pixels can be a single integrated structure. For instance, the defining structure 200 corresponding to the first row of sub-pixels and the second row of sub-pixels can be a single integrated structure, and a gap is provided between the defining structure 200 corresponding to the third row of sub-pixels and the defining structure 200 corresponding to the second row of sub-pixels. In this disclosure, by setting the defining structure surrounding the light-emitting area of ​​different sub-pixels as a single integrated structure, the patterning of the defining structure can be facilitated.

[0088] For example, such as Figure 4A As shown, the limiting structure 200 includes three layers of film stacked together, such as a first limiting structure layer 201, a second limiting structure layer 202, and a third limiting structure layer 203. The edges of the first limiting structure layer 201 and the third limiting structure layer 203 at the location of the isolation portion 210 both protrude outward relative to the edge of the second limiting structure layer 202, so that at least one layer of the light-emitting functional layer 130 is broken at the edge of the first limiting structure layer 201.

[0089] For example, the material defining structure 200 may include inorganic non-metallic materials. For example, the material defining structure 200 may include any one or more of silicon nitride, silicon oxide, or silicon oxynitride. For example, the materials of the first defining structure layer 201 and the third defining structure layer 203 may include silicon oxide, and the material of the second defining structure layer 202 may include silicon nitride.

[0090] For example, such as Figure 4A As shown, the thickness of the defined structure 200 can be less than the thickness of the first electrode 110. For example, the thickness of the defined structure 200 can be greater than 400 angstroms.

[0091] Figure 4A Other films between the insulating layer and the substrate are not shown. For example, pixel circuits, various signal lines and other insulating layers that are electrically connected to the light-emitting elements may also be disposed between the insulating layer and the substrate. Other insulating layers may include planarization layers, passivation layers, buffer layers, gate insulating layers, interlayer insulating layers, etc.

[0092] Figures 4B-4D This is a partial cross-sectional structural diagram including an isolation section provided according to different examples of embodiments of the present disclosure. Figures 4B-4D No pixel-defined pattern is shown. Figure 5 In order to be in Figure 4C The diagram shows a structure with a pixel-defining pattern on the isolation section. The isolation section 210 shown in the figure can be a case where the limiting structure is completely exposed by the opening of the pixel-defining pattern.

[0093] Figures 4B-5 The example shown is the same as Figure 4A The example shown differs in that at least a portion of the defined structure 200 is located between the first electrode 110 and the insulating layer 500.

[0094] For example, such as Figures 4B-5 As shown, the insulating layer 500 includes a protrusion 510 on the side away from the substrate 01. The orthographic projection of the protrusion 510 on the substrate 01 overlaps with the orthographic projection of the isolation portion 210 on the substrate 01, and the isolation portion 210 contacts the protrusion 510.

[0095] For example, such as Figures 4B-4D As shown, the material of the isolation portion 210 includes inorganic non-metallic materials, and the material of the insulating layer 500 includes organic materials. For example, the orthographic projection of the protrusion 510 on the substrate 01 is completely within the orthographic projection of the isolation portion 210 on the substrate 01.

[0096] For example, such as Figures 4B-4D As shown, at least one edge of the isolation portion 210 protrudes relative to the edge of the protrusion 510 to isolate the film layer. For example, the edge of the isolation portion 210 may also be flush with the edge of the protrusion 510. For example, the protrusion of at least a portion of the edge of the isolation portion relative to the edge of the protrusion is less than 1 micrometer. For example, the protrusion of at least a portion of the edge of the isolation portion relative to the edge of the protrusion is less than 0.08 micrometers. For example, the protrusion of at least a portion of the edge of the isolation portion relative to the edge of the protrusion is less than 0.05 micrometers. For example, the protrusion of at least a portion of the edge of the isolation portion relative to the edge of the protrusion is less than 0.02 micrometers.

[0097] For example, such as Figure 4BAs shown, the isolation section 210 includes a first isolation structure layer 2011, a second isolation structure layer 2012, and a third isolation structure layer 2013 stacked sequentially. The edges of the first isolation structure layer 2011 and the third isolation structure layer 2013 both protrude relative to the edge of the second isolation structure layer 2012. For example, the inward dimension of the edge of the second isolation structure layer 2012 relative to the edge of the first isolation structure layer 2011 is not less than 0.05 micrometers. For example, the inward dimension of the edge of the second isolation structure layer 2012 relative to the edge of the first isolation structure layer 2011 is not less than 0.08 micrometers. For example, the inward dimension of the edge of the second isolation structure layer 2012 relative to the edge of the first isolation structure layer 2011 is not less than 0.1 micrometers. For example, the inward dimension of the edge of the second isolation structure layer 2012 relative to the edge of the first isolation structure layer 2011 is not less than 0.15 micrometers. For example, the inward dimension of the edge of the second isolation structure layer 2012 relative to the edge of the first isolation structure layer 2011 is not less than 0.2 micrometers. For example, the edge of the second isolation structure layer 2012 is recessed by an area of ​​not less than 0.5 micrometers relative to the edge of the first isolation structure layer 2011.

[0098] For example, such as Figure 4B As shown, the thickness of the isolation portion 210 can be 150 to 5000 angstroms. For example, the thickness of the isolation portion 210 can be 200 to 500 angstroms. For example, the thickness of the isolation portion 210 can be 300 to 1000 angstroms. For example, the thickness of the isolation portion 210 can be 400 to 2000 angstroms. For example, the thickness of the isolation portion 210 can be 600 to 1500 angstroms.

[0099] For example, such as Figure 4B As shown, the thickness of the protrusion 510 can be 400 to 5000 angstroms. For example, the thickness of the protrusion 510 can be 450 to 4000 angstroms. For example, the thickness of the protrusion 510 can be 500 to 3000 angstroms. For example, the thickness of the protrusion 510 can be 600 to 2000 angstroms.

[0100] For example, such as Figure 4B As shown, the middle position of the protrusion 510 is in a direction parallel to the substrate 01, as... Figure 4B The dimension in the X direction shown is smaller than the dimension of the two sides of the protrusion 510 in that direction. For example, the indentation dimension of the middle position of the protrusion 510 relative to the two sides is greater than 0.01 micrometers. For example, the indentation dimension of the middle position of the protrusion 510 relative to the two sides is greater than 0.02 micrometers. For example, the indentation dimension of the middle position of the protrusion 510 relative to the two sides is greater than 0.03 micrometers. For example, the indentation dimension of the middle position of the protrusion 510 relative to the two sides is greater than 0.05 micrometers.

[0101] For example, such as Figure 4BAs shown, the insulating layer 500, excluding the protrusion 510, includes a flat portion 520. The portion connecting the protrusion 510 to the flat portion 520 can be a recessed portion to better isolate the common layer. For example, the edge of the protrusion 510 can be an inclined side, with the angle between the side and the flat portion not exceeding 150 degrees, so that the protrusion and the insulating portion jointly isolate the common layer. For example, the angle between the side and the flat portion is not greater than 140 degrees. For example, the angle between the side and the flat portion is not greater than 130 degrees. For example, the angle between the side and the flat portion is not greater than 120 degrees. For example, the angle between the side and the flat portion is not greater than 110 degrees. For example, the angle between the side and the flat portion is not greater than 100 degrees.

[0102] For example, such as Figure 4B As shown, at least one edge of the third isolation structure layer 2013 protrudes relative to at least one edge of the protrusion 510. For example, at least one edge of the first isolation structure layer 2011 protrudes relative to at least one edge of the third isolation structure layer 2013 to achieve a better isolation effect on the common layer. For example, the protrusion of at least one edge of the first isolation structure layer 2011 relative to at least one edge of the third isolation structure layer 2013 is not less than 0.08 micrometers. For example, the protrusion of at least one edge of the first isolation structure layer 2011 relative to at least one edge of the third isolation structure layer 2013 is not less than 0.1 micrometers. For example, the protrusion of at least one edge of the first isolation structure layer 2011 relative to at least one edge of the third isolation structure layer 2013 is not less than 0.15 micrometers. Of course, the embodiments of this disclosure are not limited to this, and the edge of the protrusion may protrude by a very small amount relative to the edge of the third isolation structure layer.

[0103] Figure 4C The display substrate shown is Figure 4B The difference between the display substrates shown is that the number of film layers included in the isolation portion 210 is different. Figure 4C The protrusion shown can be with Figure 4B The protrusions shown have the same characteristics, which will not be described again here.

[0104] For example, such as Figure 4C As shown, the isolation portion 210 includes a film layer. For example, the thickness of the isolation portion 210 can be 100–5000 angstroms. For example, the thickness of the isolation portion 210 can be 200–4000 angstroms. For example, the thickness of the isolation portion 210 can be 300–3500 angstroms. For example, the thickness of the isolation portion 210 can be 400–2000 angstroms. For example, the thickness of the isolation portion 210 can be 500–1000 angstroms.

[0105] Figure 4C The display substrate shown is Figure 4BThe difference between the display substrates shown is that the number of film layers included in the isolation portion 210 is different.

[0106] For example, Figure 4C As shown, the isolation portion 210 may include two film layers. For example, the isolation portion 210 includes a first isolation structure layer 2011 and a second isolation structure layer 2012 stacked together. The first isolation structure layer 2011 is located on the side of the second isolation structure layer 2012 away from the substrate 01, and the edge of the first isolation structure layer 2011 protrudes relative to the edge of the second isolation structure layer 2012. For example, the edge of the second isolation structure layer 2012 protrudes relative to the edge of the protrusion 510.

[0107] Figure 4C The protrusion shown can be with Figure 4B The protrusions shown have the same features, but are not limited to them. Figure 4C The side of the protrusion shown may not have a recessed portion. For example, the angle between the side and the flat portion of the insulating layer is no greater than 140 degrees. For example, the angle between the side and the flat portion is no greater than 130 degrees. For example, the angle between the side and the flat portion is no greater than 120 degrees. For example, the angle between the side and the flat portion is no greater than 110 degrees. For example, the angle between the side and the flat portion is no greater than 100 degrees.

[0108] For example, such as Figure 5 As shown, the defining structure 200 is formed between the first electrode 110 of the sub-pixel and the substrate 01. Before forming the first electrode 110 of the sub-pixel, the defining structure 200 is deposited on an insulating layer 500, such as a planarization layer, and then the first electrode 110 of the sub-pixel is formed on the defining structure 200. In this display substrate, when forming the defining structure 200 including the isolation portion 210, the planarization layer 500 located at the bottom of the defining structure 200 is etched to form serrations. By forming the first electrode on the defining structure, the unevenness of the planarization layer can prevent serrations in the first electrode, reducing the probability of display defects. For example, the orthographic projection of the first electrode 110 on the substrate 01 can be completely within the orthographic projection of the defining structure 200 on the substrate 01.

[0109] For example, the defining structure located directly below the first electrode 110 and the defining structure exposed by the second opening 420 of the pixel defining pattern 400 can be an integrated defining structure or a defined structure spaced apart.

[0110] In the display substrate provided in this application, after depositing and etching the pattern of the first electrode of the sub-pixel above an insulating layer, such as a planarization layer, a defining structure, such as a stacked structure like SiOx / SiNx / SiOx, is covered around the first electrode. During etching of the defining structure, the SiNx film layer in the defining structure is easier to etch than SiOx, thus forming an "I"-shaped morphology at the edge of the defining structure after etching. This morphology allows at least one layer of the light-emitting functional layer to be isolated when deposited on the isolation portion in the defining structure, which helps reduce crosstalk between adjacent light-emitting areas. For example, the pixel defining film layer deposited on the defining structure is patterned to form a second opening to expose the isolation portion at the edge of the defining structure, thereby isolating at least one layer of the light-emitting functional layer. Meanwhile, the second electrode of the sub-pixel formed at the portion covered by the pixel defining portion at the edge of the defining structure remains continuous, forming a charge transport path to achieve the conduction effect of the second electrode.

[0111] The isolation facilities provided in this public notice are not limited to Figure 4A The shape and position shown may include, for example, a first sub-isolation structure and a second sub-isolation structure stacked together, with the first sub-isolation structure located between the second sub-isolation structure and the substrate. Along the arrangement direction of adjacent sub-pixels, the size of the first sub-isolation structure in the isolation portion between the adjacent sub-pixels is smaller than the size of the second sub-isolation structure, such that the second sub-isolation structure includes a portion protruding relative to the edge of the first sub-isolation structure. Alternatively, at least a portion of the side surface of the first sub-isolation structure has a slope angle greater than 60 degrees and less than 120 degrees with a plane parallel to the contact surface of the first and second sub-isolation structures, and / or, at least a portion of the side surface of the second sub-isolation structure has a slope angle greater than 60 degrees and less than 120 degrees with a plane parallel to the contact surface of the first and second sub-isolation structures. For example, the isolation portion may be formed between pixel-defining patterns, such as in an opening in an insulating layer, and exposed by a second opening of the pixel-defining pattern; or, the isolation portion may be located between adjacent sub-pixels and spaced apart from the first electrode, with the second opening of the pixel-defining pattern exposing the isolation portion; or, the isolation portion may be located on the side of the pixel-defining portion away from the substrate.

[0112] The isolation facilities provided in this public notice are not limited to Figure 4A The shape and position shown may include, for example, an isolation portion that may also include a groove in an insulating layer and a blocking portion located at the edge of the groove and protruding into the groove opening. The blocking portion in the isolation portion is located between adjacent sub-pixels and is spaced apart from the first electrode of the adjacent sub-pixels. Alternatively, the isolation portion may also include a groove in a pixel defining portion and a blocking portion located at the edge of the groove and protruding into the groove.

[0113] The isolation facilities provided in this public notice are not limited to Figure 4AThe shape and position shown may include, for example, a first sub-isolation portion and a second sub-isolation portion stacked together. The first sub-isolation portion is located between the second sub-isolation portion and the substrate. The material of the first sub-isolation portion includes an inorganic material, and the material of the second sub-isolation portion includes an organic material. The second sub-isolation portion includes a protrusion that projects relative to the edge of the first sub-isolation portion. The protrusion is located between adjacent sub-pixels. At least a portion of the second sub-isolation portion facing one of the adjacent sub-pixels has a different shape from at least a portion of the second sub-pixel facing another adjacent sub-pixel. The second sub-isolation portion in this isolation portion may be part of a pixel defining portion. The first sub-isolation portion may be disposed in the same layer as the first electrode of the sub-pixel, or the first sub-isolation portion may be part of the first electrode of the sub-pixel.

[0114] The isolation facilities provided in this public notice are not limited to Figure 4A The shape and position shown may include an isolation portion comprising a first substructure and a second substructure stacked together, the first substructure located between the second substructure and a substrate, the first substructure being made of a different material than the second substructure; along the arrangement direction of adjacent subpixels, the edge of the second substructure in the defined structure located between the adjacent subpixels protrudes relative to the edge of the first substructure to form a protrusion; or, at least a portion of the side surface of the second substructure has a slope angle of a plane parallel to the contact surface of the first and second substructures as a first slope angle, and at least a portion of the side surface of the first substructure has a slope angle of a plane parallel to the contact surface of the first and second substructures as a second slope angle, at least one of the first slope angle and the second slope angle being greater than 60 degrees, and the surface area of ​​the second substructure near the first substructure is not less than the area of ​​the contact surface of the first and second substructures. The isolation portion is spaced apart from the first electrode of the subpixel.

[0115] Figure 2 The locations of multiple pathways are schematically shown, but the width characteristics of the different pathways are not shown.

[0116] In some examples, such as Figure 2 As shown, the multiple paths 300 include multiple main paths 310 and multiple branch paths 320, and at least one branch path 320 is connected to the main path 310 at both ends with an extension direction that intersects with or is in the same extension direction.

[0117] For example, multiple main routes 310 include first main routes 311 and second main routes 312 whose extension directions intersect. For example, multiple main routes 310 include multiple first main routes 311 extending along the X direction and multiple second main routes 312 extending along the Y direction. When the first main route is non-linear, such as a broken line, the extension direction of the aforementioned first main route can refer to the overall extension direction of a single first main route, such as the overall extension direction of a broken line being the X direction. When the second main route is non-linear, such as a broken line, the extension direction of the aforementioned second main route can refer to the overall extension direction of a single second main route, such as the overall extension direction of a broken line being the X direction.

[0118] For example, the angle between the X and Y directions can be 30 to 150 degrees. For example, the angle between the X and Y directions can be 60 to 120 degrees. For example, the angle between the X and Y directions can be 80 to 100 degrees. For example, the X and Y directions can be perpendicular.

[0119] For example, such as Figure 2 As shown, multiple first main channels 311 and multiple second main channels 312 constitute part of the mesh channel 30. The first main channels 311 and the second main channels 312 are connected, and the charge transmitted by the second electrode 120 can be transmitted in the first main channels 311 and the second main channels 312.

[0120] In some examples, such as Figure 2 As shown, multiple trunk paths 310 pass through at least part of the area where sub-pixels 10 are located.

[0121] For example, the length of the main path 310 is greater than the length of the branch path 320. For example, the area of ​​the region where a main path 310 is located is greater than the area where a branch path 320 is located. For example, the area of ​​the region traversed by a main path 310 is greater than the area of ​​the region traversed by a branch path 320. For example, the number of light-emitting areas 101 of the sub-pixel 10 traversed by a main path 310 is greater than the number of light-emitting areas 101 of the sub-pixel 10 traversed by a branch path 320. The aforementioned passage traversing the light-emitting area of ​​a sub-pixel refers to the overlap between the orthographic projection of the path on the substrate and the orthographic projection of the light-emitting area of ​​the sub-pixel on the substrate.

[0122] For example, the main path 310 can penetrate the display area in its extension direction. For instance, the main path 310 extending in the X direction can penetrate the display area where the sub-pixel 10 is located in the X direction, and the main path 310 extending in the Y direction can penetrate the display area where the sub-pixel 10 is located in the Y direction. For instance, the branch path 320 is only located in one or some smaller areas within the area where the main path 310 is located. For instance, a branch path 320 can be located within the area enclosed by four intersecting main paths 310.

[0123] In some examples, such as Figure 2 As shown, at least one branch path 320 has its two ends connected to the first main path 311 and the second main path 312, respectively. For example, path 300 includes multiple branch paths 320, and at least a portion of the branch paths 320 have their two ends connected to the first main path 311 and the second main path 312, respectively. For example, the shapes of different branch paths 320 can be the same or different. For example, the lengths of different branch paths 320 can be the same or different. The connection between the branch path and the main path can refer to the second electrode at the branch path position being continuous with the second electrode at the main path position, i.e., an integrated structure.

[0124] For example, such as Figure 2 As shown, at least one branch path 320 can be in the shape of a broken line, with its two ends connected to the first main path 311 and the second main path 312, respectively. For example, a branch path 320 can pass through the light-emitting area 101 of at least one sub-pixel 10.

[0125] For example, such as Figure 2 As shown, the branch path 320 is connected to the main path 310, and the charge transmitted by the second electrode 120 can be transmitted in the branch path 320 and the main path 310.

[0126] In other examples, at least one branch path 320 has both ends connected to one of the first main path 311 and the second main path 312. For example, at least one branch path 320 may have both ends connected to two different first main paths 311, or at least another branch path 320 may have both ends connected to two different second main paths 312. For example, the extension direction of the branch path 320 may be different from both the extension directions of the first main path 311 and the second main path 312, or the branch path 320 may have the same extension direction as one of the first main path 311 and the second main path 312.

[0127] In some examples, such as Figures 1 to 3 As shown, the plurality of sub-pixels 10 include a plurality of first-color sub-pixels 11, a plurality of second-color sub-pixels 12, and a plurality of third-color sub-pixels 13. The plurality of sub-pixels 10 are arranged in a plurality of alternating first sub-pixel groups 001 and a plurality of second sub-pixel groups 002 along a first direction. Each first sub-pixel group 001 includes alternating first-color sub-pixels 11 and second-color sub-pixels 12 along a second direction, and each second sub-pixel group 002 includes third-color sub-pixels 13 arranged along a second direction. The first direction intersects the second direction. For example, the first direction can be... Figure 1 The X direction shown can be followed by a second direction. Figure 1The Y-direction shown can be interchanged with the first and second directions. For example, the angle between the first and second directions can be 80 to 120 degrees. For example, the first and second directions can be perpendicular. For example, one of the first and second directions can be a row direction, and the other can be a column direction. For example, if the first direction is a row direction and the second direction is a column direction, then the first sub-pixel group can be the first sub-pixel column, and the second sub-pixel group can be the second sub-pixel column; if the first direction is a column direction and the second direction is a row direction, then the first sub-pixel group can be the first sub-pixel row, and the second sub-pixel group can be the second sub-pixel row.

[0128] In some examples, such as Figures 1 to 3 As shown, the first sub-pixel group 001 and the second sub-pixel group 002 are staggered in the second direction, and at least some of the first color sub-pixels 11 are surrounded by eight sub-pixels 10, which include alternately arranged third color sub-pixels 13 and second color sub-pixels 12.

[0129] For example, such as Figures 1 to 3 As shown, the first color sub-pixels 11 and the second color sub-pixels 12 are arranged alternately along the second direction, and the third color sub-pixels 13 are arranged in an array along the first and second directions. For example, at least some of the second color sub-pixels 12 are surrounded by eight sub-pixels 10, and the eight sub-pixels 10 include alternately arranged third color sub-pixels 13 and first color sub-pixels 11.

[0130] For example, such as Figures 1 to 3 As shown, one of the first color sub-pixel 11 and the second color sub-pixel 12 can be a red sub-pixel that emits red light, and the other can be a blue sub-pixel that emits blue light. The third color sub-pixel 13 can be a green sub-pixel that emits green light. For example, the first color sub-pixel 11 is a blue sub-pixel, and the second color sub-pixel 12 is a red sub-pixel.

[0131] For example, such as Figures 1 to 3 As shown, the center of the light-emitting area of ​​the first color sub-pixel 11 and the center of the light-emitting area of ​​the second color sub-pixel 12 are on a straight line extending along the Y direction. For example, as... Figures 1 to 3 As shown, the angle between the center line connecting the light-emitting areas 101 of adjacent first color sub-pixels 11 and second color sub-pixels 12 arranged along the Y direction and the straight line extending along the Y direction is small, such as no more than 2 degrees.

[0132] For example, four third color sub-pixels 13 are respectively set at 45°, 135°, 225° and 315° angular directions at the center of the light-emitting area of ​​the first color sub-pixel 11.

[0133] In some examples, such as Figure 2As shown, at least part of the main path 310 passes through the second sub-pixel group 002.

[0134] Since severe crosstalk can easily occur between the first color sub-pixel and the second color sub-pixel, such as the red sub-pixel and the blue sub-pixel, by setting the main path to pass through the sub-pixel group where the third color sub-pixel is located, and the branch path to pass through the branch path where the first color sub-pixel and the second color sub-pixel are located, for example, the isolation part set around the first color sub-pixel and the second color sub-pixel covers more of the edge of the corresponding light-emitting area, it can isolate at least one common film layer between the first color sub-pixel and the second color sub-pixel, while indirectly isolating at least one common film layer between the first color sub-pixel and the third color sub-pixel and between the second color sub-pixel and the third color sub-pixel, so that the second electrode around the light-emitting area of ​​the third color sub-pixel forms a wider main path, thereby improving the charge transfer effect.

[0135] For example, at least part of the main path 310 passes through the light-emitting area 101 of the third color sub-pixel 13. The main path passing through the second sub-pixel group means that the orthographic projection of the main path on the substrate overlaps with the orthographic projection of the light-emitting area of ​​the second sub-pixel group on the substrate.

[0136] For example, such as Figure 2 As shown, the extension directions of the first main path 311 and the second main path 312 are both parallel to the arrangement direction of the third color sub-pixel 13. For example, the second main path 312 passes through the second sub-pixel group 002. For example, the first main path 311 passes through the light-emitting area 101 of the third color sub-pixel 13. For example, all paths 300 passing through the third color sub-pixel 13 can be main paths 310.

[0137] For example, such as Figure 2 As shown, the intersection of the first main path 311 and the second main path 312 overlaps with the light-emitting area 101 of the third color sub-pixel 13. For example, the width of the path 300 is widest at the intersection of the first main path 311 and the second main path 312 to improve the charge transfer effect.

[0138] In some examples, such as Figure 2 As shown, at least one branch path 320 passes through at least one of the first color sub-pixel 11 and the second color sub-pixel 12. The branch path passing through at least one of the first color sub-pixel and the second color sub-pixel means that the orthographic projection of the branch path on the substrate overlaps with the orthographic projection of the light-emitting area of ​​the first color sub-pixel and the light-emitting area of ​​the second color sub-pixel on the substrate.

[0139] For example, such as Figure 2As shown, a portion of the multiple branch paths 320 pass through the light-emitting area 101 of the first color sub-pixel 11, and another portion of the branch paths 320 pass through the light-emitting area 101 of the second color sub-pixel 12. This embodiment is not limited to this; the branch paths may also pass only through the light-emitting area of ​​the first color sub-pixel, or only through the light-emitting area of ​​the second color sub-pixel.

[0140] In some examples, such as Figures 1 to 2 As shown, the isolation portion 210 includes a non-closed ring-shaped first isolation portion 211 surrounding at least one first color sub-pixel 11. At least two first notches 212 are provided in the non-closed ring-shaped first isolation portion 211, and at least one branch path 320 passes through the first notches 212 to connect with the main path 310. The aforementioned first isolation portion refers to the defining structure of the pixel defining pattern exposed by the second opening, and the aforementioned first notch refers to the defining structure covered by the pixel defining portion. The aforementioned first isolation portion refers to the portion of the defining structure surrounding the light-emitting area of ​​the first color sub-pixel that is exposed by the second opening.

[0141] For example, such as Figures 1 to 2 As shown, the isolation portion 210 surrounding each first color sub-pixel 11 is a first isolation portion 211. The non-closed ring-shaped first isolation portion 211 is provided with two first notches 212. One end of the branch path 320 passing through the light-emitting area 101 of the first color sub-pixel 11 passes through one first notch 212 to connect with the first main path 311, and the other end of the branch path 320 passes through the other first notch 212 to connect with the second main path 312. When the non-closed ring-shaped first isolation portion is provided with two first notches, the relative positional relationship of the two first notches can be set so that the two ends of the branch path passing through the light-emitting area of ​​the first color sub-pixel pass through two different first notches to connect with the first main path and the second main path respectively, or so that the two ends of the two first notches passing through the light-emitting area of ​​the first color sub-pixel are both connected to the first main path, or both are connected to the second main path.

[0142] For example, the number of first gaps 212 provided around at least one first color sub-pixel 11 in a non-closed ring-shaped first isolation portion 211 is greater than two. Branch paths 320 pass through each first gap 212 and connect to the main path 310. The number of first main paths 311 connected to the branch path 320 can be the same as the number of second main paths 312 connected to the branch path 320, or the two numbers can be different.

[0143] In some examples, such as Figure 2As shown, at least one branch path 320 passes through at least two first gaps 212 to form at least one L-shaped branch path 320. The aforementioned at least two first gaps include a first gap located on one side of the light-emitting area of ​​the first color sub-pixel in the first direction and a first gap located on one side of the light-emitting area of ​​the first color sub-pixel in the second direction.

[0144] For example, the orthographic projection of the corner position of the L-shaped branch path 320 on the substrate overlaps with the orthographic projection of the light-emitting area 101 of the first color sub-pixel 11 on the substrate. Figure 2 The illustration shows one first color sub-pixel corresponding to one L-shaped branch path, but it is not limited to this. By setting the number and position of the first gap, the first color sub-pixel can correspond to multiple L-shaped branch paths. The L-shaped branch paths corresponding to the same first color sub-pixel can share some branch paths or be set at intervals.

[0145] In some examples, such as Figures 1 to 2 As shown, at least a portion of the first isolation section 211 is located between a first color sub-pixel 11 and a third color sub-pixel 13 that are adjacent in a third direction, and both the first and second directions intersect with the third direction. For example, the third direction can be... Figure 4A The distance between the adjacent edges of the first isolation portion 211 and the light-emitting area 101 of the first color sub-pixel 11 is a first distance D1, and the distance between the adjacent edges of the first isolation portion 211 and the light-emitting area 101 of the third color sub-pixel 13 is a second distance D2. The first distance D1 is less than the second distance D2. The edge of the first isolation portion refers to the edge of the first isolation portion exposed by the second opening of the pixel-defined pattern.

[0146] For example, only one isolation portion 210, such as the first isolation portion 211, is provided between the adjacent first color sub-pixel 11 and the third color sub-pixel 13. The first isolation portion 211 is closer to the first color sub-pixel 11, which helps to increase the width of the intersection of the main path of the second electrode and the third color sub-pixel, thereby reducing the power consumption of the display substrate when it is used for display.

[0147] For example, the ratio of the first distance D1 to the second distance D2 can be 0.1 to 0.9. For example, the ratio of the first distance D1 to the second distance D2 can be 0.2 to 0.7. For example, the ratio of the first distance D1 to the second distance D2 can be 0.3 to 0.8. For example, the ratio of the first distance D1 to the second distance D2 can be 0.45 to 0.65. For example, the ratio of the first distance D1 to the second distance D2 can be 0.5 to 0.58. For example, the ratio of the first distance D1 to the second distance D2 can be 0.55 to 0.6.

[0148] In some examples, such as Figures 1 to 2 As shown, the first notch 212 is configured to expose at least one corner 1010 of the light-emitting area 101 of the first color sub-pixel 11. For example, each first notch 212 exposes one corner 1010 of the light-emitting area 101 of the first color sub-pixel 11, and different first notches 212 corresponding to the same first color sub-pixel 11 are configured to expose different corners 1010 of the light-emitting area 101. For example, the two corners 1010 included by the two first notches 212 corresponding to the same first color sub-pixel 11 can be two adjacent corners 1010 or two opposite corners 1010.

[0149] In this embodiment of the disclosure, the notch exposing the corner of the light-emitting area refers to the corner on the side away from the light-emitting area where no isolation part is provided, and the line connecting the vertex of the corner and the center of the light-emitting area.

[0150] For example, such as Figures 1 to 2 As shown, an isolation portion 210 is provided between the first notch 212 corresponding to the first color sub-pixel 11 and the second color sub-pixel 12 adjacent to the first color sub-pixel 11 to reduce crosstalk between the first color sub-pixel and the second color sub-pixel.

[0151] For example, such as Figures 1 to 2 As shown, a first isolation portion 211 is provided between a first color sub-pixel 11 and a third color sub-pixel 13 that are adjacent to each other in the third direction. A first isolation portion 211 or a first gap 212 is provided between a first color sub-pixel 11 and a second color sub-pixel 12 that are adjacent to each other in the first direction. A first isolation portion 211 or a first gap 212 is provided between a first color sub-pixel 11 and a second color sub-pixel 12 that are adjacent to each other in the second direction.

[0152] For example, such as Figure 1 As shown, the first electrode 110 of each light-emitting element includes an integrated main electrode 111 and a connecting electrode 112. The main electrode 111 overlaps with the light-emitting area 101, and the shape of the main electrode 111 is approximately the same as the shape of the light-emitting area 101. For example, if the shape of the light-emitting area 101 is quadrilateral, the shape of the main electrode 111 is also quadrilateral. The connecting electrode 112 does not overlap with the light-emitting area 101. For example, each sub-pixel also includes a driving circuit, which is electrically connected to the first electrode of the light-emitting element to drive the light-emitting element to emit light. For example, the connecting electrode 112 is electrically connected to the driving circuit.

[0153] For example, such as Figure 1 As shown, in the direction perpendicular to the substrate 01, the first isolation portion 211 does not overlap with the connecting electrode 112, that is, the pixel defining portion overlaps with the connecting electrode 112. For example, the first notch 212 exposes a portion of the connecting electrode 112 and the main electrode 111.

[0154] The display substrate provided in this disclosure, by setting the first isolation portion surrounding the light-emitting area of ​​the first color sub-pixel as a non-closed ring, can increase the charge path of the second electrode, such as a branch path, which helps to reduce crosstalk of the display substrate while ensuring that the power consumption of the display substrate is not too high when used for display.

[0155] For example, such as Figures 1 to 2 As shown, the size of the first notch 212 corresponding to the connecting electrode 112 can be larger than the size of the other first notches 212.

[0156] Figure 6 for Figure 1 A schematic enlarged view of the luminous region of a first color sub-pixel is shown.

[0157] In some examples, such as Figure 1 and Figure 6 As shown, each edge or its extension of the luminous area 101 of at least one first color sub-pixel 11 is sequentially connected to form a polygon 02, and multiple vertices 021 of the polygon 02 have regions 022 that do not overlap with multiple corners of the corresponding luminous area 101; the luminous area 101 of at least one first color sub-pixel 11 includes at least one specific corner 1011, and the area 022 of the specific corner 1011 and the corresponding vertices 021 of the polygon 02 that do not overlap is greater than the area of ​​each of the other corners 1012 and the area of ​​the corresponding vertices 021 of the polygon 02 that does not overlap. For example, if the area of ​​the other corners 1012 of the luminous area 101 of the first color sub-pixel 11 that do not overlap with the corresponding vertices 021 of the polygon 02 is very small, such as essentially zero, then the corner of the luminous area coincides with the vertices of the polygon.

[0158] For example, such as Figure 6As shown, the distance from the intersection of the extensions of the two straight sides L1 and L2 constituting a specific corner 1011 to the center O of the light-emitting area of ​​that sub-pixel is different from the distance from the intersection of the two straight sides L3 and L4 constituting other corners 1012 to the center O of that sub-pixel. For example, the intersection of the two lines is the vertex of another corner. In this case, the other corner can be a range of x micrometers along the contour centered on that vertex, where the value of x can be 2 to 7 micrometers. For example, the aforementioned specific corner can be a section of curve formed by the intersection of two adjacent sides extending towards their vertex, making the corner a rounded chamfer. For example, the specific corner 1011 includes a rounded chamfer, and the vertex of the corner can be the intersection point P of the line connecting the extensions of the two sides used to form the rounded chamfer and the vertex of the corner opposite to the rounded chamfer. In this case, the corner can be a range of x micrometers along the contour centered on that vertex P, where the value of x can be 2 to 7 micrometers. When a specific corner is rounded and other corners are right angles or acute angles, the distance from the intersection of the extensions of the two straight edges constituting the specific corner to the center of the light-emitting area of ​​that sub-pixel is less than the distance from the intersection of the extensions of the two straight edges constituting the other corners to the center of the light-emitting area of ​​that sub-pixel.

[0159] The aforementioned "rounded chamfer" refers to the apex corner formed by a curve. This curve can be an arc or an irregular curve, such as a curve truncated from an ellipse, a wavy line, etc. The embodiments of this disclosure schematically show that the curve has a shape that convexes outward relative to the center of the sub-pixel, but it is not limited to this; the curve can also have a shape that is concave inward relative to the center of the sub-pixel. For example, when the curve is an arc, the central angle of the arc can range from 10° to 150°. For example, the central angle of the arc can range from 60° to 120°. For example, the central angle of the arc can range from 90°. For example, the curve length of the rounded chamfer included in the specific corner 1011 can be from 10 to 60 micrometers. Of course, the specific corner is not limited to the aforementioned rounded chamfer; it can also be a flat chamfer.

[0160] In some examples, such as Figures 1 to 2 As shown, the first notch 212 is configured to expose a specific corner 1011. For example, the branch path 320 passes through the specific corner 1011 of the light-emitting area 101 of the first color sub-pixel 11 and connects to the main path 310. For example, the orthographic projection of the branch path 320 on the substrate 01 overlaps with the orthographic projection of the specific corner 1011 on the substrate 01.

[0161] In this embodiment of the disclosure, the notch exposed corner can refer to the notch being opposite to the corner, and there is no isolation part between the second electrode at the corner and the main passage.

[0162] By setting at least one corner of the light-emitting area of ​​the first color sub-pixel as the aforementioned specific corner, the present disclosure can increase the distance between the specific corner and the light-emitting area of ​​the adjacent sub-pixel, thereby reducing the probability of crosstalk between adjacent sub-pixels; at the same time, setting a first notch at the specific corner position is beneficial to reduce the resistance of the second electrode to reduce the power consumption of the display substrate when used for display.

[0163] For example, such as Figures 1 to 2 As shown, the corners 1010 of the light-emitting areas 101 corresponding to each first notch 212 are all specific corners 1011. For example, the number of first notches 212 corresponding to the light-emitting areas 101 of the same first color sub-pixel 11 is no greater than the number of specific corners 1011 included in the light-emitting area 101.

[0164] In some examples, such as Figures 1 to 2 As shown, the isolation portion 210 includes a non-closed ring-shaped second isolation portion 213 surrounding at least one second color sub-pixel 12. The second isolation portion 213 is provided with at least two second notches 214, and at least one branch path 320 passes through the second notches 214 to connect with the main path 310. The aforementioned second isolation portion refers to the defining structure of the pixel defining pattern exposed by the second opening, and the aforementioned second notch refers to the defining structure covered by the pixel defining portion. The aforementioned second isolation portion refers to the portion of the defining structure surrounding the light-emitting area of ​​the second color sub-pixel that is exposed by the second opening.

[0165] For example, such as Figures 1 to 2 As shown, the isolation portion 210 surrounding each second color sub-pixel 12 is a second isolation portion 213. The non-closed ring-shaped second isolation portion 213 is provided with two second notches 214. One end of the branch path 320 passing through the light-emitting area 101 of the second color sub-pixel 12 passes through one second notch 214 to connect with the first main path 311, and the other end of the branch path 320 passes through the other second notch 214 to connect with the second main path 312. When the non-closed ring-shaped second isolation portion is provided with two second notches, the relative positional relationship of the two second notches can be set so that the two ends of the branch path passing through the light-emitting area of ​​the second color sub-pixel pass through two different second notches to connect with the first main path and the second main path respectively, or so that both ends of the light-emitting area passing through the second color sub-pixel are connected to the first main path, or both are connected to the second main path.

[0166] For example, the number of second gaps 214 provided around the non-closed ring-shaped second isolation portion 213 of at least one second color sub-pixel 12 is greater than two. The branch path 320 passes through each second gap 214 and connects to the trunk path 310. The number of first trunk paths 311 connected to the branch path 320 can be the same as the number of second trunk paths 312 connected to the branch path 320, or the two numbers can be different.

[0167] In some examples, such as Figure 2 As shown, at least one branch path 320 passes through at least two second gaps 214 to form at least one L-shaped branch path. The aforementioned at least two second gaps include a second gap located on one side of the light-emitting area of ​​the second color sub-pixel in the first direction and a second gap located on one side of the light-emitting area of ​​the second color sub-pixel in the second direction.

[0168] For example, the orthographic projection of the corner position of the L-shaped branch path 320 on the substrate overlaps with the orthographic projection of the light-emitting area 101 of the second color sub-pixel 12 on the substrate. Figure 2 The illustration shows one second color sub-pixel corresponding to one L-shaped branch path, but it is not limited to this. By setting the number and position of the second gap, the second color sub-pixel can correspond to multiple L-shaped branch paths. The L-shaped branch paths corresponding to the same second color sub-pixel can share some branch paths or be set at intervals.

[0169] In some examples, such as Figures 1 to 2 As shown, at least a portion of the second isolation section 213 is located between the second color sub-pixel 12 and the third color sub-pixel 13, which are adjacent in the third direction, and both the first and second directions intersect with the third direction. For example, the third direction can be... Figure 4A The distance between the adjacent edges of the second isolation portion 213 and the light-emitting area 101 of the second color sub-pixel 12 is a third distance D3, and the distance between the adjacent edges of the second isolation portion 213 and the light-emitting area 101 of the third color sub-pixel 13 is a fourth distance D4. The third distance D3 is less than the fourth distance D4. The edge of the second isolation portion mentioned above refers to the edge of the second isolation portion exposed by the second opening of the pixel-defined pattern.

[0170] For example, only one isolation portion 210, such as the second isolation portion 213, is provided between the adjacent second color sub-pixel 12 and the third color sub-pixel 13. The second isolation portion 213 is closer to the second color sub-pixel 12, which helps to increase the width at the intersection of the main path of the second electrode and the third color sub-pixel, thereby reducing the power consumption of the display substrate when it is used for display.

[0171] For example, the ratio of the third distance D3 to the fourth distance D4 can be 0.1 to 0.9. For example, the ratio of the third distance D3 to the fourth distance D4 can be 0.2 to 0.7. For example, the ratio of the third distance D3 to the fourth distance D4 can be 0.3 to 0.8. For example, the ratio of the third distance D3 to the fourth distance D4 can be 0.45 to 0.65. For example, the ratio of the third distance D3 to the fourth distance D4 can be 0.5 to 0.58. For example, the ratio of the third distance D3 to the fourth distance D4 can be 0.55 to 0.6.

[0172] For example, such as Figures 1 to 2 As shown, a first isolation portion 211 and a second gap 214, or a second isolation portion 213 and a first gap 212, are provided between adjacent first color sub-pixels 11 and second color sub-pixels 12. This can isolate at least one layer of the light-emitting functional layer of adjacent first color sub-pixels and second color sub-pixels and the second electrode, while keeping the path between adjacent first color sub-pixels and second color sub-pixels at the gap position with a large width, reducing the resistance of the second electrode and reducing the power consumption of the display substrate when used for display.

[0173] For example, such as Figures 1 to 2 As shown, the second notch 214 is configured to expose at least one corner 1020 of the light-emitting area 101 of the second color sub-pixel 12. For example, each second notch 214 exposes one corner 1020 of the light-emitting area 101 of the second color sub-pixel 12, and different second notches 214 corresponding to the same second color sub-pixel 12 are configured to expose different corners 1020 of the light-emitting area 101. For example, the two corners 1020 included by the two second notches 214 corresponding to the same second color sub-pixel 13 can be two adjacent corners 1020 or two opposite corners 1020.

[0174] For example, such as Figures 1 to 2 As shown, the branch path 320 passing through the light-emitting area 101 of the second color sub-pixel 12 passes through the corner 1020 of the light-emitting area 101 to connect with the main path 310.

[0175] For example, such as Figures 1 to 2 As shown, the light-emitting area 101 of the first color sub-pixel 11 includes four sides, and each side is provided with a first isolation portion 211; the light-emitting area 101 of the second color sub-pixel 12 includes four sides, and each side is provided with a second isolation portion 213; the light-emitting area 101 of the third color sub-pixel 13 includes four sides, and each side is provided with a first isolation portion 211 or a second isolation portion 213.

[0176] For example, such as Figures 1 to 2As shown, the non-closed ring-shaped first isolation portion 211 includes a first sub-portion surrounding the three sides of the light-emitting area 101 of the first color sub-pixel 11, and a second sub-portion corresponding to the fourth side of the light-emitting area 101 of the first color sub-pixel 11. Both ends of the second sub-portion are provided with a gap between them and the first sub-portion, and the gap is a first notch 212.

[0177] For example, such as Figures 1 to 2 As shown, the non-closed ring-shaped second isolation portion 213 includes a third sub-portion surrounding the three sides of the light-emitting area 101 of the second color sub-pixel 12, and a fourth sub-portion corresponding to the fourth side of the light-emitting area 101 of the second color sub-pixel 12. The two ends of the fourth sub-portion are provided with a gap between the third sub-portion and the gap is the second notch 214.

[0178] For example, such as Figures 1 to 2 As shown, the relative positional relationship between the first sub-part and the second sub-part of the first isolation section 211 is the same as the relative positional relationship between the third sub-part and the fourth sub-part of the second isolation section 213.

[0179] For example, such as Figures 1 to 2 As shown, the light-emitting area 101 of the third color sub-pixel 13 includes two long sides and two short sides arranged opposite to each other. The second sub-part of the first isolation part 211 corresponds to the long side of the light-emitting area 101 of the third color sub-pixel 13, and the fourth sub-part of the second isolation part 213 corresponds to the short side of the light-emitting area 101 of the third color sub-pixel 13. The length of the second sub-part of the first isolation part 211 is greater than the length of the fourth sub-part of the second isolation part 213.

[0180] In a display substrate, if crosstalk between adjacent sub-pixels is reduced to a very low level, the resistance of the second electrode can easily become high; conversely, if the resistance of the second electrode is kept at a low level, it can easily lead to significant crosstalk between adjacent sub-pixels. In the display substrate provided in this disclosure, by providing isolation portions between two adjacent sub-pixels arranged in any direction, and by setting at least a portion of the isolation portions as non-closed ring structures, it is beneficial to reduce crosstalk between adjacent sub-pixels while ensuring that the resistance of the second electrode is not too high, thus balancing the crosstalk and power consumption parameters of the display substrate.

[0181] Isolation sections are set around each sub-pixel to prevent crosstalk between sub-pixels; at the same time, some paths need to be retained between adjacent sub-pixels, such as cathode channels, to reduce crosstalk between sub-pixels while ensuring that the cathode cross voltage is within a certain range.

[0182] For example, such as Figures 1 to 3As shown, the isolation section 210 includes portions whose extending direction intersects both the row and column directions. By setting the extending direction of the isolation section, the passage of the second electrode can include edges whose extending direction intersects both the row and column directions, which is beneficial to improving the convergence and connectivity of the passages extending in all directions of the second electrode.

[0183] For example, such as Figures 1 to 3 As shown, the isolation section 210 includes a portion whose extension direction is parallel to at least one of the row direction and the column direction.

[0184] By setting the extension direction of the isolation section, the extension direction of the passage of the second electrode can be controlled.

[0185] Figures 7-8 This is a partial planar structure schematic diagram of another display substrate provided according to an embodiment of the present disclosure. Figure 7 The first electrode of the light-emitting element is shown, but the second electrode is not shown. Figure 8 The second electrode of the light-emitting element is shown, but the first electrode of the light-emitting element is not shown. Figures 7 to 8 The display substrate shown is Figure 1 The difference in the display substrate shown is that, while keeping the pixel arrangement unchanged, the mesh pathway of the second electrode is changed by altering the shape and position of the isolation portion. Figure 8 The path of the pathway is schematically shown, but its shape is not. The second electrode in the display substrate includes a pathway of non-uniform width, where the orthographic projection of the widest point of the pathway onto the substrate overlaps with the orthographic projection of the light-emitting area onto the substrate. In this example, the substrate, insulating layer, defining structure, pixel defining portion, first opening, and light-emitting element are shown. Figure 1 The substrate, insulating layer, defining structure, pixel defining portion, first opening, and light-emitting element shown have the same features, and will not be described again here.

[0186] In some examples, such as Figure 8 As shown, the multiple trunk paths 310 also include a trunk path 310 passing through the first sub-pixel group 001. For example, the multiple trunk paths 310 also include a trunk path 310 passing through the light-emitting area 101 of the first color sub-pixel 11 and the light-emitting area 101 of the second color sub-pixel 12. Figure 8 The display substrate shown is illustrated with the Y direction as the first direction and the X direction as the second direction as an example. For instance, at least one main path 310 passes through the first sub-pixel group 001.

[0187] For example, such as Figure 8As shown, the main path 310 passes through the first sub-pixel group 001 and the second sub-pixel group 002. For example, the main path 310 passes through the light-emitting area 101 of the first color sub-pixel 11, the light-emitting area 101 of the second color sub-pixel 12, and the light-emitting area 101 of the third color sub-pixel 13. For example, one of the first main path 311 and the second main path 312 in the main path 310 passes through the first sub-pixel group 001 and the second sub-pixel group 002.

[0188] Figure 8 The main and branch paths in the display substrate shown are related to... Figure 2 The main path and branch path in the display substrate have the same definition, which will not be repeated here.

[0189] The display substrate provided in this disclosure sets multiple trunk paths, including trunk paths passing through the first sub-pixel group and the second sub-pixel group. Setting a large number of trunk paths helps to reduce the resistance of the second electrode, thereby reducing the power consumption of the display substrate when used for display.

[0190] In some examples, such as Figures 7 to 8 As shown, the isolation portion 210 includes a non-closed ring-shaped third isolation portion 215 surrounding at least one third color sub-pixel 13. The non-closed ring-shaped third isolation portion 215 exposes at least two third notches 216 at the corners 1030 of the light-emitting area 101 of the third color sub-pixel 13, and at least one main path 310 passes through the third notches 216. The aforementioned third isolation portion refers to the defining structure exposed by the second opening of the pixel defining pattern, and the aforementioned third notch refers to the defining structure covered by the pixel defining portion. The aforementioned third isolation portion refers to the portion of the defining structure surrounding the light-emitting area of ​​the third color sub-pixel that is exposed by the second opening.

[0191] For example, such as Figure 7 and Figure 8 As shown, the main path 310 passes through the corner 1030 of the third color sub-pixel 13.

[0192] For example, such as Figure 7 and Figure 8 As shown, the third isolation portion 215 corresponding to the same third color sub-pixel 13 is provided with four third gaps 216, so that the first main path 311 passes through two oppositely arranged third gaps 216, and the second main path 312 passes through the other two oppositely arranged third gaps 216. The first main path 311 and the second main path 312 intersect in the light-emitting area 101 of the third color sub-pixel 13.

[0193] For example, such as Figure 7 and Figure 8As shown, the light-emitting area 101 of the third color sub-pixel 13 includes four sides. The non-closed ring-shaped third isolation portion 215 includes alternately arranged fifth and sixth sub-parts, with a third gap 216 between the fifth and sixth sub-parts. The two fifth sub-parts and two sixth sub-parts are respectively arranged corresponding to the four sides of the light-emitting area 101. For example, the light-emitting area 101 of the third color sub-pixel 13 includes two oppositely arranged long sides and two oppositely arranged short sides. The fifth sub-parts correspond to the long sides, and the sixth sub-parts correspond to the short sides. The length of the fifth sub-part is greater than the length of the sixth sub-part. For example, the length of the fifth sub-part is not less than the length of the long side, and the length of the sixth sub-part is not less than the length of the short side.

[0194] In some examples, such as Figure 7 and Figure 8 As shown, the third isolation portion 215 is located between the first color sub-pixel 11 and the third color sub-pixel 13, which are adjacent to each other in the third direction, and both the first and second directions intersect with the third direction. For example, a fifth or sixth sub-portion of the third isolation portion 215 is provided between the first color sub-pixel 11 and the third color sub-pixel 13.

[0195] In some examples, such as Figure 7 and Figure 8 As shown, the distance between the edges of the third isolation section 215 and the light-emitting area 101 of the third color sub-pixel 13 that are close to each other is the fifth distance D5, and the distance between the edges of the third isolation section 215 and the light-emitting area 101 of the first color sub-pixel 11 that are close to each other is the sixth distance D6. The fifth distance D5 is less than the sixth distance D6.

[0196] For example, such as Figure 7 and Figure 8 As shown, the area of ​​the light-emitting region 101 of the first color sub-pixel 11 is larger than the area of ​​the light-emitting region 101 of the third color sub-pixel 13. The width of the overlap between the main path 310 and the light-emitting region 101 of the first color sub-pixel 11 is also larger than the width of the overlap between the main path 310 and the light-emitting region 101 of the third color sub-pixel 13. Only one isolation portion 210, such as a third isolation portion 215, is provided between adjacent first color sub-pixels 11 and third color sub-pixels 13. Furthermore, the third isolation portion 215 is closer to the third color sub-pixel 13, which helps to further increase the width at the overlap between the main path of the second electrode and the first color sub-pixel, thereby reducing the power consumption of the display substrate during display. In addition, the area of ​​the isolation portion projected onto the substrate in this display substrate is relatively small. For example, isolation portions are only provided at the locations where crosstalk is most likely to occur between adjacent sub-pixels, and the size of each isolation portion is small. This can greatly increase the size of the conduction path of the second electrode, making it suitable for scenarios with high power consumption requirements.

[0197] For example, the ratio of the fifth distance D5 to the sixth distance D6 can be 0.1 to 0.9. For example, the ratio of the fifth distance D5 to the sixth distance D6 can be 0.2 to 0.7. For example, the ratio of the fifth distance D5 to the sixth distance D6 can be 0.3 to 0.8. For example, the ratio of the fifth distance D5 to the sixth distance D6 can be 0.45 to 0.65. For example, the ratio of the fifth distance D5 to the sixth distance D6 can be 0.5 to 0.58. For example, the ratio of the fifth distance D5 to the sixth distance D6 can be 0.55 to 0.6.

[0198] In some examples, such as Figure 7 and Figure 8 As shown, the third isolation portion 215 is located between the second color sub-pixel 12 and the third color sub-pixel 13, which are adjacent to each other in the third direction, and both the first and second directions intersect with the third direction. For example, a fifth or sixth sub-portion of the third isolation portion 215 is provided between the second color sub-pixel 12 and the third color sub-pixel 13.

[0199] In some examples, such as Figure 7 and Figure 8 As shown, the distance between the edges of the third isolation section 215 and the light-emitting area 101 of the third color sub-pixel 13 that are close to each other is the fifth distance D5, and the distance between the edges of the third isolation section 215 and the light-emitting area 101 of the second color sub-pixel 12 that are close to each other is the seventh distance D7. The fifth distance D5 is less than the seventh distance D7.

[0200] For example, such as Figure 7 and Figure 8 As shown, the area of ​​the light-emitting region 101 of the second color sub-pixel 12 is larger than the area of ​​the light-emitting region 101 of the third color sub-pixel 13, and the width of the overlap between the main path 310 and the light-emitting region 101 of the second color sub-pixel 12 is greater than the width of the overlap between the main path 310 and the light-emitting region 101 of the third color sub-pixel 13. Only one isolation portion 210, such as a third isolation portion 215, is provided between adjacent second color sub-pixels 12 and third color sub-pixels 13, and the third isolation portion 215 is closer to the third color sub-pixel 13. This helps to further increase the width at the overlap between the main path of the second electrode and the second color sub-pixel, thereby reducing the power consumption of the display substrate when used for display.

[0201] For example, the ratio of the fifth distance D5 to the seventh distance D7 can be 0.1 to 0.9. For example, the ratio of the fifth distance D5 to the seventh distance D7 can be 0.2 to 0.7. For example, the ratio of the fifth distance D5 to the seventh distance D7 can be 0.3 to 0.8. For example, the ratio of the fifth distance D5 to the seventh distance D7 can be 0.45 to 0.65. For example, the ratio of the fifth distance D5 to the seventh distance D7 can be 0.5 to 0.58. For example, the ratio of the fifth distance D5 to the seventh distance D7 can be 0.55 to 0.6.

[0202] In the display substrate, crosstalk between sub-pixels mainly occurs along the straight edges of adjacent sub-pixels that are close to each other. However, the crosstalk between the corners of adjacent sub-pixels is less severe because the crosstalk path is longer. Therefore, even if no isolation part is provided between the corners of adjacent sub-pixels (such as the corner between the first color sub-pixel and the corner between the third color sub-pixel, or the corner between the second color sub-pixel and the corner between the third color sub-pixel), the risk of crosstalk between sub-pixels is still low. At the same time, it can also increase the conductive path of the second electrode and reduce the resistance.

[0203] In some examples, such as Figure 7 and Figure 8 As shown, the isolation section 210 also includes a fourth isolation section 217, which is located between adjacent first color sub-pixels 11 and second color sub-pixels 12 arranged along the second direction or along the first direction, so as to reduce the probability of crosstalk between the first color sub-pixels and the second color sub-pixels.

[0204] For example, such as Figure 7 and Figure 8 As shown, a gap is provided between the fourth isolation section 217 and the third isolation section 215. For example, two third isolation sections 215 are provided on each side of the fourth isolation section 217, such as two fifth sub-sections or two sixth sub-sections. This disclosure is not limited to this; the fourth isolation section can also be integrated with the third isolation section.

[0205] For example, such as Figure 7 and Figure 8 As shown, the corner 1010 of the light-emitting area 101 of the first color sub-pixel 11 and the corner 1020 of the light-emitting area 101 of the second color sub-pixel 12 are disposed opposite to each other, and the fourth isolation portion 217 is located between the corner 1010 of the first color sub-pixel 11 and the corner 1020 of the second color sub-pixel 12. The distance between the close corners of the adjacent first color sub-pixels and second color sub-pixels is small. By providing a fourth isolation portion between these two corners, and by spacing the fourth isolation portion from the third isolation portion, the probability of crosstalk between the first color sub-pixels and the second color sub-pixels can be reduced without causing an excessive increase in the resistance of the second electrode.

[0206] For example, such as Figure 7 and Figure 8 As shown, a fourth isolation portion 217 can be provided only between adjacent first color sub-pixels 11 and second color sub-pixels 12 arranged along the first direction, so that the main path 310 passes through the first color sub-pixels 11 and second color sub-pixels 12 arranged along the second direction. Of course, this disclosure is not limited to this; a fourth isolation portion can be provided only between adjacent first color sub-pixels and second color sub-pixels arranged along the second direction, so that the main path passes through the first color sub-pixels and second color sub-pixels arranged along the first direction.

[0207] For example, such as Figure 7 and Figure 8 As shown, the branch path 320 can pass through the light-emitting area 101 of the first color sub-pixel 11 or the light-emitting area 101 of the second color sub-pixel 12. For example, the two ends of the branch path 320 are respectively connected to two main paths 310 with the same extension direction, such as the two ends of the branch path 320 being connected to two first main paths 311, or the two ends of the branch path 320 being connected to two second main paths 312.

[0208] Figure 8 The diagram only schematically illustrates a branch path extending in the Y direction, but is not limited thereto. The second electrode may also include a branch path passing through the third isolation section and the fourth isolation section.

[0209] For example, such as Figure 7 and Figure 8 As shown, the distance between the fourth isolation portion 217 located between the first color sub-pixel 11 and the second color sub-pixel 12 and the adjacent edges of the light-emitting area 101 of the first color sub-pixel 11 is different from the distance between the fourth isolation portion 217 and the adjacent edges of the light-emitting area 101 of the second color sub-pixel 12. For example, multiple fourth isolation portions 217 arranged along the Y direction are all close to the light-emitting area 101 of the sub-pixel located on the same side therein, such that the odd-numbered fourth isolation portions 217 are closer to the light-emitting area 101 of the first color sub-pixel 11, and the even-numbered fourth isolation portions 217 are closer to the light-emitting area 101 of the second color sub-pixel 12.

[0210] This disclosure is not limited to providing only one fourth isolation section between adjacent first color sub-pixels and second color sub-pixels; it may also provide two or more fourth isolation sections.

[0211] Figures 9-10 This is a partial planar structure schematic diagram of another display substrate provided according to an embodiment of the present disclosure. Figure 9 The first electrode of the light-emitting element is shown, but the second electrode is not shown. Figure 10The second electrode of the light-emitting element is shown, but the first electrode of the light-emitting element is not shown. Figures 9 to 10 The display substrate shown is Figure 1 The difference in the display substrate shown is that, while keeping the pixel arrangement unchanged, the mesh pathway of the second electrode is changed by altering the shape and position of the isolation portion. Figure 10 The path of the passage is schematically shown, but the shape of the passage is not shown. The second electrode in the display substrate includes a passage with uneven width. The orthographic projection of the widest position of the passage on the substrate overlaps with the orthographic projection of the light-emitting area on the substrate. Figure 9 The main path in the display substrate shown is... Figure 2 The main pathways in the illustrated substrate have the same definition and will not be repeated here. In this example, the substrate, insulating layer, defining structure, pixel defining portion, first opening, and light-emitting element are... Figure 1 The substrate, insulating layer, defining structure, pixel defining portion, first opening, and light-emitting element shown have the same features, and will not be described again here.

[0212] In some examples, such as Figure 9 and Figure 10 As shown, the isolation portion 210 includes a non-closed ring-shaped first isolation portion 211 surrounding the light-emitting area 101 of at least one first color sub-pixel 11. The non-closed ring-shaped first isolation portion 211 is provided with at least two first gaps 212 exposing at least two sides 1113 of the light-emitting area 101 of the first color sub-pixel 11. The main passage 310 passes through the two first gaps 212. For example, one side 1113 of the light-emitting area 101 of the first color sub-pixel 11 is disposed opposite to one first gap 212. The aforementioned first isolation portion refers to the portion of the defining structure surrounding the light-emitting area of ​​the first color sub-pixel that is exposed by the second opening.

[0213] For example, such as Figure 9 and Figure 10 As shown, the multiple trunk paths 310 include a trunk path 310 passing through the light-emitting area 101 of the third color sub-pixel 13, and a trunk path 310 passing through the light-emitting areas 101 of the first color sub-pixel 11 and the light-emitting areas 101 of the second color sub-pixel 12. For example, the multiple trunk paths 310 include a first trunk path 311 and a second trunk path 312 passing through the light-emitting area 101 of the third color sub-pixel 13. The extension direction of the first trunk path 311 intersects the extension direction of the second trunk path 312, and the first trunk path 311 and the second trunk path 312 converge at the light-emitting area 101 of the third color sub-pixel 13.

[0214] For example, such as Figure 9 and Figure 10As shown, the multiple trunk paths 310 also include a third trunk path 313 that passes through the light-emitting area 101 of the first color sub-pixel 11. For example, the third trunk path 313 also passes through the light-emitting area 101 of the third color sub-pixel 13.

[0215] For example, such as Figure 9 and Figure 10 As shown, by setting the number of first gaps 212 in the first isolation portion 211 corresponding to the same first color sub-pixel 11, the number of third main paths 313 passing through the light-emitting area 101 of the first color sub-pixel 11 can be adjusted. For example, the same first color sub-pixel 11 corresponds to five first gaps 212, of which two first gaps 212 are set opposite each other in a third direction, such as the V direction, two first gaps 212 are set opposite each other in a fourth direction, such as the W direction, and the fifth first gap 212 avoids the connecting electrode 112 of the first electrode 110 of the first color sub-pixel 11. If the fifth first gap 212 exposes a corner 1010 of the light-emitting area 101 of the first color sub-pixel 11, then the same first color sub-pixel 11 is passed through by a third main path 313 extending in a third direction and a third main path 313 extending in a fourth direction. For example, no first isolation portion 211 is provided between the first color sub-pixel 11 and the third color sub-pixel 13, so the third main path can pass through the light-emitting area of ​​the first color sub-pixel, the first gap and the light-emitting area of ​​the third color sub-pixel in sequence.

[0216] For example, such as Figure 9 and Figure 10 As shown, at least one corner 1010 of the light-emitting area 101 of the first color sub-pixel 11 is surrounded by a first isolation portion 211, and the first isolation portion 211 is located between adjacent first color sub-pixels 11 and second color sub-pixels 12, so as to reduce the probability of crosstalk between the first color sub-pixels and the second color sub-pixels.

[0217] For example, such as Figure 9 and Figure 10 As shown, the distance between the first isolation portion 211 disposed between the first color sub-pixel 11 and the second color sub-pixel 12 and the adjacent edges of the light-emitting area 101 of the first color sub-pixel 11 is the first sub-distance, and the distance between the first isolation portion 211 and the adjacent edges of the light-emitting area 101 of the second color sub-pixel 12 is the second sub-distance. The first sub-distance is smaller than the second sub-distance, that is, the first isolation portion 211 is closer to the light-emitting area 101 of the first color sub-pixel 11.

[0218] For example, such as Figure 9 and Figure 10As shown, the first isolation portion 211 includes a plurality of sub-portions spaced apart, and a first gap 212 is provided between adjacent sub-portions. For example, the size of the first gap 212 is smaller than the length of the edge 1113 of the light-emitting area 101 of the first color sub-pixel 11.

[0219] In some examples, such as Figure 9 and Figure 10 As shown, the isolation portion 210 includes a non-closed ring-shaped second isolation portion 213 surrounding at least one second color sub-pixel 12. The non-closed ring-shaped second isolation portion 213 is provided with at least two second notches 214 exposing at least two sides 1123 of the light-emitting area 101 of the second color sub-pixel 11. The first isolation portion 211 is disposed opposite to the second isolation portion 213. The aforementioned second isolation portion refers to the portion of the defining structure surrounding the light-emitting area of ​​the second color sub-pixel that is exposed by the second opening.

[0220] For example, such as Figure 9 and Figure 10 As shown, the second isolation portion 213 is located between the first color sub-pixel 11 and the second color sub-pixel 12, such that the first isolation portion 211 and the second isolation portion 213 are provided between the first color sub-pixel 11 and the second color sub-pixel 12.

[0221] For example, such as Figure 9 and Figure 10 As shown, the multiple trunk paths 310 also include a fourth trunk path 314 that passes through the light-emitting area 101 of the second color sub-pixel 12. For example, the fourth trunk path 314 also passes through the light-emitting area 101 of the third color sub-pixel 13.

[0222] For example, such as Figure 9 and Figure 10 As shown, by setting the number of second gaps 214 provided in the second isolation portion 213 corresponding to the same second color sub-pixel 12, the number of fourth main passages 314 passing through the light-emitting area 101 of the second color sub-pixel 12 can be adjusted. For example, the same second color sub-pixel 12 corresponds to five second gaps 214, of which two second gaps 214 are set opposite each other in a third direction, such as the V direction, two second gaps 214 are set opposite each other in a fourth direction, such as the W direction, and the fifth second gap 214 avoids the connecting electrode 112 of the first electrode 110 of the second color sub-pixel 12. If the fifth second gap 214 exposes a corner 1020 of the light-emitting area 101 of the second color sub-pixel 12, then the same second color sub-pixel 12 is passed through by a fourth main passage 314 extending in a third direction and a fourth main passage 314 extending in a fourth direction. For example, no second isolation section 213 is provided between the second color sub-pixel 12 and the third color sub-pixel 13, so that the fourth main path can pass through the light-emitting area of ​​the second color sub-pixel, the second gap and the light-emitting area of ​​the third color sub-pixel in sequence.

[0223] For example, such as Figure 9 and Figure 10 As shown, the first main path 311 passes through the gap between the first isolation section 211 and the second isolation section 213 and the light-emitting area 101 of the third color sub-pixel 13.

[0224] For example, such as Figure 9 and Figure 10 As shown, at least one corner 1020 of the light-emitting area 101 of the second color sub-pixel 12 is surrounded by a second isolation portion 213, and the second isolation portion 213 is located between adjacent first color sub-pixels 11 and second color sub-pixels 12 to reduce the probability of crosstalk between the first color sub-pixels and the second color sub-pixels. By providing two isolation portions between the first color sub-pixels and the second color sub-pixels, the situation where the film layers of the first color sub-pixels and the second color sub-pixels that should be disconnected are not disconnected can be avoided.

[0225] For example, such as Figure 9 and Figure 10 As shown, the distance between the second isolation portion 213 disposed between the first color sub-pixel 11 and the second color sub-pixel 12 and the adjacent edges of the light-emitting area 101 of the first color sub-pixel 11 is the third sub-distance, and the distance between the second isolation portion 213 and the adjacent edges of the light-emitting area 101 of the second color sub-pixel 12 is the fourth sub-distance. The third sub-distance is greater than the fourth sub-distance, that is, the second isolation portion 213 is closer to the light-emitting area 101 of the second color sub-pixel 12.

[0226] For example, such as Figure 9 and Figure 10 As shown, the second isolation portion 213 includes a plurality of sub-portions spaced apart, and a second gap 214 is provided between adjacent sub-portions. For example, the size of the second gap 214 is smaller than the length of the edge 1123 of the light-emitting area 101 of the second color sub-pixel 12.

[0227] Figure 10 The branch path is not shown. For example, the second electrode of the display substrate may include a branch path that passes through the connecting electrode of the first electrode of the first color sub-pixel. One end of the branch path may be connected to the second main path 312, and the other end of the branch path may be connected to the third main path 313. Alternatively, the second electrode of the display substrate may also include a branch path that passes through the connecting electrode of the first electrode of the second color sub-pixel. One end of the branch path may be connected to the second main path 312, and the other end of the branch path may be connected to the fourth main path 314.

[0228] The embodiments disclosed herein are not limited thereto. When a first isolation portion and a second isolation portion are provided between a first color sub-pixel and a second color sub-pixel, at least one of the first isolation portion and the second isolation portion may also be provided with a small gap. The gap is only opposite to the edge of the light-emitting area of ​​the sub-pixel and not opposite to the corner of the light-emitting area of ​​the sub-pixel.

[0229] Since crosstalk is prone to occur between the first color sub-pixel and the second color sub-pixel, such as between the opposite corners of the first color sub-pixel and the second color sub-pixel, while the probability of crosstalk occurring at other locations is low, the display substrate provided in this disclosure reduces the probability of crosstalk by providing at least two isolation portions between the opposite corners of the first color sub-pixel and the second color sub-pixel, and not providing isolation portions at the corresponding positions of the edges of the first color sub-pixel and the second color sub-pixel, while minimizing the increase in the resistance of the second electrode, thereby achieving a better balance between crosstalk and power consumption for the path of the second electrode.

[0230] Figures 11-12 This is a partial planar structure schematic diagram of another display substrate provided according to an embodiment of the present disclosure. Figure 11 The first electrode of the light-emitting element is shown, but the second electrode is not shown. Figure 12 The second electrode of the light-emitting element is shown, but the first electrode of the light-emitting element is not shown. Figures 11 to 12 The display substrate shown is Figure 1 The difference in the display substrate shown is that, while keeping the pixel arrangement unchanged, the mesh pathway of the second electrode is changed by altering the shape and position of the isolation portion. Figure 12 The path of the pathway is schematically shown, but its shape is not. The second electrode in the display substrate includes a pathway of non-uniform width, where the orthographic projection of the widest point of the pathway onto the substrate overlaps with the orthographic projection of the light-emitting area onto the substrate. In this example, the substrate, insulating layer, defining structure, pixel defining portion, first opening, and light-emitting element are shown. Figure 1 The substrate, insulating layer, defining structure, pixel defining portion, first opening, and light-emitting element shown have the same features, and will not be described again here.

[0231] In some examples, such as Figure 11 and Figure 12As shown, the isolation portion 210 includes a non-closed ring-shaped first isolation portion 211 surrounding at least one first color sub-pixel 11. The non-closed ring-shaped first isolation portion 211 is provided with at least two first notches 212 exposing the corners 1010 of the light-emitting area 101 of the first color sub-pixel 11. The at least two first notches 212 include two first notches 212 disposed opposite each other in a first direction, through which the main passage 310 passes. The aforementioned first isolation portion refers to the defining structure exposed by the second opening of the pixel defining pattern, and the aforementioned first notch refers to the defining structure covered by the pixel defining portion. The aforementioned first isolation portion refers to the portion of the defining structure surrounding the light-emitting area of ​​the first color sub-pixel that is exposed by the second opening.

[0232] For example, such as Figure 11 and Figure 12 As shown, the isolation portion 210 surrounding each first color sub-pixel 11 is a first isolation portion 211. For example, the first isolation portion 211 is located between adjacent first color sub-pixels 11 and second color sub-pixels 12 arranged in the second direction. For example, the first isolation portion 211 includes at least one corner 1010 of the light-emitting area 101 of the first color sub-pixel 11 and at least one edge.

[0233] For example, such as Figure 11 and Figure 12 As shown, the main path 310 passes through the light-emitting area 101 of the third color sub-pixel 13 and the light-emitting area 101 of the first color sub-pixel 11. For example, the main path 310 includes a first main path 311 and a second main path 312 whose extension directions intersect, and the first main path 311 and the second main path 312 meet in the light-emitting area 101 of the third color sub-pixel 13.

[0234] The display substrate provided in this embodiment has a main path that passes through both the third color sub-pixel and the first color sub-pixel, which can further reduce the resistance of the second electrode to reduce power consumption.

[0235] In some examples, such as Figure 11 and Figure 12 As shown, at least a portion of the first isolation section 210 is located between a first color sub-pixel 11 and a third color sub-pixel 13 that are adjacent in a third direction, and both the first and second directions intersect with the third direction. For example, the third direction can be... Figure 4A The distance between the edges of the first isolation portion 210 and the light-emitting area 101 of the first color sub-pixel 11 that are close to each other is the first distance D1, and the distance between the edges of the first isolation portion 210 and the light-emitting area 101 of the third color sub-pixel 13 that are close to each other is the second distance D2. The first distance D1 is less than the second distance D2. The edge of the first isolation portion refers to the edge of the first isolation portion exposed by the second opening of the pixel-defined pattern.

[0236] For example, only one isolation portion 210, such as the first isolation portion 211, is provided between the adjacent first color sub-pixel 11 and the third color sub-pixel 13. The first isolation portion 211 is closer to the first color sub-pixel 11, which helps to increase the width of the intersection of the main path of the second electrode and the third color sub-pixel, thereby reducing the power consumption of the display substrate when it is used for display.

[0237] For example, the ratio of the first distance D1 to the second distance D2 can be 0.1 to 0.9. For example, the ratio of the first distance D1 to the second distance D2 can be 0.2 to 0.7. For example, the ratio of the first distance D1 to the second distance D2 can be 0.3 to 0.8. For example, the ratio of the first distance D1 to the second distance D2 can be 0.45 to 0.65. For example, the ratio of the first distance D1 to the second distance D2 can be 0.5 to 0.58. For example, the ratio of the first distance D1 to the second distance D2 can be 0.55 to 0.6.

[0238] For example, such as Figures 11 to 12 As shown, the first notch 212 is configured to expose at least one corner 1010 of the light-emitting area 101 of the first color sub-pixel 11. For example, different first notches 212 corresponding to the same first color sub-pixel 11 are configured to expose different corners 1010 of the light-emitting area 101.

[0239] For example, such as Figure 11 and Figure 12 As shown, the first notch 212 exposes the connection electrode 111 of the first electrode 110.

[0240] In some examples, such as Figure 11 and Figure 12 As shown, the isolation portion 210 includes a non-closed ring-shaped second isolation portion 213 surrounding at least one second color sub-pixel 12. The non-closed ring-shaped second isolation portion 213 is provided with at least two second notches 214 exposing the corner 1020 of the light-emitting area 101 of the second color sub-pixel 12. The at least two second notches 214 include two second notches 214 disposed opposite each other in a first direction, and two second notches 214 and a first notch 212 disposed opposite each other in the first direction, such that a main passage 310 passes through the first notch 212 and the second notch 214. For example, the main passage 310 sequentially passes through the light-emitting area 101 of the first color sub-pixel 11, the first notch 212, the second notch 214, and the light-emitting area 101 of the second color sub-pixel 12. The aforementioned second isolation portion refers to the portion of the defining structure surrounding the light-emitting area of ​​the second color sub-pixel that is exposed by the second opening.

[0241] For example, such as Figure 11 and Figure 12As shown, a first isolation portion 211 and a second isolation portion 213 are provided between adjacent first color sub-pixels 11 and second color sub-pixels 12 arranged in the second direction. No isolation portion 210 is provided between adjacent first color sub-pixels 11 and second color sub-pixels 12 arranged in the first direction. While reducing crosstalk between first color sub-pixels and second color sub-pixels in the second direction, a charge path for the second electrode is provided in the first direction, which is beneficial to balancing crosstalk and power consumption.

[0242] In some examples, such as Figure 11 and Figure 12 As shown, the main path 310 passes through the gap between the first isolation portion 211 and the second isolation portion 213 that are adjacent to each other in the second direction, and also through the gap between the first isolation portion 211 and the second isolation portion 213 that are adjacent to each other in the first direction. For example, the main path 310 that passes through the gap between the first isolation portion 211 and the second isolation portion 213 that are adjacent to each other passes through the light-emitting area 101 of the third color sub-pixel 13.

[0243] In some examples, such as Figure 11 and Figure 12 As shown, at least a portion of the second isolation section 213 is located between the second color sub-pixel 12 and the third color sub-pixel 13, which are adjacent in the third direction, and both the first and second directions intersect with the third direction. For example, the third direction can be... Figure 4A The distance between the adjacent edges of the second isolation portion 213 and the light-emitting area 101 of the second color sub-pixel 12 is a third distance D3, and the distance between the adjacent edges of the second isolation portion 213 and the light-emitting area 101 of the third color sub-pixel 13 is a fourth distance D4. The third distance D3 is less than the fourth distance D4. The edge of the second isolation portion mentioned above refers to the edge of the second isolation portion exposed by the second opening of the pixel-defined pattern.

[0244] For example, only one isolation portion 210, such as the second isolation portion 213, is provided between the adjacent second color sub-pixel 12 and the third color sub-pixel 13. The second isolation portion 213 is closer to the second color sub-pixel 12, which helps to increase the width at the intersection of the main path of the second electrode and the third color sub-pixel, thereby reducing the power consumption of the display substrate when it is used for display.

[0245] For example, the ratio of the third distance D3 to the fourth distance D4 can be 0.1 to 0.9. For example, the ratio of the third distance D3 to the fourth distance D4 can be 0.2 to 0.7. For example, the ratio of the third distance D3 to the fourth distance D4 can be 0.3 to 0.8. For example, the ratio of the third distance D3 to the fourth distance D4 can be 0.45 to 0.65. For example, the ratio of the third distance D3 to the fourth distance D4 can be 0.5 to 0.58. For example, the ratio of the third distance D3 to the fourth distance D4 can be 0.55 to 0.6.

[0246] In some examples, such as Figure 11 and Figure 12 As shown, the interval between the first isolation portion 211 and the second isolation portion 213 adjacent to each other in the first direction is not less than the size of the first gap 212 in the second direction and the size of the second gap 214 in the second direction.

[0247] By adjusting the spacing between the first isolation portion and the second isolation portion that are adjacent to each other in the first direction, the width of the path of the second electrode between them can be increased as much as possible so that the resistance of the second electrode is not too high, thereby helping to reduce power consumption.

[0248] Figures 13A-13B This is a partial planar structure schematic diagram of another display substrate provided according to an embodiment of the present disclosure. Figure 13A The first electrode of the light-emitting element is shown, but the second electrode is not shown. Figure 13B The second electrode of the light-emitting element is shown, but the first electrode of the light-emitting element is not shown. Figures 13A to 13B The display substrate shown is Figure 1 The difference in the display substrate shown is that, while keeping the pixel arrangement unchanged, the mesh pathway of the second electrode is changed by altering the shape and position of the isolation portion. Figure 13B The path of the pathway is schematically shown, but its shape is not. The second electrode in the display substrate includes a pathway of non-uniform width, where the orthographic projection of the widest point of the pathway onto the substrate overlaps with the orthographic projection of the light-emitting area onto the substrate. In this example, the substrate, insulating layer, defining structure, pixel defining portion, first opening, and light-emitting element are shown. Figure 1 The substrate, insulating layer, defining structure, pixel defining portion, first opening, and light-emitting element shown have the same features, and will not be described again here.

[0249] In some examples, such as Figure 13A and Figure 13BAs shown, the isolation portion 210 includes a non-closed ring-shaped third isolation portion 215 surrounding at least one third color sub-pixel 13. The non-closed ring-shaped third isolation portion 215 is provided with at least two third notches 216 exposing the corners 1030 of the light-emitting area 101 of the third color sub-pixel 13. The at least two third notches 216 include two third notches 216 arranged opposite each other. The main passage 310 passes through the two third notches 216 arranged opposite each other, the interval between adjacent third isolation portions 215 in a first direction, and the interval between adjacent third isolation portions 215 in a second direction. The aforementioned third isolation portion refers to the portion of the defining structure surrounding the light-emitting area of ​​the third color sub-pixel that is exposed by the second opening.

[0250] For example, such as Figure 13A and Figure 13B As shown, the main path 310 passes through the light-emitting area 101 of the alternately arranged third notch 216 and the third color sub-pixel 13.

[0251] For example, such as Figure 13A and Figure 13B As shown, the main path 310 includes a first main path 311 and a second main path 312 whose extension directions intersect. One of the first main path 311 and the second main path 312 passes through the third gap 216 and the light-emitting area 101 of the third color sub-pixel 13. The other of the first main path 311 and the second main path 312 passes through the gap between adjacent third isolation portions 215, the first color sub-pixel 11, and the second color sub-pixel 12. For example, a portion of the first main path 311 passes through the gap between adjacent third isolation portions 215, the first color sub-pixel 11, and the second color sub-pixel 12.

[0252] In some examples, such as Figure 13A and Figure 13B As shown, the maximum size of the spacing between adjacent third isolation portions 215 in the first direction is not greater than the maximum size of the third gap 216 in the first direction. By setting the third gap to be larger than the spacing between the third isolation portions, the width of the path through the second electrode of the third color sub-pixel can be increased as much as possible while the width of the path through the second electrode of the first color sub-pixel and the second color sub-pixel can be reduced as much as possible. This balances crosstalk and power consumption while minimizing crosstalk between adjacent first color sub-pixels and second color sub-pixels.

[0253] For example, such as Figure 13A and Figure 13BAs shown, the isolation portion 210 also includes a first isolation portion 211 in a non-closed loop surrounding the first color sub-pixel 11 and a second isolation portion 213 in a non-closed loop surrounding the second color sub-pixel 12. For example, the first isolation portion 211 is provided with a first notch 212, and the second isolation portion 213 is provided with a second notch 214. For example, a second opening 420 for exposing the pixel-defining pattern of the third isolation portion 215 also exposes the first isolation portion 211 and the second isolation portion 213.

[0254] For example, such as Figure 13A and Figure 13B As shown, the main path 310 sequentially passes through the first notch 212, the light-emitting area 101 of the first color sub-pixel 11, the second notch 214, and the light-emitting area 101 of the second color sub-pixel 12. For example, the first main path 311 sequentially passes through the first notch 212, the light-emitting area 101 of the first color sub-pixel 11, the second notch 214, and the light-emitting area 101 of the second color sub-pixel 12. For example, the second main path 312 sequentially passes through the first notch 212, the light-emitting area 101 of the first color sub-pixel 11, the second notch 214, and the light-emitting area 101 of the second color sub-pixel 12.

[0255] For example, such as Figure 13A As shown, a second opening 420 of the pixel-defined pattern 400 includes a first isolation portion surrounding a first color sub-pixel 11, a second isolation portion surrounding a second color sub-pixel 12, and a third isolation portion surrounding a third color sub-pixel 13, as the second opening 420 exposes the three isolation portions.

[0256] Figure 14A This is a partial planar structure schematic diagram of another display substrate provided according to an embodiment of the present disclosure. Figure 14B for Figure 14A The image shown is a partial enlarged view of the display substrate. Figure 14A The path of the second electrode in the display substrate shown can be connected to... Figure 13B The pathways are the same, so I will not repeat them here. Figure 13A The display substrate shown is Figure 14A The only difference in the display substrates shown is whether the defining structure 200 surrounding the third color sub-pixel 13 is exposed by the second opening 420 of the pixel defining pattern 400. For example, Figure 14A In the display substrate shown, the second opening 420 exposes two types of isolation portions, or only one type of isolation portion.

[0257] For example, such as Figures 14A-14BAs shown, the light-emitting area of ​​the first color sub-pixel 11 includes multiple corners; the isolation portion 210 includes a non-closed ring-shaped first isolation portion 211 surrounding at least one first color sub-pixel 11, the non-closed ring-shaped first isolation portion 211 is provided with at least two first notches 212 exposing at least two corners of the multiple corners, the at least two first notches 212 including two first notches 212 of different sizes.

[0258] For example, such as Figures 14A-14B As shown, the light-emitting area 101 of the first color sub-pixel 11 includes four corners, which include two first corners 1021 disposed opposite each other in a first direction and two second corners 1022 disposed opposite each other in a second direction. The isolation portion 210 includes a non-closed ring-shaped first isolation portion 211 surrounding at least one first color sub-pixel 11. The non-closed ring-shaped first isolation portion 211 is provided with four first notches 212 exposing the four corners, and at least two of the four first notches 212 have different sizes.

[0259] For example, such as Figures 14A-14B As shown, the size of the first notch 212 corresponding to the connecting electrode of the first electrode is relatively large.

[0260] For example, such as Figures 14A-14B As shown, the size of the first notch 212 exposing the first corner 1021 is different from the size of the first notch 212 exposing the second corner 1022. For example, the first notch 212 exposing the first corner 1021 corresponds to the connecting electrode of the first electrode, and the size of the first notch 212 exposing the first corner 1021 is larger than the size of the first notch 212 exposing the second corner 1022. By setting the size of the first notch exposing the second corner to be smaller, it is beneficial to reduce crosstalk between the first color sub-pixels and the second color sub-pixels arranged along the second direction.

[0261] For example, such as Figures 14A-14B As shown, the light-emitting area 101 of the second color sub-pixel 12 includes multiple corners; the isolation portion 210 includes a non-closed ring-shaped second isolation portion 213 surrounding at least one second color sub-pixel 12, the non-closed ring-shaped second isolation portion 213 is provided with at least two second notches 214 exposing at least two corners of the multiple corners, the at least two second notches 214 including two second notches 214 of different sizes.

[0262] For example, such as Figures 14A-14BAs shown, the light-emitting area 101 of the second color sub-pixel 12 includes four corners, the four corners including two third corners 1023 disposed opposite to each other in a first direction and two fourth corners 1024 disposed opposite to each other in a second direction; the isolation portion 210 includes a non-closed ring-shaped second isolation portion 213 surrounding at least one second color sub-pixel 12, the non-closed ring-shaped second isolation portion 213 is provided with four second notches 214 exposing the four corners, at least two of the four second notches 214 having different sizes.

[0263] For example, such as Figures 14A-14B As shown, the size of the second notch 214 exposing the third corner 1023 is different from the size of the second notch 214 exposing the fourth corner 1024.

[0264] For example, such as Figures 14A-14B As shown, the second notch 214 corresponding to the connecting electrode of the first electrode has a larger size.

[0265] For example, the second notch 214 exposing the third corner 1023 corresponds to the connecting electrode of the first electrode, and the size of the second notch 214 exposing the third corner 1023 is larger than the size of the second notch 214 exposing the fourth corner 1024. By setting the size of the second notch exposing the fourth corner to be smaller, it is beneficial to reduce crosstalk between the first color sub-pixels and the second color sub-pixels arranged along the second direction.

[0266] Figures 15-16 This is a partial planar structure schematic diagram of another display substrate provided according to an embodiment of the present disclosure. Figure 15 The first electrode of the light-emitting element is shown, but the second electrode is not shown. Figure 16 The second electrode of the light-emitting element is shown, but the first electrode of the light-emitting element is not shown. Figures 15 to 16 The display substrate shown is Figure 1 The difference between the display substrates shown lies in the pixel arrangement and the shape and position of the isolation parts. Figure 16 The path of the pathway is schematically shown, but its shape is not. The second electrode in the display substrate includes a pathway of non-uniform width, where the orthographic projection of the widest point of the pathway onto the substrate overlaps with the orthographic projection of the light-emitting area onto the substrate. In this example, the substrate, insulating layer, and light-emitting element are... Figure 1 The substrate, insulating layer, and light-emitting element shown have the same characteristics, which will not be described again here.

[0267] For example, such as Figure 15 and Figure 16As shown, sub-pixel 10 includes a first color sub-pixel 11, a second color sub-pixel 12, and a third color sub-pixel 13. For example, the first color sub-pixel 11 can be a blue sub-pixel emitting blue light, the second color sub-pixel 12 can be a red sub-pixel emitting red light, and the third color sub-pixel 13 can be a green sub-pixel emitting green light. For example, the light-emitting area 101 of the first color sub-pixel 11 and the light-emitting area 101 of the second color sub-pixel 12 are both hexagonal in shape, and the light-emitting area 101 of the third color sub-pixel 13 is quadrilateral in shape. For example, the first color sub-pixel 11, the second color sub-pixel 12, and the third color sub-pixel 13 are arranged sequentially and cyclically in one direction to form a sub-pixel group, such as being arranged cyclically in the Y direction to form a sub-pixel group. Multiple pixel groups are arranged in another direction, such as the X direction, and are staggered in the aforementioned direction, such as the Y direction. For example, multiple sub-pixels 10 can be arranged in a Delta pixel arrangement.

[0268] For example, there are intervals between the defining structures 200 surrounding different sub-pixels 10. For example, the defining structure 200 surrounding each sub-pixel 10 can be a closed loop structure. For example, the defining structure 200 surrounding each sub-pixel 10 can surround the first electrode 110 and cover a ring edge of the first electrode 110.

[0269] For example, such as Figure 15 and Figure 16 As shown, the portion of the defining structure 200 surrounding each sub-pixel 10 exposed by the second opening 402 of the pixel defining pattern includes an isolation portion 210. The defining structure in this example may have the same stacked structure features as the defining structure in the display substrate in the above example, and will not be described again here.

[0270] For example, such as Figure 15 and Figure 16 As shown, the multiple pathways 300 include multiple trunk pathways 310 and multiple branch pathways 320. Figure 16 The main and branch paths in the display substrate shown are related to... Figure 2 The main path and branch path in the display substrate have the same definition, which will not be repeated here.

[0271] For example, such as Figure 15 and Figure 16 As shown, the extension directions of the multiple main paths 310 are all the same. For example, both ends of the branch path 320 can be connected to the main path 310 extending along the X direction.

[0272] For example, such as Figure 15 and Figure 16As shown, the main path 310 passes through the light-emitting area 101 of the first color sub-pixel 11. For example, a branch path 320 may pass through at least one of the light-emitting areas 101 of the first color sub-pixel 11, the light-emitting area 101 of the second color sub-pixel 12, and the light-emitting area 101 of the third color sub-pixel 13.

[0273] For example, such as Figure 15 and Figure 16 As shown, the defining structure 200 corresponding to one edge of the light-emitting area 101 of the first color sub-pixel 11 is exposed by the second opening 420 to form an isolation portion 210. The defining structures 200 corresponding to the other edges of the light-emitting area 101 are covered by the pixel defining portion 401. For example, the isolation portion 210 is disposed between the first color sub-pixel 11 and the second color sub-pixel 12 in the same sub-pixel group. By providing an isolation portion between the first color sub-pixel and the second color sub-pixel, the probability of crosstalk between the first color sub-pixel and the second color sub-pixel can be reduced.

[0274] For example, the main path 310 of the second electrode 120 passes through the other sides of the light-emitting area 101 of the first color sub-pixel 11.

[0275] For example, such as Figure 15 and Figure 16 As shown, the limiting structures 200 corresponding to the three sides of the light-emitting area 101 of the second color sub-pixel 12 are exposed by the second opening 420 to form an isolation portion 210. The limiting structures 200 corresponding to the other sides of the light-emitting area 101 are covered by the pixel limiting portion 401. For example, the isolation portion 210 is located between the second color sub-pixel 12 and the third color sub-pixel 13 in the same sub-pixel group, and between the first color sub-pixel 11 and the second color sub-pixel 12 in adjacent sub-pixel groups. By setting isolation portions between the third color sub-pixel and the second color sub-pixel in the same sub-pixel group, and between the first color sub-pixel and the second color sub-pixel in adjacent sub-pixel groups, the probability of crosstalk between the third color sub-pixel and the second color sub-pixel in the same sub-pixel group and the probability of crosstalk between the first color sub-pixel and the second color sub-pixel in adjacent sub-pixel groups can be reduced.

[0276] For example, the branch path 320 of the second electrode 120 passes through the other sides of the light-emitting area 101 of the second color sub-pixel 12 and the interval between adjacent first color sub-pixels 11 and second color sub-pixels 12 in the same group.

[0277] For example, such as Figure 15 and Figure 16As shown, the limiting structures 200 corresponding to each side of the light-emitting area 101 of the third color sub-pixel 13 are all exposed by the second opening 420 to form an isolation portion 210, and at least two sides are covered by the pixel limiting portion 401 so that the isolation portion 210 is formed as a non-closed ring. For example, the isolation portion 210 is located between the first color sub-pixel 11 and the third color sub-pixel 13 in the same sub-pixel group, and between the third color sub-pixel 13 and the second color sub-pixel 12 in adjacent sub-pixel groups, and between the third color sub-pixel 13 and the first color sub-pixel 11 in adjacent sub-pixel groups. By providing an isolation portion between the third color sub-pixel and the first color sub-pixel in the same sub-pixel group, and between the first color sub-pixel and the second color sub-pixel in adjacent sub-pixel groups and between the third color sub-pixel and the first color sub-pixel in adjacent sub-pixel groups, the probability of crosstalk between adjacent sub-pixels in the same sub-pixel group and the probability of crosstalk between adjacent sub-pixels in adjacent sub-pixel groups can be reduced.

[0278] For example, the branch path 320 of the second electrode 120 passes through the notch provided in the non-closed ring-shaped isolation portion 210 of the light-emitting area 101 of the third color sub-pixel 13.

[0279] In the display substrate provided in this example, by setting a minimum number of isolation sections, a highly efficient isolation effect is achieved to reduce crosstalk, while the resistance of the second electrode does not increase significantly.

[0280] Figures 17-18 This is a partial planar structure schematic diagram of another display substrate provided according to an embodiment of the present disclosure. Figure 17 The first electrode of the light-emitting element is shown, but the second electrode is not shown. Figure 18 The second electrode of the light-emitting element is shown, but the first electrode of the light-emitting element is not shown. Figures 15 to 18 The display substrate shown is Figure 1 The difference between the display substrates shown lies in the pixel arrangement and the shape and position of the isolation parts. Figure 18 The path of the pathway is schematically shown, but its shape is not. The second electrode in the display substrate includes a pathway of non-uniform width, where the orthographic projection of the widest point of the pathway onto the substrate overlaps with the orthographic projection of the light-emitting area onto the substrate. In this example, the substrate, insulating layer, and light-emitting element are... Figure 1 The substrate, insulating layer, and light-emitting element shown have the same characteristics, which will not be described again here.

[0281] For example, such as Figure 17 and Figure 18As shown, sub-pixel 10 includes a first color sub-pixel 11, a second color sub-pixel 12, and a third color sub-pixel 13. For example, the first color sub-pixel 11 can be a blue sub-pixel emitting blue light, the second color sub-pixel 12 can be a red sub-pixel emitting red light, and the third color sub-pixel 13 can be a green sub-pixel emitting green light. For example, the light-emitting areas 101 of the first color sub-pixel 11, the second color sub-pixel 12, and the third color sub-pixel 13 are all quadrilateral in shape. For example, the first color sub-pixel 11 and the second color sub-pixel 12 are arranged alternately in one direction, such as alternating along the Y direction to form a first sub-pixel group, and the angle between the line connecting the centers of the light-emitting areas 101 of the first color sub-pixel 11 and the straight line extending along the Y direction is relatively large, such as 3 to 10 degrees. For example, the third color sub-pixel 13 is arranged along the aforementioned direction, such as the Y direction, to form a second sub-pixel group, and the first sub-pixel group and the second sub-pixel group are arranged alternately in another direction, such as the X direction. For example, multiple sub-pixels 10 are arranged in a tripod pixel arrangement.

[0282] For example, such as Figure 17 and Figure 18 As shown, the defining structure 200 surrounding different sub-pixels 10 can be integrally set or spaced apart. For example, the defining structure 200 surrounding each sub-pixel 10 can surround the first electrode 110 and cover a ring edge of the first electrode 110.

[0283] For example, such as Figure 17 and Figure 18 As shown, the portion of the defining structure 200 surrounding each sub-pixel 10 exposed by the second opening 402 of the pixel defining pattern includes an isolation portion 210. The defining structure in this example may have the same stacked structure features as the defining structure in the display substrate in the above example, and will not be described again here.

[0284] For example, such as Figure 17 and Figure 18 As shown, the multiple pathways 300 include multiple trunk pathways 310 and multiple branch pathways 320. Figure 18 The main and branch paths in the display substrate shown are related to... Figure 2 The main path and branch path in the display substrate have the same definition, which will not be repeated here.

[0285] For example, such as Figure 17 and Figure 18As shown, the multiple main pathways 310 include a first main pathway 311 and a second main pathway 312 whose extension directions intersect. The first main pathway 311 and the second main pathway 312 are connected, and the charge transferred by the second electrode 120 can be transferred in the first main pathway 311 and the second main pathway 312. For example, one of the first main pathway 311 and the second main pathway 312 extends along the X direction, and the other extends along the Y direction.

[0286] For example, such as Figure 17 and Figure 18 As shown, the two ends of the branch path 320 are connected to the main path 310 with the same extension direction. For example, the extension direction of the branch path 320 is different from that of the main path 310.

[0287] For example, such as Figure 17 and Figure 18 As shown, the main path 310 passes through the light-emitting area 101 of the first color sub-pixel 11 and the light-emitting area 101 of the second color sub-pixel 12. For example, the first main path 311 passes through the light-emitting area 101 of the first color sub-pixel 11 and the light-emitting area 101 of the second color sub-pixel 12. For example, the branch path 320 passes through the light-emitting area 101 of the third color sub-pixel 13.

[0288] For example, such as Figure 17 and Figure 18 As shown, the ring-shaped defining structure 200 surrounding the light-emitting area 101 of the first color sub-pixel 11 is not exposed by the second opening 420 of the pixel defining pattern. For example, in the ring-shaped defining structure 200 surrounding the light-emitting area 101 of the second color sub-pixel 12, at least the portion between the second color sub-pixel and the third color sub-pixel 13 is exposed by the second opening 420 to form an isolation portion 210. For example, in the ring-shaped defining structure 200 surrounding the light-emitting area 101 of the second color sub-pixel 12, at least the portion between the third color sub-pixel 13 and the first color sub-pixel 11, and at least the portion between the third color sub-pixel 13 and the second color sub-pixel 12 are exposed by the second opening 420 to form an isolation portion 210. For example, the isolation portion 210 surrounding the light-emitting area 101 of any sub-pixel 10 is a non-closed ring-shaped isolation portion 210.

[0289] In the display substrate provided in this example, by setting a minimum number of isolation sections, a highly efficient isolation effect is achieved to reduce crosstalk, while the resistance of the second electrode does not increase significantly.

[0290] In the above embodiments, at least some sub-pixels located at the edge of the display area may not have a limiting structure on the side away from the center of the display area, so as to improve the continuity of the second electrode at the edge of the display area.

[0291] Another embodiment of this disclosure provides a display substrate, comprising: a substrate; a plurality of sub-pixels located on the substrate, each sub-pixel including at least a portion thereof including a light-emitting element, the light-emitting element including a light-emitting region, the light-emitting element including 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 first electrode being located between the light-emitting functional layer and the substrate, the light-emitting functional layer including a plurality of film layers. An isolation portion is disposed between at least two adjacent sub-pixels, at least one layer of the light-emitting functional layer and at least a portion of the second electrode are disconnected at the edge of the isolation portion, and the second electrodes of adjacent sub-pixels are at least partially continuous to form a mesh-like pathway; the mesh-like pathway includes multiple intersecting pathways, at least one pathway having a non-uniform width. The substrate, sub-pixels, and isolation portion in this embodiment may have the same features as those in any of the above embodiments.

[0292] like Figure 11 and Figure 12 As shown, at least a portion of the edges of the unevenly wide passage 300 are the edges of the isolation portion 210. The unevenly wide passage 300 includes a first passage portion 3011 overlapping with the light-emitting area 101 and a second passage portion 3012 located outside the light-emitting area 101. A straight line perpendicular to the extension direction of the unevenly wide passage 300 includes a first straight line passing through the orthographic projection of the first passage portion 3011 onto the substrate 01 and a second straight line passing through the orthographic projection of the second passage portion 3012 onto the substrate 01. The length of the line connecting the first straight line and the two intersection points of the orthographic projections of the edges of the isolation portion 210 on both sides of the first passage portion 3011 onto the substrate 01 is the first line length L31. The length of the line connecting the second straight line and the two intersection points of the orthographic projections of the edges of the isolation portion 210 on both sides of the second passage portion 3012 onto the substrate 01 is the second line length L32. The first line length L31 is not less than the second line length L32.

[0293] The isolation portion provided in the display substrate of this disclosure isolates at least one layer of the light-emitting functional layer and at least a portion of the second electrode. By setting the shape of the isolation portion, the second electrode forms a mesh-like path. The distance between the edges of the isolation portions on both sides of the first path portion at the position corresponding to the light-emitting area is not less than the distance between the edges of the isolation portions on both sides of the second path portion outside the corresponding light-emitting area. This reduces crosstalk between adjacent sub-pixels, improves the conduction effect of the second electrode, and minimizes the increase in the resistance of the second electrode. This helps to avoid excessive power consumption and brightness uniformity problems in the display substrate.

[0294] like Figures 1 to 18 As shown, this disclosure provides a display substrate, comprising: a substrate; a plurality of sub-pixels located on the substrate, each sub-pixel including a light-emitting element, the light-emitting element including a light-emitting region, the light-emitting element including 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 first electrode being located between the light-emitting functional layer and the substrate, the light-emitting functional layer including a plurality of film layers, the second electrode covering the light-emitting region of each sub-pixel; a pixel defining pattern located between the second electrode and the substrate, and located on the side of the first electrode away from the substrate, the pixel defining pattern including a plurality of first openings, one sub-pixel corresponding to at least one first opening, the light-emitting element of the sub-pixel being at least partially located in the first opening corresponding to the sub-pixel, and the first opening being configured to expose the first electrode; wherein, the pixel defining pattern further includes a plurality of second openings, the plurality of second openings being located between at least some sub-pixels, at least one layer of the light-emitting functional layer and at least a portion of the second electrode being disconnected at the second openings, which is beneficial to reducing crosstalk between adjacent sub-pixels.

[0295] In some examples, such as Figures 1 to 18 As shown, each second opening is provided with at least one isolation portion, and at least one layer of the light-emitting functional layer and at least a portion of the second electrode are disconnected at the isolation portion.

[0296] In some examples, such as Figures 1 to 18 As shown, a gap is provided between the orthographic projection of a portion of the edge of the isolation portion on the substrate and the orthographic projection of the edge of the second opening on the substrate, which is beneficial to achieve the isolation of the light-emitting functional layer by the edge position of the isolation portion.

[0297] In some examples, such as Figures 1 to 18 As shown, the distance between the two edges of the light-emitting areas of the sub-pixels located on both sides of the isolation portion in the extension direction perpendicular to the isolation portion and the edge of the isolation portion exposed by the second opening is different. This is beneficial to improve the conduction effect of the second electrode, and to ensure that the resistance of the second electrode does not increase as much as possible. This is beneficial to avoid the display substrate from generating excessive power consumption and brightness uniformity problems.

[0298] In some examples, such as Figures 1 to 18 As shown, at least one second opening is provided around the light-emitting area of ​​at least one sub-pixel.

[0299] In some examples, such as Figures 1 to 18As shown, the portion of the second electrode surrounding the second opening includes a closed ring structure, so that the shape of the second electrode can be a mesh structure, which is beneficial to improving the conductivity of the second electrode.

[0300] In some examples, such as Figures 1 to 18 As shown, the second electrode overlapping with the light-emitting area of ​​the sub-pixel and the second electrode located in the second opening away from the light-emitting area are continuous structures, which helps to improve the conduction effect of the second electrode, minimizes the increase in the resistance of the second electrode, and helps to avoid excessive power consumption and brightness uniformity problems in the display substrate.

[0301] In some examples, such as Figures 1 to 18 As shown, the second electrodes of the sub-pixels located on both sides of the isolation portion in the extension direction perpendicular to the isolation portion are connected outside the second opening, which helps to improve the conduction effect of the second electrode and ensures that the resistance of the second electrode does not increase as much as possible.

[0302] In some examples, such as Figures 1 to 18 As shown, the second opening of the light-emitting area surrounding at least one sub-pixel is a non-closed ring structure, such that the second electrode is continuously disposed at the gap position of the non-closed ring second opening.

[0303] In some examples, such as Figures 1 to 18 As shown, the shape of the light-emitting area of ​​at least one sub-pixel includes a polygon, and each side of the polygon is provided with a second opening on the side away from the center of the light-emitting area, which helps to reduce crosstalk between adjacent sub-pixels.

[0304] In some examples, such as Figures 1 to 18 As shown, the boundary of the second opening includes portions whose extension direction intersects both the row direction and the column direction.

[0305] In some examples, such as Figures 1 to 18 As shown, the edge of the second opening includes a portion whose extension direction is parallel to one of the row direction and the column direction.

[0306] In some examples, such as Figures 1 to 18 As shown, the plurality of sub-pixels includes a plurality of first color sub-pixels, a plurality of second color sub-pixels, and a plurality of third color sub-pixels. The plurality of sub-pixels are arranged as a plurality of first sub-pixel groups and a plurality of second sub-pixel groups alternately arranged along a first direction. Each first sub-pixel group includes a plurality of first color sub-pixels and a plurality of second color sub-pixels alternately arranged along a second direction. Each second sub-pixel group includes the third color sub-pixels arranged along the second direction. The first direction intersects the second direction.

[0307] In some examples, such as Figures 1 to 18As shown, the second opening includes a non-closed annular first opening portion surrounding at least one first color sub-pixel, the non-closed annular first opening portion being provided with a first notch, the first notch being disposed opposite to at least one of the edges and corners of the first color sub-pixel.

[0308] In some examples, such as Figures 1 to 18 As shown, the second opening includes a non-closed annular second opening portion surrounding at least one second color sub-pixel, the non-closed annular second opening portion being provided with a second notch, the second notch being disposed opposite to at least one of the edges and corners of the second color sub-pixel.

[0309] In some examples, such as Figures 1 to 18 As shown, the second opening includes a non-closed ring-shaped third opening portion surrounding at least one third color sub-pixel, the non-closed ring-shaped third opening portion being provided with a third notch, the third notch being disposed opposite to at least one of the edges and corners of the third color sub-pixel.

[0310] In some examples, such as Figures 1 to 18 As shown, the first opening is located between the adjacent first color sub-pixel and the third color sub-pixel, or the first opening is located between the adjacent first color sub-pixel and the second color sub-pixel.

[0311] In some examples, such as Figures 1 to 18 As shown, the second opening is located between the adjacent second color sub-pixel and the third color sub-pixel, or the second opening is located between the adjacent first color sub-pixel and the second color sub-pixel.

[0312] In some examples, such as Figures 1 to 18 As shown, the third opening is located between the adjacent second color sub-pixel and the third color sub-pixel, or the second opening is located between the adjacent first color sub-pixel and the third color sub-pixel.

[0313] In some examples, such as Figures 1 to 18 As shown, the size of the first notch is different from the size of the second notch.

[0314] In some examples, such as Figures 1 to 18 As shown, the first color sub-pixel and the second color sub-pixel include adjacent first openings and second openings. The minimum distance between the adjacent first openings and second openings is a first spacing distance L001. The maximum spacing distance around the first opening of the first color sub-pixel in the arrangement direction of the adjacent first openings and second openings (e.g., ...) Figure 11 The distance between the two intersection points of the straight line passing through the center of the light-emitting area of ​​the first color sub-pixel and the edge of the first opening around the light-emitting area near the center of the light-emitting area is the second spacing distance L002. The maximum spacing distance between the second opening around the second color sub-pixel in the arrangement direction of the adjacent first and second openings is the third spacing distance L003. Both the second and third spacing distances are greater than the first spacing distance. By setting the spacing distance between openings at different positions, the second electrode can have a larger size in the position covering the light-emitting area, which improves the conductivity of the second electrode in positions outside the light-emitting area while ensuring normal display of the sub-pixel.

[0315] In some examples, such as Figures 1 to 18 As shown, the display substrate further includes an insulating layer located between the pixel defining pattern and the substrate, the isolation portion is located on the surface of the insulating layer away from the substrate, and the insulating layer is disposed in the second opening at a position other than the isolation portion.

[0316] In this embodiment, the distribution of the second opening can be the same as the distribution of the isolation portion in the above embodiment. The distribution of the second opening can be referenced to the distribution of the isolation portion.

[0317] This disclosure provides a display substrate, including a substrate and a plurality of sub-pixels located on the substrate. Each sub-pixel, at least some of which are sub-pixels, includes a light-emitting element, a light-emitting region, a light-emitting functional layer, and a first electrode and a second electrode located on opposite sides of the light-emitting functional layer along a direction perpendicular to the substrate. The first electrode is located between the light-emitting functional layer and the substrate. The light-emitting functional layer includes a plurality of film layers. An isolation portion is provided between at least two adjacent sub-pixels. At least one layer of the light-emitting functional layer and at least a portion of the second electrode are disconnected at the edge of the isolation portion. The second electrodes of adjacent sub-pixels are at least partially continuous to form a mesh-like pathway. The length of the orthographic projection of the second electrode in at least some of the sub-pixels onto the substrate in one direction is greater than the sum of the dimensions of the orthographic projections of the light-emitting regions of the sub-pixels arranged along that direction onto the substrate. The mesh-like pathway includes a plurality of intersecting pathways, at least one of which is a pathway with unevenly distributed width. The width of the portion of the unevenly distributed pathway overlapping the light-emitting region is greater than the width of the portion overlapping at least some locations outside the light-emitting region.

[0318] For example, according to embodiments of this disclosure, the direction includes a row direction or a column direction.

[0319] For example, according to an embodiment of this disclosure, the plurality of sub-pixels include sub-pixels of different colors, and the width of the overlap between the pathway and the light-emitting area of ​​the sub-pixels of different colors is different.

[0320] For example, according to an embodiment of this disclosure, the edge of the isolation portion includes a portion whose extending direction intersects both the row direction and the column direction.

[0321] For example, according to an embodiment of this disclosure, the edge of the isolation portion includes a portion whose extension direction is parallel to one of the row direction and the column direction.

[0322] For example, according to an embodiment of this disclosure, the multiple paths include multiple trunk paths and multiple branch paths. The multiple trunk paths pass through the region where at least some of the sub-pixels are located. The two ends of at least one branch path are respectively connected to the trunk path intersecting the extension direction, or the two ends of at least one branch path are both connected to the trunk path with the same extension direction.

[0323] For example, according to an embodiment of this disclosure, the plurality of main trunk paths include a first main trunk path and a second main trunk path whose extension directions intersect; at least one branch path has its two ends connected to the first main trunk path and the second main trunk path respectively; or, at least one branch path has its two ends connected to one of the first main trunk path and the second main trunk path.

[0324] For example, according to an embodiment of this disclosure, the plurality of sub-pixels includes a plurality of first color sub-pixels, a plurality of second color sub-pixels, and a plurality of third color sub-pixels. The plurality of sub-pixels are arranged as a plurality of first sub-pixel groups and a plurality of second sub-pixel groups alternately arranged along a first direction. Each first sub-pixel group includes a first color sub-pixel and a second color sub-pixel alternately arranged along a second direction. Each second sub-pixel group includes the third color sub-pixel arranged along the second direction. The first direction intersects the second direction.

[0325] For example, according to an embodiment of this disclosure, the multiple paths include multiple trunk paths that pass through the region where at least some of the sub-pixels are located, and at least one trunk path overlaps with the light-emitting regions of all third color sub-pixels in a second sub-pixel group.

[0326] For example, according to an embodiment of this disclosure, the plurality of backbone paths further includes a backbone path passing through the first sub-pixel group.

[0327] For example, according to an embodiment of this disclosure, the plurality of main paths include a first main path and a second main path whose extension directions intersect, and the plurality of paths also include a plurality of branch paths, at least one branch path having its two ends connected to the first main path and the second main path respectively; the at least one branch path passes through at least one of the first color sub-pixel and the second color sub-pixel.

[0328] For example, according to an embodiment of this disclosure, the isolation portion includes a non-closed loop first isolation portion surrounding at least one first color sub-pixel, the non-closed loop first isolation portion being provided with at least two first notches, and the at least one branch path passing through the first notches to connect with the main path.

[0329] For example, according to an embodiment of this disclosure, the isolation portion includes a non-closed loop second isolation portion surrounding at least one second color sub-pixel, the non-closed loop second isolation portion being provided with at least two second notches, and the at least one branch path passing through the second notches to connect with the main path.

[0330] For example, according to an embodiment of this disclosure, the at least one branch path passes through the at least two first gaps, the at least two first gaps including a first gap located on one side of the light-emitting area of ​​the first color sub-pixel in the first direction and a first gap located on one side of the light-emitting area of ​​the first color sub-pixel in the second direction.

[0331] For example, according to an embodiment of this disclosure, the at least one branch path passes through the at least two second gaps, the at least two second gaps including a second gap located on one side of the light-emitting area of ​​the second color sub-pixel in the first direction and a second gap located on one side of the light-emitting area of ​​the second color sub-pixel in the second direction.

[0332] For example, according to an embodiment of this disclosure, the first notch is configured to expose at least one corner of the light-emitting area of ​​the first color sub-pixel.

[0333] For example, according to an embodiment of this disclosure, each edge or its extension of the luminous area of ​​the at least one first color sub-pixel is sequentially connected to form a polygon, and a plurality of vertices of the polygon have regions that do not overlap with a plurality of corners of the corresponding luminous area; the luminous area of ​​the at least one first color sub-pixel includes at least one specific corner, and the area of ​​the specific corner and the vertices of the polygon corresponding to it that do not overlap is greater than the area of ​​each of the other corners and the vertices of the polygon corresponding to that corner that do not overlap; at least a portion of the first notch is configured to expose at least a portion of the specific corner.

[0334] For example, according to an embodiment of this disclosure, at least a portion of the first isolation portion is located between the first color sub-pixel and the third color sub-pixel disposed adjacent to each other in a third direction, and both the first direction and the second direction intersect the third direction; the distance between the first isolation portion and the adjacent edges of the light-emitting areas of the first color sub-pixel is a first distance, and the distance between the first isolation portion and the adjacent edges of the light-emitting areas of the third color sub-pixel is a second distance, wherein the first distance is less than the second distance.

[0335] For example, according to an embodiment of this disclosure, at least a portion of the second isolation portion is located between the second color sub-pixel and the third color sub-pixel disposed adjacent to each other in a third direction, and both the first direction and the second direction intersect the third direction; the distance between the second isolation portion and the adjacent edges of the light-emitting areas of the second color sub-pixel is a third distance, and the distance between the second isolation portion and the adjacent edges of the light-emitting areas of the third color sub-pixel is a fourth distance, wherein the third distance is less than the fourth distance.

[0336] For example, according to an embodiment of this disclosure, the isolation portion includes a non-closed ring-shaped third isolation portion surrounding at least one third color sub-pixel, the non-closed ring-shaped third isolation portion being provided with at least two third gaps exposing the corners of the light-emitting area of ​​the third color sub-pixel, the at least one trunk path passing through the third gaps.

[0337] For example, according to an embodiment of this disclosure, the third isolation portion is located between the first color sub-pixel and the third color sub-pixel, which are adjacent to each other in a third direction. Both the first direction and the second direction intersect the third direction. The distance between the third isolation portion and the adjacent edges of the light-emitting areas of the third color sub-pixel is a fifth distance, and the distance between the third isolation portion and the adjacent edges of the light-emitting areas of the first color sub-pixel is a sixth distance. The fifth distance is less than the sixth distance. And / or, the third isolation portion is located between the second color sub-pixel and the third color sub-pixel, which are adjacent to each other in a third direction. Both the first direction and the second direction intersect the third direction. The distance between the third isolation portion and the adjacent edges of the light-emitting areas of the third color sub-pixel is a fifth distance, and the distance between the third isolation portion and the adjacent edges of the light-emitting areas of the second color sub-pixel is a seventh distance. The fifth distance is less than the seventh distance.

[0338] For example, according to an embodiment of this disclosure, the isolation portion further includes a fourth isolation portion, which is located between adjacent first color sub-pixels and second color sub-pixels arranged along the second direction or along the first direction.

[0339] For example, according to an embodiment of this disclosure, the isolation portion includes a non-closed ring-shaped first isolation portion surrounding at least one first color sub-pixel, the non-closed ring-shaped first isolation portion being provided with at least two first gaps exposing the corners of the light-emitting area of ​​the first color sub-pixel, the at least two first gaps including two first gaps disposed opposite to each other, the trunk path passing through the two first gaps.

[0340] For example, according to an embodiment of this disclosure, the isolation portion includes a non-closed ring-shaped second isolation portion surrounding at least one second color sub-pixel. The non-closed ring-shaped second isolation portion is provided with at least two second gaps exposing the corners of the light-emitting area of ​​the second color sub-pixel. The at least two second gaps include two second gaps disposed opposite to each other. The second gaps are disposed opposite to the first gaps so that the trunk path passes through the first gaps and the second gaps.

[0341] For example, according to an embodiment of this disclosure, at least a portion of the first isolation portion is located between the first color sub-pixel and the third color sub-pixel disposed adjacent to each other in a third direction, and both the first direction and the second direction intersect the third direction; the distance between the first isolation portion and the adjacent edges of the light-emitting areas of the first color sub-pixel is a first distance, and the distance between the first isolation portion and the adjacent edges of the light-emitting areas of the third color sub-pixel is a second distance, wherein the first distance is less than the second distance.

[0342] For example, according to an embodiment of this disclosure, at least a portion of the second isolation portion is located between the second color sub-pixel and the third color sub-pixel disposed adjacent to each other in a third direction, and both the first direction and the second direction intersect the third direction; the distance between the second isolation portion and the adjacent edges of the light-emitting areas of the second color sub-pixel is a third distance, and the distance between the second isolation portion and the adjacent edges of the light-emitting areas of the third color sub-pixel is a fourth distance, wherein the third distance is less than the fourth distance.

[0343] For example, according to an embodiment of this disclosure, the interval between the first isolation portion and the second isolation portion adjacent to each other in the first direction is not less than the size of the first gap in the second direction and the size of the second gap in the second direction.

[0344] For example, according to an embodiment of this disclosure, the isolation portion includes a non-closed ring-shaped third isolation portion surrounding at least one third color sub-pixel. The non-closed ring-shaped third isolation portion is provided with at least two third gaps exposing the corners of the light-emitting area of ​​the third color sub-pixel. The at least two third gaps include two third gaps arranged opposite to each other. The main passage passes through the two third gaps arranged opposite to each other, the interval between the third isolation portions arranged adjacent to each other in the first direction, and the interval between the third isolation portions arranged adjacent to each other in the second direction.

[0345] For example, according to embodiments of this disclosure, at least a portion of the third isolation portion is located between adjacent second color sub-pixels and third color sub-pixels, and / or, at least a portion of the third isolation portion is located between adjacent first color sub-pixels and third color sub-pixels.

[0346] For example, according to an embodiment of this disclosure, the light-emitting area of ​​the first color sub-pixel includes a plurality of corners; the isolation portion includes a non-closed ring-shaped first isolation portion surrounding at least one first color sub-pixel, the non-closed ring-shaped first isolation portion being provided with at least two first gaps exposing at least two corners of the plurality of corners, the at least two first gaps including two first gaps of different sizes.

[0347] For example, according to an embodiment of this disclosure, the light-emitting area of ​​the first color sub-pixel includes four corners, the four corners including two first corners disposed opposite each other in the first direction and two second corners disposed opposite each other in the second direction; the size of the first notch exposing the first corners is different from the size of the first notch exposing the second corners.

[0348] For example, according to an embodiment of this disclosure, the light-emitting area of ​​the second color sub-pixel includes a plurality of corners; the isolation portion includes a non-closed ring-shaped second isolation portion surrounding at least one second color sub-pixel, the non-closed ring-shaped second isolation portion being provided with at least two second notches exposing at least two of the plurality of corners, the at least two second notches including two second notches of different sizes.

[0349] For example, according to an embodiment of this disclosure, the light-emitting area of ​​the second color sub-pixel includes four corners, the four corners including two third corners disposed opposite each other in the first direction and two fourth corners disposed opposite each other in the second direction; the size of the second notch exposing the third corners is different from the size of the second notch exposing the fourth corners.

[0350] For example, according to an embodiment of this disclosure, the isolation portion includes a non-closed ring-shaped first isolation portion surrounding at least one first color sub-pixel, the non-closed ring-shaped first isolation portion being provided with at least two first gaps exposing at least two sides of the light-emitting area of ​​the first color sub-pixel, the trunk path passing through the two first gaps.

[0351] For example, according to an embodiment of this disclosure, the isolation portion includes a non-closed ring-shaped second isolation portion surrounding at least one second color sub-pixel, the non-closed ring-shaped second isolation portion being provided with at least two second notches exposing at least two sides of the light-emitting area of ​​the second color sub-pixel, and the first isolation portion and the second isolation portion being disposed opposite to each other.

[0352] For example, according to an embodiment of this disclosure, the display substrate further includes: a pixel defining pattern located on the side of the first electrode away from the substrate; and an insulating layer located between the pixel defining pattern and the substrate. The pixel defining pattern includes a plurality of first openings, with one sub-pixel corresponding to at least one first opening. The light-emitting element of the sub-pixel is at least partially located in the first opening corresponding to the sub-pixel, and the first opening is configured to expose the first electrode. The pixel defining pattern also includes a second opening configured to expose the isolation portion located between the light-emitting functional layer and the insulating layer.

[0353] For example, according to an embodiment of this disclosure, the display substrate further includes a defining structure located between the light-emitting functional layer and the insulating layer. The defining structure surrounds the light-emitting area of ​​each of the at least some sub-pixels, and the portion of the defining structure exposed by the second opening includes the isolation portion.

[0354] For example, according to an embodiment of this disclosure, at least a portion of the defined structure is located on the side of the first electrode away from the substrate.

[0355] For example, according to an embodiment of this disclosure, at least a portion of the defined structure is located between the first electrode and the insulating layer.

[0356] For example, according to an embodiment of this disclosure, the insulating layer includes a protrusion on the side away from the substrate, the orthographic projection of the protrusion on the substrate overlaps with the orthographic projection of the defining structure on the substrate, and the isolation portion contacts the protrusion.

[0357] For example, according to an embodiment of this disclosure, the material of the isolation portion includes an inorganic non-metallic material, and the material of the insulating layer includes an organic material; the orthographic projection of the protrusion on the substrate is completely located within the orthographic projection of the isolation portion on the substrate.

[0358] For example, according to an embodiment of this disclosure, at least a portion of the edge of the isolation portion protrudes by less than 1 micrometer relative to the edge of the protrusion.

[0359] For example, according to an embodiment of this disclosure, the isolation portion includes a film layer, or the isolation portion includes a first isolation structure layer and a second isolation structure layer stacked together, the first isolation structure layer being located on the side of the second isolation structure layer away from the substrate, and the edge of the first isolation structure layer protruding relative to the edge of the second isolation structure layer, or the isolation portion includes a first isolation structure layer, a second isolation structure layer and a third isolation structure layer stacked sequentially, and the edges of the first isolation structure layer and the third isolation structure layer both protruding relative to the edge of the second isolation structure layer.

[0360] For example, according to an embodiment of this disclosure, at least one film layer of the light-emitting functional layer includes a charge-generating layer. The light-emitting functional layer includes a first light-emitting layer, the charge-generating layer, and a second light-emitting layer stacked together. The charge-generating layer is located between the first light-emitting layer and the second light-emitting layer, and the charge-generating layer is broken at the edge of the isolation portion.

[0361] This disclosure provides a display substrate, including: a substrate; a plurality of sub-pixels located on the substrate, each sub-pixel including at least a portion of the sub-pixels including a light-emitting element, the light-emitting element including a light-emitting region, the light-emitting element including 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 first electrode being located between the light-emitting functional layer and the substrate, the light-emitting functional layer including a plurality of film layers. An isolation portion is provided between at least two adjacent sub-pixels. At least one layer of the light-emitting functional layer and at least a portion of the second electrode are disconnected at the edge of the isolation portion, and at least a portion of the second electrodes of adjacent sub-pixels are continuously arranged to form a mesh-like pathway. The mesh-like pathway includes multiple pathways arranged in a cross pattern, at least one pathway is a pathway with uneven width, and at least a portion of the edge of the unevenly wide pathway is the edge of the isolation portion. The unevenly wide pathway includes a first pathway portion overlapping the light-emitting area and a second pathway portion located outside the light-emitting area. A straight line perpendicular to the extension direction of the unevenly wide pathway includes a first straight line passing through the orthographic projection of the first pathway portion on the substrate and a second straight line passing through the orthographic projection of the second pathway portion on the substrate. The length of the line connecting the first straight line and the two intersection points of the orthographic projections of the edges of the isolation portions on both sides of the first pathway portion on the substrate is the first line length. The length of the line connecting the second straight line and the two intersection points of the orthographic projections of the edges of the isolation portions on both sides of the second pathway portion on the substrate is the second line length. The length of the first line is not less than the length of the second line.

[0362] Figure 19 This is a schematic block diagram of a display device provided according to another embodiment of the present disclosure. Figure 19 As shown, the display device provided in the embodiments of this disclosure includes any of the above-described display substrates.

[0363] For example, the display device also includes a cover plate located on the light-emitting side of the display substrate.

[0364] 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.

[0365] The following points need to be explained:

[0366] (1) The accompanying drawings of the embodiments of this disclosure only involve the structures involved in the embodiments of this disclosure, and other structures can be referred to the general design.

[0367] (2) Where there is no conflict, features of the same embodiment and different embodiments of this disclosure may be combined with each other.

[0368] The above description is merely an exemplary embodiment of this disclosure and is not intended to limit the scope of protection of this disclosure, which is determined by the appended claims.

Claims

1. A display substrate, comprising: Substrate; Multiple sub-pixels are located on the substrate. At least some of the sub-pixels include a light-emitting element. The light-emitting element includes a light-emitting region. The light-emitting element includes a light-emitting functional layer and a first electrode and a second electrode located on both sides of the light-emitting functional layer in a direction perpendicular to the substrate. The first electrode is located between the light-emitting functional layer and the substrate. The light-emitting functional layer includes multiple film layers. The second electrode covers the light-emitting region of each sub-pixel. A pixel-defined pattern is located between the second electrode and the substrate, and on the side of the first electrode away from the substrate. The pixel-defined pattern includes a plurality of first openings, with one sub-pixel corresponding to at least one first opening. The light-emitting element of the sub-pixel is at least partially located in the first opening corresponding to the sub-pixel, and the first opening is configured to expose the first electrode. The pixel-defined pattern further includes a plurality of second openings located between at least a portion of the sub-pixels, and at least one layer of the light-emitting functional layer and at least a portion of the second electrode are disconnected at the second openings; The display substrate further includes a defining structure located on the side of the light-emitting functional layer facing the substrate, the edge of the defining structure surrounding the light-emitting area of ​​at least a portion of the sub-pixels; in a direction perpendicular to the substrate, the defining structure overlaps with the first electrode; Each second opening is provided with at least one isolation portion, at least one layer of the light-emitting functional layer and at least a portion of the second electrode are disconnected at the isolation portion, the portion of the defining structure exposed by the second opening includes the isolation portion, and the portion of the defining structure overlapping with the first electrode and the isolation portion are integrally formed.

2. The display substrate according to claim 1, wherein, The defined structure partially covers the edge of the first electrode; or the defined structure is located between the first electrode and the substrate, and the material of the defined structure includes inorganic non-metallic materials.

3. The display substrate according to claim 1, wherein, A gap is provided between the orthographic projection of a portion of the edge of the isolation portion onto the substrate and the orthographic projection of the edge of the second opening located thereon onto the substrate.

4. The display substrate according to claim 1, wherein, The distance between the two edges of the light-emitting areas of the sub-pixels located on both sides of the isolation portion in the extension direction perpendicular to the isolation portion and the edge of the isolation portion exposed by the second opening is different.

5. The display substrate according to claim 1, wherein, At least one second opening is provided around the light-emitting area of ​​at least one sub-pixel.

6. The display substrate according to claim 1, wherein, The portion of the second electrode surrounding the second opening includes a closed ring structure.

7. The display substrate according to claim 1, wherein, The second electrode overlapping the light-emitting area of ​​the sub-pixel and the second electrode located in the second opening away from the light-emitting area are a continuous structure.

8. The display substrate according to claim 1, wherein, The second electrodes of the sub-pixels located on both sides of the isolation portion in the extension direction perpendicular to the isolation portion are connected outside the second opening.

9. The display substrate according to claim 1, wherein, The second opening surrounding the light-emitting area of ​​at least one sub-pixel is a non-closed ring structure.

10. The display substrate according to claim 1, wherein, The shape of the light-emitting area of ​​at least one sub-pixel includes a polygon, and each side of the polygon is provided with a second opening on the side away from the center of the light-emitting area.

11. The display substrate according to claim 1, wherein, The boundary of the second opening includes portions whose extension direction intersects both the row direction and the column direction.

12. The display substrate according to claim 11, wherein, The edge of the second opening includes a portion whose extension direction is parallel to one of the row direction and the column direction.

13. The display substrate according to any one of claims 1-12, wherein, The plurality of sub-pixels includes a plurality of first color sub-pixels, a plurality of second color sub-pixels, and a plurality of third color sub-pixels. The plurality of sub-pixels are arranged as a plurality of first sub-pixel groups and a plurality of second sub-pixel groups alternately arranged along a first direction. Each first sub-pixel group includes a plurality of first color sub-pixels and a plurality of second color sub-pixels alternately arranged along a second direction. Each second sub-pixel group includes a third color sub-pixel arranged along the second direction. The first direction intersects the second direction.

14. The display substrate according to claim 13, wherein, The second opening includes a non-closed annular first opening surrounding at least one first color sub-pixel, the non-closed annular first opening having a first notch disposed opposite to at least one of the edges and corners of the first color sub-pixel.

15. The display substrate according to claim 14, wherein, The second opening includes a non-closed annular second opening portion surrounding at least one second color sub-pixel, the non-closed annular second opening portion being provided with a second notch, the second notch being disposed opposite to at least one of the edges and corners of the second color sub-pixel.

16. The display substrate according to claim 15, wherein, The second opening includes a non-closed ring-shaped third opening surrounding at least one third color sub-pixel, the non-closed ring-shaped third opening being provided with a third notch, the third notch being disposed opposite to at least one of the edges and corners of the third color sub-pixel.

17. The display substrate according to claim 14, wherein, The first opening is located between the adjacent first color sub-pixel and the third color sub-pixel, or the first opening is located between the adjacent first color sub-pixel and the second color sub-pixel.

18. The display substrate according to claim 15, wherein, The second opening is located between the adjacent second color sub-pixel and the third color sub-pixel, or the second opening is located between the adjacent first color sub-pixel and the second color sub-pixel.

19. The display substrate according to claim 16, wherein, The third opening is located between the adjacent second color sub-pixel and the third color sub-pixel, or the second opening is located between the adjacent first color sub-pixel and the third color sub-pixel.

20. The display substrate according to claim 15, wherein, The size of the first notch is different from the size of the second notch.

21. The display substrate according to claim 15, wherein, The first color sub-pixel and the second color sub-pixel include an adjacent first opening and a second opening. The minimum distance between the adjacent first opening and the second opening is a first interval distance. The maximum interval distance around the first opening of the first color sub-pixel in the arrangement direction of the adjacent first opening and the second opening is a second interval distance. The maximum interval distance around the second opening of the second color sub-pixel in the arrangement direction of the adjacent first opening and the second opening is a third interval distance. Both the second interval distance and the third interval distance are greater than the first interval distance.

22. The display substrate according to any one of claims 1-4, wherein, The display substrate further includes an insulating layer located between the pixel defining pattern and the substrate, the isolation portion being located on the surface of the insulating layer away from the substrate, and the insulating layer being disposed in the second opening at a position other than the isolation portion.

23. The display substrate according to any one of claims 1-4, wherein, At least one film layer of the light-emitting functional layer includes a charge-generating layer. The light-emitting functional layer includes a first light-emitting layer, the charge-generating layer and a second light-emitting layer stacked together. The charge-generating layer is located between the first light-emitting layer and the second light-emitting layer, and the charge-generating layer is broken at the edge of the isolation portion.

24. A display device comprising the display substrate according to any one of claims 1-23.

Images