Display substrate and display device

Abstract

The present invention provides a display substrate and a display device. The display substrate includes a plurality of sub-pixels and a pixel-limiting pattern. Each sub-pixel includes a light-emitting element having a light-emitting region, and the light-emitting element includes a light-emitting functional layer, a first electrode, and a second electrode covering the light-emitting region of each sub-pixel. The pixel-limiting pattern includes a plurality of first openings, each sub-pixel corresponding to at least one first opening. 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-limiting pattern further includes a plurality of second openings, each second opening being located between at least some of the sub-pixels. At least one layer of the light-emitting functional layer and at least a portion of the second electrode are cut by the second openings, which is advantageous for reducing crosstalk between adjacent sub-pixels.

Description

[Technical Field]

[0001] The embodiments of the present disclosure relate to a display substrate and a display device. [Background technology]

[0002] With the development of display technology, users have increasingly higher requirements for the service life and power consumption of display devices. A tandem organic light-emitting display device adds at least one light-emitting layer and one charge-generating layer to an organic light-emitting device, thereby extending the service life, improving brightness, and reducing power consumption of the light-emitting device, thereby largely satisfying users' needs for the service life and power consumption of display devices. Summary of the Invention [Means for solving the problem]

[0003] An embodiment of the present disclosure provides a display substrate and a display device.

[0004] In an embodiment of the present disclosure, a display substrate includes a base substrate, a plurality of sub-pixels, and a pixel-limiting pattern, the sub-pixels are disposed on the base substrate, and each of at least some of the sub-pixels includes 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 disposed on both sides of the light-emitting functional layer in a direction perpendicular to the base substrate, the first electrode being disposed between the light-emitting functional layer and the base substrate, the light-emitting functional layer including a plurality of film layers, the second electrode covering the light-emitting region of each sub-pixel, the pixel-limiting pattern being disposed between the second electrode and the base substrate and disposed on a side of the first electrode away from the base substrate, the pixel-limiting pattern including a plurality of first openings, one sub-pixel corresponding to at least one first opening, at least a portion of the light-emitting element of each sub-pixel being disposed in the first opening corresponding to the sub-pixel, and the first opening exposing the first electrode. The pixel-limiting pattern further includes a plurality of second openings, the plurality of second openings being located between at least some of the sub-pixels, and at least one of the light-emitting functional layers and at least a portion of the second electrode being cut by the second openings.

[0005] For example, according to an embodiment of the present disclosure, at least one blocking portion is provided in each second opening, and at least one of the light-emitting functional layers and at least a portion of the second electrode are cut by the blocking portion.

[0006] For example, according to an embodiment of the present disclosure, a gap is provided between the orthogonal projection of a part of the edge of the blocking portion on the base substrate and the orthogonal projection of the edge of the second opening where the blocking portion is located on the base substrate.

[0007] For example, according to an embodiment of the present disclosure, in a direction perpendicular to the extension direction of the blocking portion, the distances between the two edges of the light-emitting areas of the sub-pixels located on both sides of the blocking portion and the edge of the blocking portion exposed to the second opening are different.

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

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

[0010] For example, according to an embodiment of the present disclosure, the second electrode overlapping the light-emitting region of the sub-pixel and the second electrode apart from the light-emitting region of the second opening have a continuous structure.

[0011] For example, according to an embodiment of the present disclosure, the second electrodes of the sub-pixels located on both sides of the blocking portion in the direction perpendicular to the extending direction of the blocking portion are connected at positions other than the second opening.

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

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

[0014] For example, according to an embodiment of the present disclosure, the boundary of the second opening includes a portion where the extending direction intersects with both the row direction and the column direction.

[0015] For example, according to an embodiment of the present disclosure, the edge of the second opening includes a portion whose extending direction is parallel to either the row direction or the column direction.

[0016] For example, according to an embodiment of the present disclosure, the plurality of subpixels include a plurality of first color subpixels, a plurality of second color subpixels, and a plurality of third color subpixels, and the plurality of subpixels are arranged as a plurality of first subpixel groups and a plurality of second subpixel groups alternately arranged along a first direction, each first subpixel group includes the first color subpixels and the second color subpixels alternately arranged along a second direction, and each second subpixel group includes the third color subpixels arranged along the second direction, and the first direction intersects with the second direction.

[0017] For example, according to an embodiment of the present disclosure, the second opening includes a non-closed annular first opening surrounding at least one first-color subpixel, and a first notch is disposed in the non-closed annular first opening, and the first notch is disposed opposite at least one of a side and a corner of the first-color subpixel.

[0018] For example, according to an embodiment of the present disclosure, the second opening includes a non-closed annular second opening surrounding at least one second-color subpixel, and a second notch is disposed in the non-closed annular second opening, and the second notch is disposed opposite at least one of a side and a corner of the second-color subpixel.

[0019] For example, according to an embodiment of the present disclosure, the second opening includes a non-closed annular third opening surrounding at least one third-color subpixel, and a third notch is disposed in the non-closed annular third opening, and the third notch is disposed opposite at least one of a side and a corner of the third-color subpixel.

[0020] For example, according to an embodiment of the present disclosure, the first opening is located between the first color subpixel and the third color subpixel that are adjacent to each other, or the first opening is located between the first color subpixel and the second color subpixel that are adjacent to each other.

[0021] For example, according to an embodiment of the present disclosure, the second opening is located between the adjacent second color subpixel and the adjacent third color subpixel, or the second opening is located between the adjacent first color subpixel and the adjacent second color subpixel.

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

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

[0024] For example, according to an embodiment of the present disclosure, the first color subpixel and the second color subpixel include the first opening and the second opening that are adjacent to each other, the minimum distance between the adjacent first opening and the second opening is a first separation distance, the maximum distance between the first openings surrounding the first color subpixel in the arrangement direction of the adjacent first openings and the second openings is a second separation distance, and the maximum distance between the second openings surrounding the second color subpixel in the arrangement direction of the adjacent first openings and the second openings is a third separation distance, and both the second separation distance and the third separation distance are greater than the first separation distance.

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

[0026] For example, according to an embodiment of the present disclosure, at least one film layer of the light-emitting functional layer includes a charge generating layer, and 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 being located between the first light-emitting layer and the second light-emitting layer, and the charge generating layer being cut at the edge of the blocking portion.

[0027] Another embodiment of the present disclosure provides a display device including any of the display substrates described above. [Brief explanation of the drawings]

[0028] In order to more clearly describe the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly described below. It is obvious that the drawings described below only relate to some embodiments of the present disclosure and do not limit the present disclosure. [Figure 1]FIG. 1 is a schematic diagram of a partial planar structure of a display substrate according to an embodiment of the present disclosure. [Figure 2] FIG. 2 is a schematic diagram of a partial planar structure of a display substrate according to an embodiment of the present disclosure. [Figure 3] FIG. 3 is a schematic diagram of a partial planar structure of a display substrate according to an embodiment of the present disclosure. [Figure 4A] FIG. 4A is a schematic diagram of a partial cross-sectional structure taken along line AA′ shown in FIG. [Figure 4B] FIG. 4B is a schematic diagram of a partial cross-sectional structure including a blocking portion provided by a different example according to an embodiment of the present disclosure. [Figure 4C] FIG. 4C is a schematic diagram of a partial cross-sectional structure including a blocking portion provided by a different example according to an embodiment of the present disclosure. [Figure 4D] FIG. 4D is a schematic diagram of a partial cross-sectional structure including a blocking portion provided by a different example according to an embodiment of the present disclosure. [Figure 5] FIG. 5 is a schematic diagram of a structure in which a pixel limiting pattern is provided in the blocking portion shown in FIG. 4C. [Figure 6] FIG. 6 is an enlarged schematic view of a light-emitting region of one first-color sub-pixel shown in FIG. [Figure 7] FIG. 7 is a schematic diagram of a partial planar structure of another display substrate according to an embodiment of the present disclosure. [Figure 8] FIG. 8 is a schematic diagram of a partial planar structure of another display substrate according to an embodiment of the present disclosure. [Figure 9] FIG. 9 is a schematic diagram of a partial planar structure of another display substrate according to an embodiment of the present disclosure. [Figure 10] FIG. 10 is a schematic diagram of a partial planar structure of another display substrate according to an embodiment of the present disclosure. [Figure 11] FIG. 11 is a schematic diagram of a partial planar structure of another display substrate according to an embodiment of the present disclosure. [Figure 12] FIG. 12 is a schematic diagram of a partial planar structure of another display substrate according to an embodiment of the present disclosure. [Figure 13A] FIG. 13A is a schematic diagram of a partial planar structure of another display substrate according to an embodiment of the present disclosure. [Figure 13B] FIG. 13B is a schematic diagram of a partial planar structure of another display substrate according to an embodiment of the present disclosure. [Figure 14A] FIG. 14A is a schematic diagram of a partial planar structure of another display substrate according to an embodiment of the present disclosure. [Figure 14B] FIG. 14B is a partial enlarged view of the display substrate shown in FIG. 14A. [Figure 15] FIG. 15 is a schematic diagram of a partial planar structure of another display substrate according to an embodiment of the present disclosure. [Figure 16] FIG. 16 is a schematic diagram of a partial planar structure of another display substrate according to an embodiment of the present disclosure. [Figure 17] FIG. 17 is a schematic diagram of a partial planar structure of another display substrate according to an embodiment of the present disclosure. [Figure 18] FIG. 18 is a schematic diagram of a partial planar structure of another display substrate according to an embodiment of the present disclosure. [Figure 19] FIG. 19 is a schematic block diagram of a display device according to another embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0029] In order to clarify the objectives, technical solutions and advantages of the embodiments of the present disclosure, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings of the embodiments of the present disclosure. It is obvious that the described embodiments are only some embodiments of the present disclosure, and not all embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without requiring creative work fall within the scope of protection of the present disclosure.

[0030] Unless otherwise defined, technical or scientific terms used in this disclosure have common meanings that can be understood by those skilled in the art. The words "first," "second," and similar words used in this disclosure are merely used to distinguish different components, and do not indicate any order, quantity, or importance. Similar words such as "comprise" or "contain" do not exclude other elements or components, but mean that the elements or components listed before the word cover the elements or components listed after the word and their equivalents.

[0031] The terms "parallel," "perpendicular," and "same" used in the examples of the present disclosure all refer to the strict meaning of "parallel," "perpendicular," and "same," as well as terms such as "approximately parallel," "approximately perpendicular," and "approximately identical," which include certain errors and refer to a range of acceptable deviations for a particular value determined by a person skilled in the art, taking into account the errors associated with measurement and the measurement of a particular quantity (e.g., limitations of the measurement system). For example, "approximately" can mean within one or more standard deviations, or within 10% or 5% of the value. When the number of a component is not specifically specified in the following examples of the present disclosure, this means that the component may be one, multiple, or at least one. "At least one" means one or more, and "multiple" means at least two.

[0032] Through research, the inventors of the present application discovered the following: The light-emitting functional layer of a light-emitting element may include multiple light-emitting layers arranged in a stacked configuration, with a charge-generating layer (CGL) disposed between at least two layers of the multiple light-emitting layers. When the charge-generating layers have high conductivity and are a single, continuous film layer, the charge-generating layers of two adjacent light-emitting elements are continuous film layers, and the lateral charge shift phenomenon exists, causing spectral crosstalk on the display substrate at low gray levels, such as crosstalk between adjacent subpixels, resulting in color cast on the display substrate. For example, the charge-generating layers are prone to crosstalk between subpixels of different colors at low brightness, resulting in color cast on the display substrate at low gray levels. Furthermore, when the second electrode on the display substrate is a single, continuous film layer, the lateral charge shift phenomenon exists, causing spectral crosstalk on the display substrate at low gray levels, resulting in color unevenness on the display substrate, which significantly affects the uniformity of the display product.

[0033] An embodiment of the present disclosure provides a display substrate and a display device, the display substrate including a base substrate and a plurality of sub-pixels disposed on the base substrate, each of at least some 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, a first electrode and a second electrode disposed on both sides of the light-emitting functional layer in a direction perpendicular to the base substrate, the first electrode being disposed between the light-emitting functional layer and the base substrate, and the light-emitting functional layer including a plurality of film layers. a blocking portion is provided between at least two adjacent subpixels, at least one of the light-emitting functional layers and at least a portion of the second electrode is cut by an edge of the blocking portion, and at least a portion of the second electrodes of the adjacently provided subpixels are continuously provided to form a mesh-like passage, the length in one direction of the orthogonal projection of the second electrodes of at least some of the subpixels on the base substrate is greater than the sum of the sizes of the orthogonal projections of the light-emitting areas of the subpixels arranged in that direction on the base substrate, the mesh-like passage includes a plurality of passages arranged in an intersecting manner, at least one passage has a non-uniform width, and the width of the portion of the passage with the non-uniform width that overlaps with the light-emitting area is greater than the width of the portion that overlaps with at least a portion other than the light-emitting area.

[0034] The blocking portion disposed on the display substrate of the present disclosure blocks at least one layer of the light-emitting functional layer and at least a portion of the second electrode. The shape of the blocking portion allows the second electrode to form a mesh-like passage, and the width of the mesh-like passage at the position corresponding to the light-emitting area is set wide, thereby improving the alignment of the arrangement relationship between the blocking portion and the sub-pixels, further reducing crosstalk between adjacent sub-pixels, and improving the conductivity of the second electrode. This minimizes the increase in resistance of the second electrode, which is advantageous for avoiding problems of excessive power consumption and brightness uniformity of the display substrate.

[0035] An embodiment of the present disclosure provides a display substrate including a base substrate and a plurality of sub-pixels, the plurality of sub-pixels being disposed on the base substrate, each of at least some 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 disposed on both sides of the light-emitting functional layer in a direction perpendicular to the base substrate, the first electrode being disposed between the light-emitting functional layer and the base substrate, the light-emitting functional layer including a plurality of film layers, a blocking portion 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 being cut off by an edge of the blocking portion, and at least a portion of the second electrode of adjacent sub-pixels being continuously disposed to form a mesh-like passage, the mesh-like passage including a plurality of intersecting passages, at least one passage having a non-uniform width, at least a portion of the edge of the non-uniform width passage being an edge of the blocking portion, the non-uniform width passage including a first passage portion overlapping the light-emitting region and a second passage portion located outside the light-emitting region, The straight lines perpendicular to the extension direction of the passages of non-uniform width include a first straight line passing through the orthogonal projection of the first passage portion on the base substrate and a second straight line passing through the orthogonal projection of the second passage portion on the base substrate, the length of the connecting line between the two intersections of the first straight line and the orthogonal projection of the edges of the blocking portions located on both sides of the first passage portion on the base substrate is a first connecting line length, the length of the connecting line between the two intersections of the second straight line and the orthogonal projection of the edges of the blocking portions located on both sides of the second passage portion on the base substrate is a second connecting line length, and the first connecting line length is equal to or greater than the second connecting line length.

[0036] The blocking portion disposed on the display substrate of the present disclosure blocks at least one layer of the light-emitting functional layer and at least a part of the second electrode. The blocking portion is shaped so that the second electrode forms a mesh-like passage, and the distance between the edges of the blocking portion on both sides of the first passage portion corresponding to the light-emitting area of ​​the mesh-like passage is equal to or greater than the distance between the edges of the blocking portion on both sides of the second passage portion corresponding to the non-light-emitting area. This further reduces crosstalk between adjacent sub-pixels and improves the conductivity of the second electrode, ensuring that the resistance of the second electrode does not increase as much as possible, which is advantageous for avoiding problems of excessive power consumption and brightness uniformity of the display substrate.

[0037] Hereinafter, a display substrate and a display device according to an embodiment of the present disclosure will be described with reference to the drawings.

[0038] Figures 1 to 3 are schematic diagrams of partial planar structures of display substrates according to embodiments of the present disclosure. Figure 4A is a schematic diagram of a partial cross-sectional structure taken along line AA' shown in Figure 1. Figure 1 shows the first electrodes of light-emitting elements but not the second electrodes of the light-emitting elements, and Figures 2 and 3 show the second electrodes of the light-emitting elements but not the first electrodes of the light-emitting elements.

[0039] As shown in FIGS. 1 to 4A, the display substrate includes a base substrate 01 and a plurality of subpixels 10 located on the base substrate 01. Each of at least some of the subpixels 10 includes a light-emitting element 100. The light-emitting element 100 includes a light-emitting region 101. The light-emitting element 100 includes a light-emitting functional layer 130 and a first electrode 110 and a second electrode 120 located on both sides of the light-emitting functional layer 130 in a direction perpendicular to the base substrate 01 (the Z direction shown in FIG. 4A). The first electrode 110 is located between the light-emitting functional layer 130 and the base substrate 01, and the second electrode 120 is located on the side of the light-emitting functional layer 130 away from the base substrate 01. The light-emitting functional layer 130 includes a plurality of film layers. For example, the light-emitting functional layer 130 includes a charge generation layer 133. For example, the light-emitting element 100 may be an organic light-emitting element. For example, each subpixel located in the display region includes a light-emitting element.

[0040] 1 to 4A, a blocking portion 210 is provided between at least two adjacent subpixels 10, at least one layer of the light-emitting functional layer 130 and at least a portion of the second electrode 120 are cut off by the edges of the blocking portion 210, and at least a portion of the second electrode 120 of the adjacent subpixels 10 is continuously provided to form a mesh-like path 30. For example, a blocking portion 210 is provided between any adjacent subpixels 10. For example, between the adjacent subpixels 10, at least the second electrode 120 at a position where no blocking portion 210 is provided is continuously provided.

[0041] For example, the orthogonal projection of the second electrode 120 on the base substrate 01 in at least some of the sub-pixels 10 is a full-surface structure.

[0042] 1 to 4A, the length of the second electrodes 120 of at least some of the subpixels 10 in one direction as orthogonally projected onto the base substrate 01 is greater than the sum of the sizes of the light-emitting regions 101 of the subpixels 10 arranged in that direction as orthogonally projected onto the base substrate 01. For example, the above-mentioned "one direction" includes the row direction or the column direction. For example, one of the X and Y directions shown in the figures may be the row direction, and the other may be the column direction.

[0043] As shown in FIGS. 1 to 4A, the mesh-like passage 30 includes a plurality of intersecting passages 300, at least one of which has a non-uniform width, and the width of the portion of the non-uniform width passage 300 that overlaps with the light-emitting region 101 is greater than the width of the portion of the non-uniform width passage 300 that overlaps with at least a portion of the light-emitting region 101. For example, the orthogonal projection of the widest position of at least one of the passages 300 on the base substrate 01 overlaps with the orthogonal projection of the light-emitting region 101 on the base substrate 01. FIG. 3 exemplarily shows one passage 300 with a non-uniform width, where the orthogonal projection of the widest position of the passage 300 on the base substrate 01 overlaps with the orthogonal projection of the light-emitting region 101 on the base substrate 01, and the narrowest position of the passage 300 overlaps with the space between adjacent light-emitting regions 101. For example, the widths of the passages 300 corresponding to different light-emitting regions 101 may be different.

[0044] The blocking portion installed on the display substrate of the present disclosure blocks at least one layer of the light-emitting functional layer and at least a part of the second electrode. By configuring the shape of the blocking portion, the second electrode forms a mesh-like passage, and the width of the mesh-like passage at the position corresponding to the light-emitting area is set wide, thereby improving the alignment of the arrangement relationship between the blocking portion and the sub-pixels, further reducing crosstalk between adjacent sub-pixels, and improving the conductivity effect of the second electrode, which is advantageous for avoiding the problems of excessive power consumption and brightness uniformity of the display substrate.

[0045] The above-mentioned "net-like passage" refers to the fact that when forming the blocking portion and then forming the second electrode on the entire surface, the second electrode is cut at at least one blocking portion position, and the continuous portion of the second electrode other than the cut position forms a connecting channel with a net-like structure, which is a channel for transferring charges and is formed as a charge passage.

[0046] In any embodiment of the present disclosure, "adjacent subpixels" refers to two subpixels 10 with no other subpixels 10 disposed between them.

[0047] 4A , 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 high conductivity, which provides the light-emitting functional layer with the advantages of a long service life, low power consumption, and high brightness. For example, by providing a charge-generating layer on the light-emitting functional layer, the light-emitting brightness of a subpixel can be improved by approximately 1-fold compared to a light-emitting functional layer without a charge-generating layer.

[0048] For example, the light emitting elements 100 of the same subpixel 10 may be tandem light emitting elements, such as a Tandem OLED.

[0049] For example, the charge generating layer 133 may include an N-type charge generating layer and a P-type charge generating layer.

[0050] For example, in each subpixel 10, the light-emitting functional layer 130 may further include a hole injection layer (HIL), a hole transport layer (HTL), an electron transport layer (ETL), and an electron injection layer (EIL).

[0051] For example, the hole injection layer, hole transport layer, electron transport layer, electron injection layer, and charge generation layer 133 are all film layers shared by multiple subpixels 10 and may be referred to as a common layer. For example, the second electrode 120 in multiple subpixels 10 may be a common electrode shared by multiple subpixels 10, and if there is no blocking portion 210 between the two adjacent subpixels 10, the second electrode 120 is a complete single film layer.

[0052] For example, the first electrode 110 may be an anode, and the second electrode 120 may be a cathode. For example, the cathode may be formed of a highly conductive and low work function material, for example, the cathode may be made of a metallic material. For example, the anode may be formed of a transparent conductive material with a high work function.

[0053] For example, at least one film layer in the light-emitting functional layer 130 cut at the edge of the blocking portion 210 may be at least one film layer in the common layer. For example, all film layers in the light-emitting functional layer 130 and the second electrode 120 are cut at the blocking portion 210. Cutting at least one film layer in the common layer at the edge of the blocking portion 210 located between adjacent subpixels is advantageous in reducing the probability of crosstalk occurring between adjacent subpixels. For example, the common layer and the second electrode may be film layers formed using an open mask.

[0054] For example, the second light-emitting layer 132 may be located between the first light-emitting layer 131 and the second electrode 120, and the hole injection layer may be located between the first electrode 110 and the first light-emitting layer 131. For example, an electron transport layer may be further provided between the charge generation layer 133 and the first light-emitting layer 131. For example, a hole transport layer may be provided between the second light-emitting layer 132 and the charge generation layer 133. For example, an electron transport layer and an electron injection layer may be provided between the second light-emitting layer 132 and the second electrode 120.

[0055] For example, in the same subpixel 10, the first light-emitting layer 131 and the second light-emitting layer 132 may be light-emitting layers that emit light of the same color. For example, the first light-emitting layer 131 in subpixels 10 that emit light of different colors emits light of different colors. For example, the second light-emitting layer 132 in subpixels 10 that emit light of different colors emits light of different colors. Of course, the embodiments of the present disclosure are not limited thereto. For example, in the same subpixel 10, the first light-emitting layer 131 and the second light-emitting layer 132 may be light-emitting layers that emit light of different colors. By providing light-emitting layers that emit light of different colors in the same subpixel 10, light emitted from multiple light-emitting layers included in the subpixel 10 can be mixed into white light, and the color of light emitted from each subpixel can be adjusted by providing a color filter layer.

[0056] For example, as shown in FIGS. 1 to 4A , the plurality of subpixels 10 may include subpixels 10 of different colors, and the widths of the overlapping portions between the passage 300 and the light-emitting regions 101 of the subpixels 10 of different colors may be different. For example, the subpixels of different colors may include blue, red, and green subpixels. For example, the width of the overlapping portion between the passage and the light-emitting region of the blue subpixel may be greater than the width of the overlapping portion between the passage and the light-emitting region of the green subpixel; however, the embodiments of the present disclosure are not limited thereto. Depending on product needs, for example, if the voltage drop of the second electrode of a subpixel of a certain color significantly affects the display product, the width of the passage of the second electrode overlapping with the light-emitting region of the subpixel of that color may be set wider. For example, the subpixel of a certain color may be a green subpixel.

[0057] For example, light-emitting layers on the same side of the charge generation layer 133 in adjacent subpixels 10 may overlap or be spaced apart. For example, light-emitting layers on the same side of the charge generation layer 133 in adjacent subpixels 10 may be spaced apart at the edge of the blocking portion 210, but are not limited to this. Light-emitting layers on the same side of the charge generation layer 133 in adjacent subpixels 10 may overlap or be spaced apart at the pixel-limiting portion (described later).

[0058] For example, the material of the electron transport layer may include an aromatic heterocyclic compound such as an imidazole derivative such as a benzimidazole derivative, an imidazopyridine derivative, or a benzimidazophenanthridine derivative; an azine derivative such as a pyrimidine derivative or a triazine derivative; or a compound having a nitrogen-containing six-membered ring structure such as a quinoline derivative, an isoquinoline derivative, or a phenanthroline derivative (including a compound having a phosphine oxide-based substituent on the heterocycle).

[0059] For example, the material of the charge generating layer 133 may be a material containing a phosphate group or a material containing triazine.

[0060] For example, the ratio of the electron mobility of the material of the charge generating layer 133 to the electron mobility of the electron transport layer is 10 -2~10 2 is.

[0061] 4A, at least one layer of the light-emitting functional layer 130 may be a charge generation layer 133, in which the orthogonal projection of the first charge generation layer on the base substrate 01 of the charge generation layer 133 is continuous, and the orthogonal projection of the second charge generation layer on a plane perpendicular to the base substrate 01 (e.g., the ZV plane) is not continuous. For example, the charge generation layer 133 may include a portion located in the blocking portion 210 and a portion not located in the blocking portion 210, and these two portions are separated by the edge of the blocking portion 210. For example, the orthogonal projections of the first charge generation layer on the base substrate 01 of these two portions may be connected or overlapped, and the orthogonal projections of the first charge generation layer are continuous.

[0062] For example, the light-emitting functional layer 130 includes at least one light-emitting layer, and the film layer of the light-emitting functional layer 130 cut at the blocking portion 210 includes at least one light-emitting layer and at least one other film layer, and the area of ​​the orthogonal projection of the at least one other cut film layer on the base substrate 01 is larger than the area of ​​the orthogonal projection of the at least one light-emitting layer on the base substrate 01, or the area of ​​the portion of the at least one other cut film layer covering the blocking portion 210 is larger than the area of ​​the portion of the at least one light-emitting layer covering the blocking portion 210.

[0063] For example, as shown in FIG. 4A, the orthogonal projection of at least one of the film layers included in the second electrode 120 and the light-emitting functional layer 130 on the base substrate 01 overlaps with the orthogonal projection of the blocking portion 210 on the base substrate 01.

[0064] For example, at least a portion of at least one of the plurality of film layers included in the light-emitting functional layer 130 covers a portion of the side surface of the blocking portion 210 .

[0065] 4A , the display substrate further includes a pixel-limiting pattern 400 and an insulating layer 500. The pixel-limiting pattern 400 is located on a side of the first electrode 110 that faces away from the base substrate 01 from the light-emitting element 100, and the insulating layer 500 is located between the pixel-limiting pattern 400 and the base substrate 01. The pixel-limiting pattern 400 includes a plurality of first openings 410, each of which corresponds to at least one first opening 410. At least a portion of the light-emitting element 100 of each subpixel 10 is located in the first opening 410 corresponding to the subpixel 10, and the first opening 410 is configured to expose the first electrode 110. For example, the pixel-limiting pattern 400 includes a pixel-limiting portion 401 surrounding the first opening 410.

[0066] 4A, when the light-emitting functional layer 130 is formed in the first opening 410 of the pixel-limiting pattern 400, the first electrode 110 and the second electrode 120 located on both sides of the light-emitting functional layer 130 can cause the light-emitting functional layer 130 to emit light in the first opening 410. For example, the first opening 410 of the pixel-limiting pattern 400 is used to define the light-emitting region 101 of the light-emitting element 100, and the outline of the central region of each sub-pixel 10 in FIGS. 1 to 3 represents the light-emitting region 101. In FIG. 1, the outline surrounding the light-emitting region 101 is the first electrode 110.

[0067] The light-emitting area 101 refers to the effective light-emitting area of ​​the sub-pixel, and the shape of the light-emitting area refers to a two-dimensional shape. For example, the shape of the light-emitting area may be the same as the shape of the first opening 410 of the pixel-limiting pattern 400 .

[0068] For example, as shown in FIG. 4A, the material of the pixel limiting portion 401 may include polyimide, acrylic, polyethylene terephthalate, or the like.

[0069] In some examples, as shown in FIGS. 1 to 4A , the pixel limiting pattern 400 further includes a second opening 420, which is configured to expose the blocking portion 210, and the blocking portion 210 is located between the light-emitting functional layer 130 and the insulating layer 500. For example, the pixel limiting portion 401 surrounds the second opening 420. For example, the second opening 420 is located between adjacent subpixels 10. For example, at least one second opening 420 is provided between adjacent first openings 410. For example, the orthogonal projection of the blocking portion 210 on the base substrate 01 and the orthogonal projection of the pixel limiting portion 401 on the base substrate 01 do not overlap. For example, the pixel limiting portion 401 other than the first opening 410 and the second opening 420 in the pixel limiting pattern 400 may have a continuous structure.

[0070] 1 to 4A , in some examples, the display substrate further includes a limiting structure 200 located between the light-emitting functional layer 130 and the insulating layer 500. The limiting structure 200 surrounds the light-emitting region 101 of each of at least some of the subpixels 10, at least a portion of the limiting structure 200 is located on the side of the first electrode 110 away from the base substrate 01, and the portion of the limiting structure 200 exposed through the second opening 420 includes a blocking portion 210. For example, the blocking portion 210 is a part of the limiting structure 200, and the overlapping portion between the limiting structure 200 and the pixel limiting portion 401 in the direction perpendicular to the base substrate 01 is a portion other than the blocking portion 210 that is not used to block at least one layer of the light-emitting functional layer 130.

[0071] 1 to 4A, the blocking portion 210 and the first electrode 110 of the light-emitting element 10 do not overlap in a direction perpendicular to the base substrate 01. For example, the blocking portion 210 may be provided in the same layer as the first electrode 110, and both the first electrode 110 and the blocking portion 210 may be provided on the surface of the insulating layer 500 away from the base substrate 01.

[0072] 1 to 4A, a portion of the limiting structure 200 may cover the edge of the first electrode 110, for example, covering one or a portion of the circumferential edge of the first electrode 110, which is advantageous for avoiding loss of edge material (e.g., silver ions) from the first electrode. For example, the portion of the limiting structure 200 covering the first electrode 110 is covered by the pixel limiting portion 401, i.e., the portion of the limiting structure 200 covering the first electrode 110 is located in the region between the first opening 410 and the second opening 420.

[0073] 1 to 4A, the confining structures 200 surrounding the light-emitting regions 101 of different subpixels 10 may be an integrated structure. For example, the subpixels 10 may include multiple rows of subpixels arranged in the X direction, and the confining structures 200 corresponding to every two rows of subpixels may be an integrated structure. For example, the confining structures 200 corresponding to the subpixels in the first row and the subpixels in the second row may be an integrated structure, with a gap provided between the confining structure 200 corresponding to the subpixels in the third row and the confining structure 200 corresponding to the subpixels in the second row. In the present disclosure, providing the confining structures surrounding the light-emitting regions of different subpixels as an integrated structure makes it easier to pattern the confining structures.

[0074] For example, as shown in FIG. 4A, the limiting structure 200 includes three film layers stacked together, such as a first limiting structure layer 201, a second limiting structure layer 202, and a third limiting structure layer 203, and the edges of the first limiting structure layer 201 and the third limiting structure layer 203 at the blocking portion 210 all 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 cut off by the edge of the first limiting structure layer 201.

[0075] For example, the material of the limiting structure 200 may include an inorganic non-metallic material. For example, the material of the limiting structure 200 may include one or more of silicon nitride, silicon oxide, or silicon oxynitride. For example, the material of the first limiting structure layer 201 and the third limiting structure layer 203 may include silicon oxide, and the material of the second limiting structure layer 202 may include silicon nitride.

[0076] 4A, the thickness of the confinement structure 200 may be less than the thickness of the first electrode 110. For example, the thickness of the confinement structure 200 may be greater than 400 angstroms.

[0077] Figure 4A does not show other film layers between the insulating layer and the base substrate. For example, pixel circuits electrically connected to the light-emitting elements, various signal lines, and other insulating layers may be further installed between the insulating layer and the base substrate. For example, the other insulating layers may include a planarization layer, a passivation layer, a buffer layer, a gate insulating layer, an interlayer insulating layer, etc.

[0078] 4B to 4D are schematic diagrams of partial cross-sectional structures including a blocking portion provided by different examples according to the embodiments of the present disclosure. The pixel limiting pattern is not shown in FIGS. 4B to 4D, and FIG. 5 is a schematic diagram of a structure in which the pixel limiting pattern is installed in the blocking portion shown in FIG. 4C. The blocking portion 210 shown in the figures may be in a state in which the limiting structure is completely exposed to the opening of the pixel limiting pattern.

[0079] The difference between the example shown in FIGS. 4B-5 and the example shown in FIG. 4A is that at least a portion of the limiting structure 200 is located between the first electrode 110 and the insulating layer 500.

[0080] For example, as shown in Figures 4B to 5, the side of the insulating layer 500 away from the base substrate 01 includes a protrusion 510, and the orthogonal projection of the protrusion 510 on the base substrate 01 overlaps with the orthogonal projection of the blocking portion 210 on the base substrate 01, and the blocking portion 210 contacts the protrusion 510.

[0081] 4B to 4D, the material of the blocking portion 210 includes an inorganic non-metallic material, and the material of the insulating layer 500 includes an organic material. For example, the orthogonal projection of the protrusion 510 on the base substrate 01 is completely located within the orthogonal projection of the blocking portion 210 on the base substrate 01.

[0082] For example, as shown in Figures 4B to 4D, at least one edge of the blocking portion 210 protrudes beyond the edge of the protruding portion 510 to block the film layer. For example, the edge of the blocking portion 210 and the edge of the protruding portion 510 may be flush with each other. For example, at least a portion of the edge of the blocking portion protrudes beyond the edge of the protruding portion by less than 1 micron. For example, at least a portion of the edge of the blocking portion protrudes beyond the edge of the protruding portion by less than 0.08 microns. For example, at least a portion of the edge of the blocking portion protrudes beyond the edge of the protruding portion by less than 0.05 microns. For example, at least a portion of the edge of the blocking portion protrudes beyond the edge of the protruding portion by less than 0.02 microns.

[0083] 4B , the blocking portion 210 includes a first blocking structure layer 2011, a second blocking structure layer 2012, and a third blocking structure layer 2013 stacked in this order, and the edges of the first blocking structure layer 2011 and the third blocking structure layer 2013 all protrude relative to the edge of the second blocking structure layer 2012. For example, the edge of the second blocking structure layer 2012 is recessed relative to the edge of the first blocking structure layer 2011 by 0.05 microns or more. For example, the edge of the second blocking structure layer 2012 is recessed relative to the edge of the first blocking structure layer 2011 by 0.08 microns or more. For example, the edge of the second blocking structure layer 2012 is recessed relative to the edge of the first blocking structure layer 2011 by 0.1 microns or more. For example, the edge of the second blocking structure layer 2012 is recessed relative to the edge of the first blocking structure layer 2011 by 0.15 microns or more. For example, the edge of the second blocking structure layer 2012 is recessed from the edge of the first blocking structure layer 2011 by 0.2 microns or more. For example, the edge of the second blocking structure layer 2012 is recessed from the edge of the first blocking structure layer 2011 by 0.5 microns or more.

[0084] For example, as shown in FIG. 4B, the thickness of the blocking portion 210 may be 150 to 5000 angstroms. For example, the thickness of the blocking portion 210 may be 200 to 500 angstroms. For example, the thickness of the blocking portion 210 may be 300 to 1000 angstroms. For example, the thickness of the blocking portion 210 may be 400 to 2000 angstroms. For example, the thickness of the blocking portion 210 may be 600 to 1500 angstroms.

[0085] For example, as shown in Fig. 4B, the thickness of the protrusion 510 may be 400 to 5000 angstroms. For example, the thickness of the protrusion 510 may be 450 to 4000 angstroms. For example, the thickness of the protrusion 510 may be 500 to 3000 angstroms. For example, the thickness of the protrusion 510 may be 600 to 2000 angstroms.

[0086] For example, as shown in FIG. 4B , the central position of the protrusion 510 is in a direction parallel to the base substrate 01, and the size in the X direction shown in FIG. 4B is less than the size in that direction of the positions on both sides of the protrusion 510. For example, the central position of the protrusion 510 is recessed by more than 0.01 microns relative to the positions on both sides. For example, the central position of the protrusion 510 is recessed by more than 0.02 microns relative to the positions on both sides. For example, the central position of the protrusion 510 is recessed by more than 0.03 microns relative to the positions on both sides. For example, the central position of the protrusion 510 is recessed by more than 0.05 microns relative to the positions on both sides.

[0087] For example, as shown in FIG. 4B , the insulating layer 500 may include a flat portion 520 at a location other than the protruding portion 510, and the portion of the protruding portion 510 connected to the flat portion 520 may be recessed to better shield the common layer. For example, the edge of the protruding portion 510 may have a slanted side, and the included angle between the side and the flat portion may be 150 degrees or less so that the protruding portion and the shielding portion can jointly shield the common layer. For example, the included angle between the side and the flat portion may be 140 degrees or less. For example, the included angle between the side and the flat portion may be 130 degrees or less. For example, the included angle between the side and the flat portion may be 120 degrees or less. For example, the included angle between the side and the flat portion may be 110 degrees or less. For example, the included angle between the side and the flat portion may be 100 degrees or less.

[0088] For example, as shown in FIG. 4B , at least one edge of the third barrier structure layer 2013 protrudes beyond at least one edge of the protrusion 510. For example, at least one edge of the first barrier structure layer 2011 protrudes beyond at least one edge of the third barrier structure layer 2013 to achieve better isolation of the common layer. For example, at least one edge of the first barrier structure layer 2011 protrudes beyond at least one edge of the third barrier structure layer 2013 by 0.08 microns or more. For example, at least one edge of the first barrier structure layer 2011 protrudes beyond at least one edge of the third barrier structure layer 2013 by 0.1 microns or more. For example, at least one edge of the first barrier structure layer 2011 protrudes beyond at least one edge of the third barrier structure layer 2013 by 0.15 microns or more. Of course, the embodiments of the present disclosure are not limited thereto, and the edge of the protrusion may protrude very slightly beyond the edge of the third barrier structure layer.

[0089] The display substrate shown in Figure 4C is different from the display substrate shown in Figure 4B in the number of film layers included in the blocking portion 210. The protrusion shown in Figure 4C may have the same features as the protrusion shown in Figure 4B, and will not be described again here.

[0090] For example, as shown in FIG. 4C, the blocking portion 210 includes one film layer. For example, the thickness of the blocking portion 210 may be 100 to 5000 angstroms. For example, the thickness of the blocking portion 210 may be 200 to 4000 angstroms. For example, the thickness of the blocking portion 210 may be 300 to 3500 angstroms. For example, the thickness of the blocking portion 210 may be 400 to 2000 angstroms. For example, the thickness of the blocking portion 210 may be 500 to 1000 angstroms.

[0091] The display substrate shown in FIG. 4C is different from the display substrate shown in FIG. 4B in the number of film layers included in the blocking portion 210. In FIG.

[0092] 4C , the blocking portion 210 may include two film layers, for example, the blocking portion 210 includes a first blocking structure layer 2011 and a second blocking structure layer 2012 stacked together, the first blocking structure layer 2011 being located on the side of the second blocking structure layer 2012 that is farther from the base substrate 01, and the edge of the first blocking structure layer 2011 protruding beyond the edge of the second blocking structure layer 2012. For example, the edge of the second blocking structure layer 2012 protruding beyond the edge of the protrusion 510.

[0093] The protrusion shown in FIG. 4C may have the same characteristics as the protrusion shown in FIG. 4B, but is not limited thereto, and the side of the protrusion shown in FIG. 4C may not have a recessed portion. For example, the included angle between the side and the flat portion of the insulating layer is 140 degrees or less. For example, the included angle between the side and the flat portion is 130 degrees or less. For example, the included angle between the side and the flat portion is 120 degrees or less. For example, the included angle between the side and the flat portion is 110 degrees or less. For example, the included angle between the side and the flat portion is 100 degrees or less.

[0094] For example, as shown in FIG. 5 , the confining structure 200 is formed between the first subpixel electrode 110 and the base substrate 01. For example, before forming the first subpixel electrode 110, the confining structure 200 is first deposited on an insulating layer 500, such as a planar layer, and then the first subpixel electrode 110 is formed on the confining structure 200. When forming the confining structure 200 including the blocking portion 210 on the display substrate, the planar layer 500 located at the bottom of the confining structure 200 is etched to form a sawtooth pattern. Forming the first electrode into the confining structure can prevent the sawtooth problem that exists in the first electrode due to the unevenness of the planar layer, thereby reducing the occurrence of display defects. For example, the orthographic projection of the first electrode 110 on the base substrate 01 may be completely located within the orthographic projection of the confining structure 200 on the base substrate 01.

[0095] For example, the limiting structure located directly below the first electrode 110 and the limiting structure exposed through the second opening 420 of the pixel limiting pattern 400 may be an integrated limiting structure or may be spaced apart.

[0096] In the display substrate of the present application, after a pattern of a subpixel first electrode is deposited and etched on an insulating layer, e.g., a planar layer, a confining structure, e.g., a stacked structure such as SiOx / SiNx / SiOx, is coated around the first electrode. When the confining structure is etched, the SiNx film layer in the confining structure is more easily etched than SiOx, resulting in a "U" shape being formed at the edge of the confining structure after etching is completed. This shape is advantageous for blocking at least one layer of the light-emitting functional layer when deposited on the blocking portion of the confining structure, thereby reducing crosstalk between adjacent light-emitting regions. For example, the pixel confining film layer deposited on the confining structure may be patterned to form a second opening to expose the blocking portion at the edge of the confining structure, thereby blocking at least one layer of the light-emitting functional layer. The subpixel second electrode formed at the edge of the confining structure covered by the pixel confining structure is continuous, forming a charge transfer path and realizing the conduction effect of the second electrode.

[0097] The blocking part according to the present disclosure is not limited to the shape and position shown in FIG. 4A. For example, the blocking part may further include a first sub-blocking structure and a second sub-blocking structure that are stacked and installed. The first sub-blocking structure is located between the second sub-blocking structure and the base substrate. Along the arrangement direction of adjacent sub-pixels, the size of the first sub-blocking structure in the blocking part located between the adjacent sub-pixels is less than the size of the second sub-blocking structure such that the second sub-blocking structure includes a portion protruding with respect to the edge of the first sub-blocking structure, or at least a part of the side surface of the first sub-blocking structure and the inclination angle between the plane parallel to the contact surface of the first sub-blocking structure and the second sub-blocking structure is greater than 60 degrees and less than 120 degrees, and / or at least a part of the side surface of the second sub-blocking structure and the inclination angle between the plane parallel to the contact surface of the first sub-blocking structure and the second sub-blocking structure is greater than 60 degrees and less than 120 degrees. For example, the blocking part may be formed between pixel defining patterns. For example, it is located in an opening provided in an insulating layer and exposed in a second opening of the pixel defining pattern, or the blocking part may be located between adjacent sub-pixels and installed at a distance from the first electrode. The second opening of the pixel defining pattern exposes the blocking part, or the blocking part is located on the side of the pixel defining part away from the base substrate.

[0098] The blocking part according to the present disclosure is not limited to the shape and position shown in FIG. 4A. For example, the blocking part may further include a concave groove located in an insulating layer and a shielding part located at the edge of the concave groove and protruding into the opening of the concave groove. The shielding part in the blocking part is located between adjacent sub-pixels and installed at a distance from the first electrodes of the adjacent sub-pixels. For example, the blocking part may further include a concave groove located in a pixel defining part and a shielding part located at the edge of the concave groove and protruding into the concave groove.

[0099] 4A , the blocking portion of the present disclosure is not limited to the shape and position shown in FIG. 4A . For example, the blocking portion may further include a first minor blocking portion and a second minor blocking portion stacked together, the first minor blocking portion being located between the second minor blocking portion and the base substrate, the first minor blocking portion being made of an inorganic material and the second minor blocking portion being made of an organic material, and the second minor blocking portion having a protrusion extending beyond an edge of the first minor blocking portion, the protrusion being located between adjacent subpixels, and at least a portion of the second minor blocking portion facing one of the adjacent subpixels having a different shape from at least a portion of the second subpixel facing the other adjacent subpixel. The second minor blocking portion of the blocking portion may be part of a pixel-limiting portion, and the first minor blocking portion may be located in the same layer as the first electrode of the subpixel, or the first minor blocking portion may be part of the first electrode of the subpixel.

[0100] The blocking portion according to the present disclosure is not limited to the shape and position shown in FIG. 4A . For example, the blocking portion may include a first sub-structure and a second sub-structure stacked together, the first sub-structure being located between the second sub-structure and the base substrate, the first sub-structure being made of a different material from the second sub-structure, the edge of the second sub-structure in the limiting structure located between the adjacent sub-pixels along the arrangement direction of the adjacent sub-pixels protruding relative to the edge of the first sub-structure to form a protrusion, or the inclination angle between at least a portion of the side of the second sub-structure and a plane parallel to the contact surface between the first sub-structure and the second sub-structure is a first inclination angle, the inclination angle between at least a portion of the side of the first sub-structure and a plane parallel to the contact surface between the first sub-structure and the second sub-structure is a second inclination angle, at least one of the first inclination angle and the second inclination angle is greater than 60 degrees, and the surface area of ​​the second sub-structure close to the first sub-structure is greater than or equal to the area of ​​the contact surface between the first sub-structure and the second sub-structure. The blocking portion and the first electrode of the sub-pixel are spaced apart from each other.

[0101] FIG. 2 shows exemplary locations of multiple passageways, but does not characterize different passageway widths.

[0102] In some examples, as shown in FIG. 2, the multiple passages 300 include multiple main passages 310 and multiple branch passages 320, and both ends of at least one branch passage 320 are connected to the main passage 310 that extends in a direction that intersects with or extends in the same direction.

[0103] For example, the multiple main passages 310 include a first main passage 311 and a second main passage 312 whose extension directions intersect. For example, the multiple main passages 310 include a multiple first main passages 311 extending in the X direction and a multiple second main passages 312 extending in the Y direction. If the first main passage is not a straight line, for example, a broken line, the extension direction of the first main passage may refer to the overall extension direction of the first main passage, for example, the overall extension direction of the broken line is the X direction. If the second main passage is not a straight line, for example, a broken line, the extension direction of the second main passage may refer to the overall extension direction of the second main passage, for example, the overall extension direction of the broken line is the X direction.

[0104] For example, the included angle between the X direction and the Y direction may be 30 to 150 degrees. For example, the included angle between the X direction and the Y direction may be 60 to 120 degrees. For example, the included angle between the X direction and the Y direction may be 80 to 100 degrees. For example, the X direction may be perpendicular to the Y direction.

[0105] For example, as shown in FIG. 2, a plurality of first main passages 311 and a plurality of second main passages 312 form part of a mesh-like passage 30, the first main passages 311 are connected to the second main passages 312, and the charges transferred by the second electrode 120 may be transferred in the first main passages 311 and the second main passages 312.

[0106] In some examples, as shown in FIG. 2, a plurality of main passages 310 penetrate the area where at least some of the subpixels 10 are located.

[0107] For example, the length of the main passage 310 is longer than the length of the branch passage 320. For example, the area of ​​the region where the main passage 310 is located is larger than the area of ​​the region where the branch passage 320 is located. For example, the area of ​​the region where the main passage 310 passes is larger than the area of ​​the region where the branch passage 320 passes. For example, the number of light-emitting regions 101 of the sub-pixels 10 that the main passage 310 passes through is larger than the number of light-emitting regions 101 of the sub-pixels 10 that the branch passages 320 pass through. The passage passing through the light-emitting regions of the sub-pixels means that the orthogonal projection of the passage on the base substrate overlaps with the orthogonal projection of the light-emitting regions of the sub-pixels on the base substrate.

[0108] For example, the main passages 310 may penetrate the display region in their extending direction, for example, the main passages 310 extending in the X direction may penetrate the display region in which the subpixels 10 are located in the X direction, and the main passages 310 extending in the Y direction may penetrate the display region in which the subpixels 10 are located in the Y direction. For example, the branch passages 320 may be located only in one or several small areas of the areas in which the main passages 310 are located, for example, the branch passage 320 may be located in an area surrounded by four main passages 310 that are arranged to intersect.

[0109] 2, both ends of at least one branch passage 320 are connected to the first main passage 311 and the second main passage 312, respectively. For example, the passage 300 includes a plurality of branch passages 320, and both ends of at least some of the branch passages 320 are connected to the first main passage 311 and the second main passage 312, respectively. For example, the shapes of the different branch passages 320 may be the same or different. For example, the lengths of the different branch passages 320 may be the same or different. The connection of the branch passage with the main passage may refer to a structure in which the second electrode at the position of the branch passage and the second electrode at the position of the main passage are continuous, i.e., are installed integrally.

[0110] 2, the shape of the at least one branch passage 320 may be a broken line, and both ends of the broken line may be connected to the first main passage 311 and the second main passage 312, respectively. For example, the branch passage 320 may penetrate the light-emitting region 101 of at least one sub-pixel 10.

[0111] For example, as shown in FIG. 2, the branch passage 320 may communicate with the main passage 310, and the charge transferred by the second electrode 120 may be transferred to the branch passage 320 and the main passage 310.

[0112] In some other examples, both ends of at least one branch passage 320 are connected to one of the first main passage 311 and the second main passage 312. For example, both ends of at least one branch passage 320 may be connected to two different first main passages 311, respectively, or both ends of at least another branch passage 320 may be connected to two different second main passages 312, respectively. For example, the extension direction of the branch passage 320 may be different from both the extension direction of the first main passage 311 and the extension direction of the second main passage 312, or the extension direction of the branch passage 320 may be the same as the extension direction of one of the first main passage 311 and the second main passage 312.

[0113] In some examples, as shown in FIGS. 1 to 3 , the subpixels 10 include a plurality of first-color subpixels 11, a plurality of second-color subpixels 12, and a plurality of third-color subpixels 13. The subpixels 10 are arranged as a plurality of first subpixel groups 001 and a plurality of second subpixel groups 002 that are alternately arranged along a first direction. Each first subpixel group 001 includes a plurality of first-color subpixels 11 and a plurality of second-color subpixels 12 that are alternately arranged along a second direction. Each second subpixel group 002 includes a plurality of third-color subpixels 13 that are arranged along the second direction. The first direction intersects with the second direction. For example, the first direction may be the X direction shown in FIG. 1 , and the second direction may be the Y direction shown in FIG. 1 , and the first direction and the second direction are interchangeable. For example, the included angle between the first direction and the second direction may be 80 to 120 degrees. For example, the first direction is perpendicular to the second direction. For example, one of the first and second directions may be the row direction, and the other may be the column direction. For example, when the first direction may be the row direction and the second direction may be the column direction, the first subpixel group may be the first subpixel column and the second subpixel group may be the second subpixel column, and when the first direction may be the column direction and the second direction may be the row direction, the first subpixel group may be the first subpixel row and the second subpixel group may be the second subpixel row.

[0114] In some examples, as shown in Figures 1 to 3, the first subpixel group 001 and the second subpixel group 002 are distributed with a shift in the second direction, and each first color subpixel 11 in at least some of the first color subpixels 11 is surrounded by eight subpixels 10, and the eight subpixels 10 include third color subpixels 13 and second color subpixels 12 arranged alternately.

[0115] 1 to 3, the first color subpixels 11 and the second color subpixels 12 are arranged alternately along the second direction, and the third color subpixels 13 are arranged in an array along the first and second directions. For example, in at least some of the second color subpixels 12, each second color subpixel 12 is surrounded by eight subpixels 10, and the eight subpixels 10 include third color subpixels 13 and first color subpixels 11 arranged alternately.

[0116] 1 to 3, one of the first color subpixel 11 and the second color subpixel 12 may be a red subpixel that emits red light, the other may be a blue subpixel that emits blue light, and the third color subpixel 13 may be a green subpixel that emits green light. For example, the first color subpixel 11 is a blue subpixel and the second color subpixel 12 is a red subpixel.

[0117] 1 to 3, the center of the light-emitting region of the first color subpixel 11 and the center of the light-emitting region of the second color subpixel 12 are on a straight line extending in the Y direction. For example, as shown in FIGS. 1 to 3, the angle between the line connecting the centers of the light-emitting regions 101 of the adjacent first color subpixels 11 and second color subpixels 12 arranged in the Y direction and the straight line extending in the Y direction is small, for example, 2 degrees or less.

[0118] For example, four third-color subpixels 13 are disposed at angles of 45°, 135°, 225°, and 315° from the center of the light-emitting area of ​​the first-color subpixel 11, respectively.

[0119] In some examples, as shown in FIG. 2, at least a portion of the main passage 310 passes through the second subpixel group 002.

[0120] To prevent serious crosstalk from occurring between the first and second color subpixels, such as between the red and blue subpixels, the main passage is configured to penetrate through the subpixel group including the third color subpixel, and the branch passages penetrate through the branch passages including the first and second color subpixels. For example, the blocking portions configured around the first and second color subpixels surround many edges of the corresponding light-emitting areas, blocking at least one common film layer between the first and second color subpixels and indirectly blocking at least one common film layer between the first and third color subpixels and between the second and third color subpixels. This allows the second electrode around the light-emitting area of ​​the third color subpixel to form a wide main passage, improving the charge transfer effect.

[0121] For example, at least a portion of the trunk passage 310 passes through the light-emitting area 101 of the third-color subpixel 13. The trunk passage passing through the second subpixel group means that the orthogonal projection of the trunk passage on the base substrate overlaps with the orthogonal projection of the light-emitting area of ​​the second subpixel group on the base substrate.

[0122] 2, the extension directions of the first main passage 311 and the second main passage 312 are both parallel to the arrangement direction of the third-color subpixels 13. For example, the second main passage 312 passes through the second subpixel group 002. For example, the first main passage 311 passes through the light-emitting region 101 of the third-color subpixel 13. For example, the passages 300 passing through the third-color subpixels 13 may all be main passages 310.

[0123] 2, the intersection of the first main passage 311 and the second main passage 312 overlaps with the light-emitting region 101 of the third color subpixel 13. For example, the width of the passage 300 is widest at the intersection of the first main passage 311 and the second main passage 312, improving the charge transfer efficiency.

[0124] 2, at least one branch passage 320 penetrates at least one of the first color subpixel 11 and the second color subpixel 12. The branch passage penetrating at least one of the first color subpixel and the second color subpixel means that the orthogonal projection of the branch passage on the base substrate overlaps with the orthogonal projection of at least one of the light-emitting regions of the first color subpixel and the second color subpixel on the base substrate.

[0125] 2, some of the branch passages 320 pass through the light-emitting regions 101 of the first color subpixels 11, and other branch passages 320 pass through the light-emitting regions 101 of the second color subpixels 12. However, the embodiments of the present disclosure are not limited thereto, and the branch passages may pass only through the light-emitting regions of the first color subpixels, or the branch passages may pass only through the light-emitting regions of the second color subpixels.

[0126] 1 and 2, the blocking portion 210 includes a non-closed annular first blocking portion 211 surrounding at least one first-color subpixel 11, at least two first notches 212 are formed in the non-closed annular first blocking portion 211, and at least one branch passage 320 passes through the first notch 212 to connect to the main passage 310. The first blocking portion refers to a limiting structure exposed from a second opening of the pixel-limiting pattern, and the first notch refers to a limiting structure covered by the pixel-limiting portion. The first blocking portion refers to a portion of the limiting structure surrounding the light-emitting region of the first-color subpixel that is exposed from the second opening.

[0127] For example, as shown in Figures 1 and 2, the blocking portions 210 surrounding each first-color subpixel 11 are all first blocking portions 211, and two first notches 212 are provided in the non-closed ring-shaped first blocking portion 211. One end of a branch passage 320 penetrating the light-emitting region 101 of each first-color subpixel 11 passes through one of the first notches 212 and is connected to the first main passage 311, and the other end of the branch passage 320 passes through the other first notch 212 and is connected to the second main passage 312. When two first notches are provided in the non-closed ring-shaped first blocking portion, the relative positions of the two first notches can be set so that both ends of a branch passage penetrating the light-emitting region of the first color subpixel pass through two different first notches and are connected to the first main passage and the second main passage, respectively, or both ends of the two first notches penetrating the light-emitting region of the first color subpixel are both connected to the first main passage or both connected to the second main passage.

[0128] For example, the number of first notches 212 arranged around the non-closed annular first blocking portion 211 of at least one first color subpixel 11 is more than two, and a branch passage 320 passes through each first notch 212 and connects to the main passage 310, and the number of first main passages 311 connected to the branch passage 320 may be the same as the number of second main passages 312 connected to the branch passage 320, or the two numbers may be different.

[0129] 2, at least one branch passage 320 penetrates at least two first notches 212 to form at least one L-shaped branch passage 320. The at least two first notches include one first notch located on one side of the light-emitting region of the first color subpixel in the first direction and one first notch located on the other side of the light-emitting region of the first color subpixel in the second direction.

[0130] For example, the orthogonal projection of the L-shaped branch passage 320 at a corner position on the base substrate overlaps with the orthogonal projection of the light-emitting region 101 of the first color subpixel 11 on the base substrate. While FIG. 2 exemplarily illustrates one first color subpixel corresponding to one L-shaped branch passage, this is not limiting. By setting the number and positions of the first notches, a first color subpixel may correspond to multiple L-shaped branch passages, and the L-shaped branch passages corresponding to the same first color subpixel may share some of the branch passages or may be spaced apart.

[0131] 1 and 2, at least a portion of the first blocking portion 211 is located between the first-color subpixel 11 and the third-color subpixel 13 adjacent to each other in the third direction, and both the first and second directions intersect with the third direction. For example, the third direction may be the V direction shown in FIG. 4A. The distance between the edges where the first blocking portion 211 and the light-emitting region 101 of the first-color subpixel 11 approach each other is a first distance D1, and the distance between the edges where the first blocking portion 211 and the light-emitting region 101 of the third-color subpixel 13 approach each other is a second distance D2, where the first distance D1 is less than the second distance D2. The edge of the first blocking portion refers to the edge of the first blocking portion exposed through the second opening of the pixel-limiting pattern.

[0132] For example, only one blocking portion 210, such as the first blocking portion 211, is provided between the adjacent first color subpixel 11 and third color subpixel 13, and the first blocking portion 211 is close to the first color subpixel 11, which increases the width of the overlapping position between the main path of the second electrode and the third color subpixel, and is advantageous for reducing the power consumption of the display substrate.

[0133] For example, the ratio of the first distance D1 to the second distance D2 may be 0.1 to 0.9. For example, the ratio of the first distance D1 to the second distance D2 may be 0.2 to 0.7. For example, the ratio of the first distance D1 to the second distance D2 may be 0.3 to 0.8. For example, the ratio of the first distance D1 to the second distance D2 may be 0.45 to 0.65. For example, the ratio of the first distance D1 to the second distance D2 may be 0.5 to 0.58. For example, the ratio of the first distance D1 to the second distance D2 may be 0.55 to 0.6.

[0134] 1 and 2, each first notch 212 is configured to expose at least one corner 1010 of the light-emitting region 101 of a first-color subpixel 11. For example, each first notch 212 exposes one corner 1010 of the light-emitting region 101 of a first-color subpixel 11, and different first notches 212 corresponding to the same first-color subpixel 11 are configured to expose different corners 1010 of the light-emitting region 101. For example, the two corners 1010 included in two first notches 212 corresponding to the same first-color subpixel 11 may be adjacent corners 1010 or opposite corners 1010.

[0135] In the embodiment of the present disclosure, the corner of the light-emitting area exposed from the notch does not have a blocking portion installed on the side away from the light-emitting area of ​​the corner, and refers to the connecting line between the vertex of the corner and the center of the light-emitting area.

[0136] For example, as shown in Figures 1 and 2, a blocking portion 210 is provided between a first notch 212 corresponding to a first color subpixel 11 and a second color subpixel 12 adjacent to the first color subpixel 11, thereby reducing crosstalk between the first color subpixel and the second color subpixel.

[0137] For example, as shown in Figures 1 and 2, a first blocking portion 211 is provided between a first color subpixel 11 and a third color subpixel 13 that are adjacent to each other in the third direction, a first blocking portion 211 or a first notch 212 is provided between a first color subpixel 11 and a second color subpixel 12 that are adjacent to each other in the first direction, and a first blocking portion 211 or a first notch 212 is provided between a first color subpixel 11 and a second color subpixel 12 that are adjacent to each other in the second direction.

[0138] 1, the first electrode 110 of each light-emitting element includes a main electrode 111 and a connection electrode 112 that are integrally disposed, the main electrode 111 overlaps the light-emitting region 101, and the shape of the main electrode 111 is substantially the same as the shape of the light-emitting region 101. For example, if the shape of the light-emitting region 101 is rectangular, the shape of the main electrode 111 is also rectangular, and the connection electrode 112 does not overlap with the light-emitting region 101. For example, each subpixel further includes a driving circuit, which is electrically connected to the first electrode of the light-emitting element to cause the light-emitting element to emit light. For example, the connection electrode 112 is electrically connected to the driving circuit.

[0139] 1, in the direction perpendicular to the base substrate 01, the first blocking portion 211 does not overlap the connection electrode 112, i.e., the pixel limiting portion overlaps the connection electrode 112. For example, a portion of the connection electrode 112 and the main electrode 111 is exposed from the first notch 212.

[0140] The display substrate of the present disclosure has a first blocking portion surrounding the light-emitting region of the first color subpixel arranged in a non-closed ring shape, which can increase the charge paths, such as branch paths, of the second electrode, thereby advantageously reducing crosstalk in the display substrate and preventing the power consumption of the display substrate for display from being too high.

[0141] For example, as shown in FIGS. 1 and 2, the size of the first notch 212 corresponding to the connection electrode 112 may be larger than the size of the other first notches 212.

[0142] FIG. 6 is an enlarged schematic view of a light-emitting region of one first-color sub-pixel shown in FIG.

[0143] In some examples, as shown in Figures 1 and 6, the sides or extensions of the light-emitting region 101 of at least one first-color subpixel 11 are connected in order to form a polygon 02, and the multiple vertex angles 021 of the polygon 02 have areas 022 that do not overlap with the multiple corners of the light-emitting region 101 corresponding to the vertex angles 021, and the light-emitting region 101 of at least one first-color subpixel 11 includes at least one specific corner 1011, and the area of ​​the area 022 of the specific corner 1011 that does not overlap with the corresponding vertex angle 021 of the polygon 02 is larger than the area of ​​the area of ​​each corner 1012 of at least some other corners 1012 that does not overlap with the vertex angle 021 of the polygon 02 corresponding to the corner 1012. For example, if the area of ​​another corner 1012 of the light-emitting region 101 of the first-color subpixel 11 that does not overlap with the vertex angle 021 of the polygon 02 corresponding to that corner 1012 is very small, for example, substantially zero, then that corner of the light-emitting region overlaps with the vertex angle of the polygon.

[0144] 6, the distance from the intersection of the extensions of two straight sides L1 and L2 that make up a particular corner 1011 to the center O of the light-emitting region of the subpixel is different from the distance from the intersection of two straight sides L3 and L4 that make up another corner 1012 to the center O of the subpixel. For example, the intersection of the two lines is the vertex of the other corner, and in this case, the other corner may be in a range of x micrometers along the contour from the vertex, where x may be 2 to 7 micrometers. For example, the specific corner may be a curve formed by the intersection of two adjacent sides extending to its vertex, thereby making the corner a rounded chamfer; for example, specific corner 1011 includes a rounded chamfer, and the vertex of the corner may be point P, where a connecting line connecting the intersection of the extension lines of the two sides forming the rounded chamfer and the vertex of the corner opposite the rounded chamfer intersects with the rounded chamfer, in this case, the corner may be in a range of x micrometers along the contour from vertex P as the center, where x may be 2 to 7 micrometers. When the specific corner is a rounded chamfer and the other corners are right angles or acute angles, the distance from the intersection point of the extension lines of the two straight sides constituting the specific corner to the center of the light-emitting region of the subpixel is less than the distance from the intersection point of the extension lines of the two straight sides constituting the other corner to the center of the light-emitting region of the subpixel.

[0145] The "rounded chamfer" refers to an apex angle formed by a curve, and the curve may be a circular arc or an irregular curve, such as a curve cut from an ellipse or a wavy line. In the embodiments of the present disclosure, the curve protrudes outward from the center of the subpixel, but this is not limiting. The curve may also have a concave shape toward the center of the subpixel. For example, if the curve is a circular arc, the central angle of the arc may range from 10° to 150°. For example, the central angle of the arc may range from 60° to 120°. For example, the central angle of the arc may range from 90°. For example, the length of the curve of the rounded chamfer included in the specific corner 1011 may be 10 to 60 micrometers. Of course, the specific corner is not limited to the rounded chamfer and may also be a flat chamfer.

[0146] 1 and 2, the first notch 212 is configured to expose a specific corner 1011. For example, the branch passage 320 passes through the specific corner 1011 of the light-emitting region 101 of the first-color subpixel 11 and then connects to the main passage 310. For example, the orthogonal projection of the branch passage 320 on the base substrate 01 overlaps with the orthogonal projection of the specific corner 1011 on the base substrate 01.

[0147] In the embodiments of the present disclosure, exposing a corner from a notch may refer to the notch facing the corner and no interruption being installed between the second electrode and the main passage at the corner.

[0148] In the present disclosure, by setting at least one corner of the light-emitting region of a first-color subpixel as the specific corner, the distance between the specific corner and the light-emitting region of an adjacent subpixel can be increased, and the probability of crosstalk between adjacent subpixels can be reduced. In addition, by placing a first notch at the position of the specific corner, the resistance of the second electrode can be reduced, which is advantageous for reducing the power consumption for display on the display substrate.

[0149] 1 and 2, the corners 1010 of the light-emitting region 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 region 101 of the same first-color subpixel 11 is equal to or less than the number of specific corners 1011 included in the light-emitting region 101.

[0150] 1 and 2, the blocking portion 210 includes a non-closed ring-shaped second blocking portion 213 surrounding at least one second-color subpixel 12, at least two second notches 214 are formed in the second blocking portion 213, and at least one branch passage 320 passes through the second notch 214 and connects to the main passage 310. The second blocking portion refers to a limiting structure exposed from a second opening of the pixel-limiting pattern, and the second notch refers to a limiting structure covered by the pixel-limiting portion. The second blocking portion refers to a portion of the limiting structure surrounding the light-emitting region of the second-color subpixel that is exposed from the second opening.

[0151] For example, as shown in Figures 1 and 2, the blocking portions 210 surrounding each second-color subpixel 12 are all second blocking portions 213, and two second notches 214 are provided in the non-closed ring-shaped second blocking portions 213. One end of a branch passage 320 penetrating the light-emitting region 101 of each second-color subpixel 12 passes through one of the second notches 214 and connects to the first main passage 311, and the other end of the branch passage 320 passes through the other second notch 214 and connects to the second main passage 312. When two second notches are provided in the non-closed ring-shaped second blocking portion, the relative positions of the two second notches can be set so that both ends of the branch passage penetrating the light-emitting region of the second color subpixel pass through two different second notches and are connected to the first main passage and the second main passage, respectively, or both ends of the branch passage penetrating the light-emitting region of the second color subpixel are both connected to the first main passage or both connected to the second main passage.

[0152] For example, the number of second notches 214 arranged around the non-closed ring-shaped second blocking portion 213 of at least one second color subpixel 12 is more than two, and a branch passage 320 passes through each second notch 214 and is connected to the main passage 310, and the number of first main passages 311 connected to the branch passage 320 may be the same as the number of second main passages 312 connected to the branch passage 320, or the two numbers may be different.

[0153] 2, at least one branch passage 320 penetrates at least two second notches 214 to form at least one L-shaped branch passage, including one second notch located on one side of the light-emitting region of the second-color subpixel in the first direction and one second notch located on the other side of the light-emitting region of the second-color subpixel in the second direction.

[0154] For example, the orthogonal projection of the L-shaped branch passage 320 at a corner position on the base substrate overlaps with the orthogonal projection of the light-emitting region 101 of the second-color subpixel 12 on the base substrate. While FIG. 2 exemplarily illustrates one second-color subpixel corresponding to one L-shaped branch passage, this is not limiting. By setting the number and positions of the second notches, a second-color subpixel may correspond to multiple L-shaped branch passages, and the L-shaped branch passages corresponding to the same second-color subpixel may share some of the branch passages or may be spaced apart.

[0155] 1 and 2, at least a portion of the second blocking portion 213 is located between the second-color subpixel 12 and the third-color subpixel 13 adjacent to each other in the third direction, and both the first and second directions intersect with the third direction. For example, the third direction may be the V direction shown in FIG. 4A. The distance between the edges where the second blocking portion 213 and the light-emitting region 101 of the second-color subpixel 12 approach each other is a third distance D3, and the distance between the edges where the second blocking portion 213 and the light-emitting region 101 of the third-color subpixel 13 approach each other is a fourth distance D4, where the third distance D3 is less than the fourth distance D4. The edge of the second blocking portion refers to the edge of the second blocking portion exposed through the second opening of the pixel-limiting pattern.

[0156] For example, only one blocking portion 210, such as the second blocking portion 213, is disposed between adjacent second and third color subpixels 12 and 13, and the second blocking portion 213 is closer to the second color subpixel 12 than the second color subpixel 12, thereby increasing the width of the overlapping position between the main path of the second electrode and the third color subpixel, which is advantageous for reducing the power consumption of the display substrate.

[0157] For example, the ratio of the third distance D3 to the fourth distance D4 may be 0.1 to 0.9. For example, the ratio of the third distance D3 to the fourth distance D4 may be 0.2 to 0.7. For example, the ratio of the third distance D3 to the fourth distance D4 may be 0.3 to 0.8. For example, the ratio of the third distance D3 to the fourth distance D4 may be 0.45 to 0.65. For example, the ratio of the third distance D3 to the fourth distance D4 may be 0.5 to 0.58. For example, the ratio of the third distance D3 to the fourth distance D4 may be 0.55 to 0.6.

[0158] For example, as shown in FIGS. 1 and 2, a first blocking portion 211 and a second notch 214, or a second blocking portion 213 and a first notch 212, are provided between adjacent first and second color subpixels 11 and 12 to block at least one of the light-emitting functional layers and the second electrode of the adjacent first and second color subpixels, while maintaining a wide path between the adjacent first and second color subpixels at the notch position, thereby reducing the resistance of the second electrode and the power consumption for display on the display substrate.

[0159] 1 and 2, each second notch 214 is configured to expose at least one corner 1020 of the light-emitting region 101 of a second-color subpixel 12. For example, each second notch 214 exposes one corner 1020 of the light-emitting region 101 of a second-color subpixel 12, and different second notches 214 corresponding to the same second-color subpixel 12 are configured to expose different corners 1020 of the light-emitting region 101. For example, the two corners 1020 included in two second notches 214 corresponding to the same second-color subpixel 13 may be adjacent corners 1020 or opposite corners 1020.

[0160] For example, as shown in FIGS. 1 and 2, the branch passage 320 that passes through the light-emitting region 101 of the second-color subpixel 12 passes through a corner 1020 of the light-emitting region 101 and connects to the main passage 310 .

[0161] For example, as shown in Figures 1 and 2, the light-emitting region 101 of the first color subpixel 11 includes four sides, each of which is provided with a first blocking portion 211; the light-emitting region 101 of the second color subpixel 12 includes four sides, each of which is provided with a second blocking portion 213; and the light-emitting region 101 of the third color subpixel 13 includes four sides, each of which is provided with a first blocking portion 211 or a second blocking portion 213.

[0162] For example, as shown in FIGS. 1 and 2, the non-closed annular first blocking portion 211 includes a first sub-portion surrounding three sides of the light-emitting region 101 of the first-color subpixel 11 and a second sub-portion corresponding to the fourth side of the light-emitting region 101 of the first-color subpixel 11, and there is a gap between both ends of the second sub-portion and the first sub-portion, which is a first notch 212.

[0163] For example, as shown in FIGS. 1 and 2, the non-closed ring-shaped second blocking portion 213 includes a third sub-portion surrounding three sides of the light-emitting region 101 of the second-color subpixel 12 and a fourth sub-portion corresponding to the fourth side of the light-emitting region 101 of the second-color subpixel 12, and there is a gap between both ends of the fourth sub-portion and the third sub-portion, which is a second notch 214.

[0164] For example, as shown in Figures 1 and 2, the relative positional relationship between the first sub-section and the second sub-section of the first blocking section 211 is the same as the relative positional relationship between the third sub-section and the fourth sub-section of the second blocking section 213.

[0165] For example, as shown in Figures 1 and 2, the light-emitting region 101 of the third color subpixel 13 includes two long sides facing each other and two short sides facing each other, the second sub-portion of the first blocking portion 211 corresponds to the long sides of the light-emitting region 101 of the third color subpixel 13, the fourth sub-portion of the second blocking portion 213 corresponds to the short sides of the light-emitting region 101 of the third color subpixel 13, and the length of the second sub-portion of the first blocking portion 211 is longer than the length of the fourth sub-portion of the second blocking portion 213.

[0166] In a display substrate, if crosstalk between adjacent subpixels is reduced to a very low level, the resistance of the second electrode is likely to be high, and if the resistance of the second electrode is maintained at a low level, the crosstalk between adjacent subpixels is likely to be high. In the display substrate of the present disclosure, by providing a blocking portion between each of two subpixels that are adjacent in any direction and providing at least some of the blocking portions in a non-closed ring structure, crosstalk between adjacent subpixels is reduced while preventing the resistance of the second electrode from being high, which is advantageous for balancing the parameters of crosstalk and power consumption of the display substrate.

[0167] A blocking portion is provided around each sub-pixel to prevent crosstalk between the sub-pixels, and some paths, such as cathode channels, must be reserved between adjacent sub-pixels to reduce crosstalk between the sub-pixels and ensure that the cathode cross voltage is within a predetermined range.

[0168] 1 to 3, for example, the blocking portion 210 includes a portion whose extension direction intersects with both the row direction and the column direction. By setting the extension direction of the blocking portion, the path of the second electrode includes an edge whose extension direction intersects with both the row direction and the column direction, which is advantageous in improving the effect of converging and communicating the paths of the second electrode extending in each direction.

[0169] For example, as shown in FIGS. 1 to 3, the blocking section 210 includes a portion whose extending direction is parallel to at least one of the row direction and the column direction.

[0170] By setting the extending direction of the blocking portion, it is possible to control the extending direction of the passage of the second electrode.

[0171] 7 and 8 are schematic diagrams of partial planar structures of another display substrate according to an embodiment of the present disclosure. FIG. 7 shows the first electrode of a light-emitting element but not the second electrode of the light-emitting element, and FIG. 8 shows the second electrode of a light-emitting element but not the first electrode of the light-emitting element. The display substrates shown in FIGS. 7 and 8 are distinguished from the display substrate shown in FIG. 1 in that the pixel arrangement remains unchanged, but the mesh-like passages of the second electrode are changed by changing the shape and position of the blocking portion. FIG. 8 exemplarily illustrates the path of the passage but not its shape. The second electrode in this display substrate includes passages with non-uniform widths, and the orthogonal projection of the widest point of the passage on the base substrate overlaps with the orthogonal projection of the light-emitting region on the base substrate. The base substrate, insulating layer, limiting structure, pixel limiting portion, first opening, and light-emitting element in this embodiment have the same characteristics as the base substrate, insulating layer, limiting structure, pixel limiting portion, first opening, and light-emitting element shown in FIG. 1, and therefore will not be described again here.

[0172] 8, the plurality of trunk passages 310 may further include a trunk passage 310 passing through the first subpixel group 001. For example, the plurality of trunk passages 310 may further include a trunk passage 310 passing through the light-emitting region 101 of the first color subpixel 11 and the light-emitting region 101 of the second color subpixel 12. For example, the display substrate shown in FIG. 8 has a first direction in the Y direction and a second direction in the X direction. For example, at least one trunk passage 310 may pass through the first subpixel group 001.

[0173] 8 , the trunk passage 310 passes through the first subpixel group 001 and the second subpixel group 002. For example, the trunk passage 310 passes through the light-emitting region 101 of the first color subpixel 11, the light-emitting region 101 of the second color subpixel 12, and the light-emitting region 101 of the third color subpixel 13. For example, one of the first trunk passage 311 and the second trunk passage 312 of the trunk passage 310 passes through the first subpixel group 001 and the second subpixel group 002.

[0174] The main passages and branch passages in the display substrate shown in FIG. 8 have the same definitions as the main passages and branch passages in the display substrate shown in FIG. 2, and therefore will not be described again here.

[0175] The display substrate of the present disclosure has multiple main passages arranged to include a main passage that passes through the first sub-pixel group and the second sub-pixel group, thereby providing more main passages, reducing the resistance of the second electrode and further reducing the power consumption for display of the display substrate.

[0176] 7 and 8 , the blocking portion 210 includes a non-closed annular third blocking portion 215 surrounding at least one third-color subpixel 13, the non-closed annular third blocking portion 215 exposing at least two third notches 216 in the corners 1030 of the light-emitting region 101 of the third-color subpixel 13, and at least one main passage 310 passing through the third notch 216. The third blocking portion refers to a limiting structure exposed through a second opening of the pixel-limiting pattern, and the third notch refers to a limiting structure covered by the pixel-limiting portion. The third blocking portion refers to a portion of the limiting structure surrounding the light-emitting region of the third-color subpixel that is exposed through the second opening.

[0177] For example, as shown in FIGS. 7 and 8, the main passage 310 passes through the corner 1030 of the third color subpixel 13 .

[0178] For example, as shown in Figures 7 and 8, four third notches 216 are provided in the third blocking portion 215 corresponding to the same third color subpixel 13, so that the first main passage 311 passes through two of the third notches 216 that are arranged opposite each other, and the second main passage 312 passes through another two of the third notches 216 that are arranged opposite each other, and the first main passage 311 and the second main passage 312 intersect within the light-emitting region 101 of the third color subpixel 13.

[0179] 7 and 8, the light-emitting region 101 of the third-color subpixel 13 includes four sides, and the non-closed third blocking portion 215 includes alternating fifth and sixth sub-portions, with third notches 216 separating the fifth and sixth sub-portions. The two fifth and two sixth sub-portions correspond to the four sides of the light-emitting region 101. For example, the light-emitting region 101 of the third-color subpixel 13 includes two opposite long sides and two opposite short sides, with the fifth sub-portions corresponding to the long sides and the sixth sub-portions corresponding to the short sides, and the length of the fifth sub-portion is longer than the length of the sixth sub-portion. For example, the length of the fifth sub-portion is equal to or greater than the length of the long sides, and the length of the sixth sub-portion is equal to or greater than the length of the short sides.

[0180] 7 and 8, the third blocking portion 215 is located between the first color subpixel 11 and the third color subpixel 13 adjacent to each other in the third direction, and both the first direction and the second direction intersect with the third direction. For example, the fifth or sixth subportion of the third blocking portion 215 is located between the first color subpixel 11 and the third color subpixel 13.

[0181] In some examples, as shown in Figures 7 and 8, the distance between the edges where the third blocking portion 215 and the light-emitting region 101 of the third color subpixel 13 approach each other is a fifth distance D5, and the distance between the edges where the third blocking portion 215 and the light-emitting region 101 of the first color subpixel 11 approach each other is a sixth distance D6, and the fifth distance D5 is less than the sixth distance D6.

[0182] 7 and 8, the area of ​​the light-emitting region 101 of the first color subpixel 11 is larger than that of the third color subpixel 13, and the width of the overlapping portion between the main passage 310 and the light-emitting region 101 of the first color subpixel 11 is larger than that between the main passage 310 and the light-emitting region 101 of the third color subpixel 13. Only one blocking portion 210, for example, the third blocking portion 215, is disposed between the adjacent first color subpixel 11 and third color subpixel 13, and the third blocking portion 215 is close to the third color subpixel 13, which increases the width of the second electrode at the overlapping portion between the main passage of the second electrode and the first color subpixel, and is advantageous to reducing the power consumption of the display substrate. In addition, the area of ​​the orthogonal projection of the blocking portion on the base substrate within the display substrate is set to be small, for example, the blocking portion is installed only in the position where crosstalk between adjacent sub-pixels is most likely to occur, and the size of each blocking portion is set to be small, which can significantly increase the size of the conductive path of the second electrode and make it applicable to scenes where power consumption requirements are high.

[0183] For example, the ratio of the fifth distance D5 to the sixth distance D6 may be 0.1 to 0.9. For example, the ratio of the fifth distance D5 to the sixth distance D6 may be 0.2 to 0.7. For example, the ratio of the fifth distance D5 to the sixth distance D6 may be 0.3 to 0.8. For example, the ratio of the fifth distance D5 to the sixth distance D6 may be 0.45 to 0.65. For example, the ratio of the fifth distance D5 to the sixth distance D6 may be 0.5 to 0.58. For example, the ratio of the fifth distance D5 to the sixth distance D6 may be 0.55 to 0.6.

[0184] 7 and 8, the third blocking portion 215 is located between the second-color subpixel 12 and the third-color subpixel 13 adjacent to each other in the third direction, and both the first and second directions intersect with the third direction. For example, the fifth or sixth subportion of the third blocking portion 215 is located between the second-color subpixel 12 and the third-color subpixel 13.

[0185] In some examples, as shown in Figures 7 and 8, the distance between the edges where the third blocking portion 215 and the light-emitting region 101 of the third color subpixel 13 approach each other is a fifth distance D5, and the distance between the edges where the third blocking portion 215 and the light-emitting region 101 of the second color subpixel 12 approach each other is a seventh distance D7, and the fifth distance D5 is less than the seventh distance D7.

[0186] 7 and 8, the area of ​​the light-emitting region 101 of the second color subpixel 12 is larger than that of the third color subpixel 13, and the width of the overlapping position between the main passage 310 and the light-emitting region 101 of the second color subpixel 12 is larger than the width of the overlapping position between the main passage 310 and the light-emitting region 101 of the third color subpixel 13. Only one blocking portion 210, for example, the third blocking portion 215, is disposed between the adjacent second color subpixel 12 and third color subpixel 13, and the third blocking portion 215 is close to the third color subpixel 13, which increases the overlapping width between the main passage of the second electrode and the second color subpixel, and is advantageous for reducing the display power consumption of the display substrate.

[0187] For example, the ratio of the fifth distance D5 to the seventh distance D7 may be 0.1 to 0.9. For example, the ratio of the fifth distance D5 to the seventh distance D7 may be 0.2 to 0.7. For example, the ratio of the fifth distance D5 to the seventh distance D7 may be 0.3 to 0.8. For example, the ratio of the fifth distance D5 to the seventh distance D7 may be 0.45 to 0.65. For example, the ratio of the fifth distance D5 to the seventh distance D7 may be 0.5 to 0.58. For example, the ratio of the fifth distance D5 to the seventh distance D7 may be 0.55 to 0.6.

[0188] In the display substrate, crosstalk between subpixels mainly occurs along the perpendicular sides of adjacent subpixels, and the degree of crosstalk is low because the crosstalk path between adjacent corners of adjacent subpixels is long. Therefore, when no blocking portion is provided between adjacent corners of adjacent subpixels (for example, between a corner of a first color subpixel and a corner of a third color subpixel, or between a corner of a second color subpixel and a corner of a third color subpixel), the risk of crosstalk between subpixels remains low, and the conductive path of the second electrode can be increased, thereby reducing resistance.

[0189] In some examples, as shown in Figures 7 and 8, the blocking portion 210 further includes a fourth blocking portion 217, which is located between adjacent first color subpixels 11 and second color subpixels 12 arranged along the second direction or the first direction, thereby reducing the probability of crosstalk between the first color subpixels and the second color subpixels.

[0190] 7 and 8, a gap is provided between the fourth blocking portion 217 and the third blocking portion 215. For example, two third blocking portions 215, for example, two fifth sub-portions or two sixth sub-portions, are provided on each side of the fourth blocking portion 217. The present disclosure is not limited thereto, and the fourth blocking portion may be provided integrally with the third blocking portion.

[0191] 7 and 8, a corner 1010 of the light-emitting region 101 of the first color subpixel 11 faces a corner 1020 of the light-emitting region 101 of the second color subpixel 12, and the fourth blocking portion 217 is located between the corner 1010 of the first color subpixel 11 and the corner 1020 of the second color subpixel 12. The distance between the adjacent corners of the first and second color subpixels is small, and the fourth blocking portion is located between these two corners, with the fourth blocking portion and the third blocking portion being spaced apart. This reduces the possibility of crosstalk between the first and second color subpixels and prevents an excessive increase in the resistance of the second electrode.

[0192] 7 and 8, the fourth blocking portion 217 may be provided only between adjacent first color subpixels 11 and second color subpixels 12 arranged in the first direction, so that the main passage 310 passes through the first color subpixels 11 and second color subpixels 12 arranged in the second direction. Of course, the present disclosure is not limited thereto, and the fourth blocking portion 217 may be provided only between adjacent first color subpixels and second color subpixels arranged in the second direction, so that the main passage passes through the first color subpixels and second color subpixels arranged in the first direction.

[0193] 7 and 8, the branch passage 320 may penetrate through the light-emitting region 101 of the first color subpixel 11 and may penetrate through the light-emitting region 101 of the second color subpixel 12. For example, both ends of the branch passage 320 are connected to two main passages 310 extending in the same direction, for example, both ends of the branch passage 320 are connected to two first main passages 311, or both ends of the branch passage 320 are connected to two second main passages 312.

[0194] Although FIG. 8 illustrates only branch passages extending in the Y direction as an example, this is not limiting, and the second electrode may further include a branch passage passing between the third and fourth blocking portions.

[0195] 7 and 8 , the distance between the edges where a fourth blocking portion 217 located between a first color subpixel 11 and a second color subpixel 12 and the light-emitting region 101 of the first color subpixel 11 approach each other is different from the distance between the edges where the fourth blocking portion 217 and the light-emitting region 101 of the second color subpixel 12 approach each other. For example, multiple fourth blocking portions 217 arranged in the Y direction are all close to the light-emitting regions 101 of the subpixels located on the same side. For example, odd-numbered fourth blocking portions 217 are close to the light-emitting region 101 of the first color subpixel 11, and even-numbered fourth blocking portions 217 are close to the light-emitting region 101 of the second color subpixel 12.

[0196] The present disclosure is not limited to providing only one fourth blocking portion between adjacent first and second color subpixels, and two or more fourth blocking portions may be provided.

[0197] 9 and 10 are schematic diagrams of partial planar structures of another display substrate according to an embodiment of the present disclosure. FIG. 9 shows the first electrode of a light-emitting element but not the second electrode of the light-emitting element, and FIG. 10 shows the second electrode of a light-emitting element but not the first electrode of the light-emitting element. The display substrate shown in FIGS. 9 and 10 is distinguished from the display substrate shown in FIG. 1 in that the pixel arrangement remains unchanged, but the mesh-like passages of the second electrode are changed by changing the shape and position of the blocking portion. FIG. 10 exemplarily illustrates the path of the passage but does not illustrate the shape of the passage. The second electrode in this display substrate includes passages of non-uniform width, and the orthogonal projection of the widest position of the passage on the base substrate overlaps with the orthogonal projection of the light-emitting area on the base substrate. The main passages in the display substrate shown in FIG. 9 have the same definition as the main passages in the display substrate shown in FIG. 2, and therefore will not be described again here. The base substrate, insulating layer, limiting structure, pixel limiting portion, first opening, and light-emitting element in this embodiment have the same characteristics as the base substrate, insulating layer, limiting structure, pixel limiting portion, first opening, and light-emitting element shown in FIG. 1, and therefore will not be described again here.

[0198] 9 and 10 , the blocking portion 210 includes a non-closed annular first blocking portion 211 surrounding the light-emitting region 101 of at least one first-color subpixel 11, the non-closed annular first blocking portion 211 having at least two first notches 212 exposing at least two sides 1113 of the light-emitting region 101 of the first-color subpixel 11, and the main passage 310 passes through the two first notches 212. For example, one side 1113 of the light-emitting region 101 of the first-color subpixel 11 is disposed opposite one first notch 212. The first blocking portion refers to a portion of the limiting structure surrounding the light-emitting region of the first-color subpixel that is exposed to the second opening.

[0199] 9 and 10 , the plurality of trunk passages 310 includes a trunk passage 310 that passes through the light-emitting region 101 of the third color subpixel 13, and a trunk passage 310 that passes through the light-emitting region 101 of the first color subpixel 11 and the light-emitting region 101 of the second color subpixel 12. For example, the plurality of trunk passages 310 includes a first trunk passage 311 and a second trunk passage 312 that pass through the light-emitting region 101 of the third color subpixel 13, the extension direction of the first trunk passage 311 intersects with the extension direction of the second trunk passage 312, and the first trunk passage 311 and the second trunk passage 312 intersect at the light-emitting region 101 of the third color subpixel 13.

[0200] 9 and 10 , the plurality of trunk passages 310 further includes a third trunk passage 313 that penetrates the light-emitting region 101 of the first color subpixel 11. For example, the third trunk passage 313 further penetrates the light-emitting region 101 of the third color subpixel 13.

[0201] For example, as shown in Figures 9 and 10, the number of third main passages 313 penetrating the light-emitting region 101 of the first color subpixel 11 can be adjusted by setting the number of first notches 212 installed in the first blocking portion 211 corresponding to the same first color subpixel 11. For example, the same first-color subpixel 11 corresponds to five first notches 212, two of which are arranged opposite each other in a third direction, e.g., the V direction, and two of which are arranged opposite each other in a fourth direction, e.g., the W direction, and the fifth first notch 212 avoids the connecting electrode 112 of the first electrode 110 of the first-color subpixel 11. For example, the fifth first notch 212 exposes one corner 1010 of the light-emitting region 101 of the first-color subpixel 11. The same first-color subpixel 11 is penetrated by the third trunk passage 313 extending in the third direction and the third trunk passage 313 extending in the fourth direction. For example, there is no first blocking portion 211 between the first-color subpixel 11 and the third-color subpixel 13, so that the third trunk passage can sequentially penetrate the light-emitting region of the first-color subpixel, the first notches, and the light-emitting region of the third-color subpixel.

[0202] For example, as shown in Figures 9 and 10, at least one corner 1010 of the light-emitting region 101 of the first color subpixel 11 is surrounded by a first blocking portion 211, and the first blocking portion 211 is located between the adjacent first color subpixel 11 and second color subpixel 12, thereby reducing the probability of crosstalk occurring between the first color subpixel and the second color subpixel.

[0203] For example, as shown in FIGS. 9 and 10 , the distance between the first blocking portion 211 located between the first color subpixel 11 and the second color subpixel 12 and the edge where the light-emitting region 101 of the first color subpixel 11 approaches each other is a first sub-distance, and the distance between the first blocking portion 211 and the edge where the light-emitting region 101 of the second color subpixel 12 approaches each other is a second sub-distance, and the first sub-distance is less than the second sub-distance, i.e., the first blocking portion 211 is closer to the light-emitting region 101 of the first color subpixel 11.

[0204] 9 and 10 , the first blocking portion 211 includes a plurality of spaced-apart sub-portions, and a first notch 212 is disposed between adjacent sub-portions. For example, the size of the first notch 212 is less than the length of the side 1113 of the light-emitting region 101 of the first-color subpixel 11.

[0205] 9 and 10 , the blocking portion 210 includes a non-closed ring-shaped second blocking portion 213 surrounding at least one second-color subpixel 12, in which at least two second notches 214 are formed in the non-closed ring-shaped second blocking portion 212, exposing at least two sides 1123 of the light-emitting region 101 of the second-color subpixel 11, and the first blocking portion 211 is disposed opposite the second blocking portion 213. The second blocking portion refers to a portion of the limiting structure surrounding the light-emitting region of the second-color subpixel that is exposed to the second opening.

[0206] For example, as shown in Figures 9 and 10, the second blocking portion 213 is located between the first color subpixel 11 and the second color subpixel 12, and for example, the first blocking portion 211 and the second blocking portion 213 are installed between the first color subpixel 11 and the second color subpixel 12.

[0207] 9 and 10 , the plurality of trunk passages 310 further includes a fourth trunk passage 314 that penetrates the light-emitting region 101 of the second-color subpixel 12. For example, the fourth trunk passage 314 further penetrates the light-emitting region 101 of the third-color subpixel 13.

[0208] For example, as shown in Figures 9 and 10, the number of second notches 214 installed in the second blocking portion 213 corresponding to the same second color subpixel 12 can be adjusted to adjust the number of fourth main passages 314 penetrating the light-emitting region 101 of the second color subpixel 12. For example, the same second-color subpixel 12 corresponds to five second notches 214, two of which are arranged opposite each other in a third direction, e.g., the V direction, and two of which are arranged opposite each other in a fourth direction, e.g., the W direction, and the fifth second notch 214 avoids the connecting electrode 112 of the first electrode 110 of the second-color subpixel 12. For example, the fifth second notch 214 exposes one corner 1020 of the light-emitting region 101 of the second-color subpixel 12. The same second-color subpixel 12 is penetrated by the fourth trunk passage 314 extending in the third direction and the fourth trunk passage 314 extending in the fourth direction. For example, there is no second blocking portion 213 between the second-color subpixel 12 and the third-color subpixel 13, so that the fourth trunk passage can sequentially penetrate the light-emitting region of the second-color subpixel, the second notches, and the light-emitting region of the third-color subpixel.

[0209] For example, as shown in FIGS. 9 and 10, the first main passage 311 passes through the gap between the first blocking portion 211 and the second blocking portion 213 and the light-emitting region 101 of the third color sub-pixel 13.

[0210] 9 and 10, at least one corner 1020 of the light-emitting region 101 of the second-color subpixel 12 is surrounded by a second blocking portion 213, and the second blocking portion 213 is located between the adjacent first-color subpixel 11 and second-color subpixel 12, thereby reducing the possibility of crosstalk between the first-color subpixel and the second-color subpixel. By providing two blocking portions between the first-color subpixel and the second-color subpixel, it is possible to prevent the film layer between the first-color subpixel and the second-color subpixel from being cut without being cut.

[0211] For example, as shown in FIGS. 9 and 10 , the distance between the second blocking portion 213 located between the first color subpixel 11 and the second color subpixel 12 and the edge where the light-emitting region 101 of the first color subpixel 11 approaches each other is the third sub-distance, and the distance between the second blocking portion 213 and the edge where the light-emitting region 101 of the second color subpixel 12 approaches each other is the fourth sub-distance, where the third sub-distance is longer than the fourth sub-distance, i.e., the second blocking portion 213 is closer to the light-emitting region 101 of the second color subpixel 12.

[0212] 9 and 10 , the second blocking portion 213 includes a plurality of spaced-apart sub-portions, and a second notch 214 is disposed between adjacent sub-portions. For example, the size of the second notch 214 is less than the length of the side 1123 of the light-emitting region 101 of the second-color subpixel 12.

[0213] 10 does not show branch passages, for example, the second electrode of the display substrate may include a branch passage passing through the connecting electrode of the first electrode of the first color subpixel, with one end of the branch passage connected to the second trunk passage 312 and the other end of the branch passage connected to the third trunk passage 313. For example, the second electrode of the display substrate may further include a branch passage passing through the connecting electrode of the first electrode of the second color subpixel, with one end of the branch passage connected to the second trunk passage 312 and the other end of the branch passage connected to the fourth trunk passage 314.

[0214] The embodiments of the present disclosure are not limited thereto. When a first blocking portion and a second blocking portion are disposed between a first color subpixel and a second color subpixel, at least one of the first blocking portion and the second blocking portion may have a small notch, which faces only the side of the light-emitting area of ​​the subpixel and does not face the corner of the light-emitting area of ​​the subpixel.

[0215] Crosstalk is likely to occur between the first and second color subpixels, for example, between the opposing corners of the first and second color subpixels, while the probability of crosstalk occurring in other positions is low. Therefore, the display substrate of the present disclosure has at least two blocking sections between the opposing corners of the first and second color subpixels, and does not have any blocking sections at positions where the edges of the first and second color subpixels correspond, thereby reducing the probability of crosstalk occurring and minimizing the increase in the resistance of the second electrode, thereby balancing the crosstalk and power consumption of the second electrode path.

[0216] 11 and 12 are schematic diagrams of partial planar structures of another display substrate according to an embodiment of the present disclosure. FIG. 11 shows the first electrode of a light-emitting element but not the second electrode of the light-emitting element, and FIG. 12 shows the second electrode of a light-emitting element but not the first electrode of the light-emitting element. The display substrates shown in FIGS. 11 and 12 are distinguished from the display substrate shown in FIG. 1 in that the pixel arrangement remains unchanged, but the mesh-like passages of the second electrode are changed by changing the shape and position of the blocking portion. FIG. 12 exemplarily illustrates the path of the passage but not its shape. The second electrode in this display substrate includes passages with non-uniform widths, and the orthogonal projection of the widest point of the passage on the base substrate overlaps with the orthogonal projection of the light-emitting region on the base substrate. The base substrate, insulating layer, limiting structure, pixel limiting portion, first opening, and light-emitting element in this embodiment have the same characteristics as the base substrate, insulating layer, limiting structure, pixel limiting portion, first opening, and light-emitting element shown in FIG. 1, and therefore will not be described again here.

[0217] 11 and 12 , the blocking portion 210 includes a non-closed annular first blocking portion 211 surrounding at least one first-color subpixel 11, and the non-closed annular first blocking portion 211 has at least two first notches 212 that expose corners 1010 of the light-emitting region 101 of the first-color subpixel 11, the at least two first notches 212 including two first notches 212 facing each other in a first direction, and the main passage 310 passes through the two first notches 212. The first blocking portion refers to a limiting structure that exposes a second opening of the pixel-limiting pattern, and the first notch refers to a limiting structure covered by the pixel-limiting portion. The first blocking portion refers to a portion of the limiting structure surrounding the light-emitting region of the first-color subpixel that is exposed to the second opening.

[0218] 11 and 12, the blocking portions 210 surrounding each first-color subpixel 11 are first blocking portions 211. For example, the first blocking portions 211 are located between adjacent first-color subpixels 11 and second-color subpixels 12 arranged in the second direction. For example, the first blocking portions 211 include at least one corner 1010 and at least one side of the light-emitting region 101 of the first-color subpixel 11.

[0219] 11 and 12 , the main passage 310 passes through the light-emitting region 101 of the third color subpixel 13 and the light-emitting region 101 of the first color subpixel 11. For example, the main passage 310 includes a first main passage 311 and a second main passage 312 whose extending directions intersect, and the first main passage 311 and the second main passage 312 intersect with the light-emitting region 101 of the third color subpixel 13.

[0220] In the display substrate according to the embodiment of the present disclosure, the trunk path not only passes through the third color sub-pixel but also passes through the first color sub-pixel, which can further reduce the resistance of the second electrode and reduce power consumption.

[0221] 11 and 12 , at least a portion of the first blocking portion 210 is located between the first-color subpixel 11 and the third-color subpixel 13 adjacent to each other in the third direction, and both the first and second directions intersect with the third direction. For example, the third direction may be the V direction shown in FIG. 4A . The distance between the edges where the first blocking portion 210 and the light-emitting region 101 of the first-color subpixel 11 approach each other is a first distance D1, and the distance between the edges where the first blocking portion 210 and the light-emitting region 101 of the third-color subpixel 13 approach each other is a second distance D2, where the first distance D1 is less than the second distance D2. The edge of the first blocking portion refers to the edge of the first blocking portion exposed through the second opening of the pixel-limiting pattern.

[0222] For example, only one blocking portion 210, such as the first blocking portion 211, is disposed between the adjacent first color subpixel 11 and third color subpixel 13, and the first blocking portion 211 is close to the first color subpixel 11, which is advantageous in increasing the width of the overlapping position between the main path of the second electrode and the third color subpixel, and further reduces the power consumption for display on the display substrate.

[0223] For example, the ratio of the first distance D1 to the second distance D2 may be 0.1 to 0.9. For example, the ratio of the first distance D1 to the second distance D2 may be 0.2 to 0.7. For example, the ratio of the first distance D1 to the second distance D2 may be 0.3 to 0.8. For example, the ratio of the first distance D1 to the second distance D2 may be 0.45 to 0.65. For example, the ratio of the first distance D1 to the second distance D2 may be 0.5 to 0.58. For example, the ratio of the first distance D1 to the second distance D2 may be 0.55 to 0.6.

[0224] 11 and 12, the first notch 212 is configured to expose at least one corner 1010 of the light-emitting region 101 of the first-color subpixel 11. For example, different first notches 212 corresponding to the same first-color subpixel 11 are configured to expose different corners 1010 of the light-emitting region 101.

[0225] For example, as shown in FIGS. 11 and 12, the first notch 212 exposes the connection electrode 111 of the first electrode 110.

[0226] 11 and 12 , the blocking portion 210 includes a non-closed annular second blocking portion 213 surrounding at least one second-color subpixel 12, and the non-closed annular second blocking portion 213 has at least two second notches 214 that expose corners 1020 of the light-emitting region 101 of the second-color subpixel 12. The at least two second notches 214 may include two second notches 214 arranged opposite each other in a first direction, for example, and the second notch 214 and the first notch 212 may be arranged opposite each other in the first direction, for example, such that the main passage 310 passes through the first notch 212 and the second notch 214. For example, the main passage 310 passes through the light-emitting region 101 of the first-color subpixel 11, the first notch 212, the second notch 214, and the light-emitting region 101 of the second-color subpixel 12, in that order. The second blocking portion refers to a portion of the limiting structure surrounding the light-emitting region of the second color sub-pixel that is exposed through the second opening.

[0227] For example, as shown in Figures 11 and 12, a first blocking portion 211 and a second blocking portion 213 are provided between adjacent first color subpixels 11 and second color subpixels 12 arranged in the second direction, and no blocking portion 210 is provided between adjacent first color subpixels 11 and second color subpixels 12 arranged in the first direction, which is advantageous for reducing crosstalk between the first color subpixels and the second color subpixels in the second direction and providing a charge path for the second electrode in the first direction, thereby balancing crosstalk and power consumption.

[0228] 11 and 12 , the main passage 310 passes through the gap between the first and second blocking portions 211 and 213 adjacent to each other in the second direction and the gap between the first and second blocking portions 211 and 213 adjacent to each other in the first direction. For example, the main passage 310 passing through the gap between the first and second blocking portions 211 and 213 adjacent to each other passes through the light-emitting region 101 of the third-color subpixel 13.

[0229] 11 and 12 , at least a portion of the second blocking portion 213 is located between the second-color subpixel 12 and the third-color subpixel 13 adjacent to each other in the third direction, and both the first and second directions intersect with the third direction. For example, the third direction may be the V direction shown in FIG. 4A . The distance between the edges where the second blocking portion 213 and the light-emitting region 101 of the second-color subpixel 12 approach each other is a third distance D3, and the distance between the edges where the second blocking portion 213 and the light-emitting region 101 of the third-color subpixel 13 approach each other is a fourth distance D4, where the third distance D3 is less than the fourth distance D4. The edge of the second blocking portion refers to the edge of the second blocking portion exposed through the second opening of the pixel-limiting pattern.

[0230] For example, only one blocking portion 210, such as the second blocking portion 213, may be disposed between adjacent second and third color subpixels 12 and 13, and the second blocking portion 213 may be located closer to the second color subpixel 12, thereby increasing the width of the overlapping portion between the main path of the second electrode and the third color subpixel, which is advantageous for reducing the power consumption of the display substrate.

[0231] For example, the ratio of the third distance D3 to the fourth distance D4 may be 0.1 to 0.9. For example, the ratio of the third distance D3 to the fourth distance D4 may be 0.2 to 0.7. For example, the ratio of the third distance D3 to the fourth distance D4 may be 0.3 to 0.8. For example, the ratio of the third distance D3 to the fourth distance D4 may be 0.45 to 0.65. For example, the ratio of the third distance D3 to the fourth distance D4 may be 0.5 to 0.58. For example, the ratio of the third distance D3 to the fourth distance D4 may be 0.55 to 0.6.

[0232] In some examples, as shown in Figures 11 and 12, the distance between adjacent first blocking portions 211 and second blocking portions 213 in the first direction is greater than or equal to the size of first notch 212 in the second direction and the size of second notch 214 in the second direction.

[0233] By adjusting the distance between the first and second blocking portions that are installed adjacent to each other in the first direction, the width of the passage of the second electrode between them can be increased as much as possible, which prevents the resistance of the second electrode from becoming high and is advantageous for further reducing power consumption.

[0234] 13A and 13B are schematic diagrams of a partial planar structure of another display substrate according to an embodiment of the present disclosure. FIG. 13A shows the first electrode of a light-emitting element but not the second electrode of the light-emitting element, and FIG. 13B shows the second electrode of a light-emitting element but not the first electrode of the light-emitting element. The display substrate shown in FIGS. 13A and 13B is distinguished from the display substrate shown in FIG. 1 in that the pixel arrangement remains unchanged, but the mesh-like passages of the second electrode are changed by changing the shape and position of the blocking portion. FIG. 13B shows the path of the passage but not its shape. The second electrode in this display substrate includes passages of non-uniform width, and the orthogonal projection of the widest point of the passage on the base substrate overlaps with the orthogonal projection of the light-emitting region on the base substrate. The base substrate, insulating layer, limiting structure, pixel limiting portion, first opening, and light-emitting element in this embodiment have the same characteristics as the base substrate, insulating layer, limiting structure, pixel limiting portion, first opening, and light-emitting element shown in FIG. 1, and therefore will not be described again here.

[0235] 13A and 13B , the blocking portion 210 includes a non-closed annular third blocking portion 215 surrounding at least one third-color subpixel 13, the non-closed annular third blocking portion 215 has at least two third notches 216 that expose corners 1030 of the light-emitting regions 101 of the third-color subpixels 13, the at least two third notches 216 include two oppositely disposed third notches 216, and the main passage 310 passes through the two oppositely disposed third notches 216, the gap between the third blocking portions 215 adjacent to each other in the first direction, and the gap between the third blocking portions 215 adjacent to each other in the second direction. The third blocking portion refers to a portion of the limiting structure surrounding the light-emitting region of the third-color subpixel that is exposed to the second opening.

[0236] For example, as shown in FIGS. 13A and 13B, the main passage 310 passes through the light-emitting areas 101 of the alternating third notches 216 and the third-color subpixels 13.

[0237] 13A and 13B , the trunk passage 310 includes a first trunk passage 311 and a second trunk passage 312 whose extending directions intersect, and one of the first trunk passage 311 and the second trunk passage 312 passes through the third notch 216 and the light-emitting region 101 of the third-color subpixel 13, while the other of the first trunk passage 311 and the second trunk passage 312 passes through the space between adjacent third blocking portions 215 and the first-color subpixel 11 and the second-color subpixel 12. For example, some of the first trunk passages 311 pass through the space between adjacent third blocking portions 215 and the first-color subpixel 11 and the second-color subpixel 12.

[0238] 13A and 13B , the maximum size in the first direction of the spacing between adjacent third blocking portions 215 in the first direction is equal to or less than the maximum size in the first direction of the third notches 216. By positioning the third notches larger than the spacing between the third blocking portions, the width of the path of the second electrode passing through the third color subpixel can be increased as much as possible, and the width of the path of the second electrode passing through the first color subpixel and the second color subpixel can be reduced as much as possible, thereby reducing crosstalk between adjacent first color subpixels and second color subpixels as much as possible, while minimizing the increase in resistance of the second electrode, and achieving a balance between crosstalk and power consumption.

[0239] 13A and 13B , the blocking portion 210 further includes a first blocking portion 211 having a non-closed ring shape surrounding the first color subpixel 11 and a second blocking portion 213 having a non-closed ring shape surrounding the second color subpixel 12. For example, a first notch 212 is formed in the first blocking portion 211, and a second notch 214 is formed in the second blocking portion 213. For example, the second opening 420 of the pixel-limiting pattern for exposing the third blocking portion 215 also exposes the first blocking portion 211 and the second blocking portion 213.

[0240] 13A and 13B , the main passage 310 passes through the first notch 212, the light-emitting region 101 of the first-color subpixel 11, the second notch 214, and the light-emitting region 101 of the second-color subpixel 12 in that order. For example, the first main passage 311 passes through the first notch 212, the light-emitting region 101 of the first-color subpixel 11, the second notch 214, and the light-emitting region 101 of the second-color subpixel 12 in that order. For example, the second main passage 312 passes through the first notch 212, the light-emitting region 101 of the first-color subpixel 11, the second notch 214, and the light-emitting region 101 of the second-color subpixel 12 in that order.

[0241] For example, as shown in FIG. 13A , one second opening 420 of the pixel limiting pattern 400 includes a first blocking portion surrounding the first color subpixel 11, a second blocking portion surrounding the second color subpixel 12, and a third blocking portion surrounding the third color subpixel 13, and the second opening 420 exposes three types of blocking portions, for example.

[0242] FIG. 14A is a schematic diagram of a partial planar structure of another display substrate according to an embodiment of the present disclosure. FIG. 14B is a partial enlarged view of the display substrate shown in FIG. 14A. The passage of the second electrode in the display substrate shown in FIG. 14A may be the same as the passage in FIG. 13B, and will not be described again here. The only difference between the display substrate shown in FIG. 13A and the display substrate shown in FIG. 14A is whether the limiting structure 200 surrounding the third-color subpixel 13 is exposed through the second opening 420 of the pixel limiting pattern 400. For example, in the display substrate shown in FIG. 14A, the second opening 420 may expose two types of blocking portions or only one type of blocking portion.

[0243] For example, as shown in Figures 14A and 14B, the light-emitting region of the first-color subpixel 11 includes multiple corners, the blocking portion 210 includes a non-closed annular first blocking portion 211 surrounding at least one first-color subpixel 11, the non-closed annular first blocking portion 211 is provided with at least two first notches 212 exposing at least two corners of the multiple corners, and the at least two first notches 212 include two first notches 212 of different sizes.

[0244] 14A and 14B, the light-emitting region 101 of the first-color subpixel 11 includes four corners, and the four corners include two first corners 1021 facing each other in a first direction and two second corners 1022 facing each other in a second direction. The blocking portion 210 includes a non-closed annular first blocking portion 211 surrounding at least one first-color subpixel 11, and four first notches 212 exposing the four corners are provided in the non-closed annular first blocking portion 211, and at least two of the four first notches 212 have different sizes.

[0245] For example, as shown in FIGS. 14A and 14B, the size of the first notch 212 corresponding to the connection electrode of the first electrode is large.

[0246] 14A and 14B, 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 connection 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. Setting the size of the first notch exposing the second corner to be small is advantageous in reducing crosstalk between the first-color subpixels and second-color subpixels arranged in the second direction.

[0247] For example, as shown in Figures 14A and 14B, the light-emitting region 101 of the second-color subpixel 12 includes multiple corners, the blocking portion 210 includes a non-closed ring-shaped second blocking portion 213 surrounding at least one second-color subpixel 12, the non-closed ring-shaped second blocking portion 213 is provided with at least two second notches 214 exposing at least two corners of the multiple corners, and the at least two second notches 214 include two second notches 214 of different sizes.

[0248] For example, as shown in Figures 14A and 14B, the light-emitting region 101 of the second-color subpixel 12 includes four corners, and the four corners include two third corners 1023 arranged opposite each other in the first direction and two fourth corners 1024 arranged opposite each other in the second direction. The blocking portion 210 includes a non-closed ring-shaped second blocking portion 213 that surrounds at least one second-color subpixel 12. Four second notches 214 that expose the four corners are provided in the non-closed ring-shaped second blocking portion 213, and at least two of the four second notches 214 have different sizes.

[0249] For example, as shown in FIGS. 14A and 14B, 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.

[0250] For example, as shown in FIGS. 14A and 14B, the size of the second notch 214 corresponding to the connection electrode of the first electrode is large.

[0251] For example, the second notch 214 exposing the third corner 1023 corresponds to the connection 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. Setting the size of the second notch exposing the fourth corner to be small is advantageous in reducing crosstalk between the first-color subpixels and second-color subpixels arranged in the second direction.

[0252] 15 and 16 are schematic diagrams of a partial planar structure of another display substrate according to an embodiment of the present disclosure. FIG. 15 shows the first electrode of a light-emitting element but not the second electrode of the light-emitting element, and FIG. 16 shows the second electrode of a light-emitting element but not the first electrode of the light-emitting element. The display substrates shown in FIGS. 15 and 16 are distinguished from the display substrate shown in FIG. 1 by the different pixel arrangements and the different shapes and positions of the blocking portions. FIG. 16 also shows the path of the passage but not its shape. The second electrode in this display substrate includes passages of non-uniform width, and the orthogonal projection of the widest point of the passage on the base substrate overlaps with the orthogonal projection of the light-emitting region on the base substrate. The base substrate, insulating layer, and light-emitting element in this embodiment have the same characteristics as the base substrate, insulating layer, and light-emitting element shown in FIG. 1, and therefore will not be described again here.

[0253] 15 and 16 , the subpixel 10 includes a first color subpixel 11, a second color subpixel 12, and a third color subpixel 13. For example, the first color subpixel 11 may be a blue subpixel that emits blue light, the second color subpixel 12 may be a red subpixel that emits red light, and the third color subpixel 13 may be a green subpixel that emits green light. For example, the light-emitting regions 101 of the first color subpixel 11 and the second color subpixel 12 are all hexagonal, and the light-emitting region 101 of the third color subpixel 13 is rectangular. For example, the first color subpixels 11, the second color subpixels 12, and the third color subpixels 13 are arranged in a cyclical manner in one direction to form a subpixel group, for example, in the Y direction to form a subpixel group, and multiple pixel groups are arranged in another direction, for example, the X direction, and are distributed with a shift in the one direction, for example, the Y direction. For example, the sub-pixels 10 may be arranged as a Delta pixel arrangement.

[0254] For example, there may be a gap between the limiting structures 200 surrounding different subpixels 10. For example, the limiting structures 200 surrounding each subpixel 10 may be a closed ring structure. For example, the limiting structures 200 surrounding each subpixel 10 may surround the first electrode 110 and cover one peripheral edge of the first electrode 110.

[0255] 15 and 16, the portion of the definition structure 200 surrounding each subpixel 10 exposed to the second opening 402 of the pixel definition pattern includes a blocking portion 210. The definition structure in this embodiment may have the same stacked structure characteristics as the definition structure in the display substrate in the above example, and will not be described again here.

[0256] 15 and 16, the plurality of passages 300 includes a plurality of main passages 310 and a plurality of branch passages 320. The main passages and branch passages in the display substrate shown in FIG. 16 have the same definitions as the main passages and branch passages in the display substrate shown in FIG. 2, and therefore will not be described again here.

[0257] 15 and 16, the extension direction of the multiple main passages 310 is the same. For example, both ends of the branch passage 320 may be connected to the main passage 310 extending in the X direction.

[0258] 15 and 16, the main path 310 passes through the light-emitting region 101 of the first color subpixel 11. For example, one branch path 320 may pass through at least one of the light-emitting region 101 of the first color subpixel 11, the light-emitting region 101 of the second color subpixel 12, and the light-emitting region 101 of the third color subpixel 13.

[0259] 15 and 16 , the limiting structure 200 corresponding to one side of the light-emitting region 101 of the first color subpixel 11 is exposed through the second opening 420 to form a blocking portion 210, and the limiting structure 200 corresponding to the other side of the light-emitting region 101 is covered by the pixel limiting portion 401, for example, the blocking portion 210 is located between the first color subpixel 11 and the second color subpixel 12 in the same subpixel group. By providing a blocking portion between the first color subpixel and the second color subpixel, the probability of crosstalk occurring between the first color subpixel and the second color subpixel can be reduced.

[0260] For example, the main passage 310 of the second electrode 120 passes through the other side of the light-emitting area 101 of the first-color subpixel 11 .

[0261] 15 and 16 , the limiting structures 200 disposed corresponding to three sides of the light-emitting region 101 of the second color subpixel 12 are exposed through the second opening 420 to form blocking portions 210, and the limiting structures 200 corresponding to the other sides of the light-emitting region 101 are covered by the pixel limiting portions 401. For example, the blocking portions 210 are located between the second color subpixel 12 and the third color subpixel 13 in the same subpixel group, and between the first color subpixel 11 and the second color subpixel 12 in an adjacent subpixel group. By providing blocking portions between the third color subpixel and the second color subpixel in the same subpixel group and between the first color subpixel and the second color subpixel in an adjacent subpixel group, the probability of crosstalk occurring between the third color subpixel and the second color subpixel in the same subpixel group and the first color subpixel and the second color subpixel in an adjacent subpixel group can be reduced.

[0262] For example, the branch passage 320 of the second electrode 120 penetrates the other side of the light-emitting region 101 of the second-color subpixel 12 and the space between adjacent first-color subpixels 11 and second-color subpixels 12 in the same group.

[0263] 15 and 16 , the limiting structures 200 disposed corresponding to each side of the light-emitting region 101 of the third color subpixel 13 are all exposed to the second opening 420 to form blocking portions 210, and at least two sides are partially covered by the pixel limiting portion 401, so that the blocking portions 210 form a non-closed ring. For example, the blocking portions 210 are located between the first color subpixel 11 and the third color subpixel 13 of the same subpixel group, and also between the third color subpixel 13 and the second color subpixel 12 of adjacent subpixel groups, and between the third color subpixel 13 and the first color subpixel 11 of adjacent subpixel groups. By providing a blocking portion between the third color subpixel and the first color subpixel of the same subpixel group, and between the first color subpixel and the second color subpixel of adjacent subpixel groups, and between the third color subpixel and the first color subpixel of adjacent subpixel groups, it is possible to reduce the probability of crosstalk occurring between adjacent subpixels in the same subpixel group and the probability of crosstalk occurring between adjacent subpixels in adjacent subpixel groups.

[0264] For example, the branch passage 320 of the second electrode 120 passes through a notch formed in the non-closed annular blocking portion 210 of the light-emitting region 101 of the third color subpixel 13 .

[0265] In the display substrate according to this embodiment, by providing the fewest number of blocking portions, an effective blocking effect is achieved to reduce crosstalk, and the resistance of the second electrode does not increase significantly.

[0266] 17 and 18 are schematic diagrams of partial planar structures of another display substrate according to an embodiment of the present disclosure. FIG. 17 shows the first electrode of a light-emitting element but not the second electrode of the light-emitting element, and FIG. 18 shows the second electrode of a light-emitting element but not the first electrode of the light-emitting element. The display substrates shown in FIGS. 15 to 18 are distinguished from the display substrate shown in FIG. 1 by the different pixel arrangements and the different shapes and positions of the blocking portions. FIG. 18 exemplarily illustrates the path of the passage but does not illustrate the shape of the passage. The second electrode in this display substrate includes passages of non-uniform width, and the orthogonal projection of the widest point of the passage on the base substrate overlaps with the orthogonal projection of the light-emitting region on the base substrate. The base substrate, insulating layer, and light-emitting element in this embodiment have the same characteristics as the base substrate, insulating layer, and light-emitting element shown in FIG. 1, and therefore will not be described again here.

[0267] 17 and 18, the subpixel 10 includes a first color subpixel 11, a second color subpixel 12, and a third color subpixel 13. For example, the first color subpixel 11 may be a blue subpixel that emits blue light, the second color subpixel 12 may be a red subpixel that emits red light, and the third color subpixel 13 may be a green subpixel that emits green light. For example, the light-emitting regions 101 of the first color subpixel 11, the second color subpixel 12, and the third color subpixel 13 are all rectangular. For example, the first color subpixels 11 and the second color subpixels 12 are alternately arranged in one direction, for example, the Y direction, to form a first subpixel group, and the included angle between the center line connecting the light-emitting regions 101 of the first color subpixel 11 and the second color subpixel 12 and a straight line extending in the Y direction is large, for example, 3 to 10 degrees. For example, the third color subpixels 13 are arranged in one direction, e.g., the Y direction, to form a second subpixel group, and the first and second subpixel groups are arranged alternately in another direction, e.g., the X direction. For example, the plurality of subpixels 10 are arranged in a tripod-shaped pixel array.

[0268] 17 and 18, the limiting structures 200 surrounding different subpixels 10 may be integrally formed or spaced apart. For example, the limiting structure 200 surrounding each subpixel 10 may surround the first electrode 110 and cover one peripheral edge of the first electrode 110.

[0269] 17 and 18, the portion of the definition structure 200 surrounding each subpixel 10 exposed to the second opening 402 of the pixel definition pattern includes a blocking portion 210. The definition structure in this embodiment may have the same stacked structure characteristics as the definition structure in the display substrate in the above example, and will not be described again here.

[0270] 17 and 18, the plurality of passages 300 includes a plurality of main passages 310 and a plurality of branch passages 320. The main passages and branch passages in the display substrate shown in FIG. 18 have the same definitions as the main passages and branch passages in the display substrate shown in FIG. 2, and therefore will not be described again here.

[0271] 17 and 18, the multiple main passages 310 include a first main passage 311 and a second main passage 312 whose extending directions intersect, the first main passage 311 communicates with the second main passage 312, and charges transferred by the second electrode 120 can be transferred between the first main passage 311 and the second main passage 312. For example, one of the first main passage 311 and the second main passage 312 extends in the X direction, and the other extends in the Y direction.

[0272] 17 and 18, both ends of the branch passage 320 are connected to the main passage 310 that extends in the same direction. For example, the branch passage 320 extends in a direction different from the main passage 310.

[0273] 17 and 18, the main passage 310 passes through the light-emitting region 101 of the first color subpixel 11 and the light-emitting region 101 of the second color subpixel 12. For example, the first main passage 311 passes through the light-emitting region 101 of the first color subpixel 11 and the light-emitting region 101 of the second color subpixel 12. For example, the branch passage 320 passes through the light-emitting region 101 of the third color subpixel 13.

[0274] 17 and 18 , the circular confining structure 200 surrounding the light-emitting region 101 of the first color subpixel 11 is not exposed to the second opening 420 of the pixel confining pattern. For example, in the circular confining structure 200 surrounding the light-emitting region 101 of the second color subpixel 12, at least a portion thereof located between the second color subpixel 13 and the third color subpixel 13 is exposed to the second opening 420 to form the blocking portion 210. For example, in the circular confining structure 200 surrounding the light-emitting region 101 of the second color subpixel 12, at least a portion thereof located between the third color subpixel 13 and the first color subpixel 11 and at least a portion thereof located between the third color subpixel 13 and the second color subpixel 12 are exposed to the second opening 420 to form the blocking portion 210. For example, all of the blocking portions 210 surrounding the light-emitting region 101 of any subpixel 10 are non-closed annular blocking portions 210.

[0275] In the display substrate according to this embodiment, by providing the fewest number of blocking portions, an effective blocking effect is achieved to reduce crosstalk, and the resistance of the second electrode does not increase significantly.

[0276] In each of the above embodiments, at least some of the 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, thereby improving the continuity of the second electrode at the edge of the display area.

[0277] Another embodiment of the present disclosure provides a display substrate including a base substrate and a plurality of subpixels, the subpixels being disposed on the base substrate, each of at least some of the subpixels 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 disposed on both sides of the light-emitting functional layer in a direction perpendicular to the base substrate, the first electrode being disposed between the light-emitting functional layer and the base substrate, the light-emitting functional layer including a plurality of film layers. A blocking portion is disposed between at least two adjacent subpixels, at least one layer of the light-emitting functional layer and at least a portion of the second electrode are cut at an edge of the blocking portion, and at least a portion of the second electrode of adjacent subpixels is disposed continuously to form a mesh-like path, the mesh-like path including a plurality of intersecting paths, at least one path having a non-uniform width. The base substrate, the subpixels, and the blocking portion in this embodiment may have the same features as the base substrate, the subpixels, and the blocking portion in any of the above embodiments.

[0278] 11 and 12, at least a part of the edge of the non-uniform width passage 300 is the edge of the blocking portion 210, and the non-uniform width passage 300 includes a first passage portion 3011 overlapping the light-emitting region 101 and a second passage portion 3012 located at a position other than the light-emitting region 101. A straight line perpendicular to the extension direction of the non-uniform width passage 300 is a first straight line passing through the orthogonal projection of the first passage portion 3011 on the base substrate 01, and a second straight line passing through the orthogonal projection of the second passage portion 3012 on the base substrate 01. The length of the connecting line between the two intersections of the first straight line and the orthogonal projection on the base substrate 01 of the edge of the blocking portion 210 located on both sides of the first passage portion 3011 is a first connecting line length L31, and the length of the connecting line between the two intersections of the second straight line and the orthogonal projection on the base substrate 01 of the edge of the blocking portion 210 located on both sides of the second passage portion 3012 is a second connecting line length L32, and the first connecting line length L31 is greater than or equal to the second connecting line length L32.

[0279] The blocking portion disposed on the display substrate of the present disclosure blocks at least one layer of the light-emitting functional layer and at least a part of the second electrode, and by setting the shape of the blocking portion, the second electrode forms a mesh-like passage, and the distance between the edges of the blocking portion on both sides of the first passage portion corresponding to the light-emitting area of ​​the mesh-like passage is equal to or greater than the distance between the edges of the blocking portion on both sides of the second passage portion corresponding to the non-light-emitting area, which further reduces crosstalk between adjacent sub-pixels and improves the conductivity of the second electrode, ensures that the resistance of the second electrode does not increase as much as possible, and is advantageous in avoiding problems of excessive power consumption and brightness uniformity of the display substrate.

[0280] As shown in FIGS. 1 to 18 , an embodiment of the present disclosure provides a display substrate including a base substrate, a plurality of sub-pixels, and a pixel-limiting pattern, wherein the plurality of sub-pixels are located on the base substrate, and each sub-pixel of at least some of the sub-pixels includes 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 in a direction perpendicular to the base substrate, the first electrode being located between the light-emitting functional layer and the base substrate, the light-emitting functional layer including a plurality of film layers, the second electrode covering the light-emitting region of each sub-pixel, and the pixel-limiting pattern being located between the second electrode and the base substrate. and is located on a side of the first electrode away from the base substrate, the pixel-limiting pattern includes a plurality of first openings, one sub-pixel corresponds to at least one first opening, at least a part 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, wherein the pixel-limiting pattern further includes a plurality of second openings, the plurality of second openings are located between at least some of the sub-pixels, and at least one layer of the light-emitting functional layer and at least a part of the second electrode are cut by the second openings, which is advantageous for reducing crosstalk between adjacent sub-pixels.

[0281] In some examples, as shown in Figures 1 to 18, at least one blocking 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 cut by the blocking portion.

[0282] In some examples, as shown in Figures 1 to 18, a gap is provided between the orthogonal projection on the base substrate of a portion of the edge of the blocking portion and the orthogonal projection on the base substrate of the edge of the second opening in which it is located, which is advantageous in realizing blocking of the light-emitting functional layer by the edge position of the blocking portion.

[0283] In some examples, as shown in Figures 1 to 18, in a direction perpendicular to the extension direction of the blocking portion, the distances between the two edges of the light-emitting regions of the sub-pixels located on both sides of the blocking portion and the edge of the blocking portion exposed to the second opening are different, which is advantageous for improving the conductive effect of the second electrode, ensuring as much as possible that the resistance of the second electrode does not increase, and avoiding problems of excessively high power consumption and brightness uniformity of the display substrate.

[0284] In some examples, as shown in FIGS. 1-18, at least one second opening is disposed around the luminescent area of ​​at least one sub-pixel.

[0285] In some examples, as shown in Figures 1 to 18, the portion of the second electrode surrounding the second opening includes a closed ring structure, which allows the shape of the second electrode to have a mesh-like structure, and is advantageous in improving the conduction effect of the second electrode.

[0286] In some examples, as shown in Figures 1 to 18, the second electrode overlapping the light-emitting region of the sub-pixel and the second electrode away from the light-emitting region of the second opening have a continuous structure, which is advantageous for improving the conductive effect of the second electrode, ensuring as much as possible that the resistance of the second electrode does not increase, and avoiding problems of excessively high power consumption and brightness uniformity of the display substrate.

[0287] In some examples, as shown in Figures 1 to 18, in a direction perpendicular to the extension direction of the blocking portion, the second electrodes of the sub-pixels located on both sides of the blocking portion are connected at positions other than the second opening, which is advantageous for improving the conduction effect of the second electrodes and ensures as much as possible that the resistance of the second electrodes does not increase.

[0288] In some examples, as shown in Figures 1 to 18, the second opening surrounding the light-emitting region of at least one subpixel has a non-closed ring structure, and the second electrode is continuously disposed at the notch position of the non-closed ring second opening.

[0289] In some examples, as shown in Figures 1 to 18, the shape of the light-emitting region of at least one sub-pixel includes a polygon, and the second opening is located on each side of the polygon away from the center of the light-emitting region, which is advantageous for reducing crosstalk between adjacent sub-pixels.

[0290] In some examples, as shown in FIGS. 1 to 18, the boundary of the second opening includes a portion where the extending direction intersects with both the row direction and the column direction.

[0291] In some examples, as shown in FIGS. 1 to 18, the edge of the second opening includes a portion whose extension direction is parallel to either the row direction or the column direction.

[0292] In some examples, as shown in Figures 1 to 18, the plurality of subpixels include a plurality of first color subpixels, a plurality of second color subpixels, and a plurality of third color subpixels, and the plurality of subpixels are arranged as a plurality of first subpixel groups and a plurality of second subpixel groups alternately arranged along a first direction, each first subpixel group includes the first color subpixels and the second color subpixels alternately arranged along a second direction, and each second subpixel group includes the third color subpixels arranged along the second direction, and the first direction intersects with the second direction.

[0293] In some examples, as shown in Figures 1 to 18, the second opening includes a non-closed annular first opening surrounding at least one first-color subpixel, and a first notch is provided in the non-closed annular first opening, and the first notch is provided opposite at least one of a side and a corner of the first-color subpixel.

[0294] In some examples, as shown in Figures 1 to 18, the second opening includes a non-closed annular second opening surrounding at least one second-color subpixel, and a second notch is provided in the non-closed annular second opening, and the second notch is provided opposite at least one of the sides and corners of the second-color subpixel.

[0295] In some examples, as shown in Figures 1 to 18, the second opening includes a non-closed annular third opening surrounding at least one third-color subpixel, and a third notch is provided in the non-closed annular third opening, and the third notch is provided opposite at least one of the sides and corners of the third-color subpixel.

[0296] In some examples, as shown in FIGS. 1 to 18, the first opening is located between the first color subpixel and the third color subpixel that are adjacent to each other, or the first opening is located between the first color subpixel and the second color subpixel that are adjacent to each other.

[0297] In some examples, as shown in FIGS. 1 to 18, the second opening is located between the second color subpixel and the third color subpixel that are adjacent to each other, or the second opening is located between the first color subpixel and the second color subpixel that are adjacent to each other.

[0298] In some examples, as shown in FIGS. 1 to 18, the third opening is located between the second color subpixel and the third color subpixel that are adjacent to each other, or the second opening is located between the first color subpixel and the third color subpixel that are adjacent to each other.

[0299] In some examples, as shown in FIGS. 1-18, the size of the first notch and the size of the second notch are different.

[0300] In some examples, as shown in FIGS. 1 to 18 , the first color subpixel and the second color subpixel include the first opening and the second opening that are adjacent to each other, the minimum distance between the adjacent first opening and the adjacent second opening is a first separation distance L001, the maximum separation distance between the first openings surrounding the first color subpixel in the arrangement direction of the adjacent first openings and the adjacent second openings (for example, the distance between two intersections of a line passing through the center of the light-emitting region of the first color subpixel and an edge of the first opening that surrounds the light-emitting region close to the center of the light-emitting region as shown in FIG. 11 ), and the maximum separation distance between the second openings surrounding the second color subpixel in the arrangement direction of the adjacent first opening and the adjacent second opening is a third separation distance L003, and both the second separation distance and the third separation distance are greater than the first separation distance. By setting the distance between the openings at different positions, the size of the second electrode at the position covering the light-emitting region can be increased, ensuring that the sub-pixels display normally and improving the conductive effect of the second electrode at positions other than the light-emitting region.

[0301] In some examples, as shown in Figures 1 to 18, the display substrate further includes an insulating layer located between the pixel limiting pattern and the base substrate, the blocking portion is located on a surface of the insulating layer away from the base substrate, and the insulating layer is installed at a position other than the blocking portion in the second opening.

[0302] The distribution of the second openings in this embodiment may be the same as the distribution of the blocking portions in the above embodiment, and the distribution of the second openings may refer to the distribution of the blocking portions.

[0303] An embodiment of the present disclosure provides a display substrate including a base substrate and a plurality of sub-pixels disposed on the base substrate, wherein each sub-pixel of at least some of the sub-pixels includes a light-emitting element, the light-emitting element including a light-emitting region, the light-emitting element including a light-emitting functional layer, a first electrode and a second electrode disposed on both sides of the light-emitting functional layer in a direction perpendicular to the base substrate, the first electrode being disposed between the light-emitting functional layer and the base substrate, and the light-emitting functional layer including a plurality of film layers. a blocking portion is provided between at least two adjacent subpixels, at least one layer of the light-emitting functional layer and at least a portion of the second electrode are cut by the edge of the blocking portion, and at least a portion of the second electrodes of the adjacently provided subpixels are continuously provided to form a mesh-like passage, the length in one direction of the orthogonal projection of the second electrodes of at least some of the subpixels on the base substrate is greater than the sum of the sizes of the orthogonal projections of the light-emitting areas of the subpixels arranged in that direction on the base substrate, the mesh-like passage includes a plurality of passages arranged in an intersecting manner, at least one passage has a non-uniform width, and the width of the portion of the passage with the non-uniform width that overlaps with the light-emitting area is greater than the width of the portion that overlaps with at least a position other than the light-emitting area.

[0304] For example, according to an embodiment of the present disclosure, the one direction includes a row direction or a column direction.

[0305] For example, according to an embodiment of the present disclosure, the plurality of sub-pixels include sub-pixels of different colors, and the widths of the overlapping portions between the passages and the light-emitting regions of the sub-pixels of different colors are different.

[0306] For example, according to an embodiment of the present disclosure, the edge of the blocking portion includes a portion whose extension direction intersects with both the row direction and the column direction.

[0307] For example, according to an embodiment of the present disclosure, the edge of the blocking portion includes a portion whose extension direction is parallel to one of the row direction and the column direction.

[0308] For example, according to an embodiment of the present disclosure, the plurality of passages include a plurality of main passages and a plurality of branch passages, the plurality of main passages passing through the region where at least some of the sub-pixels are located, and both ends of at least one branch passage are connected to main passages whose extension directions intersect, or both ends of at least one branch passage are connected to main passages whose extension directions are the same.

[0309] For example, according to an embodiment of the present disclosure, the plurality of main passages include a first main passage and a second main passage whose extending directions intersect, and both ends of at least one branch passage are connected to the first main passage and the second main passage, respectively, or both ends of at least one branch passage are connected to one of the first main passage and the second main passage.

[0310] For example, according to an embodiment of the present disclosure, the plurality of subpixels include a plurality of first color subpixels, a plurality of second color subpixels, and a plurality of third color subpixels, and the plurality of subpixels are arranged as a plurality of first subpixel groups and a plurality of second subpixel groups alternately arranged along a first direction, each first subpixel group includes the first color subpixels and the second color subpixels alternately arranged along a second direction, and each second subpixel group includes the third color subpixels arranged along the second direction, and the first direction intersects with the second direction.

[0311] For example, according to an embodiment of the present disclosure, the plurality of passages include a plurality of main passages, each of which penetrates an area where at least some of the subpixels are located, and at least one of the main passages overlaps with the light-emitting areas of all of the third-color subpixels in one of the second subpixel groups.

[0312] For example, according to an embodiment of the present disclosure, the plurality of trunk paths further includes a trunk path passing through the first sub-pixel group.

[0313] For example, according to an embodiment of the present disclosure, the plurality of main passages include a first main passage and a second main passage whose extending directions intersect, and the plurality of passages further include a plurality of branch passages, wherein both ends of at least one branch passage are connected to the first main passage and the second main passage, respectively, and the at least one branch passage passes through at least one of the first color subpixels and the second color subpixels.

[0314] For example, according to an embodiment of the present disclosure, the blocking portion includes a non-closed annular first blocking portion surrounding at least one first color subpixel, at least two first notches are provided in the non-closed annular first blocking portion, and the at least one branch passage is connected to the main passage through the first notch.

[0315] For example, according to an embodiment of the present disclosure, the blocking portion includes a non-closed ring-shaped second blocking portion surrounding at least one second color subpixel, at least two second notches are provided in the non-closed ring-shaped second blocking portion, and the at least one branch passage is connected to the main passage through the second notch.

[0316] For example, according to an embodiment of the present disclosure, the at least one branch passage passes through the at least two first notches, and the at least two first notches include one first notch located on a side of the light-emitting area of ​​the first color subpixel in the first direction and one first notch located on a side of the light-emitting area of ​​the first color subpixel in the second direction.

[0317] For example, according to an embodiment of the present disclosure, the at least one branch passage passes through the at least two second notches, and the at least two second notches include one second notch located on a side of the light-emitting region of the second-color subpixel in the first direction and one second notch located on a side of the light-emitting region of the second-color subpixel in the second direction.

[0318] For example, according to an embodiment of the present disclosure, the first notch is configured to expose at least one corner of the light-emitting area of ​​the first color subpixel.

[0319] For example, according to an embodiment of the present disclosure, the sides or extensions of the light-emitting region of the at least one first-color subpixel are connected in order to form a polygon, and multiple vertices of the polygon have areas that do not overlap with multiple corners of the light-emitting region, the light-emitting region of the at least one first-color subpixel includes at least one specific corner, and the area of ​​the area where the specific corner and its corresponding vertex angle of the polygon do not overlap is larger than the area where each corner of at least some of the other corners do not overlap with the vertex angle of the polygon corresponding to the corner, and at least some of the first notches are configured to expose at least some of the specific corners.

[0320] For example, according to an embodiment of the present disclosure, at least a portion of the first blocking portion is located between the first color subpixel and the third color subpixel that are adjacent to each other in a third direction, the first direction and the second direction both intersect with the third direction, a distance between the edges where the first blocking portion and the light-emitting region of the first color subpixel approach each other is a first distance, a distance between the edges where the first blocking portion and the light-emitting region of the third color subpixel approach each other is a second distance, and the first distance is less than the second distance.

[0321] For example, according to an embodiment of the present disclosure, at least a portion of the second blocking portion is located between the second color subpixel and the third color subpixel that are adjacent to each other in a third direction, the first direction and the second direction both intersect with the third direction, a distance between the edges where the second blocking portion and the light-emitting region of the second color subpixel approach each other is a third distance, a distance between the edges where the second blocking portion and the light-emitting region of the third color subpixel approach each other is a fourth distance, and the third distance is less than the fourth distance.

[0322] For example, according to an embodiment of the present disclosure, the blocking portion includes a non-closed annular third blocking portion surrounding at least one third-color subpixel, the non-closed annular third blocking portion has at least two third notches that expose corners of the light-emitting area of ​​the third-color subpixel, and the at least one main passage passes through the third notch.

[0323] For example, according to an embodiment of the present disclosure, the third blocking portion is located between the first color subpixel and the third color subpixel adjacent to each other in the third direction, the first direction and the second direction both intersect with the third direction, a distance between an edge where the third blocking portion and an edge where the light-emitting region of the third color subpixel approach each other is a fifth distance, a distance between an edge where the third blocking portion and an edge where the light-emitting region of the first color subpixel approach each other is a sixth distance, and the fifth distance is less than the sixth distance; and / or the third blocking portion is located between the second color subpixel and the third color subpixel adjacent to each other in the third direction, the first direction and the second direction both intersect with the third direction, a distance between an edge where the third blocking portion and an edge where the light-emitting region of the third color subpixel approach each other is a fifth distance, and a distance between an edge where the third blocking portion and an edge where the light-emitting region of the second color subpixel approach each other is a seventh distance, and the fifth distance is less than the seventh distance.

[0324] For example, according to an embodiment of the present disclosure, the blocking portion further includes a fourth blocking portion, and the fourth blocking portion is located between the adjacent first color subpixel and the second color subpixel arranged in the second direction or the first direction.

[0325] For example, according to an embodiment of the present disclosure, the blocking portion includes a non-closed annular first blocking portion surrounding at least one first-color subpixel, the non-closed annular first blocking portion has at least two first notches that expose corners of the light-emitting area of ​​the first-color subpixel, the at least two first notches include two first notches that are oppositely disposed, and the main passage passes through the two first notches.

[0326] For example, according to an embodiment of the present disclosure, the blocking portion includes a non-closed ring-shaped second blocking portion surrounding at least one second-color subpixel, and the non-closed ring-shaped second blocking portion has at least two second notches that expose corners of the light-emitting area of ​​the second-color subpixel, and the at least two second notches include two second notches arranged opposite each other, and the second notch and the first notch are arranged opposite each other, so that the main passage passes through the first notch and the second notch.

[0327] For example, according to an embodiment of the present disclosure, at least a portion of the first blocking portion is located between the first color subpixel and the third color subpixel that are adjacent to each other in a third direction, the first direction and the second direction both intersect with the third direction, a distance between the edges where the first blocking portion and the light-emitting region of the first color subpixel approach each other is a first distance, a distance between the edges where the first blocking portion and the light-emitting region of the third color subpixel approach each other is a second distance, and the first distance is less than the second distance.

[0328] For example, according to an embodiment of the present disclosure, at least a portion of the second blocking portion is located between the second color subpixel and the third color subpixel that are adjacent to each other in a third direction, the first direction and the second direction both intersect with the third direction, a distance between the edges where the second blocking portion and the light-emitting region of the second color subpixel approach each other is a third distance, a distance between the edges where the second blocking portion and the light-emitting region of the third color subpixel approach each other is a fourth distance, and the third distance is less than the fourth distance.

[0329] For example, according to an embodiment of the present disclosure, the distance between the first blocking portion and the second blocking portion adjacent to each other in the first direction is greater than or equal to the size of the first notch in the second direction and the size of the second notch in the second direction.

[0330] For example, according to an embodiment of the present disclosure, the blocking portion includes a non-closed annular third blocking portion surrounding at least one third-color subpixel, the non-closed annular third blocking portion has at least two third notches that expose corners of the light-emitting area of ​​the third-color subpixel, the at least two third notches include two third notches that are oppositely disposed, and the main passage passes through the two oppositely disposed third notches, the interval between the third blocking portions that are adjacently disposed in the first direction, and the interval between the third blocking portions that are adjacently disposed in the second direction.

[0331] For example, according to an embodiment of the present disclosure, at least a portion of the third blocking portion is located between the adjacent second color subpixel and the adjacent third color subpixel, and / or at least a portion of the third blocking portion is located between the adjacent first color subpixel and the adjacent third color subpixel.

[0332] For example, according to an embodiment of the present disclosure, the light-emitting area of ​​the first-color subpixel includes a plurality of corners, the blocking portion includes a non-closed annular first blocking portion surrounding at least one first-color subpixel, the non-closed annular first blocking portion is provided with at least two first notches exposing at least two corners of the plurality of corners, and the at least two first notches include two first notches of different sizes.

[0333] For example, according to an embodiment of the present disclosure, the light-emitting area of ​​the first color subpixel includes four corners, and the four corners include two first corners facing each other in the first direction and two second corners facing each other in the second direction, and the size of the first notches exposing the first corners is different from the size of the first notches exposing the second corners.

[0334] For example, according to an embodiment of the present disclosure, the light-emitting area of ​​the second-color subpixel includes a plurality of corners, the blocking portion includes a non-closed ring-shaped second blocking portion surrounding at least one second-color subpixel, the non-closed ring-shaped second blocking portion has at least two second notches exposing at least two corners of the plurality of corners, and the at least two second notches include two second notches of different sizes.

[0335] For example, according to an embodiment of the present disclosure, the light-emitting region of the second color subpixel includes four corners, and the four corners include two third corners facing each other in the first direction and two fourth corners facing each other in the second direction, and the size of the second notch exposing the third corners is different from the size of the second notch exposing the fourth corners.

[0336] For example, according to an embodiment of the present disclosure, the blocking portion includes a non-closed annular first blocking portion surrounding at least one first color subpixel, the non-closed annular first blocking portion has at least two first notches that expose at least two sides of the light-emitting area of ​​the first color subpixel, and the main passage passes through the two first notches.

[0337] For example, according to an embodiment of the present disclosure, the blocking portion includes a non-closed ring-shaped second blocking portion surrounding at least one second color subpixel, and the non-closed ring-shaped second blocking portion has at least two second notches that expose at least two sides of the light-emitting area of ​​the second color subpixel, and the first blocking portion and the second blocking portion are arranged opposite to each other.

[0338] For example, according to an embodiment of the present disclosure, the display substrate further includes a pixel-limiting pattern located on a side of the first electrode away from the base substrate, and an insulating layer located between the pixel-limiting pattern and the base substrate, the pixel-limiting pattern including a plurality of first openings, each sub-pixel corresponding to at least one first opening, at least a portion of the light-emitting element of the sub-pixel located in the first opening corresponding to the sub-pixel, and the first openings configured to expose the first electrode, and the pixel-limiting pattern further includes a second opening configured to expose the blocking portion, the blocking portion being located between the light-emitting functional layer and the insulating layer.

[0339] For example, according to an embodiment of the present disclosure, the display substrate further includes a limiting structure located between the light-emitting functional layer and the insulating layer, the limiting structure surrounding the light-emitting region of each sub-pixel of the at least some of the sub-pixels, and a portion of the limiting structure exposed to the second opening including the blocking portion.

[0340] For example, according to an embodiment of the present disclosure, at least a portion of the limiting structure is located on a side of the first electrode away from the base substrate.

[0341] For example, according to an embodiment of the present disclosure, at least a portion of the limiting structure is located between the first electrode and the insulating layer.

[0342] For example, according to an embodiment of the present disclosure, the side of the insulating layer away from the base substrate includes a protrusion, the orthogonal projection of the protrusion on the base substrate overlaps with the orthogonal projection of the limiting structure on the base substrate, and the blocking portion contacts the protrusion.

[0343] For example, according to an embodiment of the present disclosure, the material of the blocking portion includes an inorganic non-metallic material, the material of the insulating layer includes an organic material, and the orthogonal projection of the protrusion on the base substrate is located completely within the orthogonal projection of the blocking portion on the base substrate.

[0344] For example, according to an embodiment of the present disclosure, an edge of at least a portion of the blocking portion protrudes less than 1 micrometer relative to an edge of the protrusion portion.

[0345] For example, according to an embodiment of the present disclosure, the blocking portion includes a single film layer, or the blocking portion includes a first blocking structure layer and a second blocking structure layer stacked together, the first blocking structure layer is located on the side of the second blocking structure layer away from the base substrate, and an edge of the first blocking structure layer protrudes beyond an edge of the second blocking structure layer, or the blocking portion includes a first blocking structure layer, a second blocking structure layer, and a third blocking structure layer stacked together in order, and an edge of the first blocking structure layer and an edge of the third blocking structure layer both protrude beyond an edge of the second blocking structure layer.

[0346] For example, according to an embodiment of the present disclosure, at least one film layer of the light-emitting functional layer includes a charge generating layer, and 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 being located between the first light-emitting layer and the second light-emitting layer, and the charge generating layer being cut at the edge of the blocking portion.

[0347] An embodiment of the present disclosure provides a display substrate including a base substrate and a plurality of sub-pixels, the sub-pixels being disposed on the base substrate, each sub-pixel of at least some 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 disposed on both sides of the light-emitting functional layer in a direction perpendicular to the base substrate, the first electrode being disposed between the light-emitting functional layer and the base substrate, the light-emitting functional layer including a plurality of film layers, a blocking portion 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 being cut off by an edge of the blocking portion, and at least a portion of the second electrode of adjacently disposed sub-pixels being continuously disposed to form a mesh-like passage, the mesh-like passage including a plurality of intersecting passages, at least one passage having a non-uniform width, at least a portion of an edge of the non-uniform width passage being an edge of the blocking portion, the non-uniform width passage including a first passage portion overlapping the light-emitting region and a second passage portion located outside the light-emitting region, The straight lines perpendicular to the extension direction of the non-uniform width passage include a first straight line passing through the orthogonal projection of the first passage portion on the base substrate and a second straight line passing through the orthogonal projection of the second passage portion on the base substrate, and the length of the connecting line between the two intersections of the first straight line and the orthogonal projection of the edges of the blocking portions located on both sides of the first passage portion on the base substrate is a first connecting line length, and the length of the connecting line between the two intersections of the second straight line and the orthogonal projection of the edges of the blocking portions located on both sides of the second passage portion on the base substrate is a second connecting line length, and the first connecting line length is equal to or greater than the second connecting line length.

[0348] 19 is a schematic block diagram of a display device according to another embodiment of the present disclosure. As shown in FIG. 19, the display device according to the embodiment of the present disclosure includes any one of the above-mentioned display substrates.

[0349] For example, the display device further includes a cover plate located on the light-emitting side of the display substrate.

[0350] For example, the display device may be a display device such as an organic light-emitting diode display device, or any product or component having a display function, such as a television, digital camera, mobile phone, watch, tablet PC, laptop, or navigator, which includes the display device, and this embodiment is not limited thereto.

[0351] It should be noted that (1) in the drawings of the embodiments of the present disclosure, only structures related to the embodiments of the present disclosure are referred to, and other structures may refer to the general design, and (2) unless inconsistent, features in the same embodiment and different embodiments of the present disclosure may be combined with each other.

[0352] The above are merely exemplary embodiments of the present disclosure, and are not intended to limit the protection scope of the present disclosure, which is determined by the appended claims. [Explanation of symbols]

[0353] 01 Base board 10 subpixels 400 pixel limited pattern

Claims

1. A display substrate, a base substrate, a plurality of sub-pixels, and a pixel-limiting pattern; the plurality of sub-pixels are located on the base substrate, and each sub-pixel of at least some of the sub-pixels includes 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 in a direction perpendicular to the base substrate, the first electrode being located between the light-emitting functional layer and the base substrate, the light-emitting functional layer including a plurality of film layers, and the second electrode covering the light-emitting region of each sub-pixel; the pixel-limiting pattern is located between the second electrode and the base substrate and on a side of the first electrode that is farther from the base substrate, the pixel-limiting pattern includes a plurality of first openings, one sub-pixel corresponds to at least one first opening, at least a part of a 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-limiting pattern further includes a plurality of second openings, the plurality of second openings being located between at least some of the sub-pixels, and at least one of the light-emitting functional layer and at least a portion of the second electrode being cut by the second openings.

2. The display substrate according to claim 1 , wherein at least one blocking portion is provided in each second opening, and at least one of the light-emitting functional layers and at least a part of the second electrode are cut off by the blocking portion.

3. The display substrate of claim 2 , wherein a gap is provided between an orthogonal projection of a part of the edge of the blocking portion on the base substrate and an orthogonal projection of an edge of the second opening where the blocking portion is located on the base substrate.

4. 4. The display substrate of claim 2, wherein the distances between the two edges of the light-emitting regions of the sub-pixels located on both sides of the blocking portion and the edge of the blocking portion exposed to the second opening are different in a direction perpendicular to the extension direction of the blocking portion.

5. 4. The display substrate according to claim 1, wherein at least one second opening is provided around the luminescent region of at least one sub-pixel.

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

7. 4. The display substrate according to claim 1, wherein the second electrode overlapping the light-emitting region of the sub-pixel and the second electrode apart from the light-emitting region of the second opening have a continuous structure.

8. 4. The display substrate according to claim 2, wherein the second electrodes of the sub-pixels located on both sides of the blocking portion in a direction perpendicular to the extending direction of the blocking portion are connected at a position other than the second opening.

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

10. 4. The display substrate according to claim 1, wherein the shape of the light-emitting region of at least one subpixel includes a polygon, and the second opening is provided on each side of the polygon that is farther from the center of the light-emitting region.

11. 4. The display substrate according to claim 1, wherein the boundary of the second opening includes a portion where the extending direction intersects with both the row direction and the column direction.

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

13. 4. The display substrate of claim 1, wherein the plurality of subpixels include a plurality of first color subpixels, a plurality of second color subpixels, and a plurality of third color subpixels, the plurality of subpixels being arranged as a plurality of first subpixel groups and a plurality of second subpixel groups alternately arranged along a first direction, each first subpixel group including the first color subpixels and the second color subpixels alternately arranged along a second direction, and each second subpixel group including the third color subpixels arranged along the second direction, the first direction intersecting the second direction.

14. 14. The display substrate of claim 13, wherein the second opening includes a non-closed annular first opening surrounding at least one first-color subpixel, a first notch is formed in the non-closed annular first opening, and the first notch is formed opposite at least one of a side and a corner of the first-color subpixel.

15. 15. The display substrate of claim 14, wherein the second opening includes a non-closed annular second opening surrounding at least one second-color subpixel, a second notch is formed in the non-closed annular second opening, and the second notch is formed opposite at least one of a side and a corner of the second-color subpixel.

16. 16. The display substrate of claim 15, wherein the second opening includes a non-closed annular third opening surrounding at least one third-color subpixel, a third notch is formed in the non-closed annular third opening, and the third notch is formed opposite at least one of a side and a corner of the third-color subpixel.

17. 15. The display substrate of claim 14, wherein the first opening is located between the first color subpixel and the third color subpixel that are adjacent to each other, or the first opening is located between the first color subpixel and the second color subpixel that are adjacent to each other.

18. 16. The display substrate of claim 15, wherein the second opening is located between the second color subpixel and the third color subpixel that are adjacent to each other, or the second opening is located between the first color subpixel and the second color subpixel that are adjacent to each other.

19. 17. The display substrate of claim 16, wherein the third opening is located between the second color subpixel and the third color subpixel that are adjacent to each other, or the second opening is located between the first color subpixel and the third color subpixel that are adjacent to each other.

20. The display substrate of claim 15 , wherein the first notch and the second notch have different sizes.

21. 16. The display substrate of claim 15, wherein the first and second color subpixels include the first and second openings adjacent to each other, the first and second openings having a minimum distance between them being a first separation distance, the first and second openings having a maximum distance between them in an arrangement direction of the adjacent first and second openings, the first openings surrounding the first color subpixels being a second separation distance, and the second openings having a maximum distance between them in an arrangement direction of the adjacent first and second openings, the second openings surrounding the second color subpixels being a third separation distance, both of which are greater than the first separation distance.

22. 4. The display substrate according to claim 2, further comprising an insulating layer located between the pixel limiting pattern and the base substrate, the blocking portion being located on a surface of the insulating layer away from the base substrate, and the insulating layer being installed at a position other than the blocking portion in the second opening.

23. 4. The display substrate according to claim 2 or 3, 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 being positioned between the first light-emitting layer and the second light-emitting layer, and the charge generating layer being cut at the edge of the blocking portion.

24. A display device comprising the display substrate according to any one of claims 1 to 3.

Images