Display substrate, display panel and display apparatus

Abstract

A display substrate, a display panel and a display apparatus. The display substrate comprises a base substrate, a plurality of sub-pixels, a pixel definition layer, an inorganic pattern and an organic layer. The pixel definition layer comprises a plurality of pixel openings and a pixel definition portion; the inorganic pattern comprises a plurality of inorganic structures, each inorganic structure comprising a definition main body portion and a definition connection portion connected to each other; the organic layer comprises a plurality of organic structures; each inorganic structure comprises a protruding portion protruding with respect to the edge of an organic structure; the pixel definition layer further comprises a plurality of definition openings, the definition openings being configured to expose at least part of the protruding portions of the inorganic structures, so as to isolate at least one layer of each light-emitting functional layer; at least part of the edge of the definition main body portion of each of the at least one inorganic structure is covered by the pixel definition portion, and at least 50% of at least part of the edge in the length direction thereof is at an equal distance from a first electrode. Thus, the sub-pixels exhibit high electrode flatness, thereby achieving uniform and good light-emitting effects.

Description

Display substrate, display panel and display device TECHNICAL FIELD

[0001] The present disclosure relates to a display substrate, a display panel and a display device. BACKGROUND

[0002] An organic light-emitting diode (OLED) display device is favored by users due to its advantages of rich colors, fast response time, foldability, etc. An organic light-emitting display device with a tandem structure improves the service life and brightness of the light-emitting device and reduces power consumption by adding at least one light-emitting layer and a charge generation layer in the organic light-emitting device, thereby meeting the needs of users for power consumption and service life of the display device.

[0003] SUMMARY

[0004] The embodiments of the present disclosure provide a display substrate, a display panel and a display device.

[0005] At least one embodiment of this disclosure provides a display substrate, including a substrate, a plurality of sub-pixels, a pixel defining layer, an inorganic pattern, and an organic layer. The plurality of sub-pixels are located on the substrate. Each sub-pixel includes a light-emitting functional layer, and a first electrode and a second electrode located on opposite sides of the light-emitting functional layer along a direction perpendicular to the substrate. The first electrode is located between the light-emitting functional layer and the substrate. Each sub-pixel further includes a pixel driving circuit configured to drive the light-emitting functional layer of the sub-pixel to emit light. At least a portion of the pixel defining layer is located between the light-emitting functional layer and the first electrode. The pixel defining layer includes a plurality of pixel openings and a pixel defining portion located between adjacent pixel openings. The pixel openings expose at least a portion of the first electrode to define the light-emitting area of ​​the sub-pixel. The inorganic pattern is located between the first electrode of the sub-pixel and the substrate. The inorganic pattern includes a plurality of inorganic structures, each inorganic structure including a defining body portion and a defining connection portion connected to each other. The defining connection portion is located on one side of the defining body portion. At least a portion of the light-emitting area of ​​the sub-pixel overlaps with the light-emitting area of ​​the sub-pixel. The first electrode of the sub-pixel is connected to the pixel driving circuit through a first connection via in the defined connection portion. An organic layer is located on the side of the inorganic pattern closer to the substrate and in contact with the inorganic pattern. The organic layer includes a plurality of organic structures. The orthographic projection of the inorganic structure on the substrate overlaps at least partially with the orthographic projection of the organic structure on the substrate. The inorganic structure includes a protrusion that protrudes relative to the edge of the organic structure. The light-emitting functional layer includes a plurality of film layers. The pixel defining layer also includes a plurality of defining openings. At least a portion of adjacent sub-pixels in at least some of the sub-pixels have one defining opening. The defining opening is configured to expose at least a portion of the protrusion of the inorganic structure to isolate at least one of the light-emitting functional layers. At least a portion of the edge of the defining body portion of each of the at least one inorganic structure is covered by the pixel defining portion, and at least 50% of the portion of the edge along its length direction is equidistant from the first electrode.

[0006] For example, in a display substrate provided according to at least one embodiment of the present disclosure, the plurality of sub-pixels include at least two sub-pixels of different colors, and the defining body portion of the inorganic structure overlapping with the first electrode of the at least two sub-pixels of different colors all include a covering portion covered by the pixel defining portion, and the distance between the edge of each covering portion and the corresponding first electrode is approximately equal.

[0007] For example, in a display substrate provided according to at least one embodiment of the present disclosure, the plurality of sub-pixels include at least two sub-pixels of different colors, and the defined main body portion of the inorganic structure overlapping with the first electrode of the at least two sub-pixels of different colors all include exposed portions exposed by the defined opening, and the distance between the edge of each exposed portion and the corresponding first electrode is approximately equal.

[0008] For example, according to at least one embodiment of the present disclosure, the defining body portion of the inorganic structure overlapping the first electrode of at least one of the sub-pixels includes a first edge covered by the pixel defining portion and a second edge exposed by the defining opening, wherein the distance between the first edge and the first electrode is less than the distance between the second edge and the first electrode.

[0009] For example, according to at least one embodiment of the present disclosure, the plurality of inorganic structures include a first inorganic structure, wherein two spaced-apart portions of the edge of the defining body portion of the first inorganic structure are covered by the pixel defining portion, and the distance between the two spaced-apart portions of the edge and the first electrode is approximately equal.

[0010] For example, according to at least one embodiment of the present disclosure, the display substrate includes a plurality of inorganic structures including a first inorganic structure and a second inorganic structure adjacent to each other. The area of ​​the light-emitting region of the sub-pixel overlapping with the first inorganic structure is smaller than the area of ​​the light-emitting region of the sub-pixel overlapping with the second inorganic structure. At least a portion of the edge of the defining body portion of the first inorganic structure is covered by the pixel defining portion, and the distance between the portion of the edge of the first inorganic structure and the first electrode is a first distance. At least a portion of the edge of the defining body portion of the second inorganic structure is covered by the pixel defining portion, and the distance between the portion of the edge of the second inorganic structure and the first electrode is a second distance. The first distance is not less than the second distance.

[0011] For example, in a display substrate provided according to at least one embodiment of the present disclosure, the first distance is greater than the second distance.

[0012] For example, in a display substrate provided according to at least one embodiment of the present disclosure, the defined opening is provided between the first electrode of the first inorganic structure overlapping and the first electrode of the second inorganic structure overlapping, a portion of the edge of the defined main body of the first inorganic structure is exposed by the defined opening, and the distance between the defined opening and the pixel opening corresponding to the first inorganic structure is not less than the distance between the defined opening and the pixel opening corresponding to the second inorganic structure.

[0013] For example, in a display substrate provided according to at least one embodiment of the present disclosure, the plurality of inorganic structures includes a third inorganic structure, wherein the area of ​​the light-emitting region of the sub-pixel overlapping with the third inorganic structure is larger than the area of ​​the light-emitting region of the sub-pixel overlapping with the first inorganic structure and smaller than the area of ​​the light-emitting region of the sub-pixel overlapping with the second inorganic structure, at least a portion of the edge of the defining body portion of the third inorganic structure is exposed by the defining opening, and at least 50% of the portion of the edge along its length direction is equidistant from the first electrode.

[0014] For example, according to at least one embodiment of the present disclosure, the display substrate further includes: at least one support structure, the support structure and the first electrode of the sub-pixel are spaced apart in a direction parallel to the substrate, the surface of the support structure away from the substrate is further away from the substrate than at least a portion of the surface of the pixel defining portion away from the substrate, and the orthographic projection of the support structure on the substrate does not overlap with the orthographic projection of the defining opening on the substrate.

[0015] For example, according to at least one embodiment of the display substrate provided in this disclosure, the plurality of sub-pixels includes a plurality of first sub-pixels, a plurality of second sub-pixels, and a plurality of third sub-pixels. The plurality of sub-pixels are arranged as a plurality of first sub-pixel groups and a plurality of second sub-pixel groups alternately arranged along a first arrangement direction. The first sub-pixel groups include first sub-pixels and second sub-pixels alternately arranged along a second arrangement direction. The second sub-pixel groups include the third sub-pixels arranged along the second arrangement direction. The first arrangement direction intersects the second arrangement direction. The first sub-pixel groups and the second sub-pixel groups are staggered in the second arrangement direction, and at least some of the first sub-pixels are surrounded by eight sub-pixels, the eight sub-pixels including the alternately arranged third sub-pixels and second sub-pixels.

[0016] For example, in a display substrate provided according to at least one embodiment of the present disclosure, the first electrode of each sub-pixel includes an electrode body portion, at least a portion of the electrode body portion of the first electrode overlaps with the pixel opening corresponding to the sub-pixel, the support structure is surrounded by a plurality of electrode body portions of a plurality of sub-pixels, and the orthographic projection of the support structure on the substrate does not overlap with the orthographic projection of the inorganic pattern on the substrate.

[0017] For example, in a display substrate provided according to at least one embodiment of the present disclosure, the first electrode of each sub-pixel includes an electrode body portion and an electrode connection portion connected to each other. At least a portion of the electrode body portion of the first electrode overlaps with the pixel opening corresponding to the sub-pixel. The electrode connection portion of the sub-pixel is connected to the pixel driving circuit through the first connection via. The support structure is surrounded by the electrode body portion of at least one sub-pixel and the electrode connection portion of at least another sub-pixel. The orthographic projection of the support structure on the substrate overlaps at least partially with the orthographic projection of the inorganic pattern on the substrate.

[0018] For example, in a display substrate provided according to at least one embodiment of the present disclosure, the minimum distance between the support structure and the defined opening is greater than 0 micrometers and less than 10 micrometers.

[0019] For example, in a display substrate provided according to at least one embodiment of the present disclosure, the minimum distance between the support structure and the defined opening is greater than 2 micrometers.

[0020] For example, in a display substrate provided according to at least one embodiment of the present disclosure, the cross-section of the support structure by a plane parallel to the substrate is circular, elliptical, or polygonal, and the straight-line distance between any two points on the edge of the cross-section is no greater than 20 micrometers.

[0021] For example, in a display substrate provided according to at least one embodiment of the present disclosure, the size of the support structure is no greater than 10 micrometers in a direction perpendicular to the substrate.

[0022] For example, according to at least one embodiment of the present disclosure, the organic layer includes a second connection via, the first connection via communicates with the second connection via, the first electrode of the sub-pixel is connected to the pixel driving circuit through the first connection via and the second connection via, the orthographic projection of the first connection via on the substrate falls into the orthographic projection of the second connection via on the substrate, and the orthographic projection area of ​​the first connection via on the substrate is smaller than the orthographic projection area of ​​the second connection via on the substrate.

[0023] For example, in a display substrate provided according to at least one embodiment of the present disclosure, the straight-line distance between any two points on the edge of a cross section of the first connecting via that is parallel to a plane of the substrate is not greater than 6 micrometers; and / or the straight-line distance between any two points on the edge of a cross section of the second connecting via that is parallel to another plane of the substrate is not greater than 10 micrometers.

[0024] For example, according to at least one embodiment of the present disclosure, the plurality of sub-pixels include a plurality of first sub-pixels, a plurality of second sub-pixels, and a plurality of third sub-pixels. The first sub-pixels, the second sub-pixels, and the third sub-pixels constitute a repeating unit. The first sub-pixels and the second sub-pixels in the repeating unit are arranged sequentially in a first arrangement direction, and the first sub-pixels and the second sub-pixels are located on one side of the third sub-pixels in the second arrangement direction. The first arrangement direction intersects with the second arrangement direction.

[0025] For example, in a display substrate provided according to at least one embodiment of the present disclosure, at least a portion of the edge of the defined body portion of the inorganic structure overlapping with the first electrode of any one of the first sub-pixel, the second sub-pixel, and the third sub-pixel is exposed by the defined opening, and at least one of the defined openings has an "L"-shaped orthographic projection on the substrate.

[0026] For example, in a display substrate provided according to at least one embodiment of the present disclosure, in the first arrangement direction, two defined openings are provided on opposite sides of the light-emitting area of ​​the third sub-pixel, and the two defined openings are symmetrical with respect to the center plane located between them and perpendicular to the center plane of the substrate.

[0027] For example, in a display substrate provided according to at least one embodiment of the present disclosure, the support structure and the third sub-pixel are spaced apart in the first arrangement direction, and the support structure and the third sub-pixel are located on the same side of the first sub-pixel and the second sub-pixel in the second arrangement direction. The defining body portion corresponding to at least one of the first sub-pixel and the second sub-pixel in the repeating unit includes a protruding end relative to the third sub-pixel in the first arrangement direction, and the protruding end at least partially overlaps with the support structure in the second arrangement direction.

[0028] For example, in a display substrate provided according to at least one embodiment of the present disclosure, the plurality of subpixels are arranged as a plurality of subpixel rows and a plurality of subpixel columns, wherein in a direction parallel to the substrate, the distance between adjacent defining openings between two adjacent subpixel rows is no greater than 40 micrometers, and the distance between adjacent defining openings between two adjacent subpixel columns is no greater than 40 micrometers.

[0029] For example, in a display substrate provided according to at least one embodiment of the present disclosure, at least a portion of the edge of the defined body portion of each of the inorganic structures is covered by the pixel defining portion, and the dimension of the defining opening in its extending direction is no greater than 50 micrometers.

[0030] For example, in a display substrate provided according to at least one embodiment of the present disclosure, the maximum dimension of the cross section of the defined opening cut by a plane parallel to the arrangement direction of the adjacent sub-pixels and perpendicular to the substrate direction in the arrangement direction of the adjacent sub-pixels is not greater than 10 micrometers.

[0031] Another embodiment of this disclosure provides a display panel including any of the above-described display substrates.

[0032] Another embodiment of this disclosure provides a display device including any of the above-described display substrates. Attached Figure Description

[0033] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings of the embodiments will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this disclosure, and are not intended to limit this disclosure.

[0034] Figure 1 is a schematic diagram of a partial planar structure of a display substrate provided in at least one embodiment of the present disclosure.

[0035] Figure 2 is a schematic diagram of a partial cross-sectional structure cut along line AA' shown in Figure 1.

[0036] Figure 3 is a schematic diagram of the first electrode of the first sub-pixel and the corresponding limiting structure in the display substrate shown in Figure 1.

[0037] Figure 4 is a schematic diagram of the first electrode of the second sub-pixel and the corresponding limiting structure in the display substrate shown in Figure 1.

[0038] Figure 5 is a schematic diagram of the first electrode of the third sub-pixel and the corresponding limiting structure in the display substrate shown in Figure 1.

[0039] Figure 6 is a schematic diagram of a partial structure corresponding to the first sub-pixel in the display substrate shown in Figure 1.

[0040] Figure 7 is a schematic diagram of a partial cross-sectional structure along line BB' shown in Figure 1.

[0041] Figure 8 is a partial structural schematic diagram of the inorganic pattern in the display substrate shown in Figure 1.

[0042] Figure 9 is a partial planar structure schematic diagram of another display substrate provided in at least one embodiment of the present disclosure.

[0043] Figure 10 is a schematic planar structure diagram of a first connection via and a second connection via provided in at least one embodiment of this disclosure.

[0044] Figure 11 is a partial structural schematic diagram of another display substrate provided in at least one embodiment of the present disclosure.

[0045] Figure 12 is a schematic block diagram of a display device provided in at least one embodiment of the present disclosure. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. Based on the described embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0047] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as “comprising” or “including” mean that an element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Features such as “parallel,” “perpendicular,” and “identical” used in embodiments of this disclosure include features in the strict sense of “parallel,” “perpendicular,” and “identical,” as well as cases where “substantially parallel,” “substantially perpendicular,” and “substantially identical” include a certain degree of error, taking into account measurement and errors associated with the measurement of a particular quantity (e.g., limitations of the measurement system), indicating a range of acceptable deviations for a particular value as determined by one of ordinary skill in the art. For example, “substantially” can mean within one or more standard deviations, or within 10% or 5% of said value. Unless otherwise specified in the following embodiments of this disclosure, the quantity of a component means that the component may be one or more, or can be understood as at least one. “At least one” means one or more, and “more” means at least two.

[0048] Tandem technology involves stacking and connecting the light-emitting layers of sub-pixels in series, with a full-layer charge generation layer, such as a P-type doped charge generation layer P-CGL and an N-type doped charge generation layer N-CGL, between the stacked light-emitting layers. Compared to display substrates without tandem devices, the two light-emitting layers in a tandem device are connected in series, thus enabling dual light-emitting devices. At the same luminous intensity, this significantly reduces the luminous current of the light-emitting devices, improving the lifespan of organic light-emitting elements and reducing power consumption.

[0049] In their research, the inventors of this application discovered that: typically, the two light-emitting layers in a tandem device are connected in series, placing high demands on materials and vapor deposition processes; furthermore, the charge-generating layer in a tandem device has high conductivity, and since the charge-generating layers of two adjacent sub-pixels are continuous films, lateral charge migration occurs, easily causing crosstalk between adjacent sub-pixels and resulting in color shift in the display substrate. Additionally, when a defined opening in the pixel defining portion is used to expose a portion of the defining structure between adjacent sub-pixels to form a partition structure for isolating at least one film layer in the light-emitting functional layer, a portion of the edge of the defining structure overlapping the first electrode of the sub-pixel is covered by the pixel defining portion. The distance between this edge and the first electrode has a significant impact on the morphology and process uniformity of the pixel defining portion. For example, it may result in poor thickness uniformity of the pixel defining portion at different locations, leading to uneven slope angles at the pixel opening, affecting the light emission effect of the sub-pixel, and causing poor electrode flatness of the sub-pixel.

[0050] At least one embodiment of this disclosure provides a display substrate, comprising: a substrate, a plurality of sub-pixels, a pixel defining layer, an inorganic pattern, and an organic layer. The plurality of sub-pixels are located on the substrate, each sub-pixel including a light-emitting functional layer, and a first electrode and a second electrode located on opposite sides of the light-emitting functional layer along a direction perpendicular to the substrate. The first electrode is located between the light-emitting functional layer and the substrate. Each sub-pixel also includes a pixel driving circuit configured to drive the light-emitting functional layer of the sub-pixel to emit light. At least a portion of the pixel defining layer is located between the light-emitting functional layer and the first electrode. The pixel defining layer includes a plurality of pixel openings and a pixel defining portion located between adjacent pixel openings. The pixel openings expose at least a portion of the first electrode to define the light-emitting area of ​​the sub-pixel. The inorganic pattern is located between the first electrode of the sub-pixel and the substrate. The inorganic pattern includes a plurality of inorganic structures, each inorganic structure including a defining body portion and a defining connecting portion connected to each other. The defining connecting portion is located on one side of the defining body portion. The main body of the sub-pixel overlaps with the light-emitting area of ​​the sub-pixel. The first electrode of the sub-pixel is connected to the pixel driving circuit through a first connection via in the defined connection portion. An organic layer is located on the side of the inorganic pattern closer to the substrate and in contact with the inorganic pattern. The organic layer includes a plurality of organic structures. The orthographic projection of the inorganic structure on the substrate overlaps with the orthographic projection of the organic structure on the substrate. The inorganic structure includes a protrusion protruding relative to the edge of the organic structure. The light-emitting functional layer includes a plurality of film layers. The pixel defining layer also includes a plurality of defining openings. At least a portion of adjacent sub-pixels in at least some sub-pixels have a defining opening. The defining opening is configured to expose at least a portion of the protrusion of the inorganic structure to block at least one layer of the light-emitting functional layer. At least a portion of the edge of the defined main body of each inorganic structure is covered by the pixel defining portion, and at least 50% of the portion of the edge along its length direction is equidistant from the first electrode.

[0051] In the display substrate provided by the embodiments of this disclosure, at least a portion of the protrusion of the inorganic structure is exposed by a defined opening, thereby isolating at least one layer of the light-emitting functional layer and reducing the risk of crosstalk between adjacent sub-pixels. In addition, since at least 50% of the edge of each inorganic structure covered by the pixel defining portion along its length direction is equidistant from the first electrode, it is advantageous for the pixel defining portion to have a good morphology while including multiple pixel openings and multiple defined openings. For example, the thickness of the pixel defining portion at different positions can be made uniform, thereby making the slope angle of the pixel defining portion at the pixel opening uniform, resulting in good light emission effect of the sub-pixel. At the same time, it is also beneficial to ensure the flatness of the sub-pixel electrode and the uniformity of the manufacturing process.

[0052] The display substrate, display panel, and display device provided in the embodiments of this disclosure are described below with reference to the accompanying drawings.

[0053] Figure 1 is a partial planar structural schematic diagram of a display substrate provided in at least one embodiment of the present disclosure; Figure 2 is a partial cross-sectional structural schematic diagram taken along line AA' shown in Figure 1; Figure 3 is a schematic diagram of the first electrode and corresponding limiting structure of the first sub-pixel in the display substrate shown in Figure 1; Figure 4 is a schematic diagram of the first electrode and corresponding limiting structure of the second sub-pixel in the display substrate shown in Figure 1; Figure 5 is a schematic diagram of the first electrode and corresponding limiting structure of the third sub-pixel in the display substrate shown in Figure 1; Figure 6 is a partial structural schematic diagram of the display substrate shown in Figure 1 corresponding to the first sub-pixel.

[0054] As shown in Figures 1 and 2, the display substrate includes a substrate 01, a plurality of sub-pixels 10, a pixel defining layer 200, an inorganic pattern 3000, and an organic layer 4000 located on the substrate 01. Each sub-pixel 10 includes a light-emitting functional layer 130, which comprises multiple film layers. For example, the plurality of sub-pixels 10 may be located in an area of ​​the display substrate for displaying images, and the display substrate also includes a peripheral area surrounding the display area. Each sub-pixel 10 also includes a first electrode 110 and a second electrode 120 located on both sides of the light-emitting functional layer 130 along a direction perpendicular to the substrate 01 (i.e., direction Z shown in Figure 2), with the first electrode 110 located between the light-emitting functional layer 130 and the substrate 01. For example, the light-emitting functional layer 130 may include a light-emitting layer for emitting light and a charge-generating layer 133. The charge-generating layer 133 has strong conductivity, which allows the light-emitting functional layer 130 to have advantages such as long lifespan, low power consumption, and high brightness. For example, the light-emitting functional layer 130 may be a film layer in an organic light-emitting element. For example, the light-emitting functional layer 130 may include a first light-emitting layer (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. For example, the sub-pixel 10 may include a tandem light-emitting element, such as a tandem OLED, but the embodiments disclosed herein are not limited thereto. For example, the first electrode 110 may serve as the anode, and the second electrode 120 may serve as the cathode. For example, the cathode may be formed of a material with high conductivity and low work function; 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.

[0055] It should be noted that the light-emitting functional layer 130 shown in Figure 2 may also include other film layers, such as a hole injection layer (HIL), a hole transport layer (HTL), an electron transport layer (ETL), and an electron injection layer (EIL), etc., and the embodiments disclosed herein do not limit this. For example, the hole injection layer, hole transport layer, electron transport layer, electron injection layer, charge generation layer 133, and second electrode 120 are all common film layers of multiple sub-pixels 10, and can be referred to as common layers. In addition, the thickness of each film layer shown in Figure 2 is only for clear illustration of each film layer and does not represent the actual size.

[0056] As shown in Figure 2, the sub-pixel 10 also includes a pixel driving circuit 020, which is configured to drive the light-emitting functional layer 130 of the sub-pixel 10 to emit light. For example, other structures 02 are also provided on the side of the first electrode 110 facing the substrate 01, such as the aforementioned pixel driving circuit 020, signal lines, and various insulating layers, for example, passivation layers, buffer layers, gate insulating layers, interlayer insulating layers, etc. The embodiments of this disclosure are not limited in this regard.

[0057] As shown in Figures 1 and 2, at least a portion of the pixel defining layer 200 is located between the light-emitting functional layer 130 and the first electrode 110, and includes a plurality of pixel openings 201 and pixel defining portions 230 located between adjacent pixel openings 201. The pixel openings 201 expose at least a portion of the first electrode 110 to define the light-emitting region 010 of the sub-pixel 10. For example, the first electrode 110 and the second electrode 120 located on both sides of the light-emitting functional layer 130 can drive the light-emitting functional layer 130 in the pixel openings 201 to emit light. The aforementioned light-emitting region 010 can refer to the area where the sub-pixel 10 effectively emits light, and the shape of the light-emitting region 010 refers to a two-dimensional shape. For example, the shape of the light-emitting region 010 can be the same as the shape of the orthographic projection of the portion of the first electrode 110 exposed by the pixel openings 201 onto the substrate 01.

[0058] As shown in Figures 2-5, the inorganic pattern 3000 is located between the first electrode 110 of the sub-pixel 10 and the substrate 01. For example, the inorganic pattern 3000 is a monolithic structure. The inorganic pattern 3000 includes multiple inorganic structures 300, each including a defining main body portion 310 and a defining connecting portion 320 connected to each other. The defining connecting portion 320 is located on one side of the defining main body portion 310, and at least a portion of the defining main body portion 310 overlaps with the light-emitting area 010 of the sub-pixel 10 (as shown in Figure 1). The first electrode 110 of the sub-pixel 10 is connected to the pixel driving circuit 020 through a first connecting via N1 in the defining connecting portion 320. For example, the pixel driving circuit 020 may include multiple transistors and at least one capacitor (not shown in the figures), and the first electrode 110 can be electrically connected to the pixel driving circuit 020 through the first connecting via N1. For example, the distance between the edge of the defining main body portion 310 and the edge of the first electrode 110 is not less than the distance between the edge of the defining connecting portion 320 and the edge of the first electrode 110.

[0059] For example, as shown in Figures 2 to 5, the defining main body portion 310 and the defining connecting portion 320 in each inorganic structure 300 are an integral structure. For example, the inorganic structure 300 corresponding to sub-pixel 10 refers to the inorganic structure 300 overlapping with the first electrode 110 of the sub-pixel 10. For example, the orthographic projection of the light-emitting area 010 of the sub-pixel 10 (as shown in Figure 1) on the substrate 01 falls into the orthographic projection of the defining main body portion 310 of the inorganic structure 300 corresponding to the sub-pixel 10 on the substrate 01. For example, the light-emitting area 010 of the sub-pixel 10 and the defining connecting portion 320 in the inorganic structure 300 corresponding to the sub-pixel 10 are spaced apart. For example, multiple inorganic structures 300 correspond one-to-one with multiple sub-pixels 10.

[0060] As shown in Figure 2, the organic layer 4000 is located on the side of the inorganic pattern 3000 closest to the substrate 01 and in contact with the inorganic pattern 3000. The organic layer 4000 includes a plurality of organic structures 400. The orthographic projection of the inorganic structure 300 onto the substrate 01 at least partially overlaps with the orthographic projection of the organic structure 400 onto the substrate 01, and the inorganic structure 300 includes a protrusion 350 protruding relative to the edge of the organic structure 400. For example, the organic layer 4000 also includes a flat portion located between the plurality of organic structures 400 and the substrate 01, and this flat portion is connected to the plurality of organic structures 400, for example, the flat portion and the plurality of organic structures 400 are an integral structure. For example, the plurality of organic structures 400 of the organic layer 400 are formed during the fabrication process of the inorganic structure 300. For example, during the process of forming the inorganic pattern 3000 by patterning with an etching solution, a portion of the organic layer 400 that overlaps with the inorganic pattern 3000 is etched together, and the inorganic structure 300 forms a protrusion 350 that protrudes from the edge of the organic structure 400.

[0061] As shown in Figures 1 and 2, the pixel defining layer 200 also includes a plurality of defining openings 202. At least one defining opening 202 is present between adjacent sub-pixels 10. The defining opening 202 is configured to expose at least a portion of the protrusion 350 of the inorganic structure 300 to block at least one layer of the light-emitting functional layers 130. For example, the defining opening 202 is spaced apart from the pixel opening 201. For example, the defining opening 202 is located between adjacent sub-pixels 10. For example, the protrusion 350 of the inorganic structure 300 surrounds the light-emitting region 010 of the sub-pixel 10. For example, a portion of the protrusion 350 of the inorganic structure 300 located between adjacent sub-pixels 10 is exposed by the defining opening 202. The portion of the protrusion 350 of the inorganic structure 300 exposed by the defining opening 202 is configured to block at least one layer of the light-emitting functional layers 130.

[0062] As shown in FIG1, at least a portion of the edge of the defining body portion 310 of each inorganic structure 300 in at least one inorganic structure 300 is covered by the pixel defining portion 230, and at least 50% of the portion of the edge along its length direction is equidistant from the first electrode 110. For example, the distance can be the distance between the edges of the defining body portion 310 and the first electrode 110 that are close to each other. For example, the distance relationship between the edge of the defining body portion 310 (see FIG3) corresponding to the sub-pixel 10 and the edge of the electrode body portion 111 of the first electrode 110 satisfies this relationship. For example, the length direction of the edge of the inorganic structure 300 is the extension direction of the edge. For example, the extension direction can be a straight line direction or a broken line direction. For example, the protrusion 350 of the inorganic structure 300 corresponding to each sub-pixel 10 includes a portion not exposed by the defining opening 202, and this portion of the protrusion 350 is covered by the pixel defining portion 230, where the light-emitting functional layer 130 and the second electrode 120 are continuous. For example, the edge of the inorganic structure 300 corresponding to sub-pixel 10 covered by the pixel defining portion 230 may be continuous or include multiple portions spaced apart from each other. For example, as shown in FIG3, the edge of the inorganic structure 300 corresponding to sub-pixel 10 covered by the pixel defining portion 230 includes edge 331 and edge 332. A portion of edge 331 in its length direction and a portion of edge 332 in its length direction are equidistant from the first electrode 110, and the sum of the lengths of the aforementioned portions of edge 331 and edge 332 is not less than 50% of the sum of the lengths of edge 331 and edge 332. For example, the extension direction of the edge of the inorganic structure 300 corresponding to sub-pixel 10 covered by the pixel defining portion 230 may be a non-linear direction, and the embodiments of this disclosure do not limit this.

[0063] In the display substrate provided by the embodiments of this disclosure, at least a portion of the protrusion of the inorganic structure is exposed by a defined opening, thereby isolating at least one layer of the light-emitting functional layer and reducing the risk of crosstalk between adjacent sub-pixels. In addition, since at least 50% of the edge of each inorganic structure covered by the pixel defining portion along its length direction is equidistant from the first electrode, it is advantageous for the pixel defining portion to have a good morphology while including multiple pixel openings and multiple defined openings. For example, the thickness of the pixel defining portion at different positions can be made uniform, thereby making the slope angle of the pixel defining portion at the pixel opening uniform, resulting in good light emission effect of the sub-pixel. At the same time, it is also beneficial to ensure the flatness of the sub-pixel electrode and the uniformity of the manufacturing process.

[0064] For example, as shown in FIG1, the plurality of sub-pixels 10 in the display substrate includes a plurality of first sub-pixels 101, a plurality of second sub-pixels 102, and a plurality of third sub-pixels 103. The plurality of sub-pixels 10 are arranged in a plurality of first sub-pixel groups 0010 and a plurality of second sub-pixel groups 0020 alternately arranged along a first arrangement direction X. The first sub-pixel group 0010 includes first sub-pixels 101 and second sub-pixels 102 alternately arranged along a second arrangement direction Y, and the second sub-pixel group 0020 includes third sub-pixels 103 arranged along the second arrangement direction Y. For example, the first sub-pixels 101, second sub-pixels 102, and third sub-pixels 103 emit different colors. For example, the first sub-pixel 101 can be a red sub-pixel emitting red light, the second sub-pixel 102 can be a blue sub-pixel emitting blue light, and the third sub-pixel 103 can be a green sub-pixel emitting green light. However, the embodiments of this disclosure are not limited to this, and the emission colors of the first sub-pixels 101, second sub-pixels 102, and third sub-pixels 103 can be interchanged. The first arrangement direction X intersects with the second arrangement direction Y, and both are parallel to the substrate 01.

[0065] For example, as shown in Figure 1, the first sub-pixel group 0010 and the second sub-pixel group 0020 are staggered in the second arrangement direction Y, and at least some of the first sub-pixels 101 are surrounded by eight sub-pixels 10, which include alternately arranged third sub-pixels 103 and second sub-pixels 102. For example, the area of ​​the light-emitting region 010 of the first sub-pixel 101 and the area of ​​the light-emitting region 010 of the third sub-pixel 103 are both smaller than the area of ​​the light-emitting region 010 of the second sub-pixel 102, and the area of ​​the light-emitting region 010 of the third sub-pixel 103 is smaller than the area of ​​the light-emitting region 010 of the first sub-pixel 101.

[0066] In some embodiments, referring to FIG1, the plurality of sub-pixels 10 include at least two sub-pixels 10 of different colors, such as a first sub-pixel 101 and a second sub-pixel 102, but not limited thereto. The defining body portion 310 of the inorganic structure 300 overlapping with the first electrode 110 of the two different colored sub-pixels 10 all include a covering portion covered by the pixel defining portion 230, and the distance between the edge of each covering portion and the corresponding first electrode 110 is approximately equal. For example, in the embodiments of this disclosure, the distance between the edge of the inorganic structure 300 and the first electrode 110 can be the distance between the mutually facing edges of the inorganic structure 300 and the first electrode 110.

[0067] For example, referring to Figures 4 and 6, the inorganic structure 300 corresponding to the first sub-pixel 101 includes a first covering portion M, and the inorganic structure 300 corresponding to the second sub-pixel 102 includes a second covering portion N. The distance between the edge of the first covering portion M and the first electrode 110 of the first sub-pixel 101 can be approximately equal to the distance between the edge of the second covering portion N and the first electrode 110 of the second sub-pixel 102, for example, both being equal to the same value. For example, the distance between the edge of the first covering portion M and the first electrode 110 of the first sub-pixel 101 can be substantially constant, and the distance between the edge of the second covering portion N and the first electrode 110 of the second sub-pixel 102 can be substantially constant. Figures 4 and 6 only schematically show the first covering portion M and the second covering portion N. The distances between the edges of the first covering portion M and the edges of the second covering portion N and their respective corresponding first electrodes 110 can be designed according to design requirements, for example, they can be equal.

[0068] This setup helps maintain a relatively constant distance between the edge of the covered portion of the inorganic structure corresponding to different color sub-pixels and the first electrode, thereby ensuring that the slope angle of the pixel opening of different color sub-pixels is consistent. This results in uniform and good light emission from different color sub-pixels, and also makes the manufacturing process more uniform.

[0069] For example, referring to Figure 6, the extension lengths of two adjacent defining openings 202 in the circumferential direction of the light-emitting area of ​​the first sub-pixel 101 (but not limited to the first sub-pixel) may not be equal. For example, the extension length of one of the two adjacent defining openings 202 may be substantially equal to the size of the edge of the light-emitting area it faces, while the size of the other of the two adjacent defining openings 202 may be smaller than the size of the edge of the light-emitting area it faces. With this arrangement, while meeting the separation requirements, the influence on the morphology of the pixel defining portion due to excessively large defining opening sizes can be reduced.

[0070] For example, referring to FIG6, the extension lengths of the two limiting openings 202 facing each other in the circumferential direction of the light-emitting area of ​​the first sub-pixel 101 (of course, not limited to the first sub-pixel) are basically equal, so that the limiting openings 202 can have good symmetry, which is beneficial to reduce the influence on the shape of the pixel limiting part and weaken the difference in the light emission angle caused therefrom.

[0071] In some embodiments, referring to FIG1, the plurality of sub-pixels 10 include at least two sub-pixels 10 of different colors, such as a first sub-pixel 101 and a third sub-pixel 103, but not limited thereto. The defined main body portion 310 of the inorganic structure 300 overlapping with the first electrode 110 of the two sub-pixels 10 of different colors all include an exposed portion exposed by the defined opening 202, and the distance between the edge of each exposed portion and the corresponding first electrode 110 is approximately equal.

[0072] For example, referring to Figures 5 and 6, the four portions of the edge of the defining main body 310 of the inorganic structure 300 corresponding to the first sub-pixel 101 are all exposed by the defining opening 202, and the distances between the four portions of the edge and the first electrode 110 of the first sub-pixel 101 are ar1, ar2, ar3, and ar4, respectively, and ar1 = ar2 = ar3 = ar4. For example, referring to Figure 3, the two opposing portions of the edge of the defining main body 310 of the inorganic structure 300 corresponding to the third sub-pixel 103 are both exposed by the defining opening 202 (see Figure 1), and the distances between the two portions and the first electrode 110 of the third sub-pixel 103 are ag2 and ag4, respectively, and ag2 = ag4.

[0073] By making ar1 = ar2 = ar3 = ar4 = ag2 = ag4, it is beneficial to ensure that the manufacturing process of multiple inorganic structures corresponding to sub-pixels of different colors is consistent, and it is also beneficial to ensure that the light emission effect of each sub-pixel is uniform and good.

[0074] For example, as shown in Figures 1, 3, and 4, the inorganic pattern 3000 includes a plurality of inorganic structures 300, and the plurality of inorganic structures 300 include a first inorganic structure 301 and a second inorganic structure 302 that are adjacent to each other. For example, a third sub-pixel 103 corresponds to the first inorganic structure 301, and a second sub-pixel 102 corresponds to the second inorganic structure 302, but is not limited thereto. The area of ​​the light-emitting region 010 overlapping with the first inorganic structure 301 (e.g., the area of ​​the light-emitting region 010 of the third sub-pixel 103) is smaller than the area of ​​the light-emitting region 010 overlapping with the second inorganic structure 302 (e.g., the area of ​​the light-emitting region 010 of the second sub-pixel 102).

[0075] For example, as shown in Figures 1 and 3, at least a portion of the edges (such as edges 331 and 332) of the defining main body portion 310 of the first inorganic structure 301 are covered by the pixel defining portion 230, and the distance between the aforementioned edges of the first inorganic structure 301 and the first electrode 110 is a first distance. For example, the distance between edge 331 and the first electrode 110 is ag1, and the distance between edge 332 and the first electrode 110 is ag3, where ag1 and ag3 are both first distances, and ag1 = ag3. For example, as shown in Figures 1 and 4, at least a portion of the edges of the defining main body portion 310 of the second inorganic structure 302 are covered by the pixel defining portion 230, and the distance between this portion of the edge of the second inorganic structure 302 and the first electrode 110 is a second distance. For example, at least 90% of the edge of the defining main body portion 310 of the second inorganic structure 302 surrounding the light-emitting area 010 of the second sub-pixel 102 is covered by the pixel defining portion 230. FIG4 schematically shows the distances (all second distances) between the edge covered by the pixel defining portion 230 and the first electrode 110 at different positions of the defining main body portion 310 of the second inorganic structure 302, namely ab1, ab2, ab3 and ab4, and ab1 = ab1 = ab3 = ab4.

[0076] For example, as shown in Figures 1, 3, and 4, the first distance is not less than the second distance; for example, the first distance can be equal to the second distance. This arrangement helps to ensure consistency in the morphology of the pixel limiting portion at the corresponding pixel opening of sub-pixels with different luminous area areas, minimizes the deviation in the light emission effect of each sub-pixel, and ensures consistency in the manufacturing process for sub-pixels with different luminous area areas.

[0077] For example, as shown in Figures 1, 3, and 4, the first distance can be greater than the second distance. For instance, compared to a sub-pixel with a larger luminous area (e.g., the second sub-pixel), when a portion of the edge of the inorganic structure's defining body corresponding to a sub-pixel with a smaller luminous area is exposed by the defining opening, the morphology of the pixel defining portion is more significantly affected. For example, the thickness of the portion between the pixel opening and the defining opening may be smaller, resulting in poorer uniformity, and the slope angle requirement at the pixel opening may not be met, thus affecting the light emission angle of the sub-pixel. Therefore, by ensuring that the first distance is not less than the second distance, it is beneficial to reduce the impact of the defining opening on the light emission angle of the sub-pixel with a smaller luminous area, allowing for a more uniform and better light emission effect from multiple sub-pixels with different luminous area areas.

[0078] For example, as shown in Figures 1, 3, and 4, there is a defined opening 202 between the first electrode 110 overlapping the first inorganic structure 301 (e.g., the first electrode 110 of the third sub-pixel 103) and the first electrode 110 overlapping the second inorganic structure 302 (e.g., the first electrode 110 of the second sub-pixel 102). For example, the defined opening 202 circled by the dashed box P in Figure 1 exposes a portion of the edge of the defined main body portion 310 of the first inorganic structure 301 corresponding to the third sub-pixel 103. The distance between the defined opening 202 and the pixel opening 201 corresponding to the first inorganic structure 301 is not less than the distance between the defined opening 202 and the pixel opening 201 corresponding to the second inorganic structure 302. For example, the distance between the exposed edge of the defined opening 202 of the defined main body portion 310 of the first inorganic structure 301 corresponding to the third sub-pixel 103 and the pixel opening 201 corresponding to the first inorganic structure 301 is W1, and the distance between the exposed edge of the defined opening 202 of the defined main body portion 310 of the second inorganic structure 302 corresponding to the second sub-pixel 102 and the pixel opening 201 corresponding to the second inorganic structure 302 is W2, and W1 is not less than W2.

[0079] For example, as shown in Figure 1, taking the defined opening 202 in the dashed box P as an example, the orthographic projection of the defined opening 202 on the substrate is elongated. In its length direction, the length of the defined opening 202 is greater than the size of the first electrode 110 of the third sub-pixel 103. Therefore, setting the defined opening 202 near the pixel opening 201 corresponding to the third sub-pixel 103 may significantly affect the morphology of the pixel defining portion 230 (see Figure 2). For example, it may result in a smaller thickness of the pixel defining portion 230 between the pixel opening 201 corresponding to the third sub-pixel 103 and its adjacent defined opening 202. This could prevent this portion of the pixel defining portion 230 from forming a good slope angle at the pixel opening 201 as designed, thereby affecting the light emission effect of the third sub-pixel 103.

[0080] Therefore, by ensuring that W1 is not less than W2, there can be sufficient space between the pixel opening corresponding to the third sub-pixel and the limiting opening located between the third sub-pixel and the second sub-pixel, so as to facilitate the setting of the pixel limiting part and the pixel limiting part surrounding the light-emitting area of ​​the third sub-pixel has a good morphology, such as being able to maintain sufficient thickness and form a good slope angle, so as to improve the light emission effect of the third sub-pixel.

[0081] For example, as shown in Figures 1 to 5, the display substrate includes a plurality of inorganic structures 300, and the plurality of inorganic structures 300 includes a third inorganic structure 303. For example, a first sub-pixel 101 corresponds to the third inorganic structure 303. The area of ​​the light-emitting region 010 of the sub-pixel 10 (i.e., the first sub-pixel 101) overlapping with the third inorganic structure 303 is larger than the area of ​​the light-emitting region 010 of the sub-pixel 10 (i.e., the third sub-pixel 103) overlapping with the first inorganic structure 301, and smaller than the area of ​​the light-emitting region 010 of the sub-pixel 10 (i.e., the second sub-pixel 102) overlapping with the second inorganic structure 302. For example, at least a portion of the edge of the defining body portion 310 of the third inorganic structure 303 is exposed by a defined opening 202, and at least 50% of this portion of the edge is equidistant from the first electrode 110 along its length direction.

[0082] For example, as shown in Figures 1, 5, and 6, four portions of the edge of the defining main body 310 of the third inorganic structure 303 corresponding to the first sub-pixel 101 are exposed by the defining opening 202, and the distances between the aforementioned four portions of the edge and the first electrode 110 of the first sub-pixel 101 are ar1, ar2, ar3, and ar4, respectively, where ar1 = ar2 = ar3 = ar4. For example, the distance between each of the four portions of the edge and the first electrode 110 can be constant.

[0083] This configuration helps to ensure good uniformity in the distance between the exposed edge of the defined opening of the first sub-pixel and the first electrode, and helps to ensure good morphology of the pixel defining portion surrounding the pixel opening of the first sub-pixel, thus ensuring good light emission effect.

[0084] For example, referring to Figures 2 and 3, the defining body portion 310 of the inorganic structure 300 overlapping the first electrode 110 of at least one sub-pixel 10 (e.g., the third sub-pixel 103) includes a first edge 313 covered by the pixel defining portion 230 and a second edge 323 exposed by the defining opening 202, and the distance between the first edge 313 and the first electrode 110 is less than the distance between the second edge 323 and the first electrode 110. For example, the first edge 313 may include two opposing parts, namely edge 331 and edge 332. For example, the distance ag1 between edge 331 and the first electrode 110 may be equal to the distance ag3 between edge 332 and the first electrode 110, but is not limited thereto. For example, the second edge 323 may include two opposing parts, namely edge 333 and edge 334. For example, the distance ag2 between edge 333 and the first electrode 110 may be equal to the distance ag4 between edge 334 and the first electrode 110, but is not limited thereto. For example, ag1 = ag3 < ag2 = ag4. For example, ag1 < ag3 < ag2 = ag4. For example, ag1 < ag3 < ag2 < ag4, but not limited to this. For example, the distance between the first edge 313 and the first electrode 110 and the distance between the second edge 323 and the second electrode 120 can both be average distances.

[0085] This configuration allows for a larger distance between the defined opening of the defined main body portion corresponding to the exposed sub-pixel and the first electrode, and consequently a larger distance between the first electrode and the pixel opening. This helps to ensure that the portion of the pixel defined portion located between the pixel opening and the defined opening has a good morphology, resulting in good light extraction.

[0086] For example, as shown in FIG3, the two spaced-apart edges of the defining body portion 310 of the first inorganic structure 301 corresponding to the third sub-pixel 103 (see FIG1) are covered by the pixel defining portion. For example, the edge between the two spaced-apart portions of the defining body portion 310 is exposed by the defining opening 202 (see FIG1). For example, the two spaced-apart portions may be edge 331 and edge 332 of the first edge 313, and edge 331 and edge 332 are opposite to each other. For example, the distance ag1 between edge 331 and the first electrode 110 is equal to the distance ag3 between edge 332 and the first electrode 110. In some embodiments, the two portions may also be two adjacent edges that are spaced apart from each other, and the embodiments of this disclosure are not limited to this.

[0087] This configuration helps to maintain the consistency of the shape of the pixel limiting part surrounding the pixel opening corresponding to the sub-pixel, which is beneficial to the good light emission effect of the sub-pixel.

[0088] For example, as shown in Figure 1, multiple sub-pixels 10 are arranged into multiple sub-pixel rows R1 and multiple sub-pixel columns R2. For example, the arrangement direction of the multiple sub-pixel rows R1 is a first arrangement direction X rotated 45 degrees clockwise, and the arrangement direction of the multiple sub-pixel columns R2 is a second arrangement direction Y rotated 45 degrees clockwise. For example, multiple limiting openings 202 are provided between two adjacent sub-pixel rows R1, and the distance between adjacent limiting openings 202 between two adjacent sub-pixel rows R1 is no greater than 40 micrometers. For example, it can be 5–10 micrometers, 15–25 micrometers, 30–40 micrometers, or other values ​​no greater than 40 micrometers, which are not listed here. For example, multiple limiting openings 202 are provided between two adjacent sub-pixel columns R2, and the distance between adjacent limiting openings 202 between two adjacent sub-pixel columns R2 is no greater than 40 micrometers. For example, it can be 5–10 micrometers, 15–25 micrometers, 30–40 micrometers, or other values ​​no greater than 40 micrometers, which are not listed here.

[0089] This configuration helps to maintain a good spacing between adjacent defined openings, and to ensure that multiple defined openings in the pixel defined portion are spaced apart and evenly distributed. It also helps to maintain a good morphology for each part of the pixel defined portion, such as making the thickness of the pixel defined portion uniform and having a good slope angle at each pixel opening and each defined opening.

[0090] For example, as shown in FIG1, at least a portion of the edge of the defining body portion 310 of the inorganic structure 300 corresponding to each sub-pixel 10 is covered by the pixel defining portion 230, thereby ensuring electrical connection between the second electrodes 120 (see FIG2) of the multiple sub-pixels 10, so that the second electrodes 120 have continuity. For example, the orthographic projection of the defining opening 202 on the substrate 01 is strip-shaped, and the length of the strip is no greater than 50 micrometers. For example, the length of the strip is approximately equal to the length of the edge of the defining opening 202 near the first electrode 110 of the sub-pixel 10. For example, the length of the strip can be equal to the dimension of the defining opening 202 in its extension direction. For example, the length of the strip can be 20-30 micrometers, 30-40 micrometers, 35-50 micrometers, or other values ​​no greater than 50 micrometers, which will not be listed here, thereby reducing the impact on the morphology of the pixel defining portion while ensuring that the protrusion 350 (see FIG2) exposed by the defining opening 202 has good isolation capability.

[0091] For example, as shown in FIG2, in the arrangement direction of adjacent sub-pixels 10 (e.g., the third sub-pixel 103 and the second sub-pixel 102) (e.g., direction Q shown in FIG2), the maximum dimension of the cross-section of the opening 202 defined by a plane parallel to the arrangement direction of the adjacent sub-pixels 10 and perpendicular to the substrate 01 in direction Q is no greater than 10 micrometers. For example, the orthographic projection of the opening 202 on the substrate 01 is a strip, and the dimension of the cross-section in direction Q can be equal to the width of the strip. For example, the width of the strip is no greater than 10 micrometers, for example, it can be 5-8 micrometers, 6-9 micrometers, or 7-10 micrometers, thereby exposing part of the edge of the inorganic structure 300 to have good isolation capability. For example, in the embodiments of this disclosure, the arrangement direction of the adjacent sub-pixels 10 is parallel to the substrate 01.

[0092] Figure 7 is a schematic diagram of a partial cross-sectional structure along line BB' shown in Figure 1; Figure 8 is a schematic diagram of a partial structure of the inorganic pattern in the display substrate shown in Figure 1.

[0093] For example, as shown in Figures 1 and 7, the display substrate further includes at least one support structure 500. The support structure 500 and the first electrode 110 of the sub-pixel 10 are spaced apart in a direction parallel to the substrate 01, and the surface of the support structure 500 away from the substrate 01 is further away from the substrate 01 than the surface of the pixel defining portion 230 away from the substrate 01. For example, the support structure 500 is configured as a support mask. For example, as shown in Figure 7, the support structure 500 is located on the side of the pixel defining portion 230 away from the substrate 01. For example, the support structure 500 and the pixel defining portion 230 may be made of different materials. For example, the orthographic projection of the support structure 500 on the substrate 01 does not overlap with the orthographic projection of the defining opening 202 on the substrate 01. For example, the support structure 500 and the defining opening 202 are spaced apart in a direction parallel to the substrate 01. Thus, the influence of the defining opening 202 on the support effect of the support structure 500 can be reduced, which is beneficial to the stable setting of the support structure 500 and has a lower impact on the process and production capacity.

[0094] For example, as shown in FIG1, the first electrode 110 of each sub-pixel 10 includes an electrode body portion 111 and an electrode connection portion 112. The electrode body portion 111 and the electrode connection portion 112 are connected, for example, the electrode body portion 111 and the electrode connection portion 112 are an integral structure. As shown in FIG1 and FIG2, at least a portion of the electrode body portion 111 of the first electrode 110 overlaps with the pixel opening 201 corresponding to the sub-pixel 10, and the electrode connection portion 112 is connected to the pixel driving circuit 020 through a first connection via N1. For example, the orthographic projection of the pixel opening 201 corresponding to the sub-pixel 10 on the substrate falls into the orthographic projection of the electrode body portion 111 of the first electrode 110 of the sub-pixel 10 on the substrate. For example, the support structure 500 may be located within the dashed frame U1 shown in FIG8, but is not limited thereto. For example, the electrode connection portion 112 is located on one side of the electrode body portion 111, and the orthographic projection area of ​​the electrode connection portion 112 on the substrate is smaller than the orthographic projection area of ​​the electrode body portion 111 on the substrate. For example, referring to Figures 1 and 3, the orthographic projection of the electrode body portion 111 corresponding to the sub-pixel 10 onto the substrate falls within the orthographic projection of the limiting body portion 310 onto the substrate, and the orthographic projection of the electrode connection portion 112 onto the substrate falls within the orthographic projection of the limiting connection portion 320 onto the substrate 01. In some embodiments, the electrode connection portion 112 may at least partially overlap with the limiting body portion 310 corresponding to the sub-pixel 10 (see Figure 3).

[0095] For example, as shown in FIG1, the support structure 500 is surrounded by multiple electrode body portions 111 of multiple sub-pixels 10. For example, the support structure 500 is surrounded by the electrode body portions 111 of a first sub-pixel 101, a second sub-pixel 102, and two third sub-pixels 103. For example, the support structure 500 is located between the opposite corners of the inorganic structure 300 corresponding to the first sub-pixel 101 and the inorganic structure 300 corresponding to the second sub-pixel 102 adjacent in the first arrangement direction X, and between the opposite corners of the inorganic structures 300 corresponding to the two adjacent third sub-pixels 103 in the second arrangement direction Y. The orthographic projection of the support structure 500 on the substrate does not overlap with the orthographic projection of the inorganic pattern 3000 on the substrate. For example, the support structure 500 and the inorganic pattern 3000 are spaced apart.

[0096] This arrangement helps to maintain a suitable distance between the support structure and the inorganic pattern, giving the support structure sufficient space for arrangement and thus enabling the support structure to have good support capabilities.

[0097] Figure 9 is a partial planar structure schematic diagram of another display substrate provided in at least one embodiment of the present disclosure.

[0098] For example, the display substrate shown in FIG9 differs from the display substrate shown in FIG1 in that the support structure 500 is different; other features can be found in the relevant descriptions of the above embodiments and will not be repeated here. For example, the support structure 500 is surrounded by the electrode body portion 111 of at least one sub-pixel 10 and the electrode connection portion 112 of at least another sub-pixel 10. For example, the support structure 500 is surrounded by four sub-pixels 10. For example, the support structure 500 is located between two adjacent third sub-pixels 103 in the first arrangement direction X, and between adjacent first sub-pixels 101 and second sub-pixels 102 in the second arrangement direction Y. For example, the support structure 500 is located between the electrode body portion 111 of the first electrode 110 of the first sub-pixel 101 and the electrode connection portion 112 of the first electrode 110 of the second sub-pixel 102 adjacent in the second arrangement direction Y, and between the electrode body portion 111 of the first electrode 110 of one third sub-pixel 103 and the electrode connection portion 112 of the first electrode 110 of another third sub-pixel 103 adjacent in the first arrangement direction X. For example, the support structure 500 may be located within the dashed frame U2 shown in FIG8, but is not limited thereto. For example, the orthographic projection of the support structure 500 on the substrate 01 at least partially overlaps with the orthographic projection of the inorganic pattern 3000 on the substrate 01. For example, the support structure 500 is located on the side of the inorganic pattern 3000 away from the substrate 01 and is in contact with the inorganic pattern 3000.

[0099] This configuration allows the surface of the support structure near the substrate to be flat, and the surface of the support structure away from the substrate to be relatively far from the substrate. This results in a higher support structure, preventing the mask from scratching the film layers during multiple evaporation processes, thus giving the support structure good support capabilities.

[0100] For example, referring to FIG1, at least two defining openings 202 located on opposite sides of the support structure 500 are rotationally symmetrical with respect to the center of the support structure 500. For example, defining openings 202 are provided on opposite sides of the support structure 500, and the two defining openings 202 closest to the support structure 500 are rotationally symmetrical with respect to the center of the support structure 500. For example, the support structure 500 is surrounded by four defining openings 202, and is located between two opposite defining openings 202 and between two other opposite defining openings 202. For example, a defining opening 202 on one side of the support structure 500 coincides with another defining opening 202 on the opposite side after being rotated 180 degrees in a plane perpendicular to the substrate.

[0101] This configuration helps to make the partitions on both sides of the support structure more symmetrical, so that the effect of the opening setting on the shape of the pixel limiting part is relatively symmetrical and uniform, which in turn helps to make the support structure more stable and have a uniform support effect.

[0102] For example, referring to Figure 1, the minimum distance between the support structure 500 and the limiting opening 202 is greater than 0 micrometers and less than 10 micrometers. For example, this minimum distance can be the minimum distance between the orthographic projection of the support structure 500 on the substrate and the orthographic projection of the limiting opening 202 on the substrate. For example, this minimum distance can be 1–5 micrometers, 3–6 micrometers, 7–10 micrometers, or other values ​​greater than 0 micrometers and less than 10 micrometers, which will not be listed here. This arrangement helps to reduce the influence of the limiting opening 202 on the morphology of the pixel limiting portion 230 (see Figure 2), making the surface of the pixel limiting portion 230 in contact with the support structure 500 as flat as possible, thereby ensuring the stable setting of the support structure 500 and reducing the risk of tilting or positional displacement of the support structure 500.

[0103] For example, referring to Figure 1, the minimum distance between the support structure 500 and the limiting opening 202 is greater than 2 micrometers and less than 10 micrometers. For example, it can be no less than 3 micrometers, 4 micrometers, 5 micrometers, 7 micrometers, or 9 micrometers, or it can be any other value between 2 micrometers and 10 micrometers, which will not be listed here. With this setting, the influence of the limiting opening 202 on the morphology of the pixel limiting part 230 (see Figure 2) can be effectively reduced, and the risk of the support structure 500 tilting or shifting position can be further reduced, thereby making the support structure 500 have a good support effect.

[0104] For example, referring to Figures 1 and 2, the cross-section of the support structure 500 cut by a plane parallel to the substrate 01 is circular, elliptical, or polygonal, and the straight-line distance between any two points on the edge of this cross-section is no greater than 20 micrometers. For example, the aforementioned straight-line distance is the length of the straight-line segment between two points on the edge of the cross-section of the support structure 500. For example, the support structure 500 can be cylindrical, and the shapes of the multiple cross-sections of the support structure 500 cut by multiple planes parallel to the substrate 01 can be different. For example, if the cross-section of the support structure 500 cut by a plane parallel to the substrate 01 is circular, the maximum straight-line distance between any two points on the edge of the cross-section of the support structure 500 is the diameter of the circle. For example, when the cross-section of the support structure 500 cut by a plane parallel to the substrate 01 is elliptical, the maximum straight-line distance between any two points on the edge of the cross-section of the support structure 500 is equal to the dimension of the major axis of the ellipse. The embodiments of this disclosure do not limit the shape of the cross-section corresponding to the support structure 500; for example, it can also be polygonal or other shapes.

[0105] For example, as shown in Figure 7, the size of the support structure 500 in the direction perpendicular to the substrate 01, i.e., in direction Z, is no greater than 10 micrometers. For example, in order to make the support structure 500 have a strong supporting force on the mask, the size of the support structure 500 in direction Z can be made as large as possible, for example, it can be 5-10 micrometers, 6-8 micrometers, or 8-10 micrometers. The embodiments of this disclosure do not limit this.

[0106] Figure 10 is a schematic planar structure diagram of a first connection via and a second connection via provided in at least one embodiment of this disclosure.

[0107] For example, as shown in Figures 1 and 10, the organic layer 4000 includes a second connecting via N2, and the first connecting via N1 communicates with the second connecting via N2. The first electrode 110 of the sub-pixel 10 is connected to the pixel driving circuit 020 through the first connecting via N1 and the second connecting via N2. For example, the orthographic projection of the first connecting via N1 on the substrate 01 falls within the orthographic projection of the second connecting via N2 on the substrate 01, and the orthographic projection area of ​​the first connecting via N1 on the substrate 01 is smaller than the orthographic projection area of ​​the second connecting via N2 on the substrate 01. For example, the first connecting via N1 and the second connecting via N2 form a via. For example, the edge of the inorganic structure 300 at the first connecting via N1 protrudes beyond the inner wall of the second connecting via N2. For example, the orthographic projection of the portion of the first connecting via N1 located in the second connecting via N2 on the substrate 01 is a closed ring. For example, the shape of the cross section of the first connecting via N1 and the shape of the cross section of the second connecting via N2 may be different. The embodiments of this disclosure do not limit the cross-sectional shape of the first connecting via N1 and the second connecting via N2.

[0108] This configuration effectively reduces the risk of the first electrode breaking in the first or second connection via, thereby ensuring the connection between the first electrode and the pixel driving circuit.

[0109] For example, as shown in Figures 1 and 10, the straight-line distance between any two points on the edge of the cross-section of the first connecting via N1 cut by a plane parallel to the substrate 01 (as shown in Figure 10, b and b') is no greater than 6 micrometers. For example, it can be 3 micrometers, 4 micrometers, 5 micrometers, or other values ​​no greater than 6 micrometers, which are not listed here. For example, the straight-line distance between any two points on the edge of the cross-section of the second connecting via N2 cut by another plane parallel to the substrate 01 is no greater than 10 micrometers (as shown in Figure 10, c and c'). For example, it can be 6 micrometers, 7 micrometers, 8 micrometers, or other values ​​no greater than 10 micrometers, which are not listed here. For example, the inner diameter of the first connecting via N1 is smaller than the inner diameter of the second connecting via N2.

[0110] By ensuring that the first and second connection vias meet the aforementioned dimensional requirements, an effective electrical connection can be established between the first electrode and the pixel driving circuit, reducing the risk of breakage of the first electrode while maintaining good electrode flatness, thereby ensuring good light extraction performance.

[0111] Figure 11 is a partial structural schematic diagram of another display substrate provided in at least one embodiment of the present disclosure.

[0112] For example, the arrangement of multiple sub-pixels in the display substrate shown in FIG11 is different from that in the display substrate shown in FIG1. ​​The structure of the substrate, pixel limiting part and light-emitting element in the display substrate shown in FIG11 can be referred to the description of FIG1 in the above embodiments, and will not be repeated here.

[0113] For example, as shown in FIG11, the plurality of sub-pixels 10 include a plurality of first sub-pixels 101, a plurality of second sub-pixels 102, and a plurality of third sub-pixels 103, and the first sub-pixels 101, second sub-pixels 102, and third sub-pixels 103 constitute a repeating unit. For clarity, only one repeating unit is shown in FIG11, and the embodiments of this disclosure do not limit the number of repeating units. For example, the first sub-pixels 101 and second sub-pixels 102 in the repeating unit are arranged sequentially in the first arrangement direction X, and the first sub-pixels 101 and second sub-pixels 102 are located on one side of the third sub-pixel 103 in the second arrangement direction Y. For example, one of the first sub-pixels 101 and the second sub-pixels 102 can be a red sub-pixel emitting red light, and the other can be a green sub-pixel emitting green light, and the third sub-pixel 103 can be a blue sub-pixel emitting blue light. For example, the emission colors of the first sub-pixels 101, second sub-pixels 102, and third sub-pixels 103 can be interchanged. For example, the area of ​​the light-emitting region of the first sub-pixel 101 is smaller than the area of ​​the light-emitting region of the second sub-pixel 102, and the area of ​​the light-emitting region of the second sub-pixel 102 is smaller than the area of ​​the light-emitting region of the third sub-pixel 103. Of course, the embodiments disclosed herein are not limited to this, and the area of ​​the light-emitting region of each sub-pixel can be set according to product requirements.

[0114] For example, as shown in FIG11, a limiting opening 202 is provided between any two of the first sub-pixel 101, the second sub-pixel 102, and the third sub-pixel 103 to achieve a good separation effect. For example, referring to FIG2 and FIG11, at least a portion of the edge of the limiting body portion 310 of the inorganic structure 300 overlapping with the first electrode 110 of any one of the first sub-pixels 101, the second sub-pixel 102, and the third sub-pixel 103 is exposed by the limiting opening 202, and the orthographic projection of at least one limiting opening 202 on the substrate 01 is "L" shaped. For example, the orthographic projection of the light-emitting area 010 of each sub-pixel 10 in the repeating unit on the substrate is rectangular. For example, at least one limiting opening 202 surrounds the corner between two adjacent sides of the light-emitting area 010 of the sub-pixel 10. For example, the two opposite corners of the light-emitting area 010 of the first sub-pixel 101 are each surrounded by the limiting opening 202.

[0115] This design allows the portions of the inorganic structure's main body corresponding to the two adjacent sides of the light-emitting area to be exposed through a defined opening, forming a partition structure. This simplifies the manufacturing process while ensuring a good partition effect.

[0116] For example, as shown in FIG11, in the first arrangement direction X, two limiting openings 202 are provided on opposite sides of the light-emitting area 010 of the third sub-pixel 103, and the two limiting openings 202 are symmetrical with respect to the center plane P located between them and perpendicular to the substrate 01. For example, at least a portion of the third sub-pixel 103 is located between the first sub-pixel 101 and the second sub-pixel 102. For example, the limiting body portion 310 of the inorganic structure 300 corresponding to the third sub-pixel 103 is symmetrical with respect to the center plane P. Thus, the partition structure on both sides of the center plane P of the third sub-pixel 103 can be made symmetrical, which is beneficial to making the partition effect symmetrical, and further makes the morphology of the pixel limiting portion on both sides of the center plane P symmetrical, which is beneficial to making the light emission effect of the third sub-pixel 103 uniform and good.

[0117] For example, referring to FIG11, the defining body portion 310 corresponding to at least one of the first sub-pixel 101 and the second sub-pixel 102 in the repeating unit includes a protruding end 1021 relative to the third sub-pixel 103 in the first arrangement direction X. For example, the protruding end 1021 may be a portion of the first sub-pixel 101 or the second sub-pixel 102 that extends beyond the third sub-pixel 103 in the first arrangement direction X. For example, in the first arrangement direction X, the support structure 500 is spaced apart from the third sub-pixel 103. For example, the support structure 500 and the third sub-pixel 103 may be located in the same column. For example, in the second arrangement direction Y, the support structure 500 and the third sub-pixel 103 are located on the same side of the first sub-pixel 101 and the second sub-pixel 102, and the protruding end 1021 overlaps at least a portion of the support structure 500 in the second arrangement direction Y. For example, in the second arrangement direction Y, the size of the support structure 500 is substantially the same as the size of the light-emitting area 010 of the third sub-pixel 103. For example, in the first arrangement direction X, the difference between the distance between the distant edges of the first sub-pixel 101 and the second sub-pixel 102 and the size of the third sub-pixel 103 is not less than the distance between the support structure 500 and the third sub-pixel 103. For example, the edge of the sub-pixel 10 can be a portion of the edge of the first electrode 110 of the sub-pixel 10. For example, in the first arrangement direction X, the size of the sub-pixel 10 can be the size of its first electrode 110, but is not limited thereto.

[0118] This configuration allows for the efficient use of the layout space on the side of the second sub-pixel closest to the third sub-pixel and the side of the third sub-pixel closest to the protruding end. It also ensures the separation effect while facilitating the stable setup of the support structure, thus providing a good mask support effect.

[0119] Another embodiment of this disclosure provides a display panel that includes any of the display substrates described above. Therefore, the technical effects of the aforementioned display substrates can also be reflected in this display panel, and will not be elaborated further here. For example, the display panel may further include an Enhancement Efficiency Structure (EES) located on the display substrate (e.g., on its encapsulation layer) to enhance light extraction efficiency. For example, the display panel may further include a color filter, which may be located on the side of the EES away from the display substrate, but is not limited thereto; by providing a color filter, the color intensity of light can be enhanced. For example, the display panel may also have other film layers, which are not limited in the embodiments of this disclosure.

[0120] Figure 12 is a schematic block diagram of a display device provided in at least one embodiment of the present disclosure.

[0121] As shown in Figure 12, another embodiment of this disclosure provides a display device, which includes any of the above-described display substrates. Therefore, the technical effects of the aforementioned display substrates can also be reflected in this display device, and will not be elaborated further here.

[0122] For example, the display device also includes a cover plate located on the light-emitting side of the display substrate.

[0123] For example, the display device can be an organic light-emitting diode display device or other display device, as well as any product or component with display function, such as a television, digital camera, mobile phone, watch, tablet computer, laptop computer, or navigator that includes the display device. This embodiment is not limited to this.

[0124] The following points need to be explained:

[0125] (1) The accompanying drawings of the embodiments of this disclosure only involve the structures involved in the embodiments of this disclosure, and other structures can be referred to the general design.

[0126] (2) Where there is no conflict, features of the same embodiment and different embodiments of this disclosure may be combined with each other.

[0127] The above description is merely an exemplary embodiment of this disclosure and is not intended to limit the scope of protection of this disclosure, which is determined by the appended claims.

Claims

1. A display substrate, comprising: Substrate; Multiple sub-pixels are located on the substrate. Each sub-pixel includes a light-emitting functional layer and a first electrode and a second electrode located on both sides of the light-emitting functional layer along a direction perpendicular to the substrate. The first electrode is located between the light-emitting functional layer and the substrate. Each sub-pixel also includes a pixel driving circuit configured to drive the light-emitting functional layer of the sub-pixel to emit light. A pixel defining layer, at least a portion of which is located between the light-emitting functional layer and the first electrode, the pixel defining layer including a plurality of pixel openings and a pixel defining portion located between adjacent pixel openings, the pixel openings exposing at least a portion of the first electrode to define the light-emitting area of ​​the sub-pixel; An inorganic pattern is located between the first electrode of the sub-pixel and the substrate. The inorganic pattern includes a plurality of inorganic structures. Each inorganic structure includes a defining main body portion and a defining connecting portion that are connected to each other. The defining connecting portion is located on one side of the defining main body portion. At least a portion of the defining main body portion overlaps with the light-emitting area of ​​the sub-pixel. The first electrode of the sub-pixel is connected to the pixel driving circuit through a first connecting via in the defining connecting portion. An organic layer is located on the side of the inorganic pattern closest to the substrate and in contact with the inorganic pattern. The organic layer includes a plurality of organic structures, the orthographic projections of the inorganic structures on the substrate at least partially overlapping the orthographic projections of the organic structures on the substrate, and each inorganic structure includes a protrusion that protrudes relative to the edge of the organic structure. The light-emitting functional layer includes multiple film layers, and the pixel defining layer further includes multiple defining openings. At least some of the sub-pixels have one defining opening between adjacent sub-pixels. The defining opening is configured to expose at least a portion of the protrusions of the inorganic structure to isolate at least one layer of the light-emitting functional layer. At least a portion of the edge of the defining body portion of each of the inorganic structures is covered by the pixel defining portion, and at least 50% of the portion of the edge along its length direction is equidistant from the edge of the first electrode.

2. The display substrate according to claim 1, wherein, The plurality of sub-pixels includes at least two sub-pixels of different colors, and the defining main body of the inorganic structure that overlaps with the first electrode of the at least two sub-pixels of different colors includes a covering portion covered by the pixel defining portion, and the distance between the edge of each covering portion and the corresponding first electrode is approximately equal.

3. The display substrate according to claim 1, wherein, The plurality of sub-pixels includes at least two sub-pixels of different colors, and the defined main body portion of the inorganic structure that overlaps with the first electrode of the at least two sub-pixels of different colors includes an exposed portion exposed by the defined opening, and the distance between the edge of each exposed portion and the corresponding first electrode is approximately equal.

4. The display substrate according to any one of claims 1-3, wherein, The defined main body of the inorganic structure overlapping the first electrode of at least one of the sub-pixels includes a first edge covered by the pixel defining portion and a second edge exposed by the defining opening, wherein the distance between the first edge and the first electrode is less than the distance between the second edge and the first electrode.

5. The display substrate according to any one of claims 1-4, wherein, The plurality of inorganic structures include a first inorganic structure, wherein two spaced-apart portions of the edge of the defining body portion of the first inorganic structure are covered by the pixel defining portion, and the distances between the two spaced-apart portions of the edge and the first electrode are approximately equal.

6. The display substrate according to claim 1, wherein, The plurality of inorganic structures includes a first inorganic structure and a second inorganic structure that are adjacent to each other. The area of ​​the light-emitting region of the sub-pixel that overlaps with the first inorganic structure is smaller than the area of ​​the light-emitting region of the sub-pixel that overlaps with the second inorganic structure. At least a portion of the edge of the defined main body of the first inorganic structure is covered by the pixel defining portion, and the distance between this portion of the edge of the first inorganic structure and the first electrode is a first distance. At least a portion of the edge of the defined main body of the second inorganic structure is covered by the pixel defining portion, and the distance between this portion of the edge of the second inorganic structure and the first electrode is a second distance, wherein the first distance is not less than the second distance.

7. The display substrate according to claim 6, wherein, The first distance is greater than the second distance.

8. The display substrate according to claim 6 or 7, wherein, The first electrode overlapping the first inorganic structure and the first electrode overlapping the second inorganic structure have the defined opening. A portion of the edge of the defined main body of the first inorganic structure is exposed by the defined opening, and the distance between the defined opening and the pixel opening corresponding to the first inorganic structure is not less than the distance between the defined opening and the pixel opening corresponding to the second inorganic structure.

9. The display substrate according to any one of claims 6-8, wherein, The plurality of inorganic structures includes a third inorganic structure. The area of ​​the light-emitting region of the sub-pixel overlapping with the third inorganic structure is larger than the area of ​​the light-emitting region of the sub-pixel overlapping with the first inorganic structure, and smaller than the area of ​​the light-emitting region of the sub-pixel overlapping with the second inorganic structure. At least a portion of the edge of the defined main body portion of the third inorganic structure is exposed by the defined opening, and at least 50% of the edge of that portion is equidistant from the first electrode along its length direction.

10. The display substrate according to any one of claims 1-9, further comprising: At least one support structure is provided, the support structure being spaced apart from the first electrode of the sub-pixel in a direction parallel to the substrate, wherein the surface of the support structure away from the substrate is further away from the substrate than at least a portion of the surface of the pixel defining portion away from the substrate. The orthographic projection of the support structure on the substrate does not overlap with the orthographic projection of the defined opening on the substrate.

11. The display substrate according to claim 10, wherein, The plurality of sub-pixels includes a plurality of first sub-pixels, a plurality of second sub-pixels, and a plurality of third sub-pixels. The plurality of sub-pixels are arranged as a plurality of first sub-pixel groups and a plurality of second sub-pixel groups alternately arranged along a first arrangement direction. The first sub-pixel group includes first sub-pixels and second sub-pixels alternately arranged along a second arrangement direction. The second sub-pixel group includes the third sub-pixels arranged along the second arrangement direction. The first arrangement direction intersects with the second arrangement direction. The first sub-pixel group and the second sub-pixel group are staggered in the second arrangement direction, and at least some of the first sub-pixels are surrounded by eight sub-pixels, the eight sub-pixels including the alternately arranged third sub-pixels and second sub-pixels.

12. The display substrate according to claim 11, wherein, The first electrode of each sub-pixel includes an electrode body portion, at least a portion of which overlaps with the pixel opening corresponding to the sub-pixel. The support structure is surrounded by the electrode bodies of the multiple sub-pixels, and the orthographic projection of the support structure on the substrate does not overlap with the orthographic projection of the inorganic pattern on the substrate.

13. The display substrate according to claim 11, wherein, The first electrode of each sub-pixel includes an electrode body portion and an electrode connection portion connected to each other. At least a portion of the electrode body portion of the first electrode overlaps with the pixel opening corresponding to the sub-pixel. The electrode connection portion of the sub-pixel is connected to the pixel driving circuit through the first connection via. The support structure is surrounded by the electrode body portion of at least one of the sub-pixels and the electrode connection portion of at least another sub-pixel, and the orthographic projection of the support structure on the substrate at least partially overlaps with the orthographic projection of the inorganic pattern on the substrate.

14. The display substrate according to any one of claims 10-13, wherein, The minimum distance between the support structure and the defined opening is greater than 0 micrometers and less than 10 micrometers.

15. The display substrate according to any one of claims 10-13, wherein, The minimum distance between the support structure and the defined opening is greater than 2 micrometers.

16. The display substrate according to any one of claims 10-13, wherein, The cross-section of the support structure, which is cut by a plane parallel to the substrate, is circular, elliptical, or polygonal, and the straight-line distance between any two points on the edge of the cross-section is no greater than 20 micrometers.

17. The display substrate according to any one of claims 10-13, wherein, In the direction perpendicular to the substrate, the size of the support structure is no greater than 10 micrometers.

18. The display substrate according to any one of claims 10-13, wherein, The organic layer includes a second connection via, and the first connection via communicates with the second connection via. The first electrode of the sub-pixel is connected to the pixel driving circuit through the first connection via and the second connection via. The orthographic projection of the first connecting via on the substrate falls into the orthographic projection of the second connecting via on the substrate, and the orthographic projection area of ​​the first connecting via on the substrate is smaller than the orthographic projection area of ​​the second connecting via on the substrate.

19. The display substrate of claim 18, wherein, The straight-line distance between any two points on the edge of the cross-section of the first connection via, which is parallel to a plane of the substrate, is no greater than 6 micrometers; and / or The straight-line distance between any two points on the edge of the cross section of the second connecting via, which is cut by another plane parallel to the substrate, is no greater than 10 micrometers. 20.The display substrate of claim 10, wherein, The plurality of sub-pixels includes a plurality of first sub-pixels, a plurality of second sub-pixels, and a plurality of third sub-pixels, wherein the first sub-pixels, the second sub-pixels, and the third sub-pixels constitute a repeating unit. The first sub-pixel and the second sub-pixel in the repeating unit are arranged sequentially in the first arrangement direction, and the first sub-pixel and the second sub-pixel are located on one side of the third sub-pixel in the second arrangement direction, and the first arrangement direction intersects with the second arrangement direction. 21.The display substrate of claim 20, wherein, At least a portion of the edge of the defined main body of the inorganic structure overlapping with the first electrode of any one of the first sub-pixel, the second sub-pixel, and the third sub-pixel is exposed by the defined opening, and at least one of the defined openings has an "L"-shaped orthographic projection on the substrate.

22. The display substrate according to claim 20 or 21, wherein, In the first arrangement direction, two defined openings are provided on opposite sides of the light-emitting area of ​​the third sub-pixel, and the two defined openings are symmetrically distributed relative to the center plane of the substrate located between them and perpendicular to the center plane of the substrate.

23. The display substrate according to claim 20 or 21, wherein, The support structure and the third sub-pixel are spaced apart in the first arrangement direction, and the support structure and the third sub-pixel are located on the same side of the first sub-pixel and the second sub-pixel in the second arrangement direction. The defining main body portion corresponding to at least one of the first sub-pixel and the second sub-pixel in the repeating unit includes a protruding end relative to the third sub-pixel in the first arrangement direction, the protruding end at least partially overlapping the support structure in the second arrangement direction.

24. The display substrate according to any one of claims 1-10, wherein, The multiple sub-pixels are arranged into multiple sub-pixel rows and multiple sub-pixel columns. In a direction parallel to the substrate, the distance between adjacent defined openings between two adjacent sub-pixel rows is no greater than 40 micrometers, and the distance between adjacent defined openings between two adjacent sub-pixel columns is no greater than 40 micrometers.

25. The display substrate according to any one of claims 1-10, wherein, At least a portion of the edge of the defined body portion of each of the inorganic structures is covered by the pixel defining portion, and the size of the defining opening in its extending direction is no greater than 50 micrometers.

26. The display substrate according to any one of claims 1-10, wherein, The maximum dimension of the cross section of the defined opening cut by a plane parallel to the arrangement direction of the adjacent sub-pixels and perpendicular to the substrate direction in the arrangement direction of the adjacent sub-pixels is no greater than 10 micrometers.

27. A display panel comprising the display substrate according to any one of claims 1-26.

28. A display device comprising the display substrate according to any one of claims 1-26.

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