Display substrate and display device

Abstract

A display substrate and a display device are provided. The display substrate includes a plurality of sub-pixels arranged in an array along a first arrangement direction and a second arrangement direction on a substrate, the plurality of sub-pixels including a plurality of light emitting regions; a first electrode layer on the substrate, the first electrode layer including a plurality of anode structures; and a pixel defining layer on a side of the first electrode layer away from the substrate, the pixel defining layer including a plurality of openings to define the plurality of light emitting regions. For at least some of the plurality of sub-pixels, a planar projection of the opening of each sub-pixel on the substrate falls within a planar projection of the anode structure of the sub-pixel on the substrate, and a pattern of the planar projection of the opening of each sub-pixel on the substrate is different from a pattern shape of the planar projection of the anode structure of the sub-pixel on the substrate. A number of symmetry axes of the pattern of the planar projection of the anode structure of each sub-pixel on the substrate is greater than a number of symmetry axes of the pattern of the planar projection of the opening of the sub-pixel on the substrate.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of display, and in particular, to a display substrate and a display device. BACKGROUND

[0002] An organic light emitting display (OLED) is a self-luminous device with a series of advantages such as low energy consumption, self-luminous, high brightness, full view angle, fast response speed, flexible display, etc. In recent years, the OLED display device has been widely used in display devices of different sizes such as watches, mobile phones, computers, televisions, etc. The structure of the OLED display device mainly includes a substrate and a plurality of sub-pixels arranged in an array on the substrate.

[0003] The above information disclosed in this section is only for the purpose of understanding the background of the technical concept of the present disclosure, and therefore, the above information can contain information that does not constitute the prior art. SUMMARY

[0004] In one aspect, a display substrate is provided, comprising: a substrate; a plurality of sub-pixels arranged in an array on the substrate along a first arrangement direction and a second arrangement direction, the plurality of sub-pixels comprising a plurality of light emitting regions; a first electrode layer on the substrate, the first electrode layer comprising a plurality of anode structures; and a pixel defining layer on a side of the first electrode layer distal to the substrate, the pixel defining layer comprising a plurality of openings to define the plurality of light emitting regions, wherein for at least some of the plurality of sub-pixels, a projection of the opening of each sub-pixel on the substrate falls within a projection of the anode structure of the sub-pixel on the substrate, a pattern of the projection of the opening of each sub-pixel on the substrate is different from a pattern shape of the projection of the anode structure of the sub-pixel on the substrate, and a number of symmetry axes of the pattern of the projection of the anode structure of each sub-pixel on the substrate is greater than a number of symmetry axes of the pattern of the projection of the opening of the sub-pixel on the substrate.

[0005] According to some exemplary embodiments, for at least some of the plurality of sub-pixels, a pattern of the projection of the anode structure of each sub-pixel on the substrate is non-isometrically enlarged relative to a pattern of the projection of the opening of the sub-pixel on the substrate.

[0006] According to some exemplary embodiments, for at least some of the plurality of sub-pixels, a geometric center of a pattern of a normal projection of the anode structure of each sub-pixel on the substrate does not coincide with a geometric center of a pattern of a normal projection of the opening of the sub-pixel on the substrate.

[0007] According to some exemplary embodiments, for at least some of the plurality of sub-pixels, a geometric center of a pattern of a normal projection of the anode structure of at least one sub-pixel on the substrate is offset from a geometric center of a pattern of a normal projection of the opening of the sub-pixel on the substrate in a first arrangement direction; and / or, a geometric center of a pattern of a normal projection of the anode structure of at least one sub-pixel on the substrate is offset from a geometric center of a pattern of a normal projection of the opening of the sub-pixel on the substrate in a second arrangement direction.

[0008] According to some exemplary embodiments, for at least some of the plurality of sub-pixels, a geometric center of a pattern of a normal projection of the anode structure of at least one sub-pixel on the substrate is offset from a geometric center of a pattern of a normal projection of the opening of the sub-pixel on the substrate in a first direction, the first direction being oblique with respect to each of the first arrangement direction and the second arrangement direction; and / or, for at least some of the plurality of sub-pixels, a geometric center of a pattern of a normal projection of the anode structure of at least one sub-pixel on the substrate is offset from a geometric center of a pattern of a normal projection of the opening of the sub-pixel on the substrate in a second direction, the second direction being oblique with respect to each of the first arrangement direction and the second arrangement direction, the second direction having an included angle with the first direction.

[0009] According to some exemplary embodiments, the pattern of the normal projection of the opening of the sub-pixel on the substrate has a first axis of symmetry, a first vertex and a second vertex, the first vertex and the second vertex are both located on the first axis of symmetry, the first vertex and the second vertex are oppositely arranged; the first axis of symmetry has a first intersection point and a second intersection point with the pattern of the normal projection of the anode structure of the sub-pixel on the substrate, the first intersection point is adjacent to the first vertex, the second intersection point is adjacent to the second vertex; and in an extension direction of the first axis of symmetry, a first distance between the first vertex and the first intersection point is not equal to a second distance between the second vertex and the second intersection point.

[0010] According to some exemplary embodiments, in the first cross-sectional view, the pixel-defining layers on both sides of the opening of the sub-pixel cover a portion of the anode structure of the sub-pixel, the width of the portion of the anode structure covered by the pixel-defining layer on one side of the opening of the sub-pixel is not equal to the width of another portion of the anode structure covered by the pixel-defining layer on the other side of the opening of the sub-pixel, wherein the first cross-section contacts the surface of the pixel-defining layer perpendicularly to the first electrode layer, and the first axis of symmetry is located in the first cross-section.

[0011] According to some exemplary embodiments, the plurality of sub-pixels comprises an n-th row of sub-pixels and an n+2-th row of sub-pixels, the n-th row of sub-pixels and the n+2-th row of sub-pixels are arranged along a second arrangement direction, and the n-th row of sub-pixels comprises a first sub-pixel, the n+2-th row of sub-pixels comprises a second sub-pixel, the second sub-pixel is one of the plurality of sub-pixels of the n+2-th row of sub-pixels that is most adjacent to the first sub-pixel and is of the same color as the first sub-pixel in the first arrangement direction, a pattern of a projection of the opening of the first sub-pixel on the substrate is not translationally coincident with a pattern of a projection of the opening of the second sub-pixel on the substrate, and a pattern of a projection of the anode structure of the first sub-pixel on the substrate is translationally coincident with a pattern of a projection of the anode structure of the second sub-pixel on the substrate.

[0012] According to some exemplary embodiments, among the sub-pixels of the same color in the n-th row of sub-pixels and the n+2-th row of sub-pixels, a pattern of a projection of the opening of at least a portion of the sub-pixels on the substrate is not translationally coincident with a pattern of a projection of another portion of the sub-pixels on the substrate, and a pattern of a projection of the anode structure of all the sub-pixels on the substrate is translationally coincident.

[0013] According to some exemplary embodiments, the plurality of sub-pixels comprises an m-th column of sub-pixels and an m+2-th column of sub-pixels, the m-th column of sub-pixels and the m+2-th column of sub-pixels are arranged along a first arrangement direction, and the m-th column of sub-pixels comprises a third sub-pixel, the m+2-th column of sub-pixels comprises a fourth sub-pixel, the fourth sub-pixel is one of the plurality of sub-pixels of the m+2-th column of sub-pixels that is most adjacent to the third sub-pixel and is of the same color as the third sub-pixel in the second arrangement direction, a pattern of a projection of the opening of the third sub-pixel on the substrate is not translationally coincident with a pattern of a projection of the opening of the fourth sub-pixel on the substrate, and a pattern of a projection of the anode structure of the third sub-pixel on the substrate is translationally coincident with a pattern of a projection of the anode structure of the fourth sub-pixel on the substrate.

[0014] According to some exemplary embodiments, in the same color sub-pixels of the mth column of sub-pixels and the m+2th column of sub-pixels, the pattern of the orthographic projection of the opening of at least one part of the sub-pixels on the substrate is non-translational coincidence with the pattern of the orthographic projection of the opening of another part of the sub-pixels on the substrate, and the pattern of the orthographic projection of the anode structure of all the sub-pixels on the substrate is translational coincidence.

[0015] According to some exemplary embodiments, for at least one same color of sub-pixels in the plurality of sub-pixels, the arrangement pitch of the pattern of the orthographic projection of the openings of the plurality of same color of sub-pixels on the substrate in the first arrangement direction is a first arrangement pitch, and the arrangement pitch of the pattern of the orthographic projection of the anode structures of the plurality of same color of sub-pixels on the substrate in the first arrangement direction is a second arrangement pitch, the first arrangement pitch being greater than the second arrangement pitch; and / or, for at least one same color of sub-pixels in the plurality of sub-pixels, the arrangement pitch of the pattern of the orthographic projection of the openings of the plurality of same color of sub-pixels on the substrate in the second arrangement direction is a third arrangement pitch, and the arrangement pitch of the pattern of the orthographic projection of the anode structures of the plurality of same color of sub-pixels on the substrate in the second arrangement direction is a fourth arrangement pitch, the third arrangement pitch being greater than the fourth arrangement pitch; and / or, for at least one same color of sub-pixels in the plurality of sub-pixels, the arrangement pitch of the pattern of the orthographic projection of the openings of the plurality of same color of sub-pixels on the substrate in the first direction is a first pitch, and the arrangement pitch of the pattern of the orthographic projection of the anode structures of the plurality of same color of sub-pixels on the substrate in the first direction is a second pitch, the first pitch being greater than the second pitch; and / or, for at least one same color of sub-pixels in the plurality of sub-pixels, the arrangement pitch of the pattern of the orthographic projection of the openings of the plurality of same color of sub-pixels on the substrate in the second direction is a third pitch, and the arrangement pitch of the pattern of the orthographic projection of the anode structures of the plurality of same color of sub-pixels on the substrate in the second direction is a fourth pitch, the third pitch being greater than the fourth pitch.

[0016] According to some exemplary embodiments, the first arrangement pitch is m times of the second arrangement pitch, m being greater than or equal to 1.5; and / or, the third arrangement pitch is n times of the fourth arrangement pitch, n being greater than or equal to 1.5; and / or, the first pitch is p times of the second pitch, p being greater than or equal to 1.5; and / or, the third pitch is q times of the fourth pitch, q being greater than or equal to 1.5.

[0017] According to some exemplary embodiments, for at least some of the plurality of sub-pixels, a shape of a normal projection of an opening of each of the sub-pixels on the substrate is a shape of a polygon with at least one corner cut off; and a shape of a normal projection of an anode structure of each of the sub-pixels on the substrate is the polygon or a circle.

[0018] According to some exemplary embodiments, the shape of the opening having a shape of a polygon with at least one corner cut off includes a plurality of corners, the plurality of corners including a first corner and a second corner, the first corner being a corner formed after a corner of the polygon is cut off by two sides, the second corner being a corner opposite to the first corner.

[0019] According to some exemplary embodiments, the shape of the opening having a shape of a polygon with at least one corner cut off has a first axis of symmetry, a first vertex and a second vertex, the first vertex being a point where the first axis of symmetry intersects the first corner, the second vertex being a point where the first axis of symmetry intersects the second corner; the first axis of symmetry and a shape of a normal projection of an anode structure of the sub-pixel on the substrate has a first intersection point and a second intersection point, the first intersection point being adjacent to the first vertex, the second intersection point being adjacent to the second vertex; and in a direction of extension of the first axis of symmetry, a first distance between the first vertex and the first intersection point is greater than a second distance between the second vertex and the second intersection point.

[0020] According to some exemplary embodiments, the opening having the first corner is configured to define a light-emitting region of at least one color sub-pixel.

[0021] According to some exemplary embodiments, the opening having the first corner and being configured to define a light-emitting region of a same color sub-pixel includes at least two types of openings, in different types of openings, a vertex of the first corner points to a direction opposite to a vertex of the second corner; and shapes of normal projections of respective anode structures on the substrate are translationally coincident.

[0022] According to some exemplary embodiments, the at least two types of openings include a first type of opening, a second type of opening, a third type of opening and a fourth type of opening; in the first type of opening and the second type of opening, a vertex of the first corner points to a direction opposite to a vertex of the second corner, in the third type of opening and the fourth type of opening, a vertex of the first corner points to a direction opposite to a vertex of the second corner; and shapes of normal projections of respective anode structures on the substrate are translationally coincident.

[0023] According to some exemplary embodiments, for the nth row of sub-pixels and the (n+2)th row of sub-pixels, in the nth row of sub-pixels, the first type of openings and the second type of openings are alternately arranged in the first arrangement direction; in the (n+2)th row of sub-pixels, the third type of openings and the fourth type of openings are alternately arranged in the first arrangement direction; and / or, for the mth column of sub-pixels and the (m+2)th column of sub-pixels, in the mth column of sub-pixels, the first type of openings and the second type of openings are alternately arranged in the second arrangement direction; in the (m+2)th column of sub-pixels, the third type of openings and the fourth type of openings are alternately arranged in the second arrangement direction.

[0024] According to some exemplary embodiments, for at least one first type of opening, two openings adjacent to the first type of opening in the first arrangement direction are second type of openings, two openings adjacent to the first type of opening in the second arrangement direction are second type of openings, two openings adjacent to the first type of opening in the first direction are third type of openings, and two openings adjacent to the first type of opening in the second direction are fourth type of openings.

[0025] According to some exemplary embodiments, for at least some first color sub-pixels of the plurality of sub-pixels, the opening of each sub-pixel includes a main part and an auxiliary part, the main part of the opening has a circular orthographic projection on the substrate, and the auxiliary part of the opening has a projection on the substrate in the second direction relative to the circle; and the anode structure covering the opening having the main part and the auxiliary part includes one main part and two auxiliary parts, the main part of the anode structure has a circular orthographic projection on the substrate, and the two auxiliary parts of the anode structure have respective projections on the substrate in the second direction relative to the circle in opposite directions.

[0026] According to some exemplary embodiments, the openings of the at least some first color sub-pixels include at least two types of openings, in different types of openings, the auxiliary part of the opening has a different projection direction relative to the main part of the opening, and the patterns of the orthographic projections of the respective anode structures covering different types of openings are translationally coincident.

[0027] According to some exemplary embodiments, the at least two types of openings include a first type of opening and a second type of opening; the auxiliary parts of the first type of opening and the second type of opening have opposite projection directions relative to the main parts; and the patterns of the orthographic projections of the respective anode structures covering the first type of opening and the second type of opening are translationally coincident.

[0028] According to some exemplary embodiments, for at least some third color sub-pixels of the plurality of sub-pixels, the opening of each sub-pixel comprises a main portion and an auxiliary portion, the main portion of the opening has a circular shape in a projection on the substrate, and the auxiliary portion of the opening protrudes in a first direction relative to the circular shape in the projection on the substrate; and the anode structure covering the opening with the main portion and the auxiliary portion comprises one main portion and two auxiliary portions, the main portion of the anode structure has a circular shape in a projection on the substrate, and the two auxiliary portions of the anode structure protrude in the first direction respectively towards opposite directions relative to the circular shape in the projection on the substrate.

[0029] According to some exemplary embodiments, the openings of the at least some third color sub-pixels comprise at least two types of openings, in different types of openings, the auxiliary portion of the opening protrudes in a different direction relative to the main portion of the opening, and the patterns of the projections on the substrate of the respective anode structures covering different types of openings are translationally coincident.

[0030] According to some exemplary embodiments, the at least two types of openings comprise a third type of opening and a fourth type of opening; the protruding directions of the auxiliary portions relative to the main portions in the third type of opening and the fourth type of opening are opposite; and the patterns of the projections on the substrate of the respective anode structures covering the third type of opening and the fourth type of opening are translationally coincident.

[0031] According to some exemplary embodiments, for the nth row of sub-pixels and the nth+2 row of sub-pixels, all first color sub-pixels in the nth row of sub-pixels comprise the first type of opening, and all first color sub-pixels in the nth+2 row of sub-pixels comprise the second type of opening; and / or, for the mth column of sub-pixels and the mth+2 column of sub-pixels, all first color sub-pixels in the mth column of sub-pixels comprise the first type of opening, and all first color sub-pixels in the mth+2 column of sub-pixels comprise the second type of opening; and / or, in at least one row of first color sub-pixels arranged along the second direction, the first type of opening and the second type of opening are alternately arranged along the second direction.

[0032] According to some exemplary embodiments, for the nth row of sub-pixels and the nth+2 row of sub-pixels, all third color sub-pixels in the nth row of sub-pixels comprise third type openings, and all third color sub-pixels in the nth+2 row of sub-pixels comprise fourth type openings; and / or, for the mth column of sub-pixels and the mth+2 column of sub-pixels, all third color sub-pixels in the mth column of sub-pixels comprise third type openings, and all third color sub-pixels in the mth+2 column of sub-pixels comprise fourth type openings; and / or, in at least one row of third color sub-pixels arranged along the first direction, the third type openings and the fourth type openings are alternately arranged along the first direction.

[0033] According to some exemplary embodiments, a pattern of a footprint on the substrate of at least one of the first type openings and the second type openings is symmetrical only with respect to a first axis of symmetry extending along the second direction; a pattern of a footprint on the substrate of each anode structure covering the first type openings and the second type openings is symmetrical with respect to both the first axis of symmetry extending along the second direction and a second axis of symmetry extending along the first direction; and / or, a pattern of a footprint on the substrate of at least one of the third type openings and the fourth type openings is symmetrical only with respect to the second axis of symmetry extending along the first direction; a pattern of a footprint on the substrate of each anode structure covering the third type openings and the fourth type openings is symmetrical with respect to both the second axis of symmetry extending along the first direction and the first axis of symmetry extending along the second direction.

[0034] According to some exemplary embodiments, for at least some of the plurality of sub-pixels, a pattern of a footprint on the substrate of an opening of each sub-pixel is a polygon having a first vertex and a first side opposite to the first vertex; a pattern of a footprint on the substrate of an anode structure of the each sub-pixel is a rectangle.

[0035] According to some exemplary embodiments, the openings having the first vertex and configured to define a light-emitting area of a same color sub-pixel comprise at least two types of openings, in different types of openings, a direction in which the first vertex of the first vertex points to a first side opposite to the first vertex is different; and a pattern of a footprint on the substrate of each anode structure covering different types of openings is translationally coincident.

[0036] According to some exemplary embodiments, for the nth row of sub-pixels and the (n+1)th row of sub-pixels, in the nth row of sub-pixels, the same type of openings in the at least two types of openings are arranged in the first arrangement direction; in the (n+1)th row of sub-pixels, the same type of openings in the at least two types of openings are arranged in the first arrangement direction; and for the nth row of sub-pixels and the (n+1)th row of sub-pixels, the anode structures of two sub-pixels in the same column are in translational coincidence.

[0037] According to some exemplary embodiments, for at least some of the plurality of sub-pixels, each sub-pixel has openings exhibiting mirror-arranged two sub-openings, the anode structure of the sub-pixel in orthographic projection on the substrate covers orthographic projections of the mirror-arranged two sub-openings on the substrate; each of the two sub-openings in orthographic projection on the substrate has a polygonal shape, the polygonal shape has a first vertex and a first side, the first side is opposite to the first vertex.

[0038] According to some exemplary embodiments, the openings having the first vertex and configured to define the light-emitting region of the same color sub-pixel include at least two types of openings, in different types of openings, the vertex of the first vertex points to a direction different from that of the first side opposite thereto; and the anode structures covering different types of openings in orthographic projection on the substrate are in translational coincidence.

[0039] According to some exemplary embodiments, for the nth row of sub-pixels and the (n+2)th row of sub-pixels, in the nth row of sub-pixels, the same type of openings in the at least two types of openings are arranged in the first arrangement direction; in the (n+2)th row of sub-pixels, the same type of openings in the at least two types of openings are arranged in the first arrangement direction; and for the nth row of sub-pixels and the (n+2)th row of sub-pixels, the anode structures of two sub-pixels in the same column are in translational coincidence.

[0040] In yet another aspect, a display device is provided, wherein the display device includes a display substrate as described above. BRIEF DESCRIPTION OF DRAWINGS

[0041] The features and advantages of the present disclosure will become more apparent from the detailed description of example embodiments of the present disclosure with reference to the attached drawings.

[0042] FIG. 1A is a plan view schematic diagram of a display device according to some exemplary embodiments of the present disclosure, wherein the plan view structure of a display substrate included in the display device is schematically shown.

[0043] FIG. 1BThe display device is based on some exemplary embodiments of the present disclosure. FIG. 1A A schematic diagram of the cross section intercepted by line AA' in the diagram.

[0044] FIG. 2A This is a partial schematic diagram illustrating the sub-pixel arrangement of a display substrate in a display area according to some exemplary embodiments of the present disclosure.

[0045] FIG. 2B for FIG. 2A A magnified view of a single subpixel in the image.

[0046] FIG. 2C For along FIG. 2B A schematic cross-sectional view of line BB' in the diagram.

[0047] FIG. 3 Schematic illustration FIG. 2A Simulation results of interference fringes in the illustrated embodiment.

[0048] FIG. 4A This is a partial schematic diagram illustrating the sub-pixel arrangement of a display substrate in a display area according to some exemplary embodiments of the present disclosure.

[0049] FIG. 4B for FIG. 4A A magnified view of a single subpixel in the image.

[0050] FIG. 4C For along FIG. 4B A schematic cross-sectional view of the line CC' in the diagram.

[0051] FIG. 5 for FIG. 4A A magnified view of the opening of a single subpixel shown.

[0052] FIG. 6 Schematic illustration FIG. 4A Simulation results of interference fringes in the illustrated embodiment.

[0053] FIG. 7 This is a partial schematic diagram illustrating a specific structure of a display substrate anode according to some exemplary embodiments of the present disclosure.

[0054] FIG. 8A This is a partial schematic diagram illustrating the subpixel arrangement of a display substrate in a display area according to some other exemplary embodiments of the present disclosure.

[0055] FIG. 8B to FIG. 8D These are magnified views of individual sub-pixels in the display area of ​​a display substrate according to other exemplary embodiments of the present disclosure.

[0056] FIG. 9AFIG. 6 is a partial schematic view schematically showing a sub-pixel arrangement manner of a display substrate in a display area according to some exemplary embodiments of the present disclosure.

[0057] FIG. 9B FIG. 7 is an enlarged view of a single sub-pixel in FIG. 6. FIG. 9A

[0058] FIG. 10A FIG. 8 is a partial schematic view schematically showing a sub-pixel arrangement manner of a display substrate in a display area according to some exemplary embodiments of the present disclosure.

[0059] FIG. 10B FIG. 9 is an enlarged view of a single sub-pixel in FIG. 8. FIG. 10A

[0060] FIG. 11A FIG. 10 is a partial schematic view schematically showing a sub-pixel arrangement manner of a display substrate in a display area according to some exemplary embodiments of the present disclosure.

[0061] FIG. 11B FIG. 11 is an enlarged view of a single sub-pixel in FIG. 10. FIG. 11A

[0062] FIG. 12 is a cross-sectional schematic view taken along line AA' in FIG. 11, which schematically shows a specific structure of a display substrate according to some exemplary embodiments of the present disclosure. FIG. 12 FIG. 1A

[0063] FIG. 13 FIG. 13 is an equivalent circuit diagram of a pixel driving circuit of a display substrate according to some exemplary embodiments of the present disclosure. DETAILED DESCRIPTION

[0064] In order to make the purposes, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are some but not all of the embodiments of the present disclosure. Based on the described embodiments of the present disclosure, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the protection scope of the present disclosure.

[0065] It should be noted that in the drawings, the size and relative size of elements can be exaggerated and / or simplified for the sake of clarity and / or description. Thus, the size and relative size of the elements in the drawings are not necessarily to scale. In the description and drawings, identical or similar reference signs indicate identical or similar parts.

[0066] ​​​​When an element is described as being "on" another element, "connected to" another element, or "coupled to" another element, it can be directly on, directly connected to, or directly coupled to the other element, or intervening elements can be present. In contrast, when an element is described as being "directly on," "directly connected to," or "directly coupled to" another element, there are no intervening elements present. Other terms of description used herein, such as "between," "directly between," "adjacent to," "directly adjacent to," or "on" can be interpreted in a like fashion. In addition, the term "connected" can refer to physical or electrical connectivity, communicative connectivity, and / or fluidic connectivity. Furthermore, the X-axis, Y-axis, and Z-axis are not limited to the three axes of a Cartesian coordinate system and can be interpreted in a broader sense. For example, the X-axis, Y-axis, and Z-axis can be perpendicular to each other, or can represent different directions that are not perpendicular to each other. For the purposes of the present disclosure, "at least one of X, Y, and Z" and "at least one selected from the group consisting of X, Y, and Z" can be interpreted to include only X, only Y, only Z, or any combination of two or more of X, Y, and Z such as XYZ, XY, YZ, and XZ. As used herein, the term "and / or" includes any and all combinations of one or more of the associated items.

[0067] It should be noted that, although the terms "first," "second," etc. can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. Rather, these terms are used only to distinguish one element, component, region, layer and / or section from another element, component, region, layer and / or section. Thus, a first element, component, region, layer and / or section discussed below could be termed a second element, component, region, layer and / or section without departing from the teachings of the present disclosure.

[0068] Spatially relative terms, such as "on", "above", "left", "right", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if a device described is turned over, elements described as "below" or "under" other elements or features would then be oriented "above" the other elements or features. Likewise, if devices are turned over, elements described as "above" other elements or features would then be oriented "below" the other elements or features.

[0069] In the present text, the expression "repetition unit" can mean that at least two or more units are provided in the display substrate and the units are immediately repeated. The repetition unit can mean a combination of a plurality of sub-pixels, for example, a combination of a plurality of sub-pixels used to display one pixel point. A plurality of "repetition units" are arranged in an array on the substrate. For example, one repetition unit can include at least one pixel, for example, can include 2, 3, 4, or more sub-pixels. In addition, in the present text, for the convenience of description, the repetition unit located in the first display area is referred to as the first repetition unit, and the repetition unit located in the second display area is referred to as the second repetition unit. In the present text, the expression "repetition unit" can also be referred to as "pixel structure".

[0070] In the present text, the expression "pixel density" means the number of repetition units or sub-pixels per unit area. Similarly, the expression "distribution density" means the number of components (such as repetition units, sub-pixels, spacers, etc.) per unit area.

[0071] In the present text, unless otherwise specifically stated, the expression "opening" means the opening of the pixel defining layer in each sub-pixel, which exposes at least a part of the anode structure of the light emitting device of the sub-pixel, and at least a part of the light emitting layer of the light emitting device is also located in the opening, that is, the opening corresponds to the light emitting area of the sub-pixel.

[0072] In the present text, unless otherwise specifically stated, the expression "center of the opening" means the geometric center or the center of gravity of the orthographic projection of the opening on the substrate. For example, in the case of a circular opening, the center of the opening is the center of the circle; in the case of an elliptical opening, the center of the opening is the center of the ellipse, that is, the intersection of the major axis and the minor axis of the ellipse; in the case of a rectangular opening, the center of the opening is the center of the rectangle, that is, the intersection of the two diagonals of the rectangle.

[0073] In the present text, unless otherwise specifically stated, the expression "A and B are substantially located on the same straight line extending in parallel to the first arrangement direction" includes the following cases: A and B are located on the same straight line extending in parallel to the first arrangement direction; A and B have a certain error in the direction perpendicular to the first arrangement direction, and the error is less than or equal to ±5 microns.

[0074] In the present text, unless otherwise specifically stated, the "distance between the first opening and the second opening" and similar expressions mean the distance between the center of the first opening and the center of the second opening, and the "separation distance between the first opening and the second opening" and similar expressions mean the distance between the edge of the first opening closest to the second opening and the edge of the second opening closest to the first opening.

[0075] It should be understood that "translation of a figure" means that in a plane, a figure is moved a certain distance along a certain direction, and such a figure movement is called translation. After a figure is translated, a new figure is obtained, and this figure can coincide with the original figure, only the position is changed. In other words, in a plane, a figure and another figure can coincide with each other only by translation movement, and it can be considered that the two figures are translationally coincident. Accordingly, in a plane, a figure and another figure cannot coincide with each other only by translation movement, and it can be considered that the two figures are not translationally coincident.

[0076] "Rotation of a figure" means that in a plane, a figure is rotated around a fixed point by a certain direction by a certain angle, and such a figure movement is called rotation of the figure. The fixed point is called the center of rotation, and the angle of rotation is called the angle of rotation. Rotation does not change the shape and size of the figure. In a plane, a figure and another figure can coincide with each other by translation and rotation movement, and it can be considered that the two figures are not translationally coincident, but rotationally coincident.

[0077] In this article, unless otherwise specified, "different shapes of figures" means that the shapes of two figures are different; if the shapes of two figures are the same, but the areas are different, it does not belong to the case of "different shapes of figures". For example, two figures are neither translationally coincident nor rotationally coincident.

[0078] In this document, for the convenience of description, directional expressions such as "first arrangement direction", "second arrangement direction", "first direction", "second direction" are used, for example, "first arrangement direction X", "second arrangement direction Y", "first direction M1", "second direction M2", exemplarily, the first arrangement direction X and the second arrangement direction Y can be used to represent the arrangement direction of each sub-pixel, which can be parallel to the direction of the geometric center line of the light-emitting area of the adjacent two sub-pixels, or can not be parallel. For example, the first arrangement direction intersects the second arrangement direction. For example, the included angle between the first arrangement direction and the second arrangement direction can be 80-100 degrees. For example, the included angle between the first arrangement direction and the second arrangement direction can be 85-95 degrees. For example, the first arrangement direction and the second arrangement direction can be perpendicular, but not limited thereto, and can also not be perpendicular. In the embodiments of the present disclosure, the first arrangement direction and the second arrangement direction can be interchangeable. The first direction M1 and the second direction M2 can be used to represent the direction intersecting the first arrangement direction X and the second arrangement direction Y, it should be understood that the first direction M1 and the second direction M2 can also be used to represent the arrangement direction of each sub-pixel, which can be parallel to the direction of the geometric center line of the light-emitting area of the adjacent two sub-pixels, or can not be parallel. For example, the first direction intersects the second direction. For example, the included angle between the first direction and the second direction can be 80-100 degrees. For example, the included angle between the first direction and the second direction can be 85-95 degrees. For example, the first direction and the second direction can be perpendicular, but not limited thereto, and can also not be perpendicular. In the embodiments of the present disclosure, the first direction and the second direction can be interchangeable. For example, in the embodiments of the present disclosure, exemplarily, the first arrangement direction X and the second arrangement direction Y can represent the row direction and the column direction respectively, both of which are perpendicular to each other; the first direction M1 and the second direction M2 are perpendicular to each other, and they are respectively about 45° with the first arrangement direction X and the second arrangement direction Y.

[0079] Embodiments of the present disclosure provide a display substrate, comprising: a substrate substrate; a plurality of sub-pixels arranged in an array on the substrate substrate along a first arrangement direction and a second arrangement direction, the plurality of sub-pixels comprising a plurality of light-emitting regions; a first electrode layer on the substrate substrate, the first electrode layer comprising a plurality of anode structures; and a pixel defining layer on a side of the first electrode layer away from the substrate substrate, the pixel defining layer comprising a plurality of openings to define the plurality of light-emitting regions, wherein for at least some of the plurality of sub-pixels, a projection of the opening of each sub-pixel on the substrate substrate falls within a projection of the anode structure of the sub-pixel on the substrate substrate, a pattern of the projection of the opening of each sub-pixel on the substrate substrate is different from a pattern shape of the projection of the anode structure of the sub-pixel on the substrate substrate, and a number of symmetry axes of the pattern of the projection of the anode structure of each sub-pixel on the substrate substrate is greater than a number of symmetry axes of the pattern of the projection of the opening of the sub-pixel on the substrate substrate. In embodiments of the present disclosure, for the opening or the light-emitting region with a special shape, the corresponding anode structure is designed to be of the same shape, which can reduce the arrangement period (i.e. arrangement pitch) of the anode structure, so that the interference fringes are invisible to the human eye, thereby significantly improving the use experience of the display substrate.

[0080] FIG. 1A is a plan view of a display device according to some example embodiments of the present disclosure, schematically showing a plan structure of a display substrate included in the display device. FIG. 1B is a cross-sectional view of the display device according to some example embodiments of the present disclosure, taken along line AA’ in FIG. 1A .

[0081] As shown in FIG. 1A , a display device according to embodiments of the present disclosure includes a display substrate 10. The display substrate 10 includes a display area, which can include a display area AA. For example, the display area AA can be circular, elliptical, or rectangular in shape, but embodiments of the present disclosure are not limited thereto. For another example, the display area AA can be rectangular, rounded rectangular, or other suitable shape.

[0082] As shown in FIG. 1B , the display substrate 10 can include a substrate substrate 1 and a plurality of pixel units disposed on the substrate substrate 1, each pixel unit can include a plurality of sub-pixels.

[0083] In the display substrate shown in FIG. 1A to FIG. 1B , OLED display technology can be used. Due to the advantages of wide viewing angle, high contrast, fast response, low power consumption, foldable, flexible, etc., OLED display substrate is increasingly widely used in display products.

[0084] For example, the display substrate 10 may further include a driving circuit layer, a light-emitting device layer, and an encapsulation layer disposed on the substrate 1. For example, FIG. 1B The diagram schematically illustrates a pixel driving circuit layer 3, a light-emitting device layer 4, and an encapsulation layer 5. The pixel driving circuit layer 3 includes a pixel driving circuit structure, and the light-emitting device layer 4 includes light-emitting devices such as those used in OLEDs. The pixel driving circuit structure controls the light-emitting devices of each sub-pixel to emit light, thereby achieving a display function. This pixel driving circuit structure includes thin-film transistors, storage capacitors, and various signal lines. These signal lines include gate lines, data lines, ELVDD power lines, and ELVSS power lines, etc., to provide control signals, data signals, power supply voltages, and other signals to the pixel driving circuit in each sub-pixel.

[0085] FIG. 2A This is a partial schematic diagram illustrating the sub-pixel arrangement of a display substrate in a display area according to some exemplary embodiments of the present disclosure. FIG. 2B for FIG. 2A A magnified view of a single subpixel in the image. FIG. 2C For along FIG. 2B A schematic cross-sectional view of line BB' in the diagram. FIG. 3 Schematic illustration FIG. 2A Simulation results of interference fringes in the illustrated embodiment.

[0086] like FIG. 2A As shown, the display substrate 10 includes a plurality of sub-pixels. For example, the plurality of sub-pixels includes a plurality of first-color sub-pixels SP1, a plurality of second-color sub-pixels SP2, and a plurality of third-color sub-pixels SP3. The plurality of first-color sub-pixels SP1 and the plurality of third-color sub-pixels SP3 are arranged along a first arrangement direction (e.g., ...). FIG. 2A The X direction (also known as the row direction) is alternately arranged to form the first pixel row 01. Multiple second color sub-pixels SP2 are arranged along the first arrangement direction X to form the second pixel row 02. The first pixel row 01 and the second pixel row 02 are arranged along a second arrangement direction that intersects the first arrangement direction X (e.g., ...). FIG. 2A The Y-direction (also known as the column direction) shown is alternately arranged and staggered from each other in the first arrangement direction X. For example, adjacent first color sub-pixels SP1 and second color sub-pixels SP2 are arranged along the first direction M1, which intersects both the first arrangement direction X and the second arrangement direction Y. FIG. 2AAs shown, the plurality of first color sub-pixels SP1 and the plurality of third color sub-pixels SP3 are alternately arranged along the second arrangement direction Y to form a plurality of first pixel columns 03, the plurality of second color sub-pixels SP2 are arranged along both the first arrangement direction X and the second arrangement direction Y to form a plurality of second pixel rows 02 and a plurality of second pixel columns 04, the plurality of first pixel columns 03 and the plurality of second pixel columns 04 are alternately arranged along the first arrangement direction X and staggered with each other along the second arrangement direction Y, that is, a second pixel row 02 where a second color sub-pixel SP2 is located is between two adjacent first pixel rows 01, and a second pixel column 04 where the second color sub-pixel SP2 is located is between two adjacent first pixel columns 03.

[0087] As shown, FIG. 2A As shown, the display substrate includes a plurality of repeating units A arranged in an array, each repeating unit A includes two rows and four columns of sub-pixels, that is, each repeating unit A includes one first color sub-pixel SP1, one third color sub-pixel SP3, and two second color sub-pixels SP2, the first color sub-pixel SP1 and the third color sub-pixel SP3 are shared sub-pixels, and through a virtual algorithm, the four sub-pixels can realize the display of two virtual pixel units. For example, in the same row of repeating units, the first color sub-pixel SP1 in the second repeating unit, the third color sub-pixel SP3 in the first repeating unit, and the second color sub-pixel SP2 in the first repeating unit close to the second repeating unit form a virtual pixel unit, and at the same time, the first color sub-pixel SP1 in the second repeating unit also forms a virtual pixel unit with the third color sub-pixel SP3 in the repeating unit and the second color sub-pixel SP2 in the repeating unit close to the first repeating unit; in addition, the third color sub-pixel SP3 in the second repeating unit also forms a virtual pixel unit with another second color sub-pixel SP2 in the repeating unit and the first color sub-pixel SP1 in the third repeating unit, thereby effectively improving the resolution of the display substrate.

[0088] The sub-pixel in the embodiment of the present disclosure refers to a light-emitting device structure, the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel are sub-pixels emitting light of different colors. The embodiment of the present disclosure takes the first color sub-pixel as a red sub-pixel, the second color sub-pixel as a green sub-pixel, and the third color sub-pixel as a blue sub-pixel as an example for description. However, the first color sub-pixel as a red sub-pixel, the second color sub-pixel as a green sub-pixel, and the third color sub-pixel as a blue sub-pixel do not constitute a limitation to the protection scope of the embodiment of the present disclosure.

[0089] For example, the first color sub-pixel SP1 and the third color sub-pixel SP3 are shared sub-pixels, and according to the light-emitting spectrum of the two, the area of the light-emitting region of the two is greater than that of the second color sub-pixel SP2.

[0090] For example, the area of the light emitting region of the at least one blue sub-pixel is greater than the area of the light emitting region of the at least one red sub-pixel, and the area of the light emitting region of the at least one red sub-pixel is greater than the area of the light emitting region of the at least one green sub-pixel, so as to prolong the service life of the display substrate. For example, the areas of the light emitting regions of the sub-pixels of the same color are substantially equal.

[0091] It should be noted that, in FIG. 2A and similar figures below, the innermost figure represents the opening or light emitting region of a sub-pixel, and the figure with an area greater than that of the opening or light emitting region of the sub-pixel and substantially surrounding the contour of the opening is the contour line of the anode structure of the sub-pixel.

[0092] As FIG. 2A indicated, each sub-pixel includes a light emitting region 200. For example, the display substrate 10 includes a pixel defining layer 8 disposed on the substrate 1 (refer to FIG. 12 ), the shape of the light emitting region 200 of each sub-pixel is defined by the opening in the pixel defining layer 8, and the shape of the light emitting region 200 of each sub-pixel is substantially the same as the shape of the opening of the pixel defining layer 8.

[0093] For example, in combination with reference to FIG. 2A and FIG. 12 , the pixel defining layer 8 includes a plurality of first openings 101, a plurality of second openings 102, and a plurality of third openings 103. The first openings 101 define first light emitting regions of first color sub-pixels SP1, the second openings 102 define second light emitting regions of second color sub-pixels SP2, and the third openings 103 define third light emitting regions of third color sub-pixels SP3.

[0094] For example, the display substrate includes a substrate, each sub-pixel and the pixel defining layer 8 are disposed on the substrate. Each sub-pixel includes an organic light emitting element, the organic light emitting element includes a first electrode, a light emitting layer, and a second electrode which are disposed in layers, and the first electrode is located on the side of the light emitting layer facing the substrate. For example, at least part of the first electrode is located on the side of the pixel defining layer facing the substrate. When the light emitting layer is formed in the opening in the above-mentioned pixel defining layer 8, the first electrode and the second electrode located on both sides of the light emitting layer can drive the light emitting layer in the opening of the pixel defining layer 8 to emit light. For example, at least one of the light emitting layer and the first electrode and the light emitting layer and the second electrode is further provided with a functional layer. For example, the functional layer includes any one or more of a hole injection layer, a hole transport layer, an electron transport layer, a hole blocking layer, an electron blocking layer, an electron injection layer, an auxiliary light emitting layer, an interface improvement layer, an anti-reflection layer, etc.

[0095] For example, in combination with reference to FIG. 2A and FIG. 12The display substrate 10 includes a first electrode layer 41 located on the substrate 1, and the first electrode layer 41 includes a plurality of anode structures. The anode structure constitutes a main part of the anode of the organic light-emitting element. For the convenience of description, the anode structure included in the organic light-emitting element of the first color sub-pixel SP1 can be referred to as a first anode structure 401, the anode structure included in the organic light-emitting element of the second color sub-pixel SP2 can be referred to as a second anode structure 402, and the anode structure included in the organic light-emitting element of the third color sub-pixel SP3 can be referred to as a third anode structure 403.

[0096] For example, the orthographic projection of the opening of the pixel defining layer on the substrate 1 is located within the orthographic projection of the corresponding light-emitting layer on the substrate 1, that is, the light-emitting layer covers the opening of the pixel defining layer. The orthographic projection of the opening of each sub-pixel on the substrate 1 falls within the orthographic projection of the anode structure of the sub-pixel on the substrate 1. For example, the orthographic projection of the first opening 101 of the first color sub-pixel SP1 on the substrate 1 falls within the orthographic projection of the first anode structure 401 of the first color sub-pixel SP1 on the substrate 1, the orthographic projection of the second opening 102 of the second color sub-pixel SP2 on the substrate 1 falls within the orthographic projection of the second anode structure 402 of the second color sub-pixel SP2 on the substrate 1, and the orthographic projection of the third opening 103 of the third color sub-pixel SP3 on the substrate 1 falls within the orthographic projection of the third anode structure 403 of the third color sub-pixel SP3 on the substrate 1. In the embodiments of the present disclosure, the area of the anode structure is larger than the area of the opening, which is conducive to ensuring that the organic light-emitting material in the opening of the sub-pixel emits light uniformly.

[0097] For reference FIG. 2A to FIG. 2C The orthographic projection of the anode structure of each sub-pixel on the substrate 1 and the orthographic projection of the opening of the sub-pixel on the substrate 1 have the same shape, and only differ in area.

[0098] In FIG. 2A In the embodiments shown in FIG. 1, the shape of the opening of each sub-pixel is schematically shown as a figure including a rounded corner, and the shape of the light-emitting region of each sub-pixel is also a figure including a rounded corner, for example, the shape of the anode structure of each sub-pixel can also be a figure including a rounded corner. The figure of the opening of the pixel defining layer can include four straight sides, and at least two adjacent straight sides are connected by a curved segment, and the curved segment forms a rounded corner. However, the embodiments of the present disclosure are not limited thereto, and the figure of the light-emitting region of each sub-pixel can also include three straight sides, five straight sides, or six straight sides, and the number of vertices included in the light-emitting region also changes accordingly.

[0099] For example, in FIG. 2AIn the illustrated embodiment, the orthographic projection of the first opening 101 of the first color sub-pixel SP1 onto the substrate 1 has a rounded rectangular shape, and correspondingly, the orthographic projection of the first anode structure 401 of the first color sub-pixel SP1 onto the substrate 1 also has a rounded rectangular shape. The orthographic projection of the second opening 102 of the second color sub-pixel SP2 onto the substrate 1 has a rounded rectangular shape, and correspondingly, the orthographic projection of the second anode structure 402 of the second color sub-pixel SP2 onto the substrate 1 also has a rounded rectangular shape. The orthographic projection of the third opening 103 of the third color sub-pixel SP3 onto the substrate 1 has an irregular shape (e.g., a rectangle with one corner truncated), and correspondingly, the orthographic projection of the third anode structure 403 of the third color sub-pixel SP3 onto the substrate 1 also has this irregular shape (e.g., a rectangle with one corner truncated).

[0100] For example, the anode structure of each sub-pixel is proportionally enlarged relative to its respective opening. (See reference...) FIG. 2C On the opposite side of the opening of any sub-pixel, the width of the anode structure of the sub-pixel extending beyond the contour edge of the opening is equal, for example, wd1 = wd2.

[0101] In the embodiments disclosed herein, the orthographic projection of the third opening 103 of the third color sub-pixel SP3 onto the substrate 1 and the orthographic projection of the third anode structure 403 of the third color sub-pixel SP3 onto the substrate 1 have irregular polygonal shapes, for example, referring to FIG. 5 The irregular polygon may be truncated by at least one first vertex 301 to form at least one first corner 1011. The irregular polygon may also include a second corner 1012 opposite to the first corner 1011.

[0102] Reference FIG. 2A The third color sub-pixel SP3 may include at least two types of sub-pixels. In one type of sub-pixel, the direction from the vertex of the first corner 1011 to the vertex of the opposite second corner 1012 is D1; ​​in the other type of sub-pixel, the direction from the vertex of the first corner 1011 to the vertex of the opposite second corner 1012 is D4, and the two directions are different.

[0103] For example, such as FIG. 2A As shown, direction D1 and direction D4 can be parallel and opposite, but are not limited to this; the two directions can also intersect.

[0104] For example, such as FIG. 2A As shown, the third color sub-pixel SP3 includes two different types of sub-pixels. One type of sub-pixel has its first corner 1011 facing to the right, while the other type of sub-pixel has its first corner 1011 facing to the left.

[0105] The embodiments of the present disclosure are not limited to this, for example, the orientations of the first corners in the two different types of sub-pixels in the third color sub-pixel can also be upward and downward respectively, or upward and leftward respectively, or upward and rightward respectively, or downward and rightward respectively, or downward and leftward respectively.

[0106] Of course, the embodiments of the present disclosure are not limited to the third color sub-pixel including two different types, and at least one of the first color sub-pixel and the second color sub-pixel can also include two different types of sub-pixels, and the judgment criteria of the different types of sub-pixels in the same color sub-pixel can refer to the judgment criteria of the different types of sub-pixels in the third color sub-pixel described above.

[0107] For example, in the same color sub-pixel with different types of sub-pixels, the two sub-pixels adjacent in the direction of at least one of the first arrangement direction and the second arrangement direction are different types of sub-pixels.

[0108] For example, as shown in FIG. 1, the orientations of the first corners 1011 in the two adjacent third color sub-pixels SP3 arranged along the first arrangement direction are different, for example, leftward and rightward respectively, but are not limited to this, and can also be upward and downward respectively, or upward and leftward respectively, or upward and rightward respectively, or downward and rightward respectively, or downward and leftward respectively. FIG. 2A

[0109] For example, as shown in FIG. 1, the orientations of the first corners 1011 in the two adjacent third color sub-pixels SP3 arranged along the second arrangement direction are different, for example, upward and downward respectively, but are not limited to this, and can also be leftward and rightward respectively, or upward and leftward respectively, or upward and rightward respectively, or downward and rightward respectively, or downward and leftward respectively. FIG. 2A The embodiments of the present disclosure are not limited to this, and the at least one color sub-pixel described above can also include three types of sub-pixels, the orientations of the first corners of the three different types of sub-pixels can include any three of upward, downward, leftward and rightward, and the sub-pixels located in the same row (or the same column) can include the same type of sub-pixel, or can include at least two types of sub-pixels, and the two sub-pixels adjacent in the direction of at least one of the first arrangement direction and the second arrangement direction can be the same type of sub-pixel, or can be different types of sub-pixels, which can be set according to actual product requirements. For example, one color sub-pixel can include the three types of sub-pixels described above, each of the two color sub-pixels can include the three types of sub-pixels described above, or each of the three color sub-pixels can include the three types of sub-pixels described above, and the embodiments of the present disclosure are not limited to this.

[0110] For example, as shown in FIG. 1, the orientations of the first corners 1011 in the two adjacent third color sub-pixels SP3 arranged along the second arrangement direction are different, for example, upward and downward respectively, but are not limited to this, and can also be leftward and rightward respectively, or upward and leftward respectively, or upward and rightward respectively, or downward and rightward respectively, or downward and leftward respectively.

[0111] FIG. 2A ​​As shown in FIG. 10, the at least one color sub-pixel includes four different types of sub-pixels, such as the first type of sub-pixel 1001, the second type of sub-pixel 1002, the third type of sub-pixel 1003, and the fourth type of sub-pixel 1004. In different types of sub-pixels, the direction in which the vertex of the first corner 1011 points to the vertex of the second corner 1012 is different. For example, the positions of the first corner 1011 in different types of sub-pixels are different. For example, the orientations of the first corner 1011 in different types of sub-pixels are different.

[0112] For example, the shapes of the sub-pixels of each type are the same, or the areas of the sub-pixels of each type are the same. For example, the shapes and areas of the sub-pixels of each type are the same. For example, the numbers of different types of sub-pixels are approximately the same. For example, the number ratio of any two types of sub-pixels among the first type of sub-pixel 1001, the second type of sub-pixel 1002, the third type of sub-pixel 1003, and the fourth type of sub-pixel 1004 is 0.8-1.2. For example, the number ratio of the first type of sub-pixel 1001 to the second type of sub-pixel 1002 is 0.8-1.2, and the number ratio of the third type of sub-pixel 1003 to the fourth type of sub-pixel 1004 is 0.8-1.2. For example, the number ratio of any two types of sub-pixels among the first type of sub-pixel 1001, the second type of sub-pixel 1002, the third type of sub-pixel 1003, and the fourth type of sub-pixel 1004 is 0.9-1.1.

[0113] For example, as shown in FIG. 10, the direction in which the vertex of the first corner 1011 of the first type of sub-pixel 1001 points to the vertex of the second corner 1012 is direction D2, the direction in which the vertex of the first corner 1011 of the second type of sub-pixel 1002 points to the vertex of the second corner 1012 is direction D3, the direction in which the vertex of the first corner 1011 of the third type of sub-pixel 1003 points to the vertex of the second corner 1012 is direction D4, and the direction in which the vertex of the first corner 1011 of the fourth type of sub-pixel 1004 points to the vertex of the second corner 1012 is direction D1. FIG. 2A For example, as shown in FIG. 10, the direction in which the vertex of the first corner 1011 of the first type of sub-pixel 1001 points to the vertex of the second corner 1012 is direction D2, the direction in which the vertex of the first corner 1011 of the second type of sub-pixel 1002 points to the vertex of the second corner 1012 is direction D3, the direction in which the vertex of the first corner 1011 of the third type of sub-pixel 1003 points to the vertex of the second corner 1012 is direction D4, and the direction in which the vertex of the first corner 1011 of the fourth type of sub-pixel 1004 points to the vertex of the second corner 1012 is direction D1.

[0114] For example, as shown in FIG. 10, the direction in which the vertex of the first corner 1011 of the first type of sub-pixel 1001 points to the vertex of the second corner 1012 is direction D2, the direction in which the vertex of the first corner 1011 of the second type of sub-pixel 1002 points to the vertex of the second corner 1012 is direction D3, the direction in which the vertex of the first corner 1011 of the third type of sub-pixel 1003 points to the vertex of the second corner 1012 is direction D4, and the direction in which the vertex of the first corner 1011 of the fourth type of sub-pixel 1004 points to the vertex of the second corner 1012 is direction D1. FIG. 2AAs shown, in the first type sub-pixel 1001 and the second type sub-pixel 1002, the vertex of the first corner 1011 points to the direction opposite to the vertex of the second corner 1012 opposite to it, for example, parallel to the second arrangement direction Y; in the third type sub-pixel 1003 and the fourth type sub-pixel 1004, the vertex of the first corner 1011 points to the direction opposite to the vertex of the second corner 1012 opposite to it, for example, parallel to the first arrangement direction X. Thus, the direction D2 and the direction D3 are opposite, and the direction D4 and the direction D1 are opposite.

[0115] The embodiments of the present disclosure schematically show that the third color sub-pixel includes four different types of sub-pixels, but are not limited thereto, and at least one color sub-pixel of the first color sub-pixel and the second color sub-pixel can also include the four different types of sub-pixels, and the vertex of the first corner of the different types of sub-pixels in the other color sub-pixel can be parallel to the first arrangement direction or the second arrangement direction, or can be intersected with the first arrangement direction or the second arrangement direction.

[0116] The display substrate provided by the embodiments of the present disclosure has four different types of sub-pixels, which is beneficial to improve the color deviation problem of the display substrate during display. In addition, in general display substrates, the shapes of the four corners included in the opening area of each different color sub-pixel are the same, and compared with such display substrates, the display substrate provided by the embodiments of the present disclosure has the four different types of sub-pixels, which is beneficial to reduce the grainy feeling during display of the display substrate.

[0117] In FIG. 2AIn the shown embodiment, the anode structure of each sub-pixel is scaled proportionally with respect to the respective opening. That is, in the first type sub-pixel 1001, the second type sub-pixel 1002, the third type sub-pixel 1003 and the fourth type sub-pixel 1004, the direction in which the vertex of the first corner 1011 points to the vertex of the second corner 1012 with respect to the anode structure of the sub-pixel is the direction D2, the direction D3, the direction D4 and the direction D1, respectively. For example, in the opening of the first type sub-pixel 1001, the direction in which the vertex of the first corner 1011 points to the vertex of the second corner 1012 is the direction D2; in the opening of the second type sub-pixel 1002, the direction in which the vertex of the first corner 1011 points to the vertex of the second corner 1012 is the direction D3; in the opening of the third type sub-pixel 1003, the direction in which the vertex of the first corner 1011 points to the vertex of the second corner 1012 is the direction D4; in the opening of the fourth type sub-pixel 1004, the direction in which the vertex of the first corner 1011 points to the vertex of the second corner 1012 is the direction D1. In this way, the anode structure of each sub-pixel forms a periodic irregular pattern arrangement. The inventors have found through research that when the anode structure of each sub-pixel forms a periodic irregular pattern arrangement, the paths of light diffraction and reflection of different rows and / or columns are different, and periodic fringes (see FIG. 3 , a schematic diagram of the interference fringes in the embodiment shown in FIG. 2A , a schematic diagram of the interference fringes in the embodiment shown in

[0118] FIG. 4A A partial schematic diagram for schematically showing the arrangement of sub-pixels in a display area of a display substrate according to some example embodiments of the present disclosure. FIG. 4B A partial schematic diagram for schematically showing the arrangement of sub-pixels in a display area of a display substrate according to some example embodiments of the present disclosure. FIG. 4A An enlarged view of a single sub-pixel in FIG. 4C A schematic cross-sectional view taken along the line CC' in FIG. 4B An enlarged view of the opening of a single sub-pixel shown in FIG. 5 An enlarged view of the opening of a single sub-pixel shown in FIG. 4A Simulation results of the interference fringes in the embodiment shown in FIG. 6 FIG. 4A Simulation results of the interference fringes in the embodiment shown in FIG. 7 A partial schematic diagram for schematically showing the specific structure of an anode of a display substrate according to some example embodiments of the present disclosure. FIG. 8A A partial schematic diagram for schematically showing the arrangement of sub-pixels in a display area of a display substrate according to some example embodiments of the present disclosure. FIG. 8B to FIG. 8D Enlarged views of a single sub-pixel in a display area of a display substrate according to some example embodiments of the present disclosure. FIG. 9A A partial schematic diagram for schematically showing the arrangement of sub-pixels in a display area of a display substrate according to some example embodiments of the present disclosure. FIG. 9B ​for FIG. 9A A magnified view of a single subpixel in the image. FIG. 10A This is a partial schematic diagram illustrating the subpixel arrangement of a display substrate in a display area according to some further exemplary embodiments of the present disclosure. FIG. 10B for FIG. 10A A magnified view of a single subpixel in the image. FIG. 11A This is a partial schematic diagram illustrating the subpixel arrangement of a display substrate in a display area according to some further exemplary embodiments of the present disclosure. FIG. 11B for FIG. 11A A magnified view of a single subpixel in the image.

[0119] It should be noted that some content in the following description can be referenced from the above text. FIG. 2A to FIG. 2C The following description mainly describes the differences from... FIG. 2A to FIG. 2C Accordingly, to avoid confusion, parts, components, or portions with the same or similar structure are represented by the same reference numerals, while parts, components, or portions with different structures or shapes are represented by different reference numerals.

[0120] like FIG. 4A As shown, the display substrate 10 includes a plurality of sub-pixels. For example, the plurality of sub-pixels includes a plurality of first-color sub-pixels SP1, a plurality of second-color sub-pixels SP2, and a plurality of third-color sub-pixels SP3. The plurality of first-color sub-pixels SP1 and the plurality of third-color sub-pixels SP3 are arranged along a first arrangement direction (e.g., ...). FIG. 4A The X direction (also known as the row direction) is alternately arranged to form the first pixel row 01. Multiple second color sub-pixels SP2 are arranged along the first arrangement direction X to form the second pixel row 02. The first pixel row 01 and the second pixel row 02 are arranged along a second arrangement direction that intersects the first arrangement direction X (e.g., ...). FIG. 4A The Y-direction (also known as the column direction) shown is alternately arranged and staggered from each other in the first arrangement direction X. For example, adjacent first color sub-pixels SP1 and second color sub-pixels SP2 are arranged along the first direction M1, which intersects both the first arrangement direction X and the second arrangement direction Y. FIG. 4A As shown, multiple first color sub-pixels SP1 and multiple third color sub-pixels SP3 are alternately arranged along the second arrangement direction Y to form multiple first pixel columns 03. Multiple second color sub-pixels SP2 are arranged in an array along the first arrangement direction X and the second arrangement direction Y to form multiple first pixel columns 03 and multiple second pixel columns 04. The multiple first pixel columns 03 and multiple second pixel columns 04 are alternately arranged along the first arrangement direction X and staggered from each other in the second arrangement direction Y. That is, the second pixel row 02 of a second color sub-pixel SP2 is located between two adjacent first pixel rows 01, and the second pixel column 04 of the second color sub-pixel SP2 is located between two adjacent first pixel columns 03.

[0121] As shown in FIG. 4A , the display substrate includes a plurality of repeating units A arranged in an array, each repeating unit A including two rows and four columns of sub-pixels, that is, each repeating unit A includes one first color sub-pixel SP1, one third color sub-pixel SP3, and two second color sub-pixels SP2, the first color sub-pixel SP1 and the third color sub-pixel SP3 are common sub-pixels, and through a virtual algorithm, the four sub-pixels can realize the display of two virtual pixel units. For example, in the same row of repeating units, the first color sub-pixel SP1 in the second repeating unit, the third color sub-pixel SP3 in the first repeating unit, and the second color sub-pixel SP2 close to the second repeating unit in the first repeating unit form a virtual pixel unit, and at the same time, the first color sub-pixel SP1 in the second repeating unit also forms a virtual pixel unit with the third color sub-pixel SP3 in the repeating unit and the second color sub-pixel SP2 close to the first repeating unit in the repeating unit; in addition, the third color sub-pixel SP3 in the second repeating unit also forms a virtual pixel unit with the other second color sub-pixel SP2 in the repeating unit and the first color sub-pixel SP1 in the third repeating unit, thereby effectively improving the resolution of the display substrate.

[0122] As shown in FIG. 4A , each sub-pixel includes a light emitting region 200. For example, the display substrate 10 includes a pixel defining layer 8 (refer to FIG. 12 ) disposed on the substrate 1, the shape of the light emitting region 200 of each sub-pixel is defined by the opening in the pixel defining layer 8, and then the shape of the light emitting region 200 of each sub-pixel is substantially the same as the shape of the opening in the pixel defining layer 8.

[0123] For example, in combination with reference to FIG. 4A and FIG. 12 , the pixel defining layer 8 includes a plurality of first openings 101, a plurality of second openings 102, and a plurality of third openings 103. The first openings 101 define the first light emitting region of the first color sub-pixel SP1, the second openings 102 define the second light emitting region of the second color sub-pixel SP2, and the third openings 103 define the third light emitting region of the third color sub-pixel SP3.

[0124] FIG. 12 is a cross-sectional view taken along the line AA' in FIG. 1A , which schematically shows the specific structure of the display substrate according to some example embodiments of the present disclosure. In combination with reference to FIG. 1A , FIG. 2A , FIG. 4A and FIG. 12The display substrate 10 includes a pixel driving circuit layer which is sequentially stacked on the substrate 1, wherein the pixel driving circuit layer can include a thin film transistor T, an insulating layer 31, a planarization layer 32, and an organic light emitting element 41. The organic light emitting element 41 includes a first electrode (e.g., an anode) 41A in a first electrode layer, a second electrode (e.g., a cathode) 41C in a second electrode layer, and a light emitting layer 41B between the first electrode 41A and the second electrode 41C. The first electrode 41A of the organic light emitting element 41 is electrically connected with the transistor through an anode connection hole VH1 which penetrates the planarization layer 32. The pixel driving circuit layer can include a semiconductor layer, a first insulating layer, a first gate layer, a second insulating layer, a second gate layer, an interlayer insulating layer, a source-drain metal layer, etc. In some embodiments, the pixel driving circuit can include seven thin film transistors (e.g., a driving transistor, a data writing transistor, a compensation transistor, a reset transistor, a light emitting control transistor, etc.), and a storage capacitor, wherein at least one of the thin film transistors is directly connected with the light emitting device, e.g., the light emitting control transistor. FIG. 12 Only one thin film transistor T is schematically shown, which at least includes an active layer in a semiconductor layer, and a source contact portion, a drain contact portion, a gate in a first gate layer, a source and a drain in a source-drain metal layer.

[0125] It should be noted that, in this document, unless otherwise specified, a "via hole" or a "connection hole" is used for electrically connecting components in different conductive layers, and in embodiments of the present disclosure, the "via hole" or the "connection hole" can also be replaced by other alternative forms, e.g., a "groove" which can be used for electrically connecting components in different conductive layers can replace the via hole or the connection hole.

[0126] For example, the first electrode 41A can include a transparent conductive material such as ITO, and embodiments of the present disclosure do not limit the specific material of the first electrode 41A. For example, the second electrode 41C can be a structure formed on the entire surface of the display substrate 10 (e.g., at least covering the entire display area), and the second electrode 41C can include a metal material such as lithium (Li), aluminum (Al), magnesium (Mg), silver (Ag), etc. For example, since the second electrode 41C can be formed as a very thin layer, the second electrode 41C has good light transmittance.

[0127] The display substrate 10 can further include a pixel defining layer 8. For example, the pixel defining layer 8 can have a plurality of openings. For example, some of the openings are located in the display area AA, and each of the openings exposes a portion of the first electrode of the organic light emitting element 41.

[0128] For reference FIG. 7 and FIG. 12The first electrode 41A includes the anode structure 413 and an anode connecting portion 422, at least a portion of which has a thickness different from that of the anode structure 413. Specifically, at the via VH1, the anode connecting portion 422 of the first electrode is connected to the source or drain of the thin film transistor below, so at least a portion of the anode connecting portion 422 has a thickness greater than that of the anode structure 413.

[0129] It should be understood that the anode structure 413 is the main part of the anode (i.e., the first electrode), and the anode connecting portion 422 is an auxiliary part of the anode (i.e., the first electrode), which is designed to facilitate the setting of the via VH1. In the embodiments of the present disclosure, only FIG. 7 The overall structure of the anode is schematically shown, and in other figures, the main part of the anode (i.e., the anode structure) is used to represent the main contour of the anode. That is, in this document, unless otherwise stated, the orthographic projection of the anode structure on the substrate is used to represent the pattern of the anode of each sub-pixel.

[0130] FIG. 13 is an equivalent circuit diagram of one pixel driving circuit of a display substrate according to some exemplary embodiments of the present disclosure.

[0131] In the following, the structure of the pixel driving circuit will be described in detail taking a 7T1C pixel driving circuit as an example, but the embodiments of the present disclosure are not limited to the 7T1C pixel driving circuit, and other known pixel driving circuit structures can be applied to the embodiments of the present disclosure without conflict.

[0132] As shown in FIG. 13 The pixel driving circuit can include a plurality of thin film transistors and a storage capacitor Cst. The pixel driving circuit is used to drive an organic light-emitting diode (i.e., OLED). The plurality of thin film transistors includes a first transistor T1, a second transistor T2, a third transistor T3, a fourth transistor T4, a fifth transistor T5, a sixth transistor T6, and a seventh transistor T7. Each transistor includes a gate, a source, and a drain.

[0133] The display substrate can further include a plurality of signal lines, for example, the plurality of signal lines include a scan signal line 61 for transmitting a scan signal Sn, a reset signal line 62 for transmitting a reset control signal RESET (i.e., the scan signal of the previous row), a light-emitting control line 63 for transmitting a light-emitting control signal En, a data line 64 for transmitting a data signal Dm, a driving voltage line 65 for transmitting a driving voltage VDD, an initialization voltage line 66 for transmitting an initialization voltage Vint, and a power supply line 67 for transmitting a VSS voltage.

[0134] The gate G1 of the first transistor T1 is electrically connected to one end Cstl of the storage capacitor Cst, the source S1 of the first transistor T1 is electrically connected to the driving voltage line 65 via the fifth transistor T5, and the drain D1 of the first transistor T1 is electrically connected to the anode of the OLED via the sixth transistor T6. The first transistor T1 receives the data signal Dm according to the switching operation of the second transistor T2 to supply the driving current Id to the OLED.

[0135] The gate G2 of the second transistor T2 is electrically connected to the scan signal line 61, the source S2 of the second transistor T2 is electrically connected to the data line 64, and the drain D2 of the second transistor T2 is electrically connected to the driving voltage line 65 via the fifth transistor T5 and to the source S1 of the first transistor T1. The second transistor T2 is turned on according to the scan signal Sn transmitted through the scan signal line 61 to perform the switching operation to transmit the data signal Dm transmitted to the data line 64 to the source S1 of the first transistor T1.

[0136] The gate G3 of the third transistor T3 is electrically connected to the scan signal line 61, the source S3 of the third transistor T3 is electrically connected to the anode of the OLED via the sixth transistor T6 and to the drain D1 of the first transistor T1, and the drain D3 of the third transistor T3 is electrically connected to one end (i.e., the first capacitor electrode) Cstl of the storage capacitor Cst, the drain D4 of the fourth transistor T4, and the gate G1 of the first transistor T1. The third transistor T3 is turned on according to the scan signal Sn transmitted through the scan signal line 61 to connect the gate G1 and the drain D1 of the first transistor T1 to each other, thereby performing the diode connection of the first transistor T1.

[0137] The gate G4 of the fourth transistor T4 is electrically connected to the reset control signal line 62, the source S4 of the fourth transistor T4 is electrically connected to the initialization voltage line 66, and the drain D4 of the fourth transistor T4 is electrically connected to one end Cstl of the storage capacitor Cst, the drain D3 of the third transistor T3, and the gate G1 of the first transistor T1. The fourth transistor T4 is turned on according to the reset control signal Sn-1 transmitted through the reset control signal line 62 to transmit the initialization voltage Vint to the gate G1 of the first transistor T1, thereby performing the initialization operation to initialize the voltage of the gate G1 of the first transistor T1.

[0138] The gate G5 of the fifth transistor T5 is electrically connected to the light-emitting control line 63, the source S5 of the fifth transistor T5 is electrically connected to the driving voltage line 65, and the drain D5 of the fifth transistor T5 is electrically connected to the source S1 of the first transistor T1 and the drain D2 of the second transistor T2.

[0139] The gate G6 of the sixth transistor T6 is electrically connected to the light emission control line 63, and the source S6 of the sixth transistor T6 is electrically connected to the drain D1 of the first transistor T1 and to the source S3 of the third transistor T3. Also, the drain D6 of the sixth transistor T6 is electrically connected to the anode of the OLED. The fifth transistor T5 and the sixth transistor T6 are concurrently (e.g., simultaneously) turned on in accordance with the light emission control signal En transmitted through the light emission control line 63 to transmit the drive voltage ELVDD to the OLED, thereby allowing the drive current Id to flow into the OLED.

[0140] The seventh transistor T7 includes a gate G7 connected to the reset control signal line 62, a source S7 connected to the drain D6 of the sixth transistor T6 and the anode of the OLED, and a drain D7 connected to the initialization voltage line 66. The seventh transistor T7 transmits the reset control signal Sn-1 from the reset control signal line 62 to the gate G7.

[0141] The other end Cst2 of the storage capacitor Cst is electrically connected to the drive voltage line 65, and the cathode of the OLED is electrically connected to the power supply line 67 to receive the common voltage ELVSS. Accordingly, the OLED receives the drive current Id from the first transistor T1 to emit light, thereby displaying an image.

[0142] It is noted that, in FIG. 13 , each of the thin film transistors T1, T2, T3, T4, T5, T6, and T7 is a p-channel field effect transistor, but embodiments of the present disclosure are not limited thereto, and at least some of the thin film transistors T1, T2, T3, T4, T5, T6, and T7 can be n-channel field effect transistors.

[0143] In operation, during an initialization phase, the reset control signal Sn-1 having a low level is supplied through the reset control signal line 62. Subsequently, the initialization thin film transistor T4 is turned on based on the low level of the reset control signal Sn-1, and the initialization voltage Vint from the initialization voltage line 66 is transmitted through the initialization thin film transistor T4 to the gate G1 of the drive thin film transistor T1. Accordingly, the drive thin film transistor T1 is initialized due to the initialization voltage Vint.

[0144] During a data programming phase, the scan signal Sn having a low level is supplied through the scan signal line 61. Subsequently, the switching thin film transistor T2 and the compensation thin film transistor T3 are turned on based on the low level of the scan signal Sn. Accordingly, the drive thin film transistor T1 is placed in a diode connection state and biased in a positive direction through the turned-on compensation thin film transistor T3.

[0145] Subsequently, a compensation voltage Dm+Vth (e.g., Vth is a negative value) obtained by subtracting the threshold voltage Vth of the drive thin film transistor T1 from the data signal Dm supplied via the data line 64 is applied to the gate G1 of the drive thin film transistor T1. Subsequently, the drive voltage ELVDD and the compensation voltage Dm+Vth are applied to both terminals of the storage capacitor Cst, so that a charge corresponding to a voltage difference between the respective terminals is stored in the storage capacitor Cst.

[0146] During the light emission stage, the light emission control signal En from the light emission control line 63 changes from a high level to a low level. Subsequently, during the light emission stage, the first light emission control thin film transistor T5 and the second light emission control thin film transistor T6 are turned on based on the low level of the light emission control signal En.

[0147] Subsequently, a drive current is generated based on a difference between the voltage of the gate G1 of the drive thin film transistor T1 and the drive voltage ELVDD. The drive current Id corresponding to a difference between the drive current and the bypass current is supplied to the OLED via the second light emission control thin film transistor T6.

[0148] During the light emission stage, based on a current-voltage relationship of the drive thin film transistor T1, the gate-source voltage of the drive thin film transistor T1 is maintained at (Dm+Vth)-ELVDD due to the storage capacitor Cst. The drive current Id is proportional to (Dm-ELVDD) 2 Therefore, the drive current Id can not be affected by a threshold voltage Vth variation of the drive thin film transistor T1.

[0149] For example, in various embodiments of the present disclosure, the substrate substrate 1 can be a glass substrate, a quartz substrate, a metal substrate, or a resin substrate, etc., and can be a rigid substrate or a flexible substrate, and embodiments of the present disclosure do not limit this.

[0150] For example, in combination with reference to FIG. 4A and FIG. 12 , the display substrate 10 includes a first electrode layer, the first electrode layer is located on the substrate substrate 1, and the first electrode layer includes a plurality of anode structures. The anode structure constitutes the main part of the anode of the organic light emitting element. For the convenience of description, the anode structure included in the organic light emitting element of the first color sub-pixel SP1 can be referred to as the first anode structure 401, the anode structure included in the organic light emitting element of the second color sub-pixel SP2 can be referred to as the second anode structure 402, and the anode structure included in the organic light emitting element of the third color sub-pixel SP3 can be referred to as the third anode structure 403.

[0151] For example, in combination with reference to FIG. 4A , FIG. 8A , FIG. 9A , FIG. 10A andFIG. 11A The orthogonal projection of the opening of the pixel defining layer on the substrate substrate is located within the orthogonal projection of the corresponding light emitting layer on the substrate substrate, i.e. the light emitting layer covers the opening of the pixel defining layer. The orthogonal projection of the opening of each sub-pixel on the substrate substrate falls within the orthogonal projection of the anode structure of the sub-pixel on the substrate substrate. For example, the orthogonal projection of the first opening 101 of the first color sub-pixel SP1 on the substrate substrate 1 falls within the orthogonal projection of the first anode structure 401 of the first color sub-pixel SP1 on the substrate substrate 1, the orthogonal projection of the second opening 102 of the second color sub-pixel SP2 on the substrate substrate 1 falls within the orthogonal projection of the second anode structure 402 of the second color sub-pixel SP2 on the substrate substrate 1, and the orthogonal projection of the third opening 103 of the third color sub-pixel SP3 on the substrate substrate 1 falls within the orthogonal projection of the third anode structure 403 of the third color sub-pixel SP3 on the substrate substrate 1. In the embodiments of the present disclosure, the area of the anode structure is larger than the area of the opening, which is conducive to ensuring that the organic light emitting material in the opening of the sub-pixel emits light uniformly.

[0152] With reference to FIG. 4A to FIG. 4C , FIG. 8A to FIG. 8D , FIG. 9A to FIG. 9B , FIG. 10A to FIG. 10B and FIG. 11A to FIG. 11B , for at least some of the plurality of sub-pixels, the pattern of the orthogonal projection of the opening of each sub-pixel on the substrate substrate is different from the pattern shape of the orthogonal projection of the anode structure of the sub-pixel on the substrate substrate; and the number of symmetry axes of the pattern of the orthogonal projection of the anode structure of each sub-pixel on the substrate substrate is greater than the number of symmetry axes of the pattern of the orthogonal projection of the opening of the sub-pixel on the substrate substrate.

[0153] For example, in the embodiments shown in FIG. 4A and FIG. 8A , the orthogonal projection of the first opening 101 of the first color sub-pixel SP1 on the substrate substrate 1 has a shape of a rounded rectangle, and accordingly, the orthogonal projection of the first anode structure 401 of the first color sub-pixel SP1 on the substrate substrate 1 also has a shape of a rounded rectangle. The orthogonal projection of the second opening 102 of the second color sub-pixel SP2 on the substrate substrate 1 has a shape of a rounded rectangle, and accordingly, the orthogonal projection of the second anode structure 402 of the second color sub-pixel SP2 on the substrate substrate 1 also has a shape of a rounded rectangle.

[0154] Referring to FIG. 4A , the orthogonal projection of the third opening 103 of the third color sub-pixel SP3 on the substrate substrate 1 has an irregular shape, for example, a rectangle with one corner cut off, which can be referred to in FIG. 5 . Differently, the orthogonal projection of the third anode structure 403 of the third color sub-pixel SP3 on the substrate substrate 1 has a regular shape, for example, a rectangle or a rounded rectangle.

[0155] Reference FIG. 8A The orthographic projection of the third opening 103 of the third color sub-pixel SP3 onto the substrate 1 has an irregular shape; for example, a rectangle with one corner truncated, as can be seen from... FIG. 5 In contrast, the orthographic projection of the third anode structure 403 of the third color sub-pixel SP3 onto the substrate 1 has a regular shape, for example, a circle.

[0156] exist FIG. 4A and FIG. 8A In the illustrated embodiment, the shape of the opening of each sub-pixel is schematically shown as a shape including rounded corners. Therefore, the shape of the light-emitting area of ​​each sub-pixel is also a shape including rounded corners. For example, the shape of the anode structure of each sub-pixel can also be a shape including rounded corners. The shape of the opening of the pixel defining layer can include four straight edges, with at least two adjacent straight edges connected by a curved segment that forms a rounded corner. However, the embodiments of this disclosure are not limited to this. The shape of the light-emitting area of ​​each sub-pixel can also include three, five, or six straight edges, and the number of apex corners included in the light-emitting area will vary accordingly.

[0157] Combined with reference FIG. 4A and FIG. 4B as well as FIG. 8A and FIG. 8B For at least some of the plurality of sub-pixels, the orthographic projection of the anode structure of each sub-pixel onto the substrate is non-proportionally enlarged relative to the orthographic projection of the opening of that sub-pixel onto the substrate.

[0158] FIG. 5 for FIG. 4A or FIG. 8A The diagram shows the shape of a light-emitting area. (See attached diagram.) FIG. 4A , FIG. 8A and FIG. 5 As shown, each edge or its extension of each light-emitting area 200 is sequentially connected to form a polygon 300, and at least some sub-pixels have multiple vertices 301 of the polygon 300 that do not overlap with multiple corners 001 of the corresponding light-emitting area 200 in a region N0; at least one corner 1011 of the light-emitting area 200 of at least one sub-pixel is included, and the area of ​​the first corner 1011 and the non-overlapping region N0 of the vertices 301 of the polygon 300 corresponding to it is greater than the area of ​​each corner 001 and the non-overlapping region N0 of the vertices 301 of the polygon 300 corresponding to the corner 001 in at least some of the other corners 001.

[0159] For example, FIG. 5The diagram schematically shows that all the vertices of polygon 300 have a region N0 that does not overlap with the corresponding corner 001 of the corresponding light-emitting area 200. However, it is not limited to this. It is also possible that some vertices of the polygon have a region that does not overlap with the corresponding corner of the light-emitting area, and some vertices completely overlap with the corresponding corner of the light-emitting area.

[0160] For example, such as FIG. 4A and FIG. 5 As shown, in at least two different color sub-pixels (e.g., the first color sub-pixel and the second color sub-pixel, or the first color sub-pixel and the third color sub-pixel, or the second color sub-pixel and the third color sub-pixel, or the first color sub-pixel, the second color sub-pixel and the third color sub-pixel), the shape of the light-emitting area 200 is the shape of the polygon 300 after at least one first vertex 301 has been removed. For example, the truncating line 302 used to remove the first vertex 301 of the polygon 300 may include curves, straight lines and other line segments with regular shapes, or it may be a line segment with an irregular shape.

[0161] For example, the embodiments of this disclosure schematically show that polygon 300 is a quadrilateral. For example, the shape of the polygon corresponding to at least one color sub-pixel can be a rhombus, rectangle, or square, but is not limited thereto. Polygon 300 can also be a triangle, pentagon, or hexagon, etc., and the embodiments of this disclosure do not impose any limitations on this. For example, the angles of the vertices of the polygon can be equal or unequal.

[0162] like FIG. 4A , FIG. 4B and FIG. 5 As shown, the apex of the light-emitting area (or opening) 101 includes a first corner 1011, which is a corner formed by cutting off the first apex 301 between two first sides 310 from the polygon 300. For example, the ratio of the length of the portion L1 cut off from at least one of the two first sides 310 to the length of the first side 310 is 0.2 to 0.8. The remaining portion L2 after the first side 310 of the polygon 300 is cut off by the first line segment L1 forms the edge of the light-emitting area 200 connecting the first corner 1011. For example, the two ends of the first corner 1011 are respectively connected to two straight edges of the light-emitting area 200, and at least one of these two straight edges is the straight edge remaining after the first side 310 of the polygon 300 is cut off by the first line segment L1.

[0163] For example, at least one first vertex 301 may be truncated from polygon 300 to form at least one first corner 1011. For example, a polygon 300 may include a plurality of first vertex 301 with equal degree, and the shape and size of the plurality of first corners 1011 formed after the plurality of first vertex 301 are truncated are all equal.

[0164] The ratio of the length of the first line segment L1 to the length of the first side 310 is 0.2-0.8. For example, the ratio of the length of the first line segment L1 to the length of the first side 310 is 0.3-0.7; for example, the ratio of the length of the first line segment L1 to the length of the first side 310 is 0.4-0.6; for example, the ratio of the length of the first line segment L1 to the length of the first side 310 is 0.5.

[0165] For example, the ratio of the length of the first line segment L1 to the length of the remaining part L2 is 0.25-4. For example, the ratio of the length of the first line segment L1 to the length of the remaining part L2 is 1-3. The ratio of the length of the first line segment L1 to the length of the remaining part L2 is 0.5-2.

[0166] For example, the number of the first corner 1011 in the at least two different color sub-pixels is different. For example, the number of the first corner 1011 in the two different color sub-pixels being different can mean that the number of the first corner in the same color sub-pixel is the same, and the number of the first corner in one of the two different color sub-pixels is different from the number of the first corner in the other color sub-pixel. For example, the number of the first corner 1011 in the two different color sub-pixels being different can also mean that the number of the first corner in the same color sub-pixel is the same, and the number of different color sub-pixels is different, and the total number of the first corner in the different color sub-pixels is different.

[0167] For example, the number of the first corner 1011 in the at least two different color sub-pixels being different is conducive to adjusting the brightness center in at least part of the display area to make it more uniform.

[0168] For example, as shown in FIG. 4A The area of the light-emitting area 200 of the same color sub-pixel is the same, and the area of the light-emitting area 200 of the different color sub-pixel is different.

[0169] For example, when the light-emitting area 200 includes one first corner 1011, the geometric center of the light-emitting area 200 is located on the side of the midpoint of the line 303 connecting the vertex of the first top corner 301 and the vertex of the top corner opposite the first corner 1011 away from the first corner 1011, so that by adjusting the geometric center of at least part of the light-emitting area, the brightness center in at least part of the display area can be adjusted to make it more uniform.

[0170] For example, as shown in FIG. 4A and FIG. 5As shown, the display substrate provided by the embodiment of the present disclosure adjusts the shape of part of the sub-pixels, so that the distance from the intersection of the extensions of the two straight sides connected to the two ends of the first corner to the geometric center of the light-emitting area of at least two color sub-pixels of the first color sub-pixel, the second color sub-pixel and the third color sub-pixel is different from the distance from the intersection of the extensions of the two straight sides constituting the top corner opposite the first corner to the geometric center of the light-emitting area of the sub-pixel, so as to adjust the actual brightness center of each virtual pixel unit, so that the actual brightness centers in the display substrate are more uniformly distributed.

[0171] For example, the number of first corners 1011 in a color sub-pixel is one, and the number of first corners 1011 in another color sub-pixel is greater than one, for example, can be two, three or four. For example, the number of first corners 1011 in a color sub-pixel can be two, and the number of first corners 1011 in another color sub-pixel can be three or four. For example, the number of first corners 1011 in a color sub-pixel can be three, and the number of first corners 1011 in another color sub-pixel can be four. The number of first corners of different color sub-pixels is not limited in the embodiment of the present disclosure, and can be set according to actual product requirements.

[0172] For example, the first corner 1011 includes a vertex P1, which can be on the line 303. A part of the curve formed by the two edges connected to the two ends of the first corner 1011 extending to the vertex P1 of the first corner 1011 (i.e. the outer edge of the first corner) so that the first corner 1011 becomes a round chamfer. At this time, the first corner 1011 can be a range of x microns along the contour centering on the vertex P1, and the value of x can be 2-7 microns. When the first corner is a round chamfer and the shape of the light-emitting area is a right angle or an acute angle opposite the first corner, the distance from the intersection of the extensions of the two straight sides connected to the two ends of the first corner to the geometric center O1 of the light-emitting area 200 is greater than the distance from the intersection of the extensions of the two straight sides constituting the top corner opposite the first corner to the geometric center O1.

[0173] The "round chamfer" is a top corner formed by a curve, which can be a circular arc or an irregular curve such as a curve taken from an ellipse, a wavy line, etc. The embodiments of the present disclosure schematically show that the curve has a shape that is convex outward relative to the geometric center O1 of the light emitting region 200, but are not limited thereto, and the curve can also have a shape that is concave inward relative to the geometric center O1 of the light emitting region 200. For example, when the curve is a circular arc that is convex outward, the range of the central angle of the circular arc can be 10° to 150°. For example, the range of the central angle of the circular arc can be 60° to 120°. For example, the range of the central angle of the circular arc can be 90°. For example, the length of the curve of the round chamfer included in the first corner portion 1011 can be 10 to 60 microns.

[0174] For example, when the first corner portion 1011 is a round chamfer, the radius of curvature thereof can be 5 to 20 microns.

[0175] Referring to FIG. 4A For at least some of the plurality of sub-pixels (e.g., at least some of the third color sub-pixels SP3), the pattern of the orthographic projection of the anode structure of each sub-pixel on the substrate has a different number of axes of symmetry than the pattern of the orthographic projection of the opening of the sub-pixel on the substrate. FIG. 4A In the illustrated embodiment, for at least some of the plurality of sub-pixels (e.g., at least some of the third color sub-pixels SP3), the pattern of the orthographic projection of the anode structure of each sub-pixel on the substrate has a different number of axes of symmetry than the pattern of the orthographic projection of the opening of the sub-pixel on the substrate. For example, the pattern of the orthographic projection of the opening 103 of the third color sub-pixel SP3 on the substrate has one axis of symmetry, and the pattern of the orthographic projection of the anode structure of the third color sub-pixel SP3 on the substrate has at least two axes of symmetry. In FIG. 8A In the illustrated embodiment, for example, the pattern of the orthographic projection of the opening 103 of the third color sub-pixel SP3 on the substrate has one axis of symmetry, and the pattern of the orthographic projection of the anode structure of the third color sub-pixel SP3 on the substrate has an infinite number of axes of symmetry.

[0176] For example, as FIG. 4A and FIG. 8AAs shown, the third sub-pixel SP3 includes 4 types, for convenience of description, respectively referred to as a first type sub-pixel 1001, a second type sub-pixel 1002, a third type sub-pixel 1003 and a fourth type sub-pixel 1004. In the first type sub-pixel 1001, the second type sub-pixel 1002, the third type sub-pixel 1003 and the fourth type sub-pixel 1004, the direction in which the vertex of the first corner 1011 points to the vertex of the second corner 1012 is direction D2, direction D3, direction D4 and direction D1 respectively. For example, in the opening of the first type sub-pixel 1001, the direction in which the vertex of the first corner 1011 points to the vertex of the second corner 1012 is direction D2; in the opening of the second type sub-pixel 1002, the direction in which the vertex of the first corner 1011 points to the vertex of the second corner 1012 is direction D3; in the opening of the third type sub-pixel 1003, the direction in which the vertex of the first corner 1011 points to the vertex of the second corner 1012 is direction D4; in the opening of the fourth type sub-pixel 1004, the direction in which the vertex of the first corner 1011 points to the vertex of the second corner 1012 is direction D1.

[0177] In this paper, for convenience of description, the opening of the first type sub-pixel 1001 is referred to as a first type opening, the opening of the second type sub-pixel 1002 is referred to as a second type opening, the opening of the third type sub-pixel 1003 is referred to as a third type opening, and the opening of the fourth type sub-pixel 1004 is referred to as a fourth type opening, and so on.

[0178] Referring to FIG. 4A and FIG. 8A For at least one first type opening, the two openings adjacent to the first type opening in the first arrangement direction X are second type openings, the two openings adjacent to the first type opening in the second arrangement direction Y are second type openings, the two openings adjacent to the first type opening in the first direction M1 are third type openings, and the two openings adjacent to the first type opening in the second direction M2 are fourth type openings.

[0179] The pattern of the orthographic projection of at least one of the first type opening and the second type opening on the substrate 1 is only symmetrical with respect to the first axis of symmetry AX1 extending along the second arrangement direction Y. The pattern of the orthographic projection of each anode structure 413 covering the first type opening and the second type opening on the substrate 1 is symmetrical with respect to the first axis of symmetry AX1 extending along the second arrangement direction Y and the second axis of symmetry AX2 extending along the first arrangement direction X.

[0180] The pattern of the orthographic projection of at least one of the third type of opening and the fourth type of opening on the substrate 1 is symmetrical only with respect to a second axis of symmetry AX2 extending along the first arrangement direction X. The pattern of the orthographic projection of each anode structure 413 covering the third type of opening and the fourth type of opening on the substrate 1 is symmetrical with respect to both the second axis of symmetry AX2 extending along the first arrangement direction X and the first axis of symmetry AX1 extending along the second arrangement direction Y.

[0181] For at least some of the plurality of sub-pixels, the geometric center of the pattern of the orthographic projection of the anode structure of each sub-pixel on the substrate 1 does not coincide with the geometric center of the pattern of the orthographic projection of the opening of the sub-pixel on the substrate 1. For example, with reference to FIG. 4A 、 FIG. 4B 、 FIG. 5 、 FIG. 8A and FIG. 8B For at least some third color sub-pixels SP3, the pattern of the orthographic projection of the anode structure 403 of the third color sub-pixel SP3 on the substrate 1 is a regular pattern, for example, the regular pattern is a rectangle, a rounded rectangle or a circle. In this case, the geometric center O2 of the pattern of the orthographic projection of the anode structure 403 of the third color sub-pixel SP3 on the substrate 1 is the intersection of the two diagonals of the rectangle. The geometric center O2 of the pattern of the orthographic projection of the anode structure 403 of the third color sub-pixel SP3 on the substrate 1 does not coincide with the geometric center O1 of the pattern of the orthographic projection of the opening 103 of the sub-pixel on the substrate 1.

[0182] With reference to FIG. 4A and FIG. 8A For at least some of the plurality of sub-pixels, the geometric center O2 of the pattern of the orthographic projection of the anode structure 413 of at least one sub-pixel (for example, a third color sub-pixel SP3) on the substrate 1 is offset in the first arrangement direction X with respect to the geometric center O1 of the pattern of the orthographic projection of the opening 103 of the sub-pixel on the substrate 1; and / or, the geometric center O2 of the pattern of the orthographic projection of the anode structure 413 of at least one sub-pixel (for example, a third color sub-pixel SP3) on the substrate 1 is offset in the second arrangement direction Y with respect to the geometric center O1 of the pattern of the orthographic projection of the opening 103 of the sub-pixel on the substrate 1.

[0183] In the first type of sub-pixel 1001, the geometric center O2 of the pattern of the orthographic projection of the anode structure 413 on the substrate 1 is offset with respect to the geometric center O1 of the pattern of the orthographic projection of the opening 103 of the sub-pixel on the substrate 1 along a direction D3, i.e. downward along the second arrangement direction Y. In the second type of sub-pixel 1002, the geometric center O2 of the pattern of the orthographic projection of the anode structure 413 on the substrate 1 is offset with respect to the geometric center O1 of the pattern of the orthographic projection of the opening 103 of the sub-pixel on the substrate 1 along a direction D2, i.e. upward along the second arrangement direction Y. In the third type of sub-pixel 1003, the geometric center O2 of the pattern of the orthographic projection of the anode structure 413 on the substrate 1 is offset with respect to the geometric center O1 of the pattern of the orthographic projection of the opening 103 of the sub-pixel on the substrate 1 along a direction D1, i.e. leftward along the first arrangement direction X. In the fourth type of sub-pixel 1004, the geometric center O2 of the pattern of the orthographic projection of the anode structure 413 on the substrate 1 is offset with respect to the geometric center O1 of the pattern of the orthographic projection of the opening 103 of the sub-pixel on the substrate 1 along a direction D4, i.e. rightward along the first arrangement direction X.

[0184] With reference to FIG. 4B , FIG. 4C , FIG. 5 , FIG. 8A and FIG. 8B , the pattern of the orthographic projection of the opening 103 of the partial third color sub-pixel SP3 on the substrate 1 has a first axis of symmetry AX1, a first vertex P1 and a second vertex P2, the first and second vertices P1, P2 are both located on the first axis of symmetry AX1, and the first and second vertices P1, P2 are oppositely arranged. For example, the first vertex P1 is a vertex at the first corner 1011, and the second vertex P2 is a vertex at the second corner 1012.

[0185] The first axis of symmetry AX1 has a first intersection point Q1 and a second intersection point Q2 with the pattern of the orthographic projection of the anode structure 413 of the sub-pixel on the substrate 1, the first intersection point Q1 is adjacent to the first vertex P1, and the second intersection point Q2 is adjacent to the second vertex P2.

[0186] In the extension direction of the first symmetry axis AX1, a first distance sd1 between the first vertex P1 and the first intersection point Q1 is not equal to a second distance sd2 between the second vertex P2 and the second intersection point Q2. For example, in the extension direction of the first symmetry axis AX1, the first distance sd1 between the first vertex P1 and the first intersection point Q1 is greater than the second distance sd2 between the second vertex P2 and the second intersection point Q2. For example, the ratio of the first distance sd1 to the second distance sd2 is above 1.2, for example between 1.2 and 5, between 1.2 and 4, between 1.3 and 3, between 1.4 and 2.

[0187] With reference to FIG. 4C In the first cross-section, the pixel-defining layers 8 on both sides of the sub-pixel opening 103 cover a portion of the anode structure 413 of the sub-pixel, the width (e.g. sd1) of the portion of the anode structure 413 covered by the pixel-defining layer 8 on one side of the sub-pixel opening is not equal to the width (e.g. sd2) of another portion of the anode structure 413 covered by the pixel-defining layer 8 on the other side of the sub-pixel opening, wherein the first cross-section is perpendicular to the surface of the first electrode layer contacting the pixel-defining layer, and the first symmetry axis AX1 is located in the first cross-section.

[0188] With reference to FIG. 4A The plurality of sub-pixels comprises an n-th row of sub-pixels 011 and an n+2-th row of sub-pixels 012, for example, the plurality of sub-pixels can further comprise an n+1-th row of sub-pixels 02. The n-th row of sub-pixels 011 and the n+2-th row of sub-pixels 012 can comprise a plurality of sub-pixels of the same color (e.g. first color sub-pixels SP1 or third color sub-pixels SP3) arranged along a first arrangement direction X, and the n-th row of sub-pixels 011 and the n+2-th row of sub-pixels 012 are arranged along a second arrangement direction Y. For example, in this embodiment, the n-th row of sub-pixels 011 can comprise first color sub-pixels SP1 and third color sub-pixels SP3 arranged alternately along the first arrangement direction X, the n+1-th row of sub-pixels 02 can comprise second color sub-pixels SP2 arranged along the first arrangement direction X, and the n+2-th row of sub-pixels 011 can comprise first color sub-pixels SP1 and third color sub-pixels SP3 arranged alternately along the first arrangement direction X.

[0189] The nth row of sub-pixels 011 includes a first sub-pixel (e.g., a third color sub-pixel SP3), and the nth+2 row of sub-pixels 012 includes a second sub-pixel (e.g., a third color sub-pixel SP3), the second sub-pixel being one of the plurality of sub-pixels of the nth+2 row of sub-pixels that is most adjacent to the first sub-pixel in the first arrangement direction and is of the same color as the first sub-pixel, a pattern of a footprint of the first sub-pixel 103 on the substrate 1 is not translationally coincident with a pattern of a footprint of the second sub-pixel 103 on the substrate 1, and a pattern of a positive projection of the anode structure 401 of the first sub-pixel on the substrate 1 is translationally coincident with a pattern of a positive projection of the anode structure 402 of the second sub-pixel on the substrate 1.

[0190] In the same color sub-pixels of the nth row of sub-pixels 011 and the nth+2 row of sub-pixels 012, a pattern of a footprint of at least some of the sub-pixels on the substrate 1 is not translationally coincident with a pattern of a footprint of another of the sub-pixels on the substrate 1, and a pattern of a positive projection of the anode structure 413 of all of the sub-pixels on the substrate is translationally coincident.

[0191] With continued reference to FIG. 4A , the plurality of sub-pixels includes an mth column of sub-pixels 031 and an mth+2 column of sub-pixels 032, and the plurality of sub-pixels can further include an mth+1 column of sub-pixels 04. The mth column of sub-pixels 031 and the mth+2 column of sub-pixels 032 can include a plurality of same color sub-pixels (e.g., first color sub-pixels SP1 or third color sub-pixels SP3) arranged along a second arrangement direction Y, and the mth column of sub-pixels 031 and the mth+2 column of sub-pixels 032 are arranged along a first arrangement direction X. For example, in this embodiment, the mth column of sub-pixels 031 can include first color sub-pixels SP1 and third color sub-pixels SP3 arranged alternately along the second arrangement direction Y, the mth+1 column of sub-pixels 04 can include second color sub-pixels SP2 arranged along the second arrangement direction Y, and the mth+2 column of sub-pixels 032 can include first color sub-pixels SP1 and third color sub-pixels SP3 arranged alternately along the second arrangement direction Y.

[0192] The mth column of sub-pixels 031 includes a third sub-pixel (e.g., one third color sub-pixel SP3), and the m+2th column of sub-pixels includes a fourth sub-pixel (e.g., another third color sub-pixel SP3), the fourth sub-pixel being one of the sub-pixels of the m+2th column of sub-pixels that is most adjacent to the third sub-pixel in the second arrangement direction and is of the same color as the third sub-pixel, the pattern of the orthographic projection of the opening 103 of the third sub-pixel on the substrate 1 is not translationally coincident with the pattern of the orthographic projection of the opening 103 of the fourth sub-pixel on the substrate, and the pattern of the orthographic projection of the anode structure 413 of the third sub-pixel on the substrate is translationally coincident with the pattern of the orthographic projection of the anode structure 413 of the fourth sub-pixel on the substrate.

[0193] In the same color sub-pixels of the mth column of sub-pixels 031 and the m+2th column of sub-pixels 032, the pattern of the orthographic projection of the opening 103 of at least some of the sub-pixels on the substrate 1 is not translationally coincident with the pattern of the orthographic projection of the opening 103 of another of the sub-pixels on the substrate 1, and the pattern of the orthographic projection of the anode structure 413 of all of the sub-pixels on the substrate 1 is translationally coincident.

[0194] Referring to FIG. 4A For the nth row of sub-pixels 011 and the n+2th row of sub-pixels 012, in the nth row of sub-pixels 011, the first type of opening and the second type of opening are arranged alternately in the first arrangement direction X, and in the n+2th row of sub-pixels 012, the third type of opening and the fourth type of opening are arranged alternately in the first arrangement direction.

[0195] For the mth column of sub-pixels and the m+2th column of sub-pixels, in the mth column of sub-pixels, the first type of opening and the second type of opening are arranged alternately in the second arrangement direction, and in the m+2th column of sub-pixels, the third type of opening and the fourth type of opening are arranged alternately in the second arrangement direction.

[0196] Continuing to refer to FIG. 4A For at least one type of same color sub-pixel (e.g., third color sub-pixel SP3) of the plurality of sub-pixels, the arrangement pitch of the pattern of the orthographic projection of the openings 103 of the plurality of same color sub-pixels on the substrate 1 in the first arrangement direction X is a first arrangement pitch pt1, and the arrangement pitch of the pattern of the orthographic projection of the anode structures 413 of the plurality of same color sub-pixels on the substrate 1 in the first arrangement direction X is a second arrangement pitch pt2, the first arrangement pitch pt1 being greater than the second arrangement pitch pt2.

[0197] Note that, in the present text, the expressions "arrangement pitch", "pitch", and the like are used to indicate the arrangement period of periodically arranged structures, elements, or components in a certain direction, which can be expressed by the center distance of the centers of two adjacent structures, elements, or components in the certain direction.

[0198] Note that, in the present text, the expression "second arrangement pitch" indicates the minimum center distance in the first arrangement direction X of the pattern of the orthogonal projection onto the substrate substrate of the anode structures having the same shape (i.e., being translationally coincident), for example, the sub-pixels to which the anode structures having the same shape (i.e., being translationally coincident) belong can be located in different sub-pixel rows. For example, in the example shown in FIG. 6, the second arrangement pitch pt2 is the minimum center distance in the first arrangement direction X of the pattern of the orthogonal projection onto the substrate substrate of the anode structure of one first-color sub-pixel in the nth row of sub-pixels 011 and the anode structure of another first-color sub-pixel in the nth+2 row of sub-pixels 012. FIG. 4A

[0199] For at least one kind of sub-pixels (e.g., third-color sub-pixels SP3) of the plurality of sub-pixels, the arrangement pitch in the second arrangement direction Y of the pattern of the orthogonal projection onto the substrate substrate 1 of the openings 103 of the plurality of sub-pixels of the same color is a third arrangement pitch pt3, and the arrangement pitch in the second arrangement direction Y of the pattern of the orthogonal projection onto the substrate substrate 1 of the anode structures 413 of the plurality of sub-pixels of the same color is a fourth arrangement pitch pt4, the third arrangement pitch pt3 being greater than the fourth arrangement pitch pt4.

[0200] Note that, in the present text, the expression "fourth arrangement pitch" indicates the minimum center distance in the second arrangement direction Y of the pattern of the orthogonal projection onto the substrate substrate of the anode structures having the same shape (i.e., being translationally coincident), for example, the sub-pixels to which the anode structures having the same shape (i.e., being translationally coincident) belong can be located in different sub-pixel columns. For example, in the example shown in FIG. 6, the fourth arrangement pitch pt4 is the minimum center distance in the second arrangement direction Y of the pattern of the orthogonal projection onto the substrate substrate of the anode structure of one first-color sub-pixel in the mth column of sub-pixels 031 and the anode structure of another first-color sub-pixel in the mth+2 column of sub-pixels 032. FIG. 4A

[0201] ​​For at least one kind of color of sub-pixels (for example, third color sub-pixels SP3) in the plurality of sub-pixels, the arrangement pitch of the pattern of the orthographic projection of the plurality of the same color of sub-pixels' openings 103 on the substrate 1 in the first direction M1 is a first pitch pt11, and the arrangement pitch of the pattern of the orthographic projection of the plurality of the same color of sub-pixels' anode structures 413 on the substrate 1 in the first direction M1 is a second pitch pt12, and the first pitch pt11 is greater than the second pitch pt12.

[0202] For at least one kind of color of sub-pixels (for example, third color sub-pixels SP3) in the plurality of sub-pixels, the arrangement pitch of the pattern of the orthographic projection of the plurality of the same color of sub-pixels' openings 103 on the substrate 1 in the second direction M2 is a third pitch pt13, and the arrangement pitch of the pattern of the orthographic projection of the plurality of the same color of sub-pixels' anode structures 413 on the substrate 1 in the second direction M2 is a fourth pitch pt14, and the third pitch pt13 is greater than the fourth pitch pt14.

[0203] In embodiments of the present disclosure, the first arrangement pitch pt1 is m times the second arrangement pitch pt2, m is greater than or equal to 1.5. For example, in the embodiment shown in FIG. 1, the first arrangement pitch pt1 is about 4 times the second arrangement pitch pt2. FIG. 4A In other embodiments, the first arrangement pitch pt1 is about 2 times the second arrangement pitch pt2.

[0204] The third arrangement pitch pt3 is n times the fourth arrangement pitch pt4, n is greater than or equal to 1.5. For example, in the embodiment shown in FIG. 1, the third arrangement pitch pt3 is about 4 times the fourth arrangement pitch pt4. FIG. 4A In other embodiments, the third arrangement pitch pt3 is about 2 times the fourth arrangement pitch pt4.

[0205] The first pitch pt11 is p times the second pitch pt12, p is greater than or equal to 1.5. For example, in the embodiment shown in FIG. 1, the first pitch pt11 is about 2 times the second pitch pt12. FIG. 4A In other embodiments, the first pitch pt11 is about 2 times the second pitch pt12.

[0206] The third pitch pt13 is q times the fourth pitch pt14, q is greater than or equal to 1.5. For example, in the embodiment shown in FIG. 1, the third pitch pt13 is about 2 times the fourth pitch pt14. FIG. 4A In other embodiments, the third pitch pt13 is about 2 times the fourth pitch pt14.

[0207] In the embodiments of the present disclosure, the anode structure corresponding to the opening or the light-emitting region with an irregular shape is designed to have a regular shape, such as a rectangular shape, a circular shape, or the like. In this way, the arrangement period (i.e., the arrangement pitch) of the anode structure can be reduced, so that the interference fringes are invisible to the human eye. For example, referring to FIG. 6 In this way, the use experience of the display substrate can be significantly improved.

[0208] For example, referring to FIG. 8C The opening of at least some of the sub-pixels (e.g., the third color sub-pixel SP3) has an irregular shape, such as a D-shape, in the orthographic projection on the substrate substrate 1. In contrast, the third anode structure 403 of the third color sub-pixel SP3 has a regular shape, such as a rectangular shape or a circular-rectangular shape, in the orthographic projection on the substrate substrate 1.

[0209] For example, referring to FIG. 8D The opening of at least some of the sub-pixels (e.g., the third color sub-pixel SP3) has an irregular shape, such as a D-shape, in the orthographic projection on the substrate substrate 1. In contrast, the third anode structure 403 of the third color sub-pixel SP3 has a regular shape, such as a circular shape, in the orthographic projection on the substrate substrate 1.

[0210] It should be understood that FIG. 8C and FIG. 8D The embodiments shown in FIG. 4A or FIG. 8A should have the same advantages as the embodiments shown in .

[0211] In the following, some exemplary embodiments of the present disclosure will be described in more detail with reference to FIG. 9A to FIG. 11B It should be noted that in the following, the differences from the above embodiments will be mainly described, and the embodiments described above can be combined with the following embodiments as appropriate without conflict.

[0212] For example, referring to FIG. 9A and FIG. 9B For at least some of the sub-pixels, the orthographic projection of the opening on the substrate substrate is in the shape of a water droplet, and the orthographic projection of the anode structure on the substrate substrate is in the shape of an American football.

[0213] For example, in FIG. 9AIn the illustrated embodiment, the at least some sub-pixels include first color sub-pixels SP1. For at least some first color sub-pixels SP1, the opening (i.e., first opening) 101 of each sub-pixel includes a main portion 101 A and an auxiliary portion 101B, the main portion 101 A of the opening has a circular shape in a normal projection on the substrate 1, and the auxiliary portion 101B of the opening projects in a second direction M2 relative to the circular shape in the normal projection on the substrate 1. The anode structure (i.e., first anode structure) 401 covering the opening having the main portion 101 A and the auxiliary portion 101B includes one main portion 401 A and two auxiliary portions 401B, the main portion 401 A of the anode structure has a circular shape in a normal projection on the substrate 1, and the two auxiliary portions 401B of the anode structure project in the second direction M2 relative to the circular shape in the normal projection on the substrate 1, respectively toward opposite directions.

[0214] For example, the openings of the at least some first color sub-pixels SP1 include at least two types of openings, in different types of openings, the auxiliary portion 101B of the opening projects in a different direction relative to the main portion 101 A of the opening. For example, the at least two types of openings include a first type of opening 1101 and a second type of opening 1102. The auxiliary portion 101B of the first type of opening 1101 and the second type of opening 1102 projects in opposite directions relative to the main portion 101 A. For example, with reference to FIG. 9A In the first type of opening 1101, the auxiliary portion 101B projects in a direction toward a lower right direction relative to the main portion 101 A; in the second type of opening 1102, the auxiliary portion 101B projects in a direction toward an upper left direction relative to the main portion 101 A.

[0215] Likewise, the patterns of the normal projections on the substrate 1 of the respective anode structures covering different types of openings are in translational coincidence. For example, the patterns of the normal projections on the substrate of the respective anode structures covering the first type of opening 1101 and the second type of opening 1101 are in translational coincidence.

[0216] Continuing with reference to FIG. 9A and FIG. 9BThe at least some sub-pixels include third color sub-pixels SP3. For at least some third color sub-pixels SP3, the opening (i.e., third opening) 103 of each sub-pixel includes a main portion 103A and an auxiliary portion 103B, the main portion 103A of the opening has a circular shape in the orthogonal projection on the substrate 1, and the auxiliary portion 103B of the opening protrudes in the first direction M1 relative to the circular shape in the orthogonal projection on the substrate 1. The anode structure (i.e., third anode structure) 403 covering the opening having the main portion 103A and the auxiliary portion 103B includes one main portion 403A and two auxiliary portions 403B, the main portion 403A of the anode structure has a circular shape in the orthogonal projection on the substrate 1, and the two auxiliary portions 403B of the anode structure protrude in the first direction M1 relative to the circular shape in the orthogonal projection on the substrate 1, respectively, toward opposite directions.

[0217] For example, the openings of the at least some third color sub-pixels SP3 include at least two types of openings, in different types of openings, the auxiliary portion 101B of the opening protrudes in different directions relative to the main portion 101A of the opening. For example, the at least two types of openings include a third type of opening 1103 and a fourth type of opening 1104. The auxiliary portions 103B in the third type of opening 1103 and the fourth type of opening 1104 protrude in opposite directions relative to the main portions 103A. For example, referring to FIG. 11, in the third type of opening 1103, the auxiliary portion 103B protrudes in the lower left direction relative to the main portion 103A; in the fourth type of opening 1104, the auxiliary portion 103B protrudes in the upper right direction relative to the main portion 103A. FIG. 9A For example, the openings of the at least some third color sub-pixels SP3 include at least two types of openings, in different types of openings, the auxiliary portion 101B of the opening protrudes in different directions relative to the main portion 101A of the opening. For example, the at least two types of openings include a third type of opening 1103 and a fourth type of opening 1104. The auxiliary portions 103B in the third type of opening 1103 and the fourth type of opening 1104 protrude in opposite directions relative to the main portions 103A. For example, referring to FIG. 11, in the third type of opening 1103, the auxiliary portion 103B protrudes in the lower left direction relative to the main portion 103A; in the fourth type of opening 1104, the auxiliary portion 103B protrudes in the upper right direction relative to the main portion 103A.

[0218] Similarly, the patterns of the orthogonal projections on the substrate 1 of the respective anode structures covering different types of openings are in translational coincidence. For example, the patterns of the orthogonal projections on the substrate 1 of the respective anode structures covering the third type of opening 1103 and the fourth type of opening 1104 are in translational coincidence.

[0219] For example, the openings of the at least some third color sub-pixels SP3 include at least two types of openings, in different types of openings, the auxiliary portion 101B of the opening protrudes in different directions relative to the main portion 101A of the opening. For example, the at least two types of openings include a third type of opening 1103 and a fourth type of opening 1104. The auxiliary portions 103B in the third type of opening 1103 and the fourth type of opening 1104 protrude in opposite directions relative to the main portions 103A. For example, referring to FIG. 11, in the third type of opening 1103, the auxiliary portion 103B protrudes in the lower left direction relative to the main portion 103A; in the fourth type of opening 1104, the auxiliary portion 103B protrudes in the upper right direction relative to the main portion 103A. FIG. 9A For example, the openings of the at least some third color sub-pixels SP3 include at least two types of openings, in different types of openings, the auxiliary portion 101B of the opening protrudes in different directions relative to the main portion 101A of the opening. For example, the at least two types of openings include a third type of opening 1103 and a fourth type of opening 1104. The auxiliary portions 103B in the third type of opening 1103 and the fourth type of opening 1104 protrude in opposite directions relative to the main portions 103A. For example, referring to FIG. 11, in the third type of opening 1103, the auxiliary portion 103B protrudes in the lower left direction relative to the main portion 103A; in the fourth type of opening 1104, the auxiliary portion 103B protrudes in the upper right direction relative to the main portion 103A.

[0220] For example, the openings of the at least some third color sub-pixels SP3 include at least two types of openings, in different types of openings, the auxiliary portion 101B of the opening protrudes in different directions relative to the main portion 101A of the opening. For example, the at least two types of openings include a third type of opening 1103 and a fourth type of opening 1104. The auxiliary portions 103B in the third type of opening 1103 and the fourth type of opening 1104 protrude in opposite directions relative to the main portions 103A. For example, referring to FIG. 11, in the third type of opening 1103, the auxiliary portion 103B protrudes in the lower left direction relative to the main portion 103A; in the fourth type of opening 1104, the auxiliary portion 103B protrudes in the upper right direction relative to the main portion 103A.

[0221] In at least one row of first color sub-pixels SP1 arranged along the second direction M2, the first type openings 1101 and the second type openings 1102 are arranged alternately along the second direction M2.

[0222] For the nth row of sub-pixels and the n+2th row of sub-pixels, all third color sub-pixels SP3 in the nth row of sub-pixels comprise the third type openings 1103, and all third color sub-pixels SP3 in the n+2th row of sub-pixels comprise the fourth type openings 1104.

[0223] For the mth column of sub-pixels and the m+2th column of sub-pixels, all third color sub-pixels SP3 in the mth column of sub-pixels comprise the third type openings 1103, and all third color sub-pixels SP3 in the m+2th column of sub-pixels comprise the fourth type openings 1104.

[0224] In at least one row of third color sub-pixels SP3 arranged along the first direction M1, the third type openings 1103 and the fourth type openings 1104 are arranged alternately along the first direction M1.

[0225] Continuing to refer to FIG. 9A , the pattern of the orthographic projection on the substrate 1 of at least one of the first type openings 1101 and the second type openings 1102 is symmetric only with respect to a first axis of symmetry AX1 extending along the second direction M2. The pattern of the orthographic projection on the substrate 1 of each anode structure covering the first type openings 1101 and the second type openings 1102 is symmetric with respect to both the first axis of symmetry AX1 extending along the second direction M2 and a second axis of symmetry AX2 extending along the first direction M1.

[0226] The pattern of the orthographic projection on the substrate 1 of at least one of the third type openings 1103 and the fourth type openings 1104 is symmetric only with respect to the second axis of symmetry AX2 extending along the first direction M1. The pattern of the orthographic projection on the substrate 1 of each anode structure covering the third type openings 1103 and the fourth type openings 1104 is symmetric with respect to both the second axis of symmetry AX2 extending along the first direction M1 and the first axis of symmetry AX1 extending along the second direction M2.

[0227] For at least some of the plurality of sub-pixels, the geometric center of the pattern of the orthographic projection on the substrate of the anode structure of each sub-pixel does not coincide with the geometric center of the pattern of the orthographic projection on the substrate of the opening of that sub-pixel. For example, in reference to FIG. 9AFor at least some first color sub-pixels SP1 and at least some third color sub-pixels SP3, the geometric center O2 of the pattern of the orthographic projection of the anode structure on the substrate 1 is the intersection of the two axes of symmetry AX1 and AX2. The geometric center O1 of the pattern of the orthographic projection of the water-drop-shaped opening on the substrate 1 does not coincide with the intersection O2 of the two axes of symmetry AX1 and AX2.

[0228] With reference to FIG. 9A For at least some sub-pixels of the plurality of sub-pixels, the geometric center O2 of the pattern of the orthographic projection of the anode structure of at least one sub-pixel (e.g. first color sub-pixel SP1) on the substrate 1 is offset in the second direction M2 with respect to the geometric center O1 of the pattern of the orthographic projection of the opening 101 of the sub-pixel on the substrate 1; and / or, the geometric center O2 of the pattern of the orthographic projection of the anode structure of at least one sub-pixel (e.g. third color sub-pixel SP3) on the substrate 1 is offset in the first direction M1 with respect to the geometric center O1 of the pattern of the orthographic projection of the opening 103 of the sub-pixel on the substrate 1.

[0229] With reference to FIG. 9A For at least some sub-pixels of the same color (e.g. first color sub-pixels SP1 and third color sub-pixels SP3) of the plurality of sub-pixels, the arrangement pitch in the second arrangement direction Y of the pattern of the orthographic projection of the openings 101, 103 of the plurality of sub-pixels of the same color on the substrate 1 is a third arrangement pitch pt3, and the arrangement pitch in the second arrangement direction Y of the pattern of the orthographic projection of the anode structures 401, 403 of the plurality of sub-pixels of the same color on the substrate 1 is a fourth arrangement pitch pt4, the third arrangement pitch pt3 being greater than the fourth arrangement pitch pt4.

[0230] For at least some sub-pixels of the same color (e.g. third color sub-pixels SP3) of the plurality of sub-pixels, the arrangement pitch in the first direction M1 of the pattern of the orthographic projection of the openings 103 of the plurality of sub-pixels of the same color on the substrate 1 is a first pitch pt11, and the arrangement pitch in the first direction M1 of the pattern of the orthographic projection of the anode structures 403 of the plurality of sub-pixels of the same color on the substrate 1 is a second pitch pt12, the first pitch pt11 being greater than the second pitch pt12.

[0231] For at least one kind of color of sub-pixels (for example, first color sub-pixels SP1) in the plurality of sub-pixels, the arrangement pitch of the pattern of the orthographic projection of the plurality of the same color of sub-pixels' openings 101 on the substrate 1 in the second direction M2 is a third pitch pt13, and the arrangement pitch of the pattern of the orthographic projection of the plurality of the same color of sub-pixels' anode structures 401 on the substrate 1 in the second direction M2 is a fourth pitch pt14, and the third pitch pt13 is greater than the fourth pitch pt14.

[0232] In embodiments of the present disclosure, the third arrangement pitch pt3 is n times the fourth arrangement pitch pt4, and n is greater than or equal to 1.5. For example, in the embodiment shown, the third arrangement pitch pt3 is about 2 times the fourth arrangement pitch pt4. FIG. 9A

[0233] The first pitch pt11 is p times the second pitch pt12, and p is greater than or equal to 1.5. For example, in the embodiment shown, the first pitch pt11 is about 2 times the second pitch pt12. FIG. 9A

[0234] The third pitch pt13 is q times the fourth pitch pt14, and q is greater than or equal to 1.5. For example, in the embodiment shown, the third pitch pt13 is about 2 times the fourth pitch pt14. FIG. 9A

[0235] In embodiments of the present disclosure, for the openings or light-emitting areas with special shapes, the corresponding anode structures are designed to be the same shape, which can reduce the arrangement period (i.e., arrangement pitch) of the anode structures, so that the interference fringes are not visible to the human eye, thereby significantly improving the use experience of the display substrate.

[0236] Referring to FIG. 10A and FIG. 10B For at least some of the plurality of sub-pixels, the orthographic projection of the opening on the substrate is a polygon, and the orthographic projection of the anode structure on the substrate is a rectangle. For example, for at least some of the plurality of sub-pixels, the pattern of the orthographic projection of each sub-pixel's opening on the substrate is a polygon 500, such as a pentagon, which has a first vertex 501 and a first side 502 opposite the first vertex 501. The pattern of the orthographic projection of each sub-pixel's anode structure on the substrate is a rectangle.

[0237] For example, the at least some sub-pixels include first color sub-pixels SP1, second color sub-pixels SP2, and third color sub-pixels SP3.

[0238] ​​​The opening having the first vertex 501 and configured to define the light-emitting area of the same color sub-pixel includes at least two types of openings, in different types of openings, the vertex of the first vertex 501 points to the direction of the first side 502 opposite to it. For example, for the first color sub-pixel SP1, it includes a first type of opening 5001 and a second type of opening 5002. In the first type of opening 5001, the vertex of the first vertex 501 points to the direction of the first side 501 opposite to it along the second arrangement direction Y upward. In the second type of opening 5002, the vertex of the first vertex 501 points to the direction of the first side 501 opposite to it along the second arrangement direction Y downward. The second color sub-pixel SP2 or the third color sub-pixel SP3 has a similar configuration.

[0239] The pattern of the orthographic projection of each anode structure covering different types of openings on the substrate 1 is in translational coincidence.

[0240] For example, for the nth row of sub-pixels 011' and the nth+1 row of sub-pixels 012', in the nth row of sub-pixels 011', the openings of the same type (for example, the first type of opening 5001) of the at least two types of openings are arranged along the first arrangement direction X; in the nth+1 row of sub-pixels 012', the openings of the same type (for example, the second type of opening 5002) of the at least two types of openings are arranged along the first arrangement direction X.

[0241] For example, the two types of openings 5001, 5002 of adjacent sub-pixels of the same color are arranged in mirror image. Since the first color sub-pixel SP1, the second color sub-pixel SP2 and the third color sub-pixel SP3 form a regular arrangement, and the same color sub-pixels are very close in position, after the anode structure is completed respectively, the adjacent rows of sub-pixels of the same color can be formed by the same opening of the same metal mask plate.

[0242] For the nth row of sub-pixels 011' and the nth+1 row of sub-pixels 012', the orthographic projection of the anode structures of the two sub-pixels in the same column on the substrate is in translational coincidence.

[0243] For example, in FIG. 10A In the embodiment shown, the geometric centers of the first color sub-pixels SP1 in the same row or the same column are located on the same straight line, the geometric centers of the second color sub-pixels SP2 in the same row or the same column are located on the same straight line, and the geometric centers of the third color sub-pixels SP3 in the same row or the same column are located on the same straight line. Based on such a setting, the uniform distribution of sub-pixels of different colors on the entire display panel can be achieved, the uniformity of the display effect is ensured, a higher quality picture display is obtained, and the preparation process of the pixel structure is simplified.

[0244] Referring to FIG. 10A For at least one color of sub-pixels in the plurality of sub-pixels, the arrangement pitch of the pattern of the orthographic projection of the plurality of color of sub-pixels' openings 101, 102, 103 on the substrate 1 in the second arrangement direction Y is a third arrangement pitch pt3, and the arrangement pitch of the pattern of the orthographic projection of the plurality of color of sub-pixels' anode structures 401, 402, 403 on the substrate 1 in the second arrangement direction Y is a fourth arrangement pitch pt4, the third arrangement pitch pt3 is greater than the fourth arrangement pitch pt4.

[0245] In embodiments of the present disclosure, the third arrangement pitch pt3 is n times of the fourth arrangement pitch pt4, n is greater than or equal to 1.5. For example, in the embodiment shown in FIG. 6, the third arrangement pitch pt3 is about 2 times of the fourth arrangement pitch pt4. FIG. 10A

[0246] In embodiments of the present disclosure, for the openings or light emitting areas with special shapes, the corresponding anode structures are designed to be the same shape, which can reduce the arrangement period (i.e. arrangement pitch) of the anode structures, so that the interference fringes are invisible to the human eye, thereby significantly improving the use experience of the display substrate.

[0247] Referring to FIG. 11A and FIG. 11B For at least some of the sub-pixels in the plurality of sub-pixels, the opening includes two sub-openings arranged in mirror image, each of the sub-openings' orthographic projection on the substrate is a polygon, such as a triangle; the anode structure's orthographic projection on the substrate is a polygon, such as a quadrilateral, a rhombus, or a rhomboid. For example, each of the sub-openings' orthographic projection on the substrate is a polygon, such as a triangle, the polygon has a first vertex 601 and a first side 602 opposite to the first vertex 601.

[0248] For example, the at least some of the sub-pixels include first color sub-pixels SP1.

[0249] The openings with the first vertex 601 and configured to define the light emitting area of the same color sub-pixels include at least two types of openings, in different types of openings, the direction of the first vertex 601 pointing to the first side 602 opposite to it is different. For example, for the first color sub-pixels SP1, it includes a first type of opening 6001 and a second type of opening 6002.

[0250] ​In the first type of opening 6001, two sub-openings 60011, 60012 are included, the vertex of the first vertex angle 601 of one sub-opening 60011 points to the direction of the first side 602 opposite to it, which is downward along the second arrangement direction Y. The vertex of the first vertex angle 601 of the other sub-opening 60012 points to the direction of the first side 601 opposite to it, which is upward along the second arrangement direction Y. The two sub-openings 60011, 60012 are mirror-symmetrical relative to the first axis of symmetry AX1 extending along the first arrangement direction X.

[0251] In the second type of opening 6002, two sub-openings 60013, 60014 are included, the vertex of the first vertex angle 601 of one sub-opening 60013 points to the direction of the first side 602 opposite to it, which is rightward along the first arrangement direction X. The vertex of the first vertex angle 601 of the other sub-opening 60014 points to the direction of the first side 601 opposite to it, which is leftward along the first arrangement direction X. The two sub-openings 60013, 60014 are mirror-symmetrical relative to the second axis of symmetry AX2 extending along the second arrangement direction Y.

[0252] The patterns of the orthographic projections of the anode structures of different types of openings on the substrate 1 are in translational coincidence.

[0253] For example, for the nth row of sub-pixels 011 and the nth+2 row of sub-pixels 012, in the nth row of sub-pixels 011, openings of one same type of the at least two types of openings (for example, the first type of opening 6001) are arranged along the first arrangement direction X; in the nth+2 row of sub-pixels 012, openings of another same type of the at least two types of openings (for example, the second type of opening 6002) are arranged along the first arrangement direction X.

[0254] For the nth row of sub-pixels 011 and the nth+2 row of sub-pixels 012, the patterns of the orthographic projections of the anode structures of two sub-pixels in the same column on the substrate are in translational coincidence.

[0255] With reference to FIG. 11A For at least one same color of sub-pixels in the plurality of sub-pixels, the arrangement pitch of the patterns of the orthographic projections of the openings 101 of the plurality of same color of sub-pixels on the substrate 1 along the second arrangement direction Y is a third arrangement pitch pt3, the arrangement pitch of the patterns of the orthographic projections of the anode structures 401 of the plurality of same color of sub-pixels on the substrate 1 along the second arrangement direction Y is a fourth arrangement pitch pt4, and the third arrangement pitch pt3 is greater than the fourth arrangement pitch pt4.

[0256] In embodiments of the present disclosure, the third arrangement pitch pt3 is n times of the fourth arrangement pitch pt4, and n is greater than or equal to 1.5. For example, in FIG. 11AIn the illustrated embodiment, the third arrangement pitch pt3 is about 2 times the fourth arrangement pitch pt4.

[0257] In embodiments of the present disclosure, for an opening or a light-emitting region with a special shape, the corresponding anode structure is designed to have the same shape, which can reduce the arrangement period (i.e., arrangement pitch) of the anode structure, so that the interference fringes are invisible to the human eye, thereby significantly improving the use experience of the display substrate.

[0258] Referring back to FIGS. 1 and 2, at least some embodiments of the present disclosure also provide a display device. The display device can include the display substrate as described above.

[0259] The display device can include any device or product having a display function. For example, the display device can be a smartphone, a mobile phone, an e-book reader, a desktop PC (personal computer), a laptop PC, a netbook PC, a PDA (personal digital assistant), a PMP (portable multimedia player), a digital audio player, a mobile medical device, a camera, a wearable device (e.g., a head-mounted device, electronic clothing, an electronic bracelet, an electronic necklace, electronic accessories, an electronic tattoo, or a smart watch), a television, etc.

[0260] Although some embodiments of the general inventive concept of the present disclosure have been shown and described, it will be understood by those having ordinary skill in the art that changes can be made in these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined by the claims and their equivalents.

Claims

1. A display substrate, comprising: Substrate; Multiple sub-pixels are arrayed on the substrate along a first arrangement direction and a second arrangement direction, and the multiple sub-pixels include multiple light-emitting regions; A first electrode layer is located on the substrate, and the first electrode layer includes a plurality of anode structures; as well as A pixel defining layer is located on the side of the first electrode layer away from the substrate, and the pixel defining layer includes a plurality of openings to define the plurality of light-emitting regions. Specifically, for at least some of the plurality of sub-pixels, the orthographic projection of the opening of each sub-pixel onto the substrate falls within the orthographic projection of the anode structure of the sub-pixel onto the substrate; the shape of the orthographic projection of the opening of each sub-pixel onto the substrate is different from the shape of the orthographic projection of the anode structure of the sub-pixel onto the substrate; and the number of axes of symmetry of the orthographic projection of the anode structure of each sub-pixel onto the substrate is greater than the number of axes of symmetry of the orthographic projection of the opening of the sub-pixel onto the substrate. Furthermore, for at least some of the sub-pixels, the pattern of the orthographic projection of the opening of the sub-pixel onto the substrate has a first axis of symmetry, a first vertex, and a second vertex, wherein the first vertex and the second vertex are both located on the first axis of symmetry and are arranged opposite to each other. The first axis of symmetry and the orthographic projection of the sub-pixel's anode structure onto the substrate have a first intersection point and a second intersection point, the first intersection point being adjacent to the first vertex and the second intersection point being adjacent to the second vertex; and In the direction of extension of the first axis of symmetry, the first distance between the first vertex and the first intersection point is not equal to the second distance between the second vertex and the second intersection point.

2. The display substrate according to claim 1, wherein, For at least some of the plurality of sub-pixels, the orthographic projection of the anode structure of each sub-pixel onto the substrate is non-proportionally magnified relative to the orthographic projection of the opening of that sub-pixel onto the substrate.

3. The display substrate according to claim 1 or 2, wherein, For at least some of the plurality of sub-pixels, the geometric center of the orthographic projection of the anode structure of each sub-pixel onto the substrate does not coincide with the geometric center of the orthographic projection of the opening of the sub-pixel onto the substrate.

4. The display substrate according to claim 3, wherein, For at least some of the plurality of sub-pixels, the geometric center of the orthographic projection of the anode structure of at least one sub-pixel onto the substrate is offset relative to the geometric center of the orthographic projection of the opening of the sub-pixel onto the substrate in a first arrangement direction. And / or, the geometric center of the orthographic projection of the anode structure of at least one sub-pixel onto the substrate is offset in a second arrangement direction relative to the geometric center of the orthographic projection of the opening of the sub-pixel onto the substrate.

5. The display substrate according to claim 4, wherein, For at least some of the plurality of sub-pixels, the geometric center of the orthographic projection of the anode structure of at least one sub-pixel onto the substrate is offset in a first direction relative to the geometric center of the orthographic projection of the opening of the sub-pixel onto the substrate, the first direction being inclined relative to each of the first arrangement direction and the second arrangement direction. And / or, For at least some of the plurality of sub-pixels, the geometric center of the orthographic projection of the anode structure of at least one sub-pixel onto the substrate is offset in a second direction relative to the geometric center of the orthographic projection of the opening of the sub-pixel onto the substrate. The second direction is inclined relative to each of the first arrangement direction and the second arrangement direction, and the second direction has an angle with the first direction.

6. The display substrate according to claim 1, wherein, In the first cross-sectional view, the pixel defining layers on both sides of the opening of the sub-pixel respectively cover a portion of the anode structure of the sub-pixel. The width of the portion of the anode structure covered by the pixel defining layer on one side of the opening of the sub-pixel is not equal to the width of the other portion of the anode structure covered by the pixel defining layer on the other side of the opening of the sub-pixel. The first cross-section is perpendicular to the surface of the first electrode layer that contacts the pixel defining layer, and the first axis of symmetry is located within the first cross-section.

7. The display substrate according to claim 3, wherein, The plurality of sub-pixels includes sub-pixels in the nth row and sub-pixels in the (n+2)th row, and the sub-pixels in the nth row and the (n+2)th row are arranged along a second arrangement direction; as well as The nth row of sub-pixels includes a first sub-pixel, and the (n+2)th row of sub-pixels includes a second sub-pixel. The second sub-pixel is the sub-pixel that is closest to the first sub-pixel in the first arrangement direction and has the same color as the first sub-pixel among the multiple sub-pixels in the (n+2)th row of sub-pixels. The orthographic projection of the opening of the first sub-pixel onto the substrate and the orthographic projection of the opening of the second sub-pixel onto the substrate are not translated and coincident. The orthographic projection of the anode structure of the first sub-pixel onto the substrate and the orthographic projection of the anode structure of the second sub-pixel onto the substrate are translated and coincident.

8. The display substrate according to claim 7, wherein, Among the sub-pixels of the same color in the nth row and the (n+2)th row, the orth projection of the opening of at least a portion of the sub-pixels onto the substrate is non-translationally coincident with the orth projection of the opening of another portion of the sub-pixels onto the substrate, and the orth projection of the anode structure of all sub-pixels onto the substrate is translationally coincident.

9. The display substrate according to claim 7 or 8, wherein, The plurality of sub-pixels includes a column m sub-pixel and a column m+2 sub-pixel, and the column m sub-pixel and the column m+2 sub-pixel are arranged along a first arrangement direction; as well as The m-th column sub-pixel includes a third sub-pixel, and the (m+2)-th column sub-pixel includes a fourth sub-pixel. The fourth sub-pixel is the sub-pixel that is closest to the third sub-pixel in the second arrangement direction and has the same color as the third sub-pixel among the multiple sub-pixels of the (m+2)-th column sub-pixel. The orthographic projection of the opening of the third sub-pixel onto the substrate and the orthographic projection of the opening of the fourth sub-pixel onto the substrate are not translated and coincident. The orthographic projection of the anode structure of the third sub-pixel onto the substrate and the orthographic projection of the anode structure of the fourth sub-pixel onto the substrate are translated and coincident.

10. The display substrate according to claim 9, wherein, Among the sub-pixels of the same color in the m-th column and the (m+2)-th column, the orth projection of the opening of at least a portion of the sub-pixels onto the substrate is non-translationally coincident with the orth projection of the opening of another portion of the sub-pixels onto the substrate, and the orth projection of the anode structure of all sub-pixels onto the substrate is translationally coincident.

11. The display substrate according to claim 10, wherein, For at least one sub-pixel of the same color among the plurality of sub-pixels, the arrangement pitch of the orthographic projection of the openings of the plurality of sub-pixels of the same color onto the substrate in the first arrangement direction is the first arrangement pitch, and the arrangement pitch of the orthographic projection of the anode structures of the plurality of sub-pixels of the same color onto the substrate in the first arrangement direction is the second arrangement pitch, wherein the first arrangement pitch is greater than the second arrangement pitch; and / or, For at least one sub-pixel of the same color among the plurality of sub-pixels, the arrangement pitch of the orthographic projection of the openings of the plurality of sub-pixels of the same color onto the substrate in the second arrangement direction is the third arrangement pitch, and the arrangement pitch of the orthographic projection of the anode structures of the plurality of sub-pixels of the same color onto the substrate in the second arrangement direction is the fourth arrangement pitch, wherein the third arrangement pitch is greater than the fourth arrangement pitch; and / or, For at least one of the plurality of sub-pixels of the same color, the arrangement pitch of the pattern of the orthographic projection of the openings of the plurality of sub-pixels of the same color onto the substrate in the first direction is the first pitch, and the arrangement pitch of the pattern of the orthographic projection of the anode structure of the plurality of sub-pixels of the same color onto the substrate in the first direction is the second pitch, and the first pitch is greater than the second pitch. And / or, For at least one sub-pixel of the same color among the plurality of sub-pixels, the arrangement pitch of the orthographic projection of the openings of the plurality of sub-pixels of the same color onto the substrate in the second direction is a third pitch, and the arrangement pitch of the orthographic projection of the anode structures of the plurality of sub-pixels of the same color onto the substrate in the second direction is a fourth pitch, wherein the third pitch is greater than the fourth pitch.

12. The display substrate according to claim 11, wherein, The first arrangement pitch is m times the second arrangement pitch, where m is greater than or equal to 1.5; and / or, The third arrangement pitch is n times the fourth arrangement pitch, where n is greater than or equal to 1.5; and / or, The first pitch is p times the second pitch, where p is greater than or equal to 1.5; and / or, The third pitch is q times the fourth pitch, where q is greater than or equal to 1.

5.

13. The display substrate according to claim 4, wherein, For at least some of the plurality of sub-pixels, the orthographic projection of the opening of each sub-pixel onto the substrate is a polygon with at least one vertex removed; the orthographic projection of the anode structure of each sub-pixel onto the substrate is either a polygon or a circle.

14. The display substrate according to claim 13, wherein, The pattern of the opening having the shape of a polygon after at least one vertex has been removed includes a plurality of corners, the plurality of corners including a first corner and a second corner, the first corner being the corner formed by removing a vertex between two sides of the polygon, and the second corner being the corner opposite to the first corner.

15. The display substrate according to claim 14, wherein, The pattern of the opening having the shape of a polygon after at least one vertex has a first axis of symmetry, a first vertex and a second vertex, the first vertex being the point where the first axis of symmetry intersects with the first corner, and the second vertex being the point where the first axis of symmetry intersects with the second corner. The first axis of symmetry and the orthographic projection of the anode structure of the sub-pixel onto the substrate have a first intersection point and a second intersection point, the first intersection point being adjacent to the first vertex and the second intersection point being adjacent to the second vertex; as well as In the direction of extension of the first axis of symmetry, the first distance between the first vertex and the first intersection point is greater than the second distance between the second vertex and the second intersection point.

16. The display substrate according to claim 14 or 15, wherein, The opening having the first corner is configured to define a light-emitting area for at least one color sub-pixel.

17. The display substrate according to claim 16, wherein, The opening having the first corner and configured to define a light-emitting area of ​​the same color sub-pixel includes at least two types of openings, in which the vertex of the first corner points in a different direction to the vertex of its opposite corner. as well as The orthographic projections of the various anode structures covering different types of openings onto the substrate are translated and coincident.

18. The display substrate according to claim 17, wherein, The at least two types of openings include a first type of opening, a second type of opening, a third type of opening, and a fourth type of opening; In the first type of opening and the second type of opening, the vertices of the first corners point in opposite directions to the vertices of the second corners; in the third type of opening and the fourth type of opening, the vertices of the first corners point in opposite directions to the vertices of the second corners. as well as The orthographic projections of the various anode structures covering the first type of opening, the second type of opening, the third type of opening, and the fourth type of opening on the substrate are translated and coincident.

19. The display substrate according to claim 18, wherein, For the nth row of sub-pixels and the (n+2)th row of sub-pixels, in the nth row of sub-pixels, the first type of opening and the second type of opening are alternately arranged in the first arrangement direction; in the (n+2)th row of sub-pixels, the third type of opening and the fourth type of opening are alternately arranged in the first arrangement direction; and / or, For the m-th column sub-pixel and the (m+2)-th column sub-pixel, in the m-th column sub-pixel, the first type of opening and the second type of opening are alternately arranged in the second arrangement direction; in the (m+2)-th column sub-pixel, the third type of opening and the fourth type of opening are alternately arranged in the second arrangement direction.

20. The display substrate according to claim 19, wherein, For at least one first type opening, two openings adjacent to the first type opening in a first arrangement direction are second type openings, two openings adjacent to the first type opening in a second arrangement direction are second type openings, two openings adjacent to the first type opening in a first direction are third type openings, and two openings adjacent to the first type opening in a second direction are fourth type openings.

21. The display substrate according to claim 4, wherein, For at least some of the first color sub-pixels among the plurality of sub-pixels, the opening of each sub-pixel includes a main portion and an auxiliary portion, the orthographic projection of the main portion of the opening on the substrate is circular, and the orthographic projection of the auxiliary portion of the opening on the substrate protrudes in a second direction relative to the circle. as well as The anode structure covering the opening having the main portion and the auxiliary portions includes a main portion and two auxiliary portions. The orthographic projection of the main portion of the anode structure onto the substrate is circular, and the orthographic projections of the two auxiliary portions of the anode structure onto the substrate protrude in opposite directions relative to the circle in a second direction.

22. The display substrate according to claim 21, wherein, The openings of the at least some first color sub-pixels include at least two types of openings, in which the auxiliary portion of the opening protrudes in a different direction relative to the main portion of the opening, and the orthographic projections of the respective anode structures covering the different types of openings on the substrate are translated and coincident.

23. The display substrate according to claim 22, wherein, The at least two types of openings include a first type of opening and a second type of opening; The auxiliary portions in the first type of opening and the second type of opening have opposite protrusion directions relative to the main body portion; as well as The orthographic projections of the respective anode structures covering the first type of opening and the second type of opening on the substrate are translated and coincident.

24. The display substrate according to claim 23, wherein, For at least some of the third color sub-pixels among the plurality of sub-pixels, the opening of each sub-pixel includes a main portion and an auxiliary portion, wherein the orthographic projection of the main portion of the opening on the substrate is circular, and the orthographic projection of the auxiliary portion of the opening on the substrate protrudes relative to the circle in a first direction. as well as The anode structure covering the opening having the main portion and the auxiliary portions includes a main portion and two auxiliary portions. The orthographic projection of the main portion of the anode structure onto the substrate is circular, and the orthographic projections of the two auxiliary portions of the anode structure onto the substrate protrude in opposite directions relative to the circle in a first direction.

25. The display substrate according to claim 24, wherein, The openings of the at least some third color sub-pixels include at least two types of openings, in which the auxiliary portion of the opening protrudes in a different direction relative to the main portion of the opening, and the orthographic projections of the respective anode structures covering the different types of openings on the substrate are translated and coincident.

26. The display substrate according to claim 25, wherein, The at least two types of openings include a third type of opening and a fourth type of opening; The auxiliary portions in the third type of opening and the fourth type of opening have opposite protrusion directions relative to the main body portion; as well as The orthographic projections of the respective anode structures covering the third type of opening and the fourth type of opening on the substrate are translated and coincident.

27. The display substrate according to claim 26, wherein, For sub-pixels in the nth row and the (n+2)th row, all first-color sub-pixels in the nth row include a first-type opening, and all first-color sub-pixels in the (n+2)th row include a second-type opening; and / or, For the m-th column sub-pixel and the (m+2)-th column sub-pixel, all first-color sub-pixels in the m-th column sub-pixel include a first-type opening, and all first-color sub-pixels in the (m+2)-th column sub-pixel include a second-type opening; and / or, In at least one row of first color subpixels arranged along the second direction, first type openings and second type openings are alternately arranged along the second direction.

28. The display substrate according to claim 27, wherein, For sub-pixels in the nth row and the (n+2)th row, all third-color sub-pixels in the nth row include third-type openings, and all third-color sub-pixels in the (n+2)th row include fourth-type openings; and / or, For the m-th column sub-pixel and the (m+2)-th column sub-pixel, all third-color sub-pixels in the m-th column sub-pixel include a third-type opening, and all third-color sub-pixels in the (m+2)-th column sub-pixel include a fourth-type opening; and / or, In at least one row of third color subpixels arranged along the first direction, third type openings and fourth type openings are alternately arranged along the first direction.

29. The display substrate according to claim 28, wherein, The orthographic projection of at least one of the first type of opening and the second type of opening onto the substrate is symmetrical only with respect to a first axis of symmetry extending along the second direction. The orthographic projection of each anode structure covering the first type of opening and the second type of opening onto the substrate is symmetrical with respect to both a first axis of symmetry extending along the second direction and a second axis of symmetry extending along the first direction; and / or, The orthographic projection of at least one of the third type of opening and the fourth type of opening onto the substrate is symmetrical only with respect to a second axis of symmetry extending along the first direction. The orthographic projection of each anode structure covering the third type of opening and the fourth type of opening onto the substrate is symmetrical with respect to both the second axis of symmetry extending along the first direction and the first axis of symmetry extending along the second direction.

30. The display substrate according to claim 4, wherein, For at least some of the plurality of sub-pixels, the orthographic projection of the opening of each sub-pixel onto the substrate is a polygon, the polygon having a first vertex and a first side, the first side being opposite to the first vertex; the orthographic projection of the anode structure of each sub-pixel onto the substrate is a rectangle.

31. The display substrate according to claim 30, wherein, The opening having the first apex and configured to define a light-emitting area of ​​the same color sub-pixel includes at least two types of openings, in which the vertex of the first apex points in a different direction to the first side opposite it; as well as The orthographic projections of the various anode structures covering different types of openings onto the substrate are translated and coincident.

32. The display substrate according to claim 31, wherein, For the nth row sub-pixel and the (n+1)th row sub-pixel, in the nth row sub-pixel, at least two types of openings of the same type are arranged in the first arrangement direction; in the (n+1)th row sub-pixel, the other type of opening of the same type is arranged in the first arrangement direction. as well as For sub-pixels in the nth row and the (n+1)th row, the orth projection of the anode structures of two sub-pixels in the same column onto the substrate is a translational coincidence.

33. The display substrate according to claim 4, wherein, For at least some of the plurality of sub-pixels, the opening of each sub-pixel presents two sub-openings arranged in a mirror image, and the orthographic projection of the anode structure of the sub-pixel on the substrate covers the orthographic projection of the two sub-openings arranged in a mirror image on the substrate. The orthographic projection of each of the two sub-openings onto the substrate is a polygon, the polygon having a first vertex and a first side, the first side being opposite to the first vertex.

34. The display substrate according to claim 33, wherein, The opening having the first apex and configured to define a light-emitting area of ​​the same color sub-pixel includes at least two types of openings, in which the vertex of the first apex points in a different direction to the first side opposite it; as well as The orthographic projections of the various anode structures covering different types of openings onto the substrate are translated and coincident.

35. The display substrate according to claim 34, wherein, For the nth row sub-pixel and the (n+2)th row sub-pixel, in the nth row sub-pixel, at least two types of openings of the same type are arranged in the first arrangement direction; in the (n+2)th row sub-pixel, the other type of opening of the same type is arranged in the first arrangement direction. as well as For sub-pixels in the nth row and the (n+2)th row, the orth projection of the anode structures of two sub-pixels in the same column onto the substrate is a translational coincidence.

36. A display device, wherein, The display device includes a display substrate according to any one of claims 1 to 35.

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