Display substrate and display apparatus

Abstract

A display substrate and a display apparatus. The display substrate comprises a base substrate and a plurality of sub-pixels, wherein the plurality of sub-pixels are divided into a plurality of sub-pixel groups, each sub-pixel group comprises a first color sub-pixel, a second color sub-pixel and a third color sub-pixel, and the plurality of sub-pixel groups comprise a first sub-pixel group, a second sub-pixel group and a third sub-pixel group; orthographic projections, on the base substrate, of light-emitting functional layers of the third color sub-pixels in the first sub-pixel group and the second sub-pixel group each comprise a first side and a second side, and four endpoints of the first side and the second side enclose a spacing region; and orthographic projections, on the base substrate, of light-emitting functional layers of at least one of the two first color sub-pixels and the two second color sub-pixels in the first sub-pixel group and the second sub-pixel group are partially located in the spacing region. Therefore, a spacing region can be effectively used to increase the aperture ratio of sub-pixels and the overall aperture ratio of a sub-pixel group to which the sub-pixels belong.

Description

Display substrate and display device Technical Field

[0001] Embodiments of this disclosure relate to a display substrate and a display device. Background Technology

[0002] Organic Light Emitting Diode (OLED) displays are gaining increasing attention as a new type of flat panel display. Due to their characteristics such as active light emission, high brightness, high resolution, wide viewing angle, fast response speed, low power consumption, and flexibility, they have become a popular mainstream display product in the market. As products continue to evolve, customers are demanding higher resolution and lower power consumption, necessitating the development of high-efficiency, low-voltage, and long-life OLED displays.

[0003] Summary of the Invention

[0004] At least one embodiment of this disclosure provides a display substrate, comprising: a substrate substrate, and a plurality of sub-pixels located on the substrate substrate. Each sub-pixel includes a light-emitting element, the light-emitting element including a light-emitting functional layer. The plurality of sub-pixels includes a plurality of first-color sub-pixels, a plurality of second-color sub-pixels, and a plurality of third-color sub-pixels. The plurality of sub-pixels are divided into a plurality of sub-pixel groups. Each sub-pixel group includes one first-color sub-pixel, one second-color sub-pixel, and one third-color sub-pixel. The plurality of sub-pixel groups are arranged in an array along a first direction and a second direction intersecting the first direction. The brightness center of the first color sub-pixel and the brightness center of the second color sub-pixel are both located on the same side of the brightness center of the third color sub-pixel in the first direction. Multiple third color sub-pixels of multiple sub-pixel groups arranged along the second direction are also arranged along the second direction. Multiple first color sub-pixels and multiple second color sub-pixels of multiple sub-pixel groups arranged along the second direction are alternately arranged along the second direction. The multiple sub-pixel groups include a first sub-pixel group, a second sub-pixel group, and a third sub-pixel group. The first sub-pixel group and the second sub-pixel group are adjacent in the second direction. The third sub-pixel group is adjacent in the first direction. In the first direction, the light-emitting functional layer of the third color sub-pixel of the first sub-pixel group is located between the light-emitting functional layers of the two first color sub-pixels of the first sub-pixel group and the third sub-pixel group in the orthogonal projection of the substrate. In the first direction, the light-emitting functional layer of the third color sub-pixel of the first sub-pixel group is located between the light-emitting functional layers of the two second color sub-pixels of the first sub-pixel group and the third sub-pixel group in the orthogonal projection of the substrate. The light-emitting functional layer of the third color sub-pixel of the first sub-pixel group in the orthogonal projection of the substrate includes a first side, and the light-emitting functional layer of the third color sub-pixel of the second sub-pixel group in the orthogonal projection of the substrate includes a second side. The first side and the second side are arranged opposite to each other. The two ends of the first side and the two ends of the second side are connected in sequence to form four lines. The four lines enclose a gap region. The light-emitting functional layer of at least one of the two first color sub-pixels and two second color sub-pixels of the first sub-pixel group and the second sub-pixel group is located in the gap region in the orthogonal projection of the substrate.

[0005] For example, in a display substrate provided in an embodiment of this disclosure, the second color sub-pixel of the first sub-pixel group is located on the side of the first color sub-pixel close to the second sub-pixel group, and the light-emitting functional layer of the second color sub-pixel of the first sub-pixel group is located in the spacing region in the orthogonal projection portion of the substrate.

[0006] For example, in one embodiment of this disclosure, the display substrate further includes a pixel defining layer located on the substrate, and each sub-pixel further includes a pixel opening located in the pixel defining layer. In each sub-pixel, the light-emitting functional layer includes a first sub-part located inside the pixel opening and a second sub-part located outside the pixel opening. The first sub-part of the light-emitting functional layer of the second color sub-pixel of the first sub-pixel group is located in the spacing region in the orthographic projection portion of the substrate.

[0007] For example, in a display substrate provided in an embodiment of this disclosure, the light-emitting functional layer of the second color sub-pixel of the first sub-pixel group includes a first protrusion in the orthographic projection on the substrate, the first protrusion protruding toward the spacing region such that at least a portion of the first protrusion is located in the spacing region, and the light-emitting functional layer of the third color sub-pixel of the first sub-pixel group includes a first avoidance portion in the orthographic projection on the substrate to avoid the first protrusion.

[0008] For example, in a display substrate provided in an embodiment of this disclosure, the first clearance portion includes a third side connected to the first side and adjacent to the first protrusion portion, the third side having a first angle with the second direction, the value of the first angle being between 10 degrees and 50 degrees.

[0009] For example, in a display substrate provided in an embodiment of this disclosure, the light-emitting functional layer of the second color sub-pixel of the first sub-pixel group and the light-emitting functional layer of the second color sub-pixel of the third sub-pixel group are spaced apart.

[0010] For example, in a display substrate provided in an embodiment of this disclosure, the spacing between the light-emitting functional layers of two second color sub-pixels in the first sub-pixel group and the third sub-pixel group is not greater than the spacing between the light-emitting functional layers of two third color sub-pixels in the first sub-pixel group and the second sub-pixel group.

[0011] For example, in a display substrate provided in an embodiment of this disclosure, the space enclosed by the light-emitting functional layer of the second color sub-pixel and the third color sub-pixel of the first sub-pixel group, the light-emitting functional layer of the third color sub-pixel of the second sub-pixel group, and the light-emitting functional layer of the second color sub-pixel of the third sub-pixel group, in the orthogonal projection of the substrate includes a trapezoid, and the two mutually parallel sides of the trapezoid are the first side and the second side.

[0012] For example, in a display substrate provided in one embodiment of this disclosure, the trapezoid is at least one of a right trapezoid and an isosceles trapezoid.

[0013] For example, in a display substrate provided in an embodiment of this disclosure, the orthographic projection of the light-emitting functional layer of the first color sub-pixel and the third color sub-pixel of each sub-pixel group onto the substrate includes a pair of sides that are parallel to the first direction and aligned with each other, and / or the orthographic projection of the light-emitting functional layer of the first color sub-pixel and the second color sub-pixel of each sub-pixel group onto the substrate includes a pair of sides that are parallel to the second direction and aligned with each other.

[0014] For example, in a display substrate provided in an embodiment of this disclosure, the light-emitting functional layer of the first color sub-pixel and the third color sub-pixel of each sub-pixel group includes a pair of adjacent sides that are parallel to each other and parallel to the second direction in the orthogonal projection of the substrate.

[0015] For example, in a display substrate provided in an embodiment of this disclosure, the orthographic projection of the light-emitting functional layer of the first color sub-pixel of each sub-pixel group onto the substrate includes a rectangle, the orthographic projection of the light-emitting functional layer of the second color sub-pixel onto the substrate includes a pentagon, and the orthographic projection of the light-emitting functional layer of the third color sub-pixel onto the substrate includes a right trapezoid.

[0016] For example, in a display substrate provided in one embodiment of this disclosure, the light-emitting functional layer of the second color sub-pixel of the first sub-pixel group and the light-emitting functional layer of the second color sub-pixel of the third sub-pixel group are partially located in the same interval region when projected onto the substrate.

[0017] For example, in a display substrate provided in an embodiment of this disclosure, the light-emitting functional layer of the second color sub-pixel of the first sub-pixel group, in its orthographic projection on the substrate, includes a first protrusion. The first protrusion protrudes toward the spacing region such that at least a portion of the first protrusion is located within the spacing region. The light-emitting functional layer of the second color sub-pixel of the third sub-pixel group, in its orthographic projection on the substrate, includes a second protrusion. The second protrusion protrudes toward the spacing region such that at least a portion of the second protrusion is located within the spacing region. The light-emitting functional layer of the third color sub-pixel of the first sub-pixel group, in its orthographic projection on the substrate, includes a first avoidance portion to avoid the first protrusion and the second protrusion.

[0018] For example, in a display substrate provided in an embodiment of this disclosure, the first clearance portion includes a third side and a fourth side. The third side is connected to the first side and is disposed adjacent to the first protrusion. The fourth side is connected to the first side and is disposed adjacent to the second protrusion. The third side has a first angle with the second direction and the fourth side has a second angle with the second direction. The values ​​of the first angle and the second angle are both between 10 degrees and 50 degrees.

[0019] For example, in a display substrate provided in an embodiment of this disclosure, the light-emitting functional layer of the first color sub-pixel and the third color sub-pixel of each sub-pixel group, when projected onto the substrate, includes a pair of adjacent sides that are parallel to each other and parallel to the second direction. The light-emitting functional layer of the third color sub-pixel of the first sub-pixel group and the light-emitting functional layer of the first color sub-pixel of the third sub-pixel group, when projected onto the substrate, includes a pair of adjacent sides that are parallel to each other and parallel to the second direction.

[0020] For example, in a display substrate provided in an embodiment of this disclosure, the orthographic projection of the light-emitting functional layer of the first color sub-pixel onto the substrate includes a rectangle, the orthographic projection of the light-emitting functional layer of the second color sub-pixel onto the substrate includes an isosceles trapezoid, and the orthographic projection of the light-emitting functional layer of the third color sub-pixel onto the substrate includes a hexagon.

[0021] For example, in a display substrate provided in an embodiment of this disclosure, the light-emitting functional layer of the first color sub-pixel of the first sub-pixel group includes a third protrusion in the orthogonal projection on the substrate, the third protrusion protruding toward the third color sub-pixel, and the light-emitting functional layer of the third color sub-pixel of the first sub-pixel group includes a second avoidance portion in the orthogonal projection on the substrate to avoid the third protrusion.

[0022] For example, in a display substrate provided in an embodiment of this disclosure, the light-emitting functional layer of the first color sub-pixel of the third sub-pixel group includes a fourth protrusion in the orthogonal projection of the substrate. The fourth protrusion protrudes toward the third color sub-pixel of the first sub-pixel group, and the second avoidance portion also avoids the fourth protrusion.

[0023] For example, in a display substrate provided in an embodiment of this disclosure, the orthographic projection of the light-emitting functional layer of the first color sub-pixel of each sub-pixel group onto the substrate includes a trapezoid, the orthographic projection of the light-emitting functional layer of the second color sub-pixel onto the substrate includes a trapezoid, and the orthographic projection of the light-emitting functional layer of the third color sub-pixel onto the substrate includes at least one of a hexagon or an octagon.

[0024] For example, in a display substrate provided in an embodiment of this disclosure, each sub-pixel further includes a pixel driving circuit electrically connected to the light-emitting element, and the light-emitting functional layer of the second color sub-pixel of each sub-pixel group includes a first part and a second part, the first part and the second part being configured to be driven by the same pixel driving circuit, and the first part of the light-emitting functional layer of the second color sub-pixel of the first sub-pixel group or the second sub-pixel group having its orthogonal projection on the substrate at least partially located within the interval region.

[0025] For example, in a display substrate provided in an embodiment of this disclosure, the first portion and the second portion of the light-emitting functional layer of the second color sub-pixel of each sub-pixel group are arranged along a first direction, and the spacing between the first portion and the second portion is zero. The first portion and the second portion are configured to be formed by different masks. The second color sub-pixel of the first sub-pixel group is located on the side of the first color sub-pixel close to the second sub-pixel group. The first portion of the light-emitting functional layer of the second color sub-pixel of the first sub-pixel group is entirely located within the spacing region.

[0026] For example, in a display substrate provided in one embodiment of this disclosure, the pattern formed by the orthographic projection of the light-emitting functional layers of the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel of each sub-pixel group onto the substrate includes a rectangle.

[0027] For example, in a display substrate provided in one embodiment of this disclosure, the light-emitting functional layers of the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel of each sub-pixel are all rectangular in their orthogonal projection onto the substrate.

[0028] For example, in one embodiment of this disclosure, the display substrate further includes a pixel defining layer located on the substrate. Each sub-pixel further includes a pixel opening located in the pixel defining layer. In each sub-pixel, the light-emitting functional layer is partially located within the pixel opening. The orthographic projection of the pixel opening onto the substrate is located within the orthographic projection of the light-emitting functional layer onto the substrate. The orthographic projections of the light-emitting functional layer and the pixel opening of each sub-pixel onto the substrate are respectively a first orthographic projection and a second orthographic projection. The edges of the first orthographic projection and the edges of the second orthographic projection are equally spaced. The spacing between the pixel openings of the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel of each sub-pixel group on the orthographic projection of the substrate is equal.

[0029] At least one embodiment of this disclosure provides a display device including the display substrate described in any of the above claims.

[0030] By setting luminescent functional layers for sub-pixels of other colors within this interval area, the interval area can be effectively utilized to maximize the aperture ratio of the sub-pixels located within it, thereby increasing the overall aperture ratio of the sub-pixel group. Furthermore, spacing sub-pixels of the same color evenly ensures uniform spacing, avoiding the adverse effects of inconsistent spacing on the display effect. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings of the embodiments will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this disclosure and are not intended to limit this disclosure.

[0032] Figure 1 is a planar schematic diagram of a traditional sRGB pixel arrangement;

[0033] Figure 2 is a cross-sectional schematic diagram of a display substrate provided in an embodiment of this disclosure;

[0034] Figure 3 is a plan view of a display substrate provided in an embodiment of this disclosure;

[0035] Figure 4 is a partial enlarged view of the display substrate shown in Figure 3 within the dashed frame;

[0036] Figure 5 is a comparison of the aperture ratio of each sub-pixel of the display substrate shown in Figure 3 and the traditional sRGB pixel arrangement.

[0037] Figure 6 is a plan view of another display substrate provided in an embodiment of this disclosure;

[0038] Figure 7 is a plan view of another display substrate provided in an embodiment of this disclosure;

[0039] Figure 8 is a partial enlarged view of the display substrate shown in Figure 7 within the dashed frame;

[0040] Figure 9 is a comparison of the aperture ratio of each sub-pixel of the display substrate shown in Figure 7 and the traditional sRGB pixel arrangement.

[0041] Figure 10 is a plan view of another display substrate provided in an embodiment of this disclosure;

[0042] Figure 11 is a comparison of the aperture ratio of each sub-pixel of the display substrate shown in Figure 10 and the traditional sRGB pixel arrangement;

[0043] Figure 12 is a plan view of another display substrate provided in an embodiment of this disclosure;

[0044] Figure 13 is a comparison of the aperture ratio of each sub-pixel of the display substrate shown in Figure 12 and the traditional sRGB pixel arrangement.

[0045] Figure 14 is a plan view of another display substrate provided in an embodiment of this disclosure;

[0046] Figure 15 is a partial enlarged view of the display substrate shown in Figure 14 at the dashed frame;

[0047] Figure 16 is a comparison of the aperture ratio of each sub-pixel of the display substrate shown in Figure 3 and the traditional sRGB pixel arrangement.

[0048] Figure 17 is a plan view of another display substrate provided in an embodiment of this disclosure;

[0049] Figure 18 is a plan view of another display substrate provided in an embodiment of this disclosure; and

[0050] Figure 19 is a schematic diagram of a display device provided in an embodiment of this disclosure. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0052] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as “comprising” or “including” mean that an element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0053] Unless otherwise defined, the features such as "parallel," "perpendicular," and "identical" used in the embodiments of this disclosure include strictly defined cases of "parallel," "perpendicular," and "identical," as well as cases involving a certain degree of error, such as "approximately parallel," "approximately perpendicular," and "approximately identical." For example, the aforementioned "approximately" may indicate that the difference between the compared objects is within 10% or 5% of the average value of the compared objects. Unless otherwise specified in the following embodiments of this disclosure, the quantity of a component or element is implied to mean that the component or element may be one or more, or can be understood as at least one. "At least one" refers to one or more, and "more" refers to at least two. In the embodiments of this disclosure, "same-layer arrangement" refers to the relationship between multiple film layers formed from the same material after undergoing the same step (e.g., a patterning process). Here, "same-layer" does not always mean that the multiple film layers have the same thickness or that the multiple film layers have the same height in a cross-sectional view.

[0054] Existing OLED pixel arrangements include sRGB pixel arrangements. In sRGB pixel arrangements, the ribs between adjacent openings of the mask used to form the light-emitting functional layers of each color sub-pixel have a minimum width. Due to this minimum rib width limitation, a large amount of space between the light-emitting functional layers of two adjacent sub-pixels of the same color cannot be effectively utilized, resulting in a low aperture ratio. To maximize the light-emitting area of ​​each color sub-pixel, multiple adjacent sub-pixels of the same color can share a single mask opening. However, this approach leads to uneven spacing between the color sub-pixels, affecting the display effect.

[0055] Figure 1 is a schematic diagram of a traditional sRGB pixel arrangement. As shown in Figure 1, the position of the light-emitting functional layer 011 corresponds to the opening of the mask used to form the light-emitting functional layer. The area between the light-emitting functional layers 011 of two adjacent sub-pixels 01 of the same color corresponds to the ribs of the mask. Due to the limitation of the minimum width of the ribs of the mask, there is a large unused area 02 between the light-emitting functional layers 011 of two adjacent sub-pixels 01 of the same color. This unused area 02 is the location of the ribs of the mask, and the vertical dimension L01 of the unused area 02 is equal to the width of the ribs of the mask. Furthermore, the larger the width of the ribs of the mask, the larger the unused area 02, and the lower the sub-pixel aperture ratio.

[0056] Existing sRGB pixel arrangements are mainly used in laptops and wearable watches, and their aperture ratio is significantly affected by the width of the mask ribs. Typically, when the mask thickness is 25μm, the shadow size of the emissive layer is relatively small (approximately 4μm), and a mask rib width of 40μm is recommended. When the mask rib width is 25μm and 19μm, the shadow size is approximately 6μm and 8μm, respectively. Currently, small-sized products generally use ribs with a width of 19μm, while large-sized products generally use ribs with widths of 25μm and 40μm.

[0057] This disclosure provides a display substrate and a display device. The display substrate includes a substrate and a plurality of sub-pixels. The plurality of sub-pixels are located on the substrate, and each sub-pixel includes a light-emitting element, the light-emitting element including a light-emitting functional layer. The plurality of sub-pixels include a plurality of first-color sub-pixels, a plurality of second-color sub-pixels, and a plurality of third-color sub-pixels. The plurality of sub-pixels are divided into a plurality of sub-pixel groups, and each sub-pixel group includes one first-color sub-pixel, one second-color sub-pixel, and one third-color sub-pixel.

[0058] Multiple sub-pixel groups are arranged in an array along a first direction and a second direction intersecting the first direction. The brightness centers of the first-color sub-pixels and the second-color sub-pixels in each sub-pixel group are located on the same side of the brightness center of the third-color sub-pixel in the first direction. The brightness center of a sub-pixel is the center of its light-emitting region, which is the area defined by its pixel opening. When a sub-pixel has one pixel opening, its brightness center can be the center of that opening; when a sub-pixel has two pixel openings, its brightness center can be the center of the line connecting the centers of the two openings; when a sub-pixel has more than two openings, its brightness center can be the center of the pattern formed by the lines connecting the centers of the pixel openings. Multiple third-color sub-pixels of the multiple sub-pixel groups arranged along the second direction are also arranged along the second direction, and multiple first-color sub-pixels and multiple second-color sub-pixels of the multiple sub-pixel groups arranged along the second direction are alternately arranged along the second direction.

[0059] The multiple sub-pixel groups include a first sub-pixel group, a second sub-pixel group, and a third sub-pixel group. The first sub-pixel group and the second sub-pixel group are adjacent in a second direction, and the first sub-pixel group and the third sub-pixel group are adjacent in a first direction. In the first direction, the orthographic projection of the light-emitting functional layer of the third color sub-pixel of the first sub-pixel group onto the substrate is located between the orthographic projections of the light-emitting functional layers of the two first color sub-pixels of the first sub-pixel group and the third sub-pixel group onto the substrate. In the first direction, the orthographic projection of the light-emitting functional layer of the third color sub-pixel of the first sub-pixel group onto the substrate is located between the orthographic projections of the light-emitting functional layers of the two second color sub-pixels of the first sub-pixel group and the third sub-pixel group onto the substrate.

[0060] The light-emitting functional layer of the third color sub-pixel in the first sub-pixel group, as projected onto the substrate, includes a first side; the light-emitting functional layer of the third color sub-pixel in the second sub-pixel group, as projected onto the substrate, includes a second side. The first and second sides are disposed opposite to each other. The two ends of the first side and the two ends of the second side are sequentially connected to form four lines, which enclose a spacing region. The light-emitting functional layer of at least one of the two first color sub-pixels and two second color sub-pixels in the first and second sub-pixel groups is located in the spacing region in the projected portion of the substrate.

[0061] By setting emissive layers of other colors within this interval region, the area of ​​the emissive layer of the subpixels within this interval region can be effectively utilized. This maximizes the area of ​​the emissive region of the subpixels within this interval region, thereby increasing the aperture ratio of the subpixels within this interval region and the overall aperture ratio of the subpixel group. Furthermore, spacing subpixels of the same color evenly ensures uniform spacing between them, avoiding the adverse effects of inconsistent spacing on the display effect.

[0062] The display substrate and display device provided in the embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.

[0063] This disclosure provides a display substrate. FIG2 is a cross-sectional schematic diagram of a display substrate provided in this disclosure; FIG3 is a planar schematic diagram of a display substrate provided in this disclosure; FIG4 is a partial enlarged view of the display substrate shown in FIG3 at the dashed frame. As shown in FIG2 and FIG3, the display substrate 100 includes a substrate 110 and a plurality of sub-pixels. The plurality of sub-pixels are located on the substrate 110, and each sub-pixel includes a light-emitting element, the light-emitting element including a light-emitting functional layer 141. For example, the light-emitting element may further include a first electrode 151 and a second electrode 152 located on both sides of the light-emitting functional layer 141. For example, each sub-pixel also includes a pixel driving circuit 120 electrically connected to the light-emitting element. For example, the display substrate 100 also includes a pixel defining layer 130 located on the substrate 110. For example, each sub-pixel also includes a pixel opening 131 located in the pixel defining layer 130. The multiple sub-pixels include multiple first-color sub-pixels 140a, multiple second-color sub-pixels 140b, and multiple third-color sub-pixels 140c. The multiple sub-pixels are divided into multiple sub-pixel groups, and each sub-pixel group includes one first-color sub-pixel 140a, one second-color sub-pixel 140b, and one third-color sub-pixel 140c.

[0064] As shown in Figure 3, multiple sub-pixel groups are arranged in an array along a first direction X and a second direction Y intersecting the first direction X. The brightness centers of the first color sub-pixel 140a and the second color sub-pixel 140b in each sub-pixel group are located on the same side of the brightness center of the third color sub-pixel 140c in the first direction X. It should be noted that the brightness center of a sub-pixel is the center of its light-emitting area, which is the area defined by the pixel opening 131 of the sub-pixel. When the number of pixel openings 131 of a sub-pixel is one, the brightness center of the sub-pixel can be the center of that pixel opening 131; when the number of pixel openings 131 of a sub-pixel is two, the brightness center of the sub-pixel can be the center of the line connecting the centers of the two pixel openings 131; when the number of pixel openings 131 of a sub-pixel is greater than two, the brightness center of the sub-pixel can be the center of the pattern formed by the lines connecting the centers of the multiple pixel openings 131 of the sub-pixel.

[0065] As shown in Figure 3, multiple third-color sub-pixels 140c of multiple sub-pixel groups arranged along the second direction Y are arranged along the second direction Y, and multiple first-color sub-pixels 140a and multiple second-color sub-pixels 140b of multiple sub-pixel groups arranged along the second direction Y are alternately arranged along the second direction Y.

[0066] As shown in Figures 2 and 3, the multiple sub-pixel groups include a first sub-pixel group G01, a second sub-pixel group G02, and a third sub-pixel group G03. The first sub-pixel group G01 and the second sub-pixel group G02 are adjacent in the second direction Y, and the first sub-pixel group G01 and the third sub-pixel group G03 are adjacent in the first direction X. In the first direction X, the orthographic projection of the light-emitting functional layer 141 of the third color sub-pixel 140c of the first sub-pixel group G01 onto the substrate 110 lies between the orthographic projections of the light-emitting functional layers 141 of the two first color sub-pixels 140a of the first sub-pixel group G01 and the third sub-pixel group G03 onto the substrate 110. Similarly, in the first direction X, the orthographic projection of the light-emitting functional layer 141 of the third color sub-pixel 140c of the first sub-pixel group G01 onto the substrate 110 lies between the orthographic projections of the light-emitting functional layers 141 of the two second color sub-pixels 140b of the first sub-pixel group G01 and the third sub-pixel group G03 onto the substrate 110.

[0067] As shown in Figures 3 and 4, the orthographic projection of the light-emitting functional layer 141 of the third color sub-pixel 140c of the first sub-pixel group G01 onto the substrate 110 includes a first side E1, and the orthographic projection of the light-emitting functional layer 141 of the third color sub-pixel 140c of the second sub-pixel group G02 onto the substrate 110 includes a second side E2. The first side E1 and the second side E2 are arranged opposite to each other. The first side E1 and the second side E2 being arranged opposite to each other means that the first side E1 and the second side E2 are facing each other or facing each other. There are no other sides of the light-emitting functional layer 141 of the third color sub-pixel 140c between the first side E1 and the second side E2, but there may be sides of the light-emitting functional layers of other color sub-pixels. The two ends T1 and T2 of the first side E1 are connected to the two ends T3 and T4 of the second side E2 in sequence to form four connecting lines. The four connecting lines are the first side E1, the virtual connecting line T2T4, the second side E2, and the virtual connecting line T3T1. The four connecting lines enclose the interval region S1. For example, the virtual connection T2T4 coincides with one edge of the light-emitting functional layer 141 of the second color sub-pixel 140b of the third sub-pixel group G03.

[0068] As shown in Figures 3 and 4, the light-emitting functional layer 141 of the second color sub-pixel 140b of the first sub-pixel group G01 is located in the spacing region S1 in the orthogonal projection of the substrate 110. However, this embodiment of the present disclosure is not limited to this. The light-emitting functional layer of at least one of the two first color sub-pixels and two second color sub-pixels of the first and second sub-pixel groups may also be partially located in the spacing region in the orthogonal projection of the substrate.

[0069] In the display substrate 100 provided in this embodiment, a rib is provided between two adjacent openings of the mask for forming the light-emitting functional layer 141 of the two third-color sub-pixels 140c of the first sub-pixel group G01 and the second sub-pixel group G02, and the rib corresponds to the interval region S1. After forming the light-emitting functional layer 141 of the third-color sub-pixel 140c, the light-emitting functional layers of other color sub-pixels can be formed in the interval region S1. Of course, this embodiment does not limit the formation order of the light-emitting functional layers of the third-color sub-pixels and other color sub-pixels. Therefore, by setting the light-emitting functional layers of other color sub-pixels in the interval region S1, the interval region S1 can be effectively utilized to maximize the area of ​​the light-emitting functional layer 141 of the sub-pixels located in the interval region S1, increase the area of ​​the light-emitting region of the sub-pixels, and thus maximize the aperture ratio of the sub-pixels located in the interval region S1, and increase the overall aperture ratio of the sub-pixel group to which it belongs.

[0070] In some examples, as shown in Figures 3 and 4, the second color sub-pixel 140b of the first sub-pixel group G01 is located on the side of the first color sub-pixel 140a closer to the second sub-pixel group G02. The light-emitting functional layer 141 of the second color sub-pixel 140b of the first sub-pixel group G01 is located in the spacing region S1 in the orthogonal projection of the substrate 110. By placing the light-emitting functional layer of one color sub-pixel of a sub-pixel group in the spacing region, the area of ​​the light-emitting functional layer of the sub-pixel located in the spacing region can be maximized; the impact on the area of ​​the light-emitting functional layer of the third color sub-pixel can be minimized; and both the sub-pixel located in the spacing region S1 and the third color sub-pixel can have a better aperture ratio.

[0071] In some examples, as shown in Figures 2 to 4, the display substrate 100 further includes a pixel defining layer 130 located on the substrate 110. Each sub-pixel also includes a pixel opening 131 located in the pixel defining layer 130. In each sub-pixel, the light-emitting functional layer 141 includes a first sub-part 1411 located within the pixel opening 131 and a second sub-part 1412 located outside the pixel opening 131. Figure 2 shows the first sub-part 1411 and the second sub-part 1412. To clearly illustrate other structures of the display substrate, Figure 3 only shows the first sub-part 1411 and the second sub-part 1412 of the light-emitting functional layer 141 of the second color sub-pixel of the sub-pixel group in the lower right corner. Other color sub-pixels are not described in detail. The first sub-part 1411 of the light-emitting functional layer 141 of the second color sub-pixel 140b of the first sub-pixel group G01 is located in the spacing region S1 in the orthographic projection of the substrate 110. By placing the first sub-part 1411 of the second color sub-pixel 140b of the first sub-pixel group G01 within the spacing region S1, the area of ​​the first sub-part 1411 of the sub-pixel located within the spacing region S1 can be increased as much as possible, thereby maximizing the aperture ratio and the area of ​​the light-emitting region of the sub-pixel.

[0072] In some examples, as shown in Figures 2 to 4, the orthographic projection of the light-emitting functional layer 141 of the second color sub-pixel 140b of the first sub-pixel group G01 onto the substrate 110 includes a first protrusion 141a. The first protrusion 141a protrudes toward the spacing region S1 such that at least a portion of the first protrusion 141a is located within the spacing region S1. The orthographic projection of the light-emitting functional layer 141 of the third color sub-pixel 140c of the first sub-pixel group G01 onto the substrate 110 includes a first avoidance portion 141e to avoid the first protrusion 141a. By adjusting the relative relationship or size of the first protrusion 141a and the first avoidance portion 141e, the area of ​​the light-emitting functional layer 141 of the second color sub-pixel 140b and the third color sub-pixel 140c can be adjusted. Under the premise of effectively utilizing the spacing region S1, both color sub-pixels can have a better aperture ratio, and the overall aperture ratio of the sub-pixel group to which they belong is also in a better state. The overall aperture ratio of a subpixel group is the sum of the aperture ratios of each color subpixel in that subpixel group. For example, the relative relationship or size of the first protrusion 141a and the first clearance portion 141e can be adjusted so that the aperture ratios of the two color subpixels meet the set requirements.

[0073] In some examples, as shown in Figures 3 and 4, the first clearance portion 141e includes a third side E3 connected to the first side E1 and adjacent to the first protrusion 141a. The third side E3 has a first angle θ1 with the second direction Y, and the value of the first angle θ1 is between 10 degrees and 50 degrees. By adjusting the angle θ1, the relative relationship or size of the first protrusion 141a and the first clearance portion 141e can be adjusted. For example, the value of the first angle θ1 can be 15, 18, 20, 23, 25, 28, 30, 33, 35, 38, 40, 43, 45, or 48 degrees. The embodiments of this disclosure do not limit the value of the first angle θ1.

[0074] For example, as shown in Figures 3 and 4, when the value of the first included angle θ1 is around 45 degrees, such as 40-45 degrees, the aperture ratios of the second color sub-pixel 140b and the third color sub-pixel 140c in the sub-pixel group are both in a better state, and the overall aperture ratio of the sub-pixel group to which they belong is also in a better state.

[0075] In some examples, as shown in Figures 3 and 4, the light-emitting functional layer 141 of the second color sub-pixel 140b of the first sub-pixel group G01 is spaced apart from the light-emitting functional layer 141 of the second color sub-pixel 140b of the third sub-pixel group G03. The first protrusion 141a of the light-emitting functional layer 141 of the second color sub-pixel 140b of the first sub-pixel group G01 is spaced apart from the light-emitting functional layer 141 of the second color sub-pixel 140b of the third sub-pixel group G03. The mask used to form the light-emitting functional layer 141 of the second color sub-pixel 140b has a rib between two adjacent openings. This rib corresponds to the spacing between the light-emitting functional layers 141 of the second color sub-pixel 140b of the first sub-pixel group G01 and the third sub-pixel group G03. Thus, the light-emitting functional layers 141 of the second color sub-pixel 140b of the first sub-pixel group G01 and the third sub-pixel group G03 can be formed through different openings of the same mask. This not only saves on the process flow, but also makes the spacing between sub-pixels of the same color uniform, avoiding the adverse effects of different spacing on the display effect.

[0076] In some examples, as shown in Figures 3 and 4, the spacing between the light-emitting functional layers 141 of the two second-color sub-pixels 140b in the first sub-pixel group G01 and the third sub-pixel group G03 is L1, and the spacing between the light-emitting functional layers 141 of the two third-color sub-pixels 140c in the first sub-pixel group G01 and the second sub-pixel group G02 is L2, with spacing L1 equal to spacing L2. By making the two spacing values ​​equal, the area of ​​the light-emitting functional layers 141 of the second-color sub-pixels 140b and the third-color sub-pixels 140c can be maximized, resulting in better aperture ratios for both the second-color sub-pixels 140b and the third-color sub-pixels 140c, and a better overall aperture ratio for the sub-pixel groups they belong to. For example, the values ​​of these two spacings can be equal to the minimum width of the ribs of the mask in the light-emitting functional layers.

[0077] For example, as shown in Figure 4, the spacing L1 can also be smaller than the spacing L2. The smaller the spacing, the higher the utilization rate of the light-emitting functional layer 141 of the second color sub-pixel 140b in the interval region S1, the larger the area of ​​the light-emitting functional layer 141 of the second color sub-pixel 140b, and the larger the aperture ratio. Although reducing the spacing L1 may increase the shadow size of the light-emitting functional layer 141 of the second color sub-pixel 140b, as shown in Figure 4, the portion of the light-emitting functional layer 141 of the second color sub-pixel 140b in the interval region S1 is a first protrusion 141a. For example, this first protrusion 141a is the sharp corner of a triangle, so the increase in shadow size caused by reducing the spacing L1 only affects this first protrusion 141a. For example, by optimizing the rounded corner design of this first protrusion 141a, the influence of the shadow size on the first protrusion 141a can be reduced, and it will not significantly affect the aperture ratio of the second color sub-pixel 140b.

[0078] In some examples, as shown in Figures 3 and 4, the space enclosed by the light-emitting functional layers 141 of the second color sub-pixels 140b and 140c of the first sub-pixel group G01, the third color sub-pixel 140c of the second sub-pixel group G02, and the second color sub-pixel 140b of the third sub-pixel group G03, in their orthogonal projection onto the substrate 110, comprises a trapezoid. The two parallel sides of the trapezoid are the first side E1 and the second side E2. For example, the trapezoid is a right-angled trapezoid. The area of ​​the trapezoid is smaller than the area of ​​the spacing region S1. The first side E1 and the second side E2 are parallel; for example, the distance between the first side E1 and the second side E2 is the minimum width of the rib of the mask of the light-emitting functional layer, thereby allowing the area of ​​the light-emitting functional layer of the third color sub-pixel of each sub-pixel group to be larger and the aperture ratio to be higher.

[0079] In some examples, as shown in FIG3, the orthographic projection of the light-emitting functional layer 141 of the first color sub-pixel 140a and the third color sub-pixel 140c of each sub-pixel group onto the substrate 110 includes a pair of edges E4 parallel to and aligned with each other in the first direction X. For example, the pair of edges E4 of the first sub-pixel group G01 is the edge of the first sub-pixel group G01 furthest from the second sub-pixel group G02. For example, the orthographic projection of the light-emitting functional layer 141 of the first color sub-pixel 140a and the second color sub-pixel 140b of each sub-pixel group onto the substrate 110 includes a pair of edges E5 parallel to and aligned with each other in the second direction Y. For example, the pair of edges E5 of the first sub-pixel group G01 is the edge of the first sub-pixel group G01 furthest from the third sub-pixel group G03. For example, the orthographic projection of the light-emitting functional layer 141 of the third color sub-pixel 140c of each sub-pixel group onto the substrate 110 includes an edge E6 parallel to the second direction Y. For example, edge E6 of the first sub-pixel group G01 is the edge in the first sub-pixel group G01 that is closest to the third sub-pixel group G03. For example, the orthographic projection of the light-emitting functional layer 141 of the first color sub-pixel 140a and the third color sub-pixel 140c of each sub-pixel group onto the substrate 110 includes a pair of adjacent edges E7 that are parallel to each other and parallel to the second direction Y. For example, this pair of edges E7 are approximately overlapping. This arrangement allows the light-emitting functional layers 141 of the first color sub-pixel 140a, the second color sub-pixel 140b, and the third color sub-pixel 140c to all have a large area, improving the aperture ratio of each sub-pixel and the sub-pixel group.

[0080] In some examples, as shown in FIG3, the orthographic projection of the light-emitting functional layer 141 of the first color subpixel 140a in each subpixel group onto the substrate 110 includes at least one pair of sides perpendicular to each other. For example, as shown in FIG3, the shape of the light-emitting functional layer 141 of the first color subpixel 140a on the substrate 110 includes a rectangle. For example, each corner of the rectangle may be rounded. This configuration allows the light-emitting functional layer of each color subpixel in each subpixel group to have a larger area, thereby improving the aperture ratio of each subpixel and the subpixel group.

[0081] In some examples, as shown in FIG3, the orthographic projection of the light-emitting functional layer 141 of the second color subpixel 140b in each subpixel group onto the substrate 110 includes at least one pair of sides E perpendicular to each other. For example, as shown in FIG3, the orthographic projection of the light-emitting functional layer 141 of the second color subpixel 140b onto the substrate 110 includes a right trapezoid. For example, each corner of the right trapezoid may be rounded. This configuration allows the light-emitting functional layer of each color subpixel in each subpixel group to have a larger area, thereby improving the aperture ratio of each subpixel and the subpixel group.

[0082] In some examples, as shown in FIG3, the orthographic projection of the light-emitting functional layer 141 of the third color sub-pixel 140c in each sub-pixel group onto the substrate 110 includes at least one pair of sides perpendicular to each other. For example, as shown in FIG3, the orthographic projection of the light-emitting functional layer 141 of the third color sub-pixel 140c onto the substrate 110 includes three pairs of sides perpendicular to each other. For example, the orthographic projection of the light-emitting functional layer 141 of the third color sub-pixel 140c onto the substrate 110 includes a pentagon. For example, each corner of the pentagon may be rounded. This configuration allows the light-emitting functional layer of each color sub-pixel in each sub-pixel group to have a larger area, thereby improving the aperture ratio of each sub-pixel and the sub-pixel group.

[0083] In some examples, as shown in Figure 3, the area of ​​the light-emitting functional layer 141 of the first color sub-pixel 140a in each sub-pixel group is smaller than the area of ​​the light-emitting functional layer 141 of the second color sub-pixel 140b, and the area of ​​the light-emitting functional layer 141 of the second color sub-pixel 140b in each sub-pixel group is smaller than the area of ​​the light-emitting functional layer 141 of the third color sub-pixel 140c. For example, the area of ​​the pixel opening 131 of the first color sub-pixel 140a in each sub-pixel group is smaller than the area of ​​the pixel opening 131 of the second color sub-pixel 140b, and the area of ​​the pixel opening 131 of the second color sub-pixel 140b in each sub-pixel group is smaller than the area of ​​the pixel opening 131 of the third color sub-pixel 140c. By making the light-emitting functional layer 141 of the second color sub-pixel 140b projected onto the substrate 110 in the interval region S1, the area of ​​each color sub-pixel in each sub-pixel group can be more rationally allocated and arranged.

[0084] In some examples, as shown in FIG3, in each sub-pixel, the light-emitting functional layer 141 is partially located within the pixel opening 131, and the orthographic projection of the pixel opening 131 onto the substrate 110 lies within the orthographic projection of the light-emitting functional layer 141 onto the substrate 110. The orthographic projections of the light-emitting functional layer 141 and the pixel opening 131 of each sub-pixel onto the substrate 110 are respectively the first orthographic projection 1410 and the second orthographic projection 1310. The edges of the first orthographic projection 1410 and the edges of the second orthographic projection 1310 are equally spaced. To clearly illustrate other structures of the display substrate, FIG3 only shows the first orthographic projection 141 and the second orthographic projection 1310 of the light-emitting functional layer 141 of the third color sub-pixel 140c of the sub-pixel group in the lower right corner; other color sub-pixels are not described in detail. In this embodiment, the spacing between the edges of the first and second orthographic projections is not limited. For example, the spacing L3 between the edges can be around 10 μm.

[0085] In some examples, as shown in Figure 3, the spacing between the pixel openings 131 of the first color sub-pixel 140a, the second color sub-pixel 140b, and the third color sub-pixel 140c in each sub-pixel group when projected onto the substrate 110 is equal. For example, this spacing L4 is approximately 20 μm. To clearly illustrate the other structures of the display substrate, Figure 3 only labels the spacing L4 between the pixel openings 131 of the first color sub-pixel 140a, the second color sub-pixel 140b, and the third color sub-pixel 140c in the lower right sub-pixel group; other sub-pixel groups are not described in detail.

[0086] Figure 5 is a comparison of the aperture ratio of each sub-pixel of the display substrate shown in Figure 3 and the traditional sRGB pixel arrangement. As shown in Figure 5, the aperture ratio of each color sub-pixel of the display substrate shown in Figure 3 is significantly improved compared with the traditional sRGB pixel arrangement, and the absolute value of the overall aperture ratio of each sub-pixel group is increased by 3.4%, and the relative value is increased by 8.1%.

[0087] Figure 6 is a plan view of another display substrate provided in an embodiment of this disclosure. As shown in Figure 6, the light-emitting functional layer 141 of the first color sub-pixel 140a of the second sub-pixel group G02 is located in the spacing region S1 in the orthogonal projection of the substrate 110. In this embodiment of the disclosure, the size relationship of the light-emitting functional layer or pixel opening of the three color sub-pixels in each sub-pixel group is not limited, and can be adjusted according to actual needs.

[0088] In the embodiments disclosed herein, the first direction and the second direction can be interchanged, the positions of the first color sub-pixel, the second color sub-pixel and the third color sub-pixel can also be interchanged, the positions of the first sub-pixel group, the second sub-pixel group and the third sub-pixel group can also be interchanged, and the first part and the second part of the light-emitting functional layer of the second color sub-pixel mentioned later can also be interchanged, which will not be described in detail here.

[0089] For example, the first color can be red, the second color can be green, and the third color can be blue. Of course, this disclosure does not limit this.

[0090] Figure 7 is a plan view of another display substrate provided in an embodiment of this disclosure; Figure 8 is a partial enlarged view of the display substrate shown in Figure 7 within the dashed frame. As shown in Figures 7 and 8, the light-emitting functional layer 141 of the second color sub-pixel 140b of the first sub-pixel group G01 and the light-emitting functional layer 141 of the second color sub-pixel 140b of the third sub-pixel group G03 are partially located in the same spacing region S1 when projected onto the substrate 110. Therefore, this spacing region S1 can be effectively utilized to increase the area of ​​the light-emitting functional layer 141 of the second color sub-pixel 140b, thereby increasing the aperture ratio of the second color sub-pixel 140b and the overall aperture ratio of the sub-pixel group to which it belongs.

[0091] In some examples, as shown in Figures 2, 7, and 8, at least one of the first sub-parts 1411 of the light-emitting functional layer 141 of the second color sub-pixel 140b of the first sub-pixel group G01 and the third sub-pixel group G03 is not located within the spacing region S1. For example, as shown in Figures 2 and 7, neither the first sub-parts 1411 of the light-emitting functional layer 141 of the second color sub-pixel 140b of the first sub-pixel group G01 nor the third sub-pixel group G03 is located within the spacing region S1. With this configuration, the impact on the area of ​​the light-emitting region of the third color sub-pixel 140c can be minimized while increasing the aperture ratio of the second color sub-pixel 140b.

[0092] In some examples, as shown in Figures 7 and 8, the orthographic projection of the light-emitting functional layer 141 of the second color sub-pixel 140b of the first sub-pixel group G01 onto the substrate 110 includes a first protrusion 141a, which protrudes toward the spacing region S1 such that at least a portion of the first protrusion 141a is located within the spacing region S1. The orthographic projection of the light-emitting functional layer 141 of the second color sub-pixel 140b of the third sub-pixel group G03 onto the substrate 110 includes a second protrusion 141b, which protrudes toward the spacing region S1 such that at least a portion of the second protrusion 141b is located within the spacing region S1. At least a portion of the first protrusion 141a and at least a portion of the second protrusion 141b are both located within the same spacing region S1.

[0093] As shown in Figure 7, the orthogonal projection of the light-emitting functional layer 141 of the third color sub-pixel 140c of the first sub-pixel group G01 onto the substrate 110 includes a first clearance portion 141e to avoid the first protrusion 141a and the second protrusion 141b. By adjusting the relative relationship or size of the first protrusion 141a, the second protrusion 141b, and the first clearance portion 141e, the area of ​​the light-emitting functional layer 141 of the second color sub-pixel 140b and the third color sub-pixel 140c can be adjusted. Under the premise of effectively utilizing the interval region S1, both color sub-pixels can have a better aperture ratio, making the overall aperture ratio of the sub-pixel group they belong to also better. For example, the relative relationship or size of the first protrusion 141a, the second protrusion 141b, and the first clearance portion 141e can also be adjusted so that the aperture ratio of the two color sub-pixels meets the set requirements.

[0094] For example, as shown in Figures 7 and 8, the first clearance portion 141e includes a third side E3 and a fourth side E4. The third side E3 is connected to the first side E1 and is adjacent to the first protrusion 141a. The fourth side E4 is connected to the first side E1 and is adjacent to the second protrusion 141b. The third side E3 has a first angle θ1 with the second direction Y, and the fourth side E4 has a second angle θ2 with the second direction Y. The values ​​of the first angle θ1 and the second angle θ2 are both between 10 degrees and 50 degrees. By adjusting the angles θ1 and θ2, the relative relationship or size of the first protrusion 141a, the second protrusion 141b, and the first clearance portion 141e can be adjusted. For example, the values ​​of the first included angle θ1 and the second included angle θ2 can be 15, 18, 20, 23, 25, 28, 30, 33, 35, 38, 40, 43, 45, or 48 degrees. The embodiments of this disclosure do not limit the values ​​of the first included angle θ1 and the second included angle θ2.

[0095] For example, as shown in Figures 7 and 8, when the values ​​of the first included angle θ1 and the second included angle θ2 are around 15 degrees, such as 10-20 degrees, the aperture ratios of the second color sub-pixel 140b and the third color sub-pixel 140c in each sub-pixel group are in a relatively good state, and the overall aperture ratio of the sub-pixel group to which they belong is also in a better state.

[0096] In some examples, as shown in Figures 7 and 8, the light-emitting functional layer 141 of the second color sub-pixel 140b of the first sub-pixel group G01 and the light-emitting functional layer 141 of the second color sub-pixel 140b of the third sub-pixel group G03 are spaced apart. The first protrusion 141a of the light-emitting functional layer 141 of the second color sub-pixel 140b of the first sub-pixel group G01 and the second protrusion 141b of the light-emitting functional layer 141 of the second color sub-pixel 140b of the third sub-pixel group G03 are spaced apart. Therefore, the light-emitting functional layers 141 of the second color sub-pixel 140b of the first sub-pixel group G01 and the third sub-pixel group G03 can be formed through different openings in the same mask, which not only saves on the manufacturing process but also ensures that the spacing between the multiple sub-pixels is uniform, avoiding the adverse effects of inconsistent spacing on the display effect.

[0097] In some examples, as shown in Figures 7 and 8, the spacing between the light-emitting functional layers 141 of the two second-color sub-pixels 140b of the first sub-pixel group G01 and the third sub-pixel group G03 is L1, and the spacing between the light-emitting functional layers 141 of the two third-color sub-pixels 140c of the first sub-pixel group G01 and the second sub-pixel group G02 is L2, with spacing L1 equal to spacing L2. By making the two spacing values ​​equal, the area of ​​the light-emitting functional layers 141 of the second-color sub-pixels 140b and the third-color sub-pixels 140c can be maximized. For example, the values ​​of these two spacings can be equal to the minimum width of the ribs of the mask of the light-emitting functional layer 141.

[0098] For example, the spacing L1 can also be smaller than the spacing L2.

[0099] In some examples, as shown in Figures 7 and 8, the space enclosed by the light-emitting functional layers 141 of the second color sub-pixels 140b and 140c of the first sub-pixel group G01, the third color sub-pixel 140c of the second sub-pixel group G02, and the second color sub-pixel 140b of the third sub-pixel group G03, in the orthogonal projection onto the substrate 110, comprises a trapezoid. For example, this trapezoid is an isosceles trapezoid. This allows sub-pixels of the same color to be symmetrical with each other, resulting in a better display effect.

[0100] In some examples, as shown in FIG7, the orthographic projection of the light-emitting functional layer 141 of the first color sub-pixel 140a and the third color sub-pixel 140c of each sub-pixel group onto the substrate 110 includes a pair of sides E4 parallel to and aligned with each other in the first direction X. For example, this pair of sides E4 of the first sub-pixel group G01 is the side of the first sub-pixel group G01 furthest from the second sub-pixel group G02. For example, the orthographic projection of the light-emitting functional layer 141 of the first color sub-pixel 140a and the third color sub-pixel 140c of each sub-pixel group onto the substrate 110 includes a pair of sides E7 adjacent to each other and parallel to the second direction Y. For example, this pair of sides E7 is substantially overlapping. For example, the orthographic projection of the light-emitting functional layer 141 of the third color sub-pixel 140c of the first sub-pixel group G01 and the light-emitting functional layer 141 of the first color sub-pixel 140a of the third sub-pixel group G03 onto the substrate 110 includes a pair of sides E6 adjacent to each other and parallel to the second direction Y. For example, the pair of edges E6 are approximately overlapping. This arrangement allows the light-emitting functional layers 141 of the first color sub-pixel 140a, the second color sub-pixel 140b, and the third color sub-pixel 140c to have larger areas, thereby increasing the aperture ratio of each sub-pixel and the overall aperture ratio of the sub-pixel group to which it belongs.

[0101] In some examples, as shown in FIG7, the orthographic projection of the light-emitting functional layer 141 of the first color subpixel 140a in each subpixel group onto the substrate 110 includes at least a pair of sides E perpendicular to each other. For example, as shown in FIG7, the shape of the light-emitting functional layer 141 of the first color subpixel 140a on the substrate 110 includes a rectangle. For example, each corner of the rectangle may be rounded. This configuration allows the area of ​​the light-emitting functional layer 141 of each color subpixel in each subpixel group to be large, improving the aperture ratio of each subpixel and the overall aperture ratio of the subpixel group to which it belongs.

[0102] In some examples, as shown in FIG7, the orthographic projection of the light-emitting functional layer 141 of the second color sub-pixel 140b onto the substrate 110 comprises a trapezoid. For example, the trapezoid may be an isosceles trapezoid. For example, each corner of the trapezoid may be rounded. A portion of the light-emitting functional layer 141 of the second color sub-pixel 140b is located in two different interval regions, which can better utilize the interval region S1 and increase the area of ​​the light-emitting functional layer 141 of the second color sub-pixel 140b and the aperture ratio of the second color sub-pixel 140b.

[0103] In some examples, as shown in FIG7, the orthographic projection of the light-emitting functional layer 141 of the third color sub-pixel 140c in each sub-pixel group onto the substrate 110 includes at least one pair of sides perpendicular to each other. For example, as shown in FIG7, the orthographic projection of the light-emitting functional layer 141 of the third color sub-pixel 140c onto the substrate 110 includes two pairs of sides perpendicular to each other. For example, the orthographic projection of the light-emitting functional layer 141 of the third color sub-pixel 140c onto the substrate 110 includes a hexagon. For example, each corner of the hexagon may be rounded. This configuration allows the area of ​​the light-emitting functional layer 141 of each color sub-pixel in each sub-pixel group to be larger, improving the aperture ratio of each sub-pixel and the overall aperture ratio of the sub-pixel group to which it belongs.

[0104] Figure 9 is a comparison of the aperture ratio of each sub-pixel of the display substrate shown in Figure 7 and the traditional sRGB pixel arrangement. As shown in Figure 9, the aperture ratio of each color sub-pixel of the display substrate shown in Figure 7 is significantly improved compared with the traditional sRGB pixel arrangement, and the absolute value of the overall aperture ratio of each sub-pixel group is increased by 2.58%, and the relative value is increased by 10.6%.

[0105] Figure 10 is a planar schematic diagram of another display substrate provided in an embodiment of this disclosure. As shown in Figure 10, the orthogonal projection of the light-emitting functional layer 141 of the first color sub-pixel 140a of the first sub-pixel group G01 onto the substrate 110 includes a third protrusion 141c, which protrudes toward the third color sub-pixel 140c. The orthogonal projection of the light-emitting functional layer 141 of the third color sub-pixel 140c of the first sub-pixel group G01 onto the substrate 110 includes a second clearance portion 141f to clearance the third protrusion 141c. For example, the provision of the third protrusion 141c can increase the area of ​​the light-emitting functional layer 141 of the first color sub-pixel 140a and improve the aperture ratio of the first color sub-pixel 140a. For example, by adjusting the relative relationship or size of the third protrusion 141c and the second clearance portion 141f, the area of ​​the light-emitting functional layer 141 of the first color sub-pixel 140a and the third color sub-pixel 140c can be adjusted, so that both color sub-pixels have a better aperture ratio, and the overall aperture ratio of the sub-pixel group to which they belong is also in a better state. For example, the relative relationship or size of the third protrusion 141c and the second clearance portion 141f can also be adjusted so that the aperture ratio of the two color sub-pixels meets the set requirements.

[0106] In some examples, as shown in Figure 10, the orthographic projection of the light-emitting functional layer 141 of the first color sub-pixel 140a of the third sub-pixel group G03 onto the substrate 110 includes a fourth protrusion 141d. The fourth protrusion 141d protrudes toward the third color sub-pixel 140c of the first sub-pixel group G01, and the second abutment 141f also abuts the fourth protrusion 141d. The orthographic projection of the light-emitting functional layer 141 of the first color sub-pixel 140a of each sub-pixel group onto the substrate 110 includes a third protrusion 141c and a fourth protrusion 141d. The third protrusion 141c and the fourth protrusion 141d respectively protrude toward two adjacent third color sub-pixels 140c along the first direction X. Two adjacent third color sub-pixels 140c along the first direction X means that there is no third color sub-pixel 140c between the two third color sub-pixels 140c in the first direction X, but there may be sub-pixels of other colors or other structures. For example, the arrangement of the third protrusion 141c and the fourth protrusion 141d can increase the area of ​​the light-emitting functional layer 141 of the first color sub-pixel 140a, thereby improving the aperture ratio of the first color sub-pixel 140a. For example, by adjusting the relative relationship or size of the third protrusion 141c, the fourth protrusion 141d, and the second clearance portion 141f, the area of ​​the light-emitting functional layer 141 of the first color sub-pixel 140a and the third color sub-pixel 140c can be adjusted.

[0107] In some examples, as shown in FIG10, the orthographic projection of the light-emitting functional layer 141 of the first color sub-pixel 140a of each sub-pixel group onto the substrate 110 comprises a trapezoid. For example, the trapezoid may be an isosceles trapezoid. For example, the orthographic projection of the light-emitting functional layer 141 of the second color sub-pixel 140b onto the substrate 110 comprises a trapezoid. For example, the trapezoid may be an isosceles trapezoid. For example, the orthographic projection of the light-emitting functional layer 141 of the third color sub-pixel 140c onto the substrate 110 comprises a hexagon. For example, the hexagon is axially symmetric. For example, each corner of the orthographic projection of the light-emitting functional layer 141 of the first color sub-pixel 140a, second color sub-pixel 140b, and third color sub-pixel 140c of each sub-pixel group onto the substrate 110 may be rounded.

[0108] Figure 11 is a comparison of the aperture ratio of each sub-pixel of the display substrate shown in Figure 10 and the traditional sRGB pixel arrangement. As shown in Figure 11, the aperture ratio of each color sub-pixel of the display substrate shown in Figure 10 is significantly improved compared with the traditional sRGB pixel arrangement, and the absolute value of the overall aperture ratio of each sub-pixel group is increased by 2.36%, and the relative value is increased by 9.7%.

[0109] Figure 12 is a planar schematic diagram of another display substrate provided in an embodiment of this disclosure. As shown in Figure 12, the orthographic projection of the light-emitting functional layer 141 of the second color sub-pixel 140b of each sub-pixel group onto the substrate 110 includes a first protrusion 141a and a second protrusion 141b. The orthographic projection of the light-emitting functional layer 141 of the first color sub-pixel 140a of each sub-pixel group onto the substrate 110 includes a third protrusion 141c and a fourth protrusion 141d. The orthographic projection of the light-emitting functional layer 141 of the third color sub-pixel 140c of each sub-pixel group onto the substrate 110 includes a first clearance portion 141e and a second clearance portion 141f. The first clearance portion 141e clearances the first protrusion 141a and the second protrusion 141b of the light-emitting functional layer 141 of two adjacent second color sub-pixels 140b along the first direction X. The second clearance portion 141f clearances the third protrusion 141c and the fourth protrusion 141d of the light-emitting functional layer 141 of two adjacent first color sub-pixels 140a along the first direction X.

[0110] As shown in Figure 12, the orthographic projection of the light-emitting functional layer 141 of the third color sub-pixel 140c onto the substrate 110 also includes a main body portion 141g. A first clearance portion 141e and a second clearance portion 141f are located on either side of the main body portion 141g along the second direction Y. The main body portion 141g includes two sides that are opposite each other and parallel to the second direction Y. For example, the orthographic projection of the light-emitting functional layer 141 of the third color sub-pixel 140c onto the substrate 110 includes an octagon. For example, this octagon is axially symmetric.

[0111] Figure 13 is a comparison of the aperture ratio of each sub-pixel of the display substrate shown in Figure 12 and the traditional sRGB pixel arrangement. As shown in Figure 13, the aperture ratio of each color sub-pixel of the display substrate shown in Figure 12 is significantly improved compared with the traditional sRGB pixel arrangement, and the absolute value of the overall aperture ratio of each sub-pixel group is increased by 1.62%, and the relative value is increased by 6.7%.

[0112] Figure 14 is a plan view of another display substrate provided in an embodiment of this disclosure; Figure 15 is a partial enlarged view of the display substrate shown in Figure 14 at the dashed frame. As shown in Figures 2, 14 and 15, each sub-pixel also includes a pixel driving circuit 120 electrically connected to a light-emitting element. The light-emitting functional layer 141 of the second color sub-pixel 140b of each sub-pixel group includes a first portion 1413 and a second portion 1414, which are configured to be driven by the same pixel driving circuit 120. The first portion 1413 of the light-emitting functional layer 141 of the second color sub-pixel 140b of the first sub-pixel group G01 has at least a partial orthogonal projection onto the substrate 110 located within the spacing region S1. For example, as shown in Figures 14 and 15, the entire orthogonal projection of the first portion 1413 onto the substrate 110 is located within the spacing region S1.

[0113] In this embodiment, by ensuring that part or all of the first portion 1413 is located within the interval region S1, the interval region S1 can be effectively utilized. This maximizes the area of ​​the light-emitting functional layer 141 of the sub-pixel located within the interval region S1, increases the area of ​​the light-emitting region of the sub-pixel, and consequently maximizes the aperture ratio of the sub-pixel located within the interval region S1, thereby increasing the overall aperture ratio of the sub-pixel group to which it belongs. For example, when the first portion 1413 is entirely located within the interval region S1, the utilization rate of the interval region S1 is 100%.

[0114] In some examples, as shown in FIG14, the first portion 1413 and the second portion 1414 of the light-emitting functional layer 141 of the second color sub-pixel 140b of each sub-pixel group are arranged along the first direction X, and the spacing between the first portion 1413 and the second portion 1414 is zero. The first portion 1413 and the second portion 1414 are configured to be formed by different masks.

[0115] As shown in Figures 14 and 15, the second color sub-pixel 140b of the first sub-pixel group G01 is located on the side of the first color sub-pixel 140a closer to the second sub-pixel group G02. The first portion 1413 of the light-emitting functional layer 141 of the second color sub-pixel 140b of the first sub-pixel group G01 is entirely located within the spacing region S1. By making the spacing between the first portion 1413 and the second portion 1414 zero, the second color sub-pixel 140b and each sub-pixel group can have a better display effect. The first portion 1413 and the second portion 1414 are arranged along the first direction X, which is more conducive to the first portion 1413 being entirely located within the spacing region S1, maximizing the utilization rate of the spacing region S1, and improving the aperture ratio of the second color sub-pixel 140b and the entire sub-pixel group.

[0116] For example, as shown in Figures 14 and 15, the orthographic projection of the first portion 1413 onto the substrate 110 coincides with the orthographic projection of the spacing region S1 onto the substrate 110. For example, the spacing between the first portion 1413 of the second color sub-pixel 140b of the first sub-pixel group G01 and the second color sub-pixel 140b of the second sub-pixel group G02 is zero.

[0117] In some examples, as shown in Figure 14, the pattern formed by the orthographic projection of the light-emitting functional layers 141 of the first color subpixel 140a, the second color subpixel 140b, and the third color subpixel 140c of each subpixel group onto the substrate 110 includes a rectangle. For example, the rectangle can be a square. This arrangement not only allows each subpixel group to have a better display effect but also allows each subpixel group to have a higher overall aperture ratio.

[0118] In some examples, as shown in Figure 14, the light-emitting functional layer 141 of the first color subpixel 140a, the second color subpixel 140b, and the third color subpixel 140c of each subpixel has a rectangular projection onto the substrate 110. This configuration not only improves the display effect of each subpixel and each subpixel group, but also allows for an increase in the aperture ratio of each color subpixel by adjusting the relative size or relative positional relationship between the color subpixels within each subpixel group. Furthermore, the aperture ratio and display area of ​​each color subpixel can be set according to requirements.

[0119] Figure 16 is a comparison of the aperture ratio of each sub-pixel of the display substrate shown in Figure 3 and the traditional sRGB pixel arrangement. As shown in Figure 5, the aperture ratio of each color sub-pixel of the display substrate shown in Figure 3 is significantly improved compared with the traditional sRGB pixel arrangement, and the absolute value of the overall aperture ratio of each sub-pixel group is increased by 6.2%, and the relative value is increased by 16.7%.

[0120] Figure 17 is a planar schematic diagram of another display substrate provided in an embodiment of the present disclosure. As shown in Figure 17, the first portion 1413 and the second portion 1414 of the second color sub-pixel 140b are separate. For example, the separate first portion and the second portion can be formed using the same mask, which can save process steps, etc. Figure 17 schematically shows that the first portion 1413 of the second color sub-pixel 140b substantially coincides with the spacing region S1. However, the embodiments of the present disclosure do not limit this.

[0121] Figure 18 is a planar schematic diagram of another display substrate provided in an embodiment of this disclosure. As shown in Figure 18, the area of ​​the first portion 1413 of the second color sub-pixel 140b of the first sub-pixel group G01 projected onto the substrate 110 is smaller than the area of ​​the spacing region S1. For example, the first portion 1413 of the second color sub-pixel 140b of the first sub-pixel group G01 is spaced apart from the second portion 1414 of the second color sub-pixel 140b of the second sub-pixel group G02.

[0122] This disclosure also provides a display device. FIG19 is a schematic diagram of a display device provided in an embodiment of this disclosure. As shown in FIG19, the display device 200 includes any of the display substrates 100 mentioned above, and thus, the display device 200 has the beneficial effects corresponding to the beneficial effects of the display substrate 100, which will not be described in detail here.

[0123] For example, the display device 200 can be any product or component with display function, such as a high-resolution mobile phone, wearable device, laptop, tablet, television, navigator, virtual reality device, etc.

[0124] The following points need to be explained:

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

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

[0127] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A display substrate, comprising: Substrate, and Multiple sub-pixels are located on the substrate, and each sub-pixel includes a light-emitting element, the light-emitting element including a light-emitting functional layer. The plurality of sub-pixels includes a plurality of first-color sub-pixels, a plurality of second-color sub-pixels, and a plurality of third-color sub-pixels. The plurality of sub-pixels are divided into a plurality of sub-pixel groups, and each sub-pixel group includes one first-color sub-pixel, one second-color sub-pixel, and one third-color sub-pixel. The plurality of sub-pixel groups are arranged in an array along a first direction and a second direction intersecting the first direction. The brightness centers of the first color sub-pixels and the second color sub-pixels of each of the sub-pixel groups are located on the same side of the brightness center of the third color sub-pixel along the first direction. The plurality of third color sub-pixels of the plurality of sub-pixel groups arranged along the second direction are arranged along the second direction. The plurality of first color sub-pixels and the plurality of second color sub-pixels of the plurality of sub-pixel groups arranged along the second direction are alternately arranged along the second direction. The plurality of sub-pixel groups include a first sub-pixel group, a second sub-pixel group, and a third sub-pixel group. The first sub-pixel group and the second sub-pixel group are adjacent in the second direction, and the first sub-pixel group and the third sub-pixel group are adjacent in the first direction. In the first direction, the light-emitting functional layer of the third color sub-pixel of the first sub-pixel group is located between the orthogonal projections of the light-emitting functional layers of the two first color sub-pixels of the first sub-pixel group and the third sub-pixel group onto the substrate. In the first direction, the light-emitting functional layer of the third color sub-pixel of the first sub-pixel group is located between the orthogonal projections of the light-emitting functional layers of the two second color sub-pixels of the first sub-pixel group and the third sub-pixel group onto the substrate. The light-emitting functional layer of the third color sub-pixel in the first sub-pixel group, when projected onto the substrate, includes a first side; the light-emitting functional layer of the third color sub-pixel in the second sub-pixel group, when projected onto the substrate, includes a second side. The first side and the second side are arranged opposite to each other, and the two ends of the first side and the two ends of the second side are sequentially connected to form four lines, which enclose a spacing region. The light-emitting functional layer of at least one of the two first-color sub-pixels and two second-color sub-pixels in the first sub-pixel group and the second sub-pixel group is located in the spacing region in the orthogonal projection portion of the substrate.

2. The display substrate according to claim 1, wherein, The second color sub-pixel of the first sub-pixel group is located on the side of the first color sub-pixel closer to the second sub-pixel group. The light-emitting functional layer of the second color sub-pixel of the first sub-pixel group is located in the spacing region in the orthogonal projection portion of the substrate.

3. The display substrate according to claim 2, further comprising: A pixel defining layer is located on the substrate. Each of the sub-pixels further includes a pixel opening located in the pixel defining layer. In each of the sub-pixels, the light-emitting functional layer includes a first sub-part located inside the pixel opening and a second sub-part located outside the pixel opening. The first sub-part of the light-emitting functional layer of the second color sub-pixel of the first sub-pixel group is located in the spacing region in the orthogonal projection of the substrate.

4. The display substrate according to claim 2, wherein, The light-emitting functional layer of the second color sub-pixel of the first sub-pixel group, in its orthographic projection on the substrate, includes a first protrusion that protrudes toward the spacing region such that at least a portion of the first protrusion is located within the spacing region. The light-emitting functional layer of the third color sub-pixel of the first sub-pixel group, in its orthographic projection on the substrate, includes a first avoidance portion to avoid the first protrusion.

5. The display substrate according to claim 2, wherein, The first clearance portion includes a third side connected to the first side and adjacent to the first protrusion, the third side having a first angle with the second direction, the first angle being between 10 degrees and 50 degrees.

6. The display substrate according to any one of claims 2-5, wherein, The light-emitting functional layer of the second color sub-pixel in the first sub-pixel group is spaced apart from the light-emitting functional layer of the second color sub-pixel in the third sub-pixel group.

7. The display substrate according to claim 6, wherein, The spacing between the light-emitting functional layers of the two second-color sub-pixels in the first sub-pixel group and the third sub-pixel group is not greater than the spacing between the light-emitting functional layers of the two third-color sub-pixels in the first sub-pixel group and the second sub-pixel group.

8. The display substrate according to claim 6, wherein, The space enclosed by the light-emitting functional layers of the second color sub-pixel and the third color sub-pixel of the first sub-pixel group, the light-emitting functional layer of the third color sub-pixel of the second sub-pixel group, and the light-emitting functional layer of the second color sub-pixel of the third sub-pixel group, in the orthogonal projection of the substrate comprises a trapezoid, wherein the two mutually parallel sides of the trapezoid are the first side and the second side.

9. The display substrate according to claim 8, wherein, The trapezoid is at least one of a right trapezoid and an isosceles trapezoid.

10. The display substrate according to any one of claims 1-5, wherein, The orthographic projection of the light-emitting functional layer of the first color sub-pixel and the third color sub-pixel of each sub-pixel group onto the substrate includes a pair of sides parallel to the first direction and aligned with each other, and / or The light-emitting functional layer of the first color subpixel and the second color subpixel of each subpixel group, when projected onto the substrate, includes a pair of sides that are parallel to the second direction and flush with each other.

11. The display substrate according to any one of claims 1-5, wherein, The light-emitting functional layer of the first color sub-pixel and the third color sub-pixel of each sub-pixel group, when projected onto the substrate, includes a pair of adjacent sides that are parallel to the second direction.

12. The display substrate according to claim 11, wherein, The orthographic projection of the light-emitting functional layer of the first color sub-pixel of each sub-pixel group onto the substrate includes a rectangle, the orthographic projection of the light-emitting functional layer of the second color sub-pixel onto the substrate includes a pentagon, and the orthographic projection of the light-emitting functional layer of the third color sub-pixel onto the substrate includes a right trapezoid.

13. The display substrate according to any one of claims 2-6, wherein, The light-emitting functional layers of the second color sub-pixel in the first sub-pixel group and the second color sub-pixel in the third sub-pixel group are partially located in the same interval region when projected onto the substrate.

14. The display substrate according to claim 13, wherein, The light-emitting functional layer of the second color sub-pixel of the first sub-pixel group, when projected onto the substrate, includes a first protrusion that protrudes toward the spacing region such that at least a portion of the first protrusion is located within the spacing region. Similarly, the light-emitting functional layer of the second color sub-pixel of the third sub-pixel group, when projected onto the substrate, includes a second protrusion that protrudes toward the spacing region such that at least a portion of the second protrusion is located within the spacing region. The light-emitting functional layer of the third color sub-pixel of the first sub-pixel group, when projected onto the substrate, includes a first clearance portion to avoid the first protrusion and the second protrusion.

15. The display substrate according to claim 14, wherein, The first clearance portion includes a third side and a fourth side. The third side is connected to the first side and is adjacent to the first protrusion. The fourth side is connected to the first side and is adjacent to the second protrusion. The third side has a first angle with the second direction and the fourth side has a second angle with the second direction. The values ​​of the first angle and the second angle are both between 10 degrees and 50 degrees.

16. The display substrate according to claim 14, wherein, The light-emitting functional layers of the first color sub-pixel and the third color sub-pixel of each sub-pixel group, when projected onto the substrate, include a pair of adjacent sides that are parallel to the second direction. The light-emitting functional layer of the third color sub-pixel of the first sub-pixel group and the light-emitting functional layer of the first color sub-pixel of the third sub-pixel group, when projected onto the substrate, include a pair of adjacent sides that are parallel to the second direction.

17. The display substrate according to claim 16, wherein, The orthographic projection of the light-emitting functional layer of the first color sub-pixel onto the substrate is a rectangle, the orthographic projection of the light-emitting functional layer of the second color sub-pixel onto the substrate is an isosceles trapezoid, and the orthographic projection of the light-emitting functional layer of the third color sub-pixel onto the substrate is a hexagon.

18. The display substrate according to claim 13, wherein, The light-emitting functional layer of the first color sub-pixel of the first sub-pixel group, when projected onto the substrate, includes a third protrusion that protrudes toward the third color sub-pixel. The light-emitting functional layer of the third color sub-pixel of the first sub-pixel group, when projected onto the substrate, includes a second avoidance portion to avoid the third protrusion.

19. The display substrate according to claim 18, wherein, The light-emitting functional layer of the first color sub-pixel of the third sub-pixel group, when projected onto the substrate, includes a fourth protrusion. The fourth protrusion protrudes toward the third color sub-pixel of the first sub-pixel group, and the second avoidance portion also avoids the fourth protrusion.

20. The display substrate according to claim 18, wherein, The light-emitting functional layer of the first color sub-pixel in each of the sub-pixel groups has a trapezoidal shape in its orthogonal projection onto the substrate, the light-emitting functional layer of the second color sub-pixel has a trapezoidal shape in its orthogonal projection onto the substrate, and the light-emitting functional layer of the third color sub-pixel has at least one hexagonal or octagonal shape in its orthogonal projection onto the substrate.

21. The display substrate according to claim 1, wherein, Each sub-pixel further includes a pixel driving circuit electrically connected to the light-emitting element, and the light-emitting functional layer of the second color sub-pixel of each sub-pixel group includes a first part and a second part, the first part and the second part being configured to be driven by the same pixel driving circuit. The first portion of the light-emitting functional layer of the second color subpixel of the first subpixel group or the second subpixel group is at least partially located within the spacing region in the orthogonal projection of the substrate.

22. The display substrate according to claim 21, wherein, The first and second portions of the light-emitting functional layer of the second color subpixel in each of the subpixel groups are arranged along a first direction, and the spacing between the first and second portions is zero. The first and second portions are configured to be formed by different masks. The second color sub-pixel of the first sub-pixel group is located on the side of the first color sub-pixel that is close to the second sub-pixel group, and the first part of the light-emitting functional layer of the second color sub-pixel of the first sub-pixel group is entirely located within the interval region.

23. The display substrate according to claim 22, wherein, The pattern formed by the orthographic projection of the light-emitting functional layers of the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel of each sub-pixel group onto the substrate includes a rectangle.

24. The display substrate according to claim 23, wherein, The light-emitting functional layers of the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel of each of the sub-pixels have a rectangle in their orthogonal projection onto the substrate.

25. The display substrate according to any one of claims 1-24, further comprising: A pixel defining layer is located on the substrate. Each sub-pixel further includes a pixel opening located in the pixel defining layer. In each sub-pixel, the light-emitting functional layer portion is located within the pixel opening, and the orthographic projection of the pixel opening onto the substrate is located within the orthographic projection of the light-emitting functional layer onto the substrate. The light-emitting functional layer of each sub-pixel and the pixel opening are projected onto the substrate as a first orthographic projection and a second orthographic projection, respectively. The edges of the first orthographic projection and the edges of the second orthographic projection are equally spaced. The spacing between the pixel openings of the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel of each sub-pixel group when projected onto the substrate is equal.

26. A display device comprising a display substrate according to any one of claims 1-25.

Images