Display substrate, display panel and display device

Abstract

The utility model discloses a display substrate, a display panel and a display device. The display substrate comprises a substrate body, sub-pixels and spacers, wherein the sub-pixels and the spacers are located on the substrate body. The sub-pixels include sub-pixels of different colors. The spacers comprise at least two different types of spacers, the orthographic projection of each type of spacer on the substrate is surrounded by the orthographic projection of the light-emitting areas of the at least two different colors of sub-pixels on the substrate, and the at least two different colors of sub-pixels comprise one specific color of sub-pixel. The orthographic projection centers of the different types of spacers point to the orthographic projection centers of the light-emitting areas of the specific color sub-pixels surrounding the spacers in different directions. According to the display substrate, the plurality of spacers are arranged to comprise at least two different types of spacers, and the different types of spacers are different from the sub-pixels surrounding the spacers in relative position relation, so that the supporting effect of the spacers on the mask plate is improved, the probability that the mask plate scratches a structure in the display substrate is reduced, and the yield of the display substrate is improved.

Description

Technical Field

[0001] Embodiments of the present utility model relate to a display substrate, a display panel, and a display device. Background Art

[0002] Organic light-emitting diode (OLED) display devices are widely used in the field of electronic products due to their many advantages such as low power consumption, fast response, wide viewing angle, and good flexibility. Currently, red light-emitting materials, green light-emitting materials, and blue light-emitting materials in OLED devices are evaporated onto corresponding pixel openings through a fine metal mask (FMM). During the above evaporation process, panel spacers (PS) for supporting the mask are provided on the substrate side. Content of the Utility Model

[0003] The present utility model provides a display substrate, a display panel, and a display device.

[0004] The present utility model provides a display substrate, including: a substrate and a plurality of sub-pixels and a plurality of spacers located on the substrate. The plurality of sub-pixels include a plurality of sub-pixels of different colors. The plurality of spacers include at least two different types of spacers. For each type of spacer, at least some of the spacers are surrounded by the projections of the light-emitting regions of at least two different color sub-pixels on the substrate. The at least two different color sub-pixels include a specific color sub-pixel, and the directions of the projection centers of different types of spacers pointing to the projection center of the light-emitting region of the specific color sub-pixel surrounding them are different.

[0005] For example, according to an embodiment of the present utility model, the arrangement order of the sub-pixels surrounding different types of spacers in the same direction is different, and the same direction includes one of the clockwise direction and the counterclockwise direction.

[0006] For example, according to an embodiment of the present utility model, the at least two different color sub-pixels surrounding the same spacer include four sub-pixels, and among the four sub-pixels, the number of the specific color sub-pixels is one.

[0007] For example, according to an embodiment of the present utility model, the at least two different types of spacers include four different types of spacers. The plurality of spacers are arranged in an array along a first direction and a second direction, and the first direction intersects the second direction; the centers of the projections of the plurality of spacers on the substrate are connected to form a grid shape, and the shape of the smallest unit of the grid shape is a quadrilateral, and the four vertices of the quadrilateral are the centers of the projections of the four different types of spacers on the substrate.

[0008] For example, according to an embodiment of the present utility model, at least one type of color sub-pixels among the multiple sub-pixels are arranged in an array along a first arrangement direction and a second arrangement direction, and the first arrangement direction intersects with the second arrangement direction; there are M sub-pixels provided between two first straight lines passing through the centers of two adjacent different types of spacers, and there are N sub-pixels provided between two second straight lines passing through the centers of the two adjacent different types of spacers. The first straight line extends along the first arrangement direction, the second straight line extends along the second arrangement direction, the M sub-pixels are arranged along the second arrangement direction, the N sub-pixels are arranged along the first arrangement direction, the sum of M and N is an odd number, and M and N are integers greater than or equal to 0.

[0009] For example, according to an embodiment of the present utility model, the at least two different types of spacers include four different types of spacers, and the multiple spacers are arranged in an array along a first direction and a second direction, and the first direction intersects with the second direction; the included angles between the first direction and both the first arrangement direction and the second arrangement direction are greater than 0 and less than 90 degrees.

[0010] For example, according to an embodiment of the present utility model, the included angle between the first direction and the first arrangement direction is a first included angle, the included angle between the second direction and the second arrangement direction is a second included angle, and the difference between the first included angle and the second included angle is not greater than 5 degrees.

[0011] For example, according to an embodiment of the present utility model, the at least two different types of spacers include four different types of spacers, and the multiple spacers are arranged in an array along a first direction and a second direction, and the first direction intersects with the second direction; the first direction is substantially parallel to one of the first arrangement direction and the second arrangement direction, and the second direction is substantially parallel to the other of the first arrangement direction and the second arrangement direction.

[0012] For example, according to an embodiment of the present utility model, the four different types of spacers include a first spacer, a second spacer, a third spacer, and a fourth spacer. The first spacer and the third spacer are alternately arranged along the first direction, the second spacer and the fourth spacer are alternately arranged along the first direction, and the first spacer and the second spacer are alternately arranged along the second direction, and the third spacer and the fourth spacer are alternately arranged along the second direction.

[0013] For example, according to an embodiment of the present utility model, the multiple different color sub-pixels include a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel. The sub-pixels surrounding the same spacer include one first color sub-pixel, one second color sub-pixel, and two third color sub-pixels.

[0014] For example, according to an embodiment of the present utility model, one of the first color sub-pixels and the second color sub-pixels is the specific color sub-pixel.

[0015] For example, according to an embodiment of the present utility model, the multiple different color sub-pixels include a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel. The sub-pixels surrounding the same spacer include four sub-pixels, and two of the four sub-pixels are first sub-pixels that emit the same color light, and the other two sub-pixels are second sub-pixels that emit another color light. The first sub-pixels and the second sub-pixels are two different color sub-pixels among the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel.

[0016] For example, according to an embodiment of the present utility model, one of the first sub-pixels and the second sub-pixels is the specific color sub-pixel.

[0017] For example, according to an embodiment of the present utility model, both M and N are greater than 1.

[0018] For example, according to an embodiment of the present utility model, the multiple different color sub-pixels include a first sub-pixel group and a second sub-pixel group that are alternately arranged along a first direction. The first sub-pixel group includes the first color sub-pixel and the third color sub-pixel that are alternately arranged along a second direction, and the second sub-pixel group includes the second color sub-pixel and the third color sub-pixel that are alternately arranged along the second direction. The third color sub-pixels located in the first sub-pixel group and the third color sub-pixels located in the second sub-pixel group are staggeredly distributed in the second direction; the first direction intersects the second direction.

[0019] For example, according to an embodiment of the present utility model, the display substrate further includes: a pixel defining pattern located on the substrate. The pixel defining pattern includes a plurality of openings and a pixel defining portion surrounding the plurality of openings. The plurality of openings are configured to define the light emitting regions of at least some of the plurality of sub-pixels, and the distance between the surface of the spacer away from the substrate and the substrate is greater than the distance between the surface of the flat portion of the pixel defining portion away from the substrate and the substrate.

[0020] For example, according to an embodiment of the present utility model, at least some of the sub-pixels include a light emitting functional layer and a first electrode and a second electrode located on both sides of the light emitting functional layer in a direction perpendicular to the substrate. The light emitting functional layer includes at least two light emitting layers stacked.

[0021] For example, according to an embodiment of the present utility model, the sum of M and N is 3 or 5.

[0022] Another embodiment of the present utility model provides a display panel, including any one of the above-mentioned display substrates.

[0023] Another embodiment of the present utility model provides a display device, including any one of the above-mentioned display substrates.

[0024] By setting multiple spacers to include at least two different types of spacers, and the relative positional relationship between different types of spacers and the sub-pixels surrounding them is different, it is beneficial to improve the support effect of the spacers on the mask plate, reduce the probability of the mask plate scratching the structures in the display substrate, and thus improve the yield of the display substrate. Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present utility model and do not limit the present utility model.

[0026] Figure 1 It is a schematic diagram of pixel arrangement and spacer arrangement.

[0027] Figure 2 For normal formation Figure 1 It is a schematic diagram when the mask plate of the blue sub-pixel in the shown pixel arrangement is supported by the spacer.

[0028] Figure 3 For formation Figure 1 It is a schematic diagram after the mask plate of the shown blue sub-pixel is misaligned relative to the spacer.

[0029] Figure 4 It is a schematic diagram of a partial planar structure of a display substrate provided according to an example of an embodiment of the present utility model.

[0030] Figure 5 For Figure 4 It is a partial enlarged view of the shown display substrate.

[0031] Figure 6 For Figure 4 It is a schematic diagram of the stacked relationship when the spacer supports the mask plate.

[0032] Figures 7A to 7F It is a schematic diagram of a partial planar structure of a display substrate provided according to different examples of an embodiment of the present utility model.

[0033] Figure 8 It is a schematic diagram of a partial cross-sectional structure of a display substrate provided according to an embodiment of the present utility model.

[0034] Figure 9 It is a schematic block diagram of a display device provided according to another embodiment of the present utility model. Detailed Description of the Embodiments

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions of the embodiments of the present utility model in conjunction with the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the described embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0036] Unless otherwise defined, the technical terms or scientific terms used in the present utility model should have the ordinary meaning understood by those with ordinary skills in the field to which the present utility model belongs. The "first", "second", and similar terms used in the present utility model do not indicate any order, quantity, or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or objects appearing before the term cover the elements or objects listed after the term and their equivalents, without excluding other elements or objects.

[0037] In at least one embodiment of the present utility model, features such as "parallel", "perpendicular", and "identical" include the strict meanings of "parallel", "perpendicular", "identical", etc., as well as situations with certain errors such as "substantially parallel", "substantially perpendicular", and "substantially identical". Considering measurement and errors related to the measurement of specific quantities (for example, limitations of the measurement system), it means within the acceptable deviation range for a specific value determined by those of ordinary skill in the art. For example, "substantially" can mean within one or more standard deviations, or within 10% or 5% of the value. When the quantity of a component is not specifically indicated in the following text of the embodiments of the present utility model, it means that the component can be one or more, or can be understood as at least one. "At least one" means one or more, and "multiple" means at least two. The "integrally arranged structure" in the present utility model refers to a structure in which two (or more than two) structures are formed through the same deposition process and patterned through the same lithography process to form a connected structure, and their materials can be the same or different.

[0038] Figure 1 It is a schematic diagram of pixel arrangement and spacer arrangement. Figure 2 For normal formation Figure 1 It is a schematic diagram when the mask for the blue sub-pixels in the pixel arrangement shown is supported by spacers. Figure 3 For formation Figure 1 It is a schematic diagram after the mask for the blue sub-pixels shown is misaligned relative to the spacers.

[0039] As Figure 1As shown, a pixel arrangement includes a plurality of sub-pixels 011 of different colors, such as a plurality of red sub-pixels R, a plurality of blue sub-pixels B, and a plurality of green sub-pixels G. For example, the plurality of blue sub-pixels are arranged in an array in the X direction and the Y direction. For example, the plurality of red sub-pixels are arranged in an array in the X direction and the Y direction.

[0040] Such as Figure 1 As shown, a plurality of spacers 012 are evenly distributed. For example, the plurality of spacers 012 are arranged in an array in the X direction and the Y direction. For example, four sub-pixels 011 are provided between two adjacent spacers 012 arranged along at least one of the X direction and the Y direction. For example, each spacer 012 is surrounded by four sub-pixels 011. Such as the four sub-pixels 011 include one red sub-pixel R, one blue sub-pixel B, and two green sub-pixels G, and the direction of the center of each spacer 012 pointing to the center of the blue sub-pixel B surrounding it is the same. For example, taking the relative position relationship between the spacer 012 and the sub-pixels 011 surrounding it as a measurement standard, the relative position relationship between each spacer 012 and the sub-pixels 011 surrounding it is the same. Thus, the plurality of spacers 012 only include one type of spacer 012.

[0041] Such as Figure 2 The fine metal mask 013 shown includes a plurality of mask openings 014. The plurality of mask openings 014 can be a mask for evaporating the light-emitting material of the above-mentioned blue sub-pixel B, or can be a mask for evaporating the light-emitting material of the above-mentioned red sub-pixel R. Figure 2 Schematically shows that the mask 013 is for evaporating Figure 1 The mask of the blue sub-pixel B shown.

[0042] Such as Figure 2 As shown, during ideal evaporation, the mask opening 014 of the mask 013 only exposes the pixel opening corresponding to the blue sub-pixel to evaporate the blue light-emitting material, while the mask part between adjacent mask openings 014 covers the pixel openings of the red sub-pixel and the green sub-pixel, as well as the spacer 012. For example, the spacer 012 contacts the mask part supporting the mask 013 to play a role in supporting the mask 013.

[0043] In the research, the inventors of the present application found that: Such as Figure 3As shown, during actual evaporation coating, the mask 013 may shift within a certain range, such as within a range of 1 / 2 of the size of the pixel definition interval (PDL GAP). At this time, the opening 014 of the mask 013 exposes most of the spacers 012. Since the spacers 012 only include one type of spacer 012, the size of each spacer 012 exposed by the opening 014 of the mask 013 is quite the same. The mask 013 cannot cover a large area of the spacers 012, and the supporting effect of the spacers 012 on the mask 013 is severely weakened, resulting in the mask 013 possibly scraping the light-emitting material within the pixel opening, forming bright spots or dark spots, and reducing the yield of the display substrate.

[0044] The present utility model provides a display substrate, a display panel, and a display device. The display substrate includes a substrate and a plurality of sub-pixels and a plurality of spacers located on the substrate. The plurality of sub-pixels include a plurality of sub-pixels of different colors. The plurality of spacers include at least two different types of spacers. The orthographic projection of at least a part of each type of spacer on the substrate is surrounded by the orthographic projections of the light-emitting regions of at least two different color sub-pixels on the substrate. The at least two different color sub-pixels include a specific color sub-pixel, and the directions of the orthographic projection centers of different types of spacers pointing to the orthographic projection center of the light-emitting region of the specific color sub-pixel surrounding them are different.

[0045] By setting the plurality of spacers to include at least two different types of spacers, and the relative position relationships between different types of spacers and the sub-pixels surrounding them are different, it is beneficial to improve the supporting effect of the spacers on the mask, reduce the probability of the mask scraping the structures in the display substrate, and thus improve the yield of the display substrate.

[0046] The following describes the display substrate, the display panel, and the display device provided by the embodiments of the present utility model with reference to the accompanying drawings.

[0047] Figure 4 FIG. is a partial planar structure schematic diagram of a display substrate provided as an example according to an embodiment of the present utility model. Figure 5 For Figure 4 a partial enlarged view of the shown display substrate.

[0048] As Figure 4 and Figure 5As shown in the figure, the display substrate includes a substrate 10, and a plurality of sub-pixels 100 and a plurality of spacers 200 located on the substrate 10. The plurality of sub-pixels 100 include a plurality of sub-pixels 100 of different colors, and the plurality of spacers 200 include at least two different types of spacers 200. The orthographic projection of at least some of the spacers in each type of spacer 200 on the substrate 10 is surrounded by the orthographic projection of the light-emitting regions of at least two different color sub-pixels 100 on the substrate 10. The at least two different color sub-pixels 100 include a specific color sub-pixel 101, and the directions of the orthographic projection centers of different types of spacers 200 pointing to the orthographic projection center of the light-emitting region of the specific color sub-pixel 101 surrounding them are different.

[0049] By setting the plurality of spacers to include at least two different types of spacers, and the relative positional relationship between different types of spacers and the sub-pixels surrounding them is different, it is beneficial to improve the supporting effect of the spacers on the mask, reduce the probability of the mask scratching the structures in the display substrate, and thus improve the yield of the display substrate.

[0050] Figure 4 Schematically, each sub-pixel 100 is represented by a square, and the light-emitting region of the sub-pixel 100 can be the region within the square. For example, the spacer can also be called a panel spacer. For example, the orthographic projection of the spacer 200 located in the non-edge region on the substrate 10 is surrounded by the orthographic projection of the light-emitting regions of at least two different color sub-pixels 100 on the substrate 10. For example, the number of sub-pixels 100 adjacent to the spacer 200 in the non-edge region is four; only part of the edge of the orthographic projection of the spacer 200 located in the edge region on the substrate 01 is surrounded by the orthographic projection of the sub-pixel 100, such as the number of sub-pixels 100 adjacent to the spacer 200 in the edge region is less than four, such as one or two.

[0051] The above-mentioned sub-pixels 100 surrounding each type of spacer 200 may mean that there are no other sub-pixels 100 set between the sub-pixel 100 and the spacer 200. For example, the connection line between the geometric center of the orthographic projection of the light-emitting region of the sub-pixel 100 surrounding the spacer 200 on the substrate 10 and the geometric center of the orthographic projection of the spacer 200 on the substrate 10 does not pass through the orthographic projection of the light-emitting regions of other sub-pixels 100 on the substrate 10.

[0052] The number of the specific color sub-pixels 101 surrounding the same spacer 200 can be one, but is not limited to one, such as it can be two. For example, when selecting the specific color sub-pixel 101, the sub-pixel 100 with a quantity of one can be selected as much as possible.

[0053] The orthographic projection center of the spacer 200 refers to the geometric center of the orthographic projection of the spacer 200 on the substrate 10, and the orthographic projection center of the light-emitting region refers to the geometric center of the orthographic projection of the light-emitting region on the substrate 10.

[0054] The statement that "the directions from the orthographic projection centers of different types of spacers 200 to the orthographic projection centers of the light-emitting regions of the specific color sub-pixels 101 surrounding them are different" means that the relative positional relationships between the spacers 200 in different types of spacers 200 and the sub-pixels 100 surrounding them are different. Thus, the relative positional relationships between different types of spacers and the mask openings of the mask are different. When the mask shifts during the actual evaporation process, the offset amounts of the mask openings relative to different types of spacers are different. For example, after the mask opening shifts and only exposes one type of spacer, it is beneficial to reduce the number of spacers exposed by the mask opening.

[0055] For example, in the embodiments of the present invention, the shapes and sizes of different types of spacers 200 may be the same or different.

[0056] For example, as Figure 4 shown, at least two different types of spacers 200 may include two different types of spacers 200, three different types of spacers 200, or four different types of spacers 200, etc. For example, two different types of spacers 200 may include Figure 4 the first spacer 210 and the second spacer 220 shown, or the second spacer 220 and the third spacer 230, or the first spacer 210 and the third spacer 240, or the first spacer 210 and the fourth spacer 240, or the second spacer 220 and the fourth spacer 240, or the third spacer 230 and the fourth spacer 240, etc. The embodiments of the present invention do not limit this.

[0057] Figure 6 For Figure 4 the schematic diagram of the stacking relationship when the spacer supports the mask.

[0058] The present invention provides Figure 4 the pixel arrangement shown may be the same as Figure 1 the pixel arrangement shown, but relative to Figure 1 the display substrate including only one type of spacer 200 shown, at least two different types of spacers 200 are provided in the display substrate provided by the present invention. For example, as Figure 6As shown, when the mask 400 supported by the spacers 200 is offset during the evaporation of the light-emitting material, only one type of spacer 200, such as the first spacer 210, will be overly exposed by the mask opening 410 of the mask 400, while other types of spacers 200, such as the second spacer 220, still have a good supporting effect on the mask 400, thereby improving the supporting effect of the spacers 200 on the mask 400.

[0059] In some examples, such as Figure 5 As shown, at least two different types of spacers 200 include four different types of spacers 200. For example, the directions in which the centers of the orthographic projections of the four different types of spacers 200 point to the center of the orthographic projection of the light-emitting region of the specific color sub-pixel 101 surrounding them can be the pointing direction D1, the pointing direction D2, the pointing direction D3, and the pointing direction D4 respectively, and any one of the pointing direction D1, the pointing direction D2, the pointing direction D3, and the pointing direction D4 is different from the other three.

[0060] In some examples, such as Figure 4 and Figure 5 As shown, the arrangement order of the sub-pixels 100 around different types of spacers 200 is different in the same direction D0, and the same direction includes one of the clockwise direction and the counterclockwise direction. The relative positional relationship of the starting point of the above arrangement order with respect to different types of spacers 200 is the same. For example, the sub-pixel 100 where the starting point of the arrangement order of the sub-pixels 100 around different types of spacers is located may be the same color sub-pixel or different color sub-pixels.

[0061] The above arrangement order of the sub-pixels 100 around different types of spacers 200 reflects the different relative positional relationships between different types of spacers 200 and the sub-pixels 100 surrounding them. As a result, the relative positional relationships between different types of spacers 200 and the mask openings of the mask are different, which is beneficial to reducing the number of spacers 200 exposed by the mask openings when the mask is offset. For example, only one type of spacer 200 is exposed in a large size by the mask opening, and other spacers 200 still have a good supporting effect on the mask, so as to improve the supporting effect of the spacers 200 on the mask.

[0062] In some examples, such as Figure 4 As shown, at least two different color sub-pixels 100 around the same spacer 200 include four sub-pixels 100, and among the four sub-pixels 100, the number of the specific color sub-pixel 101 is one. Thus, by selecting the specific color sub-pixel 101, the positions of different types of spacers 200 can be determined more accurately.

[0063] In some examples, such as Figure 4As shown, a plurality of sub-pixels 100 of different colors include a first-color sub-pixel 110, a second-color sub-pixel 120, and a third-color sub-pixel 130. The number of sub-pixels 100 around the same spacer 200 is four. The four sub-pixels 100 include one first-color sub-pixel 110, one second-color sub-pixel 120, and two third-color sub-pixels 130.

[0064] In some examples, as Figure 4 shown, one of the first-color sub-pixel 110 and the second-color sub-pixel 120 is a specific-color sub-pixel 101.

[0065] Among the sub-pixels 100 around the same spacer 200, when the number of sub-pixels having the same color includes both one and multiple, such as including one blue sub-pixel and two green sub-pixels, taking the sub-pixel 100 with the number of sub-pixels having the same color being one, such as the blue sub-pixel, as the specific-color sub-pixel 101 is beneficial to more accurately and quickly determine the positions of different types of spacers 200.

[0066] For example, as Figure 4 shown, one of the first-color sub-pixel 110 and the second-color sub-pixel 120 can be a red sub-pixel, and the other can be a blue sub-pixel, and the third-color sub-pixel 130 is a green sub-pixel. Figure 4 Schematically, the first-color sub-pixel 110 is shown as a red sub-pixel R, the second-color sub-pixel 120 is shown as a blue sub-pixel B, and the third-color sub-pixel 130 is shown as a green sub-pixel G. However, it is not limited thereto, and the colors of the first-color sub-pixel 110 and the second-color sub-pixel 120 can be interchanged.

[0067] In some examples, as Figure 4 shown, at least two different types of spacers 200 include four different types of spacers 200. The four different types of spacers 200 include a first spacer 210, a second spacer 220, a third spacer 230, and a fourth spacer 240.

[0068] For example, as Figure 4As shown in the figure, starting from the sub-pixel 100 located at the lower left corner of each spacer 200, the arrangement order of the sub-pixels 100 around the first spacer 210 is the second color sub-pixel 120, the third color sub-pixel 130, the first color sub-pixel 110, and the third color sub-pixel 130; the arrangement order of the sub-pixels 100 around the second spacer 220 is the third color sub-pixel 130, the second color sub-pixel 120, the third color sub-pixel 130, and the first color sub-pixel 110; the arrangement order of the sub-pixels 100 around the third spacer 230 is the third color sub-pixel 130, the first color sub-pixel 110, the third color sub-pixel 130, and the second color sub-pixel 120; the arrangement order of the sub-pixels 100 around the fourth spacer 240 is the first color sub-pixel 110, the third color sub-pixel 130, the second color sub-pixel 120, and the third color sub-pixel 130. Of course, the embodiments of the present invention are not limited to starting from the sub-pixel 100 located at the lower left corner of each spacer 200, and can also start from the sub-pixel 100 at the upper left corner, upper right corner, or lower right corner of each spacer 200, as long as the relative positional relationship between the sub-pixel 100 at the starting position and various spacers 200 is the same.

[0069] In some examples, as Figure 4 and Figure 5 shown, a plurality of spacers 200 are arranged in an array along a first direction X1 and a second direction Y1, and the first direction X1 and the second direction Y1 intersect. For example, the included angle between the first direction X1 and the second direction Y1 can be 10 to 170 degrees. For example, the included angle between the first direction X1 and the second direction Y1 can be 30 to 150 degrees. For example, the included angle between the first direction X1 and the second direction Y1 can be 60 to 120 degrees. For example, the included angle between the first direction X1 and the second direction Y1 can be 80 to 110 degrees. For example, the included angle between the first direction X1 and the second direction Y1 can be 85 to 105 degrees. For example, the first direction X1 is perpendicular to the second direction Y1. The embodiments of the present invention will not list one by one the included angles between the first direction and the second direction, and the included angle between the first direction and the second direction can be any angle between 10 and 170 degrees. For example, the first direction and the second direction can be interchanged.

[0070] In some examples, as Figure 4 and Figure 5 shown, the centers of the orthographic projections of a plurality of spacers 200 on the substrate 10 are connected into a grid shape, and the shape of the smallest unit U0 of the grid shape is a quadrilateral, and the four vertices of the quadrilateral are the centers of the orthographic projections of four different types of spacers 200 on the substrate 10. For example, four adjacent spacers 200 can be four different types of spacers 200. For example, a plurality of spacers 200 are evenly distributed.

[0071] Setting four spacers 200 adjacent to each other as four different types of spacers 200 is conducive to achieving a uniform distribution of the four different types of spacers 200. Even when the mask plate is misaligned, it can still provide good support for the mask plate.

[0072] For example, as Figure 5 shown, the ratio of the lengths of different sides of the minimum unit U0 is 0.9 to 1.1. For example, the lengths of different sides of the minimum unit U0 are equal. For example, the shape of the minimum unit U0 can be a square. For example, the areas of different minimum units U0 can be equal. For example, the grid includes a plurality of minimum units U0, and the plurality of minimum units U0 are arranged in an array in the first direction and the second direction.

[0073] In some examples, as Figure 4 shown, the first spacer 210 and the third spacer 230 are alternately arranged in the first direction, the second spacer 220 and the fourth spacer 240 are alternately arranged in the first direction, and the first spacer 210 and the second spacer 220 are alternately arranged in the second direction, and the third spacer 230 and the fourth spacer 240 are alternately arranged in the second direction. For example, the four vertices of each minimum unit U0 in the grid correspond to four different types of spacers 200. For example, adjacent minimum units U0 share two spacers 200.

[0074] In some examples, as Figure 4 shown, at least one type of color sub-pixel 100 among the plurality of sub-pixels 100 is arranged in an array in the first arrangement direction X10 and the second arrangement direction Y10, and the first arrangement direction X10 intersects with the second arrangement direction Y10. For example, the included angle between the first arrangement direction X10 and the second arrangement direction Y10 is 10 to 170 degrees. For example, the included angle between the first arrangement direction X10 and the second arrangement direction Y10 can be 30 to 150 degrees. For example, the included angle between the first arrangement direction X10 and the second arrangement direction Y10 can be 60 to 120 degrees. For example, the included angle between the first arrangement direction X10 and the second arrangement direction Y10 can be 80 to 110 degrees. For example, the included angle between the first arrangement direction X10 and the second arrangement direction Y10 can be 85 to 105 degrees. For example, the first arrangement direction X10 is perpendicular to the second arrangement direction Y10. In the embodiments of the present invention, the included angle between the first arrangement direction and the second arrangement direction will not be listed one by one. The included angle between the first arrangement direction and the second arrangement direction can be any angle between 10 and 170 degrees. For example, the first arrangement direction X10 and the second arrangement direction Y10 can be interchanged. For example, one of the first arrangement direction and the second arrangement direction can be the row direction, and the other can be the column direction.

[0075] For example, as Figure 4As shown, at least one of the first color sub-pixels 110 and the second color sub-pixels 120 are arranged in an array along the first arrangement direction X10 and the second arrangement direction Y10. For example, both the first color sub-pixels 110 and the second color sub-pixels 120 are arranged in an array along the first arrangement direction X10 and the second arrangement direction Y10. Thus, the mask openings in the mask used for vapor deposition to form the light-emitting materials of the at least one color sub-pixel 100 are arranged in an array along the first arrangement direction and the second arrangement direction.

[0076] In some examples, as Figure 4 shown, at least two different types of spacers 200 include four different types of spacers 200, and a plurality of spacers 200 are arranged in an array along the first direction X1 and the second direction Y1. The angles between the first direction and the first arrangement direction X10 and the second arrangement direction Y10 are both greater than 0 and less than 90 degrees.

[0077] In some examples, as Figure 4 shown, the angle between the first direction and the first arrangement direction is the first angle, the angle between the second direction and the second arrangement direction is the second angle, and the difference between the first angle and the second angle is not greater than 5 degrees.

[0078] In the display substrate provided by the present utility model, an angle is set between the arrangement direction of the spacers and the arrangement direction of the sub-pixels, which is equivalent to rotating the plurality of spacers as a whole by a certain angle relative to the mask openings in the mask for forming the light-emitting materials of the sub-pixels 100, and adjusting the relative positional relationship between different types of spacers and the mask openings to prevent a large number of spacers from being exposed by the mask openings when the mask is misaligned.

[0079] For example, as Figure 4 shown, the first direction is neither parallel nor perpendicular to the first arrangement direction; the second direction is neither parallel nor perpendicular to the second arrangement direction. For example, the difference between the first angle and the second angle is not greater than 4 degrees. For example, the difference between the first angle and the second angle is not greater than 3 degrees. For example, the difference between the first angle and the second angle is not greater than 2 degrees. For example, the difference between the first angle and the second angle is not greater than 1 degree. For example, the first angle is equal to the second angle.

[0080] Figure 4 The arrangement direction of the spacers 200 shown is rotated by a certain angle relative to Figure 1 the arrangement direction of the spacers shown. Thus, Figure 4 the relative positional relationships between different spacers 200 and the surrounding sub-pixels 100 are different, and are no longer as Figure 1The shown single relative position relationship between different spacers 200 and the sub-pixels 100 surrounding them is such that even if the mask is misaligned relative to the spacer 200, only some types of spacers 200 are exposed by the mask opening, and other types of spacers 200 can still provide good support for the mask, thereby improving the scratching rate of the mask by 90%.

[0081] In some examples, such as Figure 5 shown, at least one color sub-pixel 100 among the multiple sub-pixels 100 is arranged in an array along a first arrangement direction and a second arrangement direction. There are M sub-pixels 100 between two first straight lines L1 passing through the centers of two adjacent different types of spacers 200, and there are N sub-pixels 100 between two second straight lines L2 passing through the centers of the above-mentioned two adjacent different types of spacers 200. The first straight line L1 extends along the first arrangement direction X10, the second straight line L2 extends along the second arrangement direction Y10, the M sub-pixels are arranged along the second arrangement direction, the N sub-pixels are arranged along the first arrangement direction, the sum of M and N is an odd number, and M and N are integers greater than or equal to 0.

[0082] By setting the number of sub-pixels 100 between two adjacent different types of spacers 200, it is beneficial to increase the number of types of spacers 200 as much as possible. Thus, even if the mask is misaligned relative to one type of spacer 200 and exposes that type of spacer 200, other types of spacers 200 can provide good support for the mask.

[0083] For example, Figure 5 schematically shows that the above-mentioned two adjacent different types of spacers 200 include a first spacer 210 and a third spacer 230, but not limited to this. The above-mentioned two adjacent different types of spacers 200 may also include a first spacer 210 and a second spacer 220, or a second spacer 220 and a fourth spacer 240, or a third spacer 230 and a fourth spacer 240. The embodiments of the present invention do not limit this.

[0084] In some examples, such as Figure 4 and Figure 5 shown, both M and N are greater than 1. By setting the number of sub-pixels 100 between two adjacent spacers 200 in both the first direction and the second direction to be greater than 1, it is beneficial to reduce the density of the spacers 200, while reducing the probability of the mask scratching the structure in the display substrate and reducing the number of spacers 200 to reduce the foreign object risk.

[0085] In some examples, such as Figure 5As shown, the sum of M and N is 5. For example, M is 1 and N is 4, or M is 4 and N is 1. For example, one sub-pixel 100 arranged in the second direction is provided between two first straight lines, and four sub-pixels 100 arranged in the first direction are provided between two second straight lines. For example, between two adjacent spacer members 200 of different types, four sub-pixels 100 are provided in one of the first direction and the second direction, and one sub-pixel 100 is provided in the other of the first direction and the second direction.

[0086] For example, relative to Figure 1 the arrangement of the spacer member 200 shown, Figure 4 the spacer member 200 shown is rotated by 14.5 degrees as a whole. For example, it can be rotated clockwise or counterclockwise, thereby adjusting the relative positional relationship between the spacer member and the sub-pixel to increase the types of spacer members.

[0087] For example, when a touch screen panel (TSP) is provided on the light-emitting side of the display substrate provided in the embodiment of the present invention, Figure 4 the arrangement of the spacer member 200 shown can have a good matching effect with the arrangement of the touch lines in the touch screen. Increasing or decreasing the number of sub-pixels 100 provided between the spacer members 200 will affect the touch sensitivity of the touch screen.

[0088] In some examples, as Figure 4 shown, a plurality of sub-pixels 100 of different colors include a first sub-pixel group 1001 and a second sub-pixel group 1002 that are alternately arranged along a first arrangement direction X10. The first sub-pixel group 1001 includes a first color sub-pixel 110 and a third color sub-pixel 130 that are alternately arranged along a second arrangement direction Y10. The second sub-pixel group 1002 includes a second color sub-pixel 120 and a third color sub-pixel 130 that are alternately arranged along the second arrangement direction Y10. The third color sub-pixels 130 located in the first sub-pixel group 1001 are staggeredly distributed from the third color sub-pixels 130 located in the second sub-pixel group 1002 in the second arrangement direction Y10. For example, the third color sub-pixels 130 located in the first sub-pixel group 1001 are staggered by one pixel pitch from the third color sub-pixels 130 located in the second sub-pixel group 1002 in the second arrangement direction Y10.

[0089] For example, as Figure 4As shown, the third color sub-pixels 130 in the first sub-pixel group 1001 are arranged in an array along the first arrangement direction and the second arrangement direction, and the third color sub-pixels 130 in the second sub-pixel group 1002 are arranged in an array along the first arrangement direction and the second arrangement direction. For example, the first color sub-pixels 110 in the first sub-pixel group 1001 and the third color sub-pixels 130 in the second sub-pixel group 1002 are alternately arranged in the first arrangement direction, and the second color sub-pixels 120 in the second sub-pixel group 1002 and the third color sub-pixels 130 in the first sub-pixel group 1001 are alternately arranged in the first arrangement direction.

[0090] Figures 7A to 7F It is a partial planar structure schematic diagram of a display substrate provided according to different examples of the embodiments of the present invention.

[0091] Figure 7A The arrangement of the spacers 200 shown Figure 4 The difference between the arrangement of the spacers 200 shown and the arrangement of the spacers 200 shown lies in the different distribution of the sub-pixels 100 arranged between two adjacent different types of spacers 200.

[0092] For example, as Figure 7A shown, there are M sub-pixels 100 arranged between two first straight lines L1 passing through the centers of two adjacent different types of spacers 200, and there are N sub-pixels 100 arranged between two second straight lines L2 passing through the centers of the above two adjacent different types of spacers 200. The M sub-pixels are arranged along the second arrangement direction, the N sub-pixels are arranged along the first arrangement direction, M is 2 and N is 3, and the sum of M and N is 5. For example, M is 3 and N is 2.

[0093] For example, as Figure 7A shown, the plurality of spacers 200 include four different types of spacers 200, and the four vertices of the smallest unit U0 respectively correspond to the four different types of spacers 200. For example, the four different types of spacers 200 include a first spacer 210, a second spacer 220, a third spacer 230, and a fourth spacer 240.

[0094] Figure 7A The side length of the smallest unit U0 shown is different from Figure 4 the side length of the smallest unit U0 shown, and Figure 7A the first direction X1 shown is different from Figure 4 the first direction X1 shown, Figure 7A the second direction Y1 shown is different from Figure 4 the second direction Y1 shown, Figure 7A the plurality of spacers 200 shown and Figure 4 the plurality of spacers 200 shown are rotated by different overall angles relative to Figure 1 the plurality of spacers 200 shown.

[0095] In the display substrate provided in this example, the spacers 200 are set to include four different types of spacers 200. The relative positional relationships between different types of spacers 200 and the sub-pixels 100 surrounding them are different. Therefore, the relative positional relationships between different types of spacers 200 and the mask openings of the mask are different, which is beneficial to reducing the number of spacers 200 exposed by the mask openings when the mask is offset. For example, only one type of spacer 200 is exposed by the mask opening with a large size, and the other spacers 200 still have a good supporting effect on the mask, so as to improve the supporting effect of the spacers 200 on the mask.

[0096] Figure 7A The pixel arrangement shown is the same as Figure 4 the pixel arrangement shown, which will not be elaborated here.

[0097] Figure 7B The arrangement of the spacers 200 shown is different from Figure 4 the arrangement of the spacers 200 shown in that the distribution of the sub-pixels 100 arranged between two adjacent different types of spacers 200 is different.

[0098] For example, as Figure 7B shown, there are M sub-pixels 100 between two first straight lines passing through the centers of two adjacent different types of spacers 200, and there are N sub-pixels 100 between two second straight lines passing through the centers of the above two adjacent different types of spacers 200. One of M and N is 5, the other of M and N is 0, and the sum of M and N is 5.

[0099] In some examples, as Figure 7B shown, at least two different types of spacers 200 include four different types of spacers 200, and multiple spacers 200 are arranged in an array along a first direction X1 and a second direction Y1. The first direction X1 is substantially parallel to one of a first arrangement direction X10 and a second arrangement direction Y10, and the second direction Y1 is substantially parallel to the other of the first arrangement direction X10 and the second arrangement direction Y10. For example, the first direction is parallel to the first arrangement direction, and the second direction is parallel to the second arrangement direction.

[0100] Relative to Figure 1 the arrangement method of one type of spacer 200 shown, in the display substrate provided in this example, by changing the distance between adjacent spacers 200, the relative positional relationship between the spacers and the sub-pixels is changed, the types of spacers 200 are increased, and thus the supporting effect of the spacers 200 on the mask is improved.

[0101] Relative to Figure 1 the arrangement method of the spacers 200 in the display substrate shown, Figure 7BThe distance between adjacent spacers 200 is increased in the shown display substrate, and the density of the spacers 200 is reduced, which is beneficial to improving foreign matters.

[0102] For example, as Figure 7B shown, multiple spacers 200 include four different types of spacers 200, and the four vertices of the smallest unit in the grid pattern respectively correspond to four different types of spacers 200. For example, the four different types of spacers 200 include a first spacer 210, a second spacer 220, a third spacer 230, and a fourth spacer 240.

[0103] Figure 7B The side length of the smallest unit shown is different from Figure 4 the side length of the smallest unit U0 shown, and Figure 7B the first direction X1 shown is different from Figure 4 the first direction X1 shown, Figure 7B the second direction Y1 shown is different from Figure 4 the second direction Y1 shown.

[0104] Figure 7B The pixel arrangement shown is the same as Figure 4 the pixel arrangement shown, which will not be elaborated here.

[0105] Figure 7C The spacer 200 arrangement shown is different from Figure 4 the spacer 200 arrangement shown in that the distribution of the sub-pixels 100 arranged between two adjacent different types of spacers 200 is different.

[0106] For example, as Figure 7C shown, there are M sub-pixels 100 arranged between two first straight lines passing through the centers of two adjacent different types of spacers 200, and there are N sub-pixels 100 arranged between two second straight lines passing through the centers of the above two adjacent different types of spacers 200. One of M and N is 3, the other of M and N is 0, and the sum of M and N is 3.

[0107] For example, as Figure 7C shown, at least two different types of spacers 200 include four different types of spacers 200. For example, the four different types of spacers 200 include a first spacer 210, a second spacer 220, a third spacer 230, and a fourth spacer 240. For example, multiple spacers 200 are arranged in an array along the first direction X1 and the second direction Y1. The first direction X1 is substantially parallel to one of the first arrangement direction X10 and the second arrangement direction Y10, and the second direction Y1 is substantially parallel to the other of the first arrangement direction X10 and the second arrangement direction Y10. For example, the first direction is parallel to the first arrangement direction, and the second direction is parallel to the second arrangement direction.

[0108] Relative toFigure 1 The arrangement of a type of spacer 200 shown. In the display substrate provided in this example, by changing the distance between adjacent spacers 200, the relative positional relationship between the spacers 200 and the sub-pixels is changed, the types of spacers 200 are increased, and thus the supporting effect of the spacers 200 on the mask is improved.

[0109] Relative to Figure 1 the arrangement of the spacers 200 in the shown display substrate, Figure 7C in the shown display substrate, the distance between adjacent spacers 200 is reduced, the density of the spacers 200 is increased, which is beneficial to improving the supporting effect of the spacers 200 on the mask.

[0110] For example, as Figure 7C shown, a plurality of spacers 200 include four different types of spacers 200, and the four vertices of the smallest unit in the grid shape respectively correspond to four different types of spacers 200.

[0111] Figure 7C The side length of the shown smallest unit is different from Figure 4 the side length of the smallest unit U0 shown, and Figure 7C the first direction X1 shown is different from Figure 4 the first direction X1 shown, Figure 7B the second direction Y1 shown is different from Figure 4 the second direction Y1 shown,

[0112] Figure 7C the pixel arrangement shown is the same as Figure 4 the pixel arrangement shown, which will not be elaborated here.

[0113] Figure 7D The difference between the shown display substrate and Figure 4 the shown display substrate lies in that both the pixel arrangement and the distribution of the sub-pixels 100 arranged between two adjacent different types of spacers 200 are different.

[0114] For example, as Figure 7D shown, a plurality of third color sub-pixels 130 are arranged in an array along the first arrangement direction X10 and the second arrangement direction Y10, a plurality of spacers 200 are arranged in an array along the first direction X1 and the second direction Y1, the first direction is not parallel to the first arrangement direction, the second direction is not parallel to the second arrangement direction, and a plurality of spacers 200 include four different types of spacers 200. For example, the four different types of spacers 200 include a first spacer 210, a second spacer 220, a third spacer 230, and a fourth spacer 240.

[0115] For example, as Figure 7DAs shown, the first color sub-pixels 110 and the second color sub-pixels 120 are alternately arranged along the first arrangement direction and the second arrangement direction. The pixel rows where the first color sub-pixels 110 are located and the pixel rows where the third color sub-pixels 130 are located are alternately arranged in the first arrangement direction and are staggeredly distributed in the second arrangement direction.

[0116] For example, as Figure 7D shown, the first color sub-pixels 110 are red sub-pixels, the second color sub-pixels 120 are blue sub-pixels, and the third color sub-pixels 130 are green sub-pixels. For example, the area of the light-emitting region of the second color sub-pixels 120 is the largest.

[0117] For example, as Figure 7D shown, the same spacer 200 is surrounded by one first color sub-pixel 110, one second color sub-pixel 120, and two third color sub-pixels 130. For example, the directions in which the centers of different types of spacers 200 point to the center of the first color sub-pixel 110 surrounding them are different. For example, the directions in which the centers of different types of spacers 200 point to the center of the second color sub-pixel 120 surrounding them are different.

[0118] For example, as Figure 7D shown, taking the sub-pixels 100 located on the left (right, upper, or lower) side of various types of spacers 200 as the starting sub-pixels, the arrangement orders of the sub-pixels 100 surrounding different types of spacers 200 are different. For example, the sub-pixels 100 surrounding the first spacer 210 include the third color sub-pixels 130, the first color sub-pixels 110, the third color sub-pixels 130, and the second color sub-pixels 120 arranged in sequence; the sub-pixels 100 surrounding the second spacer 220 include the first color sub-pixels 110, the third color sub-pixels 130, the second color sub-pixels 120, and the third color sub-pixels 130 arranged in sequence; the sub-pixels 100 surrounding the third spacer 230 include the second color sub-pixels 120, the third color sub-pixels 130, the first color sub-pixels 110, and the third color sub-pixels 130 arranged in sequence; the sub-pixels 100 surrounding the fourth spacer 240 include the third color sub-pixels 130, the second color sub-pixels 120, the third color sub-pixels 130, and the first color sub-pixels 110 arranged in sequence.

[0119] Figure 7E The display substrate shown is different from the Figure 4 display substrate shown in that both the pixel arrangement and the distribution of the sub-pixels 100 arranged between two adjacent different types of spacers 200 are different.

[0120] For example, as Figure 7EAs shown, each color sub-pixel 100 among the first color sub-pixel 110, the second color sub-pixel 120, and the third color sub-pixel 130 is arranged in an array along the first arrangement direction X10 and the second arrangement direction Y10. A plurality of spacers 200 are arranged in an array along the first direction X1 and the second direction Y1. The first direction is not parallel to the first arrangement direction, and the second direction is not parallel to the second arrangement direction. And the plurality of spacers 200 include four different types of spacers 200.

[0121] For example, as Figure 7E shown, the first color sub-pixel 110 and the second color sub-pixel 120 are alternately arranged along the first arrangement direction and the second arrangement direction. The pixel rows where the first color sub-pixel 110 is located and the pixel rows where the third color sub-pixel 130 is located are alternately arranged in the first arrangement direction.

[0122] For example, as Figure 7E shown, the first color sub-pixel 110 is a red sub-pixel, the second color sub-pixel 120 is a blue sub-pixel, and the third color sub-pixel 130 is a green sub-pixel. For example, the areas of the light-emitting regions of the first color sub-pixel 110 and the second color sub-pixel 120 are both larger than the area of the light-emitting region of the third color sub-pixel 130.

[0123] For example, as Figure 7E shown, the same spacer 200 is surrounded by a first color sub-pixel 110, a second color sub-pixel 120, and two third color sub-pixels 130. For example, the directions in which the centers of different types of spacers 200 point to the center of the first color sub-pixel 110 surrounding them are different. For example, the directions in which the centers of different types of spacers 200 point to the center of the second color sub-pixel 120 surrounding them are different.

[0124] For example, as Figure 7E shown, at least two different types of spacers 200 include four different types of spacers 200. For example, the four different types of spacers 200 include a first spacer 210, a second spacer 220, a third spacer 230, and a fourth spacer 240.

[0125] For example, as Figure 7EAs shown, taking the sub-pixel 100 located on the left side (right side, upper side, or lower side) of various spacers 200 as the starting sub-pixel 100, the arrangement order of the sub-pixels 100 around different types of spacers 200 is different. For example, the sub-pixels 100 around the first spacer 210 include the third color sub-pixels 130, the third color sub-pixels 130, the first color sub-pixels 110, and the second color sub-pixels 120 arranged in sequence; the sub-pixels 100 around the second spacer 220 include the third color sub-pixels 130, the third color sub-pixels 130, the second color sub-pixels 120, and the first color sub-pixels 110 arranged in sequence; the sub-pixels 100 around the third spacer 230 include the first color sub-pixels 110, the second color sub-pixels 120, the third color sub-pixels 130, and the third color sub-pixels 130 arranged in sequence; the sub-pixels 100 around the fourth spacer 240 include the second color sub-pixels 120, the first color sub-pixels 110, the third color sub-pixels 130, and the third color sub-pixels 130 arranged in sequence.

[0126] Figure 7F The display substrate shown and Figure 4 The difference between the display substrate shown and the above is that both the pixel arrangement and the distribution of the sub-pixels 100 arranged between two adjacent different types of spacers 200 are different.

[0127] For example, as Figure 7F shown, each color sub-pixel 100 among the first color sub-pixels 110, the second color sub-pixels 120, and the third color sub-pixels 130 is arranged in an array along the first arrangement direction X10 and the second arrangement direction Y10, and multiple spacers 200 are arranged in an array along the first direction X1 and the second direction Y1. The first direction is not parallel to the first arrangement direction, the second direction is not parallel to the second arrangement direction, and the multiple spacers 200 include three different types of spacers 200. For example, the three different types of spacers 200 include the first spacer 210, the second spacer 220, and the third spacer 230.

[0128] In some examples, as Figure 7F shown, the multiple different color sub-pixels 100 include the first color sub-pixels 110, the second color sub-pixels 120, and the third color sub-pixels 130. The sub-pixels 100 around the same spacer 200 include four sub-pixels 100, and two of the four sub-pixels 100 have one color, and the other two sub-pixels 100 have another color.

[0129] In some examples, as Figure 7F shown, one of the sub-pixels with one color and the sub-pixels with another color is the specific color sub-pixel 101.

[0130] In some examples, asFigure 7F As shown, the sub-pixels 100 around the same spacer 200 include four sub-pixels 100. Two of the four sub-pixels 100 are first sub-pixels 111 that emit light of the same color, and the other two sub-pixels 100 are second sub-pixels 112 that emit light of another color. The first sub-pixels 111 and the second sub-pixels 112 are two different color sub-pixels among the first color sub-pixels 110, the second color sub-pixels 120, and the third color sub-pixels 130.

[0131] In some examples, as Figure 7F shown, one of the first sub-pixels 111 and the second sub-pixels 112 is a specific color sub-pixel 101. Figure 7F It is schematically shown that the first sub-pixel 111 is the specific color sub-pixel 101, but not limited thereto. It is also possible that the second sub-pixel 112 is the specific color sub-pixel 101.

[0132] For example, as Figure 7F shown, the four sub-pixels 100 around the same spacer 200 include two first color sub-pixels 110 and two second color sub-pixels 120, or two first color sub-pixels 110 and two third color sub-pixels 130, or two second color sub-pixels 120 and two third color sub-pixels 130. For example, the four sub-pixels 100 around the first spacer 210 include two first color sub-pixels 110 and two second color sub-pixels 120, and the specific color sub-pixel 101 can be the second color sub-pixel 120; the four sub-pixels 100 around the second spacer 220 include two second color sub-pixels 120 and two third color sub-pixels 130, and the specific color sub-pixel 101 can be the second color sub-pixel 120; the four sub-pixels 100 around the third spacer 230 include two first color sub-pixels 110 and two third color sub-pixels 130. Of course, the embodiments of the present invention are not limited thereto, and the specific color sub-pixel can also be the second color sub-pixel or the third color sub-pixel.

[0133] For example, as Figure 7F shown, the directions from the centers of different types of spacers 200 to the centers of the third color sub-pixels 130 around them are different. For example, the directions from the centers of different types of spacers 200 to the centers of the first color sub-pixels 110 around them are different. For example, the directions from the centers of different types of spacers 200 to the centers of the second color sub-pixels 120 around them are different.

[0134] For example, as Figure 7F shown, taking the sub-pixels 100 on the left (right, upper, or lower) side of various spacers 200 as the starting sub-pixels, the arrangement orders of the sub-pixels 100 around different types of spacers 200 are different.

[0135] For example, as Figure 7F shown, a plurality of sub-pixels 100 include a first sub-pixel row, a second sub-pixel row, and a third sub-pixel row that are sequentially and circularly arranged along a first arrangement direction. The first sub-pixel row includes first color sub-pixels 110 arranged along a second arrangement direction, the second sub-pixel row includes second color sub-pixels 120 arranged along the second arrangement direction, and the third sub-pixel row includes third color sub-pixels 130 arranged along the second arrangement direction. The first color sub-pixels 110, the second color sub-pixels 120, and the third color sub-pixels 130 are sequentially and circularly arranged along the first arrangement direction.

[0136] For example, Figures 7D to 7F schematically shows the included angle between the arrangement directions of the sub-pixels 100. This included angle can be any angle greater than 0 and less than 180 degrees. In the above arrangement directions, the centers of gravity of the sub-pixels 100 may be on a straight line or may not be on a straight line.

[0137] Figures 7A to 7F Only schematically shows different pixel arrangements and different spacer arrangements. The spacer arrangement provided by the present invention is applicable to various pixel arrangements.

[0138] Figure 8 It is a schematic cross-sectional structure diagram of a part of a display substrate according to an embodiment of the present invention. Figure 8 It can be a schematic cross-sectional structure diagram of a part of the display substrate shown in any of the above examples.

[0139] In some examples, as Figure 8 shown, the display substrate further includes a pixel defining pattern 300 located on the substrate 10. The pixel defining pattern 300 includes a plurality of openings 310 and a pixel defining portion 320 surrounding the plurality of openings 310. The plurality of openings 310 are configured to define the light emitting regions 001 of at least some of the plurality of sub-pixels 100. The distance between the surface of the spacer 200 away from the substrate 10 and the substrate 10 is greater than the distance between the surface of the flat portion 321 of the pixel defining portion 320 away from the substrate 10 and the substrate 10. For example, the flat portion 321 of the pixel defining portion 320 refers to the portion between two adjacent openings 310 that has a relatively flat surface, and the spacer 200 is disposed on this flat portion 321.

[0140] For example, as Figure 8 shown, the spacer 200 is located on the side of the pixel defining portion 320 away from the substrate 10. Of course, the embodiment of the present invention is not limited thereto, and the spacer 200 may also be an integrally provided structure with the pixel defining portion 320.

[0141] For example, as Figure 8As shown, the material of the pixel defining portion 320 includes an organic material. For example, the material of the pixel defining portion 320 may include polyimide, acrylic, polyethylene terephthalate, etc.

[0142] In some examples, as Figure 8 shown, at least a part of the sub-pixel 100 includes a light-emitting functional layer 143 and a first electrode 141 and a second electrode 142 located on both sides of the light-emitting functional layer 143 in a direction perpendicular to the substrate 10, and the light-emitting functional layer 143 includes at least two light-emitting layers 1430 arranged in a stacked manner.

[0143] For example, as Figure 8 shown, one sub-pixel 100 corresponds to at least one opening 310, at least a part of the light-emitting functional layer 143 of the sub-pixel 100 is located in the opening 310 corresponding to the sub-pixel 100, and the opening is configured to expose the first electrode 141. For example, one sub-pixel 100 corresponds to one opening 310, and the light-emitting functional layer 143 located in the opening 310 emits light by contacting the first electrode 141 and the second electrode 142.

[0144] For example, as Figure 8 shown, the light-emitting functional layer 143 includes a charge generation layer 1431. For example, the light-emitting functional layer 143 may be the light-emitting functional layer included in an organic light-emitting element. For example, each sub-pixel 100 located in the display area includes a light-emitting element.

[0145] For example, as Figure 8 shown, the light-emitting functional layer 143 may include a first light-emitting layer 1430, a charge generation layer 1431, and a second light-emitting layer 1430 arranged in a stacked manner, and the charge generation layer 1431 is located between the first light-emitting layer 1430 and the second light-emitting layer 1430. The charge generation layer 1431 has strong conductivity, which can make the light-emitting functional layer 143 have the advantages of long life, low power consumption, and high brightness. For example, compared with the light-emitting functional layer 143 without a charge generation layer, the sub-pixel 100 can almost double the light-emitting brightness by setting a charge generation layer in the light-emitting functional layer 143.

[0146] For example, the same sub-pixel 100 may be a tandem structure, such as a Tandem OLED.

[0147] For example, the charge generation layer 1431 may include an N-type charge generation layer and a P-type charge generation layer.

[0148] For example, in each sub-pixel 100, the light-emitting functional layer 143 may further include a hole injection layer (HIL), a hole transport layer (HTL), an electron transport layer (ETL), and an electron injection layer (EIL).

[0149] For example, the hole injection layer, the hole transport layer, the electron transport layer, the electron injection layer, and the charge generation layer are all common film layers for a plurality of sub-pixels 100, and can be referred to as common layers. For example, the above-mentioned common layer and the second electrode 142 can be film layers formed by using an open mask.

[0150] For example, the second light-emitting layer 1430 can be located between the first light-emitting layer 1430 and the second electrode 142, and the hole injection layer can be located between the first electrode 141 and the first light-emitting layer 1430. For example, an electron transport layer can also be provided between the charge generation layer 1431 and the first light-emitting layer 1430. For example, a hole transport layer can be provided between the second light-emitting layer 1430 and the charge generation layer 1431. For example, an electron transport layer and an electron injection layer can be provided between the second light-emitting layer 1430 and the second electrode 142.

[0151] For example, in the same sub-pixel 100, the first light-emitting layer 1430 and the second light-emitting layer 1430 can be light-emitting layers 1430 that emit light of the same color. For example, in the same sub-pixel 100, the first light-emitting layer 1430 and the second light-emitting layer 1430 can be light-emitting layers 1430 that emit light of different colors. By providing light-emitting layers 1430 that emit light of different colors in the same sub-pixel 100, the light emitted by the multiple light-emitting layers 1430 included in the sub-pixel 100 can be mixed into white light, and the color of the light emitted by each sub-pixel 100 can be adjusted by providing a color filter layer.

[0152] For example, as Figure 8 shown, the first electrode 141 can be an anode, and the second electrode 142 can be a cathode. For example, the cathode can be formed of a material with high conductivity and low work function. For example, the cathode can be made of a metal material. For example, the anode can be formed of a transparent conductive material with a high work function.

[0153] For example, as Figure 8 shown, the positive projection of the second electrode 142 on the substrate 10 in at least some of the sub-pixels 100 is a full-surface structure. For example, the second electrode 142 can be a common electrode shared by a plurality of sub-pixels 100.

[0154] For example, as Figure 8 shown, a film layer 11 is provided between the first electrode 141 and the substrate 10. The film layer 11 includes a plurality of insulating layers and conductive layers. The conductive layer includes a pixel circuit electrically connected to the first electrode 141 of the sub-pixel 100, and the conductive layer also includes various signal line structures, etc. The pixel circuit can include a plurality of thin film transistors and at least one capacitor, and the signal lines include data lines, gate lines, etc.

[0155] In the display substrate provided by the present utility model, by setting the light-emitting functional layer to include at least two light-emitting layers, it is beneficial to improve the service life and brightness of the light-emitting device, reduce power consumption, and meet the user's requirements for the service life, power consumption, and good display image quality of the display device applied to the display substrate.

[0156] In the research, the inventors of the present application also found that: for a display substrate with a tandem structure, more mask plates are required during the evaporation of the light-emitting material. For example, if there are multiple problems of scraping between the mask plates and the structure in the display substrate, more bright spots and dark spots will be formed compared to a display substrate without a tandem structure.

[0157] Therefore, by setting the arrangement mode of the spacers in the display substrate, the probability of the appearance of bright spots or dark spots in the display substrate with a tandem structure can be significantly reduced, and the yield of the light-emitting elements in the display substrate, such as organic electroluminescent devices, can be improved, especially the yield of tandem organic electroluminescent devices.

[0158] Another embodiment of the present utility model provides a display panel, including any one of the above display substrates.

[0159] For example, the display panel provided by the embodiment of the present utility model can be an organic light-emitting diode display panel. For example, the display panel can be provided with a color filter layer or can not be provided with a color filter layer.

[0160] Figure 9 It is a schematic block diagram of a display device provided by another embodiment of the present utility model. As Figure 9 shown, a display device provided by an embodiment of the present utility model includes any one of the above display substrates.

[0161] For example, the display substrate provided by the embodiment of the present utility model can be an organic light-emitting diode display substrate. For example, the display substrate can be provided with a color filter layer or can not be provided with a color filter layer.

[0162] For example, the display device further includes a cover plate on the light-emitting side of the display substrate.

[0163] For example, the display device can be display devices such as organic light-emitting diode display devices and any products or components with a display function including the display device, such as televisions, digital cameras, mobile phones, watches, tablet computers, notebook computers, navigators, etc. This embodiment is not limited thereto.

[0164] The following points need to be explained:

[0165] (1) In the accompanying drawings of the embodiments of the present utility model, only the structures related to the embodiments of the present utility model are involved, and other structures can refer to the general design.

[0166] (2) Under the condition of no conflict, the features in the same embodiment and different embodiments of the present utility model can be combined with each other.

[0167] The above description is only an exemplary embodiment of the present utility model and is not used to limit the protection scope of the present utility model. The protection scope of the present utility model is determined by the appended claims.

Claims

1. A display substrate, characterized in that, Comprising: A substrate; A plurality of sub-pixels located on the substrate, the plurality of sub-pixels including a plurality of sub-pixels of different colors; A plurality of spacers located on the substrate, Wherein, the plurality of spacers include at least two different types of spacers, and the orthographic projections of at least some of the spacers of each type on the substrate are surrounded by the orthographic projections of the light-emitting regions of at least two different color sub-pixels on the substrate. The at least two different color sub-pixels include a specific color sub-pixel, and the directions of the orthographic projection centers of different types of spacers pointing to the orthographic projection center of the light-emitting region of the specific color sub-pixel surrounding them are different.

2. The display substrate according to claim 1, wherein The arrangement order of the sub-pixels surrounding different types of spacers is different in the same direction, and the same direction includes one of the clockwise direction and the counterclockwise direction.

3. The display substrate according to claim 1, wherein The at least two different color sub-pixels surrounding the same spacer include four sub-pixels, and among the four sub-pixels, the number of the specific color sub-pixels is one.

4. The display substrate according to claim 1, wherein The at least two different types of spacers include four different types of spacers, and the plurality of spacers are arranged in an array along a first direction and a second direction, and the first direction intersects with the second direction; The centers of the orthographic projections of the plurality of spacers on the substrate are connected to form a grid shape, and the shape of the smallest unit of the grid is a quadrilateral, and the four vertices of the quadrilateral are the centers of the orthographic projections of the four different types of spacers on the substrate.

5. The display substrate according to claim 1, wherein At least one color sub-pixels among the plurality of sub-pixels are arranged in an array along a first arrangement direction and a second arrangement direction, and the first arrangement direction intersects with the second arrangement direction; There are M sub-pixels arranged between two first straight lines passing through the centers of two adjacent different types of spacers, and there are N sub-pixels arranged between two second straight lines passing through the centers of the two adjacent different types of spacers. The first straight line extends along the first arrangement direction, the second straight line extends along the second arrangement direction, the M sub-pixels are arranged along the second arrangement direction, the N sub-pixels are arranged along the first arrangement direction, the sum of M and N is an odd number, and M and N are integers greater than or equal to 0.

6. The display substrate according to claim 5, wherein The at least two different types of spacers include four different types of spacers, and the plurality of spacers are arranged in an array along a first direction and a second direction, and the first direction intersects with the second direction; The angles between the first direction and the first arrangement direction and the second arrangement direction are both greater than 0 and less than 90 degrees.

7. The display substrate according to claim 6, wherein The angle between the first direction and the first arrangement direction is a first angle, the angle between the second direction and the second arrangement direction is a second angle, and the difference between the first angle and the second angle is not greater than 5 degrees.

8. The display substrate according to claim 5, wherein The at least two different types of spacers include four different types of spacers, and the plurality of spacers are arranged in an array along a first direction and a second direction, and the first direction intersects with the second direction; The first direction is substantially parallel to one of the first arrangement direction and the second arrangement direction, and the second direction is substantially parallel to the other of the first arrangement direction and the second arrangement direction.

9. The display substrate according to claim 4, wherein The four different types of spacers include a first spacer, a second spacer, a third spacer, and a fourth spacer. The first spacer and the third spacer are alternately arranged along the first direction, the second spacer and the fourth spacer are alternately arranged along the first direction, and the first spacer and the second spacer are alternately arranged along the second direction, and the third spacer and the fourth spacer are alternately arranged along the second direction.

10. The display substrate according to claim 1, wherein The multiple different color sub-pixels include a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel. The sub-pixels surrounding the same spacer include one first color sub-pixel, one second color sub-pixel, and two third color sub-pixels.

11. The display substrate according to claim 10, wherein One of the first color sub-pixel and the second color sub-pixel is the specific color sub-pixel.

12. The display substrate according to claim 1, wherein The multiple different color sub-pixels include a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel. The sub-pixels surrounding the same spacer include four sub-pixels. Two of the four sub-pixels are first sub-pixels that emit the same color light, and the other two sub-pixels are second sub-pixels that emit another color light. The first sub-pixels and the second sub-pixels are two different color sub-pixels among the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel.

13. The display substrate according to claim 12, wherein One of the first sub-pixel and the second sub-pixel is the specific color sub-pixel.

14. The display substrate according to claim 5, wherein, Both M and N are greater than 1.

15. The display substrate according to claim 10, wherein The multiple different color sub-pixels include a first sub-pixel group and a second sub-pixel group that are alternately arranged along the first direction. The first sub-pixel group includes the first color sub-pixel and the third color sub-pixel that are alternately arranged along the second direction. The second sub-pixel group includes the second color sub-pixel and the third color sub-pixel that are alternately arranged along the second direction. The third color sub-pixels located in the first sub-pixel group and the third color sub-pixels located in the second sub-pixel group are staggeredly distributed in the second direction; The first direction intersects the second direction.

16. The display substrate according to any one of claims 1-15, characterized in that, Further comprising: A pixel defining pattern, located on the substrate substrate, wherein the pixel defining pattern includes a plurality of openings and a pixel defining portion surrounding the plurality of openings. The plurality of openings are configured to define the light emitting regions of at least some of the plurality of sub-pixels. The distance between the surface of the spacer away from the substrate substrate and the substrate substrate is greater than the distance between the surface of the flat portion of the pixel defining portion away from the substrate substrate and the substrate substrate.

17. The display substrate according to any one of claims 1-15, characterized in that, At least some of the sub-pixels include a light emitting functional layer and a first electrode and a second electrode located on both sides of the light emitting functional layer in a direction perpendicular to the substrate substrate. The light emitting functional layer includes at least two stacked light emitting layers.

18. The display substrate according to claim 5, wherein, The sum of M and N is 3 or 5.

19. A display panel, characterized in that, Comprising the display substrate according to any one of claims 1-18.

20. A display device, characterized in that, Comprising the display substrate according to any one of claims 1-18.

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