Display substrate, display panel and display device

Abstract

The invention 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] This disclosure relates to a display substrate, a display panel, and a display device. Background Technology

[0002] Organic light-emitting diode (OLED) displays are widely used in the electronics industry due to their numerous advantages, such as low power consumption, fast response, wide viewing angle, and good flexibility. Currently, red, green, and blue light-emitting materials in OLED devices are deposited into the corresponding pixel openings using a fine metal mask (FMM). During the deposition process, panel spacers (PS) are provided on the substrate side to support the mask. Summary of the Invention

[0003] This disclosure provides a display substrate, a display panel, and a display device.

[0004] This disclosure 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, and at least a portion of each type of spacer has its orthographic projection on the substrate surrounded by the orthographic projection of the light-emitting area of ​​the at least two different colors of sub-pixels on the substrate. The at least two different colors of sub-pixels include a specific color sub-pixel, and the orthographic projection centers of the different types of spacers point in different directions to the orthographic projection centers of the light-emitting areas of the specific color sub-pixels surrounding them.

[0005] For example, according to embodiments of this disclosure, the subpixels surrounding different types of spacers are arranged in different orders in the same direction, the same direction including one of clockwise and counterclockwise directions.

[0006] For example, according to an embodiment of this disclosure, the at least two different color subpixels surrounding the same spacer include four subpixels, of which the number of the specific color subpixels is one.

[0007] For example, according to an embodiment of this disclosure, 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, the first direction intersecting the second direction; the centers of the orthographic projections of the plurality of spacers on the substrate are connected to form a grid, 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.

[0008] For example, according to an embodiment of this disclosure, at least one color sub-pixel among the plurality of sub-pixels is arranged in an array along a first arrangement direction and a second arrangement direction, the first arrangement direction intersecting the second arrangement direction; M sub-pixels are arranged between two first straight lines passing through the centers of two adjacent different types of spacers, and N sub-pixels are arranged between two second straight lines passing through the centers of the two adjacent different types of spacers, the first straight lines extending along the first arrangement direction, the second straight lines extending along the second arrangement direction, the M sub-pixels arranged along the second arrangement direction, the N sub-pixels arranged along the first arrangement direction, the sum of M and N being an odd number, and M and N being integers greater than or equal to 0.

[0009] For example, according to an embodiment of this disclosure, 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, wherein the first direction intersects the second direction; the angle between the first direction and the first arrangement direction and the second arrangement direction is greater than 0 and less than 90 degrees.

[0010] For example, according to an embodiment of this disclosure, 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 no greater than 5 degrees.

[0011] For example, according to an embodiment of this disclosure, 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, wherein the first direction intersects 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 this disclosure, 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 this disclosure, the plurality of different color sub-pixels include a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel, and the sub-pixels surrounding the same spacer include a first color sub-pixel, a second color sub-pixel, and two third color sub-pixels.

[0014] For example, according to an embodiment of this disclosure, one of the first color sub-pixel and the second color sub-pixel is the specific color sub-pixel.

[0015] For example, according to an embodiment of this disclosure, the plurality of 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 of light, and the other two sub-pixels are second sub-pixels that emit a different color of light. The first sub-pixel and the second sub-pixel 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 this disclosure, one of the first sub-pixel and the second sub-pixel is the specific color sub-pixel.

[0017] For example, according to an embodiment of this disclosure, both M and N are greater than 1.

[0018] For example, according to an embodiment of this disclosure, the plurality of different color sub-pixels include a first sub-pixel group and a second sub-pixel group arranged alternately along a first direction. The first sub-pixel group includes the first color sub-pixels and the third color sub-pixels arranged alternately along a second direction. The second sub-pixel group includes the second color sub-pixels and the third color sub-pixels arranged alternately 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 staggered in the second direction. The first direction intersects the second direction.

[0019] For example, according to an embodiment of this disclosure, the display substrate further includes a pixel defining pattern located on the substrate. The pixel defining pattern includes a plurality of openings and pixel defining portions surrounding the plurality of openings, the plurality of openings being configured to define light-emitting areas of at least a portion 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 flat portion of the pixel defining portion away from the substrate and the substrate.

[0020] For example, according to an embodiment of this disclosure, at least some 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, wherein the light-emitting functional layer includes at least two light-emitting layers stacked together.

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

[0022] Another embodiment of this disclosure provides a display panel including any of the above-described display substrates.

[0023] Another embodiment of this disclosure provides a display device including any of the above-described display substrates. Attached Figure Description

[0024] 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.

[0025] Figure 1 This is a schematic diagram of pixel arrangement and spacer arrangement.

[0026] Figure 2 For normal formation Figure 1 A schematic diagram showing the blue sub-pixel in the pixel arrangement being supported by spacers.

[0027] Figure 3 To form Figure 1 The diagram shows the blue sub-pixel's mask template misaligned relative to the spacer.

[0028] Figure 4 This is a partial planar structure schematic diagram of a display substrate provided according to an example of an embodiment of the present disclosure.

[0029] Figure 5 for Figure 4 The image shown is a partial enlarged view of the display substrate.

[0030] Figure 6 for Figure 4 The diagram shows the layering relationship when the spacer supports the mask template.

[0031] Figures 7A to 7F This is a partial planar structure schematic diagram of a display substrate provided according to different examples of embodiments of the present disclosure.

[0032] Figure 8 This is a partial cross-sectional structural diagram of a display substrate provided according to an embodiment of the present disclosure.

[0033] Figure 9 This is a schematic block diagram of a display device provided according to another embodiment of the present disclosure. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. Based on the described embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0035] 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.

[0036] The features such as “parallel,” “perpendicular,” and “identical” used in at least one embodiment of this disclosure include the strictly defined meanings of “parallel,” “perpendicular,” and “identical,” as well as cases where “approximately parallel,” “approximately perpendicular,” and “approximately identical” include a certain degree of error, taking into account measurement and errors associated with the measurement of a specific quantity (e.g., limitations of the measurement system), and represent the acceptable deviation range for a specific value as determined by a person skilled in the art. For example, “approximately” can mean within one or more standard deviations, or within 10% or 5% of said value. Unless otherwise specified in the embodiments of this disclosure, the quantity of a component is implied to mean that the component may be one or more, or can be understood as at least one. “At least one” means one or more, and “more” means at least two. “Integral structure” in this disclosure refers to a structure formed by two (or more) structures through the same deposition process and patterned through the same patterning process, and whose materials may be the same or different.

[0037] Figure 1 This is a schematic diagram of pixel arrangement and spacer arrangement. Figure 2 For normal formation Figure 1 A schematic diagram showing the blue sub-pixel in the pixel arrangement being supported by spacers. Figure 3 To form Figure 1 The diagram shows the blue sub-pixel's mask template misaligned relative to the spacer.

[0038] like Figure 1 As shown, a pixel arrangement includes multiple sub-pixels of different colors, such as multiple red sub-pixels R, multiple blue sub-pixels B, and multiple green sub-pixels G. For example, the multiple blue sub-pixels are arranged in an array along the X and Y directions. For example, the multiple red sub-pixels are arranged in an array along the X and Y directions.

[0039] like Figure 1As shown, multiple spacers 012 are uniformly distributed. For example, the multiple spacers 012 are arranged in an array along directions X and Y. For example, four sub-pixels 011 are disposed between two adjacent spacers 012 arranged along at least one of directions X and Y. For example, each spacer 012 is surrounded by four sub-pixels 011, such as a red sub-pixel R, a blue sub-pixel B, and two green sub-pixels G, and the center of each spacer 012 points in the same direction to the center of the blue sub-pixel B surrounding it. For example, based on the relative positional relationship between the spacer 012 and the surrounding sub-pixels 011, each spacer 012 has the same relative positional relationship with the surrounding sub-pixels 011, thus the multiple spacers 012 include only one type of spacer 012.

[0040] like Figure 2 The fine metal mask 013 shown includes multiple mask openings 014. The multiple mask openings 014 can be masks for depositing the light-emitting material of the blue sub-pixel B, or masks for depositing the light-emitting material of the red sub-pixel R. Figure 2 The mask 013 is schematically shown as a vapor deposition template. Figure 1 The mask template for the blue sub-pixel B shown.

[0041] like Figure 2 As shown, during ideal vapor deposition, the mask opening 014 of the mask 013 exposes only the pixel opening corresponding to the blue sub-pixel for vapor deposition of the blue emitting material, while the mask portion between adjacent mask openings 014 covers the pixel openings of the red and green sub-pixels, as well as the spacer 012. For example, the spacer 012 contacts the mask portion supporting the mask 013 to serve as a support for the mask 013.

[0042] During the research, the inventors of this application discovered that: Figure 3 As shown, during actual evaporation, the mask 013 may shift within a certain range, such as within half the size of the pixel defined gap (PDL GAP). In this case, the opening 014 of the mask 013 exposes most of the spacer 012. Since the spacer 012 only includes one type of spacer 012, the size of each spacer 012 exposed by the opening 014 of the mask 013 is quite similar. The mask 013 cannot cover a large area of ​​the spacer 012, and the supporting effect of the spacer 012 on the mask 013 is severely weakened. This may cause the mask 013 to scratch the light-emitting material in the pixel opening, forming bright spots or dark spots and reducing the yield of the display substrate.

[0043] This disclosure provides a display substrate, a display panel, and a display device. The display substrate includes a substrate base and a plurality of sub-pixels and a plurality of spacers located on the substrate base. 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, and at least a portion of each type of spacer has its orthographic projection on the substrate base surrounded by the orthographic projection of the light-emitting areas of the at least two different types of sub-pixels on the substrate base. The at least two different types of sub-pixels include a specific color sub-pixel, and the orthographic projection centers of the different types of spacers point in different directions to the orthographic projection centers of the light-emitting areas of the specific color sub-pixels surrounding them.

[0044] By setting multiple spacers to include at least two different types of spacers, and the relative positional relationship between the different types of spacers and the sub-pixels surrounding them, it is beneficial to improve the support effect of the spacers on the photomask, reduce the probability of the photomask scratching the structure in the display substrate, and thus improve the yield of the display substrate.

[0045] The display substrate, display panel, and display device provided in the embodiments of this disclosure are described below with reference to the accompanying drawings.

[0046] Figure 4 This is a partial planar structure schematic diagram of a display substrate provided according to an example of an embodiment of the present disclosure. Figure 5 for Figure 4 The image shown is a partial enlarged view of the display substrate.

[0047] like Figure 4 and Figure 5 As shown, 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 of different colors 100, and the plurality of spacers 200 include at least two different types of spacers 200. The orthographic projection of at least a portion of each type of spacer 200 onto the substrate 10 is surrounded by the orthographic projection of the light-emitting areas of the at least two different colors of the sub-pixels 100 onto the substrate 10. The at least two different colors of the sub-pixels 100 include a specific color sub-pixel 101, and the orthographic projection centers of the different types of spacers 200 point in different directions to the orthographic projection centers of the light-emitting areas of the specific color sub-pixels 101 surrounding them.

[0048] By setting multiple spacers to include at least two different types of spacers, and the relative positional relationship between the different types of spacers and the sub-pixels surrounding them, it is beneficial to improve the support effect of the spacers on the photomask, reduce the probability of the photomask scratching the structure in the display substrate, and thus improve the yield of the display substrate.

[0049] Figure 4Schematably, each sub-pixel 100 is represented as a square, and the light-emitting area of ​​sub-pixel 100 can be the area within the square. For example, the spacer can also be called a panel pad. For example, the orthographic projection of the spacer 200 located in the non-edge area onto the substrate 10 is surrounded by the orthographic projections of the light-emitting areas of at least two different colors of sub-pixels 100 onto the substrate 10, such as when the number of sub-pixels 100 adjacent to the spacer 200 in the non-edge area is four; only part of the edge of the orthographic projection of the spacer 200 located in the edge area onto the substrate 10 is surrounded by the orthographic projection of the sub-pixels 100, such as when the number of sub-pixels 100 adjacent to the spacer 200 in the edge area is less than four, such as one or two.

[0050] The sub-pixel 100 surrounding each type of spacer 200 can refer to a sub-pixel 100 that is not disposed between itself and the spacer 200. For example, the line connecting the geometric center of the orthographic projection of the light-emitting area of ​​the sub-pixel 100 surrounding the spacer 200 onto the substrate 10 and the geometric center of the orthographic projection of the spacer 200 onto the substrate 10 does not pass through the orthographic projection of the light-emitting area of ​​any other sub-pixel 100 onto the substrate 10.

[0051] The number of specific color subpixels 101 surrounding the same spacer 200 can be one, but is not limited to one; for example, it can be two. For instance, when selecting specific color subpixels 101, it is preferable to select only one subpixel 100.

[0052] The orthographic 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 center of the light-emitting area refers to the geometric center of the orthographic projection of the light-emitting area on the substrate 10.

[0053] The statement that "the orthographic projection center of different types of spacers 200 points in different directions to the orthographic projection center of the light-emitting area of ​​the specific color sub-pixel 101 surrounding them" indicates that the relative positional relationship between the spacers 200 and the sub-pixels 100 surrounding them is different. As a result, the relative positional relationship between the different types of spacers and the mask opening of the mask template is different. When the mask template shifts during the actual vapor deposition process, the amount of shift of its mask opening relative to the different types of spacers is different. If the mask opening shifts, only one type of spacer is exposed, which is beneficial to reduce the number of spacers exposed by the mask opening.

[0054] For example, in this embodiment of the disclosure, the shapes and sizes of different types of spacers 200 may be the same or different.

[0055] For example, such as Figure 4As 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, 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., are not limited in this embodiment.

[0056] Figure 6 for Figure 4 The diagram shows the layering relationship when the spacer supports the mask template.

[0057] This publicly provided Figure 4 The pixel arrangement shown can be compared with Figure 1 The pixel arrangement shown is the same, but relative to Figure 1 The display substrate shown includes only one type of spacer 200. The display substrate provided in this disclosure has at least two different types of spacers 200, such as... Figure 6 As shown, during the process of vapor deposition of luminescent material, when the mask 400 supported by the spacer 200 shifts, only one type of spacer 200, such as the first spacer 210, will be excessively exposed by the mask opening 410 of the mask 400, while other types of spacers 200, such as the second spacer 220, will still provide good support for the mask 400, thereby improving the support effect of the spacer 200 on the mask 400.

[0058] 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 orthographic projection center of the four different types of spacers 200 points to the orthographic projection center of the light-emitting area surrounding the specific color sub-pixel 101 can be pointing directions D1, D2, D3, and D4, respectively, and any one of the pointing directions D1, D2, D3, and D4 is different from the other three.

[0059] In some examples, such as Figure 4 and Figure 5As shown, the sub-pixels 100 surrounding different types of spacers 200 are arranged in different orders along the same direction D0, which includes either a clockwise or counterclockwise direction. The starting points of these arrangements are all in the same relative position to the different types of spacers 200. For example, the sub-pixels 100 at the starting point of these arrangements surrounding the different types of spacers may be sub-pixels of the same color or sub-pixels of different colors.

[0060] The arrangement order of the sub-pixels 100 surrounding the different types of spacers 200 reflects the different relative positional relationships between the different types of spacers 200 and the sub-pixels 100 surrounding them. As a result, the different relative positional relationships between the different types of spacers 200 and the mask opening of the mask template are beneficial to reduce the number of spacers 200 exposed by the mask opening when the mask template is offset. For example, if only one type of spacer 200 is exposed to a large size by the mask opening, the other spacers 200 still have a good supporting effect on the mask template, thereby improving the supporting role of the spacers 200 on the mask template.

[0061] In some examples, such as Figure 4 As shown, at least two different colored sub-pixels 100 surrounding the same spacer 200 include four sub-pixels 100, of which one is a specific color sub-pixel 101. Therefore, by selecting the specific color sub-pixel 101, the positions of different types of spacers 200 can be determined more precisely.

[0062] In some examples, such as Figure 4 As shown, multiple sub-pixels of different colors 100 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 surrounding the same spacer 200 is four, and 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.

[0063] In some examples, such as Figure 4 As shown, one of the first color sub-pixel 110 and the second color sub-pixel 120 is a specific color sub-pixel 101.

[0064] When the number of sub-pixels 100 with the same color surrounding the same spacer 200 includes both one and multiple sub-pixels, such as including one blue sub-pixel and two green sub-pixels, the sub-pixel 100 with the same color having one sub-pixel, such as the blue sub-pixel, is designated as a specific color sub-pixel 101. This is beneficial for more accurately and quickly determining the position of different types of spacers 200.

[0065] For example, such as Figure 4As 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 The diagram schematically shows that the first color sub-pixel 110 is the red sub-pixel R, the second color sub-pixel 120 is the blue sub-pixel B, and the third color sub-pixel 130 is the green sub-pixel G. However, it is not limited to this; the colors of the first color sub-pixel 110 and the second color sub-pixel 120 can be interchanged.

[0066] In some examples, such as Figure 4 As shown, at least two different types of spacers 200 include four different types of spacers 200, which include a first spacer 210, a second spacer 220, a third spacer 230, and a fourth spacer 240.

[0067] For example, such as Figure 4 As shown, 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; and 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 disclosed herein are not limited to starting from the sub-pixel 100 located at the lower left corner of each spacer 200. They can also start from the sub-pixel 100 at the upper left, upper right, 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 the various types of spacers 200 is the same.

[0068] In some examples, such as Figure 4 and Figure 5As shown, multiple spacers 200 are arranged in an array along a first direction X1 and a second direction Y1, where the first direction X1 and the second direction Y1 intersect. For example, the angle between the first direction X1 and the second direction Y1 can be 10 to 170 degrees. For example, the angle between the first direction X1 and the second direction Y1 can be 30 to 150 degrees. For example, the angle between the first direction X1 and the second direction Y1 can be 60 to 120 degrees. For example, the angle between the first direction X1 and the second direction Y1 can be 80 to 110 degrees. For example, the angle between the first direction X1 and the second direction Y1 can be 85 to 105 degrees. For example, the first direction X1 may be perpendicular to the second direction Y1. This embodiment of the present disclosure does not list all the angles between the first and second directions; the angle between the first and second directions can be any angle between 10 and 170 degrees. For example, the first and second directions can be interchanged.

[0069] In some examples, such as Figure 4 and Figure 5 As shown, the centers of the orthographic projections of multiple spacers 200 onto the substrate 10 are connected to form a grid. The smallest unit U0 of the grid is a quadrilateral, and the four vertices of the quadrilateral are the centers of the orthographic projections of four different types of spacers 200 onto the substrate 10. For example, four adjacent spacers 200 can be four different types of spacers 200. For example, the multiple spacers 200 are evenly distributed.

[0070] Setting the four adjacent spacers 200 as four different types of spacers 200 is beneficial to achieving a uniform distribution of the four different types of spacers 200, and can still provide good support for the mask template even if the mask template is misaligned.

[0071] For example, such as Figure 5 As 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 all 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 multiple minimum units U0, and the multiple minimum units U0 are arranged in an array along a first direction and a second direction.

[0072] In some examples, such as Figure 4 As shown, the first spacer 210 and the third spacer 230 are alternately arranged along a first direction, and the second spacer 220 and the fourth spacer 240 are alternately arranged along the first direction. Furthermore, the first spacer 210 and the second spacer 220 are alternately arranged along a second direction, and the third spacer 230 and the fourth spacer 240 are alternately arranged along the second direction. For example, each smallest unit U0 in the grid has four vertices corresponding to four different types of spacers 200. For example, adjacent smallest units U0 share two spacers 200.

[0073] In some examples, such as Figure 4 As shown, at least one color sub-pixel 100 among a plurality of sub-pixels 100 is arranged in an array along a first arrangement direction X10 and a second arrangement direction Y10, the first arrangement direction X10 and the second arrangement direction Y10 intersecting. For example, the angle between the first arrangement direction X10 and the second arrangement direction Y10 is 10 to 170 degrees, for example, the angle between the first arrangement direction X10 and the second arrangement direction Y10 can be 30 to 150 degrees, for example, the angle between the first arrangement direction X10 and the second arrangement direction Y10 can be 60 to 120 degrees, for example, the angle between the first arrangement direction X10 and the second arrangement direction Y10 can be 80 to 110 degrees, for example, the 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 and the second arrangement direction Y10 are perpendicular. This embodiment of the present disclosure will not list all the angles between the first and second arrangement directions; the angle between the first and second arrangement directions 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 a row direction, and the other can be a column direction.

[0074] For example, such as Figure 4 As shown, at least one of the first color sub-pixel 110 and the second color sub-pixel 120 is arranged in an array along a first arrangement direction X10 and a second arrangement direction Y10. For example, both the first color sub-pixel 110 and the second color sub-pixel 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 for evaporating the light-emitting material to form the above-mentioned at least one color sub-pixel 100 are arranged in an array along the first arrangement direction and the second arrangement direction.

[0075] In some examples, such as Figure 4 As 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 angle between the first direction and the first arrangement direction X10 and the second arrangement direction Y10 is greater than 0 and less than 90 degrees.

[0076] In some examples, such as Figure 4 As shown, the angle between the first direction and the first arrangement direction is the first angle, and the angle between the second direction and the second arrangement direction is the second angle. The difference between the first angle and the second angle is no greater than 5 degrees.

[0077] In the display substrate provided in this disclosure, the arrangement direction of the spacers and the arrangement direction of the sub-pixels are set to have a certain angle. This is equivalent to rotating the multiple spacers as a whole relative to the mask opening in the photomask of the light-emitting material used to form the sub-pixel 100 by a certain angle, thereby adjusting the relative positional relationship between different types of spacers and the mask opening, so as to prevent the mask opening from exposing more spacers when the photomask is misaligned.

[0078] For example, such as Figure 4 As 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 and second included angles is no greater than 4 degrees. For example, the difference between the first and second included angles is no greater than 3 degrees. For example, the difference between the first and second included angles is no greater than 2 degrees. For example, the difference between the first and second included angles is no greater than 1 degree. For example, the first and second included angles are equal.

[0079] Figure 4 The arrangement direction of the spacers 200 shown is relative to Figure 1 The arrangement of the spacers shown has been rotated by a certain angle, therefore... Figure 4 The relative positional relationship between the different spacers 200 and the surrounding sub-pixels 100 is different, and is no longer as shown. Figure 1 The diagram shows the unique relative positional relationship between different spacers 200 and the surrounding sub-pixels 100. Thus, even if the mask template is misaligned relative to the spacers 200, only some types of spacers 200 are exposed by the mask template opening, while other types of spacers 200 can still provide good support for the mask template, thereby improving the mask template scratch rate by 90%.

[0080] In some examples, such as Figure 5 As shown, at least one color sub-pixel 100 among a plurality of sub-pixels 100 is arranged in an array along a first arrangement direction and a second arrangement direction. M sub-pixels 100 are arranged between two first straight lines L1 passing through the center of two adjacent different types of spacers 200, and N sub-pixels 100 are arranged between two second straight lines L2 passing through the center of the aforementioned two adjacent different types of spacers 200. The first straight line L1 extends along the first arrangement direction X10, and the second straight line L2 extends along the second arrangement direction Y10. M sub-pixels are arranged along the second arrangement direction, and 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.

[0081] By setting the number of sub-pixels 100 between two adjacent spacers of different types 200, it is beneficial to increase the number of spacer types 200 as much as possible. Thus, even if the mask is misaligned with a certain type of spacer 200 and exposes that type of spacer 200, other types of spacers 200 can provide better support for the mask.

[0082] For example, Figure 5 The above-mentioned two adjacent different types of spacers 200 are schematically shown to include a first spacer 210 and a third spacer 230, but are not limited thereto. 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 disclosed herein do not limit this.

[0083] In some examples, such as Figure 4 and Figure 5 As shown, both M and N are greater than 1. By setting the number of sub-pixels 100 between two adjacent spacers 200 in the first and second directions to be greater than 1, it is beneficial to reduce the density of spacers 200. This reduces the probability of the mask causing scratches to the structure in the display substrate, while also reducing the number of spacers 200 to reduce the risk of foreign objects.

[0084] In some examples, such as Figure 5 As 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, a sub-pixel 100 arranged along the second direction is provided between two first straight lines, and four sub-pixels 100 arranged along the first direction are provided between two second straight lines. For example, between two adjacent spacers of different types 200, four sub-pixels 100 are provided in one of the first and second directions, and one sub-pixel 100 is provided in the other of the first and second directions.

[0085] For example, relative to Figure 1 The method of setting the spacer 200 shown is as follows: Figure 4 The spacer 200 shown is rotated 14.5 degrees as a whole. It can be rotated clockwise or counterclockwise, thereby adjusting the relative positional relationship between the spacer and the sub-pixel to increase the types of spacers.

[0086] For example, when a touch screen panel (TSP) is provided on the light-emitting side of the display substrate provided in the embodiments of this disclosure, Figure 4 The arrangement of the spacers 200 shown can be well matched with the arrangement of the touch lines in the touch screen. Increasing or decreasing the number of sub-pixels 100 between the spacers 200 will affect the touch sensitivity of the touch screen.

[0087] In some examples, such as Figure 4As shown, multiple sub-pixels of different colors 100 include a first sub-pixel group 1001 and a second sub-pixel group 1002 arranged alternately 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 arranged alternately 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 arranged alternately along the second arrangement direction Y10. The third-color sub-pixel 130 in the first sub-pixel group 1001 and the third-color sub-pixel 130 in the second sub-pixel group 1002 are staggered in the second arrangement direction Y10. For example, the third-color sub-pixel 130 in the first sub-pixel group 1001 and the third-color sub-pixel 130 in the second sub-pixel group 1002 are staggered by one pixel pitch in the second arrangement direction Y10.

[0088] For example, such as Figure 4 As shown, the third color sub-pixels 130 in the first sub-pixel group 1001 are arranged in an array along the first and second arrangement directions, and the third color sub-pixels 130 in the second sub-pixel group 1002 are also arranged in an array along the first and second arrangement directions. 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.

[0089] Figures 7A to 7F This is a partial planar structure schematic diagram of a display substrate provided according to different examples of embodiments of the present disclosure.

[0090] Figure 7A The arrangement of the spacers 200 shown is similar to Figure 4 The difference in the arrangement of the spacers 200 shown is that the distribution of sub-pixels 100 between two adjacent spacers of different types 200 is different.

[0091] For example, such as Figure 7A As shown, M sub-pixels 100 are arranged between two first straight lines L1 passing through the centers of two adjacent different types of spacers 200, and N sub-pixels 100 are arranged between two second straight lines L2 passing through the centers of the aforementioned two adjacent different types of spacers 200. The M sub-pixels are arranged along the second arrangement direction, and 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.

[0092] For example, such as Figure 7AAs shown, the plurality of spacers 200 include four different types of spacers 200, and the four vertices of the smallest unit U0 correspond to the four different types of spacers 200 respectively. 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.

[0093] Figure 7A The side length of the smallest unit U0 shown is different from that of the smallest unit U0 shown. Figure 4 The side length of the smallest unit U0 shown is given, and Figure 7A The first direction X1 shown is different from the first direction X1 shown. Figure 4 The first direction X1 is shown. Figure 7A The second direction Y1 shown is different from Figure 4 The second direction Y1 is shown. Figure 7A The multiple spacers 200 shown Figure 4 The plurality of spacers 200 shown are relative to Figure 1 The multiple spacers 200 shown have different overall rotation angles.

[0094] In this example, the display substrate provides spacers 200, which are configured to include four different types of spacers 200. The relative positional relationship between the different types of spacers 200 and the sub-pixels 100 surrounding them is different. As a result, the relative positional relationship between the different types of spacers 200 and the mask opening of the mask is different. This is beneficial to reduce the number of spacers 200 exposed by the mask opening when the mask is offset. For example, if only one type of spacer 200 is exposed by a large size of the mask opening, the other spacers 200 still have a good supporting effect on the mask, thereby improving the supporting role of the spacers 200 on the mask.

[0095] Figure 7A The pixel arrangement shown is the same as Figure 4 The pixel arrangement shown is the same, so it will not be described again here.

[0096] Figure 7B The arrangement of the spacers 200 shown is similar to Figure 4 The difference in the arrangement of the spacers 200 shown is that the distribution of sub-pixels 100 between two adjacent spacers of different types 200 is different.

[0097] For example, such as Figure 7B As shown, M sub-pixels 100 are arranged between two first straight lines passing through the center of two adjacent different types of spacers 200, and N sub-pixels 100 are arranged between two second straight lines passing through the center of the aforementioned 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.

[0098] In some examples, such as Figure 7BAs shown, at least two different types of spacers 200 include four different types of spacers 200. 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.

[0099] Compared to Figure 1 The arrangement of spacers 200 is shown in this example. In the display substrate provided in this example, by changing the distance between adjacent spacers 200, the relative positional relationship between the spacers and sub-pixels is changed, the variety of spacers 200 is increased, and the supporting effect of the spacers 200 on the mask is improved.

[0100] Compared to Figure 1 The diagram shows the arrangement of the spacers 200 in the display substrate. Figure 7B The distance between adjacent spacers 200 in the display substrate is increased, and the density of the spacers 200 is reduced, which is beneficial for improving foreign matter removal.

[0101] For example, such as Figure 7B As shown, the plurality of spacers 200 include four different types of spacers 200, and the four vertices of the smallest grid-like unit correspond to the four different types of spacers 200 respectively. 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.

[0102] Figure 7B The side length of the smallest unit shown is different Figure 4 The side length of the smallest unit U0 shown is given, and Figure 7B The first direction X1 shown is different from the first direction X1 shown. Figure 4 The first direction X1 is shown. Figure 7B The second direction Y1 shown is different from Figure 4 The second direction Y1 is shown.

[0103] Figure 7B The pixel arrangement shown is the same as Figure 4 The pixel arrangement shown is the same, so it will not be described again here.

[0104] Figure 7C The arrangement of the spacers 200 shown is similar to Figure 4 The difference in the arrangement of the spacers 200 shown is that the distribution of sub-pixels 100 between two adjacent spacers of different types 200 is different.

[0105] For example, such as Figure 7CAs shown, M sub-pixels 100 are arranged between two first straight lines passing through the center of two adjacent different types of spacers 200, and N sub-pixels 100 are arranged between two second straight lines passing through the center of the aforementioned 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.

[0106] For example, such as Figure 7C As 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, a plurality of spacers 200 are arranged in an array along a first direction X1 and a second direction Y1, wherein 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.

[0107] Compared to Figure 1 The arrangement of spacers 200 shown in this example is such that, 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 variety of spacers 200 is increased, and thus the supporting effect of the spacers 200 on the mask is improved.

[0108] Compared to Figure 1 The diagram shows the arrangement of the spacers 200 in the display substrate. Figure 7C The distance between adjacent spacers 200 in the display substrate is reduced and the density of spacers 200 is increased, which helps to improve the support of spacers 200 on the mask template.

[0109] For example, such as Figure 7C As shown, the multiple spacers 200 include four different types of spacers 200, and the four vertices of the smallest grid-like unit correspond to the four different types of spacers 200 respectively.

[0110] Figure 7C The side length of the smallest unit shown is different Figure 4 The side length of the smallest unit U0 shown is given, and Figure 7C The first direction X1 shown is different from the first direction X1 shown. Figure 4 The first direction X1 is shown. Figure 7B The second direction Y1 shown is different from Figure 4 The second direction Y1 is shown.

[0111] Figure 7C The pixel arrangement shown is the same as Figure 4 The pixel arrangement shown is the same, so it will not be described again here.

[0112] Figure 7D The display substrate shown is Figure 4 The difference in the display substrate shown lies in the pixel arrangement and the distribution of sub-pixels 100 arranged between two adjacent spacers 200 of different types.

[0113] For example, such as Figure 7D As shown, multiple third-color sub-pixels 130 are arranged in an array along a first arrangement direction X10 and a second arrangement direction Y10, and multiple spacers 200 are arranged in an array along a first direction X1 and a 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. The multiple 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.

[0114] For example, such as Figure 7D As 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 row where the first color sub-pixel 110 is located and the pixel row where the third color sub-pixel 130 is located are alternately arranged in the first arrangement direction and staggered in the second arrangement direction.

[0115] For example, such as Figure 7D As shown, the first color subpixel 110 is a red subpixel, the second color subpixel 120 is a blue subpixel, and the third color subpixel 130 is a green subpixel. For example, the second color subpixel 120 has the largest area of ​​its luminous region.

[0116] For example, such as Figure 7D As shown, the same spacer 200 is surrounded by a first color subpixel 110, a second color subpixel 120, and two third color subpixels 130. For example, the centers of different types of spacers 200 point in different directions toward the center of the first color subpixel 110 surrounding them. For example, the centers of different types of spacers 200 point in different directions toward the center of the second color subpixel 120 surrounding them.

[0117] For example, such as Figure 7DAs shown, starting with the sub-pixel 100 located to the left (right, top, or bottom) of each type of spacer 200, the arrangement order of the sub-pixels 100 around different types of spacers 200 is different. For example, the sub-pixels 100 surrounding the first spacer 210 include a third color sub-pixel 130, a first color sub-pixel 110, a third color sub-pixel 130, and a second color sub-pixel 120 arranged in sequence; the sub-pixels 100 surrounding the second spacer 220 include a first color sub-pixel 110, a third color sub-pixel 130, a second color sub-pixel 120, and a third color sub-pixel 130 arranged in sequence; the sub-pixels 100 surrounding the third spacer 230 include a second color sub-pixel 120, a third color sub-pixel 130, a first color sub-pixel 110, and a third color sub-pixel 130 arranged in sequence; and the sub-pixels 100 surrounding the fourth spacer 240 include a third color sub-pixel 130, a second color sub-pixel 120, a third color sub-pixel 130, and a first color sub-pixel 110 arranged in sequence.

[0118] Figure 7E The display substrate shown is Figure 4 The difference in the display substrate shown lies in the pixel arrangement and the distribution of sub-pixels 100 arranged between two adjacent spacers 200 of different types.

[0119] For example, such as Figure 7E As shown, each color sub-pixel 100 in 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. 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, and the second direction is not parallel to the second arrangement direction. The multiple spacers 200 include four different types of spacers 200.

[0120] For example, such as Figure 7E As 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, and the pixel row where the first color sub-pixel 110 is located and the pixel row where the third color sub-pixel 130 is located are alternately arranged along the first arrangement direction.

[0121] For example, such as Figure 7E As 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.

[0122] For example, such as Figure 7EAs shown, the same spacer 200 is surrounded by a first color subpixel 110, a second color subpixel 120, and two third color subpixels 130. For example, the centers of different types of spacers 200 point in different directions toward the center of the first color subpixel 110 surrounding them. For example, the centers of different types of spacers 200 point in different directions toward the center of the second color subpixel 120 surrounding them.

[0123] For example, such as Figure 7E As 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.

[0124] For example, such as Figure 7E As shown, starting with the sub-pixel 100 located to the left (right, top, or bottom) of various types of spacers 200, the arrangement order of the sub-pixels 100 around different types of spacers 200 is different. For example, the sub-pixels 100 surrounding the first spacer 210 include a third color sub-pixel 130, a first color sub-pixel 110, and a second color sub-pixel 120 arranged in sequence; the sub-pixels 100 surrounding the second spacer 220 include a third color sub-pixel 130, a second color sub-pixel 120, and a first color sub-pixel 110 arranged in sequence; the sub-pixels 100 surrounding the third spacer 230 include a first color sub-pixel 110, a second color sub-pixel 120, a third color sub-pixel 130, and a third color sub-pixel 130 arranged in sequence; and the sub-pixels 100 surrounding the fourth spacer 240 include a second color sub-pixel 120, a first color sub-pixel 110, a third color sub-pixel 130, and a third color sub-pixel 130 arranged in sequence.

[0125] Figure 7F The display substrate shown is Figure 4 The difference in the display substrate shown lies in the pixel arrangement and the distribution of sub-pixels 100 arranged between two adjacent spacers 200 of different types.

[0126] For example, such as Figure 7FAs shown, each color sub-pixel 100 in 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. 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, and the second direction is not parallel to the second arrangement direction. Furthermore, the multiple spacers 200 include three different types of spacers 200. For example, the three different types of spacers 200 include a first spacer 210, a second spacer 220, and a third spacer 230.

[0127] In some examples, such as Figure 7F As shown, multiple 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 sub-pixels 100 surrounding the same spacer 200 include four sub-pixels 100, two of which have one color and the other two have another color.

[0128] In some examples, such as Figure 7F As shown, one of the sub-pixels having one color and the other sub-pixels having another color is the specific color sub-pixel 101.

[0129] In some examples, such as Figure 7F As shown, the sub-pixels 100 surrounding the same spacer 200 include four sub-pixels 100. Two of the four sub-pixels 100 are first sub-pixels 111 that emit the same color of light, and the other two sub-pixels 100 are second sub-pixels 112 that emit a different color of light. The first sub-pixels 111 and the second sub-pixels 112 are two different color sub-pixels among the first color sub-pixel 110, the second color sub-pixel 120, and the third color sub-pixel 130.

[0130] In some examples, such as Figure 7F As shown, one of the first sub-pixel 111 and the second sub-pixel 112 is a specific color sub-pixel 101. Figure 7F The first sub-pixel 111 is schematically shown as a specific color sub-pixel 101, but it is not limited thereto; a second sub-pixel 112 may also be a specific color sub-pixel 101.

[0131] For example, such as Figure 7FAs shown, the four sub-pixels 100 surrounding 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 surrounding the first spacer 210 include two first-color sub-pixels 110 and two second-color sub-pixels 120, and a specific color sub-pixel 101 can be a second-color sub-pixel 120; the four sub-pixels 100 surrounding the second spacer 220 include two second-color sub-pixels 120 and two third-color sub-pixels 130, and a specific color sub-pixel 101 can be a second-color sub-pixel 120; the four sub-pixels 100 surrounding the third spacer 230 include two first-color sub-pixels 110 and two third-color sub-pixels 130. Of course, the embodiments of this disclosure are not limited to this, and the specific color sub-pixel can also be a second-color sub-pixel or a third-color sub-pixel.

[0132] For example, such as Figure 7F As shown, the centers of different types of spacers 200 point in different directions toward the center of the third color sub-pixel 130 surrounding them. For example, the centers of different types of spacers 200 point in different directions toward the center of the first color sub-pixel 110 surrounding them. For example, the centers of different types of spacers 200 point in different directions toward the center of the second color sub-pixel 120 surrounding them.

[0133] For example, such as Figure 7F As shown, starting with the sub-pixel 100 located to the left (right, top, or bottom) of each type of spacer 200, the arrangement order of the sub-pixels 100 around different types of spacers 200 is different.

[0134] For example, such as Figure 7F As shown, the plurality of sub-pixels 100 include a first sub-pixel row, a second sub-pixel row, and a third sub-pixel row arranged sequentially along a first arrangement direction. The first sub-pixel row includes a first color sub-pixel 110 arranged along a second arrangement direction. The second sub-pixel row includes a second color sub-pixel 120 arranged along a second arrangement direction. The third sub-pixel row includes a third color sub-pixel 130 arranged along a second arrangement direction. The first color sub-pixel 110, the second color sub-pixel 120, and the third color sub-pixel 130 are arranged sequentially along the first arrangement direction.

[0135] For example, Figures 7D to 7F The diagram schematically shows the angle between the arrangement directions of the sub-pixels 100. This angle can be any angle greater than 0 and less than 180 degrees. In the above arrangement directions, the center of gravity of the sub-pixels 100 can be on a straight line or not on a straight line.

[0136] Figures 7A to 7F Different pixel arrangements and different spacer arrangements are shown only schematically. The spacer arrangement provided in this disclosure is applicable to various pixel arrangements.

[0137] Figure 8 This is a partial cross-sectional structural diagram of a display substrate provided according to an embodiment of the present disclosure. Figure 8 It can be a partial cross-sectional structural diagram of the display substrate shown in any of the above examples.

[0138] In some examples, such as Figure 8 As shown, the display substrate also includes a pixel defining pattern 300 located on the substrate 10. The pixel defining pattern 300 includes a plurality of openings 310 and pixel defining portions 320 surrounding the plurality of openings 310. The plurality of openings 310 are configured to define light-emitting areas 001 of at least a portion 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 with a relatively flat surface between two adjacent openings 310, and the spacer 200 is disposed on the flat portion 321.

[0139] For example, such as Figure 8 As shown, the spacer 200 is located on the side of the pixel defining portion 320 away from the substrate 10. Of course, the embodiments disclosed herein are not limited to this, and the spacer 200 may also be integrally formed with the pixel defining portion 320.

[0140] For example, such as Figure 8 As shown, the material of the pixel defining portion 320 includes organic materials. For example, the material of the pixel defining portion 320 may include polyimide, acrylic, or polyethylene terephthalate, etc.

[0141] In some examples, such as Figure 8 As shown, at least some sub-pixels 100 include 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. The light-emitting functional layer 143 includes at least two light-emitting layers 1430 stacked together.

[0142] For example, such as Figure 8 As shown, a sub-pixel 100 corresponds to at least one opening 310, at least a portion 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, a 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.

[0143] For example, such as Figure 8 As shown, the light-emitting functional layer 143 includes a charge-generating layer 1431. For example, the light-emitting functional layer 143 can be a light-emitting functional layer 143 included in an organic light-emitting element. For example, each sub-pixel 100 located in the display area includes a light-emitting element.

[0144] For example, such as Figure 8 As shown, the light-emitting functional layer 143 may include a first light-emitting layer 1430, a charge-generating layer 1431, and a second light-emitting layer 1430 stacked together, with the charge-generating layer 1431 located between the first and second light-emitting layers 1430. The charge-generating layer 1431 has strong conductivity, which enables the light-emitting functional layer 143 to have advantages such as long lifespan, low power consumption, and high brightness. For example, compared to a light-emitting functional layer 143 without a charge-generating layer, the sub-pixel 100 can nearly double its brightness by incorporating a charge-generating layer in the light-emitting functional layer 143.

[0145] For example, the same sub-pixel 100 can be a tandem structure, such as a Tandem OLED.

[0146] For example, the charge generation layer 1431 may include an N-type charge generation layer and a P-type charge generation layer.

[0147] For example, in each sub-pixel 100, the light-emitting functional layer 143 may also include a hole injection layer (HIL), a hole transport layer (HTL), an electron transport layer (ETL), and an electron injection layer (EIL).

[0148] For example, the hole injection layer, hole transport layer, electron transport layer, electron injection layer, and charge generation layer are all shared film layers of multiple sub-pixels 100, and can be referred to as common layers. For example, the aforementioned common layer and the second electrode 142 can be film layers formed using an open mask.

[0149] 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 disposed between the charge generation layer 1431 and the first light-emitting layer 1430. For example, a hole transport layer can be disposed 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 disposed between the second light-emitting layer 1430 and the second electrode 142.

[0150] 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 the same color of light. 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 different colors of light. By setting light-emitting layers 1430 that emit different colors of light 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. The color of the light emitted by each sub-pixel 100 can be adjusted by setting a color filter layer.

[0151] For example, such as Figure 8 As 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 metallic material. For example, the anode can be formed of a transparent conductive material with a high work function.

[0152] For example, such as Figure 8 As shown, the orthographic projection of the second electrode 142 in at least a portion of the sub-pixels 100 onto the substrate 10 is a full-surface structure. For example, the second electrode 142 can be a common electrode shared by multiple sub-pixels 100.

[0153] For example, such as Figure 8 As shown, a film layer 11 is disposed between the first electrode 141 and the substrate 10. The film layer 11 includes multiple insulating layers and a conductive layer. The conductive layer includes a pixel circuit that is electrically connected to the first electrode 141 of the sub-pixel 100. The conductive layer also includes various signal lines and other structures. The pixel circuit may include multiple thin-film transistors and at least one capacitor. The signal lines include data lines, gate lines, etc.

[0154] In the display substrate provided in this disclosure, by setting the light-emitting functional layer to include at least two light-emitting layers, it is beneficial to improve the lifespan and brightness of the light-emitting device and reduce power consumption to meet the user's requirements for the lifespan, power consumption and good display quality of the display device used in the display substrate application.

[0155] In their research, the inventors of this application also discovered that for display substrates with tandem structures, more photomasks are required during the evaporation of luminescent materials. If multiple photomasks may rub against the structure in the display substrate multiple times, more bright spots and dark spots will be formed compared to display substrates without tandem structures.

[0156] Therefore, by setting the arrangement of spacers in the display substrate, the probability of bright or dark spots appearing in the display substrate with a series structure can be significantly reduced, and the yield of light-emitting elements in the display substrate, such as organic electroluminescent devices, can be improved, especially the yield of series organic electroluminescent devices.

[0157] Another embodiment of this disclosure provides a display panel, including any of the above-described display substrates.

[0158] For example, the display panel provided in this embodiment can be an organic light-emitting diode (OLED) display panel. For example, the display panel may or may not have a color filter layer.

[0159] Figure 9 This is a schematic block diagram of a display device provided according to another embodiment of the present disclosure. Figure 9 As shown, an embodiment of this disclosure provides a display device including any of the above-described display substrates.

[0160] For example, the display substrate provided in this embodiment can be an organic light-emitting diode (OLED) display substrate. For example, the display substrate may or may not have a color filter layer.

[0161] For example, the display device also includes a cover plate located on the light-emitting side of the display substrate.

[0162] For example, the display device can be an organic light-emitting diode display device or other display device, as well as any product or component with display function, such as a television, digital camera, mobile phone, watch, tablet computer, laptop computer, or navigator that includes the display device. This embodiment is not limited to this.

[0163] The following points need to be explained:

[0164] (1) The accompanying drawings of the embodiments of this disclosure only involve the structures involved in the embodiments of this disclosure, and other structures can be referred to the general design.

[0165] (2) Where there is no conflict, features of the same embodiment and different embodiments of this disclosure may be combined with each other.

[0166] The above description is merely an exemplary embodiment of this disclosure and is not intended to limit the scope of protection of this disclosure, which is determined by the appended claims.

Claims

1. A display substrate, comprising: Substrate; Multiple sub-pixels are located on the substrate, and the multiple sub-pixels include multiple sub-pixels of different colors; Multiple spacers are located on the substrate. The plurality of spacers includes at least two different types of spacers. At least a portion of the spacers of each type are surrounded by the orthographic projections of the light-emitting areas 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. The orthographic projection centers of the different types of spacers point in different directions to the orthographic projection centers of the light-emitting areas of the specific color sub-pixel surrounding them.

2. The display substrate according to claim 1, wherein, The subpixels surrounding different types of spacers are arranged in different orders in the same direction, which includes either a clockwise direction or a counterclockwise direction.

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

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, wherein the first direction intersects the second direction; The centers of the orthographic projections of the plurality of spacers on the substrate are connected to form a grid, and the smallest unit of the grid is a quadrilateral, the four vertices of which 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-pixel among the plurality of sub-pixels is arranged in an array along a first arrangement direction and a second arrangement direction, wherein the first arrangement direction intersects the second arrangement direction; M sub-pixels are arranged between two first straight lines passing through the centers of two adjacent different types of spacers, and N sub-pixels are arranged between two second straight lines passing through the centers of the two adjacent different types of spacers. The first straight lines extend along the first arrangement direction, the second straight lines extend along the second arrangement direction, the M sub-pixels are arranged along the second arrangement direction, and 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, wherein the first direction intersects the second direction; The angle between the first direction and both the first and second arrangement directions is 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 the first included angle, and the angle between the second direction and the second arrangement direction is the second included angle. The difference between the first included angle and the second included angle is no 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, wherein the first direction intersects 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 plurality of different color sub-pixels include a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel, and the sub-pixels surrounding the same spacer include a first color sub-pixel, a 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 plurality of 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 of light, and the other two sub-pixels are second sub-pixels that emit a different color of light. The first sub-pixel and the second sub-pixel 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 plurality of different color sub-pixels include a first sub-pixel group and a second sub-pixel group arranged alternately along a first direction. The first sub-pixel group includes the first color sub-pixels and the third color sub-pixels arranged alternately along a second direction. The second sub-pixel group includes the second color sub-pixels and the third color sub-pixels arranged alternately 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 staggered in the second direction. The first direction intersects with the second direction.

16. The display substrate according to any one of claims 1-15, further comprising: Pixel-defined patterns are 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 area of ​​at least a portion of the plurality of sub-pixels. The distance between the surface of the spacer away from the substrate and the substrate is greater than the distance between the flat portion of the pixel defining portion away from the substrate and the substrate.

17. The display substrate according to any one of claims 1-15, wherein, At least some 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 together.

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

19. A display panel comprising the display substrate according to any one of claims 1-18.

20. A display device comprising the display substrate according to any one of claims 1-18.

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