Display substrate and display device

Abstract

The embodiment of the invention provides a display substrate and a display device. The display substrate comprises a color film layer and a black matrix layer, the color film layer comprises a plurality of color film structures; the black matrix layer is provided with a plurality of first openings, and each color film structure is provided with a light-transmitting part filled in the first opening and an anti-reflection part lapped on one side, far away from the substrate, of the black matrix layer; and no gap exists between the anti-reflection parts of the adjacent color film structures. By applying the display substrate provided by the invention, the reflectivity of external light on the display substrate can be reduced, so that the display effect of the display substrate is improved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display substrate and a display device. Background Art

[0002] In recent years, OLED (Organic Light-Emitting Diode) display devices have been widely used in various display products. Generally, OLED display devices need to use a polarizer (POL) to reduce the reflection of external light. However, the setting of the polarizer increases the thickness and cost of the OLED display device to a certain extent.

[0003] To this end, some OLED display devices are provided with color filters on the encapsulation layer, and the spaces between color filters of different colors are filled with BM (Black Matrix), so that external light is absorbed when passing through the color filters, thereby reducing the reflectivity of external light. However, the current color filter setting schemes in OLED display devices still generally have the problem of high reflectivity. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a display substrate and a display device to reduce the reflectivity of external light on the display substrate and improve the display effect of the display substrate. The specific technical solution is as follows:

[0005] In a first aspect, an embodiment of the present application provides a display substrate, including a color filter layer and a black matrix layer;

[0006] The color filter layer includes multiple color filter structures; the black matrix layer has multiple first openings, each of the color filter structures has a light-transmitting portion filled in the first opening, and an anti-reflection portion overlapped on the side of the black matrix layer away from the substrate; wherein there is no gap between the anti-reflection portions of adjacent color filter structures.

[0007] Optionally, the orthographic projection edges of the anti-reflection parts of adjacent color film structures on the substrate are attached to each other, and there is no overlapping part between the anti-reflection parts of adjacent color film structures.

[0008] or,

[0009] There are overlapping parts between the anti-reflection parts of adjacent color film structures.

[0010] Optionally, the orthographic projection edges of the anti-reflection parts of the multiple color filter structures on the substrate are serrated, and the serrated shapes of the edges of the anti-reflection parts of adjacent color filter structures match each other.

[0011] Optionally, the anti-reflection parts of the multiple color film structures have orthographic projection edges on the substrate in a square sawtooth shape, a triangle sawtooth shape, or a circular sawtooth shape.

[0012] Optionally, the plurality of color filter structures include a first color filter structure, a second color filter structure and a third color filter structure;

[0013] The first color filter structure and the second color filter structure are alternately arranged in sequence along the first direction, and are alternately arranged in sequence along the second direction to form a plurality of color filter rows and a plurality of color filter columns; the first direction is the row direction, and the second direction is the column direction, or the first direction is the column direction, and the second direction is the row direction;

[0014] Each of the third color filter structures is located between two adjacent first color filter structures and two adjacent second color filter structures in two adjacent color filter rows.

[0015] Optionally, the orthographic projection edges of the anti-reflection parts of the first color filter structure and the second color filter structure on the substrate are convex circular sawtooth shapes, and the orthographic projection edges of the anti-reflection parts of the third color filter structure on the substrate are concave circular sawtooth shapes,

[0016] or,

[0017] The orthographic projection edges of the anti-reflection parts of the first color filter structure and the second color filter structure on the substrate are concave circular sawtooth shapes, and the orthographic projection edges of the anti-reflection parts of the third color filter structure on the substrate are convex circular sawtooth shapes.

[0018] Optionally, the orthographic projections of the anti-reflection parts of the first color filter structure and the second color filter structure on the substrate have a concave circular sawtooth shape at the edge in the third direction and a convex circular sawtooth shape at the edge in the fourth direction, and the orthographic projections of the anti-reflection parts of the third color filter structure on the substrate have a convex circular sawtooth shape at the edge in the third direction and a concave circular sawtooth shape at the edge in the fourth direction; the third direction is the direction of the bisector of the angle between the first direction and the second direction, and the fourth direction is perpendicular to the third direction;

[0019] or,

[0020] The orthographic projections of the anti-reflection parts of the first color film structure and the second color film structure on the substrate have convex circular serrated edges in the third direction and concave circular serrated edges in the fourth direction; the orthographic projections of the anti-reflection parts of the third color film structure on the substrate have concave circular serrated edges in the third direction and convex circular serrated edges in the fourth direction.

[0021] Optionally, the display substrate further includes a pixel light-emitting layer disposed between the substrate and the color filter layer;

[0022] The pixel light emitting layer includes a pixel defining layer and a plurality of pixel light emitting units; the pixel defining layer includes a plurality of second openings, and the plurality of pixel light emitting units are respectively arranged in the plurality of second openings;

[0023] The projections of the first opening and the second opening on the substrate are located within the projection range of the color filter structure on the substrate.

[0024] Optionally, the width of the overlapping portion is less than or equal to 1.5 um.

[0025] In a second aspect, an embodiment of the present application further provides a display device, comprising any of the display substrates described above.

[0026] Beneficial effects of the embodiments of the present application:

[0027] The display substrate and display device provided in the embodiments of the present application include a color filter layer and a black matrix layer in the display substrate, the black matrix layer has a plurality of first openings, each color filter structure of the color filter layer has a light-transmitting portion filled in the first opening, and an anti-reflection portion overlapped on the side of the black matrix layer away from the substrate, and there is no gap between the anti-reflection portions of adjacent color filter structures.

[0028] It has been verified through experiments that the color filter substrate provided in the embodiment of the present application can reduce the reflectivity of external light on the display substrate by setting the anti-reflection parts of adjacent color filter structures in the color filter layer without gaps, thereby improving the display effect of the display substrate. In addition, since the internal light of the display substrate has a high transmittance in the color filter structure, a lower driving current can be used to ensure that the display substrate achieves a better display effect, which also helps to reduce the power consumption of the display substrate and increase the life of the device.

[0029] Of course, implementing any product or method of the present application does not necessarily require achieving all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other embodiments can also be obtained based on these drawings.

[0031] Figure 1 A schematic diagram of a structure of a display substrate in the related art;

[0032] Figure 2 A schematic diagram of the structure of a display substrate provided in an embodiment of the present application;

[0033] Figure 3Another structural schematic diagram of a display substrate provided in an embodiment of the present application;

[0034] Figure 4 It is a partial schematic diagram showing the adjacent color film structures in the substrate;

[0035] Figure 5 A schematic diagram of a first top view structure of a color filter structure in a display substrate provided in an embodiment of the present application;

[0036] Figure 6 A schematic diagram of a second top view structure of a color filter structure in a display substrate provided in an embodiment of the present application;

[0037] Figure 7 A schematic diagram of a third top view structure of a color filter structure in a display substrate provided in an embodiment of the present application;

[0038] Figure 8 A schematic diagram of a fourth top view structure of a color filter structure in a display substrate provided in an embodiment of the present application;

[0039] Fig. 9 A fifth schematic diagram of a top view of the color filter structure in the display substrate provided in an embodiment of the present application;

[0040] Reference numerals:

[0041] Substrate-10, pixel light-emitting layer-20, pixel defining layer-21, pixel light-emitting unit-22, encapsulation layer-30, black matrix layer-40, color filter layer-50, color filter structure-51, first color color filter structure-51a, second color color filter structure-51b, third color color filter structure-51c, light-transmitting portion-511, anti-reflection portion-512;

[0042] First opening-A1, second opening-A2;

[0043] The width of the overlapped part - w;

[0044] The first direction is D1, the second direction is D2, the third direction is D3, and the fourth direction is D4. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field based on the present application belong to the scope of protection of the present application.

[0046] The reflectivity of external light on a display device is an important parameter for measuring the performance of the display device. If the reflectivity of a display device is too high, when the user uses the display device in an environment with strong lighting, the external light will form reflections on the light-emitting side of the display substrate, causing the user to be unable to clearly see the content displayed by the display device, resulting in a poor user experience.

[0047] In order to reduce the reflectivity of external light on the display device, integrating a polarizer in the display substrate is a common solution. The polarizer can absorb light perpendicular to the transmission axis of the polarizer and only retain light parallel to the transmission axis of the polarizer, thereby achieving low reflectivity of the display substrate. However, the polarizer will also bring about a large loss of light output, resulting in an increase in the overall power consumption of the display substrate and cannot adapt to the development trend of flexible displays. Compared with the polarizer, the color filter layer has the advantages of high transmittance, lightness, and flexibility. Therefore, how to replace the polarizer with a color filter layer to reduce the reflectivity of the display substrate has become the current mainstream research direction.

[0048] Specifically, existing designs usually integrate color filter structures of different colors in a display substrate, and fill the gaps between adjacent color filter structures with a black matrix layer to reduce the reflectivity of external light on the display substrate. Figure 1 A display substrate in the related art is shown schematically. Figure 1 The display substrate has a black matrix layer 40 and a color filter layer 50 on the encapsulation layer 30. The black matrix layer 40 is provided with a plurality of openings. A portion of each color filter structure 51 in the color filter layer 50 is filled in the opening of the black matrix layer 40, and the other portion is overlapped on the black matrix layer 40.

[0049] When external light irradiates the display substrate, the color filter layer 50 can absorb and filter part of the light, thereby reducing the reflectivity of the external light on the display substrate.

[0050] exist Figure 1 In the illustrated structure, by filling the black matrix layer 40 between adjacent color filter structures 51 of different colors, it helps to reduce the reflection intensity of the screen body to the ambient light, and also helps to achieve isolation between different color luminous areas, thereby improving the contrast of the display device. Figure 1 In the illustrated structure, gaps are left between adjacent color filter structures 51 , so that a portion of the black matrix layer 40 is covered by the color filter structure 51 , while another portion is not covered by the color filter structure 51 .

[0051] In order to further reduce the reflectivity of external light on the display substrate, the present application is directed to Figure 1 The basic structure of the display substrate shown in FIG. 1 is improved to provide an improved display substrate. Figure 2 and Figure 3 The display substrate includes a color filter layer 50 and a black matrix layer 40 , and the color filter layer 50 includes a plurality of color filter structures 51 .

[0052] The black matrix layer 40 has a plurality of first openings A1, and each color filter structure 51 has a light-transmitting portion 511 filled in the first opening A1, and a reflective portion overlapping the side of the black matrix layer 40 away from the substrate 10. In the embodiment of the present application, there is no gap between the anti-reflection portions 512 of adjacent color filter structures 51.

[0053] For ease of understanding, the basic structure of the display substrate is briefly described first. Figure 2 and Figure 3 As shown in FIG. 1 , the display substrate generally further includes: a substrate 10, a pixel light emitting layer 20 disposed on the substrate 10, and an encapsulation layer 30, wherein the black matrix layer 40 and the color filter layer 50 are specifically disposed on the encapsulation layer 30. The pixel light emitting layer 20 includes a pixel defining layer 21 and a plurality of pixel light emitting units 22, wherein the pixel defining layer 21 has a plurality of second openings A2, and the plurality of pixel light emitting units 22 are respectively disposed in the plurality of second openings A2.

[0054] exist Figure 2 and Figure 3 In the illustrated structure, the number of the first openings A1 and the color filter structures 51 is consistent with the number of the second openings A2 and the pixel light-emitting units 22, and each first opening A1 and each color filter structure 51 is arranged corresponding to one pixel light-emitting unit 22 in the vertical direction. Specifically, the projection of each color filter structure 51 on the substrate 10 completely covers the projection of the corresponding first opening A1 and the second opening A2 on the substrate 10, so that the light emitted by each pixel light-emitting unit 22 will enter the color filter structure 51 through the second opening A2 and the first opening A1 in sequence, and will be emitted to the outside of the display substrate after being filtered by the color filter structure 51. In practical applications, the color filter layer 50 generally includes color filter structures 51 of different colors, such as a blue color filter structure, a red color filter structure, and a green color filter structure, and the color filter structures of different colors are alternately arranged with each other, and each color filter structure 51 can filter a specific color of light. Therefore, through the combination of these color filter structures 51 of different colors, the display substrate can display different colors.

[0055] In the above structure, the first opening A1 is mainly used to limit the size of the actual light emitting area, and the second opening A2 is mainly used to limit the viewing angle of the display substrate. In actual applications, the shapes of the first opening A1 and the second opening A2 can be the same or different, and the sizes of the first opening A1 and the second opening A2 can be designed according to actual needs. The first opening A1 can be larger than the second opening A2 or smaller than the second opening A2. Generally speaking, in order to avoid unnecessary restriction on the light output angle of the pixel light emitting unit 22, the first opening A1 and the second opening A2 are usually set to be circular, and the first opening A1 is larger than the second opening A2.

[0056] As mentioned above, the color filter layer 50 and the black matrix layer 40 can also absorb the external light irradiated from the outside to the display substrate, thereby reducing the reflectivity of the external light on the display substrate to ensure the display effect of the display substrate. Therefore, the specific design of the black matrix layer 40 and the color filter layer 50 is of great significance to the display performance of the display substrate.

[0057] Compared with the embodiment of the present application Figure 1 The main difference between the above designs is that in the display substrate provided in the embodiment of the present application, there is no gap between adjacent color filter structures 51, and the light incident from the outside will directly irradiate the color filter structure 51, and will not directly irradiate the black matrix layer 40 without passing through the color filter structure 51. As mentioned above, the color filter layer 50 is specifically composed of color filter structures 51 of different colors arranged alternately with each other, so each color filter structure is usually adjacent to several color filter structures of other colors, so in the display substrate provided in the embodiment of the present application, there is no gap between each two adjacent color filter structures of different colors. For example Figure 2 and Figure 3 Schematically, there is no gap between the third color filter structure 51c and the adjacent second color filter structure 51b, and there is no gap between the third color filter structure 51c and the adjacent first color filter structure 51a.

[0058] With respect to the specific arrangement of the color filter structure in the color filter layer 50, the present application provides two different arrangement schemes. Figure 2 and Figure 3 The two setting schemes are described in detail respectively.

[0059] In such Figure 2 In the illustrated structure, adjacent color film structures 51 specifically adopt a flush design, and the flush design here can be understood as: the edges of the anti-reflection parts 512 of adjacent color film structures 51 fit each other, and there is neither a gap nor an overlapping part between adjacent color films.

[0060] The edge of the anti-reflection portion 512 of the color filter structure 51 referred to in one or more subsequent embodiments of the present application can be specifically understood as the orthographic projection edge of the anti-reflection portion 512 on the substrate 10, that is, the orthographic projection edge of the color filter structure 51 on the substrate 10.

[0061] Figure 2 The figure illustrates a cross section of the third color film structure 51c, as well as a partial cross section of the second color film structure 51b and a partial cross section of the first color film structure 51a adjacent thereto. It can be seen that there is neither a gap nor an overlap between the third color film structure 51c and the second color film structure 51b adjacent thereto on one side, and they are designed to be flush. There is neither a gap nor an overlap between the third color film structure 51c and the first color film structure 51a adjacent thereto on the other side.

[0062] Considering Figure 2 The flush design shown may be difficult to achieve in actual production applications, so the present application provides an alternative solution, that is, when producing and preparing the display substrate provided by the present application, it is also possible to allow moderate overlap between adjacent color film structures 51, and the actual morphology of the obtained display substrate product is as follows: Figure 3 As shown. Figure 3 In the illustrated structure, the width w of the overlapping portion between adjacent color filter structures 51 can be adjusted through the manufacturing process. For example, the width w of the overlapping portion between adjacent color filter structures 51 can be set to be less than or equal to 1.5 um (micrometer).

[0063] exist Figure 3 In the diagram, the edge of the anti-reflection portion 512 on one side of the third color film structure 51c overlaps the anti-reflection portion 512 of the adjacent second color film structure 51b to form an overlapping portion, and the edge of the anti-reflection portion 512 on the other side of the third color film structure 51c overlaps the anti-reflection portion 512 of the adjacent first color film structure 51a to form another overlapping portion.

[0064] Different from Figure 1 The design scheme of leaving gaps between adjacent color film structures 51 shown in FIG. Figure 2 and Figure 3 In the two display substrate structures shown in FIG. 1 , the color film structure 51 in the color film layer 50 is designed to be flush with the color film structure 51 .

[0065] This application is for Figure 1 The structure of the display substrate shown in the figure and the present application Figure 3 The anti-reflection performance of the structure of the display substrate provided in the unit test was carried out, and the specific data are given below:

[0066] During the unit test, the structure used as a comparative example in the present application is: a BM (Black Matrix, black matrix layer) + OC (protective layer) structure coated on a substrate. Figure 3 The structure of the experimental example of the structural design shown in the figure is: BM + RG (overlapping structure of red pixel structure and green pixel structure) / GB (overlapping structure of green pixel structure and blue pixel structure) / RB (overlapping structure of red pixel structure and blue pixel structure) + OC structure coated on the substrate.

[0067] After testing, the reflectivity of the comparative example is 5.25%, and the reflectivity of the experimental example is 5.03%, indicating that the overlap between the color film structures can reduce the reflectivity.

[0068] In actual production applications, the proportion of the reflectivity that can be reduced can be further adjusted by adjusting the thickness of the color filter structure 51 and other processes. For example, the thickness of the color filter structure 51 can be adjusted so that the reflected light of the external light on the color filter structure and the reflected light of the external light on the black matrix layer are in reverse phase, thereby weakening or offsetting the reflected light, thereby reducing the reflectivity of the external light on the display substrate.

[0069] Experimental tests show that the color filter substrate provided in the embodiment of the present application can reduce the reflectivity of external light on the display substrate by setting the anti-reflection parts 512 of adjacent color filter structures 51 in the color filter layer 50 without gaps, thereby improving the display effect of the display substrate. In addition, since the internal light of the display substrate has a high transmittance in the color filter structure 51, a lower driving current can be used to ensure that the display substrate achieves a better display effect, which also helps to reduce the power consumption of the display substrate and increase the life of the device.

[0070] Furthermore, in the display substrate provided in the embodiment of the present application, the orthographic projection edge of each color filter structure 51 on the substrate is specifically serrated, for example, it can be designed as a square serrated, circular serrated, or triangular serrated, etc., as required. In the display substrate provided in the embodiment of the present application, the serrated shapes of the orthographic projection edges of adjacent color filter structures 51 on the substrate match each other. Figure 4 FIG. 1 shows a partial schematic diagram of adjacent color filter structures 51 in a display substrate. The sawtooth shapes of the orthographic projection edges of the color filter structures 51 on the substrate in the embodiment of the present application cooperate with each other, specifically, the sawtooth shapes of the orthographic projection edges of the adjacent color filter structures 51 on the substrate should be as follows: Figure 4 As shown in (a) of FIG. 1 , the protrusion on the edge of one color filter structure 51 is opposite to the groove on the edge of another color filter structure 51, and the protrusion on the edge of the other color filter structure 51 is opposite to the groove on the edge of the other color filter structure 51. Figure 4 As shown in (b) in FIG. 1 , the protrusion on the edge of one color filter structure 51 is opposite to the protrusion on the edge of another color filter structure 51 .

[0071] Specifically, by setting the edge of the color film structure 51 to be serrated, and making the serrated shapes of the edges of adjacent color film structures 51 cooperate with each other, on the one hand, the contact area between adjacent color film structures 51 can be increased, the adhesion between each other can be increased, the problem of peeling of the color film structure 51 can be avoided, and the overall structural strength of the color film layer 50 can be improved. On the other hand, it is also easier to make the adjacent color film structures 51 have a larger overlapping area under a specific overlapping width, and it is also easier to make the outer edge of each color film structure 51 closely fit with the outer edge of the adjacent color film structure 51, or overlap with the anti-reflection part 512 of the adjacent color film structure 51, reducing the design difficulty.

[0072] Figures 5 to 9 , which shows several different top view structures of the display substrate, and specifically shows several different edge forms that each color filter structure 51 can take, as well as the relative positional relationship between each color filter structure 51 and the corresponding first opening A1 and second opening A2 in a top view. Figures 5 to 9 Taking the planar arrangement of the first color filter structure 51a, the second color filter structure 51b and the third color filter structure 51c as an example, exemplary descriptions are given for the cases where the edge shapes of each color filter structure 51 are square serrated and circular serrated.

[0073] Exemplarily, the first color film structure 51a, the second color film structure 51b and the third color film structure 51c in the embodiment of the present application can be a red color film structure 51, a blue color film structure 51 and a green color film structure 51, respectively, or the first color film structure 51a, the second color film structure 51b and the third color film structure 51c can also adopt other color combinations, and the embodiment of the present application is not limited to this.

[0074] exist Figures 5 to 9 In the arrangement, the ratio of the first color filter structure 51a, the second color filter structure 51b and the third color filter structure 51c is 1:1:2, and the arrangement method is: the first color filter structure 51a and the second color filter structure 51b are arranged alternately in the first direction D1, and are arranged alternately in the second direction D2, forming a plurality of color filter rows and a plurality of color filter columns. The first direction D1 is the row direction, and the second direction D2 is the column direction, or the first direction D1 can be the column direction, and the second direction D2 can be the row direction.

[0075] Each third color filter structure 51c is located between two adjacent first color filter structures 51a and two second color filter structures 51b in two adjacent color filter rows, that is, every four first color filter structures 51a and second color filter structures 51b that are adjacent to each other surround a third color filter structure 51c. Figure 5 Take the example of the invention, wherein two first color filter structures 51a marked as r1 and r2 and two second color filter structures 51b marked as b1 and b2 surround a third color filter structure 51c marked as g1. Figures 5 to 9 The arrangement shown can achieve a high-density arrangement of the color filter structure 51, which helps to improve the resolution of the display substrate and ensure its display effect.

[0076] exist Figures 5 to 9 In the illustrated arrangement, the sawtooth shapes of the first color filter structure 51a, the second color filter structure 51b and the third color filter structure 51c are specifically arranged in the third direction D3 and the fourth direction D4. The third direction D3 is the angle bisector direction of the first direction D1 and the second direction D2, and the fourth direction D4 is perpendicular to the third direction D3.

[0077] like Figures 5 to 9 As shown, by arranging the edges of adjacent first color film structures 51a and second color film structures 51b in the first direction D1 to be flush or overlapped with each other, and the edges in the second direction D2 to be flush or overlapped with each other; the edges of adjacent first color film structures 51a and third color film structures 51c in the third direction D3 to be flush or overlapped with each other, and the edges in the fourth direction D4 to be flush or overlapped with each other; the edges of adjacent second color film structures 51b and third color film structures 51c in the third direction D3 to be flush or overlapped with each other, and the edges in the fourth direction D4 to be flush or overlapped with each other, it can be ensured that the adjacent color film structures 51 are flush or form overlapping parts with each other under this arrangement.

[0078] exist Figure 5 In the schematic diagram of FIG. 5 , the edges of the first color filter structure 51a, the second color filter structure 51b and the third color filter structure 51c are all square sawtooth-shaped. It can be seen that there is no gap between each two adjacent color filter structures 51 of different colors.

[0079] It should be understood that Figure 5 The structure in the figure is only an example. The number of saw teeth included in the edge of each color film structure 51 can be set according to actual needs to ensure that its basic shape is consistent with the actual shape of the color film structure 51. Figure 5 It can be similar.

[0080] In practical applications, Figure 5 The top view structure of the display substrate shown in the figure can be configured such that the edges of adjacent color filter structures 51 are flush with each other. Figure 5 The cross section of the structure at AA is as follows: Figure 2 As shown. The anti-reflection parts 512 of adjacent color film structures 51 may also be arranged to overlap each other. Figure 5The cross section of the structure at AA is as follows: Figure 3 shown.

[0081] exist Figures 6 to 9 In the schematic diagram, the edges of the first color filter structure 51a, the second color filter structure 51b and the third color filter structure 51c are all circular sawtooth shapes. Figures 6 to 9 The diagram illustrates several different combinations of circular sawtooth shapes of the edges of the first color filter structure 51a, the second color filter structure 51b and the third color filter structure 51c to ensure that the sawtooth shapes of the edges of adjacent color filter structures 51 are matched.

[0082] Specifically, the first color film structure 51a and the second color film structure 51b can be set to adopt a single concave design, and the third color film structure 51c can be set to adopt a single convex design, or vice versa, the first color film structure 51a and the second color film structure 51b can be set to adopt a single convex design, and the third color film structure 51c can be set to adopt a single concave design, so as to ensure that the serrated shapes of the edges of adjacent color film structures 51 cooperate with each other. Figure 6 and Figure 7 Respective illustrations are given for these two design ideas.

[0083] exist Figure 6 In the illustration, the edges of the first color filter structure 51a and the second color filter structure 51b are convex circular sawtooth shapes, and the edge of the third color filter structure 51c is concave circular sawtooth shapes.

[0084] exist Figure 7 In the diagram, the edges of the first color filter structure 51a and the second color filter structure 51b are concave circular sawtooth shapes, and the edge of the third color filter structure 51c is convex circular sawtooth shapes.

[0085] Alternatively, the first color filter structure 51a, the second color filter structure 51b and the third color filter structure 51c may all be designed to combine concave and convex shapes, ensuring that the edges of adjacent color filter structures 51 are matched with each other at the adjacent portions.

[0086] exist Figure 8 In the illustration, the edges of the first color film structure 51a and the second color film structure 51b in the third direction D3 are concave circular serrations, and the edges in the fourth direction D4 are convex circular serrations; the edge of the third color film structure 51c in the third direction D3 is convex circular serrations, and the edge in the fourth direction D4 is concave circular serrations.

[0087] exist Fig. 9In the illustration, the edges of the first color film structure 51a and the second color film structure 51b in the third direction D3 are convex circular serrations, and the edges in the fourth direction D4 are concave circular serrations; the edge of the third color film structure 51c in the third direction D3 is concave circular serrations, and the edge in the fourth direction D4 is convex circular serrations.

[0088] Similar to the previous description, Figures 6 to 9 The number of saw teeth included in the edge of each color film structure 51 can also be set according to actual needs to ensure that its basic shape and Figures 6 to 9 The indication is similar to .

[0089] In practical applications, the specific design of the edges of the first color filter structure 51a, the second color filter structure 51b and the third color filter structure 51c may have other problems. Figures 6 to 9 Other design solutions are not listed here.

[0090] As mentioned above Figure 6 Similar to the description of Figures 6 to 9 The schematic top view structure of the display substrate can be as follows Figure 2 As shown in the figure, the edges of adjacent color filter structures 51 are set flush, or Figure 3 Schematically, the anti-reflection parts 512 of adjacent color filter structures 51 are arranged to overlap each other.

[0091] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0092] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0093] The above description is only a preferred embodiment of the present application and is not intended to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. A display substrate, characterized in that: Including a color film layer and a black matrix layer; The color filter layer includes multiple color filter structures; the black matrix layer has multiple first openings, each of the color filter structures has a light-transmitting portion filled in the first opening, and an anti-reflection portion overlapped on the side of the black matrix layer away from the substrate; wherein there is no gap between the anti-reflection portions of adjacent color filter structures.

2. The display substrate according to claim 1, characterized in that: The orthographic projection edges of the anti-reflection parts of adjacent color film structures on the substrate are attached to each other, and there is no overlapping part between the anti-reflection parts of adjacent color film structures. or, There are overlapping parts between the anti-reflection parts of adjacent color film structures.

3. The display substrate according to claim 1, characterized in that: The orthographic projection edges of the anti-reflection parts of the multiple color filter structures on the substrate are serrated, and the serrated shapes of the orthographic projection edges of the anti-reflection parts of adjacent color filter structures on the substrate match each other.

4. The display substrate according to claim 3, characterized in that: The orthographic projection edges of the anti-reflection parts of the multiple color film structures on the substrate are in a square sawtooth shape, a triangle sawtooth shape or a circular sawtooth shape.

5. The display substrate according to claim 1, characterized in that: The multiple color filter structures include a first color filter structure, a second color filter structure and a third color filter structure; The first color filter structure and the second color filter structure are alternately arranged in sequence along the first direction, and are alternately arranged in sequence along the second direction to form a plurality of color filter rows and a plurality of color filter columns; the first direction is the row direction, and the second direction is the column direction, or the first direction is the column direction, and the second direction is the row direction; Each of the third color filter structures is located between two adjacent first color filter structures and two adjacent second color filter structures in two adjacent color filter rows.

6. The display substrate according to claim 5, characterized in that: The orthographic projection edges of the anti-reflection parts of the first color filter structure and the second color filter structure on the substrate are convex circular sawtooth shapes, and the orthographic projection edges of the anti-reflection parts of the third color filter structure on the substrate are concave circular sawtooth shapes. or, The orthographic projection edges of the anti-reflection parts of the first color filter structure and the second color filter structure on the substrate are concave circular sawtooth shapes, and the orthographic projection edges of the anti-reflection parts of the third color filter structure on the substrate are convex circular sawtooth shapes.

7. The display substrate according to claim 5, characterized in that: The edges of the orthographic projections of the anti-reflection parts of the first color filter structure and the second color filter structure on the substrate in the third direction are in a concave circular sawtooth shape, and the edges in the fourth direction are in a convex circular sawtooth shape; the edges of the orthographic projections of the anti-reflection parts of the third color filter structure on the substrate in the third direction are in a convex circular sawtooth shape, and the edges in the fourth direction are in a concave circular sawtooth shape; the third direction is the direction of the angle bisector between the first direction and the second direction, and the fourth direction is perpendicular to the third direction; or, The orthographic projections of the anti-reflection parts of the first color film structure and the second color film structure on the substrate have convex circular serrated edges in the third direction and concave circular serrated edges in the fourth direction; the orthographic projections of the anti-reflection parts of the third color film structure on the substrate have concave circular serrated edges in the third direction and convex circular serrated edges in the fourth direction.

8. The display substrate according to claim 1, characterized in that: It also includes a pixel light-emitting layer disposed between the substrate and the color filter layer; The pixel light emitting layer includes a pixel defining layer and a plurality of pixel light emitting units; the pixel defining layer includes a plurality of second openings, and the plurality of pixel light emitting units are respectively arranged in the plurality of second openings; The projections of the first opening and the second opening on the substrate are located within the projection range of the color filter structure on the substrate.

9. The display substrate according to any one of claims 2 to 8, characterized in that: The width of the overlapping portion is less than or equal to 1.5 um.

10. A display device, characterized in that: A display substrate comprising any one of claims 1-8.

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