CN116033796A - Display substrate, display panel and display device - Google Patents

Abstract

The application provides a display substrate, a display panel and a display device. The display substrate comprises a substrate, a light-emitting layer arranged on the substrate, a shading layer arranged on one side of the light-emitting layer, which is away from the substrate, a flat layer arranged on one side of the shading layer, which is away from the substrate, and a color filter layer arranged on one side of the flat layer, which is away from the substrate. The light emitting layer includes a plurality of sub-pixels. The shading layer comprises a plurality of shading parts, and orthographic projections of the shading parts on the substrate are positioned between orthographic projections of adjacent sub-pixels on the substrate. The color filter layer comprises a plurality of color resistance units, and one side surface of each color resistance unit facing the substrate is basically flat; the orthographic projection of each color resistance unit on the substrate is overlapped with the orthographic projection of the shading layer on the substrate. The display panel includes the display substrate. The display device includes the display panel.

Description

Display substrate, display panel and display device

Technical Field

The present disclosure relates to the field of display technologies, and in particular, to a display substrate, a display panel, and a display device.

Background

An OLED (Organic Light-Emitting Diode) has advantages of a wide viewing angle, a fast response, a high contrast ratio, and the like, and has been widely used in display devices.

The existing OLED display equipment has the problem of smaller visual angle, and is not beneficial to improving the use experience of users.

Disclosure of Invention

A first aspect of embodiments of the present application provides a display substrate. The display substrate includes:

a substrate;

a light emitting layer on the substrate, the light emitting layer including a plurality of sub-pixels;

the light shielding layer is positioned at one side of the light emitting layer, which is far away from the substrate, and comprises a plurality of light shielding parts, and the orthographic projection of the light shielding parts on the substrate is positioned between orthographic projections of adjacent sub-pixels on the substrate;

the flat layer is positioned on one side of the shading layer away from the substrate;

a color filter layer positioned on one side of the flat layer away from the substrate, wherein the color filter layer comprises a plurality of color resistance units, and the surface of one side of each color resistance unit facing the substrate is basically flat; the orthographic projection of each color resistance unit on the substrate is overlapped with the orthographic projection of the shading layer on the substrate.

In one embodiment, the display substrate further includes a touch layer located between the light emitting layer and the color filter layer, the touch layer including at least one electrode layer and at least one insulating layer; the light shielding layer includes the at least one insulating layer, or the light shielding layer includes the at least one electrode layer.

In one embodiment, the at least one electrode layer comprises a first electrode layer, and a second electrode layer located on a side of the first electrode layer facing away from the substrate; the at least one insulating layer includes a first insulating layer between the first electrode layer and the second electrode layer; one of the first electrode layer and the second electrode layer comprises a plurality of touch electrodes, and the other one comprises a bridging electrode for electrically connecting adjacent touch electrodes.

In one embodiment, the light shielding layer includes the first insulating layer.

In one embodiment, the light shielding layer includes the plurality of touch electrodes, or the light shielding layer includes the first electrode layer and the second electrode layer.

In one embodiment, the display substrate further comprises a pixel defining layer, wherein the pixel defining layer is provided with pixel openings corresponding to the sub-pixels one by one; the first insulating layer is provided with through holes corresponding to the pixel openings one by one, and orthographic projection of the through holes on the substrate covers orthographic projection of the corresponding pixel openings on the substrate;

the first insulating layer is partially positioned between the first electrode layer and the second electrode layer, and coats the side part of the first electrode layer, and the first insulating layer comprises an insulating part arranged around the through hole; the side surface of the insulating part extends obliquely in a direction away from the substrate and away from the through hole; the touch control layer further comprises a second insulating layer which is positioned in the through hole and is in contact with the insulating part, and the refractive index of the second insulating layer is larger than that of the insulating part.

In one embodiment, the material of the second insulating layer is an organic material, and the material of the insulating part is an organic material or an inorganic material; and/or the number of the groups of groups,

the material of the insulating part is the same as or different from the material of other parts of the insulating layer.

In one embodiment, edges of orthographic projections of adjacent ones of the color resist units on the substrate substantially coincide.

A second aspect of the embodiments of the present application provides a display panel, which includes the display substrate described above.

A third aspect of the embodiments of the present application provides a display device, which includes the display panel described above.

According to the display substrate, the display panel and the display device provided by the embodiment of the application, the orthographic projection of the shading part on the substrate is positioned between orthographic projections of adjacent sub-pixels on the substrate, and the shading part can prevent the adjacent sub-pixels from color cross; the light shielding part is positioned between the color filter layer and the light emitting layer, so that the distance between the light shielding part and the sub-pixel is smaller than the distance between the color filter layer and the sub-pixel, and compared with the scheme that the light shielding part and the color filter layer are arranged on the same layer, the distance between the light shielding part and the sub-pixel is reduced, the emergent angle of light emitted by the sub-pixel is increased, and the visual angle of the display substrate is further increased; because each color resistance unit of the color filter layer is positioned on the flat layer, the surface of the color resistance unit facing the substrate side is basically flat, the phenomenon of color separation when external light enters the color filter layer due to poor surface flatness of the color resistance unit facing the substrate side can be improved, and the display effect of the display substrate can be improved.

Drawings

FIG. 1 is a partial cross-sectional view of a display substrate provided in an exemplary embodiment of the present application;

FIG. 2 is a partial cross-sectional view of a display substrate provided in another exemplary embodiment of the present application;

fig. 3 is a partial cross-sectional view of a display substrate provided in accordance with yet another exemplary embodiment of the present application;

fig. 4 is a schematic view showing a partial structure of a display substrate according to an exemplary embodiment of the present application.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the accompanying claims.

The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, a first message may also be referred to as a second message, and similarly, a second message may also be referred to as a first message, without departing from the scope of the present application. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "responsive to a determination", depending on the context.

The embodiment of the application provides a display substrate, a display panel and a display device. The display substrate, the display panel and the display device in the embodiments of the present application will be described in detail with reference to the accompanying drawings. The features of the embodiments described below can be supplemented or combined with one another without conflict.

The embodiment of the application provides a display substrate. As shown in fig. 1 to 3, the display substrate includes a substrate 10, a light emitting layer 20 on the substrate 10, a light shielding layer 30 on a side of the light emitting layer 20 facing away from the substrate 10, a flat layer 40 on a side of the light shielding layer 30 facing away from the substrate 10, and a color filter layer 50 on a side of the flat layer 40 facing away from the substrate 10.

The light emitting layer 20 includes a plurality of sub-pixels 21. The light shielding layer 30 includes a plurality of light shielding portions 31, and orthographic projections of the light shielding portions 31 on the substrate 10 are located between orthographic projections of adjacent sub-pixels 21 on the substrate 10. The color filter layer 50 includes a plurality of color resist units 51, and a side surface of each color resist unit 51 facing the substrate 10 is substantially flat. The front projection of each color blocking unit 51 on the substrate 10 overlaps with the front projection of the light shielding layer 30 on the substrate 10.

Wherein the substantially flat surface of the side of each color resist unit 51 facing the substrate 10 means that the surface of the side of each color resist unit 51 facing the substrate 10 is flush or that the distances from the surface of the side of each color resist unit facing the substrate 10 to the substrate are slightly different.

In the display substrate provided by the embodiment of the application, the orthographic projection of the light shielding part 31 on the substrate 10 is positioned between the orthographic projections of the adjacent sub-pixels 21 on the substrate 10, and the light shielding part 31 can avoid the cross color of the adjacent sub-pixels; the light shielding portion 31 is located between the color filter layer 50 and the light emitting layer 20, and the distance between the light shielding portion 31 and the sub-pixel 21 is smaller than the distance between the color filter layer 50 and the sub-pixel 21, so that the distance between the light shielding portion 31 and the sub-pixel 21 is reduced, the emergent angle of the light emitted by the sub-pixel 21 is increased, and the viewing angle of the display substrate is further increased, compared with the scheme that the light shielding portion 31 and the color filter layer 50 are arranged on the same layer; since each color resist unit 51 of the color filter layer 50 is located on the flat layer 40, the surface of the color resist unit 51 facing the substrate 10 is substantially flat, which can improve the color separation phenomenon when external light is incident on the color filter layer 50 due to poor flatness of the surface of the color resist unit 51 facing the substrate 10, and is helpful for improving the display effect of the display substrate.

In one embodiment, the substrate 10 may be a flexible substrate or a rigid substrate. The material of the flexible substrate may include one or more of polyimide, polyethylene terephthalate, and polycarbonate. The material of the rigid substrate may be glass.

In one embodiment, the display substrate further includes a pixel driving circuit layer between the substrate 10 and the light emitting layer 20, the pixel driving circuit layer including a plurality of pixel circuits. The pixel circuits may be in one-to-one correspondence with the sub-pixels 21, and the pixel circuits drive the corresponding sub-pixels 21.

In some embodiments, the pixel circuit includes a thin film transistor 71 and a capacitor 72. The thin film transistor 71 includes an active layer 711, a gate electrode 712, a first electrode 713, and a second electrode 714. One of the first pole 713 and the second pole 714 is a source electrode, and the other is a drain electrode. The capacitor 72 comprises a first capacitor plate 721 and a second capacitor plate 722 located on a side of the first capacitor plate 721 facing away from the substrate 10. Wherein the gate electrode 712 and the first capacitor plate 721 may be disposed on the same layer; the first pole 713 and the second pole 714 may be arranged in the same layer. The arrangement of two structures on the same layer means that the two structures are positioned on the same layer and made of the same material, and can be formed simultaneously in one patterning process.

The pixel driving circuit layer may further include a gate insulating layer 62, a capacitor insulating layer 63, an interlayer dielectric layer 64, a connection portion 73, a first planarization layer 65, and a second planarization layer 66. The gate insulating layer 62 is located between the active layer 711 and the gate electrode 712, the capacitor insulating layer 63 is located between the first capacitor plate 721 and the second capacitor plate 722, the interlayer dielectric layer 64 is located between the second capacitor plate 722 and the first planarization layer 65, the connection portion 73 is located between the first planarization layer 65 and the second planarization layer 66, and is electrically connected to the second electrode 714 through a via hole penetrating the first planarization layer 65. A part of the first electrode 713 and the second electrode 714 is located between the interlayer dielectric layer 64 and the first planarization layer 65, and the other part is electrically connected to the active layer 711 through a via hole penetrating the interlayer dielectric layer 64, the capacitor insulating layer 63, and the gate insulating layer 62.

In one embodiment, the display substrate may further include a buffer layer 61 between the substrate 10 and the pixel driving circuit layer.

In one embodiment, each sub-pixel 21 of the light emitting layer 20 includes a first electrode 211, a light emitting material layer 212 located on a side of the first electrode 211 facing away from the substrate 10, and a second electrode 213 located on a side of the light emitting material layer 212 facing away from the substrate 10. The first electrodes 211 of the sub-pixels 21 are spaced apart, and the second electrodes 213 of the sub-pixels 21 may be surface electrodes connected in one piece. In some embodiments, the first electrode 211 is an anode, the second electrode 213 is a cathode, and the light emitting material layer 212 is an organic light emitting material layer.

The first electrode 211 of the sub-pixel 21 is electrically connected to the connection portion 73 through a via hole penetrating the first planarization layer 65 and the second planarization layer 66, and is further electrically connected to the second electrode 714 of the thin film transistor 71 through the connection portion 73. When the thin film transistor 71 is an n-type transistor, the second electrode 714 is a source electrode; when the thin film transistor 71 is a p-type transistor, the second electrode 714 is a drain electrode.

In one embodiment, the display substrate further includes a pixel defining layer 67, and the pixel defining layer 67 is provided with a plurality of pixel openings, and the pixel openings are in one-to-one correspondence with the sub-pixels 21. The pixel defining layer 67 is located on the first electrode 211, covers an edge of the first electrode 211, and the pixel opening exposes a portion of the corresponding first electrode 211. The luminescent material layer 212 of the sub-pixel 21 is at least partially located within the corresponding pixel opening. The orthographic projection of the light shielding part 31 on the substrate 10 is located between the orthographic projections of the adjacent sub-pixels 21 on the substrate 10, that is, the orthographic projection of the light shielding part 31 on the substrate 10 is located between the orthographic projections of the adjacent pixel openings on the substrate 10, and the orthographic projection of the light shielding part 31 on the pixel defining layer 67 is located outside the pixel openings.

In one embodiment, the display substrate further includes a touch layer 80 between the light emitting layer 20 and the color filter layer 50, and the touch layer 80 includes at least one electrode layer 82 and at least one insulating layer 81. The light shielding layer 30 includes the at least one insulating layer 81, or the light shielding layer 30 includes the at least one electrode layer 82. Thus, the at least one insulating layer 81 or the at least one electrode layer 82 of the touch layer 80 is multiplexed into the light shielding layer 30, so that the thickness of the display substrate is not increased due to the light shielding layer 30, which is beneficial to realizing the light and thin display substrate.

In one embodiment, as shown in fig. 1 to 3, the at least one electrode layer 82 includes a first electrode layer 821 and a second electrode layer 822 located on a side of the first electrode layer 821 facing away from the substrate 10; the at least one insulating layer 81 includes a first insulating layer 811 between the first electrode layer 821 and the second electrode layer 822. One of the first electrode layer 821 and the second electrode layer 822 includes a plurality of touch electrodes, and the other includes a bridging electrode for electrically connecting adjacent touch electrodes. In one exemplary embodiment, the first electrode layer 821 includes a plurality of bridge electrodes and the second electrode layer includes a plurality of touch electrodes.

In some embodiments, the plurality of touch electrodes includes a plurality of first touch electrode groups and a plurality of second touch electrode groups, each first touch electrode group includes a plurality of first touch electrodes sequentially connected along a first direction, each second touch electrode group includes a plurality of second touch electrodes sequentially connected along a second direction, and the plurality of first touch electrodes and the plurality of second touch electrodes are staggered. The first touch electrodes in the first touch electrode group are connected through connecting parts arranged on the same layer with the first touch electrodes, and the second touch electrodes in the second touch electrode group are connected through the bridging electrodes. Of course, the connection of the plurality of second touch electrodes may be realized by the connection portion, and the connection of the first touch electrode may be realized by the bridging electrode. In one exemplary embodiment, the first direction and the second direction may be perpendicular to each other, for example, the first direction is a row direction, the second direction or a column direction; or the first direction is the column direction and the second direction is the row direction.

In one embodiment, as shown in fig. 1, 2 and 4, the light shielding layer 30 includes the first insulating layer 811. The light shielding layer 30 may be a first insulating layer 811. The plurality of light shielding portions 31 of the light shielding layer 30 are connected. The light shielding layer 30, that is, the first insulating layer 811, is provided with a plurality of through holes 813, and the plurality of through holes 813 may correspond to the pixel openings 671 of the pixel defining layer 67 one by one, and the orthographic projection of the through holes 813 on the substrate covers the orthographic projection of the corresponding pixel openings 671 on the substrate. Further, the edge of the orthographic projection of the pixel opening 671 on the substrate 10 is located inside the edge of the orthographic projection of the corresponding opening 32 on the substrate 10.

In another embodiment, the light shielding layer 30 includes the plurality of touch electrodes, or the light shielding layer includes the first electrode layer 821 and the second electrode layer 822. In the embodiment shown in fig. 3, the light shielding layer 30 includes a first electrode layer 821 and a second electrode layer 822. In other embodiments, the light shielding layer 30 may include only the plurality of touch electrodes. Preferably, the light shielding layer 30 includes the first electrode layer 821 and the second electrode layer 822, so that the light shielding effect of the light shielding layer 30 is better, and the cross color between adjacent sub-pixels is avoided.

Further, the light shielding layer is made of molybdenum oxide, and the molybdenum oxide has good conductivity and light shielding performance.

In one embodiment, as shown in fig. 2 and 3, the first insulating layer 811 is provided with through holes 813 corresponding to the pixel openings one by one; the first insulating layer 811 is partially located between the first electrode layer 821 and the second electrode layer 822, and the first insulating layer 811 covers a side portion of the first electrode layer 821. When the first electrode layer 821 includes a plurality of bridge electrodes, the first insulating layer 811 covers the side portions of the respective bridge electrodes. The touch layer 80 also includes a second insulating layer 68 within the via 813. The second insulating layer 68 includes a plurality of insulating structures arranged at intervals, and each through hole 813 is provided with an insulating structure, respectively. The first insulating layer 811 includes an insulating portion 812 disposed around the via 813, and the insulating portion 812 is in direct contact with the second insulating layer 68. In a direction away from the substrate 10, the side surface of the insulating portion 812 extends obliquely in a direction away from the through hole 813. The second insulating layer 68 has a refractive index greater than that of the insulating portion 812.

So configured, in the process of emitting light from the sub-pixel 21 in a direction away from the substrate 10, the light is first incident on the second insulating layer 68, and then is incident on the interface between the second insulating layer 68 and the insulating portion 812, and since the refractive index of the second insulating layer 68 is greater than that of the insulating portion 812, most of the light is reflected at the interface between the second insulating layer 68 and the insulating portion 812; since the side surface of the insulating portion 812 extends obliquely in a direction away from the substrate 10 toward a direction away from the through hole 813, the reflected light may continue to propagate in a direction away from the substrate and exit through the light-blocking unit. Therefore, the display substrate provided by the embodiment of the application can increase the quantity of emergent light rays and improve the utilization rate of the light rays.

In one embodiment, the material of the second insulating layer 68 is an organic material, and the material of the insulating portion 812 is an inorganic material. For example, the material of the second insulating layer 68 is PSPI (photosensitive polyimide) having a refractive index of 1.8; the insulating portion 812 is made of silicon oxide, and has a refractive index of 1.46.

In one embodiment, the material of the second insulating layer 68 is an organic material, and the material of the insulating portion 812 is an organic material. The refractive index of the second insulating layer 68 may be made larger than that of the insulating portion 812 by selecting a different organic material.

In one embodiment, the material of the first insulating layer is an organic material. With the arrangement, compared with the scheme that the material of the first insulating layer is inorganic material, the bending performance of the display substrate can be improved.

In one embodiment, the material of the insulating portion 812 is the same as or different from the material of the other portions of the insulating layer 811. When the material of the insulating portion 812 is the same as that of the other portion of the insulating layer 811, the insulating layer 811 may be formed in one process step, which helps to simplify the manufacturing process with respect to a scheme in which the material of the insulating portion 812 is different from that of the other portion of the insulating layer 811. In the embodiment shown in fig. 2, the insulating portion 812 is different in material from other portions of the insulating layer 811; in the embodiment shown in fig. 3, the insulating portion 812 is the same material as the other portions of the insulating layer 811.

In one embodiment, the second insulating layer 68 is the same material as the planarizing layer 40. Thus, the second insulating layer 68 and the planarization layer 40 can be formed simultaneously in the same process step, which helps to simplify the manufacturing process.

In one embodiment, the material of the planarizing layer 40 is an organic material. This arrangement helps to make the surface of the planarization layer 40 facing away from the substrate have better flatness, and further helps to make the surface of each color resist unit facing toward the substrate have better flatness, so as to more effectively improve the color separation phenomenon occurring when external light is incident on the color filter layer 50.

In one embodiment, each color resist element 51 of the color filter layer 50 is substantially flush with a surface facing away from the substrate 10. With this arrangement, the color separation phenomenon occurring when external light is incident on the color filter layer 50 can be further improved.

In one embodiment, edges of orthographic projections of adjacent ones of the color resist units 51 on the substrate substantially coincide. Wherein, the edges of the orthographic projections of the adjacent color resist units 51 on the substrate are substantially coincident, which means that the edges of the orthographic projections of the adjacent color resist units 51 on the substrate are coincident, or that there is a small gap between the edges of the orthographic projections of the adjacent color resist units 51 on the substrate. I.e. the sides of adjacent color resist units 51 are in direct contact or the side spacing of adjacent color resist units 51 is small. Thus, the color filter layer 50 can effectively reduce the reflectivity of the incident ambient light.

In one embodiment, the color-blocking units 51 are in one-to-one correspondence with the sub-pixels 21, the color-blocking units 51 are the same as the colors of the corresponding sub-pixels 21, the orthographic projection of the color-blocking units 51 on the substrate covers the orthographic projection of the pixel openings of the corresponding sub-pixels 21 on the substrate, and the orthographic projection area of the color-blocking units 51 on the substrate is larger than the orthographic projection area of the pixel openings of the corresponding sub-pixels 21 on the substrate. So set up, the light that sub-pixel sent almost all passes through corresponding color resistance unit, helps promoting the purity of light.

In one embodiment, the light emitting layer 20 includes at least three colors of sub-pixels 21, and the number of colors of the color blocking unit 51 is the same as the number of colors of the sub-pixels 21. For example, the light emitting layer 20 includes three color sub-pixels, respectively red, green and blue sub-pixels; the color filter layer 50 includes red color resist units, green color resist units, and blue color resist units.

In one embodiment, as shown in fig. 1 to 3, the display substrate further includes an encapsulation layer 90 between the light emitting layer 20 and the touch layer 80. The encapsulation layer 90 may be a thin film encapsulation layer, which includes alternately arranged inorganic film layers and organic film layers, for example, the thin film encapsulation layer includes a first inorganic film layer 91, an organic film layer 92 on a side of the first inorganic film layer 91 facing away from the substrate, and a second inorganic film layer 93 on a side of the organic film layer 92 facing away from the substrate.

In one embodiment, as shown in fig. 1 to 3, the display substrate further includes an organic material layer 69 on a side of the color filter layer 50 facing away from the substrate, and the organic material layer 69 covers the color filter layer 50. The material of the organic material layer 69 may be an optical cement.

The embodiment of the application also provides a display panel. The display panel comprises the display substrate according to any one of the embodiments.

The display panel further comprises a cover plate located on one side, away from the substrate, of the display substrate, and when the material of the organic material layer 69 is optical cement, the cover plate can be adhered to the display substrate through optical cement.

The embodiment of the application also provides a display device, which comprises the display panel.

In one embodiment, the display device further includes a driver for providing a driving signal for driving the sub-pixels to emit light, and a power circuit for supplying power to the display panel.

In one embodiment, the display device further includes a housing, and the display panel is disposed within the housing.

The display device provided by the embodiment of the application can be any device with a display function, such as a mobile phone, a tablet personal computer, a television, a notebook computer, a vehicle-mounted device and the like.

It is noted that in the drawings, the size of layers and regions may be exaggerated for clarity of illustration. Moreover, it will be understood that when an element or layer is referred to as being "on" another element or layer, it can be directly on the other element or intervening layers may be present. In addition, it will be understood that when an element or layer is referred to as being "under" another element or layer, it can be directly under the other element or intervening layers or elements may be present. In addition, it will be understood that when a layer or element is referred to as being "between" two layers or elements, it can be the only layer between the two layers or elements, or more than one intervening layer or element may also be present. Like reference numerals refer to like elements throughout.

Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.

It is to be understood that the present application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims (10)

1. A display substrate, the display substrate comprising:

a substrate;

a light emitting layer on the substrate, the light emitting layer including a plurality of sub-pixels;

the light shielding layer is positioned at one side of the light emitting layer, which is far away from the substrate, and comprises a plurality of light shielding parts, and the orthographic projection of the light shielding parts on the substrate is positioned between orthographic projections of adjacent sub-pixels on the substrate;

the flat layer is positioned on one side of the shading layer away from the substrate;

a color filter layer positioned on one side of the flat layer away from the substrate, wherein the color filter layer comprises a plurality of color resistance units, and the surface of one side of each color resistance unit facing the substrate is basically flat; the orthographic projection of each color resistance unit on the substrate is overlapped with the orthographic projection of the shading layer on the substrate.

2. The display substrate of claim 1, further comprising a touch layer between the light emitting layer and the color filter layer, the touch layer comprising at least one electrode layer and at least one insulating layer; the light shielding layer includes the at least one insulating layer, or the light shielding layer includes the at least one electrode layer.

3. The display substrate of claim 2, wherein the at least one electrode layer comprises a first electrode layer, and a second electrode layer on a side of the first electrode layer facing away from the substrate; the at least one insulating layer includes a first insulating layer between the first electrode layer and the second electrode layer; one of the first electrode layer and the second electrode layer comprises a plurality of touch electrodes, and the other one comprises a bridging electrode for electrically connecting adjacent touch electrodes.

4. A display substrate according to claim 3, wherein the light shielding layer comprises the first insulating layer.

5. The display substrate according to claim 3, wherein the light shielding layer includes the plurality of touch electrodes, or wherein the light shielding layer includes the first electrode layer and the second electrode layer.

6. A display substrate according to claim 3, further comprising a pixel defining layer provided with pixel openings in one-to-one correspondence with the sub-pixels; the first insulating layer is provided with through holes corresponding to the pixel openings one by one, and orthographic projection of the through holes on the substrate covers orthographic projection of the corresponding pixel openings on the substrate;

the first insulating layer is partially positioned between the first electrode layer and the second electrode layer, and coats the side part of the first electrode layer, and the first insulating layer comprises an insulating part arranged around the through hole; the side surface of the insulating part extends obliquely in a direction away from the substrate and away from the through hole; the touch control layer further comprises a second insulating layer which is positioned in the through hole and is in contact with the insulating part, and the refractive index of the second insulating layer is larger than that of the insulating part.

7. The display substrate according to claim 6, wherein a material of the second insulating layer is an organic material, and a material of the insulating portion is an organic material or an inorganic material; and/or the number of the groups of groups,

the material of the insulating part is the same as or different from the material of other parts of the insulating layer.

8. The display substrate of claim 1, wherein edges of orthographic projections of adjacent ones of the color resist elements on the substrate substantially coincide.

9. A display panel, characterized in that the display panel comprises the display substrate according to any one of claims 1 to 8.

10. A display device characterized in that the display device comprises the display panel according to claim 9.

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