Display panel and display device

Abstract

The invention relates to a display panel and a display device. The display panel comprises an array substrate, a cover plate, a plurality of color resistance blocks and a black matrix, the cover plate and the array substrate are oppositely arranged; the plurality of color resistance blocks are arranged on one side, close to the array substrate, of the cover plate; the black matrix is arranged on the side, close to the array substrate, of the cover plate, and the black matrix comprises shading parts arranged between the adjacent color resistance blocks; a groove is formed in the side, away from the cover plate, of the shading part, and part of the color resistance blocks are arranged on the side, away from the cover plate, of the shading part and located in the groove. According to the display panel, the spreading condition of the covering film layer on the color resistance block and the black matrix layer can be improved, the thickness uniformity of the covering film layer is improved, the influence of the non-uniform thickness of the covering film layer on the light emitting uniformity of the display panel is reduced, and the light emitting uniformity of the display panel is improved.

Description

Technical Field

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

[0002] Organic Light Emitting Diode (OLED) displays have many advantages, such as self-luminescence, low driving voltage, high luminous efficiency, short response time, high clarity and contrast, nearly 180° viewing angle, wide operating temperature range, flexible display and large-area full-color display, etc. They are widely used in the fields of display, lighting, smart wearables, etc.

[0003] The OLED display panel includes an array substrate, a packaging cover plate, and a filling glue layer located between the array substrate and the packaging cover plate, and a color film layer can be arranged on the packaging cover plate to achieve the effects of light filtering and anti-reflection. The color film layer includes multiple color resists and a black matrix layer arranged around the multiple color resists. The filling glue layer covers the multiple color resists and the black matrix layer. Among them, some color resists will extend onto the black matrix layer, and then the protrusion height at the overlapping position of the color resist and the black matrix layer is relatively large, resulting in poor spreading and thickness uniformity of the filling glue layer, thereby affecting the light uniformity of the display panel. Summary of the invention

[0004] The embodiments of the present application provide a display panel and a display device, which can improve the thickness uniformity of the filling glue, thereby improving the light uniformity of the display panel.

[0005] An embodiment of the present application provides a display panel, comprising:

[0006] An array substrate;

[0007] A cover plate, arranged opposite to the array substrate;

[0008] A plurality of color resist blocks are arranged on a side of the cover plate close to the array substrate;

[0009] A black matrix is ​​arranged on a side of the cover plate close to the array substrate, and the black matrix includes a light shielding portion arranged between adjacent color-resistance blocks;

[0010] A groove is formed on a side of the light shielding portion away from the cover plate, and a portion of the color blocking block is arranged on a side of the light shielding portion away from the cover plate and is located in the groove.

[0011] In one embodiment of the present application, the shading portion includes a first sub-portion arranged on the cover plate and a second sub-portion connected to the first sub-portion on a side away from the cover plate, and the second sub-portion protrudes from the surface of the first sub-portion on a side away from the cover plate to form the groove.

[0012] In one embodiment of the present application, the second sub-portion is arranged at an edge of the first sub-portion.

[0013] In an embodiment of the present application, the second sub-portion is spaced apart from an edge of the first sub-portion.

[0014] In one embodiment of the present application, the orthographic projection of the second sub-portion on the cover plate is located within the orthographic projection of the first sub-portion on the cover plate.

[0015] In one embodiment of the present application, the display panel also includes a filling glue arranged between the array substrate and the cover plate, the filling glue covers the plurality of color resistance blocks and the black matrix, and the step range of the filling glue away from the surface of one side of the cover plate is less than or equal to 1 micron.

[0016] In an embodiment of the present application, the difference between the maximum distance and the minimum distance between the surface of one side of the plurality of color resist blocks away from the cover plate and the cover plate is smaller than the thickness of the color resist blocks.

[0017] In one embodiment of the present application, the plurality of color-resistance blocks are divided into a plurality of color-resistance block groups arranged along a first direction, the color-resistance block groups include a plurality of the color-resistance blocks arranged along a second direction, and the first direction intersects with the second direction;

[0018] The shading portion is located between two adjacent color-resistance block groups, the groove extends along the second direction, and the color-resistance blocks in two adjacent color-resistance block groups extend to a side of the shading portion away from the cover plate and fill the groove.

[0019] In one embodiment of the present application, the plurality of color-resistance blocks are arranged in an array along the third direction and the fourth direction, the light-shielding portion is disposed between two adjacent color-resistance blocks along the third direction and between two adjacent color-resistance blocks along the fourth direction, and the third direction intersects the fourth direction;

[0020] The groove in the light shielding portion between two color resist blocks adjacent to each other along the third direction extends along the fourth direction, and the groove in the light shielding portion between two color resist blocks adjacent to each other along the fourth direction extends along the third direction.

[0021] According to the above-mentioned purpose of the present application, an embodiment of the present application further provides a display device, which includes the display panel.

[0022] The embodiments of the present application provide a display panel and a display device, wherein a groove is provided in a light-shielding portion of a black matrix so that a color-resistance block can be at least partially located in the groove at a position overlapping with the light-shielding portion, thereby effectively reducing the thickness of the color-resistance block at a position overlapping with the light-shielding portion, improving the flatness of the film layer, improving the coverage of the color-resistance block and the black matrix by the covering film layer on the color-resistance block and the black matrix, thereby improving the spreading of the covering film layer, improving the thickness uniformity of the covering film layer, reducing the influence of the covering film layer on the light output uniformity of the display panel due to the uneven thickness, and improving the light output uniformity of the display panel.

[0023] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0025] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same figure numbers represent the same parts in the following description.

[0026] Figure 1 A schematic diagram of the structure of a display panel provided by an embodiment;

[0027] Figure 2 A schematic diagram of the structure of a display panel provided in an embodiment of the present application;

[0028] Figure 3 A schematic diagram of the structure of a light shielding portion provided in an embodiment of the present application;

[0029] Figure 4 Another schematic diagram of the structure of a display panel provided in an embodiment of the present application;

[0030] Figure 5 Another structural schematic diagram of the light shielding portion provided in the embodiment of the present application;

[0031] Figure 6 A schematic diagram of the structure of a black matrix provided in an embodiment of the present application;

[0032] Figure 7 Another structural schematic diagram of a black matrix provided in an embodiment of the present application;

[0033] Figure 8 and Fig. 9A schematic diagram of the structure of a manufacturing process of a display panel provided in an embodiment of the present application.

[0034] Description of reference numerals:

[0035] 1. Array substrate; 2. Package cover; 3. Black matrix layer; 4. Color resist; 5. Filling glue layer;

[0036] 11. array substrate; 12. cover plate;

[0037] 20, color block; 200, color block group; 21, first color block; 22, second color block; 23, third color block;

[0038] 30, black matrix; 31, light shielding portion; 310, groove; 311, first sub-portion; 312, second sub-portion;

[0039] 40. Filling glue. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0041] Please refer to Figure 1 The OLED display panel includes an array substrate 1, a packaging cover plate 2 and a filling glue layer 5 located between the array substrate 1 and the packaging cover plate 2, and a color filter layer can be arranged on the packaging cover plate 2 to achieve the effects of light filtering and anti-reflection. The color filter layer includes a plurality of color resists 4 and a black matrix layer 3 arranged around the plurality of color resists 4. The filling glue layer 5 covers the plurality of color resists 4 and the black matrix layer 3; wherein, part of the color resists 4 extends onto the black matrix layer 3, and then the protrusion height at the overlapping position of the color resists 4 and the black matrix layer 3 is relatively large, resulting in poor spreading and thickness uniformity of the filling glue layer 5, thereby affecting the light uniformity of the display panel, for example, the problem of uneven display caused by differences in brightness and chromaticity at different viewing angles.

[0042] Please combine Figure 2 as well as Figure 3The embodiment of the present application provides a display panel, which includes an array substrate 11, a cover plate 12, a plurality of color-resistance blocks 20, and a black matrix 30. The cover plate 12 is arranged opposite to the array substrate 11; the plurality of color-resistance blocks 20 are arranged on a side of the cover plate 12 close to the array substrate 11; the black matrix 30 is arranged on a side of the cover plate 12 close to the array substrate 11, and the black matrix 30 includes a light shielding portion 31 arranged between adjacent color-resistance blocks 20.

[0043] A groove 310 is formed on a side of the light shielding portion 31 away from the cover plate 12 , and a portion of the color blocking block 20 is disposed on a side of the light shielding portion 31 away from the cover plate 12 and is located in the groove 310 .

[0044] During the implementation and application process, the embodiment of the present application opens the groove 310 in the shading portion 31 of the black matrix 30, so that the color resist block 20 can be at least partially located in the groove 310 at the position overlapping with the shading portion 31, so as to effectively reduce the thickness of the position where the color resist block 20 overlaps with the shading portion 31, improve the flatness of the film layer, improve the coverage of the color resist block 20 and the covering film layer on the black matrix 30 on the color resist block 20 and the black matrix 30, and then improve the spreading of the covering film layer, improve the thickness uniformity of the covering film layer, reduce the influence of the covering film layer on the light uniformity of the display panel due to the uneven thickness, and improve the light uniformity of the display panel.

[0045] Specifically, in some embodiments, the array substrate 11 may include a substrate and a thin film transistor layer disposed on the substrate, wherein the thin film transistor layer is located on a side of the substrate close to the cover plate 12. The substrate may be a hard substrate, such as a glass substrate; or the substrate may be a flexible substrate, such as a substrate formed of polyimide. When the substrate is a flexible substrate, the substrate may be formed of multiple sub-substrates with the same material, such as polyimide, and adjacent sub-substrates are bonded by bonding sub-layers.

[0046] In some embodiments, the thin film transistor layer includes a thin film transistor, which includes a semiconductor located on a substrate, and the semiconductor can be formed of polysilicon or a metal oxide (such as indium gallium zinc oxide). Among them, the semiconductor is divided into a channel region and a source region and a drain region formed on both sides of the channel region. The thin film transistor layer also includes a first gate insulating layer, and the first gate insulating layer covers the semiconductor. The thin film transistor also includes a first gate formed on the first gate insulating layer, and the first gate overlaps with the channel region. The first gate can be formed as a plurality of layers or a single layer including a low resistance material such as Al, Ti, Mo, Cu, Ni, or an alloy thereof, or a material with high corrosion resistance. The thin film transistor layer also includes a second gate insulating layer, and the second gate insulating layer covers the first gate. The thin film transistor also includes a second gate located on the second gate insulating layer, and the second gate overlaps with the first gate. The second gate can be formed as a plurality of layers or a single layer including a low resistance material such as Al, Ti, Mo, Cu, Ni, or an alloy thereof, or a material with high corrosion resistance. The thin film transistor layer also includes a first interlayer insulating layer formed on the second gate. The first interlayer insulating layer, the first gate insulating layer and the second gate insulating layer include a source contact hole and a drain contact hole, and the source region and the drain region are exposed through the source contact hole and the drain contact hole, respectively.

[0047] The thin film transistor also includes a source and a drain arranged in the same layer, both formed on the first interlayer insulating layer, the source electrode is connected to the source region through the source contact hole, and the drain electrode is connected to the drain region through the drain contact hole. Among them, the source and the drain can be multiple layers or a single layer formed by a low resistance material such as Al, Ti, Mo, Cu, Ni, or their alloys, or a material with high corrosion resistance. For example, the source and the drain can be a triple layer of Ti / Cu / Ti, Ti / Ag / Ti, Ti / Al / Ti or Mo / Al / Mo or other single or multilayer structures.

[0048] In some embodiments, the array substrate 11 may further include a planar layer located between the thin film transistor layer and the light emitting layer, wherein the planar layer covers the source electrode and the drain electrode.

[0049] In some embodiments, the display panel further comprises an anode layer located on a side of the planar layer away from the thin film transistor layer, the anode layer comprising a plurality of anodes, the anodes being arranged one by one with the pixel units. Each anode is electrically connected to the thin film transistor respectively. The planar layer comprises an anode contact hole, and the anode contacts the source or drain of the thin film transistor through the anode contact hole.

[0050] In some embodiments, the display panel further includes a pixel definition layer disposed on the array substrate 11, the pixel definition layer is disposed on a side of the planar layer away from the thin film transistor layer, and the pixel definition layer includes a pixel definition portion and an opening between the pixel definition portions. The display panel further includes a light emitting layer, the light emitting layer includes a plurality of pixel units. The pixel unit is located in the opening. The opening exposes a portion of the anode and covers the edge of the anode. The pixel unit may include a red pixel unit, a green pixel unit, and a blue pixel unit.

[0051] In some embodiments, the light-emitting layer may be an organic light-emitting layer or a quantum dot light-emitting layer, which is not limited herein.

[0052] In some embodiments, the display panel further includes a cathode layer, and the cathode layer covers the light-emitting layer. In the direction from the anode to the cathode layer, the light-emitting layer includes a hole-type organic layer, a light-emitting material layer, and an electronic organic layer stacked in sequence. The hole-type organic layer may include a hole injection layer and a hole transport layer, the hole injection layer is in direct contact with the anode, and the hole transport layer is located between the hole injection layer and the light-emitting material layer. The hole-type organic layer may also include an electron blocking layer located between the hole transport layer and the light-emitting material layer. The electronic organic layer may include an electron injection layer and an electron transport layer, the electron injection layer is in direct contact with the cathode layer, and the electron transport layer is located between the electron injection layer and the light-emitting material layer. The electronic organic layer may also include a hole blocking layer located between the electron transport layer and the light-emitting layer.

[0053] In some embodiments, the display panel may further include an encapsulation layer located on a side of the cathode layer away from the light emitting layer.

[0054] In some embodiments, the display panel further includes a filling glue 40 disposed between the cover plate 12 and the array substrate 11 , and the filling glue 40 covers the plurality of color resist blocks 20 and the black matrix 30 .

[0055] In some embodiments, the cover plate 12 and the filling glue 40 are arranged on the side of the packaging layer away from the array substrate 11, that is, the cover plate 12 and the filling glue 40 are arranged on the side of the light-emitting layer away from the array substrate 11, and the filling glue 40 is located between the array substrate 11 and the cover plate 12; it can be understood that the cover plate 12 and the filling glue 40 are located on the light-emitting side of the display panel, and therefore, the thickness uniformity of the filling glue 40 will have a greater impact on the light-emitting uniformity of the display panel.

[0056] It should be noted that a plurality of color resist blocks 20 and a black matrix 30 are disposed on a side of the cover plate 12 close to the array substrate 11 ; in some embodiments, the plurality of color resist blocks 20 and the black matrix 30 are disposed on a surface of a side of the cover plate 12 close to the array substrate 11 .

[0057] In some embodiments, the plurality of color block blocks 20 may include a first color block 21, a second color block 22 and a third color block 23. For example, the first color block 21 may be a red color block and is arranged in alignment with the red pixel unit, the second color block 22 may be a green color block and is arranged in alignment with the green pixel unit, and the third color block 23 may be a blue color block and is arranged in alignment with the blue pixel unit.

[0058] Furthermore, the black matrix 30 includes a shading portion 31 arranged between adjacent color resist blocks 20, the color resist blocks 20 are arranged on the cover plate 12, and partially extend to the side of the color resist block 20 adjacent to it away from the cover plate 12, and the two color resist blocks 20 located on opposite sides of the shading portion 31 can both extend to the shading portion 31, and can be connected or overlapped on the side of the shading portion 31 away from the cover plate 12; wherein the filling glue 40 covers the plurality of color resist blocks 20 and the black matrix 30, and therefore, the flatness of the film layers of the plurality of color resist blocks 20 and the black matrix 30 has a greater influence on the spreading of the filling glue 40.

[0059] In the embodiment of the present application, a groove 310 is provided on the side of the shading portion 31 away from the cover plate 12, and then during the manufacturing process, the color resistance block material can extend into the groove 310, so that the color resistance block 20 located on the side of the shading portion 31 away from the cover plate 12 is at least partially located in the groove 310, and then the thickness of the position where the color resistance block 20 overlaps with the shading portion 31 can be effectively reduced, the flatness of the film layer is improved, the coverage of the filling glue 40 on the color resistance block 20 and the black matrix 30 is improved, and then the spreading of the filling glue 40 is improved, the thickness uniformity of the filling glue 40 is improved, the influence of the filling glue 40 on the light uniformity of the display panel due to the uneven thickness is reduced, and the light uniformity of the display panel is improved.

[0060] In some embodiments, the shading portion 31 includes a first sub-portion 311 disposed on the cover plate 12 and a second sub-portion 312 connected to the first sub-portion 311 on a side away from the cover plate 12, and the second sub-portion 312 protrudes from the surface of the first sub-portion 311 on a side away from the cover plate 12 to form the groove 310.

[0061] In some embodiments, the filling glue 40 covers the first sub-portion 311 and the side of the second sub-portion 312 away from the cover plate 12. When the thickness of the color resistance block 20 located in the groove 310 is less than the depth of the groove 310, the filling glue 40 can also be filled in the groove 310.

[0062] In some embodiments, the thickness of the shading portion 31 is greater than or equal to 2 microns and less than or equal to 3 microns. For example, the thickness of the first sub-portion 311 may be 2 microns, and the thickness of the second sub-portion 312 may be 1 micron. Thus, the maximum thickness of the shading portion 31 is 3 microns and the minimum thickness is 2 microns.

[0063] In some embodiments, the width of the shading portion 31 can be greater than or equal to 5 microns and less than or equal to 10 microns; the width of the second sub-portion 312 can be greater than or equal to 1 micron and less than or equal to 3 microns; wherein, the width of the second sub-portion 312 cannot be too large, otherwise the area and volume of the groove 310 will be too small to effectively accommodate the color resist material.

[0064] In some embodiments, the distance between the cover plate 12 and the array substrate 11 is greater than or equal to 5 micrometers and less than or equal to 10 micrometers.

[0065] In some embodiments, the step difference range of the surface of the side of the filling glue 40 away from the cover plate 12 is less than or equal to 1 micron; that is, by setting the groove 310, the embodiment of the present application can effectively improve the flatness of the film layer of the multiple color resistance blocks 20 and the black matrix 30, thereby improving the coverage of the filling glue 40, improving the thickness uniformity of the filling glue 40, reducing the step difference of the filling glue 40 on the side away from the cover plate 12, and reducing the influence of the filling glue 40 on the light uniformity of the display panel due to the uneven thickness.

[0066] In some embodiments, a surface of the filling glue 40 away from the cover plate 12 is a plane.

[0067] In some embodiments, the difference between the maximum distance and the minimum distance between the surface of one side of the plurality of color blocks 20 away from the cover plate 12 and the cover plate 12 is less than the thickness of the color block 20; Figure 1 As for the display panel shown, the color resist block 20 located on the side of the light shielding portion 31 away from the cover plate 12 is at least partially located in the groove 310. Therefore, the top of the color resist block 20 located on the side of the light shielding portion 31 away from the cover plate 12 will sink for a distance to reduce the step difference between the color resist block 20 located on the side of the light shielding portion 31 away from the cover plate 12 and the other color resist blocks 20.

[0068] Please continue to refer to Figure 2 as well as Figure 3 In one embodiment of the present application, the second sub-portion 312 is arranged at the edge of the first sub-portion 311 .

[0069] Among them, a side surface of the second sub-portion 312 away from the center of the groove 310 is flush with the side surface of the first sub-portion 311, thereby effectively increasing the area and volume of the groove 310, and accommodating more color-resistance material, so as to further reduce the thickness of the color-resistance block 20 located on the side of the shading portion 31 away from the cover plate 12.

[0070] In some embodiments, the orthographic projection of the second sub-portion 312 on the cover plate 12 is located within the orthographic projection of the first sub-portion 311 on the cover plate 12; to avoid the side of the second sub-portion 312 exceeding the side of the first sub-portion 311, it is possible to avoid the side of the shading portion 31 from forming an undercut structure and affecting the film morphology and thickness uniformity of the color resist block 20.

[0071] Please refer to Figure 4 and Figure 5 In another embodiment of the present application, the second sub-portion 312 is spaced apart from the edge of the first sub-portion 311, that is, a step structure is formed at the edge of the shading portion 31, so that the thickness of the shading portion 31 at the edge is gradually increased, which can prevent the color block 20 from climbing too high at the edge of the shading portion 31 and breaking or failing to cover.

[0072] Please combine Figure 2 , Figure 3 as well as Figure 6 In one embodiment of the present application, the plurality of color resist blocks 20 are divided into a plurality of color resist block groups 200 arranged along a first direction X, and the color resist block group 200 includes a plurality of color resist blocks 20 arranged along a second direction Y, and the first direction X intersects with the second direction Y.

[0073] In some embodiments, the first direction X and the second direction Y are perpendicular to each other.

[0074] The shading portion 31 is located between two adjacent color-resistance block groups 200 and extends along the second direction Y, the groove 310 extends along the second direction Y, and the color-resistance blocks 20 in two adjacent color-resistance block groups 200 extend to a side of the shading portion 31 away from the cover plate 12 and fill the groove 310.

[0075] Please combine Figure 2 , Figure 3 as well as Figure 7 In another embodiment of the present application, the plurality of color resist blocks 20 are arranged in an array along the third direction M and the fourth direction N, the shading portion 31 is disposed between two adjacent color resist blocks 20 along the third direction M and between two adjacent color resist blocks 20 along the fourth direction N, and the third direction M intersects with the fourth direction N.

[0076] In some embodiments, the third direction M and the fourth direction N are perpendicular to each other.

[0077] In which, the black matrix 30 is arranged around the plurality of color resist blocks 20, and some of the color resist blocks 20 extend to a side of the surrounding black matrix 30 away from the cover plate 12; further, the groove 310 in the shading portion 31 between two adjacent color resist blocks 20 along the third direction M extends along the fourth direction N, and the groove 310 in the shading portion 31 between two adjacent color resist blocks 20 along the fourth direction N extends along the third direction M.

[0078] In some embodiments, the groove 310 extending along the third direction M and the groove 310 extending along the fourth direction N are connected to increase the volume of the groove 310 to accommodate more of the color resist material, thereby further reducing the thickness of the color resist block 20 located on the side of the shading portion 31 away from the cover plate 12.

[0079] In addition, in the manufacturing process of the display panel, a black matrix 30 may be formed on the cover plate 12, that is, a light shielding portion 31 may be formed. Specifically, a first sub-portion 311 may be formed on the cover plate 12. Figure 8 shown.

[0080] Then, a second sub-portion 312 is formed on the first sub-portion 311 and protrudes from the surface of the first sub-portion 311, so as to form the groove 310 on the side of the light shielding portion 31 away from the cover plate 12. Fig. 9 shown.

[0081] Next, the first color block 21 , the second color block 22 and the third color block 23 are sequentially formed on the cover plate 12 by a photolithography process to form a plurality of the color blocks 20 , and at least a portion of the color blocks 20 are located in the groove 310 .

[0082] Furthermore, a filling glue material is formed on the cover plate 12 and a UV frame glue material is coated on the edge of the cover plate 12 , and the filling glue material covers the plurality of color resist blocks 20 and the black matrix 30 .

[0083] Then, the cover plate 12 and the array substrate 11 are assembled and bonded together to obtain the display panel.

[0084] It should be noted that the first sub-portion 311 and the second sub-portion 312 can be prepared by patterning in two steps, or after depositing the black matrix material, the shading portion 31 with differentiated thickness can be obtained through a semi-transparent mask to form the first sub-portion 311 and the second sub-portion 312.

[0085] In some embodiments, the display panel includes a display area and a non-display area adjacent to the display area, and the black matrix 30 can be arranged in the display area with reference to the structure described in the above embodiments, and the black matrix 30 can be arranged on the entire surface in the non-display area to play a shielding and anti-reflection role.

[0086] As mentioned above, in the embodiment of the present application, the groove 310 is opened in the shading portion 31 of the black matrix 30, so that the color resist block 20 can be at least partially located in the groove 310 at the position overlapping with the shading portion 31, so as to effectively reduce the thickness of the color resist block 20 at the position overlapping with the shading portion 31, improve the flatness of the film layer, improve the coverage of the filling glue 40 on the color resist block 20 and the black matrix 30, and further improve the spreading of the filling glue 40, improve the thickness uniformity of the filling glue 40, reduce the influence of the filling glue 40 on the light uniformity of the display panel due to the uneven thickness, and improve the light uniformity of the display panel.

[0087] In addition, an embodiment of the present application further provides a display device, which includes the display panel described in the above embodiment.

[0088] It can be understood that, since the display device has the same display panel as that in the above embodiment, the display device has the same beneficial effects as the display panel described in the above embodiment, which will not be described in detail herein.

[0089] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0090] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0091] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0092] The above are only preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A display panel, characterized in that: include: An array substrate; A cover plate, arranged opposite to the array substrate; A plurality of color resist blocks are arranged on a side of the cover plate close to the array substrate; A black matrix is ​​arranged on a side of the cover plate close to the array substrate, and the black matrix includes a light shielding portion arranged between adjacent color-resistance blocks; A groove is formed on a side of the light shielding portion away from the cover plate, and a portion of the color blocking block is arranged on a side of the light shielding portion away from the cover plate and is located in the groove.

2. The display panel according to claim 1, characterized in that: The shading portion includes a first sub-portion disposed on the cover plate and a second sub-portion connected to a side of the first sub-portion away from the cover plate, wherein the second sub-portion protrudes from a surface of the first sub-portion away from the cover plate to form the groove.

3. The display panel according to claim 2, characterized in that: The second sub-portion is arranged at an edge of the first sub-portion.

4. The display panel according to claim 2, characterized in that: The second sub-portion is spaced apart from an edge of the first sub-portion.

5. The display panel according to claim 2, characterized in that: The orthographic projection of the second sub-portion on the cover plate is located within the orthographic projection of the first sub-portion on the cover plate.

6. The display panel according to claim 1, characterized in that: The display panel further includes a filling glue disposed between the array substrate and the cover plate, the filling glue covers the plurality of color blocks and the black matrix, and a step range of a surface of a side of the filling glue away from the cover plate is less than or equal to 1 micron.

7. The display panel according to claim 1, characterized in that: The difference between the maximum distance and the minimum distance between the surface of one side of the plurality of color resist blocks away from the cover plate and the cover plate is smaller than the thickness of the color resist blocks.

8. The display panel according to any one of claims 1 to 7, characterized in that: The plurality of color-resistance blocks are divided into a plurality of color-resistance block groups arranged along a first direction, the color-resistance block groups include a plurality of color-resistance blocks arranged along a second direction, and the first direction intersects the second direction; The shading portion is located between two adjacent color-resistance block groups, the groove extends along the second direction, and the color-resistance blocks in two adjacent color-resistance block groups extend to a side of the shading portion away from the cover plate and fill the groove.

9. The display panel according to any one of claims 1 to 7, characterized in that: The plurality of color-resistance blocks are arranged in an array along a third direction and a fourth direction, the light-shielding portion is disposed between two adjacent color-resistance blocks along the third direction and between two adjacent color-resistance blocks along the fourth direction, and the third direction intersects the fourth direction; The groove in the light shielding portion between two color resist blocks adjacent to each other along the third direction extends along the fourth direction, and the groove in the light shielding portion between two color resist blocks adjacent to each other along the fourth direction extends along the third direction.

10. A display device, characterized in that: The display device comprises the display panel according to any one of claims 1 to 9.

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