Display panel and display device

Abstract

The present disclosure relates to the technical field of display, and provides a display panel and a display device. The display panel of the present disclosure comprises a base substrate; a plurality of pixel units disposed on the base substrate, each pixel unit comprising at least one first light-emitting device and one second light-emitting device; and a color filter layer disposed on the sides of the pixel units away from the base substrate, wherein the color filter layer comprises a plurality of color filters and a black matrix disposed between the color filters; the plurality of color filters include first color filters disposed corresponding to the first light-emitting devices and second color filters disposed corresponding to the second light-emitting devices; the black matrix comprises openings arranged in one-to-one correspondence with the color filters; and each of the second color filters located in the openings comprises a first filter portion and a second filter portion, the second filter portion surrounds the first filter portion, and the central thickness of the first filter portion in a direction away from the base substrate is greater than the central thickness of the second filter portion in the direction away from the base substrate.

Description

Display panel and display device TECHNICAL FIELD

[0001] The present disclosure belongs to the technical field of display, and particularly relates to a display panel and a display device. BACKGROUND

[0002] With the continuous development of display technology, display screens are applied more and more widely. In different application scenarios, users may wish to share information and may also wish to have privacy, so a display screen is proposed to be switchable between privacy and sharing.

[0003] SUMMARY

[0004] The present disclosure provides a display panel and a display device.

[0005] In a first aspect, the present disclosure provides a display panel, comprising a substrate substrate;

[0006] a plurality of pixel units disposed on the substrate substrate, each pixel unit comprising at least one first light-emitting device and one second light-emitting device;

[0007] a color filter layer disposed on a side of the pixel unit away from the substrate substrate; the color filter layer comprises a plurality of color filters and a black matrix disposed between the color filters; the plurality of color filters comprises a first color filter disposed corresponding to the first light-emitting device, and a second color filter disposed corresponding to the second light-emitting device;

[0008] The black matrix comprises an opening corresponding to each color filter, and the second color filter located in the opening comprises a first filter part and a second filter part, the second filter part surrounds the first filter part, and the central thickness of the first filter part in the direction away from the substrate substrate is greater than the central thickness of the second filter part in the direction away from the substrate substrate.

[0009] In some embodiments, the first filter part comprises a first surface away from the substrate substrate, and the second filter part comprises a second surface away from the substrate substrate.

[0010] The first surface is farther away from the substrate substrate than the second surface, and both the first surface and the second surface are flat planes.

[0011] In some embodiments, the second color filter located in the opening further comprises a third filter part, the third filter part is disposed on a side of the second filter part away from the first filter part in a first direction, and the central thickness of the third filter part in the direction away from the substrate substrate is less than the central thickness of the second filter part in the direction away from the substrate substrate.

[0012] In some embodiments, the first filter portion comprises a first surface facing away from the substrate, the second filter portion comprises a second surface facing away from the substrate, and the third filter portion comprises a fifth surface facing away from the substrate;

[0013] The first surface is farther away from the substrate than the second surface, the second surface is farther away from the substrate than the fifth surface, and the first surface, the second surface, and the fifth surface are all flat surfaces.

[0014] In some embodiments, the first filter portion comprises a first surface facing away from the substrate, the second filter portion comprises a second surface facing away from the substrate, and the third filter portion comprises a fifth surface facing away from the substrate; the first surface, the second surface, and the fifth surface are coplanar, and are connected as a flat surface.

[0015] The first filter portion further comprises a third surface close to the substrate, the second filter portion comprises a fourth surface close to the substrate, and the third filter portion comprises a sixth surface close to the substrate; the third surface is closer to the substrate than the fourth surface, the fourth surface is closer to the substrate than the sixth surface, and the third surface, the fourth surface, and the sixth surface are all flat surfaces.

[0016] In some embodiments, the display panel further comprises a first protective layer disposed between the color filter layer and the pixel unit;

[0017] The first protective layer comprises a first protective structure located in the opening; the first protective structure comprises a first recess, a first protrusion for defining the first recess, and a second protrusion disposed around the first protrusion; a portion of the first filter portion is located in the first recess, and another portion protrudes from the first recess along a side facing away from the substrate; the second filter portion abuts the first protrusion, and the third filter portion abuts the second protrusion.

[0018] In some embodiments, the display panel further comprises a second protective layer disposed between the first protective layer and the pixel unit;

[0019] The second protective layer comprises a second protective structure corresponding to the second color filter; the second protective structure comprises a second recess, a third protrusion for defining the second recess, and a fourth protrusion disposed around the third protrusion.

[0020] A normal projection of the first filter portion on the substrate falls within an edge contour of a normal projection of the second recess on the substrate.

[0021] A normal projection of the second filter portion on the substrate substrate falls within a normal projection of the third convex portion on the substrate substrate;

[0022] A normal projection of the third filter portion on the substrate substrate falls within a normal projection of the fourth convex portion on the substrate substrate.

[0023] In some embodiments, the first filter portion comprises a first surface facing away from the substrate substrate, the second filter portion comprises a second surface facing away from the substrate substrate; the first surface and the second surface are coplanar and are flat surfaces;

[0024] The first filter portion further comprises a third surface close to the substrate substrate, the second filter portion comprises a fourth surface close to the substrate substrate; the third surface is closer to the substrate substrate than the fourth surface, and the third surface and the fourth surface are both flat surfaces.

[0025] In some embodiments, the display panel further comprises a first protective layer disposed between the color filter layer and the pixel unit;

[0026] The first protective layer comprises a first protective structure located in the opening; the first protective structure comprises a first recess and a first convex portion for defining the first recess; at least part of the first filter portion is located in the first recess, and the second filter portion abuts against the first convex portion.

[0027] In some embodiments, the second color filter located in the opening further comprises a fourth filter portion, the fourth filter portion is disposed on a side of the second filter portion away from the first filter portion along a first direction, and a central thickness of the fourth filter portion in a direction away from the substrate substrate is greater than a central thickness of the second filter portion in the direction away from the substrate substrate.

[0028] In some embodiments, the first filter portion comprises a first surface facing away from the substrate substrate, the second filter portion comprises a second surface facing away from the substrate substrate, and the fourth filter portion comprises a seventh surface facing away from the substrate substrate; the first surface, the second surface, and the seventh surface are all arc surfaces.

[0029] The thickness of the first filter portion gradually decreases in a direction from the center to the edge; the thickness of the second filter portion gradually decreases in a direction away from the first filter portion.

[0030] In some embodiments, the first filter portion comprises a first surface facing away from the substrate substrate, the second filter portion comprises a second surface facing away from the substrate substrate, and the fourth filter portion comprises a seventh surface facing away from the substrate substrate;

[0031] The first surface comprises a first sub-surface and a second sub-surface, the second sub-surface connects the first sub-surface and the second surface, the first sub-surface and the second surface are flat planes, and the second sub-surface and the seventh surface are arc surfaces.

[0032] In some embodiments, the first filter part comprises a first surface facing away from the substrate, the second filter part comprises a second surface facing away from the substrate, and the fourth filter part comprises a seventh surface facing away from the substrate; the first surface, the second surface, and the seventh surface are connected to form an arc surface.

[0033] The first filter part further comprises a third surface close to the substrate, and the second filter part comprises a fourth surface close to the substrate; the third surface and the fourth surface are arc surfaces.

[0034] In some embodiments, the fourth filter part comprises an eighth surface close to the substrate.

[0035] The eighth surface comprises a third sub-surface and a fourth sub-surface, the third sub-surface connects the fourth sub-surface and the fourth surface; the third sub-surface is an arc surface; the fourth sub-surface is a flat plane; or,

[0036] The eighth surface is a flat plane and is flush with the surface of the black matrix close to the substrate.

[0037] In some embodiments, the display panel further comprises a reflective structure; the reflective structure is arranged in the opening corresponding to the second color filter and attached to the side wall of the opening; and the fourth filter part wraps the reflective structure.

[0038] In some embodiments, the first filter part comprises a first surface facing away from the substrate, the second filter part comprises a second surface facing away from the substrate.

[0039] Any point on the first surface to the line between the light-emitting center point of the second light-emitting device is a first line; the included angle between the first line and the reference line extending in the direction away from the substrate is within [0°, 15°];

[0040] At least some points on the second surface to the line between the light-emitting center point of the second light-emitting device are a second line; the included angle between the second line and the reference line extending in the direction away from the substrate is within (15°, 60°].

[0041] In some embodiments, the central thickness of the first filter part is between 3um and 4um; the central thickness of the second filter part is between 0.5um and 2um.

[0042] In some embodiments, the first filter part comprises a first surface facing away from the substrate substrate, the second filter part comprises a second surface facing away from the substrate substrate, and the third filter part comprises a third surface facing away from the substrate substrate.

[0043] Any point on the first surface to the light-emitting center point of the second light-emitting device is a first line; the included angle between the first line and the reference line extending in the direction away from the substrate substrate is within [0°, 15°];

[0044] Any point on the second surface to the light-emitting center point of the second light-emitting device is a second line; the included angle between the second line and the reference line extending in the direction away from the substrate substrate is within (15°, 45°];

[0045] At least a part of the third surface to the light-emitting center point of the second light-emitting device is a third line; the included angle between the second line and the reference line extending in the direction away from the substrate substrate is within (15°, 60°].

[0046] In some embodiments, the central thickness of the first filter part is between 3um and 4um; the central thickness of the second filter part is between 2um and 3um; and the central thickness of the third filter part is between 0.5um and 2um.

[0047] In a second aspect, the embodiments of the present disclosure further provide a display device comprising the display panel according to any one of the first aspect. BRIEF DESCRIPTION OF DRAWINGS

[0048] FIG. 1 is a schematic diagram of a display panel of the related art;

[0049] FIG. 1 is a schematic diagram of a display panel according to Example 1 provided by the embodiments of the present disclosure;

[0050] FIG. 2 is a schematic diagram of a display panel according to Example 2 provided by the embodiments of the present disclosure;

[0051] FIG. 3 is a schematic diagram of a display panel according to Example 3 provided by the embodiments of the present disclosure;

[0052] FIG. 4 is a schematic diagram of a display panel according to Example 4 provided by the embodiments of the present disclosure;

[0053] FIG. 5 is a schematic diagram of a display panel according to Example 5 provided by the embodiments of the present disclosure;

[0054] FIG. 6 is a schematic diagram of a display panel according to Example 6 provided by embodiments of the present disclosure;

[0055] FIG. 7 is a schematic diagram of a display panel according to Example 7 provided by embodiments of the present disclosure;

[0056] FIG. 8 is a schematic diagram of a display panel according to Example 8 provided by embodiments of the present disclosure;

[0057] FIG. 9 is a schematic diagram of a display panel according to Example 9 provided by embodiments of the present disclosure;

[0058] FIG. 10 is a schematic diagram of a display panel according to Example 10 provided by embodiments of the present disclosure;

[0059] FIG. 11 is a schematic diagram of a display panel according to Example 11 provided by embodiments of the present disclosure;

[0060] FIG. 12 is a schematic diagram of a display panel according to Example 12 provided by embodiments of the present disclosure;

[0061] FIG. 13 is a process diagram for preparing a second color filter according to Example 2 provided by embodiments of the present disclosure. DETAILED DESCRIPTION

[0062] In order to make the objects, technical solutions, and advantages of the embodiments of the present disclosure clearer, the following will be combined with the accompanying drawings for the embodiments of the present disclosure to make a clear and complete description of the technical solutions of the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. The components of the embodiments of the present disclosure described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present disclosure provided in the accompanying drawings is not intended to limit the scope of the claimed present disclosure, but only represents selected embodiments of the present disclosure. Based on the embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present disclosure.

[0063] Unless otherwise defined, technical terms or scientific terms used in the present disclosure shall have the same meaning as commonly understood by one of ordinary skill in the art to which the present disclosure belongs. Unless otherwise defined, the technical terms or scientific terms used in the present disclosure shall have the same meaning as commonly understood by one of ordinary skill in the art to which the present disclosure belongs. The terms "first", "second" and similar terms used in the present disclosure do not represent any order, number or importance, but are only used to distinguish different components. Similarly, the terms "one", "an" or "the" and similar terms do not represent a quantitative limitation, but represent the existence of at least one. The terms "including", "containing" and similar terms mean that the elements or objects before the terms encompass the elements or objects listed after the terms and their equivalents, and do not exclude other elements or objects. The terms "connected" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "up", "down", "left", "right" and the like are only used to represent relative positional relationships, and when the absolute positions of the described objects change, the relative positional relationships may also change accordingly.

[0064] In the present disclosure, "a plurality of or several" refers to two or more. The term "and / or" describes the association relationship between the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent three cases: A exists alone, A and B exist together, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after it.

[0065] In order to realize the switchable display screen peep-proof and sharing, the whole pixel area is divided into a peep-proof pixel area and a sharing pixel area. The sharing pixel area includes sharing pixels; the peep-proof pixel area includes peep-proof pixels; the sharing pixels and the peep-proof pixels are in the same layer, the pixel opening of the sharing pixels is larger than the pixel opening of the peep-proof pixels; the normal projection of the sharing color filter opposite to the sharing pixels on the substrate covers the normal projection of the sharing pixels on the substrate, and the normal projection of the peep-proof color filter opposite to the peep-proof pixels on the substrate covers the normal projection of the peep-proof pixels on the substrate. The sharing color filter and the peep-proof color filter are in the same layer, the opening of the black matrix corresponding to the sharing color filter is larger than the opening of the black matrix corresponding to the peep-proof color filter, so that, in the case that the emergent light of the sharing pixels and the peep-proof pixels reaches the color filter at the same height, the opening of the black matrix corresponding to the sharing color filter is larger than the opening of the black matrix corresponding to the peep-proof color filter, which means that the emergent light angle of the emergent light of the sharing pixels irradiated to the edge of the sharing color filter is larger than the emergent light angle of the emergent light of the peep-proof pixels irradiated to the edge of the peep-proof color filter. The so-called "emergent light angle" refers to the angle between the emergent light and the vertical direction Y of the display screen. When the sharing mode is turned on, at least the pixels in the sharing pixel area are lighted, the emergent light angle of the sharing pixel area is large, and the emergent light can be observed on the side and the front of the display screen, so that the front user and the sharing user on the side of the display screen can watch the display screen, and information sharing is realized. When the peep-proof mode is turned on, only the pixels in the peep-proof pixel area are lighted, the emergent light angle of the peep-proof pixel area is small, and only the emergent light on the front of the display screen can be observed, and the emergent light on the side of the display screen cannot be observed, so that only the front user can watch the display screen, and peep-proof is realized.

[0066] In the sharing mode, users have different minimum brightness requirements for different emergent light angles. The related art often increases the current to increase the brightness corresponding to different emergent light angles, otherwise the brightness decays too fast, and the sharing user on the side of the screen cannot watch normally. However, the increase of the current often reduces the service life of the device.

[0067] Therefore, the display panel provided by the embodiments of the present disclosure substantially changes the topography of the color filter in the sharing area, so that the brightness decay of the emergent light in the sharing area is reduced as the emergent light angle increases, the viewing requirement of the sharing user on the side of the screen in the sharing mode is met, and the working current of the light-emitting device does not need to be increased, thereby prolonging the service life of the screen.

[0068] FIG. 1 is a schematic diagram of a display panel according to an embodiment of the present disclosure. As shown in FIG. 1, the display panel includes a substrate 1, a plurality of pixel units disposed on the substrate 1, and a color filter layer 3 disposed on a side of the pixel units away from the substrate 1. Each pixel unit includes at least one first light emitting device 21 and one second light emitting device 22. A pixel unit includes light emitting devices of one color; for example, the at least one first light emitting device 21 and the one second light emitting device 22 in a red pixel unit are both red light emitting devices; the at least one first light emitting device 21 and the one second light emitting device 22 in a green pixel unit are both green light emitting devices; and the at least one first light emitting device 21 and the one second light emitting device 22 in a blue pixel unit are both blue light emitting devices. The anodes of the first light emitting device 21 and the second light emitting device 22 in each pixel unit are spaced apart, and each is driven to emit light by a different pixel driving circuit. Alternatively, the anodes of a plurality of first light emitting devices 21 in one pixel unit can be shared. The structure of the light emitting layer EL of the light emitting device is shown in the diagram.

[0069] Alternatively, in the privacy mode, the first light emitting device 21 emits light, and the second light emitting device 22 does not emit light. In the sharing mode, the second light emitting device 22 emits light, and the first light emitting device 21 does not emit light. Alternatively, in the sharing mode, the second light emitting device 22 emits light, and the first light emitting device 21 emits light.

[0070] The color filter layer 3 includes a plurality of color filters and a black matrix BM disposed between the color filters; the plurality of color filters includes a first color filter 31 disposed corresponding to the first light emitting device 21, and a second color filter 32 disposed corresponding to the second light emitting device 22. The first color filter 31 is used to filter light emitted by the first light emitting device 21, and the second color filter 32 is used to filter light emitted by the second light emitting device 22. The orthographic projection of the first color filter 31 on the substrate 1 covers the orthographic projection of the first light emitting device 21 on the substrate 1; the orthographic projection of the second color filter 32 on the substrate 1 covers the orthographic projection of the second light emitting device 22 on the substrate 1, ensuring light emission efficiency. Here, the orthographic projection of the light emitting device on the substrate 1 can be understood as the orthographic projection on the substrate 1 of the area defined by the pixel opening on the pixel definition layer PDL.

[0071] The black matrix BM includes an opening V corresponding to each color filter, and the second color filter 32 within the opening V includes a first filter part 321 and a second filter part 322, the second filter part 322 surrounds the first filter part 321, and the central thickness H1 of the first filter part 321 in the direction away from the substrate 1 (Y direction) is greater than the central thickness H2 of the second filter part 322 in the direction away from the substrate 1.

[0072] It should be noted that the "center thickness" can be understood as the thickness of the center position of the first filter part 321 (or the second filter part 322). The "thickness" refers to the distance in the vertical direction H of the substrate substrate 1.

[0073] Optionally, the color filter is at least partially located in the opening V corresponding thereto. As shown in FIG. 1, a part of the first color filter 31 is located in the opening V corresponding thereto, and another part is located on the surface of the black matrix BM away from the substrate substrate 1. The second color filter 32 is completely located in the opening V corresponding thereto.

[0074] The first filter part 321 and the second filter part 322 are connected as an integrated structure, and the materials of the two are the same.

[0075] Optionally, the extension direction of the line connecting the center of the first color filter 31 and the light-emitting center of the first light-emitting device 21 is perpendicular to the substrate substrate 1. The extension direction of the line connecting the center O1 of the second color filter 32 and the light-emitting center O1 of the second light-emitting device 22 is perpendicular to the substrate substrate 1. The center of the first filter part 321 is the center of the second color filter 32.

[0076] In the embodiments of the present disclosure, the second filter part 322 surrounds the first filter part 321, and the center thickness H1 of the first filter part 321 in the direction away from the substrate substrate 1 is greater than the center thickness H2 of the second filter part 322 in the direction away from the substrate substrate 1. Because the transmittance of the color filter with different thicknesses is different, for example, the thinner the color filter, the higher the transmittance. Therefore, in the sharing mode, the present disclosure utilizes the topography characteristics of the second color filter 32, which is high in the middle and low around, to make the luminance attenuation of the exiting light in the sharing area decrease as the angle of the exiting light increases, thereby meeting the viewing needs of the screen side sharing user in the sharing mode; at the same time, compared with the related art of increasing the current, the present disclosure does not need to increase the working current of the light-emitting device, thereby prolonging the service life of the light-emitting device.

[0077] In some embodiments, as shown in FIG. 1, the first filter part 321 and the second filter part 322 form a one-level stepped structure.

[0078] Specifically, the first filter part 321 includes a first surface S1 away from the substrate substrate 1, and the second filter part 322 includes a second surface S2 away from the substrate substrate 1; the first surface S1 is farther away from the substrate substrate 1 than the second surface S2, and both the first surface S1 and the second surface S2 are flat planes.

[0079] Optionally, as shown in FIG. 1, the first surface S1 and the second surface S2 can be connected by a vertical plane transition. Of course, the first surface S1 and the second surface S2 can also be connected by a transition of an inclined surface, a curved surface, a multi-segment rough surface, etc.

[0080] Optionally, the second surface S2 is flush with the surface of the substrate substrate 1 away from the black matrix BM, reducing reflectivity. Of course, the second surface S2 can also be higher than the surface of the substrate substrate 1 away from the black matrix BM. Alternatively, the second surface S2 can also be lower than the surface of the substrate substrate 1 away from the black matrix BM.

[0081] Optionally, the second filter part 322 protrudes from the black matrix BM, and the second filter part 322 overlaps the side of the black matrix BM away from the substrate substrate 1 in the first direction X away from the edge of the first filter part 321.

[0082] In this embodiment, the first filter part 321 is protrudingly arranged in the direction away from the substrate substrate 1 compared to the second filter part 322, and the two form a one-level step structure, so that the second color filter 32 realizes the topography feature of high in the middle and low around, which can make the brightness attenuation of the outcoming light in the shared area decrease with the increase of the outcoming light angle.

[0083] In some embodiments, FIG. 2 is a schematic diagram of a display panel under Example 2 provided by the embodiments of the present disclosure, as shown in FIG. 2, the second color filter 32 located in the opening V further includes a third filter part 323, the third filter part 323 is arranged on the side of the second filter part 322 away from the first filter part 321 in the first direction X, and the center thickness H3 of the third filter part 323 in the direction away from the substrate substrate 1 is less than the center thickness H2 of the second filter part 322 in the direction away from the substrate substrate 1.

[0084] Optionally, the orthographic projection of the second color filter 32 on the substrate substrate 1 and the orthographic projection of the opening V corresponding thereto on the substrate substrate 1 coincide. The first filter part 321, the second filter part 322 and the third filter part 323 are connected as an integrated structure, and the materials of the three are the same.

[0085] Optionally, the orthographic projection of each of the first filter part 321, the second filter part 322 and the third filter part 323 on the substrate substrate 1 respectively coincides with the orthographic projection of the opening V on the substrate substrate 1.

[0086] Compared with the above-mentioned Example 1, the third filter part 323 is added in this embodiment; in the case that the center thickness H3 of the third filter part 323 is less than the center thickness H2 of the second filter part 322, combined with the center thickness H2 of the second filter part 322 being less than the center thickness H1 of the first filter part 321, the topography feature of the second color filter 32 of high in the middle and decreasing thickness from the middle to the edge is further refined, which can make the brightness attenuation of the outcoming light in the shared area decrease with the increase of the outcoming light angle.

[0087] In some embodiments, as shown in FIG. 2, the first filter part 321, the second filter part 322 and the third filter part 323 form a two-level step structure.

[0088] Specifically, the first light filtering part 321 comprises a first surface S1 facing away from the substrate 1, the second light filtering part 322 comprises a second surface S2 facing away from the substrate 1, and the third light filtering part 323 comprises a fifth surface S5 facing away from the substrate 1; the first surface S1 is farther away from the substrate 1 than the second surface S2, the second surface S2 is farther away from the substrate 1 than the fifth surface S5, and the first surface S1, the second surface S2 and the fifth surface S5 are all flat surfaces.

[0089] Optionally, as shown in FIG. 2, the first surface S1 and the second surface S2 can be connected by a vertical plane. Of course, the first surface S1 and the second surface S2 can also be connected by an inclined surface, a curved surface, a multi-segment uneven surface, etc.

[0090] Optionally, as shown in FIG. 2, the second surface S2 and the fifth surface S5 can be connected by a vertical plane. Of course, the second surface S2 and the fifth surface S5 can also be connected by an inclined surface, a curved surface, a multi-segment uneven surface, etc.

[0091] Optionally, the second surface S2 is flush with the surface of the black matrix BM facing away from the substrate 1, which can reduce reflectivity. Of course, the second surface S2 can also be higher than the surface of the black matrix BM facing away from the substrate 1. Alternatively, the second surface S2 can also be lower than the surface of the black matrix BM facing away from the substrate 1.

[0092] Optionally, the fifth surface S5 is flush with the surface of the black matrix BM facing away from the substrate 1, which can reduce reflectivity. When the fifth surface S5 is flush with the surface of the black matrix BM facing away from the substrate 1, the second surface S2 is higher than the surface of the black matrix BM facing away from the substrate 1. Of course, the fifth surface S5 can also be higher than the surface of the black matrix BM facing away from the substrate 1. Alternatively, the fifth surface S5 can also be lower than the surface of the black matrix BM facing away from the substrate 1.

[0093] In this embodiment, the first light filtering part 321 is convexly arranged in the direction away from the substrate 1 compared with the second light filtering part 322, the second light filtering part 322 is convexly arranged in the direction away from the substrate 1 compared with the third light filtering part 323, and the three form a two-step structure, so as to realize the feature that the thickness gradually decreases from the center to the edge, which can reduce the brightness attenuation of the light rays in the shared area as the angle of the light rays increases.

[0094] Optionally, at least one of the first surface S1, the second surface S2 and the fifth surface S5 is an arc surface, and the surface of the second color filter 32 facing away from the substrate 1 gradually decreases in thickness from the center to the edge. The arc transition can make the change of the light rays more gentle.

[0095] In some embodiments, FIG. 3 is a schematic diagram of a display panel under Example 3 according to an embodiment of the present disclosure, and FIG. 4 is a schematic diagram of a display panel under Example 4 according to an embodiment of the present disclosure.

[0096] As shown in FIG. 3 or FIG. 4, the first light filtering part 321 comprises a first surface S1 facing away from the substrate 1, the second light filtering part 322 comprises a second surface S2 facing away from the substrate 1, and the third light filtering part 323 comprises a fifth surface S5 facing away from the substrate 1.

[0097] Optionally, as shown in FIG. 3 or FIG. 4, the first surface S1, the second surface S2 and the fifth surface S5 are coplanar and connected as a flat plane, facilitating etching and forming.

[0098] Optionally, the first surface S1, the second surface S2 and the fifth surface S5 are connected as an arc surface, specifically a convex surface, i.e., higher in the middle and lower at the edges, which is conducive to reducing the brightness decay as the angle of the outgoing light increases.

[0099] Continuing as shown in FIG. 3 or FIG. 4, the first light filtering part 321 further comprises a third surface S3 close to the substrate 1, the second light filtering part 322 comprises a fourth surface S4 close to the substrate 1, and the third light filtering part 323 comprises a sixth surface S6 close to the substrate 1; the third surface S3 is closer to the substrate 1 than the fourth surface S4, and the fourth surface S4 is closer to the substrate 1 than the sixth surface S6, and the third surface S3, the fourth surface S4 and the sixth surface S6 are all flat planes.

[0100] The difference between the present embodiment and Example 2 is that the first light filtering part 321, the second light filtering part 322 and the third light filtering part 323 form an inverted step structure.

[0101] Optionally, the third surface S3, the fourth surface S4 and the sixth surface S6 are one or more combinations of flat planes, inclined planes or arc surfaces.

[0102] In an optional implementation, the appearance characteristics of the inverted step structure of the second color filter 32 can be defined by changing the topography of the first protective layer 4. Specifically, as shown in FIG. 3, the display panel further comprises a first protective layer 4 disposed between the color film layer 3 and the pixel unit. The first protective layer 4 is used to protect the underlying film layer structure, for example, including but not limited to a touch function layer TSP and the like. For example, the first protective layer 4 can be optionally made of photoresist (OC) material.

[0103] The first protective layer 4 is laid in an integral layer. The first protective layer 4 comprises a first protective structure 41 located in the opening V; the first protective structure 41 comprises a first recess 411, a first protrusion 412 for defining the first recess 411, and a second protrusion 413 arranged around the first protrusion 412; a part of the first filter portion 321 is located in the first recess 411, and another part protrudes out of the first recess 411 away from the side of the substrate substrate 1; the second filter portion 322 abuts against the first protrusion 412, and the third filter portion 323 abuts against the second protrusion 413.

[0104] Here, the surface of the first protrusion 412 away from the substrate substrate 1 is a flat plane. The surface of the second protrusion 413 away from the substrate substrate 1 is a flat plane. The bottom surface of the first recess 411 is a flat plane.

[0105] In the present embodiment, by changing the appearance of the first protective layer 4, for example, by arranging the first protective structure 41 to have a low middle and a thickness that tends to increase in the direction from the middle to the edge. The second color filter 32 is formed on the first protective structure 41, thereby defining the first filter portion 321, the second filter portion 322 and the third filter portion 323, which have a high middle and a thickness that tends to decrease in the direction from the middle to the edge.

[0106] In another alternative embodiment, the appearance characteristics of the inverted step structure of the second color filter 32 can be defined by changing the appearance of the second protective layer 5. As shown in FIG. 4, the display panel further comprises a second protective layer 5 arranged between the first protective layer 4 and the pixel unit. The second protective layer 5 realizes the planarization of the underlying film layer. For example, the second protective layer 5 can be made of photoresist (OC) material.

[0107] The second protective layer 5 is laid in an integral layer. The second protective layer 5 is spaced apart from the color filter layer 3 by at least the first protective layer 4. By changing the appearance characteristics of the second protective layer 5, the appearance characteristics of the first protective layer 4 prepared thereon are changed, and further the appearance characteristics of the second color filter 32 on the first protective layer 4 are changed.

[0108] Specifically, the second protective layer 5 comprises a second protective structure 51 arranged corresponding to the second color filter 32; the second protective structure 51 comprises a second recess 511, a third protrusion 512 for defining the second recess 511, and a fourth protrusion 513 arranged around the third protrusion 512; the first filter portion 321 is arranged corresponding to the second recess 511, the second filter portion 322 is arranged corresponding to the third protrusion 512, and the third filter portion 323 is arranged corresponding to the fourth protrusion 513.

[0109] Here, the surface of the third protrusion 512 facing away from the substrate 1 is a flat plane. The surface of the fourth protrusion 513 facing away from the substrate 1 is a flat plane. The bottom surface of the second recess 511 is a flat plane.

[0110] The orthographic projection of the first filter portion 321 on the substrate 1 falls within the edge profile of the orthographic projection of the second recess 511 on the substrate 1; the orthographic projection of the second filter portion 322 on the substrate 1 falls within the orthographic projection of the third protrusion 512 on the substrate 1; and the orthographic projection of the third filter portion 323 on the substrate 1 falls within the orthographic projection of the fourth protrusion 513 on the substrate 1.

[0111] That is, the opening V' of the second recess 511 is slightly larger than the third surface S3 of the first filter portion 321, the surface of the third protrusion 512 facing away from the substrate 1 is slightly larger than the fourth surface S4 of the second filter portion 322, and the surface of the fourth protrusion 513 facing away from the substrate 1 is slightly larger than the sixth surface S6 of the third filter portion 323, so as to provide a deformation allowance for subsequent stacking of other film layers (for example, the first protective layer 4).

[0112] In the embodiment, the second protective layer 5 is shaped by changing the shape, for example, the second protective structure 51 is arranged to have a shape feature of being low in the middle and increasing in thickness from the middle to the edge. Then, based on the shape feature of the second protective structure 51, the material of the first protective layer 4 is deposited on the second protective structure 51 to have the same thickness, so that the first protective layer 4 is shaped to have the same shape feature as the second protective structure 51, thereby changing the shape feature of the first protective layer 4, and further changing the shape feature of the second color filter 32 on the first protective layer 4, that is, limiting the first filter portion 321, the second filter portion 322 and the third filter portion 323 to have a shape feature of being high in the middle and decreasing in thickness from the middle to the edge.

[0113] Optionally, as shown in FIG. 3 or FIG. 4, the third surface S3 of the first filter portion 321 close to the substrate 1 is flush with the surface of the first color filter 31 close to the substrate 1.

[0114] In some embodiments, FIG. 5 is a schematic diagram of a display panel according to an example 5 of the present disclosure, and FIG. 6 is a schematic diagram of a display panel according to an example 6 of the present disclosure.

[0115] As shown in FIG. 5 or FIG. 6, the first filter portion 321 includes a first surface S1 facing away from the substrate 1, and the second filter portion 322 includes a second surface S2 facing away from the substrate 1.

[0116] Optionally, as shown in FIG. 5 or FIG. 6, the first surface S1 and the second surface S2 are coplanar and are flat planes, which facilitates etching and shaping.

[0117] Optionally, the first surface S1 and the second surface S2 are connected as an arc surface (as shown in FIG. 9 or FIG. 10 below), specifically, a convex surface, i.e., high in the middle and low at the edges, which is beneficial to reduce the brightness decay as the angle of the outgoing light increases.

[0118] Continuing as shown in FIG. 5 or FIG. 6, the first filter part 321 further includes a third surface S3 close to the substrate substrate 1, and the second filter part 322 includes a fourth surface S4 close to the substrate substrate 1; the third surface S3 is closer to the substrate substrate 1 than the fourth surface S4, and the third surface S3 and the fourth surface S4 are both flat planes.

[0119] Optionally, the second filter part 322 is in direct contact with the black matrix BM.

[0120] The difference between the present embodiment and Example 1 is that the first filter part 321 and the second filter part 322 form an inverted step structure.

[0121] Optionally, the third surface S3 and the fourth surface S4 are one or a combination of a flat plane, an inclined plane, or an arc surface.

[0122] In an optional implementation, the appearance characteristics of the second color filter 32 and the inverted step structure can be defined by changing the morphology of the first protective layer 4. Specifically, as shown in FIG. 5, the display panel further includes a first protective layer 4 disposed between the color film layer 3 and the pixel unit. The first protective layer 4 is used to protect the underlying film layer structure, for example, including but not limited to the touch function layer TSP, etc. For example, the first protective layer 4 can be optionally made of photoresist (OC) material.

[0123] The first protective layer 4 is laid in an integral layer. The first protective layer 4 includes a first protective structure 41 located in the opening V; the first protective structure 41 includes a first recess 411 and a first protrusion 412 for defining the first recess 411; at least part of the first filter part 321 is located in the first recess 411, and the second filter part 322 abuts against the first protrusion 412.

[0124] Here, the surface of the first protrusion 412 away from the substrate substrate 1 is a flat plane. The surface of the second protrusion 413 away from the substrate substrate 1 is a flat plane. The bottom surface of the first recess 411 is a flat plane.

[0125] In the present embodiment, by changing the morphology of the first protective layer 4, for example, by setting the first protective structure 41, the morphology characteristics of the middle being low and the thickness being increasing from the middle to the edge are formed. The second color filter 32 is formed on the first protective structure 41, thereby defining the morphology characteristics of the first filter part 321, the second filter part 322, and the third filter part 323, which are high in the middle and low on both sides.

[0126] In another alternative embodiment, the second color filter 32 can be formed by changing the topography of the second protective layer 5. As shown in FIG. 6, the display panel further includes a second protective layer 5 disposed between the first protective layer 4 and the pixel unit. The second protective layer 5 serves to planarize the underlying film layers. For example, the second protective layer 5 can be made of photoresist (OC) material.

[0127] The second protective layer 5 is formed in a whole layer. The second protective layer 5 is spaced apart from the color filter layer 3 by at least the first protective layer 4. The topography of the second color filter 32 formed on the first protective layer 4 is changed by changing the topography of the second protective layer 5, and then changing the topography of the first protective layer 4 formed thereon.

[0128] Specifically, the second protective layer 5 includes a second protective structure 51 located in the opening V; the second protective structure 51 includes a second recess 511 and a third protrusion 512 for defining the second recess 511; the first filter portion 321 is disposed corresponding to the second recess 511, and the second filter portion 322 is disposed corresponding to the third protrusion 512.

[0129] Here, the surface of the third protrusion 512 away from the substrate 1 is a flat plane. The bottom surface of the second recess 511 is a flat plane.

[0130] The orthographic projection of the first filter portion 321 on the substrate 1 falls within the edge profile of the orthographic projection of the second recess 511 on the substrate 1; the orthographic projection of the second filter portion 322 on the substrate 1 falls within the orthographic projection of the third protrusion 512 on the substrate 1.

[0131] That is, the opening V' of the second recess 511 is slightly larger than the third surface S3 of the first filter portion 321, and the surface of the third protrusion 512 away from the substrate 1 is slightly larger than the fourth surface S4 of the second filter portion 322, so as to provide a deformation allowance for subsequent stacking of other film layers (e.g., the first protective layer 4).

[0132] In this embodiment, the topography of the second protective layer 5 is changed, such as the second protective structure 51 is disposed, so that the topography feature of the middle low and both sides high is formed. Then, based on the topography feature of the second protective structure 51, the material of the first protective layer 4 with the same thickness is deposited thereon, so that the same topography as the second protective structure 51 is formed, so as to change the topography feature of the first protective layer 4 formed thereon, and then change the topography feature of the second color filter 32 on the first protective layer 4, that is, to limit the topography feature of the first filter portion 321 and the second filter portion 322, which is the middle high and both sides low.

[0133] In some embodiments, as shown in FIG. 3, FIG. 4, FIG. 5 or FIG. 6, a part of the second color filter 32 (e.g. the first filter part 321 and the second filter part 322) is located within the opening V corresponding thereto, and another part (e.g. the redundant part 30) is located on the surface of the black matrix BM away from the substrate 1.

[0134] In some embodiments, as shown in FIG. 1, FIG. 5 and FIG. 6, for the above-mentioned example 1, example 5 and example 6, the first filter part 321 comprises a first surface S1 away from the substrate 1, and the second filter part 322 comprises a second surface S2 away from the substrate 1. Wherein, the angle between any point on the first surface S1 and the line connecting the point to the light-emitting center point O2 of the second light-emitting device 22 is the first angle; the first angle is within [0°, 15°] with the reference line extending in the direction away from the substrate 1. At least a part of the points on the second surface S2 have the angle within (15°, 60°] with the line connecting the point to the light-emitting center point O2 of the second light-emitting device 22.

[0135] Optionally, the angle between any point on the second surface S2 and the line connecting the point to the light-emitting center point O2 of the second light-emitting device 22 is the second angle; the second angle is within (15°, 60°] with the reference line extending in the direction away from the substrate 1.

[0136] Wherein, the light rays A, B and C represent the light-emitting routes with the light-emitting angles of 10°, 40° and 50°, respectively. The thicknesses of the second filter part 322 corresponding to the light rays B and C are the same. As can be seen, the first filter part 321 is used for filtering the light within H±15°, and the second filter part 322 is used for filtering the light within H±60°. Similarly, according to the thickness of the longitudinal film, the light ray angle (15°) on the first line and the light ray angle (60°) on the second line, the step position of the first filter part 321 and the second filter part 322, i.e. the size in the first direction X, can be accurately calculated and determined.

[0137] Optionally, as shown in FIG. 1, the angle between a point on the edge of the first surface S1 and the line connecting the point to the light-emitting center point O2 is 15°; and the angle between a point on the edge of the second surface S2 and the line connecting the point to the light-emitting center point O2 is 60°. Given the vertical distance H1 of the first surface S1 to O2, the size of the first filter part 321 in the first direction X is 2xtan15°xH1; given the vertical distance H2 of the second surface S2 to O2, the size of the second filter part 322 in the first direction X is tan60°xH2-tan15°xH1.

[0138] Optionally, as shown in FIG. 5 or FIG. 6, the angle between the line connecting a point on the edge of the third surface S3 to the light-emitting center point O2 is 15°; the angle between the line connecting a point on the edge of the fourth surface S4 to the light-emitting center point O2 is 60°. Given the vertical distance H3 of the third surface S3 to O2, the size of the first light filtering part 321 in the first direction X is 2xtan15°xH3; given the vertical distance H4 of the fourth surface S4 to O2, the size of the second light filtering part 322 in the first direction X is tan60°xH4-tan15°xH3.

[0139] Optionally, the thickness of the first light filtering part 321 is between 3um and 4um; the thickness of the second light filtering part 322 is between 0.5um and 2um. Taking the second light-emitting device 22 as a red light-emitting device and the second color filter 32 as a red light filter as an example, the thickness of the first light filtering part 321 is 4um; the thickness of the second light filtering part 322 is 1um. Similarly, the thickness of the first convex part 412 and the second convex part corresponding to different exit angles of green light-emitting devices and blue light-emitting devices can be analogously set.

[0140] In some embodiments, for the above-mentioned examples 2, 3 and 4, as shown in FIG. 2, FIG. 3 or FIG. 4, the first light filtering part 321 includes a first surface S1 facing away from the substrate 1, the second light filtering part 322 includes a second surface S2 facing away from the substrate 1, and the third light filtering part 323 includes a fifth surface S5 facing away from the substrate 1. Wherein, the line connecting any point on the first surface S1 to the light-emitting center point O2 of the second light-emitting device 22 is a first line; the angle between the first line and the reference line extending in the direction away from the substrate 1 is within [0°, 15°]; the line connecting any point on the second surface S2 to the light-emitting center point O2 of the second light-emitting device 22 is a second line; the angle between the second line and the reference line extending in the direction away from the substrate 1 is within (15°, 45°]; and the line connecting at least some points on the fifth surface S5 to the light-emitting center point O2 of the second light-emitting device 22 is a third line; the angle between the third line and the reference line extending in the direction away from the substrate 1 is within (15°, 60°].

[0141] Optionally, the line connecting any point on the fifth surface S5 to the light-emitting center point O2 of the second light-emitting device 22 is a third line; the angle between the third line and the reference line extending in the direction away from the substrate 1 is within (15°, 60°].

[0142] The light rays A, B and C represent light paths with angles of 10°, 40° and 50°, respectively. The thicknesses of the filter portions corresponding to the light rays A, B and C decrease step by step, i.e. the first filter portion 321, the second filter portion 322 and the third filter portion 323. In this way, it can be seen that the first filter portion 321 is used for filtering light within H±15°, the second filter portion 322 is used for filtering light within H±45°, and the third filter portion 323 is used for filtering light within H±60°. Similarly, according to the thickness of the longitudinal film, the angle of the light ray on the first line (15°), the angle of the light ray on the second line (45°) and the angle of the light ray on the third line (60°), the step positions of the first filter portion 321, the second filter portion 322 and the third filter portion 323, i.e. the size in the first direction X, can be accurately calculated and determined.

[0143] Alternatively, as shown in FIG. 2, the angle between the line connecting a point on the edge of the first surface S1 and the light-emitting center point O2 is 15°; the angle between the line connecting a point on the edge of the second surface S2 and the light-emitting center point O2 is 45°; and the angle between the line connecting a point on the edge of the fifth surface S5 and the light-emitting center point O2 is approximately 60°. Given the vertical distance H1 of the first surface S1 to O2, the size of the first filter portion 321 in the first direction X is 2xtan15°xH1; given the vertical distance H2 of the second surface S2 to O2, the size of the second filter portion 322 in the first direction X is tan45°xH2-tan15°xH1; and given the vertical distance H5 of the fifth surface S5 to O2, the size of the third filter portion 323 in the first direction X is tan60°xH5-tan45°xH2.

[0144] Alternatively, as shown in FIG. 3 or FIG. 4, the angle between the line connecting a point on the edge of the third surface S3 and the light-emitting center point O2 is 15°; the angle between the line connecting a point on the edge of the fourth surface S4 and the light-emitting center point O2 is 45°; and the angle between the line connecting a point on the edge of the sixth surface S6 and the light-emitting center point O2 is approximately 60°. Given the vertical distance H3 of the third surface S3 to O2, the size of the first filter portion 321 in the first direction X is 2xtan15°xH3; given the vertical distance H4 of the fourth surface S4 to O2, the size of the second filter portion 322 in the first direction X is tan45°xH4-tan15°xH3; and given the vertical distance H6 of the sixth surface S6 to O2, the size of the third filter portion 323 in the first direction X is tan60°xH6-tan45°xH4.

[0145] Optionally, as shown in FIG. 2, FIG. 3 or FIG. 4, the central thickness of the first filter part 321 is between 3um and 4um; the central thickness of the second filter part 322 is between 2um and 3um; and the central thickness of the third filter part 323 is between 0.5um and 2um. Taking the second light emitting device 22 as a red light emitting device and the second color filter 32 as a red filter as an example, the central thickness of the first filter part 321 is 4um; the central thickness of the second filter part 322 is 3um; and the central thickness of the third filter part 323 is 1um. The thickness of the first convex part 412 is 1um; and the thickness of the second convex part 413 is 3um. Similarly, the thickness of the first convex part 412 and the second convex part 413 corresponding to different light exit angles of the green light emitting device and the blue light emitting device can be analogously set.

[0146] In some embodiments, as shown in FIG. 1 to FIG. 6, the central thickness of the first filter part 321 is the same as the maximum thickness of the first color filter 31. The first surface S1 of the first filter part 321 away from the substrate 1 is flush with the surface of the first color filter 31 away from the substrate 1. The third surface S3 of the first filter part 321 close to the substrate 1 is flush with the surface of the first color filter 31 close to the substrate 1.

[0147] In some embodiments, FIG. 7 is a schematic diagram of a display panel under Example 7 provided by the embodiments of the present disclosure. FIG. 8 is a schematic diagram of a display panel under Example 8 provided by the embodiments of the present disclosure. FIG. 9 is a schematic diagram of a display panel under Example 9 provided by the embodiments of the present disclosure. FIG. 10 is a schematic diagram of a display panel under Example 10 provided by the embodiments of the present disclosure.

[0148] As shown in FIG. 7 to FIG. 10, the second color filter 32 located in the opening V further comprises a fourth filter part 324, the fourth filter part 324 is arranged on the side of the second filter part 322 away from the first filter part 321 along the first direction X, and the central thickness H4 of the fourth filter part 324 in the direction away from the substrate 1 is greater than the central thickness H2 of the second filter part 322 in the direction away from the substrate 1.

[0149] The embodiments provide a structure of the second color filter 32 thick (fourth filter part 324)-thin (second filter part 322)-thick (first filter part 321)-thin (second filter part 322)-thick (fourth filter part 324), which can reduce the luminance attenuation under a certain light exit angle, such as reducing the luminance attenuation of the light exit ray in a certain light exit angle range corresponding to the second filter part 322. In addition, the thicker fourth filter part 324 protects the sidewall of the opening V.

[0150] Optionally, the fourth light filtering part 324 has a normal projection on the substrate 1 that partially overlaps with a normal projection of the black matrix BM on the substrate 1.

[0151] In some embodiments, the second color filter 32 has a concave-convex curved surface facing away from the surface of the substrate 1.

[0152] Specifically, as shown in FIG. 7, the first light filtering part 321 includes a first surface S1 facing away from the substrate 1, the second light filtering part 322 includes a second surface S2 facing away from the substrate 1, and the fourth light filtering part 324 includes a seventh surface S7 facing away from the substrate 1; the first surface S1, the second surface S2, and the seventh surface S7 are all arc surfaces. Such a structure with an arc transition surface can make the change of the outgoing light more gradual.

[0153] The first light filtering part 321 has a gradually decreasing thickness in a direction from the center to the edge; the second light filtering part 322 has a gradually decreasing thickness in a direction away from the first light filtering part 321, so that the outgoing light filtered by the second color filter 32 gradually reduces in luminance attenuation as the outgoing light angle increases, meeting the viewing needs of the screen side sharing user in the sharing mode.

[0154] In some embodiments, the junction between the first light filtering part 321 and the second light filtering part 322 on the side surface facing away from the substrate 1 adopts a curved surface transition.

[0155] As shown in FIG. 8, the first light filtering part 321 includes a first surface S1 facing away from the substrate 1, the second light filtering part 322 includes a second surface S2 facing away from the substrate 1, and the fourth light filtering part 324 includes a seventh surface S7 facing away from the substrate 1; the first surface S1 includes a first sub-surface S11 and a second sub-surface S12, the second sub-surface S12 connects the first sub-surface S11 and the second surface S2, the first sub-surface S11 and the second surface S2 are flat planes, and the second sub-surface S12 and the seventh surface S7 are arc surfaces. Such a structure with an arc transition surface can make the change of the outgoing light more gradual.

[0156] Optionally, the second sub-surface S12 can also be a vertical plane, an inclined surface, or a curved surface.

[0157] Optionally, the second surface S2 is flush with the surface of the black matrix BM facing away from the substrate 1. Of course, the second surface S2 can also be higher than the surface of the black matrix BM facing away from the substrate 1. Alternatively, the second surface S2 can also be lower than the surface of the black matrix BM facing away from the substrate 1.

[0158] Optionally, the fourth light filtering part 324 protrudes from the black matrix BM, and the fourth light filtering part 324 is overlapped on the side of the black matrix BM facing away from the substrate 1 in a direction away from the edge of the second light filtering part 322 along the first direction X.

[0159] Optionally, the fourth filter portion 324 is partially overlapped with the black matrix BM in the projection of the substrate 1. The fourth filter portion 324 is partially overlapped with the corresponding opening V in the projection of the substrate 1.

[0160] Optionally, the first filter portion 321 and the second filter portion 322 are both within the corresponding opening V in the projection of the substrate 1.

[0161] In some embodiments, the first filter portion 321 and the second filter portion 322 are connected by a curved surface near the boundary of the side surface of the substrate 1.

[0162] As shown in FIG. 9 or FIG. 10, the first filter portion 321 includes a first surface S1 facing away from the substrate 1, the second filter portion 322 includes a second surface S2 facing away from the substrate 1, and the fourth filter portion 324 includes a seventh surface S7 facing away from the substrate 1; the first surface S1, the second surface S2, and the seventh surface S7 are connected as an arc surface, which can make the change of the outgoing light more gentle. The first filter portion 321 further includes a third surface S3 near the substrate 1, and the second filter portion 322 includes a fourth surface S4 near the substrate 1; the third surface S3 and the fourth surface S4 are both arc surfaces, which can make the change of the outgoing light more gentle.

[0163] Optionally, as shown in FIG. 9 or FIG. 10, the first surface S1 and the third surface S3 have the same curvature; the line connecting a point Q1 on the first surface S1 and a point Q2 on the third surface S3 is collinear with the light-emitting center point O2, and a first tangent line of the first surface S1 at the point Q1 and a second tangent line of the third surface S3 at the point Q2 are parallel to each other. The distance between the two points on the first surface S1 and the third surface S3 which are collinear with the line connecting the light-emitting center point O2 is equal, that is, the first filter portion 321 is equal in thickness.

[0164] Optionally, the fourth filter portion 324 protrudes from the black matrix BM, and the fourth filter portion 324 is overlapped with the black matrix BM away from the substrate 1 along the first direction X and away from the edge of the second filter portion 322.

[0165] Optionally, the fourth filter portion 324 is partially overlapped with the black matrix BM in the projection of the substrate 1. The fourth filter portion 324 is partially overlapped with the corresponding opening V in the projection of the substrate 1.

[0166] In some embodiments, as shown in FIG. 9, the fourth filter part 324 includes an eighth surface S8 close to the substrate 1. The eighth surface S8 includes a third sub-surface S81 and a fourth sub-surface S82, the third sub-surface S81 connects the fourth sub-surface S82 and the fourth surface S4; the third sub-surface S81 is an arc surface, and such a structure with an arc transition surface can make the change of the outgoing light more gentle. The fourth sub-surface S82 is a flat plane. Optionally, the fourth sub-surface S82 is flush with the surface of the black matrix BM close to the substrate 1.

[0167] In some embodiments, as shown in FIG. 10, the eighth surface S8 is a flat plane, and is flush with the surface of the black matrix BM close to the substrate 1.

[0168] In some embodiments, as shown in FIG. 9 or FIG. 10, the thickness (such as H4) of the second filter part 322 at the junction with the fourth filter part 324 is greater than the central thickness H2 of the second filter part 322. The thickness of the second filter part 322 gradually increases in the direction from the center to the fourth filter part 324.

[0169] In some embodiments, the thickness of the second filter part 322 gradually decreases in the direction away from the first filter part 321.

[0170] In some embodiments, FIG. 11 is a schematic diagram of a display panel under Example 11 provided by the embodiments of the present disclosure, as shown in FIG. 11, the display panel further includes a reflective structure 6 arranged in the opening V and attached to the sidewall of the opening V; the fourth filter part 324 wraps the reflective structure 6, and the maximum thickness of the fourth filter part 324 is greater than the thickness of the black matrix BM.

[0171] The reflective structure 6 is used to reflect the light irradiated on the sidewall of the black matrix BM, so as to improve the outcoupling efficiency.

[0172] According to the user's demand, the lowest brightness of the outgoing light with an angle less than 50° is limited. The brightness attenuation of the outgoing light with an angle greater than 50° is not considered. Therefore, the central thickness of the fourth filter part 324 can be increased, such as greater than the central thickness of the second filter part 322. The thicker fourth filter part 324 wraps the reflective structure, which can reduce the reflection of the external ambient light on the reflective structure 6.

[0173] Optionally, the material of the reflective structure 6 is a metal material, such as copper and the like.

[0174] In some embodiments, for the above examples 7-10, as shown in FIGS. 7-10, the first light filtering part 321 includes a first surface S1 facing away from the substrate substrate 1, and the second light filtering part 322 includes a second surface S2 facing away from the substrate substrate 1. A line between any point on the first surface S1 and the light-emitting center point O2 of the second light-emitting device 22 is a first line; an included angle between the first line and a reference line extending in a direction away from the substrate substrate 1 is within [0°, 15°]; and a line between at least some points on the second surface S2 and the light-emitting center point O2 of the second light-emitting device 22 is a second line; an included angle between the second line and the reference line extending in a direction away from the substrate substrate 1 is within (15°, 60°].

[0175] Optionally, a line between any point on the second surface S2 and the light-emitting center point O2 of the second light-emitting device 22 is a second line; an included angle between the second line and a reference line extending in a direction away from the substrate substrate 1 is within (15°, 60°].

[0176] Optionally, a line between any point on the seventh surface S7 and the light-emitting center point O2 of the second light-emitting device 22 is a fourth line; an included angle between the fourth line and a reference line extending in a direction away from the substrate substrate 1 is greater than 60°.

[0177] Optionally, as shown in FIG. 9 or FIG. 10, a line between the center Q3 of the fourth surface S4 and the light-emitting center point O2 of the second light-emitting device 22 is a fifth line, and an included angle between the fifth line and a reference line extending in a direction away from the substrate substrate 1 is 60°.

[0178] Optionally, a thickness of the first light filtering part 321 is between 3um and 4um; and a thickness of the second light filtering part 322 is between 0.5um and 2um. Taking the second light-emitting device 22 as a red light-emitting device and the second color filter 32 as a red light filter as an example, the thickness of the first light filtering part 321 is 4um; and the thickness of the second light filtering part 322 is 1um. Similarly, the thicknesses of the first convex part 412 and the second convex part corresponding to different exit light angles of green light-emitting devices and blue light-emitting devices can be analogously set.

[0179] In some embodiments, as shown in FIGS. 1-10, the first light filtering part 321 is symmetrically arranged on both sides of the center line of the second color filter 32; and the second light filtering part 322 is symmetrically arranged on both sides of the center line of the second color filter 32.

[0180] In some embodiments, a contour shape of a normal projection of the first light filtering part 321 on the substrate substrate 1 can be any one of the following: a circular shape, a square shape, a rectangular shape, a hexagonal shape, an octagonal shape, etc.

[0181] In some embodiments, FIG. 12 is a schematic diagram of a specific film layer of a display panel provided by embodiments of the present disclosure, as shown in FIG. 12, a plurality of pixel units include a privacy sub-pixel and a shared sub-pixel; wherein the privacy sub-pixel is located in a privacy area AA1, and the shared sub-pixel is located in a shared area AA2. The privacy sub-pixel includes at least one first light emitting device 21, and a first pixel driving circuit 23 for driving the first light emitting device 21. The shared sub-pixel includes a second light emitting device 22 and a second pixel driving circuit 24 for driving the second light emitting device 22.

[0182] Optionally, the privacy sub-pixel includes a plurality of first light emitting devices 21, and the anodes of the plurality of first light emitting devices 21 are shared. The privacy sub-pixel includes one first pixel driving circuit 23 electrically connected to the anodes of the respective first light emitting devices 21 and configured to simultaneously drive the plurality of first light emitting devices 21.

[0183] The display panel includes a driving layer 7 disposed on the substrate 1, and the driving layer 7 includes the first pixel driving circuit 23 and the second pixel driving circuit 24. The first light emitting device 21 and the second light emitting device 22 are disposed on a side of the driving layer 7 away from the substrate 1.

[0184] The light emitting device (including the first light emitting device 21 and the second light emitting device 22) includes, in sequence from a direction away from the substrate 1, an anode 201, a light emitting layer EL, and a cathode 202.

[0185] The display panel further includes a pixel definition layer PDL disposed on a side of the driving layer 7 away from the substrate 1, and the pixel definition layer PDL is provided with a pixel opening for defining the light emitting layer EL of the light emitting device.

[0186] In some embodiments, as shown in FIG. 12, the display panel further includes an encapsulation layer 8 disposed on a side of the pixel unit away from the substrate 1. The encapsulation layer 8 can be a single-layer structure or a combination of multiple-layer structures.

[0187] Optionally, the encapsulation layer 8 includes, in sequence from a direction away from the substrate 1, a first inorganic encapsulation layer CVD1, an organic encapsulation layer IJP, and a second inorganic encapsulation layer CVD2. Exemplarily, the material of the first inorganic encapsulation layer CVD1 and / or the second inorganic encapsulation layer CVD2 can include, but is not limited to, a combination of one or more of inorganic materials such as silicon nitride, silicon oxide, silicon oxynitride, etc. The material of the organic encapsulation layer IJP can include, but is not limited to, a combination of one or more of resin materials such as acrylic, polyimide, epoxy, polyester, photoresist, polyacrylate, polyamide, silicone, etc.; or alternatively, materials such as urethane, thermoplastic polyurethane (TPU), etc.

[0188] In some embodiments, as shown in FIG. 12, the display panel further comprises a light shielding layer 9 disposed on the side of the encapsulation layer 8 away from the substrate 1, and the light shielding layer 9 is located in the privacy area AA1. The light shielding layer 9 comprises light shielding portions 91 and opening portions 92. The light shielding portions 91 are overlapped with the part of the black matrix BM located in the privacy area AA1 in the orthographic projection on the substrate 1. The opening portions 92 are opposite to the openings V of the black matrix BM.

[0189] Optionally, the light shielding portions 91 are not overlapped with the part of the black matrix BM located in the shared area AA2 in the orthographic projection on the substrate 1, which can further increase the viewing angle of the outgoing light in the shared area AA2 and realize sharing.

[0190] Optionally, the area of the opening portion 92 is slightly larger than the area of the first light emitting device 21 corresponding thereto.

[0191] Optionally, the orthographic projection of the opening portion 92 on the substrate 1 is overlapped with the orthographic projection of the opening V on the substrate 1. The area of the orthographic projection of the opening portion 92 on the substrate 1 is the same as the area of the orthographic projection of the opening V on the substrate 1.

[0192] In some embodiments, as shown in FIG. 12, the second protection layer 5 is disposed on the side of the light shielding layer 9 away from the substrate 1 and directly contacts the light shielding layer 9.

[0193] In some embodiments, as shown in FIG. 12, the display panel further comprises a buffer layer 10 disposed between the first protection layer 4 and the second protection layer 5, and a touch functional layer TSP disposed on the side of the buffer layer 10 close to the first protection layer 4. The touch functional layer TSP comprises multiple metal layers and dielectric layers disposed between adjacent two metal layers. The metal layers comprise a first touch layer (TMA) and a second touch layer (TMB) disposed in the direction away from the substrate 1 in sequence, wherein the second touch layer (TMB) comprises a touch driving electrode (Tx) and a touch sensing electrode (Rx); the first touch layer (TMA) comprises a bridging portion. The bridging portion connects two parts of the touch driving electrode (Tx) in the second touch layer (TMB) through a conductive via, or actually the touch sensing electrode (Rx) can also be connected through the bridging portion.

[0194] In some embodiments, as shown in FIG. 12, the display panel further comprises a third protection layer 11 disposed on the side of the color filter layer 3 away from the substrate 1, and the third protection layer 11 is used to realize the planarization of the color filter layer 3.

[0195] In some embodiments, as shown in FIG. 12, the display panel further comprises a light taking structure 12 disposed on the side of the third protective layer 11 away from the substrate 1. The light taking structure 12 comprises a first light taking part 121 corresponding to the first color filter 31, and a second light taking part 122 corresponding to the second color filter 32.

[0196] Optionally, the first light taking part 121 and the second light taking part 122 are both convex lenses made of high refractive material.

[0197] Optionally, the orthographic projection of the first light taking part 121 on the substrate 1 covers the orthographic projection of the first color filter 31 corresponding thereto on the substrate 1; and the orthographic projection of the second light taking part 122 on the substrate 1 covers the orthographic projection of the second color filter 32 corresponding thereto on the substrate 1.

[0198] Further, as shown in FIG. 12, the display panel further comprises a fourth protective layer 13 disposed on the side of the third protective layer 11 away from the substrate 1. The fourth protective layer 13 is made of low refractive material.

[0199] The high-low refractive structure provided in the embodiment can improve the light taking efficiency.

[0200] Further, the display panel further comprises a cover plate 14 disposed on the side of the fourth protective layer 13 away from the light taking structure 12.

[0201] It should be noted that the light emitting device involved in the embodiments of the present disclosure can include but is not limited to Organic Light-Emitting Diode (OLED), Quantum Dot Light Emitting Diodes (QLED) or Micro Light Emitting Diodes (Micro LED), etc. Optionally, the light emitting device is an OLED device.

[0202] In some embodiments, the display panel is a flexible display panel. For example, the flexible display panel is applied in the field of vehicle display, for example, the display panel is a vehicle flexible display panel.

[0203] In addition, the embodiments of the present disclosure further provide a preparation method of the display panel, which comprises steps S11-S13.

[0204] S11, providing a substrate 1.

[0205] S12, forming a plurality of pixel units on the substrate 1.

[0206] Each pixel unit includes a first pixel unit and a second pixel unit, the first pixel unit includes at least one first light emitting device 21, and the second pixel unit includes one second light emitting device 22;

[0207] S13, forming a color filter layer 3 on the side of the pixel unit away from the substrate 1.

[0208] The color filter layer 3 includes a plurality of color filters and a black matrix BM arranged between the color filters; the plurality of color filters include a first color filter 31 arranged corresponding to the first light emitting device 21 and a second color filter 32 arranged corresponding to the second light emitting device 22; the black matrix BM includes an opening V arranged corresponding to each color filter, the second color filter 32 opposite to the opening V includes a first filter part 321 and a second filter part 322, the second filter part 322 surrounds the first filter part 321, and the central thickness of the first filter part 321 in the direction away from the substrate 1 is greater than the central thickness of the second filter part 322 in the direction away from the substrate 1.

[0209] In some embodiments, for S13, the step of forming the second color filter 32 under Example 1, specifically: forming a thin film of filter material on the side of the pixel unit away from the substrate 1; using a half-tone mask (Half Tone Mask, HTM), the thin film of filter material is exposed to obtain the pattern of the plurality of color filters.

[0210] The half-tone mask is a kind of mask structure, including a completely transparent area, a partially transparent area and a non-transparent area. Among them, the light transmittance of the completely transparent area is greater than that of the partially transparent area, and the light transmittance of the partially transparent area is greater than that of the non-transparent area.

[0211] For example, the light transmittance of the completely transparent area is 100%, the light transmittance of the non-transparent area is 0, and the light transmittance of the partially transparent area is 40%. In this way, in the exposure process, the part of the thin film of filter material corresponding to the completely transparent area is completely exposed; the part of the thin film of filter material corresponding to the non-transparent area is not exposed, which is used to form the first filter part 321; the part of the thin film of filter material corresponding to the partially transparent area is partially exposed, which is used to form the second filter part 322.

[0212] In some embodiments, Figure 13 is a process diagram provided by the embodiments of the present disclosure for preparing the second color filter 32 under Example 2. For S13, the step of forming the second color filter 32 under Example 2, specifically: as shown in Figure 13, a thin film of filter material is formed on the side of the pixel unit away from the substrate 1; using a half-tone mask (Half Tone Mask, HTM), the thin film of filter material is exposed to obtain the pattern of the plurality of color filters.

[0213] The half-tone mask HTM includes a fully transparent area 01, a partially transparent area 02, and a non-transparent area 03. The fully transparent area 01 has a higher transmittance than the partially transparent area 02, and the partially transparent area 02 has a higher transmittance than the non-transparent area 03. The partially transparent area 02 includes a first partially transparent area 021 and a second partially transparent area 022. The second partially transparent area 022 has a higher transmittance than the first partially transparent area 021.

[0214] For example, the fully transparent area has a transmittance of 100%, the non-transparent area has a transmittance of 0, the first partially transparent area has a transmittance of 40%, and the second partially transparent area has a transmittance of 70%. In this way, during the exposure process, the part of the filter material film corresponding to the fully transparent area 01 is fully exposed; the part of the filter material film corresponding to the non-transparent area 03 is not exposed, and is used to form the first filter portion 321; the part of the filter material film corresponding to the first partially transparent area 021 is partially exposed, and is used to form the second filter portion 322; and the part of the filter material film corresponding to the second partially transparent area 022 is partially exposed, and is used to form the third filter portion 323.

[0215] It should be noted that the light intensity of different transmittance areas of the half-tone mask can be adjusted according to the user's brightness requirements for different exit light angles, to realize the morphology adjustment of the second color filter 32.

[0216] In some embodiments, for S13, the step of forming the second color filter 32 in Example 3 is specifically: forming a first protective layer 4 material on the side of the pixel unit away from the substrate 1; exposing the first protective layer 4 material using a half-tone mask to form a first protective layer 4, the first protective layer 4 including a first protective structure 41; the first protective structure 41 includes a first recess 411, a first protrusion 412 for defining the first recess 411, and a second protrusion 413 arranged around the first protrusion 412. Then, continue to form a black matrix BM on the side of the first protective layer 4 away from the substrate 1; and form a filter material film on the side of the black matrix BM away from the first protective layer 4, to obtain a plurality of color filters by means of the morphology characteristics of the first protective layer 4, wherein the second color filter 32 includes a first filter portion 321, a second filter portion 322, and a third filter portion 323. Part of the first filter portion 321 is located in the first recess 411, and the other part protrudes out of the first recess 411 along the side away from the substrate 1; the second filter portion 322 abuts against the first protrusion 412, and the third filter portion 323 abuts against the second protrusion 413.

[0217] In some embodiments, for S13, the steps of forming the second color filter 32 under Example 4 are specifically: forming a second protective layer 5 material on the side of the pixel unit away from the substrate 1; exposing the second protective layer 5 material with a half-tone mask, forming the second protective layer 5, the second protective layer 5 including a second protective structure 51; the second protective structure 51 including a second recess 511, a third protrusion 512 for defining the second recess 511, and a fourth protrusion 513 disposed around the third protrusion 512. Then, continue to form the first protective layer 4 on the side of the second protective layer 5 away from the substrate 1, so that the first protective layer 4 also has similar topographic features as the second protective layer 5. Then, continue to form the black matrix BM on the side of the first protective layer 4 away from the substrate 1; and form a filter material film on the side of the black matrix BM away from the first protective layer 4, to obtain a plurality of color filters by means of the topographic features of the second protective layer 5 which also change topography, wherein the second color filter 32 includes a first filter portion 321, a second filter portion 322, and a third filter portion 323. The orthographic projection of the first filter portion 321 on the substrate 1 falls within the edge contour of the orthographic projection of the second recess 511 on the substrate 1; the orthographic projection of the second filter portion 322 on the substrate 1 falls within the orthographic projection of the third protrusion 512 on the substrate 1; and the orthographic projection of the third filter portion 323 on the substrate 1 falls within the orthographic projection of the fourth protrusion 513 on the substrate 1.

[0218] In addition, the display device according to the embodiments of the present disclosure includes the display panel according to any one of the above embodiments. The display device can be, for example, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a vehicle-mounted device, or any product having a display function. Other essential components of the display device are understood by those skilled in the art and are not described here to avoid repetition. The display device should not be considered as limiting the present disclosure.

[0219] It can be understood that the above embodiments are only exemplary embodiments adopted for illustrating the principles of the present disclosure, and the present disclosure is not limited thereto. Various modifications and improvements can be made by those skilled in the art without departing from the spirit and essence of the present disclosure, and these modifications and improvements are also considered as the protection scope of the present disclosure.

Claims

1. A display panel, comprising: a substrate substrate; a plurality of pixel units disposed on the substrate substrate, each pixel unit comprising at least one first light emitting device and one second light emitting device; a color filter layer disposed on a side of the pixel unit away from the substrate substrate; the color filter layer comprising a plurality of color filters and a black matrix disposed between the color filters; the plurality of color filters comprising a first color filter disposed corresponding to the first light emitting device and a second color filter disposed corresponding to the second light emitting device; the black matrix comprising an opening disposed corresponding to each of the color filters; the second color filter located in the opening comprising a first filter portion and a second filter portion, the second filter portion surrounding the first filter portion, a central thickness of the first filter portion in a direction away from the substrate substrate being greater than a central thickness of the second filter portion in the direction away from the substrate substrate; the first filter portion comprising a first surface away from the substrate substrate, the second filter portion comprising a second surface away from the substrate substrate; the first surface being farther away from the substrate substrate than the second surface, and the first surface and the second surface being flat surfaces; the second color filter located in the opening further comprising a third filter portion disposed on a side of the second filter portion away from the first filter portion in a first direction, and a central thickness of the third filter portion in the direction away from the substrate substrate being less than the central thickness of the second filter portion in the direction away from the substrate substrate; the first filter portion comprising a first surface away from the substrate substrate, the second filter portion comprising a second surface away from the substrate substrate, and the third filter portion comprising a fifth surface away from the substrate substrate; the first surface being farther away from the substrate substrate than the second surface, the second surface being farther away from the substrate substrate than the fifth surface, and the first surface, the second surface, and the fifth surface being flat surfaces; the first filter portion comprising a first surface away from the substrate substrate, the second filter portion comprising a second surface away from the substrate substrate, and the third filter portion comprising a fifth surface away from the substrate substrate; the first surface, the second surface, and the fifth surface being coplanar and connected as a flat surface; the first filter portion further comprising a third surface close to the substrate substrate, the second filter portion comprising a fourth surface close to the substrate substrate, and the third filter portion comprising a sixth surface close to the substrate substrate; the third surface being closer to the substrate substrate than the fourth surface, the fourth surface being closer to the substrate substrate than the sixth surface, and the third surface, the fourth surface, and the sixth surface being flat surfaces; and the display panel further comprising a first protective layer disposed between the color filter layer and the pixel unit. ​ ​ ​ 2. The display panel of claim 1, wherein, ​ ​ 3. The display panel of claim 1, wherein, ​ 4. The display panel of claim 3, wherein, ​ ​ ​ 5. The display panel of claim 3, wherein, ​ ​ 6. The display panel of claim 5, wherein, ​ The first protective layer comprises a first protective structure in the opening; the first protective structure comprises a first recess, a first protrusion for defining the first recess, and a second protrusion arranged around the first protrusion; A part of the first filter portion is in the first recess, and another part protrudes from the first recess along a side away from the substrate substrate; the second filter portion abuts the first protrusion, and the third filter portion abuts the second protrusion.

7. The display panel of claim 6, wherein, The display panel further comprises a second protective layer arranged between the first protective layer and the pixel unit; The second protective layer comprises a second protective structure corresponding to the second color filter; the second protective structure comprises a second recess, a third protrusion for defining the second recess, and a fourth protrusion arranged around the third protrusion; The first filter portion has a normal projection on the substrate substrate, which falls within the edge profile of the normal projection of the second recess on the substrate substrate; The normal projection of the second filter portion on the substrate substrate falls within the normal projection of the third protrusion on the substrate substrate; The normal projection of the third filter portion on the substrate substrate falls within the normal projection of the fourth protrusion on the substrate substrate. The first filter portion comprises a first surface away from the substrate substrate, and the second filter portion comprises a second surface away from the substrate substrate; the first surface and the second surface are coplanar and are flat surfaces; 8. The display panel of claim 1, wherein, The first filter portion further comprises a third surface close to the substrate substrate, and the second filter portion comprises a fourth surface close to the substrate substrate; the third surface is closer to the substrate substrate than the fourth surface, and the third surface and the fourth surface are both flat surfaces. The display panel further comprises a first protective layer arranged between the color film layer and the pixel unit; 9. The display panel of claim 8, wherein, The first protective layer comprises a first protective structure in the opening; the first protective structure comprises a first recess, a first protrusion for defining the first recess, and a second protrusion arranged around the first protrusion; The second color filter in the opening further comprises a fourth filter portion arranged on a side of the second filter portion away from the first filter portion in a first direction, and a central thickness of the fourth filter portion in a direction away from the substrate substrate is greater than a central thickness of the second filter portion in the direction away from the substrate substrate.

10. The display panel of claim 1, wherein, The first filter portion comprises a first surface away from the substrate substrate, the second filter portion comprises a second surface away from the substrate substrate, and the fourth filter portion comprises a seventh surface away from the substrate substrate; the first surface, the second surface, and the seventh surface are all arc surfaces; 11. The display panel of claim 10, wherein, The thickness of the first filter portion gradually decreases in a direction from the center to the edge; the thickness of the second filter portion gradually decreases in a direction away from the first filter portion. ​ 12. The display panel of claim 10, wherein, The first filter part comprises a first surface facing away from the substrate, the second filter part comprises a second surface facing away from the substrate, and the fourth filter part comprises a seventh surface facing away from the substrate; The first surface comprises a first sub-surface and a second sub-surface, the second sub-surface connects the first sub-surface and the second surface, the first sub-surface and the second surface are flat planes, and the second sub-surface and the seventh surface are arc surfaces. The first filter part comprises a first surface facing away from the substrate, the second filter part comprises a second surface facing away from the substrate, and the fourth filter part comprises a seventh surface facing away from the substrate; the first surface, the second surface and the seventh surface are connected to form an arc surface.

13. The display panel of claim 10, wherein, The first filter part further comprises a third surface close to the substrate, and the second filter part comprises a fourth surface close to the substrate; the third surface and the fourth surface are arc surfaces. The display panel further comprises a reflective structure; the reflective structure is arranged in the opening corresponding to the second color filter and attached to the side wall of the opening; and the fourth filter part wraps the reflective structure.

14. The display panel of claim 10, wherein, 15. A display device comprising the display panel according to any one of claims 1-14. ​

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