CN114447067A

CN114447067A - Display panel and display device thereof

Info

Publication number: CN114447067A
Application number: CN202111573752.3A
Authority: CN
Inventors: 臧丹丹
Original assignee: Wuhan Tianma Microelectronics Co Ltd
Current assignee: Wuhan Tianma Microelectronics Co Ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-05-06

Abstract

The embodiment of the invention discloses a display panel and a display device thereof, comprising: a substrate base plate; a plurality of light emitting cells located at one side of the substrate base; the first color filter layer comprises a plurality of first color filter units, is positioned on one side of the light-emitting unit far away from the substrate and covers the light-emitting unit along the thickness direction of the display panel; the second color filter layer comprises a plurality of second color filter units and is positioned on one side of the first color filter units far away from the substrate; the second color filter unit at least partially overlaps the first color filter unit in a thickness direction of the display panel; and a first dielectric layer between the first color filter layer and the second color filter layer. Set up first color filter unit and second color filter unit through the interval, reduce the probability that external environment light is emergent after display panel internal reflection, guarantee the normal light-emitting of luminescence unit simultaneously, and then ensure display panel's normal display effect.

Description

Display panel and display device thereof

Technical Field

The embodiment of the invention relates to the technical field of display panels, in particular to a display panel and a display device thereof.

Background

With the development of display panel technology, the technology (CFOT) of depositing a color film after Thin Film Encapsulation (TFE) has been widely applied in the field of display panel manufacturing, but external ambient light incident into the display panel is reflected by the color film, which seriously affects the display effect of the display panel.

Disclosure of Invention

The embodiment of the invention provides a display panel and a display device thereof, which are used for reducing the probability that external incident light exits from the display panel again and ensuring the display effect of the display panel.

In a first aspect, an embodiment of the present invention provides a display panel, including:

a substrate base plate;

a plurality of light emitting cells located at one side of the substrate base;

the first color filter layer comprises a plurality of first color filter units, is positioned on one side of the light-emitting unit far away from the substrate base plate, and covers the light-emitting unit along the thickness direction of the display panel;

the second color filter layer comprises a plurality of second color filter units and is positioned on one side of the first color filter units far away from the substrate; the second color filter unit at least partially overlaps the first color filter unit in a thickness direction of the display panel;

and the first medium layer is positioned between the first color filter layer and the second color filter layer.

In a second aspect, an embodiment of the present invention further provides a display device, where the display device includes the display panel according to any one of the first aspects.

The invention provides a display panel, which comprises a first color filter layer, a first medium layer and a second color filter layer, wherein the first color filter layer comprises a plurality of first color filter units, the second color filter layer comprises a plurality of second color filter units, and the second color filter units are at least partially overlapped with the first color filter units, so that external light reflected by the first color filter units is received and reflected by the second color filter units, the intensity of reflected light is consumed, the probability of the external light emergent from the display panel is reduced, and the display effect of the display panel is improved.

Drawings

To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description will be given below of the drawings required for the embodiments or the technical solutions in the prior art, and it is obvious that the drawings in the following description, although being some specific embodiments of the present invention, can be extended and extended to other structures and drawings by those skilled in the art according to the basic concepts of the device structure, the driving method and the manufacturing method disclosed and suggested by the various embodiments of the present invention, without making sure that these should be within the scope of the claims of the present invention.

FIG. 1 is a schematic diagram of a display panel according to the prior art;

fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of another display panel according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of another display panel according to an embodiment of the present invention;

fig. 5 is a schematic top view of a display panel according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of another display panel according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of another display panel according to an embodiment of the present invention;

fig. 8 is a schematic top view of another display panel according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of another display panel according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of another display panel according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of another display panel according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of another display panel according to an embodiment of the present invention;

fig. 13 is a schematic structural diagram of another display panel according to an embodiment of the present invention;

fig. 14 is a schematic structural diagram of another display panel according to an embodiment of the present invention;

fig. 15 is a schematic structural diagram of a display device according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described through embodiments with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the basic idea disclosed and suggested by the embodiments of the present invention, are within the scope of the present invention.

Fig. 1 is a schematic structural diagram of a display panel in the prior art, and as shown in fig. 1, the display panel 10 includes a substrate 11, a light emitting unit 12 located on one side of the substrate 11, a color resistance layer 13 located on one side of the light emitting device 12 away from the substrate 11, and a light shielding layer 14 located between adjacent color resistance layers 13, which are sequentially arranged along a thickness direction of the display panel 10. Compared with the method of replacing the polarizer with the color resist layer 13, although the transmittance of the color resist layer 13 is obviously improved compared with that of the polarizer, the external environment light easily enters the display panel 10 through the color resist layer 13 and is reflected and emitted, so that the light emitting rate of the display panel is increased, and meanwhile, the external environment light emitted from the display panel 10 is mixed with the light emitted from the light emitting unit, which seriously affects the display effect of the display panel.

To solve the above technical problem, an embodiment of the present invention provides a display panel, including: a substrate base plate; a plurality of light emitting cells located at one side of the substrate base; the first color filter layer comprises a plurality of first color filter units, is positioned on one side of the light-emitting unit far away from the substrate and covers the light-emitting unit along the thickness direction of the display panel; the second color filter layer comprises a plurality of second color filter units and is positioned on one side of the first color filter units far away from the substrate; the second color filter unit at least partially overlaps the first color filter unit in a thickness direction of the display panel; and a first dielectric layer between the first color filter layer and the second color filter layer. Set up first color filter unit and second color filter unit through the interval, reduce the probability of external environment light through emergent behind the display panel internal reflection, guarantee luminescent unit's normal light-emitting simultaneously, and then ensure display panel's normal display effect.

The above is the core idea of the present invention, and the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative work belong to the protection scope of the present invention.

Fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present invention, fig. 3 is a schematic structural diagram of another display panel according to an embodiment of the present invention, and fig. 4 is a schematic structural diagram of another display panel according to an embodiment of the present invention, as shown in fig. 2, fig. 3, and fig. 4, the display panel 100 includes: a base substrate 101; a plurality of light emitting cells 102 located at one side of the base substrate 101; a first color filter layer 103 including a plurality of first color filter cells 1031 on a side of the light emitting cells away from the base substrate 101, the first color filter cells 1031 covering the light emitting cells 102 in a thickness direction of the display panel 100; a second color filter layer 104 including a plurality of second color filter units 1041 on a side of the first color filter units 1031 away from the substrate 101; the second color filter unit 1041 at least partially overlaps the first color filter unit 1031 in a thickness direction of the display panel 100; and a first dielectric layer 105 between the first color filter layer 103 and the second color filter layer 104.

The substrate 101 may be a rigid substrate or a flexible substrate. The material of the rigid substrate base plate can be glass or silicon wafer. The material of the flexible substrate can be ultrathin glass, metal foil or high polymer plastic material. The present invention is not limited to this, and may be selected according to actual design requirements.

The light emitting unit 102 is located on one side of the substrate 101 and is configured to emit light to realize normal display of the display panel 100, the light emitting unit 102 may be a red light emitting unit, a green light emitting unit, a blue light emitting unit, or a white light emitting unit, and fig. 2, 3, and 4 show that the light emitting unit 102 includes a red light emitting unit, a green light emitting unit, and a blue light emitting unit.

The first color filter layer 103 is located on a side of the light emitting unit away from the substrate 101, and the first color filter layer 103 includes a plurality of first color filter cells 1031, as shown in fig. 2, the colors of the plurality of first color filter cells 1031 may be the same, so as to implement single color display, as shown in fig. 3, the colors of the plurality of first color filter cells 1031 may also be different, so as to implement color display. The first color filter units 1031 for different colors may be spaced apart to avoid optical crosstalk between the outgoing light rays of different colors. The first color filter unit 1031 covers the light emitting unit 102 in a thickness direction of the display panel 100, and the first color filter layer 103 serves to improve color purity of light emitted from the light emitting unit 102, thereby ensuring a display effect of the display panel 100. The second color filter layer 104 is located on a side of the first color filter unit 1031 away from the base substrate 101, the second color filter layer 104 includes a plurality of second color filter units 1041, and colors of the plurality of second color filter units 1041 may be the same or different. The second color filter unit 1041 at least partially overlaps the first color filter unit 1031 in a thickness direction of the display panel 100, and the second color filter unit 1041 may partially overlap the first color filter unit 1031 as shown in fig. 2 and 3 or may entirely overlap as shown in fig. 4. The first dielectric layer 105 is disposed between the first color filter layer and the second color filter layer 104, and the first dielectric layer 105 may be a transparent inorganic insulating material, and functions to space the first color filter layer 103 and the second color filter layer 104, and provides a reflection propagation path for external ambient light reflected by the first color filter unit 1031 to be received by the second color filter unit 1041. The second color filter unit 1041 is configured to receive the external ambient light reflected by the first color filter unit 1031, and prevent the external ambient light from exiting to affect the display effect of the display panel 100. When the second color filter unit 1041 is partially overlapped with the first color filter unit 1031, the colors of the first color filter unit 1031 and the second color filter unit 1041 which are correspondingly arranged may be different, and a part of external environment light is reflected between the first color filter unit 1031 and the second color filter layer 1041, thereby consuming the luminous intensity of the external environment light and reducing the emergence probability of the external environment light. Or, the colors of the first color filter unit 1031 and the second color filter unit 1041, which are correspondingly disposed, may be the same, so that the external environment light reflected by the first color filter unit 1031 is received by the second color filter unit 1041, and since the colors of the first color filter unit 1031 and the second color filter unit 1041 are the same, the external environment light is incident to the first color filter unit 1031, a portion of the light having the same color as the first color filter unit 1031 may pass through the first color filter unit 1031, and the light having a color different from the first color filter unit 1031 may be reflected to the second color filter unit 1041, and since the first color filter unit 1031 and the second color filter unit 1041 have the same color, the light having a color different from the first color filter unit 1031 may not be emitted from the second color filter unit 1041, and may be continuously reflected by the surface of the second color filter unit 1041, and its intensity may be consumed by multiple reflections, thereby reducing the influence on the display effect of the display panel 100. When the second color filter unit 1041 is completely overlapped with the first color filter unit 1031, the colors of the first color filter unit 1031 and the second color filter unit 1041 which are correspondingly arranged at this time are the same, so that the light emitted from the light emitting unit 102 is ensured to realize the normal display of the display panel 100, and meanwhile, the external environment light reflected by the first color filter unit 1031 can be received by the second color filter unit 1041 to be reflected again, thereby consuming the luminous intensity of the external environment light, reducing the emitting probability of the external environment light, and ensuring the display effect of the display panel 100.

According to the embodiment of the invention, the first color filter layer and the second color filter layer are arranged at intervals, so that the probability of emitting external environment light after being reflected by the inside of the display panel is reduced, and meanwhile, the normal light emitting of the light emitting unit is ensured, and the normal display effect of the display panel is further ensured.

As shown in fig. 2 and 4, alternatively, the first color filter unit 1031 and the second color filter unit 1041, which are at least partially overlapped, may have the same color in the thickness direction of the display panel 100.

Wherein, when the external environment light enters the display panel 100, the external environment light reaches the first color filter unit 1031, a portion of the light having the same color as the first color filter unit 1031 passes through the first color filter unit 1031, a portion of the light having a color different from that of the first color filter unit 1031 is reflected to a surface of the second color filter unit 1041 facing the first color filter unit 1031, a portion of the light passing through the first color filter unit 1031 is reflected by an internal film of the display panel 100, the intensity of the external environment light is consumed, and the light is prevented from being emitted, and simultaneously, since the first color filter unit 1031 and the second color filter unit 1041 are partially overlapped and have the same color, the light reflected to the second color filter unit 1041 is also different from that of the second color filter unit 1041, the light cannot be emitted through the second color filter unit 1041, but is reflected again by a surface of the second color filter unit 1041, and multiple reflections may occur between the internal films of the display panel 100, the intensity of the external ambient light is consumed, and the display effect of the display panel 100 is ensured.

Fig. 5 is a schematic top view structure diagram of a display panel according to an embodiment of the present invention, and with continued reference to fig. 1 and fig. 5, optionally, the second color filter unit 1041 includes a color filter portion 1042 and a hollow portion 1043, in a thickness direction of the display panel 100, a gap between the color filter portion 1042 and two adjacent light emitting units 102 at least partially overlaps, and the hollow portion 1043 and the light emitting units 102 at least partially overlap.

The second color filter unit 1041 may be disposed in a whole layer or partially, but in order to ensure the light emitting effect of the display panel 100, the color filter portion 1042 surrounds the hollow portion 1043, and the second color filter unit 1041 emits the light emitted from the light emitting unit 102 through the hollow portion 1043, so as to reduce the light emitting loss of the display panel 100 and ensure the display effect of the display panel 100. The color filter portion 1042 of the second color filter unit 1041 is configured to receive the external ambient light reflected by the first color filter unit 1031, so as to prevent the external ambient light from affecting the normal display of the display panel 100. The overlapping surface between the color filter portion 1042 and the gap between two adjacent light emitting units 102 is properly set to ensure that the color filter portion 1042 receives the amount of light reflected by the first color filter unit 1031, and ensure the intensity consumption of the light in the display panel 100 to the external environment. Meanwhile, the overlapping area of the hollow portion 1043 and the light emitting unit 102 is reasonably set, so that the light emitting range of the display panel 100 is ensured, and the normal display of the display panel 100 is realized.

With continuing reference to fig. 2, 3, and 4, optionally, the first color filter layer 103 further includes a light blocking unit 106; the second color filter unit 1041 at least partially overlaps the light blocking unit 106.

Wherein the first color filter layer 103 further includes a light shielding unit 106, the light shielding unit 106 is located between adjacent first color filter units 1031, the light shielding unit 106 may be a black matrix or a black light shielding material, and the light shielding unit 106 is used to reduce crosstalk of light between light rays emitted through the first color filter units 1031 of different colors. The second color filter unit 1041 is at least partially overlapped with the light blocking unit 106, and when the external ambient light is incident to the first color filter unit 1031, the external ambient light reflected by the first color filter unit 1031 may be received by the second color filter unit 1041, and may be reflected and absorbed multiple times in the internal film layer of the display panel 100, thereby reducing the intensity of the external ambient light, reducing the probability of the external ambient light exiting from the display panel 100, and further ensuring the display effect of the display panel 100.

Fig. 6 is a schematic structural diagram of another display panel according to an embodiment of the present invention, as shown in fig. 6, optionally, along the thickness direction of the display panel 100, the second color filter unit 1041 covers the edge of the light shielding unit 106; the minimum distance between the edge of the orthographic projection of the second color filter unit 1041 on the plane of the substrate base plate 101 and the edge of the orthographic projection of the light shielding unit 106 on the plane of the substrate base plate 101 is a, wherein a is more than or equal to 2 mu m and less than or equal to 3 mu m.

The second color filter unit covers the edge of the light shielding unit 106, and the coverage area of the second color filter unit 1041 is reasonably set, so that the amount of the external environment light reflected by the first color filter unit 1031 received by the second color filter unit 1041 is ensured, and the emission of the external environment light from the display panel 100 is reduced. Meanwhile, since the second color filter unit 1041 is located on the light emitting path of the light emitted from the light emitting unit 102, the distance between the edge of the orthographic projection of the second color filter unit 1041 on the plane of the substrate base plate 101 and the edge of the orthographic projection of the light shielding unit 106 on the plane of the substrate base plate 101 is reasonably set, the light emitting effect of the light emitted from the light emitting unit 102 is ensured while the reflection effect of the second color filter unit 1041 is ensured, and the normal display effect of the display panel 100 is further ensured.

With continued reference to fig. 1, optionally, the light blocking unit 106 covers edges of the second color filter units 1041 in a thickness direction of the display panel 100.

In order to ensure the display effect of the display panel 100, since the light emitted from the light emitting unit 102 passes through the first color filter unit 1031, the color purity is improved, and meanwhile, a certain loss is caused to the emitted light, in order to reduce the loss of the light emitted from the light emitting unit 102, the vertical projection of the second color filter unit 1041 on the light shielding unit 106 can be completely dropped in the light shielding unit 106, so that the light emitting range of the light emitting unit 102 is ensured as much as possible, the probability that the light emitted from the light emitting unit 102 passes through the second color filter unit 1041 is reduced, and the display effect of the display panel 100 is ensured.

Fig. 7 is a schematic structural diagram of another display panel according to an embodiment of the present invention, and fig. 8 is a schematic structural diagram of a top view of another display panel according to an embodiment of the present invention, as shown in fig. 7 and fig. 8, optionally, a gap exists between two adjacent second color filter units 1041.

For example, as shown in fig. 7 and 8, a gap exists between two adjacent second color filter units 1041, because the first color filter layer 103 and the second color filter layer 104 are disposed, light emitted from the light emitting unit 102 in the display panel 100 passes through the first color filter layer 103 and the second color filter layer 104, the light emitting intensity of the light emitted from the light emitting unit 102 may be subjected to a certain loss, and the gap is disposed between two adjacent color filter units, so that a part of the light emitted from the light emitting unit 102 may pass through the gap between two adjacent first color filter units 1031 after passing through the first color filter layer 103, thereby ensuring the overall brightness and the display effect of the display panel 100.

With continued reference to fig. 1 and 5, alternatively, adjacent two second color filter units 1041 are in contact.

For example, as shown in fig. 1, when the external environment light enters the first color filter unit 1031, the light having the same color as the color corresponding to the first color filter unit 1031 passes through the first color filter unit 1031, the light having the different color from the color corresponding to the first color filter unit 1031 is reflected, and at this time, the two adjacent second color filter units 1041 are in direct contact with each other, so that the external environment light reflected by the first color filter unit 1031 is prevented from exiting from the gap between the two adjacent second color filter units 1041, which may affect the display effect of the display panel 100.

With continued reference to fig. 1, optionally, the first color filter unit 1031 has a thickness h1 and the second color filter unit 1041 has a thickness h2, wherein 2 μm ≦ h1+ h2 ≦ 3 μm, in the thickness direction of the display panel 100.

In order to further ensure the display brightness of the display panel 100, the sum of the thicknesses of the first color filter unit 1031 and the second color filter unit 1041 may be controlled to be within a range of 2 μm to 3 μm of the thickness of the single color filter layer along the thickness direction of the display panel 100, so as to ensure the intensity consumption of the external ambient light incident on the display panel 100, and not to affect the display effect of the display panel 100, compared to the display panel 100 in the prior art in which only a single color filter layer is provided.

Fig. 9 is a schematic structural diagram of another display panel according to an embodiment of the present invention, and with continued reference to fig. 2, fig. 3, fig. 4, fig. 6, fig. 7, and fig. 9, optionally, a surface of the first color filter unit 1031 facing the second color filter unit 1041 is a flat surface or a first curved surface 111, and the first curved surface 111 is convex facing the second color filter unit 1041.

A surface of the first color filter unit 1031 facing the second color filter unit 1041 may be a flat surface or a first curved surface 111. With continued reference to fig. 2, 3, 4, 6, and 7, a surface of the first color filter unit 1031 facing the second color filter unit 1041 may be a plane, so that ambient light incident to the display panel 100 is reflected by the first color filter unit 1031 facing the surface of the second color filter unit 1041, and after multiple reflections, the intensity of the ambient light is reduced, thereby preventing the ambient light from exiting and affecting the normal display effect of the display panel 100. As shown in fig. 9, a surface of the first color filter unit 1031 facing the second color filter unit 1041 may be a first curved surface 111, which protrudes toward the second color filter unit 1041 along the first curved surface 111, deflects a part of the light with a small angle in the external environment light incident to the display panel 100 to emit light with a large angle, and is received by the second color filter unit 1041, and is absorbed or reflected again, thereby reducing the intensity and the emission probability of the external environment light, and ensuring the display effect of the display panel 100. The first curved surface 111 has a larger surface area than a plane, and can receive more external ambient light incident to the first color filter unit 1031, reflect part of the external ambient light, and reduce the luminous intensity of the external ambient light. Meanwhile, the surface of the first color filter unit 1031 facing one side of the second color filter unit 1041 is a first curved surface 111, and protrudes towards one side of the second color filter unit 1041 along the first curved surface, and the included angle between the tangent of any point in the first curved surface 111 and the extending direction of the substrate base plate 101 is smaller than 30 degrees, so that the bending degree of the curved surface is reasonably controlled, the light is emitted from the front view angle of the light emitting unit 102, and the normal display of the display panel 100 is further ensured.

Fig. 10 is a schematic structural diagram of another display panel according to an embodiment of the present invention, and fig. 11 is a schematic structural diagram of another display panel according to an embodiment of the present invention, and with continued reference to fig. 2, fig. 3, fig. 4, fig. 6, fig. 7, fig. 9, fig. 10, and fig. 11, optionally, a surface of the second color filter unit 1041 facing the first color filter unit 1031 side is a flat surface or a second curved surface 112, and the second curved surface 112 is recessed toward the first color filter unit 1031 side.

Here, a surface of the second color filter unit 1041 facing the first color filter unit 1031 may be a flat surface or a second curved surface 112, and with continued reference to fig. 2, 3, 4, 6, 7, and 9, a surface of the second color filter unit 1041 facing the first color filter unit 1031 may be a flat surface for receiving the external ambient light reflected by the first color filter unit 1031. Further, as shown in fig. 10, in order to increase the amount of the received external environment light, a surface of the second color filter unit 1041 facing the first color filter unit 1031 side is a second curved surface 112, and the second curved surface 112 is recessed toward the first color filter unit 1031 side. The second curved surface 112 has a larger surface area than a plane surface, and is capable of receiving more external ambient light reflected to the second color filter unit 1041 by the first color filter unit 1031, thereby increasing intensity consumption of the external ambient light. As shown in fig. 11, when the surface of the first color filter unit 1031 facing the second color filter unit 1041 is the first curved surface 111 and the surface of the second color filter unit 1041 facing the first color filter unit 1031 is the second curved surface 112, the bending degree of the second color filter unit 1041 may be gradually changed in cooperation with the protruding degree of the first color filter unit 1031, in order to ensure the uniformity of the overall thicknesses of the first color filter unit 1031 and the second color filter unit 1041, and simultaneously ensure the uniform emergence of light rays after the light rays emitted from the display panel 100 pass through the first color filter unit 1031 and the second color filter unit 1041, thereby improving the display uniformity of the display panel 100.

Fig. 12 is a schematic structural diagram of another display panel according to an embodiment of the present invention, as shown in fig. 12, optionally, the first color filter unit 1031 includes a first sub color filter unit 1032, a second sub color filter unit 1033, and a third sub color filter unit 1034, the reflectance of the first sub color filter unit 1032 is greater than that of the second sub color filter unit 1033, and the reflectance of the first sub color filter unit 1032 is greater than that of the third sub color filter unit 1034; the surface of the first sub color filter unit 1032 facing the second color filter unit 1041 is a first sub curved surface 1110, the surface of the first sub color filter unit 1032 facing the substrate base plate 101 is a first plane 1111, and the maximum included angle between the tangent of any point in the first sub curved surface 1110 and the first plane 1111 is a first included angle α 1; the surface of the second sub color filter unit 1033 facing the second color filter unit 1041 is a second sub curved surface 1112, the surface of the second sub color filter unit 1033 facing the substrate 101 is a second plane 1113, and the maximum included angle between the tangent of any point in the second sub curved surface 1112 and the second plane 1113 is a second included angle α 2; the surface of the third sub color filter unit 1034 facing the second color filter unit 1041 is a third sub curved surface 1114, the surface of the third sub color filter unit 1034 facing the substrate 101 is a third plane 1115, a maximum included angle between a tangent of any point in the third sub curved surface 1114 and the third plane 1115 is a third included angle α 3, the first included angle α 1 is smaller than a second included angle α 2, and the second included angle α 2 is smaller than the third included angle α 3.

When the display panel 100 performs color display, the first color filter unit 1031 includes a first sub color filter unit 1032, a second sub color filter unit 1033, and a third sub color filter unit 1034, and the first sub color filter unit 1032, the second sub color filter unit 1033, and the third sub color filter unit 1034 may be one of a red color filter unit, a green color filter unit, or a blue color filter unit, and specific selection may be selected according to actual design requirements, which is not specifically limited in the embodiments of the present invention. The reflectance of the first sub color filter unit 1032 is greater than that of the second sub color filter unit 1033, and the reflectance of the first sub color filter unit 1032 is greater than that of the third sub color filter unit 1034; the surface of the first sub color filter unit 1032 facing the second color filter unit 1041 has a greater reflection capability to the received external ambient light than the surface of the second sub color filter unit 1033 facing the second color filter unit 1041, and the surface of the first sub color filter unit 1032 facing the second color filter unit 1041 has a greater reflection capability to the received external ambient light than the surface of the third sub color filter unit 1034 facing the second color filter unit 1041. In order to ensure the overall reflection effect of the inside of the display panel 100 to the external environment light, the degrees of protrusion of the surfaces of the first sub color filter unit 1032, the second sub color filter unit 1033, and the third sub color filter unit 1034 facing the second color filter unit 1041 side may be set to be different, thereby controlling the reflection capability of the first sub color filter unit 1032, the second sub color filter unit 1033, and the third sub color filter unit 1034 to the external environment light. The surface of the first sub color filter unit 1032 facing the second color filter unit 1041 is a first sub curved surface 1110, the surface of the first sub color filter unit 1032 facing the substrate base plate 101 is a first plane 1111, and the maximum included angle between the tangent of any point in the first sub curved surface 1110 and the first plane 1111 is a first included angle α 1; the surface of the second sub color filter unit 1033 facing the second color filter unit 1041 is a second sub curved surface 1112, the surface of the second sub color filter unit 1033 facing the substrate 101 is a second plane 1113, and the maximum included angle between the tangent of any point in the second sub curved surface 1112 and the second plane 1113 is a second included angle α 2; the surface of the third sub color filter unit 1034 facing the second color filter unit 1041 is a third sub curved surface 1114, the surface of the third sub color filter unit 1034 facing the substrate 101 is a third plane 1115, a maximum included angle between a tangent of any point in the third sub curved surface 1114 and the third plane 1115 is a third included angle α 3, the first included angle α 1 is smaller than the second included angle α 2, the second included angle α 2 is smaller than the third included angle α 3, the reflection capability of the first sub-curved surface 1110 of the first sub-color filter unit 1032 to the received external environment light is smaller than the reflection capability of the second sub-curved surface 1112 of the second sub-color filter unit 1033 to the received external environment light, and the reflection capability of the first sub-curved surface 1110 of the first sub-color filter unit 1032 to the received external environment light is smaller than the reflection capability of the third sub-curved surface 1114 of the third sub-color filter unit 1034 to the received external environment light. Meanwhile, the external environment light reflected by different color filter subunits is received by the corresponding second color filter unit 1041, because the first color filter unit 1031 and the second color filter unit 1041 are correspondingly arranged and have the same color, the reflected external environment light cannot be emitted, the reflection capability of the external environment light entering the display panel 100 is regulated, the external environment light is ensured to enter different first color filter units 1031, the reflection effect is the same, the emission of the external environment light is avoided, and the display effect of the display panel 100 is influenced.

Fig. 13 is a schematic structural diagram of another display panel according to an embodiment of the present invention, as shown in fig. 13, optionally, the light emitting unit 102 includes a first light emitting unit 1021, a second light emitting unit 1022 and a third light emitting unit 1023, the second color filter unit 1041 includes a second color filter unit 1044, a second color filter unit 1045 and a second color filter unit 1046, a hollow-out portion 1043 of the second color filter unit 1044 at least partially overlaps the first light emitting unit 1021, a hollow-out portion 1043 of the second color filter unit 1045 at least partially overlaps the second light emitting unit 1022, and a hollow-out portion 1043 of the second color filter unit 1046 at least partially overlaps the third light emitting unit 1023 along a thickness direction of the display panel 100; the light emitting area of the first light emitting unit 1021 is smaller than that of the second light emitting unit 1022, and the light emitting area of the second light emitting unit 1022 is smaller than that of the third light emitting unit 1023; the coverage area of the second color filter unit 1044 is larger than that of the second color filter unit 1045, and the coverage area of the second color filter unit 1045 is larger than that of the second color filter unit 1046.

Wherein, the light emitting unit 102 includes a first light emitting unit 1021, a second light emitting unit 1022 and a third light emitting unit 1023, the first light emitting unit 1021, the second light emitting unit 1022 and the third light emitting unit 1023 can be the light emitting units 102 emitting light rays with different colors or the light emitting units 102 emitting light rays with the same color, the second color filter unit 1041 includes a second color filter unit 1044, a second color filter unit 1045 and a second color filter unit 1046, the second color filter unit 1044, the second color filter unit 1045 and the second color filter unit 1046 can be color filter units with different colors or color filter units with the same color, the first light emitting unit 1021, the second light emitting unit 1022 and the third light emitting unit are light emitting units with different colors, the corresponding second color filter unit 1044, the second color filter unit 1045 and the second color filter unit 1046 are color filter units with different colors for illustration, in order to ensure the overall display effect of the display panel 100, the light emitting unit 102 emits light through the first color filter unit 1031 and the hollow 1043 of the second color filter unit 1041, but because the light emitting areas of the light emitting units 102 of different colors are different, the light emitting area of the first light emitting unit 1021 is smaller than that of the second light emitting unit 1022, the light emitting area of the second light emitting unit 1022 is smaller than that of the third light emitting unit 1023, and further the covering areas of the first color filter unit 1031 and the second color filter unit 1041 corresponding to the first light emitting unit 1021 are smaller than that of the first color filter unit 1031 and the second color filter unit 1041 corresponding to the second light emitting unit 1023, and the covering areas of the first color filter unit 1031 and the second color filter unit 1041 corresponding to the second light emitting unit 1022 are smaller than that of the third light emitting unit 1023, in order to further ensure the reflection effect of the display panel 100 on the external environment light, in the thickness direction of the display panel 100, the hollowed-out portion 1043 of the second color filter unit 1044 at least partially overlaps the first light-emitting unit 1021, the hollowed-out portion 1043 of the second lateral color filter unit 1045 at least partially overlaps the second light-emitting unit 1022, and the hollowed-out portion 1043 of the second lateral color filter unit 1046 at least partially overlaps the third light-emitting unit 1023; the coverage area of the second color filter unit 1044 is greater than that of the second color filter unit 1045, and the coverage area of the second color filter unit 1045 is greater than that of the second color filter unit 1046, so that the receiving capability of the external environment light reflected by the first color filter unit 1031 is ensured, the emitting probability of the external environment light is reduced, and the display effect of the display panel 100 is ensured.

Fig. 14 is a schematic structural diagram of another display panel according to an embodiment of the present invention, and as shown in fig. 14, optionally, the light emitting unit 102 includes a first light emitting unit 1021, a second light emitting unit 1022, and a third light emitting unit 1023, and the first color filter unit 1031 includes a fourth color filter sub-unit 1035, a fifth color filter sub-unit 1036, and a sixth color filter sub-unit 1037; in the thickness direction of the display panel 100, the fourth sub color filter unit 1035 covers the first light emitting unit 1021, the fifth sub color filter unit 1036 covers the second light emitting unit 1022, and the sixth sub color filter unit 1037 covers the third light emitting unit 1023; the light emitting area of the first light emitting unit 1021 is smaller than that of the second light emitting unit 1022, and the light emitting area of the second light emitting unit 1022 is smaller than that of the third light emitting unit; the surface of the fourth sub color filter unit 1035 facing the second color filter unit 1041 is a fourth sub curved surface 1116, the surface of the fourth sub color filter unit 1035 facing the substrate 101 is a fourth plane 1117, and the maximum included angle between the tangent of any point in the fourth sub curved surface 1116 and the fourth plane 1117 is a fourth included angle α 4; the surface of the fifth sub color filter unit 1036 facing the second color filter unit 1041 is a fifth sub curved surface 1118, the surface of the fifth sub color filter unit 1036 facing the substrate base plate 101 is a fifth plane 1119, and a maximum included angle between a tangent of any point in the fifth sub curved surface 1118 and the fifth plane 1119 is a fifth included angle α 5; a sixth sub curved surface 1120 is formed on a surface of the sixth sub color filter unit 1037 facing the second color filter unit 1041, a sixth plane 1121 is formed on a surface of the sixth sub color filter unit 1037 facing the substrate 101, and a maximum included angle between a tangent of any point of the sixth sub curved surface 1120 and the sixth plane 1121 is a sixth included angle α 6; fourth included angle α 4 is greater than fifth included angle α 5, and fifth included angle α 5 is greater than sixth included angle α 6.

Wherein, since the light emitting area of the first light emitting unit 1021 is smaller than the light emitting area of the second light emitting unit 1022, the light emitting area of the second light emitting unit 1022 is smaller than the light emitting area of the third light emitting unit, the covering area of the corresponding fourth sub color filter unit 1035 is smaller than the covering area of the fifth sub color filter unit 1036, and the covering area of the fifth sub color filter unit 1036 is smaller than the covering area of the sixth sub color filter unit 1037, in order to ensure the reflection capability of the fourth sub color filter unit 1035, the fifth sub color filter unit 1036, and the sixth sub color filter unit 1037 to the received external ambient light, the surface of the fourth sub color filter unit 1035 facing the second color filter unit 1041 side is changed to a fourth sub curved surface 1116, and the surface of the fourth sub color filter unit 1035 facing the second color filter unit 1041 side is a fourth flat surface 1117, the maximum included angle between the tangent line of any point in the fourth sub-curved surface 1116 and the fourth plane 1117 is a fourth included angle α 4; the surface of the fifth sub color filter unit 1036 facing the second color filter unit 1041 is a fifth sub curved surface 1118, the surface of the fifth sub color filter unit 1036 facing the substrate base plate 101 is a fifth plane 1119, and a maximum included angle between a tangent of any point in the fifth sub curved surface 1118 and the fifth plane 1119 is a fifth included angle α 5; a sixth sub curved surface 1120 is formed on a surface of the sixth sub color filter unit 1037 facing the second color filter unit 1041, a sixth plane 1121 is formed on a surface of the sixth sub color filter unit 1037 facing the substrate 101, and a maximum included angle between a tangent of any point of the sixth sub curved surface 1120 and the sixth plane 1121 is a sixth included angle α 6; the fourth included angle alpha 4 is larger than the fifth included angle alpha 5, the fifth included angle alpha 5 is larger than the sixth included angle alpha 6, so that the reflection capability of the fourth sub-curved surface 1116 of the fourth sub-color filter unit 1035 to the external environment light is greater than that of the fifth sub-curved surface 1118 of the fifth sub-color filter unit 1036 to the external environment light, the reflection capability of the fifth sub-curved surface 1118 of the fifth sub-color filter unit 1036 to the external environment light is greater than that of the sixth sub-curved surface 1120 of the sixth sub-color filter unit 1037 to the external environment light, thereby ensuring that the external ambient light reflection abilities of the first color filter units 1031 of different colors are the same, and at the same time, the color of the second color filter unit 1041, which is correspondingly disposed, is changed in the thickness direction of the display panel 100, the corresponding first color filter unit 1031 and the second color filter unit 1041 have the same color, so as to further reduce the probability of emitting external ambient light, and ensure the display effect of the display panel 100.

Based on the same inventive concept, fig. 15 is a schematic structural diagram of a display device according to an embodiment of the present invention, and as shown in fig. 15, a display device 200 includes the display panel 100 according to the above embodiment.

It should be noted that, since the display device provided in the present embodiment has the same or corresponding advantages of the display panel 100 of the foregoing embodiment, no further description is provided herein. The display device 200 provided in the embodiment of the present invention may be a mobile phone shown in fig. 15, and may also be any electronic product with a display function, including but not limited to the following categories: the touch screen display device comprises a television, a notebook computer, a desktop display, a tablet computer, a digital camera, an intelligent bracelet, intelligent glasses, a vehicle-mounted display, medical equipment, industrial control equipment, a touch interaction terminal and the like, and the embodiment of the invention is not particularly limited to this.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A display panel, comprising:

a substrate base plate;

a plurality of light emitting cells located at one side of the substrate base;

2. The display panel according to claim 1, wherein the first color filter unit and the second color filter unit that at least partially overlap are the same in color in a thickness direction of the display panel.

3. The display panel according to claim 1, wherein the second color filter unit includes a color filter portion at least partially overlapping a gap between two adjacent light emitting units in a thickness direction of the display panel, and a hollowed portion at least partially overlapping the light emitting units.

4. The display panel according to claim 1, wherein the first color filter layer further comprises a light shielding unit;

the second color filter unit at least partially overlaps the light blocking unit.

5. The display panel according to claim 4, wherein the second color filter unit covers an edge of the light shielding unit in a thickness direction of the display panel;

the minimum distance between the edge of the orthographic projection of the second color filter unit on the plane of the substrate base plate and the edge of the orthographic projection of the light shading unit on the plane of the substrate base plate is a, wherein a is more than or equal to 2 mu m and less than or equal to 3 mu m.

6. The display panel according to claim 4, wherein the light shielding unit covers edges of the second color filter units in a thickness direction of the display panel.

7. The display panel according to claim 1, wherein a gap exists between adjacent two of the second color filter units.

8. The display panel according to claim 1, wherein adjacent two of the second color filter units are in contact.

9. The display panel of claim 1, wherein the first color filter unit has a thickness of h1 and the second color filter unit has a thickness of h2, in a thickness direction of the display panel, wherein 2 μm ≦ h1+ h2 ≦ 3 μm.

10. The display panel according to claim 2, wherein a surface of the first color filter unit facing the second color filter unit side is a flat surface or a first curved surface, and the first curved surface is convex toward the second color filter unit side.

11. The display panel according to claim 1, wherein a surface of the second color filter unit facing the first color filter unit side is a flat surface or a second curved surface recessed toward the first color filter unit side.

12. The display panel according to claim 10, wherein the first color filter unit includes a first sub color filter unit, a second sub color filter unit, and a third sub color filter unit, a reflectivity of the first sub color filter unit is greater than a reflectivity of the second sub color filter unit, and a reflectivity of the first sub color filter unit is greater than a reflectivity of the third sub color filter unit;

the surface of one side, facing the second color filter unit, of the first sub color filter unit is a first sub curved surface, the surface, facing the substrate base plate, of the first sub color filter unit is a first plane, and the maximum included angle between the tangent of any point in the first sub curved surface and the first plane is a first included angle; the surface of one side, facing the second color filtering unit, of the second sub color filtering unit is a second sub curved surface, the surface, facing the substrate side, of the second sub color filtering unit is a second plane, and the maximum included angle between the tangent of any point in the second sub curved surface and the second plane is a second included angle; the surface of one side, facing the second color filter unit, of the third sub color filter unit is a third sub curved surface, the surface of one side, facing the substrate base plate, of the third sub color filter unit is a third plane, the maximum included angle between the tangent of any point in the third sub curved surface and the included angle of the third plane is a third included angle, the first included angle is smaller than the second included angle, and the second included angle is smaller than the third included angle.

13. The display panel according to claim 3, wherein the light emitting unit includes a first light emitting unit, a second light emitting unit, and a third light emitting unit, the second color filter unit includes a second color filter unit, a second lateral color filter unit, and a second lateral color filter unit, a cutout in the second color filter unit at least partially overlaps the first light emitting unit, a cutout in the second lateral color filter unit at least partially overlaps the second light emitting unit, and a cutout in the second lateral color filter unit at least partially overlaps the third light emitting unit in a thickness direction of the display panel;

the light emitting area of the first light emitting unit is smaller than that of the second light emitting unit, and the light emitting area of the second light emitting unit is smaller than that of the third light emitting unit; the coverage area of the second color filter unit is larger than that of the second color filter unit, and the coverage area of the second color filter unit is larger than that of the second color filter unit.

14. The display panel according to claim 10, wherein the light emitting unit includes a first light emitting unit, a second light emitting unit, and a third light emitting unit, and the first color filter unit includes a fourth sub color filter unit, a fifth sub color filter unit, and a sixth sub color filter unit; in the thickness direction of the display panel, the first light emitting unit is covered in the fourth sub color filter unit, the second light emitting unit is covered in the fifth sub color filter unit, and the third light emitting unit is covered by the sixth sub color filter unit;

the light-emitting area of the first light-emitting unit is smaller than that of the second light-emitting unit, and the light-emitting area of the second light-emitting unit is smaller than that of the third light-emitting unit; the surface of one side, facing the second color filter unit, of the fourth sub color filter unit is a fourth sub curved surface, the surface of one side, facing the substrate base plate, of the fourth sub color filter unit is a fourth plane, and the maximum included angle between the tangent of any point in the fourth sub curved surface and the fourth plane is a fourth included angle; the surface of one side, facing the second color filter unit, of the fifth sub color filter unit is a fifth sub curved surface, the surface, facing the substrate base plate, of the fifth sub color filter unit is a fifth plane, and the maximum included angle between the tangent of any point in the fifth sub curved surface and the fifth plane is a fifth included angle; the surface of one side, facing the second color filter unit, of the sixth sub color filter unit is a sixth sub curved surface, the surface, facing the substrate base plate, of the sixth sub color filter unit is a sixth plane, and the maximum included angle between the tangent of any point of the sixth sub curved surface and the sixth plane is a sixth included angle; the fourth included angle is greater than the fifth included angle, and the fifth included angle is greater than the sixth included angle.

15. A display device characterized by comprising the display panel according to any one of claims 1 to 14.