A display panel and a display device thereof

Abstract

Embodiments of the present invention disclose a display panel and a display device thereof, comprising: a substrate; a plurality of light-emitting units located on one side of the substrate; a first color filter layer including a plurality of first color filter units located on the side of the light-emitting units away from the substrate, and along the thickness direction of the display panel, the first color filter units cover the light-emitting units; a second color filter layer including a plurality of second color filter units located on the side of the first color filter units away from the substrate; along the thickness direction of the display panel, the second color filter units at least partially overlap with the first color filter units; and a first dielectric layer located between the first color filter layer and the second color filter layer. By arranging the first color filter units and the second color filter units at intervals, the probability of external ambient light being emitted after being reflected inside the display panel is reduced, and at the same time, the normal light emission of the light-emitting units is ensured, thereby ensuring the normal display effect of the display panel.

Description

Technical Field

[0001] Embodiments of the present invention relate to the technical field of display panels, and in particular, to a display panel and a display device thereof. Background Art

[0002] With the development of display panel technology, the technology of depositing color filters after thin film encapsulation (CFOT) has been widely used in the field of display panel manufacturing. However, external environmental light incident on the inside of the display panel will be reflected by the color filters, seriously affecting the display effect of the display panel. Summary of the Invention

[0003] Embodiments of the present invention provide a display panel and a display device thereof, so as to reduce the probability of external incident light exiting the display panel again and ensure the display effect of the display panel.

[0004] In a first aspect, embodiments of the present invention provide a display panel, including:

[0005] A substrate;

[0006] A plurality of light-emitting units, located on one side of the substrate;

[0007] A first color filter layer, including a plurality of first color filter units, located on the side of the light-emitting units away from the substrate, and along the thickness direction of the display panel, the first color filter units cover the light-emitting units;

[0008] A second color filter layer, including a plurality of second color filter units, located on the side of the first color filter units away from the substrate; along the thickness direction of the display panel, the second color filter units at least partially overlap with the first color filter units;

[0009] A first dielectric layer, located between the first color filter layer and the second color filter layer.

[0010] In a second aspect, embodiments of the present invention further provide a display device, and the display device includes the display panel according to any one of the first aspects.

[0011] The present invention provides a display panel, including a first color filter layer, a first dielectric layer, and a second color filter layer. The first color filter layer includes a plurality of first color filter units, the second color filter layer includes a plurality of second color filter units, and the second color filter units at least partially overlap 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, consuming the intensity of the reflected light and reducing the probability of external light exiting the display panel, thereby improving the display effect of the display panel. Description of the Drawings

[0012] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, although the drawings in the following description are some specific embodiments of the present invention, for those skilled in the art, according to the basic concepts of the device structure, driving method, and manufacturing method disclosed and prompted by various embodiments of the present invention, they can be extended and extended to other structures and drawings. Undoubtedly, these should all be within the scope of the claims of the present invention.

[0013] Figure 1 It is a schematic structural diagram of a display panel in the prior art;

[0014] Figure 2 It is a schematic structural diagram of a display panel provided by an embodiment of the present invention;

[0015] Figure 3 It is a schematic structural diagram of another display panel provided by an embodiment of the present invention;

[0016] Figure 4 It is a schematic structural diagram of another display panel provided by an embodiment of the present invention;

[0017] Figure 5 It is a schematic top view structural diagram of a display panel provided by an embodiment of the present invention;

[0018] Figure 6 It is a schematic structural diagram of another display panel provided by an embodiment of the present invention;

[0019] Figure 7 It is a schematic structural diagram of another display panel provided by an embodiment of the present invention;

[0020] Figure 8 It is a schematic top view structural diagram of another display panel provided by an embodiment of the present invention;

[0021] Figure 9 It is a schematic structural diagram of another display panel provided by an embodiment of the present invention;

[0022] Figure 10 It is a schematic structural diagram of another display panel provided by an embodiment of the present invention;

[0023] Figure 11 It is a schematic structural diagram of another display panel provided by an embodiment of the present invention;

[0024] Figure 12 It is a schematic structural diagram of another display panel provided by an embodiment of the present invention;

[0025] Figure 13 It is a schematic structural diagram of another display panel provided by an embodiment of the present invention;

[0026] Figure 14 A schematic structural diagram of another display panel provided by an embodiment of the present invention;

[0027] Figure 15 A schematic structural diagram of a display device provided by an embodiment of the present invention. Detailed implementation manners

[0028] To make the objectives, technical solutions, and advantages of the present invention clearer, the following will refer to the accompanying drawings in the embodiments of the present invention, and clearly and completely describe the technical solutions of the present invention through implementation manners. Apparently, the described embodiments are some but not all of the embodiments of the present invention. Based on the basic concepts disclosed and suggested by the embodiments in the present invention, all other embodiments obtained by those skilled in the art fall within the protection scope of the present invention.

[0029] Figure 1 A schematic structural diagram of a display panel in the prior art, as Figure 1 shown. The display panel 10 includes a substrate 11, a light-emitting unit 12 located on one side of the substrate 11, a color filter layer 13 located on the side of the light-emitting device 12 away from the substrate 11, and a light-shielding layer 14 located between adjacent color filter layers 13, in the thickness direction of the display panel 10. Compared with using the color filter layer 13 to replace the polarizer, although the transmittance of the color filter layer 13 is significantly higher than that of the polarizer, external ambient light easily enters the interior of the display panel 10 through the color filter layer 13 and is reflected and emitted, increasing the light output rate of the display panel. At the same time, the external ambient light emitted from the display panel 10 is mixed with the light emitted from the light-emitting unit, seriously affecting the display effect of the display panel.

[0030] To solve the above technical problems, an embodiment of the present invention provides a display panel, including: a substrate; a plurality of light-emitting units located on one side of the substrate; a first color filter layer including a plurality of first color filter units, located on the side of the light-emitting units away from the substrate, and covering the light-emitting units in the thickness direction of the display panel; a second color filter layer including a plurality of second color filter units, located on the side of the first color filter units away from the substrate; in the thickness direction of the display panel, the second color filter units at least partially overlap with the first color filter units; and a first dielectric layer located between the first color filter layer and the second color filter layer. By spacing the first color filter units and the second color filter units, the probability of external ambient light being reflected inside the display panel and then emitted is reduced, while ensuring the normal light output of the light-emitting units, thereby ensuring the normal display effect of the display panel.

[0031] The above is the core idea of the present invention. Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention.

[0032] Figure 2 It is a schematic structural diagram of a display panel provided by an embodiment of the present invention. Figure 3 It is a schematic structural diagram of another display panel provided by an embodiment of the present invention. Figure 4 It is a schematic structural diagram of another display panel provided by an embodiment of the present invention. As Figure 2 、 Figure 3 and Figure 4 shown, the display panel 100 includes: a substrate 101; a plurality of light-emitting units 102 located on one side of the substrate 101; a first color filter layer 103 including a plurality of first color filter units 1031, located on the side of the light-emitting unit away from the substrate 101, and along the thickness direction of the display panel 100, the first color filter unit 1031 covers the light-emitting unit 102; a second color filter layer 104 including a plurality of second color filter units 1041, located on the side of the first color filter unit 1031 away from the substrate 101; along the thickness direction of the display panel 100, the second color filter unit 1041 and the first color filter unit 1031 at least partially overlap; a first dielectric layer 105 located between the first color filter layer 103 and the second color filter layer 104.

[0033] Among them, the substrate 101 can be a rigid substrate or a flexible substrate. The material of the rigid substrate can be glass or silicon wafer. The material of the flexible substrate can be ultra-thin glass, metal foil or polymer plastic material. The present invention does not make specific limitations in this regard and can be selected according to actual design requirements.

[0034] The light-emitting unit 102 is located on one side of the substrate 101 and is used to emit light to realize the normal display of the display panel 100. The light-emitting unit 102 can be a red light-emitting unit, a green light-emitting unit, a blue light-emitting unit or a white light-emitting unit. Figure 2 、 Figure 3 and Figure 4 All show the light-emitting unit 102 including a red light-emitting unit, a green light-emitting unit, and a blue light-emitting unit as an example.

[0035] The first color filter layer 103 is located on the side of the light-emitting unit away from the substrate 101. The first color filter layer 103 includes a plurality of first color filter units 1031. As Figure 2 shown, the colors of the plurality of first color filter units 1031 can be the same to achieve single-color display. As Figure 3As shown, the colors of multiple first color filter units 1031 can also be different to achieve color display. The first color filter units 1031 with different colors can be arranged at intervals to avoid optical crosstalk between the emitted light rays of different colors. Along the thickness direction of the display panel 100, the first color filter unit 1031 covers the light-emitting unit 102, and the first color filter layer 103 is used to improve the color purity of the light emitted by the light-emitting unit 102 and ensure the display effect of the display panel 100. The second color filter layer 104 is located on the side of the first color filter unit 1031 away from the substrate 101. The second color filter layer 104 includes multiple second color filter units 1041, and the colors of the multiple second color filter units 1041 can be the same or different. Along the thickness direction of the display panel 100, the second color filter unit 1041 at least partially overlaps with the first color filter unit 1031. The second color filter unit 1041 can partially overlap with the first color filter unit 1031, as shown in Figure 2 and Figure 3 shown, or can completely overlap, as shown in Figure 4As shown. The first dielectric layer 105 is located between the first color filter layer and the second color filter layer 104. The first dielectric layer 105 can be a transparent inorganic insulating material, which serves to separate the first color filter layer 103 and the second color filter layer 104, and provides a reflection propagation path for the external ambient light reflected by the first color filter unit 1031, enabling it to be received by the second color filter unit 1041. The second color filter unit 1041 is used to receive the external ambient light reflected by the first color filter unit 1031, preventing the external ambient light from exiting and affecting the display effect of the display panel 100. When a part of the second color filter unit 1041 overlaps with the first color filter unit 1031, the colors of the correspondingly arranged first color filter unit 1031 and second color filter unit 1041 can be different. A part of the external ambient light is reflected between the first color filter unit 1031 and the second color filter layer 1041, consuming the luminous intensity of the external ambient light and reducing the probability of the external ambient light exiting. Or, the colors of the correspondingly arranged first color filter unit 1031 and second color filter unit 1041 can be the same, such that the external ambient light reflected by the first color filter unit 1031 is received by the second color filter unit 1041. Since the colors of the first color filter unit 1031 and the second color filter unit 1041 are the same, when the external ambient light is incident on the first color filter unit 1031, part of the light with the same color as the first color filter unit 1031 will pass through the first color filter unit 1031, and the light with a color different from that of the first color filter unit 1031 will be reflected to the second color filter unit 1041. Since the colors of the first color filter unit 1031 and the second color filter unit 1041 are the same, the light with a color different from that of the first color filter unit 1031 cannot exit from the second color filter unit 1041 and will continue to be reflected on the surface of the second color filter unit 1041, consuming its intensity through multiple reflections and reducing its impact on the display effect of the display panel 100. When the second color filter unit 1041 completely overlaps with the first color filter unit 1031, at this time, the colors of the correspondingly arranged first color filter unit 1031 and second color filter unit 1041 are the same, ensuring that the light emitted by the light-emitting unit 102 enables the normal display of the display panel 100. At the same time, all the external ambient light reflected by the first color filter unit 1031 can be received by the second color filter unit 1041 for re-reflection, consuming the luminous intensity of the external ambient light and reducing the probability of the external ambient light exiting, ensuring the display effect of the display panel 100.

[0036] In the embodiment of the present invention, by spacing the first color filter layer and the second color filter layer, the probability of the external ambient light exiting after being reflected inside the display panel is reduced, and at the same time, the normal light emission of the light-emitting unit is ensured, thereby ensuring the normal display effect of the display panel.

[0037] Continue to refer to Figure 2 and Figure 4As shown, optionally, in the thickness direction of the display panel 100, the colors of the first color filter unit 1031 and the second color filter unit 1041 that at least partially overlap are the same.

[0038] Wherein, when external ambient light enters the display panel 100, the external ambient light reaches the first color filter unit 1031. Part of the light with the same color as the first color filter unit 1031 passes through the first color filter unit 1031, and the part of the light with a different color from the first color filter unit 1031 is reflected to the surface of the second color filter unit 1041 facing the first color filter unit 1031. Part of the light passing through the first color filter unit 1031 is reflected by the internal film layer of the display panel 100, consuming the intensity of the external ambient light and preventing it from exiting. At the same time, since the first color filter unit 1031 and the second color filter unit 1041 partially overlap and have the same color, the light reflected to the second color filter unit 1041 also has a different color from the second color filter unit 1041, and the light cannot pass through the second color filter unit 1041 and exit, but will be reflected again by the surface of the second color filter unit 1041 and can be reflected multiple times between the internal film layers of the display panel 100, consuming the intensity of the external ambient light and ensuring the display effect of the display panel 100.

[0039] Figure 5 It is a schematic top view structure diagram of a display panel provided by an embodiment of the present invention. Continuing to refer to FIG. 1 and Figure 5 Optionally, the second color filter unit 1041 includes a color filter portion 1042 and a hollow portion 1043. In the thickness direction of the display panel 100, the color filter portion 1042 at least partially overlaps with the gap between two adjacent light-emitting units 102, and the hollow portion 1043 at least partially overlaps with the light-emitting unit 102.

[0040] Wherein, the second color filter unit 1041 can be provided as a whole layer or partially. However, to ensure the light-emitting effect of the display panel 100, the color filter portion 1042 surrounds the hollow portion 1043. The second color filter unit 1041 emits the light emitted by the light-emitting unit 102 through the hollow portion 1043, reducing the light-emitting loss of the display panel 100 and ensuring the display effect of the display panel 100. The color filter portion 1042 of the second color filter unit 1041 is used to receive the external ambient light reflected by the first color filter unit 1031, preventing the external ambient light from affecting the normal display of the display panel 100. Reasonably setting the overlapping surface between the color filter portion 1042 and the gap between two adjacent light-emitting units 102 ensures the number of light rays received by the color filter portion 1042 from the reflection of the first color filter unit 1031 and ensures the consumption of the intensity of the external ambient light inside the display panel 100. At the same time, reasonably setting the overlapping area between the hollow portion 1043 and the light-emitting unit 102 ensures the light-emitting range of the display panel 100, thereby realizing the normal display of the display panel 100.

[0041] Continue to refer to Figure 2 、 Figure 3 and Figure 4 Optionally, the first color filter layer 103 further includes a light-shielding unit 106; the second color filter unit 1041 at least partially overlaps with the light-shielding unit 106.

[0042] Among them, 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 can be a black matrix or a black light-shielding material. The light-shielding unit 106 is used to reduce the optical crosstalk between the lights emitted from the first color filter units 1031 of different colors. The second color filter unit 1041 at least partially overlaps with the light-shielding unit 106. When the external ambient light is incident on the first color filter unit 1031, the external ambient light reflected by the first color filter unit 1031 can be received by the second color filter unit 1041 and undergoes multiple reflections and absorptions within the internal film layer of the display panel 100, reducing the intensity of the external ambient light and the probability of the external ambient light exiting from the display panel 100, thereby ensuring the display effect of the display panel 100.

[0043] Figure 6 Another structural schematic diagram of a display panel provided by an embodiment of the present invention is shown in Figure 6 As shown, 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 101 and the edge of the orthographic projection of the light-shielding unit 106 on the plane of the substrate 101 is a, where 2μm ≤ a ≤ 3μm.

[0044] Among them, the second color filter unit covers the edge of the light-shielding unit 106. The coverage area of the second color filter unit 1041 is reasonably set to ensure the number of external ambient light reflected by the first color filter unit 1031 received by the second color filter unit 1041 and reduce the external ambient light exiting from the display panel 100. At the same time, since the second color filter unit 1041 is on the light-emitting path of the light emitted by 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 101 and the edge of the orthographic projection of the light-shielding unit 106 on the plane of the substrate 101 is reasonably set to ensure the reflection effect of the second color filter unit 1041 while ensuring the light-emitting effect of the light emitted by the light-emitting unit 102, thereby ensuring the normal display effect of the display panel 100.

[0045] Continue to refer to Figure 1 Optionally, along the thickness direction of the display panel 100, the light-shielding unit 106 covers the edge of the second color filter unit 1041.

[0046] Among them, to ensure the display effect of the display panel 100, since the light emitted by the light-emitting unit 102 passes through the first color filter unit 1031, the color purity is improved, and at the same time, certain loss will be caused to the emitted light. To reduce the loss of the light emitted by the light-emitting unit 102, the vertical projection of the second color filter unit 1041 on the light-shielding unit 106 can be completely within the light-shielding unit 106, so as to ensure the light-emitting range of the light-emitting unit 102 as much as possible, reduce the probability that the light emitted by the light-emitting unit 102 passes through the second color filter unit 1041, and ensure the display effect of the display panel 100.

[0047] Figure 7 It is a schematic structural diagram of another display panel provided by an embodiment of the present invention. Figure 8 It is a top view structural diagram of another display panel provided by an embodiment of the present invention, as Figure 7 and Figure 8 shown. Optionally, there is a gap between two adjacent second color filter units 1041.

[0048] Among them, by way of example, as Figure 7 and Figure 8 shown, there is a gap between two adjacent second color filter units 1041. Since the first color filter layer 103 and the second color filter layer 104 are provided, the light emitted by 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 respectively, and the luminous intensity of the light emitted by the light-emitting unit 102 will be subject to certain loss. A gap is provided between two adjacent color filter units, so that part of the light emitted by the light-emitting unit 102 can pass through the gap between two adjacent first color filter units 1031 after passing through the first color filter layer 103, ensuring the overall brightness and display effect of the display panel 100.

[0049] Continue to refer to Figure 1 and Figure 5 , optionally, two adjacent second color filter units 1041 are in contact.

[0050] Among them, by way of example, as Figure 1 shown, when external ambient light is incident on the first color filter unit 1031, the light with the same color as the first color filter unit 1031 passes through the first color filter unit 1031, and the light with a color different from that of the first color filter unit 1031 will be reflected. At this time, two adjacent second color filter units 1041 are in direct contact, avoiding the external ambient light reflected by the first color filter unit 1031 from exiting through the gap between two adjacent second color filter units 1041 and affecting the display effect of the display panel 100.

[0051] Continue to refer to Figure 1, Optionally, along the thickness direction of the display panel 100, the thickness of the first color filter unit 1031 is h1, and the thickness of the second color filter unit 1041 is h2, where 2μm ≤ h1 + h2 ≤ 3μm.

[0052] Among them, compared with the display panel 100 with only a single-layer color filter layer in the prior art, to further ensure the display brightness of the display panel 100, along the thickness direction of the display panel 100, the sum of the thicknesses of the first color filter unit 1031 and the second color filter unit 1041 can be controlled within the thickness range of 2μm to 3μm of the single-layer color filter layer, ensuring the consumption of the intensity of the external ambient light incident on the display panel 100, and at the same time not affecting the display effect of the display panel 100.

[0053] Figure 9 This is a schematic structural diagram of another display panel provided by an embodiment of the present invention. Continuing to refer to Figure 2 、 Figure 3 、 Figure 4 、 Figure 6 、 Figure 7 and Figure 9 As shown, optionally, the surface of the first color filter unit 1031 facing the second color filter unit 1041 is a plane or a first curved surface 111, and the first curved surface 111 bulges toward the second color filter unit 1041.

[0054] Among them, the surface of the first color filter unit 1031 facing the second color filter unit 1041 can be a plane or a first curved surface 111. Continuing to refer to Figure 2 、 Figure 3 、 Figure 4 、 Figure 6 and Figure 7 , the surface of the first color filter unit 1031 facing the second color filter unit 1041 can be a plane, so as to reflect the external ambient light incident on the display panel 100 through the surface of the first color filter unit 1031 facing the second color filter unit 1041. After multiple reflections, the intensity of the external ambient light is reduced, and the external ambient light is prevented from exiting and affecting the normal display effect of the display panel 100. As Figure 9As shown, the surface of the first color filter unit 1031 facing the second color filter unit 1041 can be a first curved surface 111, which bulges toward the second color filter unit 1041 along the first curved surface 111. Some small-angle light rays in the external ambient light incident on the display panel 100 are deflected into large-angle light rays and emitted, and are received by the second color filter unit 1041, and are absorbed or reflected again to reduce the intensity and emission probability of the external ambient light, ensuring the display effect of the display panel 100. Compared with a flat surface, the surface area of the first curved surface 111 is larger, and it can receive more external ambient light incident on the first color filter unit 1031 and reflect some of the external ambient light to reduce the luminous intensity of the external ambient light. At the same time, the surface of the first color filter unit 1031 facing the second color filter unit 1041 is the first curved surface 111, which bulges toward the second color filter unit 1041 along the first curved surface. The angle between the tangent line of any point on the first curved surface 111 and the extension direction of the substrate 101 is less than 30°, reasonably controlling the degree of curvature of the curved surface to ensure the forward viewing angle light emission of the light-emitting unit 102, and thus ensuring the normal display of the display panel 100.

[0055] Figure 10 As shown in the structural schematic diagram of another display panel provided by an embodiment of the present invention, Figure 11 As shown in the structural schematic diagram of another display panel provided by an embodiment of the present invention, continue to refer to Figure 2 、 Figure 3 、 Figure 4 、Figure 6, Figure 7 、 Figure 9 、 Figure 10 and Figure 11 As shown, optionally, the surface of the second color filter unit 1041 facing the first color filter unit 1031 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.

[0056] Among them, the surface of the second color filter unit 1041 facing the first color filter unit 1031 can be a flat surface or a second curved surface 112. Continue to refer to Figure 2 、 Figure 3 、 Figure 4 、 Figure 6 、 Figure 7 and Figure 9 , the surface of the second color filter unit 1041 facing the first color filter unit 1031 can be a flat surface for receiving the external ambient light reflected by the first color filter unit 1031. Further, as Figure 10As shown in the figure, in order to increase the amount of external ambient light received, the surface of the second color filter unit 1041 facing the first color filter unit 1031 is a second curved surface 112, and the second curved surface 112 is recessed toward the first color filter unit 1031. Compared with a flat surface, the surface area of the second curved surface 112 is larger, and it can receive more external ambient light reflected from the first color filter unit 1031 to the second color filter unit 1041, thereby increasing the intensity consumption of the external ambient light. As Figure 11 shown, when the surface of the first color filter unit 1031 facing the second color filter unit 1041 is a first curved surface 111 and the surface of the second color filter unit 1041 facing the first color filter unit 1031 is a second curved surface 112, the curvature of the second color filter unit 1041 can be gradually changed in coordination with the convexity of the first color filter unit 1031. To ensure the consistency of the overall thickness of the first color filter unit 1031 and the second color filter unit 1041, and at the same time ensure the uniform emission of light after the light emitted from the display panel 100 passes through the first color filter unit 1031 and the second color filter unit 1041, the display uniformity of the display panel 100 is improved.

[0057] Figure 12 This is a schematic structural diagram of another display panel provided by an embodiment of the present invention. As Figure 12 shown, 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 reflectivity of the first sub-color filter unit 1032 is greater than that of the second sub-color filter unit 1033, and the reflectivity 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, and the surface of the first sub-color filter unit 1032 facing the substrate 101 is a first flat surface 1111. The maximum angle between the tangent line at any point on the first sub-curved surface 1110 and the first flat surface 1111 is a first angle α1; the surface of the second sub-color filter unit 1033 facing the second color filter unit 1041 is a second sub-curved surface 1112, and the surface of the second sub-color filter unit 1033 facing the substrate 101 is a second flat surface 1113. The maximum angle between the tangent line at any point on the second sub-curved surface 1112 and the second flat surface 1113 is a second angle α2; the surface of the third sub-color filter unit 1034 facing the second color filter unit 1041 is a third sub-curved surface 1114, and the surface of the third sub-color filter unit 1034 facing the substrate 101 is a third flat surface 1115. The maximum angle between the tangent line at any point on the third sub-curved surface 1114 and the third flat surface 1115 is a third angle α3. The first angle α1 is less than the second angle α2, and the second angle α2 is less than the third angle α3.

[0058] Among them, the first color filter units 1031 of different colors have different light reflection capabilities. 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. The first sub-color filter unit 1032, the second sub-color filter unit 1033, and the third sub-color filter unit 1034 can be one of a red color filter unit, a green color filter unit, or a blue color filter unit. The specific selection can be made according to actual design requirements, and the embodiments of the present invention do not make specific limitations. The reflectivity of the first sub-color filter unit 1032 is greater than the reflectivity of the second sub-color filter unit 1033, and the reflectivity of the first sub-color filter unit 1032 is greater than the reflectivity 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 light reflection ability for the received external ambient light than the surface of the second sub-color filter unit 1033 facing the second color filter unit 1041 for the received external ambient light, and the surface of the first sub-color filter unit 1032 facing the second color filter unit 1041 has a greater light reflection ability for the received external ambient light than the surface of the third sub-color filter unit 1034 facing the second color filter unit 1041 for the received external ambient light. To ensure the overall reflection effect of the external ambient light inside the display panel 100, the protrusion degrees 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 on the side facing the second color filter unit 1041 can be set differently, so as to control the light reflection capabilities of the first sub-color filter unit 1032, the second sub-color filter unit 1033, and the third sub-color filter unit 1034 for the external ambient light.The surface of the first sub-color filter unit 1032 facing the second color filter unit 1041 is the first sub-curved surface 1110, and the surface of the first sub-color filter unit 1032 facing the substrate 101 is the first plane 1111. The maximum angle between the tangent line at any point on the first sub-curved surface 1110 and the first plane 1111 is the first angle α1; the surface of the second sub-color filter unit 1033 facing the second color filter unit 1041 is the second sub-curved surface 1112, and the surface of the second sub-color filter unit 1033 facing the substrate 101 is the second plane 1113. The maximum angle between the tangent line at any point on the second sub-curved surface 1112 and the second plane 1113 is the second angle α2; the surface of the third sub-color filter unit 1034 facing the second color filter unit 1041 is the third sub-curved surface 1114, and the surface of the third sub-color filter unit 1034 facing the substrate 101 is the third plane 1115. The maximum angle between the tangent line at any point on the third sub-curved surface 1114 and the third plane 1115 is the third angle α3, such that the first angle α1 is less than the second angle α2, and the second angle α2 is less than the third angle α3. The reflection ability of the first sub-curved surface 1110 of the first sub-color filter unit 1032 for the received external ambient light is less than the reflection ability of the second sub-curved surface 1112 of the second sub-color filter unit 1033 for the received external ambient light, and the reflection ability of the first sub-curved surface 1110 of the first sub-color filter unit 1032 for the received external ambient light is less than the reflection ability of the third sub-curved surface 1114 of the third sub-color filter unit 1034 for the received external ambient light. At the same time, the external ambient light reflected by different color filter sub-units is received by the corresponding second color filter unit 1041. Since the first color filter unit 1031 and the second color filter unit 1041 are correspondingly arranged and have the same color, the reflected external ambient light cannot exit, realizing the regulation of the reflection ability of the external ambient light entering the display panel 100, ensuring that the external ambient light enters different first color filter units 1031 with the same reflection effect, and avoiding the exit of the external ambient light, which affects the display effect of the display panel 100.

[0059] Figure 13 Another structural schematic diagram of the display panel provided by the embodiment of the present invention is shown in Figure 13As shown, 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 A color filter unit 1044, a second B color filter unit 1045, and a second C color filter unit 1046. Along the thickness direction of the display panel 100, the hollow portion 1043 in the second A color filter unit 1044 at least partially overlaps with the first light-emitting unit 1021, the hollow portion 1043 in the second B color filter unit 1045 at least partially overlaps with the second light-emitting unit 1022, and the hollow portion 1043 in the second C color filter unit 1046 at least partially overlaps with the third light-emitting unit 1023. 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, and the light-emitting area of the second light-emitting unit 1022 is smaller than the light-emitting area of the third light-emitting unit 1023. The coverage area of the second A color filter unit 1044 is larger than the coverage area of the second B color filter unit 1045, and the coverage area of the second B color filter unit 1045 is larger than the coverage area of the second C color filter unit 1046.

[0060] Among them, 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 light-emitting units 102 that emit light of different colors or light-emitting units 102 that emit light of the same color. The second color filter unit 1041 includes a second A color filter unit 1044, a second B color filter unit 1045, and a second C color filter unit 1046. The second A color filter unit 1044, the second B color filter unit 1045, and the second C color filter unit 1046 can be color filter units of different colors or color filter units of the same color. Exemplarily, taking the first light-emitting unit 1021, the second light-emitting unit 1022, and the third light-emitting unit 1023 as light-emitting units of different colors respectively, and the corresponding second A color filter unit 1044, second B color filter unit 1045, and second C color filter unit 1046 as color filter units of different colors as an example for description. To ensure the overall display effect of the display panel 100, the light emitted by the light-emitting unit 102 passes through the first color filter unit 1031 and then exits through the hollow portion 1043 of the second color filter unit 1041. However, due to the different light-emitting areas of the light-emitting units 102 of different colors, 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. Furthermore, 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 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, 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 the covering areas of the first color filter unit 1031 and the second color filter unit 1041 corresponding to the third light-emitting unit 1023. To further ensure the reflection effect of the display panel 100 on external ambient light, along the thickness direction of the display panel 100, the hollow portion 1043 in the second A color filter unit 1044 overlaps at least partially with the first light-emitting unit 1021, the hollow portion 1043 in the second B color filter unit 1045 overlaps at least partially with the second light-emitting unit 1022, and the hollow portion 1043 in the second C color filter unit 1046 overlaps at least partially with the third light-emitting unit 1023; the covering area of the second A color filter unit 1044 is larger than the covering area of the second B color filter unit 1045, and the covering area of the second B color filter unit 1045 is larger than the covering area of the second C color filter unit 1046, ensuring the ability to receive the external ambient light reflected by the first color filter unit 1031, reducing the probability of external ambient light exiting, and ensuring the display effect of the display panel 100.

[0061] Figure 14 is a schematic structural diagram of another display panel provided by an embodiment of the present invention, asFigure 14 As shown, 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 sub-color filter unit 1035, a fifth sub-color filter unit 1036, and a sixth sub-color filter unit 1037; along 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 the light-emitting area of the second light-emitting unit 1022, and 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 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 angle between the tangent line of any point on the fourth sub-curved surface 1116 and the fourth plane 1117 is a fourth angle α4; 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 101 is a fifth plane 1119, and the maximum angle between the tangent line of any point on the fifth sub-curved surface 1118 and the fifth plane 1119 is a fifth angle α5; the surface of the sixth sub-color filter unit 1037 facing the second color filter unit 1041 is a sixth sub-curved surface 1120, the surface of the sixth sub-color filter unit 1037 facing the substrate 101 is a sixth plane 1121, and the maximum angle between the tangent line of any point on the sixth sub-curved surface 1120 and the sixth plane 1121 is a sixth angle α6; the fourth angle α4 is greater than the fifth angle α5, and the fifth angle α5 is greater than the sixth angle α6.

[0062] Among them, since 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 coverage area of the corresponding fourth sub-color filter unit 1035 is smaller than that of the fifth sub-color filter unit 1036, and the coverage area of the fifth sub-color filter unit 1036 is smaller than that of the sixth sub-color filter unit 1037. To ensure the reflection ability of the fourth sub-color filter unit 1035, the fifth sub-color filter unit 1036, and the sixth sub-color filter unit 1037 for the external environmental light received, the protrusion degrees of the surfaces of the fourth sub-color filter unit 1035, the fifth sub-color filter unit 1036, and the sixth sub-color filter unit 1037 facing the second color filter unit 1041 are different. Specifically, the surface of the fourth sub-color filter unit 1035 facing the second color filter unit 1041 is the fourth sub-curved surface 1116, the surface of the fourth sub-color filter unit 1035 facing the substrate 101 is the fourth plane 1117, and the maximum angle between the tangent line of any point on the fourth sub-curved surface 1116 and the fourth plane 1117 is the fourth angle α4; the surface of the fifth sub-color filter unit 1036 facing the second color filter unit 1041 is the fifth sub-curved surface 1118, the surface of the fifth sub-color filter unit 1036 facing the substrate 101 is the fifth plane 1119, and the maximum angle between the tangent line of any point on the fifth sub-curved surface 1118 and the fifth plane 1119 is the fifth angle α5; the surface of the sixth sub-color filter unit 1037 facing the second color filter unit 1041 is the sixth sub-curved surface 1120, the surface of the sixth sub-color filter unit 1037 facing the substrate 101 is the sixth plane 1121, and the maximum angle between the tangent line of any point on the sixth sub-curved surface 1120 and the sixth plane 1121 is the sixth angle α6; the fourth angle α4 is greater than the fifth angle α5, and the fifth angle α5 is greater than the sixth angle α6, so that the reflection ability of the fourth sub-curved surface 1116 of the fourth sub-color filter unit 1035 for the external environmental light is greater than that of the fifth sub-curved surface 1118 of the fifth sub-color filter unit 1036 for the external environmental light, and the reflection ability of the fifth sub-curved surface 1118 of the fifth sub-color filter unit 1036 for the external environmental light is greater than that of the sixth sub-curved surface 1120 of the sixth sub-color filter unit 1037 for the external environmental light. Furthermore, the reflection ability of the external environmental light of the first color filter unit 1031 of different colors is ensured to be the same, and at the same time, for the color of the corresponding second color filter unit 1041, along the thickness direction of the display panel 100, the colors of the corresponding first color filter unit 1031 and the second color filter unit 1041 are the same, further reducing the probability of the external environmental light exiting and ensuring the display effect of the display panel 100.

[0063] Based on the same inventive concept, Figure 15 is a schematic structural diagram of a display device provided by an embodiment of the present invention, as Figure 15As shown, the display device 200 includes the display panel 100 described in the above embodiment.

[0064] It should be noted that since the display device provided in this embodiment has the same or corresponding beneficial effects as the display panel 100 of the above embodiment, no further elaboration will be made here. The display device 200 provided by the embodiment of the present invention can be Figure 15 the mobile phone shown in the figure, or any electronic product with a display function, including but not limited to the following categories: television sets, laptop computers, desktop monitors, tablet computers, digital cameras, smart bracelets, smart glasses, in-vehicle displays, medical devices, industrial control devices, touch interaction terminals, etc. The embodiment of the present invention does not make special limitations on this.

[0065] Note that the above is only the preferred embodiment of the present invention and the applied technical principle. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described here, and various obvious changes, re-adjustments, mutual combinations, and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments only. Without departing from the concept of the present invention, more other equivalent embodiments can be included, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A display panel, characterized in that, Comprising: A substrate; A plurality of light-emitting units located on one side of the substrate; A first color filter layer including a plurality of first color filter units, located on the side of the light-emitting units away from the substrate, and in the thickness direction of the display panel, the first color filter units cover the light-emitting units; A second color filter layer including a plurality of second color filter units, located on the side of the first color filter units away from the substrate; in the thickness direction of the display panel, the second color filter units at least partially overlap with the first color filter units; The second color filter unit includes a color filtering portion and a hollow portion, and in the thickness direction of the display panel, the color filtering portion at least partially overlaps with the gap between two adjacent light-emitting units, and the hollow portion at least partially overlaps with the light-emitting units; A first dielectric layer located between the first color filter layer and the second color filter layer.

2. The display panel according to claim 1, characterized in that, In the thickness direction of the display panel, the colors of the at least partially overlapping first color filter units and second color filter units are the same.

3. The display panel according to claim 1, wherein The first color filter layer further includes a light-shielding unit; The second color filter unit at least partially overlaps with the light-shielding unit.

4. The display panel according to claim 3, characterized in that, In the thickness direction of the display panel, the second color filter unit covers the edge of the light-shielding unit; The minimum distance between the edge of the positive projection of the second color filter unit on the plane where the substrate is located and the edge of the positive projection of the light-shielding unit on the plane where the substrate is located is a, where 2μm ≤ a ≤ 3μm.

5. The display panel according to claim 3, characterized in that In the thickness direction of the display panel, the light-shielding unit covers the edge of the second color filter unit.

6. The display panel according to claim 1, wherein There is a gap between two adjacent second color filter units.

7. The display panel according to claim 1, characterized in that, Two adjacent second color filter units are in contact.

8. The display panel according to claim 1, characterized in that, In the thickness direction of the display panel, the thickness of the first color filter unit is h1, and the thickness of the second color filter unit is h2, where 2μm ≤ h1 + h2 ≤ 3μm.

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

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

11. The display panel according to claim 9, 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, and the reflectivity of the first sub-color filter unit is greater than the reflectivity of the second sub-color filter unit, and the reflectivity of the first sub-color filter unit is greater than the reflectivity of the third sub-color filter unit; The surface of the first sub-color filter unit facing the second color filter unit is a first sub-curved surface, and the surface of the first sub-color filter unit facing the substrate is a first flat surface. The maximum angle between the tangent line at any point on the first sub-curved surface and the first flat surface is the first angle; the surface of the second sub-color filter unit facing the second color filter unit is a second sub-curved surface, and the surface of the second sub-color filter unit facing the substrate is a second flat surface. The maximum angle between the tangent line at any point on the second sub-curved surface and the second flat surface is the second angle; the surface of the third sub-color filter unit facing the second color filter unit is a third sub-curved surface, and the surface of the third sub-color filter unit facing the substrate is a third flat surface. The maximum angle between the tangent line at any point on the third sub-curved surface and the third flat surface is the third angle. The first angle is less than the second angle, and the second angle is less than the third angle.

12. The display panel according to claim 1, 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 A color filter unit, a second B color filter unit, and a second C color filter unit. Along the thickness direction of the display panel, the hollow portion in the second A color filter unit at least partially overlaps with the first light-emitting unit, the hollow portion in the second B color filter unit at least partially overlaps with the second light-emitting unit, and the hollow portion in the second C color filter unit at least partially overlaps with the third light-emitting unit; The light-emitting area of the first light-emitting unit is smaller than the light-emitting area of the second light-emitting unit, and the light-emitting area of the second light-emitting unit is smaller than the light-emitting area of the third light-emitting unit; the coverage area of the second A color filter unit is larger than the coverage area of the second B color filter unit, and the coverage area of the second B color filter unit is larger than the coverage area of the second C color filter unit.

13. The display panel according to claim 9, characterized in that, The light-emitting unit includes a first light-emitting unit, a second light-emitting unit, and a third light-emitting unit. 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; along the thickness direction of the display panel, the fourth sub-color filter unit covers the first light-emitting unit, the fifth sub-color filter unit covers the second light-emitting unit, and the sixth sub-color filter unit covers the third light-emitting 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; a surface of the fourth sub-color filter unit facing the second color filter unit is a fourth sub-curved surface, a surface of the fourth sub-color filter unit facing the substrate is a fourth plane, and a maximum angle between a tangent line at any point on the fourth sub-curved surface and the fourth plane is a fourth angle; a surface of the fifth sub-color filter unit facing the second color filter unit is a fifth sub-curved surface, a surface of the fifth sub-color filter unit facing the substrate is a fifth plane, and a maximum angle between a tangent line at any point on the fifth sub-curved surface and the fifth plane is a fifth angle; a surface of the sixth sub-color filter unit facing the second color filter unit is a sixth sub-curved surface, a surface of the sixth sub-color filter unit facing the substrate is a sixth plane, and a maximum angle between a tangent line at any point on the sixth sub-curved surface and the sixth plane is a sixth angle; the fourth angle is greater than the fifth angle, and the fifth angle is greater than the sixth angle.

14. A display device, characterized in that, A display panel comprising the display panel according to any one of claims 1-13.

Images