Display panel, display device and mask

Abstract

The invention discloses a display panel, a display device and a mask plate. The display panel includes: a substrate; the light-emitting units with at least two light-emitting colors are arranged on the same side of the substrate; the first lens layer is arranged on the side, away from the substrate, of the light-emitting unit, and the first lens layer at least partially surrounds the light-emitting unit; and the heights of the first lens layers correspondingly surrounded by the light-emitting units with different light-emitting colors are different. The heights of the first lens layers correspondingly surrounded by the light-emitting units with different light-emitting colors are set to be different, so that the light convergence degree of the light-emitting units with different light-emitting colors can be adjusted, the consistency of the light extraction rates of the light-emitting units with different light-emitting colors is improved, the visual angle color cast phenomenon of the display panel can be improved, and the display effect is improved. And the display effect of the display panel is improved.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of display technology, and in particular to a display panel, a display device and a mask. Background Art

[0002] The display panel has a problem of viewing angle color cast during the display process, resulting in a relatively poor display effect of the display panel. Summary of the invention

[0003] The present invention provides a display panel, a display device and a mask plate, so as to improve the viewing angle color cast phenomenon of the display panel and enhance the display effect of the display panel.

[0004] In a first aspect, an embodiment of the present invention provides a display panel, including:

[0005] substrate;

[0006] Light-emitting units of at least two luminous colors are arranged on the same side of the substrate;

[0007] The first lens layer is arranged on a side of the light emitting unit away from the substrate, and the first lens layer at least partially surrounds the light emitting unit; the light emitting units of different light emitting colors are surrounded by the first lens layer at different heights.

[0008] Optionally, the display panel includes:

[0009] A pixel definition layer is arranged on one side of the substrate, an opening area and a non-opening area are arranged on the pixel definition layer, and the first lens layer is arranged in the non-opening area;

[0010] The light emitting unit comprises:

[0011] A light-emitting layer is disposed on a side of the pixel definition layer away from the substrate, and at least a portion of the light-emitting layer is disposed in the opening area;

[0012] Preferably, the light-emitting units of different light-emitting colors correspond to different opening area areas;

[0013] Preferably, when the area of ​​the opening region corresponding to a light-emitting unit of one light-emitting color is larger than the area of ​​the opening region corresponding to a light-emitting unit of another light-emitting color, the height of the first lens layer corresponding to the light-emitting unit of one light-emitting color is larger than the height of the first lens layer corresponding to the light-emitting unit of another light-emitting color;

[0014] Preferably, the display panel comprises a first color light emitting unit, a second color light emitting unit and a third color light emitting unit, the opening area corresponding to the first color light emitting unit is larger than the opening area corresponding to the third color light emitting unit, and the opening area corresponding to the third color light emitting unit is larger than the opening area corresponding to the second color light emitting unit; the height of the first lens layer corresponding to the first color light emitting unit is larger than the height of the first lens layer corresponding to the third color light emitting unit, and the height of the first lens layer corresponding to the third color light emitting unit is larger than the height of the first lens layer corresponding to the second color light emitting unit;

[0015] Preferably, the light emitting unit further comprises:

[0016] A first electrode layer is disposed on a side of the light-emitting layer close to the substrate, and the first electrode layer is at least partially exposed in the opening area;

[0017] The second electrode layer is arranged on a side of the light-emitting layer away from the substrate, and the second electrode layer covers the light-emitting layer.

[0018] Optionally, the display panel further includes:

[0019] The second lens layer is arranged on a side of the first lens layer away from the substrate, the second lens layer covers the first lens layer and the light emitting unit, and the refractive index of the second lens layer is greater than the refractive index of the first lens layer.

[0020] Optionally, the first lens layer includes a first part and a second part; the first part at least partially surrounds a light-emitting unit of one light-emitting color, and the second part at least partially surrounds a light-emitting unit of another light-emitting color, and a height of the first part is different from a height of the second part; the first part and the second part are an integrated structure.

[0021] Optionally, the display panel further includes:

[0022] An encapsulation layer is disposed on a side of the light emitting unit away from the substrate and located on a side of the first lens layer close to the substrate;

[0023] Preferably, the display panel further includes:

[0024] The touch layer is disposed on a side of the packaging layer away from the substrate and is located on a side of the first lens layer close to the substrate.

[0025] In a second aspect, an embodiment of the present invention further provides a mask plate for manufacturing the display panel described in the first aspect; the mask plate comprises:

[0026] substrate;

[0027] A mask layer is disposed on the substrate, and a light-transmitting area and a light-shielding area are disposed on the mask layer, wherein the light-transmitting area corresponds to the light-emitting unit, and the light-shielding area corresponds to the first lens layer.

[0028] The light-transmitting area at least includes a first light-transmitting area and a second light-transmitting area, and the area of ​​the first light-transmitting area is larger than the area of ​​the second light-transmitting area; at least one of the light-shielding areas includes a first light-shielding area and a second light-shielding area, and the first light-shielding area surrounds the first light-transmitting area, and the second light-shielding area surrounds the second light-transmitting area; the light transmittance of the first light-shielding area is smaller than the light transmittance of the second light-shielding area.

[0029] Optionally, the light-transmitting area further includes a third light-transmitting area; the area of ​​the third light-transmitting area is larger than the area of ​​the second light-transmitting area, and smaller than the area of ​​the first light-transmitting area; at least one of the light-shielding areas further includes a third light-shielding area; the third light-shielding area surrounds the third light-transmitting area; the light transmittance of the third light-shielding area is smaller than the light transmittance of the second light-shielding area, and greater than the light transmittance of the first light-shielding area;

[0030] Preferably, the light transmittance of the light-shielding areas adjacent to the light-transmitting areas of the same type is the same.

[0031] Optionally, the mask layer includes at least a first semi-permeable membrane layer and a second semi-permeable membrane layer; the first semi-permeable membrane layer is arranged in the first light-shielding area and the second light-shielding area; the second semi-permeable membrane layer is arranged in the first light-shielding area, and in the first light-shielding area, the first semi-permeable membrane layer and the second semi-permeable membrane layer are stacked;

[0032] Alternatively, the first semi-permeable membrane layer is disposed in the first light-shielding area, the second semi-permeable membrane layer is disposed in the second light-shielding area, and the light transmittance of the first semi-permeable membrane layer is less than the light transmittance of the second semi-permeable membrane layer;

[0033] Preferably, the mask layer further comprises a third semi-permeable membrane layer; the third semi-permeable membrane layer is arranged in the first light-shielding area and the third light-shielding area; the second semi-permeable membrane layer is also arranged in the third light-shielding area, in the first light-shielding area, the first semi-permeable membrane layer, the second semi-permeable membrane layer and the third semi-permeable membrane layer are stacked, and the third semi-permeable membrane layer is arranged between the first semi-permeable membrane layer and the second semi-permeable membrane layer; in the third light-shielding area, the second semi-permeable membrane layer and the third semi-permeable membrane layer are stacked;

[0034] Alternatively, the first semi-permeable membrane layer is arranged in the first shading area, the second semi-permeable membrane layer is arranged in the second shading area, and the third semi-permeable membrane layer is arranged in the third shading area, the light transmittance of the first semi-permeable membrane layer is less than the light transmittance of the second semi-permeable membrane layer, the light transmittance of the third semi-permeable membrane layer is less than the light transmittance of the second semi-permeable membrane layer, and is greater than the light transmittance of the first semi-permeable membrane layer.

[0035] Optionally, the thickness of the mask layer in the first light-shielding area is greater than the thickness of the mask layer in the second light-shielding area; and / or,

[0036] The mask layer has a pattern in the light-shielding area, and the number of slits in the pattern in the first light-shielding area is less than the number of slits in the pattern in the second light-shielding area;

[0037] Preferably, the thickness of the mask layer in the third shading area is greater than the thickness of the mask layer in the second shading area, and less than the thickness of the mask layer in the first shading area; and / or, the number of graphic slits in the third shading area is less than the number of graphic slits in the second shading area, and greater than the number of graphic slits in the first shading area.

[0038] In a third aspect, an embodiment of the present invention further provides a display device, comprising the display panel described in the first aspect.

[0039] The technical solution of the embodiment of the present invention can adjust the light convergence degree of the light emitting units of different luminous colors and improve the consistency of the light extraction rate of the light emitting units of different luminous colors by setting the heights of the first lens layers corresponding to the light emitting units of different luminous colors to be different, thereby improving the viewing angle color cast phenomenon of the display panel and improving the display effect of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 A schematic diagram of the structure of a display panel provided for related technology;

[0041] Figure 2 A schematic diagram of the structure of a display panel provided by an embodiment of the present invention;

[0042] Figure 3 A schematic diagram of the structure of a display panel provided by an embodiment of the present invention;

[0043] Figure 4 A schematic structural diagram of a mask provided by an embodiment of the present invention;

[0044] Figure 5 A schematic structural diagram of another mask provided by an embodiment of the present invention;

[0045] Figure 6A schematic structural diagram of another mask provided by an embodiment of the present invention;

[0046] Figure 7 A schematic structural diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0047] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0048] Figure 1 A schematic diagram of the structure of a display panel provided for related technology. Figure 1 As shown, the display panel includes a display unit 11 and a first lens layer 12. The first lens layer 12 is disposed on one side of the light-emitting surface 101 of the display unit 11. When the light of the display unit 11 is emitted from the light-emitting surface 101, it can be totally reflected by the first lens layers 12 on both sides to converge the light, thereby improving the light extraction rate of the display panel. The display panel includes display units 11 of multiple luminous colors. The display units 11 of different luminous colors have different pixel openings, so that the light has different incident angles when irradiating to the first lens layer 12. When reflected by the first lens layer 12, it is easy for light of different colors to have different light extraction rates, thereby causing the display panel to have a viewing angle color cast problem.

[0049] In view of the above technical problem, an embodiment of the present invention provides a display panel. Figure 2 FIG. 1 is a schematic diagram of a display panel provided by an embodiment of the present invention. Figure 2 As shown, the display panel includes:

[0050] Substrate 110;

[0051] Light-emitting units 120 of at least two light-emitting colors are disposed on the same side of the substrate 110;

[0052] The first lens layer 130 is disposed on a side of the light emitting unit 120 away from the substrate 110 . The first lens layer 130 at least partially surrounds the light emitting unit 120 . The light emitting units 120 of different light emitting colors have different heights of the first lens layer 130 .

[0053] Specifically, the substrate 110 is used to carry the light emitting unit 120. Exemplarily, the substrate 110 may be a flexible substrate or a rigid substrate. Figure 2exemplarily shows that the display panel includes three light-emitting units 120 of light-emitting colors, namely, a red light-emitting unit R, a green light-emitting unit G, and a blue light-emitting unit B. The light emitted by the light-emitting units 120 of different colors has different angles. The first lens layer 130 has the function of light reflection. Exemplarily, the material of the first lens layer 130 can be organic glue. When the first lens layer 130 is arranged around the light-emitting unit 120, the light emitted by the light-emitting unit 120 can be reflected and converged by the first lens layer 130, thereby improving the light extraction rate of the light-emitting unit 120. The heights of the first lens layer 130 corresponding to the light-emitting units 120 of different light-emitting colors are different. When the light of the light-emitting units 120 of different light-emitting colors is irradiated to the first lens layer 130 at different angles, the light convergence degree of the light-emitting units 120 of different light-emitting colors can be adjusted by the height of the first lens layer 130, thereby improving the consistency of the light extraction rate of the light-emitting units 120 of different light-emitting colors, thereby improving the viewing angle color cast phenomenon of the display panel and improving the display effect of the display panel.

[0054] The technical solution of this embodiment can adjust the degree of light convergence of light emitting units of different luminous colors and improve the consistency of light extraction rates of light emitting units of different luminous colors by setting different heights of the first lens layer corresponding to light emitting units of different luminous colors, thereby improving the viewing angle color cast phenomenon of the display panel and improving the display effect of the display panel.

[0055] Figure 3 FIG. 1 is a schematic diagram of a display panel provided by an embodiment of the present invention. Figure 2 and Figure 3 As shown, the display panel includes:

[0056] The pixel definition layer 121 is disposed on one side of the substrate 110 , and an opening area A and a non-opening area B are disposed on the pixel definition layer 121 , and the first lens layer 130 is disposed in the non-opening area B;

[0057] The light-emitting unit includes:

[0058] The light emitting layer 122 is disposed on a side of the pixel definition layer 121 away from the substrate 110 . At least a portion of the light emitting layer 122 is disposed in the opening region A.

[0059] Specifically, the pixel definition layer 121 has an opening area A for defining the position of the light-emitting layer 122, thereby defining the light-emitting position of the light-emitting unit 120. At least a portion of the light-emitting layer 122 is disposed in the opening area A, so that the light-emitting layer 122 emits light in the opening area A, and the light-emitting area of ​​the light-emitting layer 122 is defined by the area of ​​the opening area A.

[0060] In some embodiments, the opening regions A corresponding to the light emitting units 120 of different light emitting colors have different areas.

[0061] Specifically, the area of ​​the opening region A is positively correlated with the area of ​​the light emitting surface of the light emitting unit 120. The materials of the light emitting layer 122 of the light emitting units 120 of different light emitting colors are different, so that the light emitting efficiencies of the light emitting units 122 of different light emitting colors are different. By setting the areas of the opening regions A corresponding to the light emitting units 120 of different light emitting colors to be different, the consistency of the light extraction rates of the light emitting units 120 of different light emitting colors can be improved, thereby improving the color cast of the display panel. Exemplarily, the light emitting units 120 of different colors may include a red light emitting unit R, a green light emitting unit G, and a blue light emitting unit B. The luminous efficiency of the red light-emitting unit R is lower than that of the blue light-emitting unit B, and the luminous efficiency of the blue light-emitting unit B is lower than that of the green light-emitting unit G. By setting the area of ​​the opening area A corresponding to the red light-emitting unit R to be larger than that of the blue light-emitting unit B, and the area of ​​the opening area A corresponding to the blue light-emitting unit B to be larger than that of the green light-emitting unit G, the light-emitting surface area of ​​the red light-emitting unit R is larger than that of the blue light-emitting unit B, and the light-emitting surface area of ​​the blue light-emitting unit B is larger than that of the green light-emitting unit G, so that the consistency of the light extraction rate of the light-emitting units 120 of different luminous colors can be improved through the difference in luminous area, and the color shift phenomenon of the display panel is improved. The first lens layer 130 is arranged around the light-emitting unit 120, which means that the first lens layer 130 is arranged around the opening area A corresponding to the light-emitting unit 120, that is, the orthographic projection of the first lens layer 130 on the substrate 110 surrounds the orthographic projection of the opening area A on the substrate 110.

[0062] In some embodiments, when the opening area corresponding to one light emitting unit is larger than the opening area corresponding to another light emitting unit, the height of the first lens layer corresponding to one light emitting unit is larger than the height of the first lens layer corresponding to another light emitting unit.

[0063] Specifically, the area of ​​the opening area corresponding to the light-emitting unit is the area of ​​the opening area where the light-emitting layer of the light-emitting unit is located. The display panel includes light-emitting units of at least two light-emitting colors. When the area of ​​the opening area corresponding to the light-emitting unit of one light-emitting color is larger than the area of ​​the opening area corresponding to the light-emitting unit of another light-emitting color, the light convergence of the light-emitting unit of one light-emitting color is smaller than the light convergence of the light-emitting unit of another light-emitting color. At this time, the height of a part of the first lens layer can be set to be greater than the height of another part of the first lens layer, wherein a part of the first lens layer refers to the first lens layer surrounding the light-emitting unit of one light-emitting color, and another part of the first lens layer refers to the first lens layer surrounding the light-emitting unit of another light-emitting color. In this way, the light convergence of a part of the first lens layer to a light-emitting unit of one light-emitting color can be greater than the light convergence of another part of the first lens layer to a light-emitting unit of another light-emitting color, so that the difference in light convergence of light-emitting units of different light-emitting colors can be compensated by the height difference of the first lens layer, thereby improving the consistency of light extraction rate of light-emitting units of different light-emitting colors, improving the color cast problem of the display panel, and improving the display effect of the display panel.

[0064] Continue to refer Figure 2 and Figure 3 The display panel includes a first color light-emitting unit R, a second color light-emitting unit G and a third color light-emitting unit B. The opening area corresponding to the first color light-emitting unit R is larger than the opening area corresponding to the third color light-emitting unit B, and the opening area corresponding to the third color light-emitting unit B is larger than the opening area corresponding to the second color light-emitting unit G; the height of the first lens layer 130 surrounded by the first color light-emitting unit R is larger than the height of the first lens layer 130 surrounded by the third color light-emitting unit B, and the height of the first lens layer 130 surrounded by the third color light-emitting unit B is larger than the height of the first lens layer 130 surrounded by the second color light-emitting unit G.

[0065] Specifically, the first color light-emitting unit R may be a red light-emitting unit, and the corresponding first lens layer 130 surrounding it is the first color lens layer 131; the second color light-emitting unit G may be a green light-emitting unit, and the corresponding first lens layer 130 surrounding it is the second color lens layer 132; the third color light-emitting unit B may be a blue light-emitting unit, and the corresponding first lens layer 130 surrounding it is the third color lens layer 133. The opening area corresponding to the first color light-emitting unit R is larger than the opening area corresponding to the third color light-emitting unit B, and the opening area corresponding to the third color light-emitting unit B is larger than the opening area corresponding to the second color light-emitting unit G, which can improve the color cast problem caused by the material difference of the light-emitting layer. At the same time, the height H1 of the first color lens layer 131 is set to be larger than the height H3 of the third color lens layer 133, so that the light convergence of the first color lens layer 131 to the first color light-emitting unit R is greater than the light convergence of the third color lens layer 133 to the third color light-emitting unit B, thereby improving the consistency of the light extraction rate of the first color light-emitting unit R and the third color light-emitting unit B. At the same time, the height H3 of the third color lens layer 133 is set to be greater than the height H2 of the second color lens layer 132, so that the light convergence of the third color lens layer 133 to the third color light emitting unit B is greater than the light convergence of the second color lens layer 132 to the second color light emitting unit G, thereby improving the consistency of the light extraction rate of the second color light emitting unit G and the third color light emitting unit B. In this way, the color cast problem of the display panel can be improved, and the display effect of the display panel can be improved.

[0066] Continue to refer Figure 3 , the light emitting unit 120 further includes:

[0067] The first electrode layer 123 is disposed on a side of the light emitting layer 122 close to the substrate 110 , and the first electrode layer 123 is at least partially exposed in the opening area A;

[0068] The second electrode layer is disposed on a side of the light emitting layer 122 away from the substrate 110 , and the second electrode layer covers the light emitting layer 122 .

[0069] Specifically, the first electrode layer 123 may be an anode layer of the light-emitting unit 120, and is disposed on a side of the light-emitting layer 122 close to the substrate 110, and is at least partially exposed in the opening area A, so that the first electrode layer 123 is in contact with the light-emitting layer 122, and is used to provide an anode voltage for the light-emitting layer 122. The first electrode layers 123 of different light-emitting units 120 are insulated from each other. The second electrode layer ( Figure 3 (not shown) may be the cathode layer of the light-emitting unit 120, and the second electrode layers of different light-emitting units 120 may be connected to each other to achieve a common cathode connection of multiple light-emitting units 120.

[0070] In some embodiments, the light-emitting unit may further include a light-emitting functional layer 124, which is disposed between the first electrode layer 123 and the second electrode layer to improve the light-emitting efficiency of the light-emitting unit 120. Exemplarily, between the first electrode layer 123 and the light-emitting layer 122, the light-emitting functional layer 124 may include a stacked hole injection layer, a hole transport layer, and an electron blocking layer, and between the light-emitting layer 122 and the second electrode layer, the light-emitting functional layer 124 may include a stacked hole blocking layer, an electron transport layer, and an electron injection layer. This is not limited here.

[0071] Continue to refer Figure 3 In some embodiments, the display panel further comprises:

[0072] The second lens layer 160 is disposed on a side of the first lens layer 130 away from the substrate 110 . The second lens layer 160 covers the first lens layer 130 and the light emitting unit 120 . The refractive index of the second lens layer 160 is greater than that of the first lens layer 130 .

[0073] Specifically, the material of the second lens layer 160 may be optical glue. The refractive index of the second lens layer 160 is greater than that of the first lens layer 130. When the light emitted by the light emitting unit 120 passes through the second lens layer 160 and is emitted to the first lens layer 130, the light is emitted from the medium with a high refractive index to the medium with a low refractive index, so that the light is reflected at the junction of the mediums, thereby causing the light to be reflected at the first lens layer 130, thereby improving the light extraction rate of the light.

[0074] Continue to refer Figure 3 The first lens layer 130 includes a first part 130A and a second part 130B; the first part 130A at least partially surrounds the light-emitting unit 120 of one light-emitting color, and the second part 130B at least partially surrounds the light-emitting unit 130 of another light-emitting color. The height of the first part 130A is different from the height of the second part 130B, and the first part 130A and the second part 130B are an integrated structure.

[0075] Specifically, when the first lens layer 130 is disposed between adjacent light-emitting units 120, if the adjacent light-emitting units 120 are light-emitting units 120 of different light-emitting colors, the first lens layer 130 can be configured to include a first portion 130A and a second portion 130B, wherein the first portion 130A at least partially surrounds the light-emitting unit 120 of one light-emitting color, and the second portion 130B at least partially surrounds the light-emitting unit 130 of another light-emitting color, so that the adjacent light-emitting units 120 can share a first lens layer 130, that is, the first portion 130A and the second portion 130B are an integrated structure, which simplifies the manufacturing process of the display panel. At the same time, the height of the first portion 130A is different from the height of the second portion 130B, and the height difference between the first portion 130A and the second portion 130B can be used to adjust the degree of light convergence of the light-emitting units 120 of different light-emitting colors, and the consistency of the light extraction rate of the light-emitting units 120 of different light-emitting colors can also be improved, thereby improving the viewing angle color cast phenomenon of the display panel and improving the display effect of the display panel. For example, Figure 2 and Figure 3 As shown, when the first lens layer 130 is disposed between the red light emitting unit and the green light emitting unit, the first portion 130A of the first lens layer 130 may be a first color lens layer, and the second portion 130B may be a second color lens layer. When the first lens layer 130 is disposed between the blue light emitting unit and the green light emitting unit, the first portion 130A of the first lens layer 130 may be a second color lens layer, and the second portion 130B may be a third color lens layer. When the first lens layer 130 is disposed between the red light emitting unit and the blue light emitting unit, the first portion 130A of the first lens layer 130 may be a first color lens layer, and the second portion 130B may be a third color lens layer.

[0076] Continue to refer Figure 3 , the display panel further comprises:

[0077] The encapsulation layer 140 is disposed on a side of the light emitting unit 120 away from the substrate 110 , and is located on a side of the first lens layer 130 close to the substrate 110 .

[0078] Specifically, the encapsulation layer 140 is used to encapsulate the light-emitting unit 120 to improve the life of the light-emitting unit 120. Exemplarily, the encapsulation layer 140 may include a first encapsulation inorganic layer 141, an encapsulation organic layer 142, and a second encapsulation inorganic layer 143 that are stacked. The first lens layer 130 may be disposed on a side of the encapsulation layer 140 away from the substrate 110, which can prevent the first lens layer 130 from affecting the arrangement of other film layers and simplify the manufacturing process of the display panel.

[0079] In some embodiments, the display panel further comprises:

[0080] The touch layer 150 is disposed on a side of the packaging layer 140 away from the substrate 110 , and is located on a side of the first lens layer 130 close to the substrate 110 .

[0081] Specifically, the touch layer 150 may include a touch electrode layer and a dielectric layer, and is used to realize the touch function of the display panel. The touch layer 150 is disposed on the encapsulation layer 140, so that the encapsulation layer 140 can be reused as a substrate of the touch layer 150. When the display panel includes the touch layer 150, the first lens layer 130 can be disposed on the touch layer 150 to avoid the first lens layer 130 affecting the arrangement of other film layers, thereby simplifying the manufacturing process of the display panel.

[0082] An embodiment of the present invention further provides a mask plate for manufacturing the display panel provided by any embodiment of the present invention. Figure 4 A schematic diagram of the structure of a mask provided by an embodiment of the present invention. Figure 4 As shown, the mask includes:

[0083] substrate 210;

[0084] The mask layer 220 is disposed on the substrate 210. A light-transmitting area C and a light-shielding area D are disposed on the mask layer 220. The light-transmitting area C corresponds to the light-emitting unit, and the light-shielding area D corresponds to the first lens layer. The light-transmitting area C at least includes a first light-transmitting area C1 and a second light-transmitting area C2. The area of ​​the first light-transmitting area C1 is larger than that of the second light-transmitting area C2. At least one light-shielding area D includes a first light-shielding area D1 and a second light-shielding area D2. The first light-shielding area D1 surrounds the first light-transmitting area C1, and the second light-shielding area D2 surrounds the second light-transmitting area C2. The light transmittance of the first light-shielding area D1 is smaller than the light transmittance of the second light-shielding area D2.

[0085] Specifically, the substrate 210 is used to carry the mask layer 220. The material of the mask layer 220 has a certain light transmittance, for example, it is a semi-transparent film. The body of the mask layer 220 forms a shading area D, and an opening is set on the body of the mask layer 220 to form a light-transmitting area C, that is, the light-transmitting area C is formed by the body of the mask layer 220. When the mask is used to form the first lens layer in the display panel, a first lens film layer is formed on the side of the light-emitting unit away from the substrate, and then the mask provided by the embodiment of the present invention is used for etching, so that the light-transmitting area C corresponds to the light-emitting unit, that is, the orthographic projection of the light-transmitting area C on the substrate coincides with the orthographic projection of the light-emitting unit on the substrate. At the same time, the shading area D corresponds to the first lens layer, that is, the orthographic projection of the shading area D on the substrate coincides with the orthographic projection of the first lens layer on the substrate. Therefore, the first lens film layer can be etched by a photolithography process, so that the first lens film layer at the light-transmitting area C where the light-emitting unit is relatively set is completely etched to form the light-transmitting area C. At the same time, the first lens film layer at the shading area D where the first lens layer is relatively arranged is partially etched to form the first lens layer. The light transmittance of at least part of the shading area D is different, so that the height of the first lens layer formed at at least part of the shading area D is different. When the light of the light-emitting units of different luminous colors irradiates the first lens layer at different angles, the degree of convergence of the light of the light-emitting units of different luminous colors can be adjusted by the height of the first lens layer, so that the consistency of the light extraction rate of the light-emitting units of different luminous colors can be improved, and then the viewing angle color cast phenomenon of the display panel can be improved, and the display effect of the display panel can be improved.

[0086] When the display panel includes light-emitting units of at least two light-emitting colors, the areas of the opening regions of the light-emitting units of different light-emitting colors are different. When different light-transmitting regions C are arranged corresponding to light-emitting units of different light-emitting colors, the different light-transmitting regions C have different areas, so that the different light-transmitting regions C can match the opening regions of the light-emitting units of different light-emitting colors. When the area of ​​one light-transmitting region C is larger than the area of ​​another light-transmitting region C, the area of ​​the opening region of the light-emitting unit corresponding to the one light-transmitting region C is larger than the area of ​​the opening region of the light-emitting unit corresponding to the other light-transmitting region C. At this time, the light transmittance of at least a portion of the shading area D adjacent to a light-transmitting area C is set to be lower than the light transmittance of at least a portion of the shading area D adjacent to another light-transmitting area C, so that the height of a first lens layer formed at at least a portion of the shading area D adjacent to a light-transmitting area C is greater than the height of another first lens layer formed at at least a portion of the shading area D adjacent to another light-transmitting area C, so that the light convergence of the light-emitting unit corresponding to the one light-transmitting area C can be made greater than the light convergence of the light-emitting unit corresponding to the other light-transmitting area C, so that the difference in light convergence of light-emitting units of different light-emitting colors can be compensated by the difference in height of the first lens layer, thereby improving the consistency of light extraction rates of light-emitting units of different light-emitting colors, improving the color cast problem of the display panel, and improving the display effect of the display panel.

[0087] For example, continue to refer to Figure 4 , the display panel may include a first color light emitting unit and a second color light emitting unit, the opening area of ​​the first color light emitting unit is larger than the opening area of ​​the second color light emitting unit, the first light-transmitting area C1 corresponds to the first color light emitting unit, and the second light-transmitting area C2 corresponds to the second color light emitting unit. At this time, the area of ​​the first light-transmitting area C1 is set to be larger than the area of ​​the second light-transmitting area C2, so that the first light-transmitting area C1 matches the first color light emitting unit, and the second light-transmitting area C2 matches the second color light emitting unit. When the shading area D is set between the first light-transmitting area C1 and the second light-transmitting area C2, the shading area D includes the first light-shielding area D1 and the second light-shielding area D2, and the first light-shielding area D1 surrounds the first light-transmitting area C1 to form a first color lens layer surrounding the first color light emitting unit. The second light-shielding area D2 surrounds the second light-transmitting area C2 to form a second color lens layer surrounding the second color light emitting unit. By setting the light transmittance of the first light shielding area D1 to be less than the light transmittance of the second light shielding area D2, the height of the first color lens layer can be made greater than the height of the second color lens layer, so that the light convergence of the first color lens layer to the first color light emitting unit can be made greater than the light convergence of the second color lens layer to the second color light emitting unit, thereby improving the consistency of the light extraction rate of the first color light emitting unit and the second color light emitting unit. Exemplarily, the first color light emitting unit is a red light emitting unit, and the second color light emitting unit is a green light emitting unit.

[0088] The technical solution of this embodiment sets different light transmittances of at least part of the light-shielding area of ​​the mask, so that the height of the first lens layer of the display panel formed by the mask is different. Therefore, the degree of convergence of light of light-emitting units of different luminous colors can be adjusted by the height of the first lens layer, so as to improve the consistency of light extraction rate of light-emitting units of different luminous colors, thereby improving the viewing angle color cast phenomenon of the display panel and improving the display effect of the display panel.

[0089] Continue to refer Figure 4 The light-transmitting area C also includes a third light-transmitting area C3; the area of ​​the third light-transmitting area C3 is larger than the area of ​​the second light-transmitting area C2, and smaller than the area of ​​the first light-transmitting area C1; at least one light-shielding area D also includes a third light-shielding area D3; the third light-shielding area D3 surrounds the third light-transmitting area C3; the light transmittance of the third light-shielding area D3 is smaller than the light transmittance of the second light-shielding area D2, and greater than the light transmittance of the first light-shielding area D1.

[0090] Specifically, the display panel also includes a third color light emitting unit, the opening area of ​​the third color light emitting unit is larger than the opening area of ​​the second color light emitting unit, and smaller than the opening area of ​​the first color light emitting unit, and the third light-transmitting area C3 corresponds to the third color light emitting unit. At this time, the area of ​​the third light-transmitting area C3 is set to be larger than the area of ​​the second light-transmitting area C2, and smaller than the area of ​​the first light-transmitting area C1, so that the third light-transmitting area C3 matches the third color light emitting unit. When the shading area D is set between the first light-transmitting area D1 and the third light-transmitting area D3, the shading area D includes the first shading area D1 and the third shading area D3, and the first shading area D1 surrounds the first light-transmitting area C1, and is used to form a first color lens layer surrounding the first color light emitting unit. The third light-shielding area D3 surrounds the third light-transmitting area C3, and is used to form a third color lens layer surrounding the third color light emitting unit. When the shading area D is arranged between the second light-transmitting area D2 and the third light-transmitting area D3, the shading area D includes the second shading area D2 and the third shading area D3, and the second shading area D2 surrounds the second light-transmitting area C2 to form a second color lens layer surrounding the second color light-emitting unit. The third shading area D3 surrounds the third light-transmitting area C3 to form a third color lens layer surrounding the third color light-emitting unit. By setting the light transmittance of the third shading area D3 to be less than the light transmittance of the second shading area D2, the height of the third color lens layer is greater than the height of the second color lens layer, so that the light convergence of the third color lens layer to the third color light-emitting unit is greater than the light convergence of the second color lens layer to the second color light-emitting unit, thereby improving the consistency of the light extraction rate of the second color light-emitting unit and the third color light-emitting unit. At the same time, the light transmittance of the third light shielding area D3 is greater than that of the first light shielding area D1, so that the height of the third color lens layer is less than that of the first color lens layer, so that the light convergence of the first color lens layer to the first color light emitting unit is greater than the light convergence of the third color lens layer to the third color light emitting unit, thereby improving the consistency of the light extraction rate of the first color light emitting unit and the third color light emitting unit. Therefore, the color cast problem of the display panel can be improved, and the display effect of the display panel can be improved.

[0091] In some embodiments, light transmittances of light-shielding areas adjacent to the same light-transmitting area are the same.

[0092] Specifically, when there are multiple light-emitting units of the same light-emitting color, the mask layer may include multiple light-transmitting areas of the same type. Different shading areas may be arranged adjacent to the same light-transmitting area. At this time, the light transmittance of the shading areas arranged adjacent to the same light-transmitting area is the same, so that the first lens layers surrounding the light-emitting units of the same light-emitting color have the same height, thereby further improving the consistency of light extraction rates of different light-emitting units and improving the color cast problem of the display panel. Exemplarily, when the display panel includes multiple red light-emitting units, the mask layer includes multiple first light-transmitting areas, and the light transmittance of the first shading areas arranged adjacent to different first light-transmitting areas is the same, so that the height of the first lens layers surrounding the red light-emitting units is the same, thereby improving the consistency of light extraction rates of different red light-emitting units and improving the color cast problem of the display panel.

[0093] Figure 5 A schematic diagram of another mask structure provided by an embodiment of the present invention. Figure 5 As shown, the mask layer 220 at least includes a first semi-permeable film layer 221 and a second semi-permeable film layer 222; the first semi-permeable film layer 221 is disposed in the first light-shielding area D1 and the second light-shielding area D2; the second semi-permeable film layer 222 is disposed in the first light-shielding area D1, and in the first light-shielding area D1, the first semi-permeable film layer 221 and the second semi-permeable film layer 222 are stacked. The light transmittance of the first semi-permeable film layer 221 is less than the light transmittance of the second semi-permeable film layer 222.

[0094] Specifically, the light transmittance of the first semi-transmissive membrane layer 221 is less than or equal to 100%, and the light transmittance of the second semi-transmissive membrane layer 222 is less than 100%. In the first light-shielding area D1, the first semi-transmissive membrane layer 221 and the second semi-transmissive membrane layer 222 are stacked, and in the second light-shielding area D2, only the second semi-transmissive membrane layer 222 is arranged, so that the light transmittance of the first light-shielding area D1 is less than the light transmittance of the second light-shielding area D2.

[0095] Continue to refer Figure 5 The mask layer 220 further includes a third semi-permeable film layer 223; the third semi-permeable film layer 223 is disposed in the first light-shielding area D1 and the third light-shielding area D3; the second semi-permeable film layer 222 is also disposed in the third light-shielding area D3, in the first light-shielding area D1, the first semi-permeable film layer 221, the second semi-permeable film layer 222 and the third semi-permeable film layer 223 are stacked, and the third semi-permeable film layer 223 is disposed between the first semi-permeable film layer 221 and the second semi-permeable film layer 222; in the third light-shielding area D3, the second semi-permeable film layer 222 and the third semi-permeable film layer 223 are stacked. The light transmittance of the first semi-permeable film layer 221 is less than the light transmittance of the third semi-permeable film layer 223.

[0096] Specifically, the light transmittance of the third semi-permeable film layer 223 is less than 100%. When the light-transmitting area C includes the third light-transmitting area C3, the third semi-permeable film layer 223 can be additionally provided in the first light-shielding area D1, so that the first semi-permeable film layer 221, the second semi-permeable film layer 222 and the third semi-permeable film layer 223 are stacked in the first light-shielding area D1; the third semi-permeable film layer 223 is additionally provided in the third light-shielding area D2, so that the second semi-permeable film layer 222 and the third semi-permeable film layer 223 are stacked in the third light-shielding area D3, and only the second semi-permeable film layer 222 is provided in the second light-shielding area D2, so that the light transmittance of the first light-shielding area D1 can be less than that of the third light-shielding area D3, and the light transmittance of the third light-shielding area D3 can be less than that of the second light-shielding area D2. The height of the first color lens layer formed in the first shading area D1 is greater than the height of the third color lens layer formed in the third shading area D3 , and the height of the third color lens layer formed in the third shading area D3 is greater than the height of the second color lens layer formed in the second shading area D2 .

[0097] In some embodiments, a first semi-transmissive membrane layer may be disposed in the first shading area, and a second semi-transmissive membrane layer may be disposed in the second shading area, and the light transmittance of the first semi-transmissive membrane layer may be less than that of the second semi-transmissive membrane layer.

[0098] Specifically, when the light transmittance of the first semi-transparent membrane layer is less than that of the second semi-transparent membrane layer, the first semi-transparent membrane layer can be arranged in the first shading area and the second semi-transparent membrane layer can be arranged in the second shading area. Similarly, the light transmittance of the first shading area can be less than that of the second shading area.

[0099] In some embodiments, the mask layer also includes a third semi-transparent membrane layer; the first semi-transparent membrane layer can also be arranged in the first shading area, the second semi-transparent membrane layer can be arranged in the second shading area, and the third semi-transparent membrane layer can be arranged in the third shading area, the light transmittance of the first semi-transparent membrane layer is less than the light transmittance of the second semi-transparent membrane layer, the light transmittance of the third semi-transparent membrane layer is less than the light transmittance of the second semi-transparent membrane layer, and is greater than the light transmittance of the first semi-transparent membrane layer.

[0100] Specifically, when the light-transmitting area includes the third light-transmitting area, a third semi-transmissive film layer may be provided in the third light-shielding area, and the light transmittance of the third semi-transmissive film layer is greater than that of the first semi-transmissive film layer, and less than that of the second semi-transmissive film layer, so that the light transmittance of the first light-shielding area is less than that of the third light-shielding area, and the light transmittance of the third light-shielding area is less than that of the second light-shielding area. The height of the first color lens layer formed in the first light-shielding area is greater than that of the third color lens layer formed in the third light-shielding area, and the height of the third color lens layer formed in the third light-shielding area is greater than that of the second color lens layer formed in the second light-shielding area.

[0101] Figure 6A schematic diagram of the structure of another mask provided by an embodiment of the present invention. Figure 6 As shown, the thickness of the mask layer 220 in the first light-shielding area D1 is greater than the thickness of the mask layer 220 in the second light-shielding area D2.

[0102] Specifically, the mask layer 220 can be a semi-transparent film layer. The greater the thickness of the mask layer 220, the lower the light transmittance. By setting the thickness of the mask layer 220 in the first shading area D1 to be greater than the thickness of the mask layer 220 in the second shading area D2, the light transmittance of the first shading area D1 is less than the light transmittance of the second shading area D2, so that the height of the first color lens layer formed in the first shading area D1 can be greater than the height of the second color lens layer formed in the second shading area D2, so that the light convergence of the first color lens layer to the first color light-emitting unit is greater than the light convergence of the second color lens layer to the second color light-emitting unit, thereby improving the consistency of the light extraction rate of the first color light-emitting unit and the second color light-emitting unit. Thereby, the color cast problem of the display panel can be improved and the display effect of the display panel can be improved. Exemplarily, the mask layer 220 can form semi-transparent films of different thicknesses by etching twice.

[0103] Continue to refer Figure 6 When the light-shielding area D includes the third light-shielding area D3, the thickness of the mask layer 220 in the third light-shielding area D3 is greater than the thickness of the mask layer 220 in the second light-shielding area D2, and is less than the thickness of the mask layer 220 in the first light-shielding area D1.

[0104] Specifically, when the shading area D includes the third shading area D3, the thickness of the mask layer 220 in the third shading area D3 is greater than the thickness of the mask layer 220 in the second shading area D2, and less than the thickness of the mask layer 220 in the first shading area D1, so that the light transmittance of the first shading area D1 is less than the light transmittance of the third shading area D3, and the light transmittance of the third shading area D3 is less than the light transmittance of the second shading area D2, so that the height of the first color lens layer is greater than the height of the third color lens layer, and the height of the third color lens layer is greater than the height of the second color lens layer.

[0105] In some embodiments, the mask layer may also be configured to have a pattern in the light-shielding area, and the number of pattern slits in the first light-shielding area is less than the number of pattern slits in the second light-shielding area.

[0106] Specifically, the pattern slit can be a gap smaller than the exposure accuracy in the photolithography process. Exemplarily, when the exposure accuracy is 0.2 nanometers, the width of the pattern slit can be 0.1 nanometers. In the photolithography process, by setting the pattern slit in the shading area, the exposure thickness of the film layer in the photolithography process can be controlled, so that the height of the first lens layer can be controlled. At this time, the number of pattern slits in the first shading area can be set to be smaller than the number of pattern slits in the second shading area, so that the light transmittance of the first shading area is smaller than the light transmittance of the second shading area, so that the height of the first color lens layer formed in the first shading area can be greater than the height of the second color lens layer formed in the second shading area.

[0107] In some embodiments, when the light shielding area includes a third light shielding area, the number of pattern slits in the third light shielding area is less than the number of pattern slits in the second light shielding area, and is greater than the number of pattern slits in the first light shielding area.

[0108] Specifically, when the shading area includes the third shading area, the number of pattern slits in the third shading area is less than the number of pattern slits in the second shading area, and is greater than the number of pattern slits in the first shading area, so that the light transmittance of the third shading area is greater than the light transmittance of the first shading area, and less than the light transmittance of the second shading area, so that the height of the first color lens layer is greater than the height of the third color lens layer, and the height of the third color lens layer is greater than the height of the second color lens layer.

[0109] An embodiment of the present invention further provides a display device. Figure 7 FIG. 1 is a schematic diagram of a display device provided by an embodiment of the present invention. Figure 7 As shown, the display device 20 includes the display panel 21 provided by any embodiment of the present invention. Since the display device 20 includes the display panel 21 provided by any embodiment of the present invention, it has the same beneficial effects as the display panel 21 provided by any embodiment of the present invention, and will not be repeated here. The display device 20 can be, for example, a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, a smart wearable device, an information inquiry machine in a public place hall, and any other product or component with a display function.

[0110] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection 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, and may include more other equivalent embodiments without departing from the concept 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, characterized in that: include: substrate; Light-emitting units of at least two luminous colors are arranged on the same side of the substrate; The first lens layer is arranged on a side of the light emitting unit away from the substrate, and the first lens layer at least partially surrounds the light emitting unit; the light emitting units of different light emitting colors are surrounded by the first lens layer at different heights.

2. The display panel according to claim 1, characterized in that: The display panel comprises: A pixel definition layer is arranged on one side of the substrate, an opening area and a non-opening area are arranged on the pixel definition layer, and the first lens layer is arranged in the non-opening area; The light-emitting unit comprises: a light-emitting layer, which is arranged on a side of the pixel definition layer away from the substrate, and at least a part of the light-emitting layer is arranged in the opening area; Preferably, the light-emitting units of different light-emitting colors correspond to different opening area areas; Preferably, when the area of ​​the opening region corresponding to a light-emitting unit of one light-emitting color is larger than the area of ​​the opening region corresponding to a light-emitting unit of another light-emitting color, the height of the first lens layer corresponding to the light-emitting unit of one light-emitting color is larger than the height of the first lens layer corresponding to the light-emitting unit of another light-emitting color; Preferably, the display panel comprises a first color light emitting unit, a second color light emitting unit and a third color light emitting unit, the opening area corresponding to the first color light emitting unit is larger than the opening area corresponding to the third color light emitting unit, and the opening area corresponding to the third color light emitting unit is larger than the opening area corresponding to the second color light emitting unit; the height of the first lens layer corresponding to the first color light emitting unit is larger than the height of the first lens layer corresponding to the third color light emitting unit, and the height of the first lens layer corresponding to the third color light emitting unit is larger than the height of the first lens layer corresponding to the second color light emitting unit; Preferably, the light emitting unit further comprises: A first electrode layer is disposed on a side of the light-emitting layer close to the substrate, and the first electrode layer is at least partially exposed in the opening area; The second electrode layer is arranged on a side of the light-emitting layer away from the substrate, and the second electrode layer covers the light-emitting layer.

3. The display panel according to claim 2, characterized in that: Also includes: The second lens layer is arranged on a side of the first lens layer away from the substrate, the second lens layer covers the first lens layer and the light emitting unit, and the refractive index of the second lens layer is greater than the refractive index of the first lens layer.

4. The display panel according to any one of claims 1 to 3, characterized in that: The first lens layer includes a first part and a second part; the first part at least partially surrounds a light-emitting unit of one light-emitting color, and the second part at least partially surrounds a light-emitting unit of another light-emitting color, and the height of the first part is different from the height of the second part; the first part and the second part are an integrated structure.

5. The display panel according to claim 1, characterized in that: Also includes: An encapsulation layer is disposed on a side of the light emitting unit away from the substrate and located on a side of the first lens layer close to the substrate; Preferably, the display panel further includes: The touch layer is disposed on a side of the packaging layer away from the substrate and is located on a side of the first lens layer close to the substrate.

6. A mask plate for manufacturing the display panel according to any one of claims 1 to 5; characterized in that: include: substrate; A mask layer is disposed on the substrate, and a light-transmitting area and a light-shielding area are disposed on the mask layer, wherein the light-transmitting area corresponds to the light-emitting unit, and the light-shielding area corresponds to the first lens layer. The light-transmitting area at least includes a first light-transmitting area and a second light-transmitting area, and the area of ​​the first light-transmitting area is larger than the area of ​​the second light-transmitting area; at least one of the light-shielding areas includes a first light-shielding area and a second light-shielding area, and the first light-shielding area surrounds the first light-transmitting area, and the second light-shielding area surrounds the second light-transmitting area; the light transmittance of the first light-shielding area is smaller than the light transmittance of the second light-shielding area.

7. The mask according to claim 6, characterized in that: The light-transmitting area further includes a third light-transmitting area; the area of ​​the third light-transmitting area is larger than the area of ​​the second light-transmitting area, and smaller than the area of ​​the first light-transmitting area; at least one of the light-shielding areas further includes a third light-shielding area; the third light-shielding area surrounds the third light-transmitting area; the light transmittance of the third light-shielding area is smaller than the light transmittance of the second light-shielding area, and larger than the light transmittance of the first light-shielding area; Preferably, the light transmittance of the light-shielding areas adjacent to the light-transmitting areas of the same type is the same.

8. The mask according to claim 7, characterized in that: The mask layer at least includes a first semi-permeable membrane layer and a second semi-permeable membrane layer; the first semi-permeable membrane layer is arranged in the first light-shielding area and the second light-shielding area; the second semi-permeable membrane layer is arranged in the first light-shielding area, and in the first light-shielding area, the first semi-permeable membrane layer and the second semi-permeable membrane layer are stacked; Alternatively, the first semi-permeable membrane layer is disposed in the first light-shielding area, the second semi-permeable membrane layer is disposed in the second light-shielding area, and the light transmittance of the first semi-permeable membrane layer is less than the light transmittance of the second semi-permeable membrane layer; Preferably, the mask layer further comprises a third semi-permeable membrane layer; the third semi-permeable membrane layer is arranged in the first light-shielding area and the third light-shielding area; the second semi-permeable membrane layer is also arranged in the third light-shielding area, in the first light-shielding area, the first semi-permeable membrane layer, the second semi-permeable membrane layer and the third semi-permeable membrane layer are stacked, and the third semi-permeable membrane layer is arranged between the first semi-permeable membrane layer and the second semi-permeable membrane layer; in the third light-shielding area, the second semi-permeable membrane layer and the third semi-permeable membrane layer are stacked; Alternatively, the first semi-permeable membrane layer is arranged in the first shading area, the second semi-permeable membrane layer is arranged in the second shading area, and the third semi-permeable membrane layer is arranged in the third shading area, the light transmittance of the first semi-permeable membrane layer is less than the light transmittance of the second semi-permeable membrane layer, the light transmittance of the third semi-permeable membrane layer is less than the light transmittance of the second semi-permeable membrane layer, and is greater than the light transmittance of the first semi-permeable membrane layer.

9. The mask according to claim 7, characterized in that: The thickness of the mask layer in the first light-shielding area is greater than the thickness of the mask layer in the second light-shielding area; and / or, The mask layer has a pattern in the light-shielding area, and the number of slits in the pattern in the first light-shielding area is less than the number of slits in the pattern in the second light-shielding area; Preferably, the thickness of the mask layer in the third light-shielding area is greater than the thickness of the mask layer in the second light-shielding area, and less than the thickness of the mask layer in the first light-shielding area; And / or, the number of the pattern slits in the third light-shielding area is less than the number of the pattern slits in the second light-shielding area, and is greater than the number of the pattern slits in the first light-shielding area.

10. A display device, characterized in that: A display panel comprising any one of claims 1 to 5.

Images