CN-121995664-A - Display panel, preparation method thereof and display device

Abstract

The embodiment of the application provides a display panel, a preparation method thereof and a display device, wherein the display panel comprises an array substrate, a liquid crystal layer, a color film layer and a light source, the color film layer comprises a light filtering film layer, a black matrix film layer and a light modulating layer, the black matrix film layer is limited with a plurality of opening areas, the light modulating layer comprises a flat layer and a plurality of lens units, the orthographic projection of the lens units on the array substrate and the orthographic projection of the corresponding opening areas on the array substrate are at least partially overlapped, the refractive index of the lens units is larger than that of the flat layer, the flat layer is provided with interfaces respectively connected with the lens units, and at least part of light from the light source enters the opening areas after passing through the interfaces. According to the technology of the application, the light emitted by the light source is refracted through the interface between the flat layer and the lens unit, so that the path of the light emitted by the light source is changed, the light emitted by the light source and irradiated to the black matrix film layer enters the opening area through refraction, and the transmittance of the display panel is further improved.

Inventors

• JIANG ZHILIANG
• XIE JIANYUN
• BI YAO
• SUN JIAN
• CHEN YANQING
• CHEN KAI
• ZHANG HAN

Assignees

• 京东方科技集团股份有限公司
• 北京京东方创元科技有限公司

Dates

Publication Date

20260508

Application Date

20241108

Claims (15)

1. 1. A display panel, comprising: An array substrate; The liquid crystal layer is arranged on one side of the array substrate; the color film layer is arranged on one side of the liquid crystal layer, which is away from the array substrate, and comprises a light filtering film layer, a black matrix film layer and a light modulating layer which are sequentially arranged in the direction, which is away from the array substrate, wherein the black matrix film layer is defined with a plurality of opening areas, the light filtering film layer comprises a plurality of light filtering areas which are in one-to-one correspondence with the opening areas, the light modulating layer comprises a flat layer and a plurality of lens units, the lens units are embedded in the flat layer and are in one-to-one correspondence with the opening areas, and the orthographic projection of the lens units on the array substrate at least partially overlaps with the orthographic projection of the corresponding opening areas on the array substrate; The light source is arranged on one side of the color film layer, which is away from the array substrate; the refractive index of the lens unit is larger than that of the flat layer, the flat layer is provided with interfaces respectively connected with the lens units, and at least part of light rays from the light source enter the opening area after passing through the interfaces.
2. 2. The display panel according to claim 1, wherein the refractive index of the lens unit is in the range of 1.6 to 1.8.
3. 3. The display panel of claim 1, wherein the flat layer has a refractive index in the range of 1.3 to 1.5.
4. 4. The display panel according to claim 1, wherein a material of the lens unit includes an organic resin.
5. 5. The display panel of claim 1, further comprising: And the plurality of flat layers are arranged on one side of the glass substrate facing the array substrate.
6. 6. The display panel according to claim 5, wherein the lens unit is located at a side of the flat layer facing the glass substrate, the interface includes a bottom surface, a top surface, and side surfaces, the bottom surface and the top surface are spaced apart and parallel in a direction of the light source facing the array substrate, a diameter of the bottom surface is larger than a diameter of the top surface, and the side surfaces are respectively connected to an edge of the top surface and an edge of the bottom surface.
7. 7. The display panel of claim 6, wherein the side surface comprises a curved surface.
8. 8. The display panel of claim 6, wherein the slope angle of the side surface is 50 ° to 60 °.
9. 9. The display panel of claim 5, wherein the lens unit is located at a side of the flat layer facing the array substrate, the interface comprises a bottom surface and a top surface, the bottom surface and the top surface are spaced apart in a direction of the light source facing the array substrate, and a diameter of the bottom surface is larger than a diameter of the top surface.
10. 10. The display panel of claim 9, wherein the bottom surface comprises a spherical surface.
11. 11. The display panel according to any one of claims 1 to 10, wherein a thickness of the lens unit in a direction perpendicular to the array substrate is 3um to 5um.
12. 12. The display panel according to any one of claims 1 to 10, wherein the thickness of the flat layer in a direction perpendicular to the array substrate is 8um to 15um.
13. 13. The display panel according to any one of claims 1 to 10, wherein a distance between two adjacent lens units is 1um to 1.5um.
14. 14. A method for manufacturing a display panel, comprising: Providing a glass substrate; Preparing a light modulation layer on one side of a glass substrate, wherein the light modulation layer comprises a flat layer and a plurality of lens units; Preparing a plurality of black matrixes at one side of the flat layer, which is far away from the glass substrate, wherein the black matrixes are arranged at intervals, openings are defined between two adjacent black matrixes, the openings are in one-to-one correspondence with the lens units, and the orthographic projection of the lens units on the glass substrate at least partially overlaps with the orthographic projection of the corresponding openings on the glass substrate; Preparing a liquid crystal layer on one side of the black matrixes, which is away from the glass substrate; and preparing an array substrate on one side of the liquid crystal layer, which is away from the glass substrate.
15. 15. A display device comprising the display panel according to any one of claims 1 to 13.

Description

Display panel, preparation method thereof and display device Technical Field The application relates to the technical field of display, in particular to a display panel, a preparation method thereof and a display device. Background The transmissive projector uses a light source to penetrate a Liquid crystal display (Liquid CRYSTAL DISPLAY, LCD) screen and then display a picture on the screen, and the transmittance of the screen and the brightness of the light source determine the final display brightness. In the related art, the light emitted from the light source is emitted through the opening area on the black matrix film after passing through the glass substrate, but part of the light emitted from the light source is irradiated onto the black matrix film, and the light irradiated onto the black matrix film is absorbed by the black matrix film, so that the transmittance of the display panel is not high. Disclosure of Invention The embodiment of the application provides a display panel, a preparation method thereof and a display device, which are used for solving or relieving one or more technical problems in the prior art. As an aspect of an embodiment of the present application, an embodiment of the present application provides a display panel including: An array substrate; The liquid crystal layer is arranged on one side of the array substrate; The color film layer is arranged on one side of the liquid crystal layer, which is away from the array substrate, and comprises a light filtering film layer, a black matrix film layer and a light modulating layer which are sequentially arranged in the direction, which is away from the array substrate, wherein the black matrix film layer is defined with a plurality of opening areas, the light filtering film layer comprises light filtering areas which are in one-to-one correspondence with the plurality of opening areas, the light modulating layer comprises a flat layer and a plurality of lens units, the plurality of lens units are embedded in the flat layer and are in one-to-one correspondence with the plurality of opening areas, and the orthographic projection of the lens units on the array substrate at least partially overlaps with the orthographic projection of the corresponding opening areas on the array substrate; the light source is arranged on one side of the color film layer, which is away from the array substrate; The refractive index of the lens unit is larger than that of the flat layer, the flat layer is provided with interfaces respectively connected with the lens units, and at least part of light rays from the light source enter the opening area after passing through the interfaces. In some embodiments, the refractive index of the lens unit ranges from 1.6 to 1.8. In some embodiments, the refractive index of the planar layer ranges from 1.3 to 1.5. In some embodiments, the material of the lens unit comprises an organic resin. In some embodiments, the array substrate further comprises a glass substrate, and the plurality of flat layers are disposed on a side of the glass substrate facing the array substrate. In some embodiments, the lens unit is positioned on one side of the flat layer facing the glass substrate, the interface comprises a bottom surface, a top surface and a side surface, the bottom surface and the top surface are arranged at intervals and parallel in the direction of the light source facing the array substrate, the diameter of the bottom surface is larger than that of the top surface, and the side surface is respectively connected with the edge of the top surface and the edge of the bottom surface. In some embodiments, the side surface comprises a curved surface. In some embodiments, the slope angle of the side is 50 ° to 60 °. In some embodiments, the lens unit is located on a side of the planar layer facing the array substrate, the interface includes a bottom surface and a top surface, the bottom surface and the top surface are spaced apart in a direction of the light source facing the array substrate, and a diameter of the bottom surface is greater than a diameter of the top surface. In some embodiments, the bottom surface comprises a spherical surface. In some embodiments, the thickness of the lens unit in a direction perpendicular to the array substrate is 3um to 5um. In some embodiments, the thickness of the flat layer in a direction perpendicular to the array substrate is 8um to 15um. In some embodiments, the distance between two adjacent lens units is 1um to 1.5um. As another aspect of the present application, an embodiment of the present application further provides a method for manufacturing a display panel, including: Providing a glass substrate; Preparing a light modulation layer on one side of a glass substrate, wherein the light modulation layer comprises a flat layer and a plurality of lens units; Preparing a plurality of black matrixes at one side of the flat layer, which is far away from the glass substrate, wherein th