Display panel and display device

Patent metadata

Field	Value
Publication number	US-12137582-B2
Application number	US-202117472515-A
Country	US
Kind code	B2
Filing date	Sep 10, 2021
Priority date	Feb 3, 2021
Publication date	Nov 5, 2024
Grant date	Nov 5, 2024

Abstract

Embodiments of the present disclosure disclose a display panel and a display device. The display panel includes: a base substrate, a light-emitting device located on the base substrate, a first flat layer located on a side of the light-emitting device away from the base substrate, and a black matrix located on a side of the first flat layer away from the base substrate, wherein the black matrix has a plurality of opening regions, and color filters are arranged in corresponding opening regions; the color filters are configured to filter external incident light; and the first flat layer has a plurality of first concave faces arranged corresponding to the opening regions, the color filters fill the first concave faces, and the color filters further cover peripheral regions of the first concave faces.

First claim

What is claimed is:

1. A display panel, comprising: a base substrate, a light-emitting device located on the base substrate, a first flat layer located on a side of the light-emitting device away from the base substrate, and a black matrix located on a side of the first flat layer away from the base substrate, wherein the black matrix has a plurality of opening regions, color filters are arranged in corresponding opening regions, and the color filters are configured to filter external incident light; and
the first flat layer has a plurality of first concave faces arranged corresponding to the opening regions, the color filters fill the first concave faces, and the color filters further cover peripheral regions of the first concave faces;
wherein the display panel further comprises:
a second flat layer located on a side of each of the color filters away from the base substrate, and an optical adhesive layer located on a side of the second flat layer away from the base substrate;
wherein the second flat layer has a plurality of second concave faces arranged corresponding to the opening regions, and the optical adhesive layer fills the second concave faces; and a refractive index of the second flat layer is larger than a refractive index of the optical adhesive layer.

2. The display panel according to claim 1 , wherein a refractive index of each of the color filters is larger than a refractive index of the first flat layer.

3. The display panel according to claim 1 , wherein an area of an orthographic projection of each of the second concave faces on the base substrate is larger than an area of an orthographic projection of each of the first concave faces on the base substrate.

4. The display panel according to claim 1 , wherein a refractive index of the first flat layer and the refractive index of the second flat layer are in a range of 1.50 to 1.64, a refractive index of each of the color filters is in a range of 1.60 to 1.70, and the refractive index of the optical adhesive layer is in a range of 1.40 to 1.50.

5. The display panel according to claim 1 , further comprising a second flat layer located on a side of each of the color filters away from the base substrate; and surfaces of the color filters making contact with the black matrix and the second flat layer are convex faces.

6. The display panel according to claim 5 , wherein a ratio of an aperture of each of the convex faces to an aperture of each of the first concave faces is in a range of 6/5 to 4/3.

7. The display panel according to claim 5 , wherein a shape of an orthographic projection of each of the convex faces on the base substrate comprises a circular shape or an oval shape.

8. The display panel according to claim 5 , wherein the color filters comprise red filters, green filters and blue filters, a quantity of the red filters and a quantity of the blue filters are both ½ of a quantity of the green filters, and sizes of the red filters and sizes of the blue filters are larger than sizes of the green filters.

9. The display panel according to claim 1 , further comprising: a thin film transistor array layer located between the base substrate and the light-emitting device, and an encapsulation layer located between the light-emitting device and the first flat layer.

10. The display panel according to claim 9 , further comprising a touch control layer located between the encapsulation layer and the first flat layer.

11. A display device, comprising a display panel, wherein the display panel comprises: a base substrate, a light-emitting device located on the base substrate, a first flat layer located on a side of the light-emitting device away from the base substrate, and a black matrix located on a side of the first flat layer away from the base substrate, wherein the black matrix has a plurality of opening regions, color filters are arranged in corresponding opening regions, and the color filters are configured to filter external incident light; and
the first flat layer has a plurality of first concave faces arranged corresponding to the opening regions, the color filters fill the first concave faces, and the color filters further cover peripheral regions of the first concave faces;
wherein the display panel further comprises:
a second flat layer located on a side of each of the color filters away from the base substrate, and an optical adhesive layer located on a side of the second flat layer away from the base substrate;
wherein the second flat layer has a plurality of second concave faces arranged corresponding to the opening regions, and the optical adhesive layer fills the second concave faces; and a refractive index of the second flat layer is larger than a refractive index of the optical adhesive layer.

12. The display device according to claim 11 , wherein a refractive index of each of the color filters is larger than a refractive index of the first flat layer.

13. The display device according to claim 11 , wherein an area of an orthographic projection of each of the second concave faces on the base substrate is larger than an area of an orthographic projection of each of the first concave faces on the base substrate.

14. The display device according to claim 11 , wherein a refractive index of the first flat layer and the refractive index of the second flat layer are in a range of 1.50 to 1.64, a refractive index of each of the color filters is in a range of 1.60 to 1.70, and the refractive index of the optical adhesive layer is in a range of 1.40 to 1.50.

15. The display device according to claim 11 , further comprising a second flat layer located on a side of each of the color filters away from the base substrate; and surfaces of the color filters making contact with the black matrix and the second flat layer are convex faces.

16. The display device according to claim 15 , wherein a ratio of an aperture of each of the convex faces to an aperture of each of the first concave faces is in a range of 6/5 to 4/3.

17. The display device according to claim 15 , wherein a shape of an orthographic projection of each of the convex faces on the base substrate comprises a circular shape or an oval shape.

18. The display device according to claim 15 , wherein the color filters comprise red filters, green filters and blue filters, a quantity of the red filters and a quantity of the blue filters are both ½ of a quantity of the green filters, and sizes of the red filters and sizes of the blue filters are larger than sizes of the green filters.

Assignees

• Chengdu Boe Optoelect Tech Co
• Boe Technology Group Co Ltd

Inventors

• Wang Jiali
• Huang Chienpang
• Ru Qiaoqiao
• Jiang Chuntong
• Wang Yanqiang
• Fang Fei
• Guo Yuanzheng
• Hou Peng
• Yang Chao
• Li Jie

Classifications

• H10K59/8791

  Arrangements for improving contrast, e.g. preventing reflection of ambient light · CPC title

• H10K59/879

  comprising refractive means, e.g. lenses · CPC title

• H10K59/12 Primary

  Active-matrix OLED [AMOLED] displays · CPC title

• H10K59/38 Primary

  comprising colour filters or colour changing media [CCM] · CPC title

• H10K59/35

  comprising red-green-blue [RGB] subpixels · CPC title