Display panel and display device

Patent metadata

Field	Value
Publication number	US-11226511-B2
Application number	US-201916670155-A
Country	US
Kind code	B2
Filing date	Oct 31, 2019
Priority date	Apr 30, 2019
Publication date	Jan 18, 2022
Grant date	Jan 18, 2022

Abstract

Display panel and display device are provided. The display panel includes: a color film substrate, an array substrate, at least one light sensitive unit, and collimating apertures penetrating a portion of film layers of the color film substrate and the array substrate along a first direction perpendicular to the display panel. The collimating apertures and the at least one light sensitive unit are disposed in a one-to-one correspondence. The color film substrate includes a first substrate, a first light-blocking layer with first openings, and at least one second light-blocking layer with second openings. The array substrate includes a third light-blocking layer with third openings. An orthographic projection of each first opening, an orthographic projection of a corresponding second opening, and an orthographic projection of a corresponding third opening, at least partially overlap an orthographic projection of a corresponding collimating aperture on the first substrate.

First claim

What is claimed is:

1. A display panel, comprising:
a color film substrate and an array substrate, that are oppositely configured;
a liquid crystal layer disposed between the color film substrate and the array substrate;
at least one light sensitive unit, configured at a side of the array substrate adjacent to the color film substrate;
collimating apertures, passing through a portion of film layers of the color film substrate and the array substrate along a first direction;
wherein:
the display panel includes a display region;
the display region includes opening areas arranged in an array and a non-opening area surrounding the opening areas;
the collimating apertures and the at least one light sensitive unit are disposed in the non-opening area;
the collimating apertures and the at least one light sensitive unit are disposed in a one-to-one correspondence;
the first direction is perpendicular to the display panel;
the color film substrate includes a first substrate, a first light-blocking layer, and at least one second light-blocking layer;
the first light-blocking layer is disposed at a side of the first substrate adjacent to the array substrate, and includes a plurality of first openings;
the at least one second light-blocking layer is disposed at a side of the first light-blocking layer adjacent to the array substrate, and includes a plurality of second openings;
the array substrate includes a third light-blocking layer;
the third light-blocking layer is disposed at the side of the array substrate adjacent to the color film substrate, and includes a plurality of third openings;
the first light-blocking layer and the second light-blocking layer are located on a side of the liquid crystal layer away from the array substrate, and the third light-blocking layer is located on a side of the liquid crystal layer close to the array substrate;
the collimating apertures pass sequentially through each first opening of the plurality of first openings in the first light-blocking layer, a corresponding second opening of the plurality of second openings in the second light-blocking layer, and a corresponding third opening of the plurality of third openings in the third light-blocking layer; and
an orthographic projection of each of the plurality of first openings on the first substrate, an orthographic projection of a corresponding second opening of the plurality of second openings on the first substrate, and an orthographic projection of a corresponding third opening of the plurality of third openings on the first substrate, at least partially overlap an orthographic projection of a corresponding collimating aperture of the collimating apertures on the first substrate.

2. The display panel according to claim 1 , wherein:
the array substrate includes a second substrate, a buffer layer, the at least one light sensitive unit, a common electrode layer, a first insulating layer, and a pixel electrode layer;
the buffer layer, the at least one light sensitive unit, the common electrode layer, the first insulating layer, and the pixel electrode layer are stacked on the second substrate sequentially;
the pixel electrode layer includes at least one fourth opening, or the first insulating layer includes at least one fifth opening; and
an orthographic projection of each of the at least one fourth opening on the first substrate at least partially overlaps an orthographic projection of a corresponding light sensitive unit of the at least one light sensitive unit, or an orthographic projection of each of the at least one fifth opening on the first substrate at least partially overlaps an orthographic projection of a corresponding light sensitive unit of the at least one light sensitive unit.

3. The display panel according to claim 2 , wherein:
the array substrate further includes a fourth light-blocking layer at a side of the buffer layer away from the at least one light sensitive unit; and
an orthographic projection of the at least one light sensitive unit on the second substrate is located within an orthographic projection of the fourth light-blocking layer on the second substrate.

4. The display panel according to claim 1 , wherein:
a ratio between a height h of the collimating apertures along the first direction and an aperture d of the collimating apertures is about 3:1 to about 10:1.

5. The display panel according to claim 4 , wherein:
the aperture d of the collimating apertures is larger than 3 μm and smaller than 10 μm.

6. The display panel according to claim 4 , wherein:
the collimating apertures have a light-collecting angle of about 12° to about 30°.

7. The display panel according to claim 1 , wherein:
the color film substrate includes a color film layer and at least one fifth light-blocking layer;
the color film layer and the at least one fifth light-blocking layer are disposed in a same single layer; and
the at least one fifth light-blocking layer is formed by stacking at least two of a red color blocker, a green color blocker, and a blue color blocker, along the first direction.

8. The display panel according to claim 1 , wherein:
the display panel further includes a non-display region surrounding the display region, and a fingerprint identification region;
the at least one light sensitive unit is disposed in the fingerprint identification region; and
an orthographic projection of the fingerprint identification region on the color film substrate at least partially overlaps an orthographic projection of the display region on the color film substrate.

9. The display panel according to claim 1 , wherein:
the collimating apertures have a cross-sectional shape including one of circle, oval, and rectangle.

10. A display panel, comprising:
a color film substrate and an array substrate, that are oppositely configured;
at least one light sensitive unit, configured at a side of the array substrate adjacent to the color film substrate;
collimating apertures, passing through a portion of film layers of the color film substrate and the array substrate along a first direction;
wherein:
the collimating apertures and the at least one light sensitive unit are disposed in a one-to-one correspondence;
the first direction is perpendicular to the display panel;
the color film substrate includes a first substrate, a first light-blocking layer, and at least one second light-blocking layer;
the first light-blocking layer is disposed at a side of the first substrate adjacent to the array substrate, and includes a plurality of first openings;
the at least one second light-blocking layer is disposed at a side of the first light-blocking layer adjacent to the array substrate, and includes a plurality of second openings;
the array substrate includes a third light-blocking layer;
the third light-blocking layer is disposed at the side of the array substrate adjacent to the color film substrate, and includes a plurality of third openings;
an orthographic projection of each of the plurality of first openings on the first substrate, an orthographic projection of a corresponding second opening of the plurality of second openings on the first substrate, and an orthographic projection of a corresponding third opening of the plurality of third openings on the first substrate, at least partially overlap an orthographic projection of a corresponding collimating aperture of the collimating apertures on the first substrate;
the array substrate includes a second substrate, a buffer layer, the at least one light sensitive unit, a common electrode layer, a first insulating layer, and a pixel electrode layer;
the buffer layer, the at least one light sensitive unit, the common electrode layer, the first ins

Assignees

• Xiamen Tianma Micro Electronics Co Ltd

Inventors

• Wu Ling
• Zheng Binyi
• Shen Boping

Classifications

• H10F39/8057

  Optical shielding · CPC title

• G02F1/133512

  Light shielding layers, e.g. black matrix (G02F1/136209 takes precedence) · CPC title

• G02F1/134363

  for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS] · CPC title

• G06V40/1318

  using electro-optical elements or layers, e.g. electroluminescent sensing · CPC title

• G02F1/13338 Primary

  Input devices, e.g. touch panels · CPC title