Display panel and display device

Patent metadata

Field	Value
Publication number	US-12495673-B2
Application number	US-202218089390-A
Country	US
Kind code	B2
Filing date	Dec 27, 2022
Priority date	May 23, 2022
Publication date	Dec 9, 2025
Grant date	Dec 9, 2025

Abstract

A display panel and a display device are provided in the disclosure. The display panel includes a carrier substrate, multiple emitting units disposed on the carrier substrate, and multiple light absorbing and reflecting assemblies. The multiple light absorbing and reflecting assemblies are disposed in correspondence with the multiple light emitting units and each of the multiple light absorbing and reflecting assemblies defines an opening, and where the light absorbing and reflecting assembly is configured to reflect at least part of light emitted by the light emitting unit to radiate through the opening, and to absorb external ambient light.

First claim

What is claimed is:

1 . A display panel, comprising:
a carrier substrate; a plurality of light emitting units disposed on the carrier substrate; and a plurality of light absorbing and reflecting assemblies disposed in correspondence with the plurality of light emitting units, wherein each of the plurality of light absorbing and reflecting assemblies has an arc-shaped cross section and defines a plurality of openings, and wherein the light absorbing and reflecting assembly is configured to reflect at least part of light emitted by the light emitting unit to radiate through the plurality of openings, and to absorb external ambient light, wherein the plurality of openings surround a vertex of the light absorbing and reflecting assembly away from the light emitting unit, or one of the plurality of openings is at the vertex of the light absorbing and reflecting assembly away from the light emitting unit and remaining openings of the plurality of openings surround the vertex of the light absorbing and reflecting assembly away from the light emitting unit.

2 . The display panel of claim 1 , wherein the light absorbing and reflecting assembly comprises a support member, a reflecting member, and a first light-absorbing member which are sequentially stacked along a direction away from the light emitting unit, the support member supports the reflecting member and the first light-absorbing member, the plurality of openings penetrates through the reflecting member and the first light-absorbing member, the reflecting member is configured to reflect the at least part of light emitted by the light emitting unit to radiate through the plurality of openings, and the first light-absorbing member is configured to absorb the external ambient light.

3 . The display panel of claim 2 , wherein the reflecting member protrudes towards the direction away from the light emitting unit, and a thickness of the reflecting member is between 100 A° and 300 A°.

4 . The display panel of claim 2 , wherein the support member protrudes towards the direction away from the light emitting unit, and a maximum size of the support member along the direction away from the light emitting unit is between 1 μm and 3 μm.

5 . The display panel of claim 2 , wherein a thickness of the first light-absorbing member is between 0.5 μm and 1.5 μm.

6 . The display panel of claim 2 , wherein a length of each of the plurality of openings is between 1 μm and 10 μm, and a width of each of the plurality of openings is between 1 μm and 10 μm.

7 . The display panel of claim 2 , wherein each of the reflecting member and the support member has an arc-shaped cross section.

8 . The display panel of claim 1 , a total area of the plurality of openings is between 1 μm 2 and 100 μm 2 .

9 . The display panel of claim 1 , wherein
the light emitting unit comprises an anode, a light emitting layer, and a cathode which are electrically coupled in sequence, and a second light-absorbing member; and the anode has a first region and a second region disposed at a periphery of the first region, the light emitting layer is disposed in the first region, and the second light-absorbing member is disposed in the second region and configured to absorb the external ambient light.

10 . The display panel of claim 9 , wherein an orthographic projection of the light absorbing and reflecting assembly on the carrier substrate covers an orthographic projection of the light emitting layer on the carrier substrate.

11 . A display device, comprising a display panel and a casing carrying the display panel, the display panel comprising:
a carrier substrate; a plurality of light emitting units disposed on the carrier substrate; and a plurality of light absorbing and reflecting assemblies disposed in correspondence with the plurality of light emitting units, wherein each of the plurality of light absorbing and reflecting assemblies has an arc-shaped cross section and defines a plurality of openings, and wherein the light absorbing and reflecting assembly is configured to reflect at least part of light emitted by the light emitting unit to radiate through the plurality of openings, and to absorb external ambient light, wherein the plurality of openings surround a vertex of the light absorbing and reflecting assembly away from the light emitting unit, or one of the plurality of openings is at the vertex of the light absorbing and reflecting assembly away from the light emitting unit and remaining openings of the plurality of openings surround the vertex of the light absorbing and reflecting assembly away from the light emitting unit.

12 . The display device of claim 11 , wherein the light absorbing and reflecting assembly comprises a support member, a reflecting member, and a first light-absorbing member which are sequentially stacked along a direction away from the light emitting unit, the support member supports the reflecting member and the first light-absorbing member, the plurality of openings penetrates through the reflecting member and the first light-absorbing member, the reflecting member is configured to reflect the at least part of light emitted by the light emitting unit to radiate through the plurality of openings, and the first light-absorbing member is configured to absorb the external ambient light.

13 . The display device of claim 12 , wherein the reflecting member protrudes towards the direction away from the light emitting unit, and a thickness of the reflecting member is between 100 A° and 300 A°.

14 . The display device of claim 12 , wherein the support member protrudes towards the direction away from the light emitting unit, and a maximum size of the support member along the direction away from the light emitting unit is between 1 μm and 3 μm.

15 . The display device of claim 12 , wherein a thickness of the first light-absorbing member is between 0.5 μm and 1.5 μm.

16 . The display device of claim 12 , wherein a length of each of the plurality of openings is between 1 μm and 10 μm, and a width of each of the plurality of openings is between 1 μm and 10 μm.

17 . The display device of claim 11 , a total area of the plurality of openings is between 1 μm 2 and 100 μm 2 .

18 . The display device of claim 12 , wherein each of the reflecting member and the support member has an arc-shaped cross section.

Assignees

• Chongqing Hkc Optoelectronics Tech Co Ltd
• Hkc Corp Ltd

Inventors

• Pu Yang
• Li Rongrong

Classifications

• H10K59/12

  Active-matrix OLED [AMOLED] displays · CPC title

• H10K59/8792

  comprising light absorbing layers, e.g. black layers · CPC title

• H10K50/865 Primary

  comprising light absorbing layers, e.g. light-blocking layers · CPC title

• H10K59/878 Primary

  comprising reflective means · CPC title

• H10K50/856 Primary

  comprising reflective means · CPC title