Display device and vehicle

Patent metadata

Field	Value
Publication number	US-12058901-B2
Application number	US-202217874609-A
Country	US
Kind code	B2
Filing date	Jul 27, 2022
Priority date	Jun 30, 2022
Publication date	Aug 6, 2024
Grant date	Aug 6, 2024

Abstract

A display device and a vehicle are disclosed. The display device has a display area including a plurality of display sub areas and a plurality of transparent sub areas. The display device includes a display panel and an electrochromic layer disposed on one side of the display panel. The electrochromic layer includes at least one electrochromic device, the at least one electrochromic device corresponds to at least one of the transparent sub areas, and the at least one electrochromic device transitions between transparent and opaque states.

First claim

What is claimed is:

1. A display device, having a display area comprising a plurality of display sub areas and a plurality of transparent sub areas arranged in an array, wherein the display device comprises:
a display panel comprising a substrate and a plurality of light-emitting devices disposed on the substrate, wherein the light-emitting devices are disposed corresponding to the display sub areas; and
an electrochromic layer disposed on one side of the display panel;
wherein the electrochromic layer comprises a plurality of electrochromic devices corresponding to the transparent sub areas and arranged in a second array, and each of the electrochromic devices transitions between transparent and opaque states;
wherein the array comprises a plurality of array units, each of the array units comprises two of the display sub areas arranged along a first diagonal line and two of the transparent sub areas arranged along a second diagonal line intersecting the first diagonal line;
wherein each of the array units corresponds to two of the electrochromic devices arranged along the second diagonal line of the array unit and corresponding to the two of the transparent sub areas.

2. The display device according to claim 1 , further comprising a first organic layer covering the electrochromic devices, wherein the first organic layer comprises transmission units disposed corresponding to the display sub areas, and the transmission units are between adjacent electrochromic devices.

3. The display device according to claim 2 , wherein the first organic layer is an optical adhesive layer, the display device further comprises a protective coverplate, and the protective coverplate is disposed on the optical adhesive layer.

4. The display device according to claim 2 , wherein the electrochromic layer comprises a base substrate, a first electrode layer and a second electrode layer disposed on the base substrate, and an electrochromic material layer disposed between the first electrode layer and the second electrode layer, and the second electrode layer is disposed on one side of the first electrode layer away from the base substrate; and
the first electrode layer comprises first electrodes corresponding to the electrochromic devices by one to one, and the second electrode layer comprises second electrodes corresponding to the electrochromic devices by one to one.

5. The display device according to claim 4 , wherein the first electrode layer further comprises first connection electrodes connected between adjacent first electrodes, the second electrode layer further comprises second connection electrodes connected between adjacent second electrodes, the electrochromic material layer further comprises electrochromic material layer connection members connected between adjacent electrochromic devices, and the electrochromic material layer connection members are disposed between the first connection electrodes and the second connection electrodes.

6. The display device according to claim 4 , further comprising an encapsulation layer disposed on one side of the light-emitting devices away from the substrate, wherein the base substrate is shared with a layer structure of the display panel, and the base substrate is the encapsulation layer or the substrate.

7. The display device according to claim 2 , further comprising an encapsulation layer disposed on one side of the light-emitting devices away from the substrate;
wherein the electrochromic layer comprises a base substrate, a first electrode layer and a second electrode layer disposed on the base substrate, and an electrochromic material layer disposed between the first electrode layer and the second electrode layer, and the second electrode layer is disposed on one side of the first electrode layer away from the base substrate; and the base substrate is attached onto one side of the encapsulation layer away from the substrate, or the base substrate is attached onto one side of the substrate away from the encapsulation layer.

8. The display device according to claim 4 , wherein the first electrodes and the second electrodes are transparent electrodes.

9. The display device according to claim 8 , wherein the electrochromic layer further comprises an electrolyte layer and an ion storage layer disposed between the first electrodes and the second electrodes, the electrolyte layer is disposed adjacent to the electrochromic material layer, and the ion storage layer is disposed adjacent to the electrolyte layer.

10. The display device according to claim 1 , wherein the display panel further comprises an encapsulation layer and transistors and openings disposed between the substrate and the encapsulation layer, the light-emitting devices are disposed on the transistors, the encapsulation layer is disposed on the light-emitting devices, the openings are defined corresponding to the transparent sub areas and penetrate at least inorganic material film layers of the transistors, and a filling material in the openings comprises an organic material.

11. The display device according to claim 4 , wherein when a first voltage is applied between the first electrodes and the second electrodes, the electrochromic layer is in an opaque state; and
when a second voltage or no voltage is applied between the first electrodes and the second electrodes, the electrochromic layer is in a transparent state, and the second voltage is 0 V.

12. A vehicle, comprising the display device according to claim 1 .

Assignees

• Wuhan China Star Optoelectronics Semiconductor Display Tech Co Ltd

Inventors

• Shen Haiyan
• Luo Zhimeng
• Zhang Le
• Xianyu Wenxu
• Zhang Chunpeng

Classifications

• G02F2202/28

  Adhesive materials or arrangements · CPC title

• G02F2201/44

  Arrangements combining different electro-active layers, e.g. electrochromic, liquid crystal or electroluminescent layers · CPC title

• G02F1/155

  Electrodes · CPC title

• G02F1/137

  characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering · CPC title

• G02F1/13439

  characterised by their electrical, optical, physical properties; materials therefor; method of making · CPC title