US 12,468,204 B2
Display panel, fabrication method of display panel, and display device
Mei Chen, Guangdong (CN); Dongze Li, Guangdong (CN); and Lixuan Chen, Guangdong (CN)
Assigned to Huizhou China Star Optoelectronics Display Co. Ltd., Huizhou (CN); and TCL China Star Optoelectronics Technology Co., Ltd., Shenzhen (CN)
Appl. No. 17/623,915
Filed by Huizhou China Star Optoelectronics Display Co., Ltd., Guangdong (CN); and TCL China Star Optoelectronics Technology Co., Ltd., Guangdong (CN)
PCT Filed Dec. 24, 2021, PCT No. PCT/CN2021/141308
§ 371(c)(1), (2) Date Dec. 30, 2021,
PCT Pub. No. WO2023/103107, PCT Pub. Date Jun. 15, 2023.
Claims priority of application No. 202111503953.6 (CN), filed on Dec. 10, 2021.
Prior Publication US 2024/0427209 A1, Dec. 26, 2024
Int. Cl. G02F 1/155 (2006.01); G02F 1/1337 (2006.01); G02F 1/1362 (2006.01); G02F 1/1523 (2019.01); G02F 1/163 (2006.01)
CPC G02F 1/155 (2013.01) [G02F 1/133792 (2021.01); G02F 1/136245 (2021.01); G02F 1/1525 (2013.01); G02F 1/163 (2013.01); G02F 2001/1635 (2013.01); G02F 2201/44 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display panel, comprising:
a transparent display panel;
a dimming panel, comprising a plurality of pixels for emitting light, arranged on a side of the transparent display panel, wherein the dimming panel comprises an electrochromic layer, an electrolyte layer, and an ion storage layer stacked in sequence, the electrochromic layer and the ion storage layer each have an etched porous structure to enlarge a contact area between the electrolyte layer with the electrochromic layer and the ion storage layer, and the dimming panel further comprises:
a first transparent electrode layer arranged on a side of the electrochromic layer away from the electrolyte layer, and the first transparent electrode layer is patterned and arranged corresponding to each of the pixels.
 
11. A fabrication method of a display panel, which comprises:
providing a transparent substrate, fabricating a first transparent electrode layer on the transparent substrate, and patterning the first transparent electrode layer at a place where corresponding to a pixel for emitting light;
fabricating an electrochromic layer on the first transparent electrode layer, and processing the electrochromic layer with a hole-forming etching to form a porous structure;
fabricating an electrolyte layer on the electrochromic layer;
fabricating an ion storage layer on the electrolyte layer, and etching the ion storage layer to form a porous structure; and
fabricating a transparent display panel on the ion storage layer.
 
15. A display device, comprising a display panel, wherein the display panel comprises:
a transparent display panel;
a dimming panel, comprising a plurality of pixels for emitting light, arranged on a side of the transparent display panel, wherein the dimming panel comprises an electrochromic layer, an electrolyte layer, and an ion storage layer stacked in sequence, the electrochromic layer and the ion storage layer each have an etched porous structure to enlarge a contact area between the electrolyte layer with the electrochromic layer and the ion storage layer, and the dimming panel further comprises:
a first transparent electrode layer arranged on a side of the electrochromic layer away from the electrolyte layer, and the first transparent electrode layer is patterned and arranged corresponding to each of the pixels.