US 11,852,943 B2
Electrochromic device and preparation method therefor, and electronic equipment
Xin Yang, Guangdong (CN)
Assigned to GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Dongguan (CN)
Filed by GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Guangdong (CN)
Filed on Mar. 23, 2021, as Appl. No. 17/210,084.
Application 17/210,084 is a continuation of application No. PCT/CN2019/096382, filed on Jul. 17, 2019.
Claims priority of application No. 201811159209.7 (CN), filed on Sep. 30, 2018.
Prior Publication US 2021/0208466 A1, Jul. 8, 2021
Int. Cl. G02F 1/1523 (2019.01); G02F 1/1506 (2019.01); G02F 1/155 (2006.01)
CPC G02F 1/1525 (2013.01) [G02F 1/155 (2013.01); G02F 1/1508 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electrochromic device, comprising:
a first substrate and a second substrate provided opposite to each other;
a first transparent conductive layer and a second conductive layer provided between the first substrate and the second substrate;
an electrochromic layer provided between the first transparent conductive layer and the second conductive layer;
a bottom printed layer provided on a surface of the second substrate away from the second conductive layer; and
a pattern layer;
wherein an orthographic projection of the pattern layer on the first substrate covers at most a part of a surface of the first substrate, and a color of the electrochromic device varies as a voltage between the first transparent conductive layer and the second conductive layer changes.