公开(公告)号：US20230273494A1

公开(公告)日：2023-08-31

申请号：US18005638

申请日：2021-07-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yisong He ,  Weisi Li ,  Feng Xu ,  Guoping Wu ,  Bin Xie ,  Jianguo Xu

IPC: G02F1/163 ,  G06F1/16 ,  G02F1/153 ,  G02F1/1524

CPC classification number: G02F1/163 ,  G06F1/1626 ,  G02F1/1533 ,  G02F1/1524 ,  G02F2001/1536 ,  G02F2202/28 ,  G02F1/13338

Abstract: An electronic device includes: a battery, a mainboard, and a housing. The battery is connected to the mainboard, the mainboard is provided with a first controller, the battery and the mainboard are installed in a cavity of the housing, and the housing includes a rear cover. The rear cover includes an electrochromic layer, the electrochromic layer is connected to the mainboard, the first controller is configured to control whether to power on the electrochromic layer, and a color displayed on the electrochromic layer when the electrochromic layer is powered on is different from a color displayed when the electrochromic layer is not powered on. The rear cover can change, by controlling a power-on and power-off status of the electrochromic layer, a color displayed on the electrochromic layer, and further change a color displayed on the rear cover, without changing a decorative film.