公开(公告)号：US20230152614A1

公开(公告)日：2023-05-18

申请号：US17281591

申请日：2021-03-11

Applicant: Wuhan China Star Optoelectronics Technology Co., Ltd.

Inventor： Rui HE ,  Wei CHENG ,  Changchih HUANG ,  Guanghui LIU

IPC: G02F1/13 ,  G02F1/1334 ,  G02F1/1343 ,  G02F1/137

CPC classification number: G02F1/1323 ,  G02F1/1334 ,  G02F1/134345 ,  G02F1/137 ,  G02F2203/48 ,  G02F2202/04

Abstract: A display device provided includes a display panel, a first backlight module, a second backlight module, a light sensor, and a viewing angle adjusting component. The first backlight module includes an optical element, and the viewing angle adjusting component is disposed corresponding to a display sensing area. When the optical element is in a fog state, the viewing angle adjusting component reduces an exit angle of backlight. When the optical element is in a transparent state, external light enters the light sensor through the viewing angle adjusting component and the first backlight module, which improves uniformity of backlight viewing angle.