公开(公告)号：US11442299B2

公开(公告)日：2022-09-13

申请号：US17265546

申请日：2020-05-13

申请人： CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD. ,  BOE TECHNOLOGY GROUP CO., LTD.

发明人： Pan Yuan ,  Sijun Lei ,  Liang Gao ,  Xianyong Gao ,  Yansheng Sun ,  Yunsong Li ,  Zhicai Xu ,  Yong Long ,  Ying Zhang ,  Dengqian Li ,  Guojian Zhang ,  Fanjian Zeng ,  Shanbin Chen ,  Sen Tan ,  Hebing Ma ,  Chaojie Zhang ,  Song Liu ,  Xinzhi Shao ,  Yong Deng ,  Xiangchao Chen ,  Genchuan Yan ,  Ying Yang ,  Xinyu Wang

IPC分类号： G02F1/1334 ,  G02F1/13 ,  G02F1/1333 ,  G02F1/13357 ,  G02F1/1339 ,  G02F1/1343 ,  G02F1/1347

摘要： Disclosed are a display module, a display device and a viewing-angle switching method. The display module includes a backlight module, a display panel, a lower polarizer sheet, a viewing-angle switching element and a transparent cover plate; the viewing-angle switching element and the transparent cover plate are arranged between the display panel and the lower polarizer sheet, and the transparent cover plate is arranged on a side of the viewing-angle switching element that is close to the lower polarizer sheet; the backlight module is configured to supply light that meets a preset condition, the viewing-angle switching element is configured to switch viewing-angle modes of the display module; the viewing-angle modes include; a first viewing-angle mode and a second viewing-angle mode; and a viewing-angle range of the first viewing-angle mode is smaller than a viewing angle range of the second viewing-angle mode.