Invention Grant
- Patent Title: Privacy film, display apparatus, and method of displaying image in display apparatus
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Application No.: US16763690Application Date: 2019-06-20
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Publication No.: US11599004B2Publication Date: 2023-03-07
- Inventor: Jinhong Zhang , Wencheng Luo , Wei Chen , Meilong Hu , Wenqi Quan , Xinyu Wang , Shikang Ge
- Applicant: Chongqing BOE Optoelectronics Technology Co., Ltd. , BOE TECHNOLOGY GROUP CO., LTD.
- Applicant Address: CN Chongqing; CN Beijing
- Assignee: Chongqing BOE Optoelectronics Technology Co., Ltd.,BOE TECHNOLOGY GROUP CO., LTD.
- Current Assignee: Chongqing BOE Optoelectronics Technology Co., Ltd.,BOE TECHNOLOGY GROUP CO., LTD.
- Current Assignee Address: CN Chongqing; CN Beijing
- Agency: Intellectual Valley Law, P.C.
- International Application: PCT/CN2019/092044 WO 20190620
- International Announcement: WO2020/252736 WO 20201224
- Main IPC: G02F1/1679
- IPC: G02F1/1679

Abstract:
A privacy film includes a first conductive layer; an emitting angle limiting spacer layer on the first conductive layer; a second conductive layer on a side of the emitting angle limiting spacer layer away from the first conductive layer; and a plurality of light diffuser particles in a space between the first conductive layer and the second conductive layer. The emitting angle limiting spacer layer includes a plurality of spacers defining a plurality of light emitting regions. The second conductive layer is spaced apart from the first conductive layer by a first distance. A maximum height of the plurality of spacers relative to a surface of the first conductive layer facing the second conductive layer is less than the first distance. The second conductive layer is spaced apart from a surface of a respective one of the plurality of spacers facing the second conductive layer by a second distance.
Public/Granted literature
- US20210405497A1 PRIVACY FILM, DISPLAY APPARATUS, AND METHOD OF DISPLAYING IMAGE IN DISPLAY APPARATUS Public/Granted day:2021-12-30
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