- Patent Title: Apparatus for photo-alignment process, method of fabricating a liquid crystal display substrate, and method of fabricating an apparatus for photo-alignment process
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Application No.: US16332318Application Date: 2018-04-24
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Publication No.: US11215854B2Publication Date: 2022-01-04
- Inventor: Chengpeng Yao , Lei Guo , Ke Dai
- Applicant: Hefei Xinsheng Optoelectronics Technology Co., Ltd. , BOE Technology Group Co., Ltd.
- Applicant Address: CN Anhui; CN Beijing
- Assignee: Hefei Xinsheng Optoelectronics Technology Co., Ltd.,BOE Technology Group Co., Ltd.
- Current Assignee: Hefei Xinsheng Optoelectronics Technology Co., Ltd.,BOE Technology Group Co., Ltd.
- Current Assignee Address: CN Anhui; CN Beijing
- Agency: Intellectual Valley Law, P.C.
- International Application: PCT/CN2018/084222 WO 20180424
- International Announcement: WO2019/204978 WO 20191031
- Main IPC: G02F1/13
- IPC: G02F1/13 ; G02F1/1337 ; C09K11/77 ; G01J1/04 ; G01J1/42 ; G02B5/20

Abstract:
The present application provides an apparatus for a photo-alignment process. The apparatus for a photo-alignment process includes a reflector, an up-conversion layer, and a polarizer optically coupled together. The reflector is configured to reflect an infrared light and provide a reflected infrared light to the up-conversion layer. The up-conversion layer is configured to convert the reflected infrared light to an ultraviolet light, and provide the ultraviolet light to the polarizer. The polarizer is configured to convert the ultraviolet light to a polarized ultraviolet light for the photo-alignment process.
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