Invention Grant
- Patent Title: Depolarizing plate, optical device and liquid-crystal display device including same, and depolarizing plate production method
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Application No.: US15185305Application Date: 2016-06-17
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Publication No.: US11002993B2Publication Date: 2021-05-11
- Inventor: Akio Takada , Eiji Takahashi , Nobuyuki Koike , Koji Sasaki , Naoki Hanashima
- Applicant: Dexerials Corporation
- Applicant Address: JP Tokyo
- Assignee: Dexerials Corporation
- Current Assignee: Dexerials Corporation
- Current Assignee Address: JP Tokyo
- Agency: Kenja IP Law PC
- Priority: JPJP2015-123101 20150618
- Main IPC: G02F1/01
- IPC: G02F1/01 ; G02B5/30 ; G02B1/14 ; G02F1/1335
Abstract:
Provided is a depolarizing plate having a superior degree of depolarization to conventional depolarizing plates. The depolarizing plate includes a light-transmitting substrate having a surface layer portion in which a fine pattern is provided that includes a plurality of curved lines randomly disposed at a pitch of no greater than a wavelength of light, and that exhibits structural birefringence.
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