Invention Grant
- Patent Title: Liquid crystal display device
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Application No.: US17283122Application Date: 2019-07-12
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Publication No.: US11275272B2Publication Date: 2022-03-15
- Inventor: Yuji Soda
- Applicant: KYOCERA Corporation
- Applicant Address: JP Kyoto
- Assignee: KYOCERA Corporation
- Current Assignee: KYOCERA Corporation
- Current Assignee Address: JP Kyoto
- Agency: Procopio Cory Hargreaves and Savitch LLP
- Priority: JPJP2018-200946 20181025
- International Application: PCT/JP2019/027791 WO 20190712
- International Announcement: WO2020/084845 WO 20200430
- Main IPC: G02F1/13363
- IPC: G02F1/13363 ; G02F1/1335

Abstract:
A liquid crystal display device includes a liquid crystal display panel including a light reflective portion, a first polarizing plate located on a display surface-facing side, a half-wavelength plate and a first quarter-wavelength plate disposed between the liquid crystal display panel and the first polarizing plate. A liquid crystal layer corresponding to the light reflective portion exhibits a retardation which is less than one-half of a retardation of the half-wavelength plate. The first quarter-wavelength plate has a slow axis which intersects a liquid-crystal molecular orientation axis at a time of no electric field application. The expression nx1>nz1>ny1 is satisfied, where nx1, ny1 and nz1 are the refractive indices at each orientation of the half-wavelength plate, and the expression nx2>nz2=ny2 is satisfied, where nx2, ny2 and nz2 are the refractive indices at each orientation of the first quarter-wavelength plate.
Public/Granted literature
- US20210389630A1 LIQUID CRYSTAL DISPLAY DEVICE Public/Granted day:2021-12-16
Information query
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