Invention Grant
- Patent Title: Liquid crystal display panel and liquid crystal display device
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Application No.: US16486726Application Date: 2018-02-14
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Publication No.: US10678087B2Publication Date: 2020-06-09
- Inventor: Akira Sakai , Yuichi Kawahira , Koji Murata , Masahiro Hasegawa , Takako Koide , Kozo Nakamura , Kiyoshi Minoura
- Applicant: SHARP KABUSHIKI KAISHA
- Applicant Address: JP Sakai, Osaka
- Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee Address: JP Sakai, Osaka
- Agency: ScienBiziP, P.C.
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@5770bd1a
- International Application: PCT/JP2018/004953 WO 20180214
- International Announcement: WO2018/155262 WO 20180830
- Main IPC: G02F1/1335
- IPC: G02F1/1335 ; G02F1/13363 ; G02F1/1339

Abstract:
A liquid crystal display panel includes a first λ/4 retardation layer, a first substrate, a color filter layer, a liquid crystal layer containing horizontally aligned liquid crystals, and a second λ/4 retardation layer that is formed from a different material from the first λ/4 retardation layer between the first substrate and the color filter layer or between the color filter layer and the liquid crystal layer. The second λ/4 retardation layer has a smaller thickness in a region overlapping the blue color filter than in a region overlapping the green color filter. The first λ/4 retardation layer provides a retardation Rout(λ) to light having a wavelength of λ nm. The second λ/4 retardation layer provides a retardation Rin(λ). The retardation Rout(λ) and the retardation Rin(λ) satisfy the following formula (1) in the region overlapping the blue color filter. −1.0 nm
Public/Granted literature
- US20190384101A1 LIQUID CRYSTAL DISPLAY PANEL AND LIQUID CRYSTAL DISPLAY DEVICE Public/Granted day:2019-12-19
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