Invention Grant
- Patent Title: Liquid crystal display device
- Patent Title (中): 液晶显示装置
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Application No.: US14426494Application Date: 2013-08-22
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Publication No.: US09487700B2Publication Date: 2016-11-08
- Inventor: Masakazu Kaneoya , Kiyofumi Takeuchi , Seiji Funakura , Isao Oshiumi , Katsunori Shimada
- Applicant: DIC CORPORATION
- Applicant Address: JP Tokyo
- Assignee: DIC CORPORATION
- Current Assignee: DIC CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2012-199423 20120911
- International Application: PCT/JP2013/072425 WO 20130822
- International Announcement: WO2014/041985 WO 20140320
- Main IPC: C09K19/30
- IPC: C09K19/30 ; C09K19/20 ; C09K19/60 ; G02F1/1335 ; C09K19/34 ; C09K19/32 ; C09K19/56 ; G02F1/1334 ; C09K19/04

Abstract:
The present invention relates to a liquid crystal display device that uses a particular liquid crystal composition and a color filter that uses a particular pigment.The present invention provides a liquid crystal display device that prevents a decrease in voltage holding ratio (VHR) and an increase in ion density (ID) of a liquid crystal layer and resolves the problems of display defects, such as missing dots, alignment variation, and ghosting.Since the liquid crystal display device of the present invention prevents a decrease in voltage holding ratio (VHR) and an increase in ion density (ID) of a liquid crystal layer and resolves the problems of display defects, such as ghosting, it is particularly useful for active matrix drive VA-mode and PSVA-mode liquid crystal display devices and can be applied to liquid crystal display devices such as liquid crystal televisions, monitors, cellular phones, and smart phones.
Public/Granted literature
- US20150232757A1 LIQUID CRYSTAL DISPLAY DEVICE Public/Granted day:2015-08-20
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