Invention Grant
- Patent Title: Liquid crystal display device and color filter for liquid crystal display device
- Patent Title (中): 液晶显示装置及液晶显示装置用滤色片
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Application No.: US12659188Application Date: 2010-02-26
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Publication No.: US08130342B2Publication Date: 2012-03-06
- Inventor: Yoshiko Ishimaru , Hidesato Hagiwara , Yoshinori Murazaki , Suguru Takashima , Masafumi Harada
- Applicant: Yoshiko Ishimaru , Hidesato Hagiwara , Yoshinori Murazaki , Suguru Takashima , Masafumi Harada
- Applicant Address: JP Tokyo JP Tokushima
- Assignee: Toppan Printing Co., Ltd.,Nichia Corporation
- Current Assignee: Toppan Printing Co., Ltd.,Nichia Corporation
- Current Assignee Address: JP Tokyo JP Tokushima
- Priority: JP2007-224445 20070830
- Main IPC: G02F1/1335
- IPC: G02F1/1335

Abstract:
Disclosed a liquid crystal display device including a backlight device including a white-emitting LED device which emits a white light arising from a color mixture created through a combination of a blue-emitting LED, a red-emitting phosphor and a green-emitting phosphor, and a color filter equipping color pixels exhibiting plural colors including a red pixel and formed on a transparent substrate, wherein the white-emitting LED device is enabled to exhibit an emission spectrum having a first peak wavelength falling within a range of 440-470 nm, a second peak wavelength falling within a range of 510-550 nm and a third peak wavelength falling within a range of 630-670 nm, and a red display chromaticity of the liquid crystal display device is confined within a region bounded by lines connecting four points (0.620, 0.280), (0.620, 0.300), (0.680, 0.315) and (0.680, 0.280) based on an xy chromaticity coordinate system.
Public/Granted literature
- US20100296024A1 Liquid crystal display device and color filter for liquid crystal display device Public/Granted day:2010-11-25
Information query
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