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Patent Searching and Data


Title:
BACKLIGHT DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME
Document Type and Number:
Japanese Patent JP2013201031
Kind Code:
A
Abstract:

To provide a backlight device of edge-light type capable of improving a problem of color temperature unevenness even in small portable electronic equipment which has an extremely small amount of use of an element emitting blue light, and a liquid crystal display device using the same.

A backlight device has a light guide plate and a light source arranged at the end part of the light guide plate. The light source has an element emitting blue light, and the light guide plate contains phosphor fine particles which are excited by blue light and convert the wavelength of the blue light. Further, the liquid crystal display device includes the backlight device.


Inventors:
WADA YOSUKE
TAWARAYA SEIJI
HINO KAZUYUKI
Application Number:
JP2012068603A
Publication Date:
October 03, 2013
Filing Date:
March 26, 2012
Export Citation:
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Assignee:
DAINIPPON PRINTING CO LTD
International Classes:
F21S2/00; F21V8/00; G02F1/13357; F21Y101/02
Domestic Patent References:
JP2009016289A2009-01-22
JP2010225373A2010-10-07
JP3117790U2006-01-12
JP2006108076A2006-04-20
JP2001228812A2001-08-24
JP2003100126A2003-04-04
Attorney, Agent or Firm:
Junzo Yoneda
Masataka Ota
Hideo Sarada