The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 03, 2015
Filed:
Feb. 09, 2011
Yoshiki Takata, Osaka, JP;
Yoshiki Takata, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
It is an object of the present invention to maintain high brightness of output light while ensuring sufficient color reproducibility in a liquid crystal display device. A liquid crystal display deviceor' according to the present invention includes a backlight deviceorand a liquid crystal panel. The backlight unitorincludes LEDsoras light sources. The backlight unitorirradiates the liquid crystal panelwith light. The liquid crystal panelincludes a pair of substratesand, and a liquid crystal layer. The CF substrateof the liquid crystal panelincludes a color filter. The color filterincludes a plurality of the respective color sections R, G, B, and Y that exhibit the colors of red, green, blue, and yellow, respectively. The color filteris configured such that the chromaticity of a blue color of output light obtained by passing light from the LEDsorthrough the color sections R, G, B, and Y in the color filterlies outside a common region Aof a NTSC chromaticity region Aaccording to a NTSC standard and a EBU chromaticity region Aaccording to a EBU standard in both a CIE1931 chromaticity diagram and a CIE1976 chromaticity diagram.