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. 10, 2015
Filed:
Feb. 24, 2011
Applicant:
Toshinori Sugihara, Osaka, JP;
Inventor:
Toshinori Sugihara, Osaka, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1335 (2006.01); G02B 5/22 (2006.01);
U.S. Cl.
CPC ...
G02B 5/22 (2013.01); G02F 1/133603 (2013.01); G02F 1/133609 (2013.01); G02F 2001/133624 (2013.01);
Abstract
In a liquid crystal display device which uses a white LED as the light source, in order to avoid/suppress the reduction in the speed of response of the liquid crystal while increasing the color reproducibility and red chromaticity without the use of a special purpose color filter, a band cut filter which absorbs the wavelength component neighboring orange in light that is transmitted is provided between the liquid crystal display and the backlight unit.