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:
Dec. 29, 2009
Filed:
Oct. 06, 2006
Taiji Morimoto, Onomichi, JP;
Tsukasa Inoguchi, Kitakatsuragi-gun, JP;
Nobuhiro Nishiyama, Habikino, JP;
Yuhichi Memida, Kitakatsuragi-gun, JP;
Masanori Watanabe, Nishinomiya, JP;
Taiji Morimoto, Onomichi, JP;
Tsukasa Inoguchi, Kitakatsuragi-gun, JP;
Nobuhiro Nishiyama, Habikino, JP;
Yuhichi Memida, Kitakatsuragi-gun, JP;
Masanori Watanabe, Nishinomiya, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A direct-type backlight device for a non-self-luminous image display panel has a light-emitting area corresponding to a display area of the image display panel. The light-emitting area is arranged by combining a plurality of backlight substrates each of which is provided with (i) a color sensor for detecting an incident light intensity and (ii) red, green, and blue LEDs whose respective light intensities are controlled in accordance with a detection result obtained by the color sensor. This arrangement allows reduction of brightness unevenness entirely in the light-emitting area of the backlight device.