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:
Jul. 01, 2014
Filed:
Jan. 28, 2011
Ikuo Hiyama, Hitachinaka, JP;
Kentaro Ojima, Chiba, JP;
Masahiro Ishii, Mobara, JP;
Shisei Katou, Mobara, JP;
Yoshiro Mikami, Hitachiota, JP;
Ikuo Hiyama, Hitachinaka, JP;
Kentaro Ojima, Chiba, JP;
Masahiro Ishii, Mobara, JP;
Shisei Katou, Mobara, JP;
Yoshiro Mikami, Hitachiota, JP;
Japan Display Inc., Tokyo, JP;
Abstract
In a liquid crystal display device, the reduction of power consumption is realized by reddening a backlight while maintaining a white balance. An aperture ratio of a red subpixel and an aperture ratio of a blue subpixel are set such that, in a state where an aperture ratio of a green subpixel in each pixel of a liquid crystal panel is fixed to a desired value, white brightness efficiency takes a maximum value which is set based on a balance between light emission efficiency which is increased corresponding to lowering of a color temperature of the backlight and transmissivity of the pixel which is decreased corresponding to the increase of the aperture ratio of the blue subpixel.