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. 27, 2011
Filed:
Oct. 16, 2006
Applicants:
Takehiro Misonou, Kanagawa, JP;
Yuichi Ohyama, Kanagawa, JP;
Inventors:
Takehiro Misonou, Kanagawa, JP;
Yuichi Ohyama, Kanagawa, JP;
Assignee:
Sony Corporation, , JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 3/36 (2006.01);
U.S. Cl.
CPC ...
Abstract
A backlight for illuminating the back of a display section includes a plurality of light sources disposed in positions corresponding to a display area of the display section; a diffusion member configured to transmit light from the light sources to the display section; a photo-sensor; a light guiding member configured to introduce the light from the light sources to the photo-sensor for detection; and an arithmetic operation processing section configured to calculate the luminance or chromaticity of each of the light sources from the luminance or chromaticity detected by the photo-sensor.