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. 19, 2008
Filed:
May. 05, 2006
Minoru Nakano, Kanagawa, JP;
Kunihito Saiki, Tokyo, JP;
Minoru Nakano, Kanagawa, JP;
Kunihito Saiki, Tokyo, JP;
Sony Corporation, , JP;
Abstract
A liquid-crystal display apparatus includes a liquid-crystal panel () having a color filter (), a W light-emitting diode () for irradiating white light to the liquid-crystal panel (), RGB light-emitting diodes () for irradiating lights of more than two colors containing white to the liquid-crystal panel (), a luminance sensor () for detecting ambient illuminance of the liquid-crystal panel () to output a detected signal and a control unit () for switching the W light-emitting diode () and the RGB light-emitting diodes () based on the detected signal from the luminance sensor (). In a related-art liquid-crystal display apparatus, since lights of red (R), green (G) and blue (B) are emitted with a time lag and superimposed upon each other so that a clear color may not be obtained in each pixel, thus resulting in insufficient color reproducing capability. According to the present invention, these defects encountered with the related art can be obviated.