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:
Nov. 04, 2014
Filed:
Aug. 28, 2009
Mikihiro Noma, Osaka, JP;
Shinichi Miyazaki, Osaka, JP;
Kengo Takahama, Osaka, JP;
Yoshiharu Yoshimoto, Osaka, JP;
Keisuke Iwasaki, Osaka, JP;
Mikihiro Noma, Osaka, JP;
Shinichi Miyazaki, Osaka, JP;
Kengo Takahama, Osaka, JP;
Yoshiharu Yoshimoto, Osaka, JP;
Keisuke Iwasaki, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka-shi, Osaka, JP;
Abstract
A liquid crystal display device of the present invention includes a liquid crystal panel () having an area sensor function of detecting the position of an input from an outside source by detecting an image on a panel surface. The liquid crystal panel () (position detecting section), provided with visible light sensors (A) each containing light sensor elements () that detect the intensity of received visible light and infrared light sensors (B) each containing light sensor elements () that detect the intensity of received infrared light, which detects an input position by the visible light sensors (A) and the infrared light sensors (B) separately detecting an image on the detector surface. The liquid crystal display device further includes a backlight (light-emitting section) for irradiating the liquid crystal panel () with light containing infrared light. This achieves an area sensor capable of accurate position detection in a wide range of environmental illuminances and a liquid crystal display device equipped with such an area sensor.