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:
Aug. 05, 2014
Filed:
Jan. 26, 2011
Kohji Yabuta, Osaka, JP;
Mikihiro Noma, Osaka, JP;
Kohji Yabuta, Osaka, JP;
Mikihiro Noma, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
Disclosed is a liquid crystal display device () that is provided with a function of identifying the position of a subject to be detected (finger) in an image display region () of a liquid crystal panel () by emitting light to the image display region () and by detecting light reflected by the subject to be detected (finger). The liquid crystal display device is provided with a backlight () and a front light-emitting unit (), which radiate light to the image display region (). The backlight () is disposed on the side of the liquid crystal panel () opposite to the image display surface (), and emits light to the image display region () from the rear side of the liquid crystal panel (). The front light-emitting unit () is disposed outside of the image display region (), and emits light to the image display region () without having the liquid crystal panel () therebetween. With such a configuration, even when the subject to be detected and the display panel are apart from each other, the position of the subject to be detected can be accurately identified.