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:
Jun. 24, 2014
Filed:
Nov. 03, 2007
Masayoshi Kinoshita, Hachioji, JP;
Hiroshi Kageyama, Hachioji, JP;
Masayoshi Kinoshita, Hachioji, JP;
Hiroshi Kageyama, Hachioji, JP;
Hitachi Displays Co., Ltd., Mobara-Shi, Chiba-Ken, JP;
Panasonic Liquid Crystal Display Co., Ltd., Himeji-Shi, Hyogo-Ken, JP;
Abstract
An image display unit with screen input function is provided, by which it is possible to input image data directly to a screen without decreasing numerical aperture of pixel. The image display unit comprises a light detecting TFTreceiving a light entering from a screen of a liquid crystal display panel, said light detecting TFTis connected in series to a switching TFT, which does not receive a light entering from the screen of the liquid crystal display panel. To a source electrode of the light detecting TFT, a storage capacitor Cst and a pixel electrode of a liquid crystal element are connected. The liquid crystal element is represented by a capacitor C. A sensor control lineis connected to the gate electrode of the light detecting TFT, and a gate lineis connected to the gate electrode of the switching TFT. A data lineis connected to the drain electrode of the switching TFT, and a storage lineis connected to one end of a storage capacitor Cst. An image signal is sent to a pixel electrode (ITO) of the liquid crystal element (C). The light detecting TFTtransmits photoelectric current Igenerated by sensing the light to a sensor signal processing circuit (see FIG.) via the data line