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:
Mar. 10, 2015
Filed:
Apr. 22, 2010
Kouji Noguchi, Kanagawa, JP;
Takayuki Nakanishi, Aichi, JP;
Koji Ishizaki, Aichi, JP;
Takeya Takeuchi, Aichi, JP;
Yasuyuki Teranishi, Aichi, JP;
Kouji Noguchi, Kanagawa, JP;
Takayuki Nakanishi, Aichi, JP;
Koji Ishizaki, Aichi, JP;
Takeya Takeuchi, Aichi, JP;
Yasuyuki Teranishi, Aichi, JP;
Japan Display West, Inc., Chita, JP;
Abstract
The display device with high detection accuracy includes: display pixel electrodes; a common electrode; a display function layer; a display control circuit performing image display control by applying a pixel voltage to each of the display pixel electrodes and applying a common drive voltage to the common electrode, the common drive voltage inverting in synchronization with a drive cycle of the image display control; a touch detection electrode cooperating with the common electrode to form a capacitor; and a touch detection circuit detecting an external proximity object, based on a detection signal obtained from the touch detection electrode in response to the common drive voltage applied to the common electrode. The touch detection circuit corrects the detection signal based on a gray scale of the image signal at the time of acquisition of the detection signal, and performs the detection operation.