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.

Date of Patent:
Nov. 04, 2014

Filed:

Mar. 27, 2013
Applicant:

Japan Display East Inc., Mobara, JP;

Inventors:

Koji Nagata, Hachioji, JP;

Koji Doi, Chiba, JP;

Assignee:

Japan Display Inc., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/36 (2006.01); G06F 3/041 (2006.01); G06F 3/044 (2006.01);
U.S. Cl.
CPC ...
G06F 3/041 (2013.01); G06F 3/0412 (2013.01); G06F 3/044 (2013.01);
Abstract

Provided is a display device that includes a display panel; and a touch panel integrated in the display panel, wherein the touch panel has a plurality of scanning electrodes, a plurality of detection electrodes that intersects with the plurality of scanning electrodes, drive signal supply unit for inputting a drive signal to each of the scanning electrodes, detection unit for acquiring a detection signal from each of the detection electrodes, touch position detection unit for detecting a touch position of an detection object based on the detection signal when the drive signal is sequentially input to each of the scanning electrodes from the drive signal supply unit, and approach detection unit for detecting that the detection object approaches the touch panel based on the detection signal when a scanning voltage is collectively input to all of the scanning electrodes from the drive signal supply unit.


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