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:
Oct. 20, 2020

Filed:

Mar. 25, 2019
Applicant:

Japan Display Inc., Tokyo, JP;

Inventors:

Hayato Kurasawa, Tokyo, JP;

Hiroshi Mizuhashi, Tokyo, JP;

Koji Noguchi, Tokyo, JP;

Takafumi Suzuki, Tokyo, JP;

Assignee:

Japan Display Inc., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/041 (2006.01); G02F 1/1333 (2006.01); G02F 1/1335 (2006.01); G02F 1/1339 (2006.01); G02F 1/1343 (2006.01); G02F 1/1362 (2006.01); G02F 1/1368 (2006.01); G02F 1/137 (2006.01); G06F 3/044 (2006.01); G09G 3/36 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0416 (2013.01); G02F 1/137 (2013.01); G02F 1/1368 (2013.01); G02F 1/13338 (2013.01); G02F 1/13394 (2013.01); G02F 1/133512 (2013.01); G02F 1/134336 (2013.01); G02F 1/136286 (2013.01); G06F 3/044 (2013.01); G06F 3/0412 (2013.01); G09G 3/3677 (2013.01); G09G 3/3688 (2013.01); G02F 1/133345 (2013.01); G02F 2201/121 (2013.01); G02F 2201/123 (2013.01); G06F 2203/04107 (2013.01);
Abstract

According to one embodiment, a display device includes a plurality of gate lines, a plurality of data lines intersecting with the gate lines, a plurality of pixel electrodes provided in areas defined by the gate lines and the data lines, and a sensor drive controller which includes a plurality of common electrodes facing the pixel electrodes and detects a touch by using the common electrodes. The sensor drive controller selects at least one of the common electrodes as a sensor electrode, detects a touch by using the sensor electrode, and inputs, to the other common electrodes, a guard signal for reducing generation of capacitance between the other common electrodes and the sensor electrode.


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