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:
Apr. 17, 2018

Filed:

Mar. 07, 2017
Applicant:

Japan Display Inc., Tokyo, JP;

Inventors:

Koji Ishizaki, Aichi, JP;

Kouji Noguchi, Kanagawa, JP;

Takayuki Nakanishi, Aichi, JP;

Yasuyuki Teranishi, Aichi, JP;

Takeya Takeuchi, Aichi, JP;

Assignee:

Japan Display Inc., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/041 (2006.01); G09G 3/36 (2006.01); G06F 3/044 (2006.01); G06F 3/045 (2006.01); G06K 9/00 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0416 (2013.01); G06F 3/044 (2013.01); G06F 3/045 (2013.01); G06F 3/0412 (2013.01); G06K 9/0051 (2013.01); G09G 3/36 (2013.01); G09G 3/3607 (2013.01); G09G 3/3614 (2013.01); G09G 3/3655 (2013.01); G09G 3/3659 (2013.01); G09G 3/3696 (2013.01); G06F 2203/04101 (2013.01); G06F 2203/04112 (2013.01); G09G 2310/0248 (2013.01); G09G 2310/0251 (2013.01); G09G 2310/0262 (2013.01); G09G 2320/0204 (2013.01); G09G 2320/0209 (2013.01); G09G 2320/029 (2013.01); G09G 2320/0219 (2013.01);
Abstract

A display device includes: a display functional layer that can change display for each pixel in accordance with an application voltage; a plurality of driving electrodes separately disposed in one direction; a plurality of pixel signal lines to which pixel signals used for applying the application voltage to the display functional layer in accordance with an electric potential difference from the display reference electric potential are applied; a plurality of detection electrodes that are separately disposed in a direction other than the one direction, are coupled with the driving electrodes as electrostatic capacitance, generate detection electric potentials in response to the detection driving signal, and change the detection electric potential in accordance with approach of a detection target object; and a pixel signal control unit that controls the pixel signals so as to include pixel signals having different polarities during the display period.


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