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:
Dec. 27, 2016

Filed:

Nov. 08, 2013
Applicant:

Sharp Kabushiki Kaisha, Osaka-shi, Osaka, JP;

Inventors:

Kohji Saitoh, Osaka, JP;

Akihisa Iwamoto, Osaka, JP;

Tomohiko Nishimura, Osaka, JP;

Masaki Uehata, Osaka, JP;

Jun Nakata, Osaka, JP;

Masami Ozaki, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 5/00 (2006.01); G09G 5/18 (2006.01); G09G 3/20 (2006.01); G09G 3/36 (2006.01);
U.S. Cl.
CPC ...
G09G 5/18 (2013.01); G09G 3/20 (2013.01); G09G 3/36 (2013.01); G09G 3/3648 (2013.01); G09G 3/3696 (2013.01); G09G 2320/0247 (2013.01); G09G 2320/0285 (2013.01); G09G 2320/046 (2013.01);
Abstract

In a display device that can use a low frequency drive method, in the case of low frequency drive, in a data correction unit () of a display control circuit (), a pixel grayscale value is set such that the differential value between the potential difference between the pixel electrode and the common electrode when a voltage of positive polarity is applied and the potential difference between the pixel electrode and the common electrode when a voltage of negative polarity is applied becomes larger than during normal drive. With this, a correction amount (shift amount) is made larger during low frequency drive than during normal drive, whereby flickers and ghosting during low frequency drive are prevented.


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