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:
Jun. 30, 2020

Filed:

Jun. 19, 2018
Applicant:

Japan Display Inc., Minato-ku, JP;

Inventors:

Kazunari Tomizawa, Minato-ku, JP;

Kazuhiko Sako, Minato-ku, JP;

Yasuo Saruhashi, Minato-ku, JP;

Assignee:

Japan Display Inc., Minato-ku, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 3/36 (2006.01); G09G 5/02 (2006.01); G02F 1/13357 (2006.01); H04N 9/67 (2006.01); G09G 3/34 (2006.01);
U.S. Cl.
CPC ...
G09G 3/3607 (2013.01); G02F 1/133603 (2013.01); G09G 3/3413 (2013.01); G09G 3/3426 (2013.01); G09G 3/3648 (2013.01); G09G 5/02 (2013.01); G09G 5/026 (2013.01); H04N 9/67 (2013.01); G09G 2300/023 (2013.01); G09G 2300/0452 (2013.01); G09G 2310/0235 (2013.01); G09G 2320/0646 (2013.01); G09G 2330/021 (2013.01); G09G 2340/0457 (2013.01);
Abstract

A signal processing device includes an elongation coefficient calculation circuit receiving a first image signal including a red pixel value, a green pixel value and a blue pixel value, and determining an elongation coefficient value with respect to one frame based on the first image signal, and an image signal processing circuit receiving the first image signal and the elongation coefficient value. The image signal processing circuit includes an image signal conversion circuit converting the first image signal into a second image signal including a red pixel value, a green pixel value, a blue pixel value and a white pixel value, an elongation processing circuit elongating the second image signal based on the elongation coefficient value, an image signal analysis circuit analyzing the elongated second image signal, and an adjustment circuit adjusting the elongated second image signal.


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