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:
Sep. 08, 2020

Filed:

Jul. 19, 2018
Applicant:

Japan Display Inc., Tokyo, JP;

Inventors:

Kazuhiko Sako, Tokyo, JP;

Daichi Suzuki, Tokyo, JP;

Naoyuki Takasaki, Tokyo, JP;

Tsutomu Harada, Tokyo, JP;

Kojiro Ikeda, Tokyo, JP;

Assignee:

Japan Display Inc., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/34 (2006.01); G09G 3/20 (2006.01); G09G 3/36 (2006.01);
U.S. Cl.
CPC ...
G09G 3/3426 (2013.01); G09G 3/2007 (2013.01); G09G 3/3648 (2013.01); G09G 2300/023 (2013.01); G09G 2300/0426 (2013.01);
Abstract

According to an aspect, a display device includes a display panel comprising a plurality of pixels, a light guide plate, a light source configured to emit light from a lateral side of the light guide plate, a dimming panel, and a controller. The dimming panel comprises a plurality of dimming areas arranged in an emission direction of the light from the light source. The dimming areas are capable of individually changing transmittance of the light according to intensities of light required to display an image using the display panel. When adjacent two of the dimming areas differ in light transmittance from each other, the controller increases output gradation values of target pixels, the target pixels being located in a predetermined area extending from a boundary between the two dimming areas in one of the two dimming areas that has lower light transmittance.


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