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:
Jan. 02, 2024

Filed:

Oct. 19, 2020
Applicant:

Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;

Inventor:

Takeichi Shinya, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/3225 (2016.01);
U.S. Cl.
CPC ...
G09G 3/3225 (2013.01); G09G 2300/02 (2013.01); G09G 2320/0626 (2013.01); G09G 2360/144 (2013.01);
Abstract

An image display device includes a display panel, a space portion, an illuminator, a controller, and an illuminance sensor. The display panel is switchable between an image display mode in which an image is displayed and a transmissive mode in which the display panel is in a transmissive state where a back side of the display panel is visible in a front view. The space portion and the illuminator are provided behind the display panel. The illuminator emits illumination light to the space portion. The controller controls the illuminator. The illuminance sensor detects an ambient illuminance of the image display device. The controller performs illumination control for causing the illuminator to emit illumination light with a brightness that is in accordance with a result of detection by the illuminance sensor when the display panel is operating in the transmissive mode.


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