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:
Jul. 28, 2020

Filed:

Jul. 01, 2016
Applicant:

Mitsubishi Electric Corporation, Tokyo, JP;

Inventors:

Isao Yoneoka, Tokyo, JP;

Shigenori Shibue, Tokyo, JP;

Yoshinori Asamura, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/32 (2016.01); H01L 33/00 (2010.01); G09G 3/20 (2006.01); G09G 5/02 (2006.01); G09G 3/3216 (2016.01);
U.S. Cl.
CPC ...
G09G 3/32 (2013.01); G09G 3/2014 (2013.01); G09G 5/02 (2013.01); H01L 33/00 (2013.01); G09G 3/2003 (2013.01); G09G 3/3216 (2013.01); G09G 2300/06 (2013.01); G09G 2310/021 (2013.01); G09G 2310/0272 (2013.01); G09G 2330/021 (2013.01); G09G 2330/028 (2013.01);
Abstract

An object is to provide a technique capable of suppressing a power consumption of an LED. An LED display device includes voltage supply parts, which can supply a multiple types of voltages being different from each other and a driver which drives an LED display using the multiple types of voltages. The driver switches a combination of an LED array in a lighting target group which is one of the plurality of groups being subject to lighting-up and the multiple types of voltages which should be supplied in parallel with the LED array, under a time sharing control, and turns on some LEDs, which should be turned on by the voltages which should be supplied to the LED array, in the plurality of LEDs included in the LED array in the lighting target group.


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