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. 29, 2015

Filed:

Oct. 22, 2010
Applicants:

Hiroyuki Kasuga, Tokyo, JP;

Takuya Nakazawa, Tokyo, JP;

Inventors:

Hiroyuki Kasuga, Tokyo, JP;

Takuya Nakazawa, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/00 (2006.01); H05B 37/02 (2006.01); G09G 3/36 (2006.01); G02F 1/133 (2006.01);
U.S. Cl.
CPC ...
G09G 3/3696 (2013.01); G02F 1/133 (2013.01); G09G 3/36 (2013.01); G09G 2330/021 (2013.01); G09G 2330/028 (2013.01);
Abstract

A liquid crystal monitor includes a first voltage conversion circuit (e.g. a DC/DC converter), which converts an external DC voltage into a first internal DC voltage supplied to CPU circuitry, and a second voltage conversion circuit, which converts the external DC voltage into a second internal DC voltage for driving a backlight of a liquid crystal panel. The external DC voltage is set proximate to a center value between the first internal DC voltage and the second internal DC voltage. This allows the liquid crystal monitor to be equipped with a battery unit producing a single external DC voltage, thus reducing weight compared to a conventional liquid crystal monitor.


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