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. 14, 2014

Filed:

Jan. 14, 2013
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Katsumi Abe, Kawasaki, JP;

Masafumi Sano, Yokohama, JP;

Ryo Hayashi, Yokohama, JP;

Hideya Kumomi, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 3/30 (2006.01); G09G 5/10 (2006.01);
U.S. Cl.
CPC ...
Abstract

A new driving circuit is provided. The driving circuit according to the present invention comprises a first period for setting a current to be supplied to a display element, a second period for setting a gray-scale of the display element, and a third period for supplying a driving current to the display element. The present invention, in the driving circuit of the display element, is provided with a current source circuit for supplying a constant current to the display element and a control circuit for controlling the time to supply a constant current to the display element from the current source circuit.


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