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. 26, 2006

Filed:

Mar. 15, 2002
Applicants:

Masashi Okabe, Tokyo, JP;

Mitsuo Inoue, Tokyo, JP;

Shuji Iwata, Tokyo, JP;

Takashi Yamamoto, Tokyo, JP;

Inventors:

Masashi Okabe, Tokyo, JP;

Mitsuo Inoue, Tokyo, JP;

Shuji Iwata, Tokyo, JP;

Takashi Yamamoto, Tokyo, JP;

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

In a driving circuit of a spontaneous light emitting display device driven as an active matrix, a noise current is prevented from flowing in a light emitting element when compensating for a threshold voltage of a transistor for controlling current flowing to the emitting element, enhancing precision in luminance. A switching element for short-circuiting electrodes of the spontaneous light emitting element for a period in which the noise current flows in the light emitting element bypasses the noise current.


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