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:
Sep. 15, 2009

Filed:

Jan. 24, 2006
Applicant:

Wataru Sasaki, Asaka, JP;

Inventor:

Wataru Sasaki, Asaka, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 2/47 (2006.01); B41J 2/385 (2006.01); B41J 2/435 (2006.01);
U.S. Cl.
CPC ...
Abstract

After a voltage of opposite polarity is applied between electrodes of liquid crystal shutters for each of an odd number of colored lights emitted cyclically, a dummy operation of the liquid crystals is performed during a wait period until a next write command pulse is received. During the dummy operation, LEDs which emit the colored lights are kept off. Delays in response of the liquid crystals are reduced by driving the liquid crystals continuously, and molecular arrangement in the liquid crystals is kept constant whenever possible by performing an even number of shutter operations and thereby driving the liquid crystals for the same color with a voltage of the same polarity.


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