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.

Patent No.:

US 7253812 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 07, 2007

Filed:

Feb. 06, 2004
Applicant:

Toru Sasaki, Osaka, JP;

Inventor:

Toru Sasaki, Osaka, JP;

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

A pulse having a width of 20H is inserted into STV in correspondence with a vertical blanking period (a period of 21 H), and the speed of CKV is increased to 12 times the original speed over the period of 21 H at the same time the pulse becomes High. A video signal in the vertical blanking period is at a black level, so that black is written into all organic EL elements in the period. An organic EL display continues to display black for a time period elapsed until a video is next written by the original line selection pulse. The video signal is corrected such that the shorter a video display time period provided to the EL element becomes, the higher the input video luminance of the EL element becomes in order to display black.


Find Patent Forward Citations

Sasaki, Toru. (2007). El display driver and el display (U.S. Patent No. 7253812). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7253812

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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