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. 18, 2007

Filed:

Nov. 01, 2005
Applicants:

Takashi Miyamoto, Hachioji, JP;

Kayoko Tajima, Tokyo, JP;

Inventors:

Takashi Miyamoto, Hachioji, JP;

Kayoko Tajima, Tokyo, JP;

Assignee:

Agilent Technologies, Inc., Santa Clara, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method for measuring the holding properties of a TFT array of an active matrix display panel comprising multiple pixel circuits with holding capacitors, this measuring method being characterized in that the multiple pixel circuits comprise at least a first pixel circuit and a second pixel circuit, and the method comprises a step for charging to the holding capacitor of the first pixel circuit, a step for then charging to the holding capacitor of the second pixel circuit, a step for performing an effect-eliminating procedure due to floating capacity, and a step for measuring the charge of the holding capacitor of the first and second pixel circuits wherein a predetermined holding time after charging has elapsed.


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