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. 03, 2013

Filed:

Oct. 07, 2009
Applicants:

Zhilong Peng, Beijing, CN;

Xiangfei He, Beijing, CN;

Chunbae Park, Beijing, CN;

Wei Wang, Beijing, CN;

Inventors:

Zhilong Peng, Beijing, CN;

Xiangfei He, Beijing, CN;

Chunbae Park, Beijing, CN;

Wei Wang, Beijing, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/26 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention discloses a switch control unit, a test apparatus and method for a liquid crystal cell. The switch control unit controls a signal input to the liquid crystal display driver and controls the output of the signal from the liquid crystal display driver accordingly, and includes a control signal generator and a switch module. The test apparatus for the liquid crystal cell comprises: a switch control unit connected with a gate driver, for controlling ON and OFF of a signal input to the gate driver and controlling ON and OFF of a gate scan signal accordingly. The test method for the liquid crystal cell comprises: inputting a test signal; controlling ON and OFF of a gate scan signal by controlling ON and OFF of a signal input to a gate driver so as to determine the badness positions on a screen.


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