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. 16, 2014

Filed:

Mar. 12, 2013
Applicant:

Novatek Microelectronics Corp., Hsinchu, TW;

Inventors:

Ju-Lin Huang, Hsinchu County, TW;

Yueh-Hsiu Liu, Hsinchu, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B 1/00 (2006.01); H05B 37/02 (2006.01); G09G 3/20 (2006.01);
U.S. Cl.
CPC ...
H05B 37/02 (2013.01); G09G 2330/021 (2013.01); G09G 2310/0291 (2013.01); G09G 2330/045 (2013.01); G09G 3/20 (2013.01);
Abstract

A driving circuit of flat display including a charging circuit path, a discharging circuit path, and a detecting circuit is provided. The charging circuit path has first and second impedance states, wherein an impedance value of the first impedance state is smaller than that of the second impedance state. The discharging circuit path has third and fourth impedance states, wherein an impedance value of the third impedance state is smaller than that of the fourth impedance state. The detecting circuit detects whether the charging circuit path or the discharging circuit path is in an unstable first state or stable second state, controls the charging circuit path to the first impedance state or the discharging circuit path to the third impedance state in the first state, and controls the charging circuit path to the second impedance state or the discharging circuit path to the fourth impedance state in the second state.


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