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. 12, 2017

Filed:

Apr. 22, 2016
Applicant:

Solomon Systech Limited, Hong Kong, HK;

Inventors:

Jun Chen, Hong Kong, HK;

Yiu Sang Lei, Hong Kong, HK;

Wei Jun Koh, Singapore, SG;

Cheung Fai Lee, Hong Kong, HK;

Assignee:

Solomon Systech Limited, Hong Kong, HK;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/38 (2006.01); G09G 3/20 (2006.01); G09G 5/02 (2006.01); G06T 7/00 (2017.01);
U.S. Cl.
CPC ...
H03F 3/38 (2013.01); G06T 7/00 (2013.01); G09G 3/2085 (2013.01); G09G 3/2092 (2013.01); G09G 5/02 (2013.01); G09G 2310/0254 (2013.01); G09G 2310/0291 (2013.01); G09G 2310/0297 (2013.01); G09G 2320/0204 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0247 (2013.01); G09G 2320/0613 (2013.01); G09G 2320/0673 (2013.01); H03F 2200/375 (2013.01);
Abstract

A system for offset cancellation for driving a display panel includes: a plurality of source amplifiers driving the display panel; an image analyzer configured to receive a data input of an image frame and analyze the data input; and a chopping pattern controller connected with the image analyzer and configured to determine a chopping pattern that fits the data input based on analysis results of the image analyzer, and apply the determined chopping pattern to the source amplifiers. The source amplifiers are divided into N groups while the chopping pattern controller is configured to drive source amplifiers in each group by a single chopping control signal. The image analyzer is configured to generate an indicator that indicates whether image data being analyzed corresponds to a general image or one of pre-registered killer pattern images. A method for offset cancellation for driving a display panel is also provided.


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