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:
Aug. 28, 2018

Filed:

Apr. 13, 2017
Applicant:

Mstar Semiconductor, Inc., Hsinchu Hsien, TW;

Inventors:

Shihheng Tsai, Hsinchu County, TW;

Chung-Yi Chen, Hsinchu County, TW;

Assignee:

MSTAR SEMICONDUCTOR, INC., Hsinchu Hsien, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 5/02 (2006.01); G09G 5/10 (2006.01);
U.S. Cl.
CPC ...
G09G 5/10 (2013.01); G09G 2320/0271 (2013.01); G09G 2320/0646 (2013.01); G09G 2320/08 (2013.01);
Abstract

A control circuit applied to a display includes an adjustment parameter generating circuit, an adjustment circuit, a compensation circuit, an image detail compensating circuit and an output circuit. The adjustment parameter generating circuit determines an adjustment parameter according to a backlight intensity corresponding to a pixel in a frame. The adjustment circuit adjusts a pixel value of the pixel according to the adjustment parameter to generate an adjusted pixel value. The compensation circuit compensates the adjusted pixel value according to a compensation curve go generate a compensated pixel value. The compensation curve includes a non-linear segment. The image detail compensating circuit generates a detail compensation value according to an edge factor of the pixel. The output circuit adjusts the compensated pixel value according to the detail compensation value to generate an output pixel value of the pixel.


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