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.
Patent No.:
Date of Patent:
Mar. 09, 2021
Filed:
Feb. 24, 2020
Applicant:
Himax Technologies Limited, Tainan, TW;
Inventor:
Ying-Han Yeh, Tainan, TW;
Assignee:
HIMAX TECHNOLOGIES LIMITED, Tainan, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/3208 (2016.01);
U.S. Cl.
CPC ...
G09G 3/3208 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0276 (2013.01); G09G 2320/0285 (2013.01); G09G 2320/045 (2013.01); G09G 2320/0626 (2013.01); G09G 2360/16 (2013.01);
Abstract
A mura compensation apparatus for an organic light emitting diode (OLED) display includes a calculator and a mura compensator. The calculator is configured to calculate a non-maximum-luminance demura offset value of a pixel of the OLED display for a determined gray level on the basis of a gamma value, a maximum-luminance demura offset value of the pixel of the OLED display for a relocated gray level and a non-maximum luminance value of the OLED display. The mura compensator is configured to perform mura compensation on the pixel of the OLED display by the non-maximum-luminance demura offset value for the determined gray level.