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:
Jan. 19, 2016

Filed:

Jun. 12, 2013
Applicants:

Lighthouse Technologies Limited, Shatin, HK;

Lighthouse Technologies (Huizhou) Limited, Huizhou, CN;

Inventor:

Kui Lai Curie Chan, Hong Kong, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 5/00 (2006.01); G09G 3/20 (2006.01); G09G 3/32 (2006.01);
U.S. Cl.
CPC ...
G09G 3/2003 (2013.01); G09G 3/32 (2013.01); G09G 2320/0693 (2013.01);
Abstract

A system and method for color matching/chromaticity adjustment for a video screen, display panel, module or other component that comprises different batches of light emitting diodes ('LEDs'). The system and method do not alter the panel/module's RGB gain when adjusting saturation, luminance and hue. This way, the panels and modules can achieve a desired/targeted white balance. As such, different batches of LEDs can be set to the same RGB ratios to achieve proper color matching. Thus, the system and method can mix different batches of LEDs in the same video screen or wall, yet achieve uniformity across the screen/wall.


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