Using content type to select brightness in direct-lit backlight units

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11967291
SERIAL NO

18328250

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Abstract

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A display may have a pixel array such as a liquid crystal pixel array. The pixel array may be illuminated by a backlight unit that includes an array of light-emitting diodes (LEDs). The backlight unit may determine the type of content in the image data. The backlight unit may decide to prioritize either mitigating halo or mitigating clipping based on the type of content. The determination of the type of content in the image data may be used to determine the brightness values for the LEDs in the LED array. If the content is determined to be a first type of content, at least one given LED in the LED array may have a different brightness value than if the content is determined to be a second, different type of content. Classifying content in the image data may be useful in optimizing visible artifacts such as visible halo and clipping.

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Patent Owner(s)

Patent OwnerAddress
APPLE INC1 INFINITE LOOP MS 40-PAT CUPERTINO CA 95014

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Albrecht, Marc San Francisco, US 63 673
Cao, Meng San Jose, US 17 77
Emelie, Pierre-Yves Mountain View, US 27 191
Han, Shuo San Jose, US 10 5
Hong, Zhendong San Jose, US 17 133
Jung, Tobias San Francisco, US 24 204
Petrovich, Duane M San Francisco, US 6 27
Shan, Jiulong Cupertino, US 3 13
Tofighi, Mohammad San Jose, US 2 10
Yao, Wei H Palo Alto, US 118 1079

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