Reducing LCD power consumption by preferentially dimming individual colors

Reducing LCD power consumption by preferentially dimming individual colors

A display device may include a respective backlight controller for each color in a color model. A screen driver for the display device may produce a histogram of brightness values for each color in the pixel data for an image frame, and may reduce the brightness of backlighting elements of the displ...

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Hauptverfasser: Knepper Lawrence E, Yildiz Yagiz Can
Format: Patent
Sprache:eng
Schlagworte:
ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CRYPTOGRAPHY
DISPLAY
EDUCATION
PHYSICS
SEALS
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creator Knepper Lawrence E
Yildiz Yagiz Can
description A display device may include a respective backlight controller for each color in a color model. A screen driver for the display device may produce a histogram of brightness values for each color in the pixel data for an image frame, and may reduce the brightness of backlighting elements of the display device for individual colors when the histogram data indicates that maximum brightness is not required. For example, based on a backlight control value or signal sent to the corresponding backlight controller, the intensity of backlighting elements for one color may be turned down, or even off, for a particular image frame while the backlighting elements for other colors remain fully powered. The screen driver may make an adjustment to the pixel data to compensate for the dimming of the backlighting elements by modifying the color values in a color lookup table.
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subjects ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CRYPTOGRAPHY
DISPLAY
EDUCATION
PHYSICS
SEALS
title Reducing LCD power consumption by preferentially dimming individual colors
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