Automatic image luminance control with backlight adjustment
First Claim
Patent Images
1. A method comprising:
- determining an ambient light level for an operating environment of a display device having an adjustable backlight to provide variable brightness; and
modifying a color brightness of one or more portions of an image to be displayed on the display device based on the ambient light level.
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Abstract
Methods and apparatuses for adjusting backlight intensity in a display device of a computer system, and compensating with image brightness adjustments via graphics controller color-lookup table to retain a net equivalent level of brightness as perceived by the user when viewing images produced by the graphics controller on the display device.
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Citations
60 Claims
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1. A method comprising:
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determining an ambient light level for an operating environment of a display device having an adjustable backlight to provide variable brightness; and
modifying a color brightness of one or more portions of an image to be displayed on the display device based on the ambient light level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method comprising:
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determining an ambient light level for a display device having an adjustable backlight to provide variable backlight intensity;
modifying the backlight intensity based on the ambient light level; and
modifying a color brightness or one or more portions of an image to be displayed on the display device based on the modified intensity of the adjustable backlight. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. An apparatus comprising:
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an ambient light sensor to generate signals indicating a sensed ambient light level;
a display device having an adjustable backlight source; and
a graphics control device coupled with the ambient light sensor on the display device, the graphics control device to modify image brightness and backlight intensity based on the sensed ambient light level. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. An article comprising a computer-readable medium having stored thereon instructions that, when executed, cause one or more processing devices to:
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determine an ambient light level for a display device having an adjustable backlight to provide variable backlight intensity; and
modify a color brightness of one or more portions of an image to be displayed on the display device based on the ambient light level. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41)
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42. An article comprising a computer-readable medium having stored thereon instructions that, when executed, cause one or more computing devices to:
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determine an ambient light level for a display device having an adjustable backlight to provide variable backlight intensity;
modify the backlight intensity based on the ambient light level; and
modify a color brightness or one or more portions of an image to be displayed on the display device based on the modified intensity of the adjustable backlight. - View Dependent Claims (43, 44, 45, 46, 47, 48, 49, 50)
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51. A system comprising:
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a bus;
an ambient light sensor coupled with the bus to generate signals indicating a sensed ambient light level;
an input/output controller coupled with the bus;
a display device having an adjustable backlight source; and
a graphics control device coupled with the ambient light sensor, the bus and the display device, the graphics control device to modify image brightness and backlight intensity based on the sensed ambient light level. - View Dependent Claims (52, 53, 54, 55, 56, 57, 58, 59, 60)
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Specification