System and method for providing a wide aspect ratio flat panel display monitor independent white-balance adjustment and gamma correction capabilities
DCFirst Claim
1. A flat panel monitor for displaying information originated by a host computer, said flat panel monitor comprising:
- a graphics controller operable to receive a gamma correction control signal, the graphics controller operable to adjust a gamma value of a liquid crystal display screen displaying a representation of image data in response to the gamma correction control signal, the graphics controller operable to adjust the gamma value without substantially affecting a grayscale resolution of the liquid crystal display screen.
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Abstract
A system and method are described herein for controlling the white balance and providing gamma correction without compromising gray-scale dynamic range in a flat panel liquid crystal display (LCD). According to one embodiment of the present invention, the flat panel LCD includes electronic circuitry for coupling to a host computer to receive a white-balance adjustment control signal, and electronic circuitry for receiving image data to be rendered on the flat panel LCD. Further, the flat panel LCD of one embodiment is configured for coupling to a color-sensing device to receive optical characteristics data of the flat panel LCD detected by the color-sensing device. The white balance adjustment mechanisms include the provision of two or more light sources of differing color temperature, whose brightness can be independently varied (and distributed through a light distribution mechanism) to adjust color temperature without altering the grayscale resolution of the RGB colors. The present invention further includes white balance adjustment software and gamma correction software for generating white-balance adjustment control signals and appropriate gamma correction curves.
119 Citations
20 Claims
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1. A flat panel monitor for displaying information originated by a host computer, said flat panel monitor comprising:
a graphics controller operable to receive a gamma correction control signal, the graphics controller operable to adjust a gamma value of a liquid crystal display screen displaying a representation of image data in response to the gamma correction control signal, the graphics controller operable to adjust the gamma value without substantially affecting a grayscale resolution of the liquid crystal display screen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for displaying information on a flat panel monitor, comprising:
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receiving a gamma correction control signal; adjusting a gamma value for a liquid crystal display screen in response to the gamma correction control signal, the gamma value being adjusted without substantially affecting a grayscale resolution of the liquid crystal display screen. - View Dependent Claims (12, 13, 14, 15)
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16. A method for providing image data to a flat panel monitor, comprising:
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generating an uncorrected color value in response to receipt of image data; translating an uncorrected color value to a corrected color value according to an actual gamma response for a liquid crystal display screen; displaying the image data with the corrected color value without substantially affecting a grayscale resolution of the liquid crystal display screen. - View Dependent Claims (17, 18, 19, 20)
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Specification