Other

James M Brannen

William R Dunn

Joseph W Goode, Iii

James D Cleland

The present invention is directed to a method and apparatus for adjusting the viewing angle of a liquid crystal display. In a preferred embodiment of the present invention, a plurality of digital-to-analog converters are arranged in pairs which have a fixed relationship. By determining appropriate values for the digital-to-analog converters, a desired viewing angle may be obtained for a liquid crystal display.

Gamma correction of the viewing angle of liquid crystal display

The present invention is a method for cooling a lamp backlighting module of a liquid crystal display. A preferred method of the present invention begins by providing a predetermined power input to a lamp. As power is provided to the lamp, the temperature of the lamp is monitored. When the temperature of the lamp rises to a first predetermined temperature, one or more fans are turned on which are adapted to dissipate the heat generated by the lamp. After the fan(s) cool the lamp to a second, lower predetermined temperature, the fan(s) are turned off. By using a fan to dissipate heat generated by a lamp backlighting module, the present invention may maintain the temperature of the lamp within a desired range. As a result, the present invention preferably increases the reliability and performance of the liquid crystal display. In particular, a preferred embodiment of the present invention minimizes the power necessary to achieve optimal luminance, and it enables the lamp to constantly produce optimal luminance for a constant power input.

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Atlanta, GA, United States of America

James M Brannen