Invention Grant
US07113670B2 Method and device to improve backlight uniformity 有权
提高背光均匀性的方法和装置

Method and device to improve backlight uniformity
Abstract:
A hot spot filter for a light guide is created by taking an image of the light output pattern of an illuminated light guide. The hot spot filter may be a film, a layer, or an additional liquid crystal display dedicated to attenuating bright spots from the light guide. The hot spot filter may be incorporated into the image display by adjusting the grey scale of individual pixels to provide sufficient compensation.
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