Abstract
Color breakup is a lethal issue to conventional
field-sequential-color LCDs. Several methods have been proposed to
solve this problem. However, these solutions are either more than
180 Hz—the currently used LC mode is not sufficiently fast for
this field rate—or they degrade the image quality while using
a field rate of 120 Hz. To overcome these limitations, a 120 Hz Stencil
Local Primary Desaturation, Stencil-LPD, is presented in this work.
The 120 Hz Stencil-LPD method provides reduced but sufficient saturated
backlight color to precisely present an image with less color distortion
or color breakup. After optimizing a number of backlight segments,
the experimental results demonstrate that the image fidelity is significantly
improved and color breakup is greatly suppressed compared to the existing
methods.
© 2015 OAPA
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