{HEAD ~ Examples} include, but are not limited to, liquid crystal displays employing an output polarizer for generating an image and {TAIL ~ organic light emitting diode displays} employing circular polarizers for enhancement of contrast ratio in sunlight 
{ HEAD ~ Examples } include , but are not limited to , liquid crystal displays employing an output polarizer for generating an image and { TAIL ~ organic light emitting diode displays } employing circular polarizers for enhancement of contrast ratio in sunlight
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