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US07169448B2 Optical compensator and liquid crystal display l 有权
光学补偿器和液晶显示器l

Optical compensator and liquid crystal display l
摘要:
The invention relates to an optical compensator for liquid crystal displays comprising at least one O plate retarder, and at least one twisted A plate retarder with a twist angle φ of more than 90°, and further relates to a liquid crystal display comprising such a compensator.
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