Optical film for liquid crystal display

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United States of America Patent

PATENT NO 10802321
APP PUB NO 20190025630A1
SERIAL NO

16036532

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Abstract

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An optical film includes a first diffraction layer, a second diffraction layer, and a cover layer. The first diffraction layer includes a plurality of first diffraction gratings arranged in the same direction on a surface thereof. The second diffraction layer includes a plurality of second diffraction gratings arranged in the same direction gap-filled the first diffraction gratings of the first diffraction layer, wherein the directions of the first diffraction gratings and the second diffraction gratings are parallel to each other. The cover layer is formed on the second diffraction gratings of the second diffraction layer. At least one of the first diffraction layer, the second diffraction layer and the cover layer contains dyes, and therefore, the optical film can reduce the light leakage defect of a conventional liquid crystal display in a large viewing angles and make the liquid crystal display have uniform dark-state images and colorful images.

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Patent Owner(s)

Patent OwnerAddress
BENQ MATERIALS CORPORATION29 JIANGUO E RD GUISHAN TAOYUAN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cheng, Meng-Chia Taoyuan, TW 6 40
Chou, Meng-Chieh Taoyuan, TW 23 215
Hong, Cyun-Tai Taoyuan, TW 20 14
Kuo, Chen-Kuan Taoyuan, TW 22 54
Lin, Chia-Feng Taoyuan, TW 18 279
Lin, Meng-Jie Taoyuan, TW 6 15
Shen, Chuen-Nan Taoyuan, TW 7 4
Wu, Fung-Hsu Taoyuan, TW 62 110

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