OPTICAL FILM, OPTICAL FILM SET, BACKLIGHT MODULE AND DISPLAY DEVICE
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United States of America Patent
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May 23, 2024
app pub date -
Jan 24, 2024
filing date -
Dec 21, 2021
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Abstract
An optical film, an optical film set, a backlight module and a display device are provided. The optical film includes a main body, plural first prism structures and plural second prism structures. The main body has a first optical surface and a second optical surface. The first prism structures are disposed on the first optical surface. Each of the first prism structures extends along a first direction. The second prism structures are disposed on the second optical surface. Each of the second prism structures extends along a second direction. The first direction is different from the second direction.
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