BACKLIGHT MODULE AND DISPLAY DEVICE
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United States of America
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Dec 5, 2024
app pub date -
May 26, 2024
filing date -
May 26, 2024
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Abstract
A backlight module includes a light guide plate, a light source, an optical film, and first and second prism sheets. The light source and the optical film are respectively located on a light incident surface and a light exit surface of the light guide plate. The optical film includes a substrate and optical microstructures including first and second inclined surfaces and having an extending direction parallel to the light incident surface. There are respectively first and second base angles between the first and second inclined surfaces and a surface of the substrate. An angle range of the first and second base angles is 50 to 70 degrees. The first and second prism sheets t each have prism structures. An angle range of an included angle between extending directions of the optical microstructures and the prism structures is 85 to 95 degrees. A display device having the backlight module is proposed.
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