LIGHT GUIDE PLATE, BACKLIGHT UNIT AND DISPLAY DEVICE
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United States of America Patent
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Issued Date -
Mar 2, 2017
app pub date -
Aug 21, 2015
filing date -
Apr 20, 2015
priority date (Note) -
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Abstract
A light guide plate (02), a backlight unit (05) and a display device (09) are disclosed. The backlight unit (05) includes a light guide plate (02), a frame (051) and a lamp group. The light guide plate (02) includes: a light-out surface (M), a gridded surface (N) configured as being opposite to the light-out surface (M) and having gridded dots disposed on it, and side surfaces (W) intersecting both the light-out surface (M) and the gridded surface (N), gridded dots are disposed on a non-light-in surface of the side surfaces (W) of the light guide plate (02). The frame (051) is disposed outside the side surfaces (W) of the light guide plate (02). The lamp group is configured for emitting light, such that the light is reflected by the gridded surface (N) as well as the side surfaces (W) having gridded dots disposed thereon of the light guide plate (02), and then the reflected light emits from the light-out surface (M). As it is easy to bond side reflective sheets (052) to the side surfaces (W) of the light guide plate (02), reflection effect to the light is improve and the light utilization efficiency is increased.
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