BACKLIGHT MODULE AND 3D DISPLAY DEVICE
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United States of America Patent
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Issued Date -
Oct 15, 2015
app pub date -
Jun 26, 2014
filing date -
Apr 15, 2014
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Abandoned
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Abstract
The present invention discloses a backlight module and a 3D display device. The backlight module comprises a backboard, and LED support frames positioned beneath the backboard for supporting LED lamps. A hollow structure is formed at a position on the backboard around corresponding LED lamp. The backlight module further comprises light condensing hoods corresponding to the LED lamps. The light condensing hood can passing through the hollow structure to stretch out or withdraw back. By condensing light of the LED lamp via the light condensing hood, a user can feel the contrast between strong light and weak light in a 3D display picture, so that the sense of reality of a 3D display device is enhanced; moreover, when all the light condensing hoods are stretched out from the backlight module, the 3D display device may become a searchlight, the practicability of the 3D display device is further enhanced.
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