Backlight module and stereoscopic display device using the same
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United States of America Patent
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Nov 6, 2018
Grant Date -
Jan 25, 2018
app pub date -
Sep 20, 2016
filing date -
Jul 20, 2016
priority date (Note) -
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Abstract
A backlight module includes a light source module, a light timing control unit, a light guide plate and a lenticular lens. The light source module includes first light sources and second light sources. The lenticular lens disposed beside a side surface of the light guide plate and optically coupled between the light source module and the light guide plate, the lenticular lens having a central axis and a plurality of lenticular units. Each lenticular unit has a central optical axis, and one of the first light sources covered by one of the lenticular units is symmetrically disposed with respect to the central optical axis of the lenticular unit covering the first light source, at least two of the second light sources covered by one of lenticular units are disposed symmetrically with respect to the central optical axis of the lenticular unit covering the second light sources.
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