Backlight module with detachable light source unit and liquid crystal display device having the same
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United States of America Patent
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Jul 2, 2013
Grant Date -
Oct 29, 2009
app pub date -
Feb 19, 2009
filing date -
Mar 6, 2008
priority date (Note) -
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Abstract
A backlight module with a detachable light source unit includes a light guide plate and a light source unit housed in a module case. The light source unit can slide along a lengthwise direction of one end face of the light guide plate. The light source unit is equipped with a U-shaped cover member for holding a plurality of point light sources such as LEDs along a lengthwise direction. The backlight module further includes a coupling member to change a positional relationship between the light guide plate and the light source unit such that a distance between an emitting surface of the LED and an incident plane of the light guide plate during a process of exchanging the light source unit is larger than that between the emitting surface and the incident plane at a time of home position of the light source unit in the module case.
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