Liquid crystal display device having a light guide plate being formed in a trapezoidal shape in cross section
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United States of America Patent
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Mar 19, 2013
Grant Date -
Aug 20, 2009
app pub date -
Feb 13, 2009
filing date -
Feb 20, 2008
priority date (Note) -
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Abstract
A backlight which arranges light emitting diodes on a side surface of light guide plate adopts the structure which allows the easy removal of the light guide plate from a mold and makes it difficult for a stress or the like to influence the fine structure of a light incident portion of the light guide plate. In a liquid crystal display device having a backlight which radiates light to a liquid crystal panel, LEDs which constitute a light emitting element are mounted on a light guide plate which is mounted on a backlight, and edge portions of the light guide plate are tapered such that a width of the light guide plate is increased in the removal direction of the side surface of the light guide plate. Further, an ejector-pin mark is formed on a lower surface of the light guide plate by pushing an ejector pin in the removal direction of the light guide plate.
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