Backlight source device with circular arc diffusion units
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United States of America Patent
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Jun 13, 2000
Grant Date -
N/A
app pub date -
Jan 20, 1999
filing date -
Nov 17, 1998
priority date (Note) -
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Abstract
A backlight source device with circular arc diffusion units includes a transparent guide plate with circular arc diffusion units on the front or rear surface of the plate. A diffusion piece above the guide plate, a reflecting piece below the guide plate, and a lateral light source. Therefore, the dark and light regions in the backlight source device may be removed so that the illumination of the backlight becomes stronger and more uniform.
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