Luminescent diode, fabrication method thereof, and backlight...

Details Luminescent diode, fabrication method thereof, and backlight... Luminescent diode, fabrication method thereof, and backlight...

2006-06-14

2008-08-05

Lee, Y M. (Department: 2885)

Illumination

Light fiber, rod, or pipe

Light emitting diode

C362S561000, C362S612000

Reexamination Certificate

active

07407312

ABSTRACT:
A luminescent diode (LED) that improves brightness uniformity, a fabrication method thereof, and a backlight assembly having the same are disclosed. The LED includes an LED chip that emits light in a side surface of an LCD device; and an optical guide element on the LED chip that enlarges a radiation angle of the light. The LED may alternatively include an LED chip that emits light on a bottom surface of the LCD device; and an optical guide element on the LED chip that enlarges a radiation angle of the light. The radiation angle of light maximally enlarged to prevent hot spots caused by brightness nonuniformity. An enhanced image quality results.

REFERENCES:
patent: 5375043 (1994-12-01), Tokunaga
patent: 6050704 (2000-04-01), Park
patent: 6154595 (2000-11-01), Yokogawa et al.
patent: 55138891 (1980-10-01), None
patent: 2005109294 (2005-11-01), None

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