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Original Articles

Fabrication of a large LCD backlight unit with red, green, and blue LED lamps

, , &
Pages 97-100 | Received 10 Aug 2009, Accepted 18 Sep 2009, Published online: 22 Nov 2010
 

Abstract

A backlight unit for a 42‐inch LCD TV was manufactured with red, green, and blue LED lamps. The luminous and light extraction efficiencies of the LED lamps were increased by improving their light reflection structures and thermal properties. The blue, green, and red LED lamps showed different luminous efficiencies as a function of the input current. Compared to the conventional red LED lamp, however, the developed red LED lamp showed very high luminous efficiency in a low drive current. Taking these luminous efficiencies into account, the fabricated backlight unit showed high energy efficiency, low power consumption, and a wide color gamut.

Notes

Member, KIDS

Backlight Technology, LCD Division, Samsung Electronics Co., Ltd., Asan City 336–841, Korea

Department of Applied Physics, Dankook University, Gyeonggi‐do 448–701, Korea

Department Of Electronics, Sunmoon University, 100 Kalsanri, Tangjeong, Asan, Choong‐Nam 336–708, Korea

Additional information

Notes on contributors

Heetae Kim

* b

Soon‐Jae Yu

* a

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