Lg Display Co., Ltd.

Koo-Hwa Lee

Rok-Hee Lee

Sang-Chul Ryu

Kyeong-Kun Jang

Hye-In Yun

Jun-Young Park

Pu-Jin Kim

Kee-Tae Yoo

Geun-woo Lee

A backlight unit according to an embodiment includes: a light guide plate; a light emitting diode (LED) assembly supplying a light to the light guide plate; and a reflecting plate under the light guide plate, wherein the LED assembly includes: an LED printed circuit board (PCB) disposed at a side of the light guide plate; a plurality of LED chips over the LED PCB, the plurality of LED chips spaced apart from each other; a plurality of first lead frames electrically connecting the LED PCB and the plurality of LED chips; and an LED housing surrounding the plurality of LED chips and the plurality of first lead frames.

Backlight unit and liquid crystal display device including the same

A backlight unit for a liquid crystal display device includes a plurality of white LEDs on a PCB, along a length direction of the PCB, and emitting white lights, the plurality of white LEDs including first and second LEDs alternately arranged; and a plurality of optical sheets on a path of the white lights from the plurality of white LEDs to a liquid crystal panel, wherein the white light from the first LED and the white light from the second LED are substantially complementary in color to each other with respect to a target white light.

Backlight unit including light emitting diodes and liquid crystal display device including the same

A flexible printed circuit board (PCB) for a light emitting diode backlight unit includes a flexible base film; a plurality of metal lines on a first surface of the flexible base film; a cover layer on the metal lines and covering a center portion of the first surface of the flexible base film; a first gold-plating pattern on the metal lines and at both ends of the first surface of the flexible base film; a metal pattern on a second surface of the flexible base film and including a first sub-pattern at one end of the second surface, a second sub-pattern at the other end of the second surface and a plurality of third-sub patterns between the first and second sub-patterns of the metal pattern; and a second gold-plating pattern on the metal pattern and including a fourth sub-pattern on the first sub-pattern, a fifth sub-pattern on the second sub-pattern, and a plurality of sixth-sub patterns each on the third sub-patterns, wherein a first groove between a first double-layered pattern of the first sub-pattern and the fourth sub-pattern and a second double-layered pattern of the third sub-pattern and the sixth sub-pattern, a second groove between a third double-layered pattern of the second sub-pattern and the fifth sub-pattern and a second double-layered pattern of the third sub-pattern and the sixth sub-pattern, and a third groove between adjacent second double-layered patterns respectively expose a portion of the second surface of the flexible base film.

Flexible printed circuit board for light emitting diode backlight unit and method of fabricating the same

Growing community of inventors

Gyeongsangbuk-do, South Korea

Koo-Hwa Lee