Lg Display Co., Ltd.

Postech Academy-industry Foundation

Sin-Ho Kang

In-Jae Chung

Jae-Ho Lee

Min-Su Cho

Hae-Wook Han

Kyeong-Kun Jang

Mee-Hyun Lim

Sung-Kyung Hwang

Seung-Ho Jang

Kyoung-Bo Han

Kee-Chul Kim

Tae-Hun Kim

Yeun-hyeok Yang

Jae-yong Choi

A liquid crystal display device includes a liquid crystal panel; a plurality of light emitting diode units to supply light to the liquid crystal panel; and a scan line and a light emission data line connected to the LED unit, wherein the scan line and the light emission data line transfer a scan signal and a light emission data current, respectively, wherein the LED unit includes: a switching circuit that is connected to the scan line and the light emission data line; a current mirror circuit that is connected to the switching circuit, and that outputs a light emission current in response to the light emission data current; and an LED that emits the light in response to the light emission current.

Liquid crystal display device including LED unit using current mirror circuit

The present invention provides a color mixing lens which can improve color reproducibility, be made slim and adjust an emission pattern; and a liquid crystal display device having the same. The color mixing lens includes a light receiving portion having at least two light emission diodes positioned at a side for emitting color lights different from each other and light receiving recesses for placing the light emission diodes therein respectively, a color mixing portion formed on the light receiving portion for mixing the lights from the light emission diodes into a white color light, and a light emission portion formed on the color mixing portion for emitting the white light from the color mixing portion through a side thereof.

Color mixing lens with light receiving portion, color mixing portion, and light emission portion, and liquid crystal display device having the same

A light emitting diode (LED) package and a method of manufacturing a LED package is provided. The LED package includes a case having first and second lead frames disposed through the case; an LED chip disposed on the case, the LED chip having first and second electrodes directly connected to the first and second lead frames through a eutectic bond, respectively; and a lens disposed over the case covering the LED chip.

Light emitting diode package and method of fabricating the same

The present invention provides a color mixing lens which can improve color reproducibility, be made slim and adjust an emission pattern; and a liquid crystal display device having the same. The color mixing lens includes a light receiving portion having light receiving recesses which respectively house light emission diodes formed at a side surface thereof for positioning at least two light emission diodes at the side surface for producing color lights different from each other, a color mixing portion formed on the light receiving portion for mixing the lights from the light emission diodes into a white color light, and a light emission portion formed on the color mixing portion for emitting the white light from the color mixing portion through a top surface thereof.

Color mixing lens and liquid crystal display device having the same

Growing community of inventors

Suwon-si, South Korea

Sin-Ho Kang