Lg Display Co., Ltd.

Jae Won Shin

Hyo Jin Kim

Ju Han Kim

Wook Jeon

Dal Jae Lee

Min Hwa Kim

Jun Hyung Kim

Rok Hee Lee

Kyu Bong Jung

Jin Woo Hong

Tae Yoon Kang

A liquid crystal display (LCD) device and a method for driving the same, which are capable of achieving an enhancement in display quality, are disclosed. The LCD device includes a display panel for displaying an image, a backlight unit comprising a plurality red light sources, a plurality of green light sources, and a plurality of blue light sources, a backlight driver for controlling a duty rate of a first drive signal to drive the red light sources, a duty rate of a second drive signal to drive the green light sources, and a duty rate of a third drive signal to drive the blue light sources, in accordance with a control signal including color coordinate information and luminance information, a luminance corrector for varying the luminance information of the control signal when the duty rate of one of the first to third drive signal is 100%, and a light sensor for sensing light beams from the light sources, generating light sensing signals based on the sensed light beams, and supplying the light sensing signals to the backlight driver and to the luminance corrector.

Liquid crystal display device and method for driving the same

A backlight unit having improved reliability is disclosed. The backlight unit includes a support main formed of a mold having a rectangular frame shape, a plurality of LEDs arranged at a side of the support main, a light guide plate arranged parallel to the plurality of LEDs and converting a point light to a surface light, an optical sensor unit arranged at the other side of the support main and detecting light emitted from the plurality of LEDs, and a light incident hole formed at the other side of the support main corresponding to the optical sensor unit and guiding light output from the light guide plate to proceed toward the optical sensor unit by changing a path of the light.

Backlight unit and liquid crystal display device having the same

A backlight assembly includes a plurality of lamps each having electrodes at opposite ends of a tube, and a bottom cover for receiving the plurality of lamps, the bottom cover having a bottom surface, first lateral sides that correspond to the ends of the plurality of lamps, and second lateral sides that correspond to a lengthwise direction of the plurality of lamps, wherein the first lateral sides have a first height above the bottom surface of the bottom cover that is less than a second height of the second lateral sides above the bottom surface of the bottom cover.

Backlight assembly and liquid crystal display device having the same

Growing community of inventors

Busan-si, South Korea

Jae Won Shin