Samsung Electronics Co., Ltd.

Samsung Display Co., Ltd.

Gi-Cheri Kim

Se-Ki Park

Sang-Yu Lee

Young-keun Lee

Seok-Hyun Nam

Yong-Hoon Kwon

Seock-Hwan Kang

Byung-Choon Yang

Dong-Min Yeo

Byoung-Dae Ye

Eui-Jeong Kang

Jeom-Oh Kim

A backlight unit assembly, a liquid crystal display having the same, and a dimming method thereof are provided. The dimming method for a liquid crystal display includes setting a plurality of lookup tables, each lookup table having different data for adjusting luminance corresponding to a same grayscale, calculating a grayscale average of a whole liquid crystal display panel and grayscale averages of individual liquid crystal display panel blocks with respect to an image signal input to the liquid crystal display panel, selecting one of the plurality of lookup tables in accordance with the whole grayscale average, and calculating the data for obtaining the luminance corresponding to the individual grayscale averages in the selected lookup table, and adjusting and applying power to a light emitting diode assembly using the calculated data. In the case of displaying an image, which is dark on the whole and only a part of which is bright, power is applied with a wider pulse width at the same grayscale, and thus the image can be displayed with a desired luminance to minimize image distortion.

Backlight unit assembly, liquid crystal display having the same, and dimming method thereof

A liquid crystal display ('LCD') includes; a liquid crystal panel which displays an image, and a plurality of light-emitting blocks which provide light to the liquid crystal panel, wherein each of the light-emitting blocks includes a first string having a plurality of first light-emitting elements connected in series and a second string having a plurality of second light-emitting elements connected in series, and an amount of light emitted by each of the first light-emitting elements is different from an amount of light emitted by each of the second light-emitting elements.

Liquid crystal display and method of driving the same

A backlight unit is provided. The backlight unit includes a point light source circuit board and a point light source group row comprised of a plurality of point light source groups arranged in the point light source circuit board in a line. In addition, at least a part of the point light source groups have a different rotating angle with respect to each other.

Backlight unit and liquid crystal display having the same

Growing community of inventors

Yongin-si, South Korea

Gi-Cheri Kim