Lg Display Co., Ltd.

Jaeseo Kim

Kyuman Lee

Nakjin Seong

Sangsoo Han

Namkyun Cho

Wonyong Park

Sansoo Han

Chulhyun Hwang

The exemplary embodiment suggests an apparatus and a method for driving a light source of a backlight unit. The apparatus for driving the light source of the backlight unit comprises a plurality of LED columns; a power output terminal and feedback terminals connected to the LED columns; and an LED driver sequentially driving the LEDs according to sequentially delayed PWM signals. The LED driver decides an operable number of LED channel based on the signals input through the feedback terminals, and sequentially delays the PWM signals with the phase difference controlled by the number of LED channel.

Apparatus and method for driving light source of back light unit

A liquid crystal display is disclosed. The liquid crystal display includes a liquid crystal display panel including an upper substrate, a lower substrate, a liquid crystal layer between the upper substrate and the lower substrate, and m&#xd7;n liquid crystal cells (where m and n are a positive integer) arranged in a matrix format according to a crossing structure of m/2 data lines and 2n gate lines, a plurality of chip on films (COFs) on which source driver integrated circuits (ICs) supplying a data voltage to the data lines are mounted, a printed circuit board (PCB) connected to input terminals of the COFs, and a gate drive circuit directly mounted onto the lower substrate, the gate drive circuit supplying a gate pulse to the gate lines.

Liquid crystal display

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Chungbuk, South Korea

Jaeseo Kim