Lg Display Co., Ltd.

Daeseok Oh

Moonsoo Chung

Seungho Heo

Yousung Nam

Saichang Yun

Changdeok Lee

Daeho Park

YongHwa Park

Juneho Park

A display device, a display controller, a data driving circuit, and a low power driving method that are capable of preventing undesirable current in the data driving circuit from being caused and reducing power consumption by using different types of clock signals needed for data storing processing according to whether there occurs no data transition or there occurs a data transition.

Display device, display controller, data driving circuit, and low-power driving method

A disclosed display device includes a display panel with a plurality of pixels and a plurality of signal lines respectively connected to the pixels, and a panel driving circuit to drive the signal lines. The display device further includes a timing controller to receive a first panel self-refresh (PSR) signal and an input image data from a host system, to sense whether the input image data has a preset video format based on the first PSR signal and, if the input image data is sensed to have the preset video format, to control the panel driving circuit to perform normal driving of the signal lines at a first frame frequency in a first group of frames and interlaced low-speed driving of the signal lines at a second frame frequency lower than the first frame frequency in a second group of frames to display the input image data.

Display device capable of low-speed driving and method of driving the same

A liquid crystal display includes according to an embodiment a display panel provided with a plurality of data lines, a plurality of gate lines intersecting the data lines, liquid crystal cells arranged in a matrix, and TFTs disposed at the intersections of the data lines and the gate lines; source drive ICs configured to supply data voltages to the data lines, wherein polarities of data voltages are reversed by a column inversion scheme; and a gate driver configured to sequentially supply gate pulses for the gate lines, wherein polarities of the data voltages charged in the liquid crystal cells in the display panel are reversed in dot unit.

Liquid crystal display

Growing community of inventors

Gyeonggi-do, South Korea

Daeseok Oh