Lg Display Co., Ltd.

Hyunchul Kim

Jeongho Kang

Changhun Cho

Jinsung Kim

Soondong Cho

Daehwan Kim

Yangseok Jeong

Mangyu Park

Pilsung Kang

Geunwoo Koh

Disclosed is a display device that has a data transmission device for providing a differential signal to a source driver, in which the data transmission device, for example, includes a differential signaling driver including a current controller, the current controller determining a toggling of an image data and setting an output current value based on a determination of the toggling of the image data; and first and second signal lines electrically connected between the differential signaling driver and a receiver, the receiver outputting the differential signal to the source driver.

Display device

A gate driver drives a display panel. First and second gate pulse generator circuits each drives a high supply voltage onto respective gate lines via respective high drive transistors during a gate pulse period and discharge their respective gate lines through the respective high drive transistors during a discharge period. A gate pulse modulation circuit provides the high supply voltage to the first gate pulse generator and the second gate pulse generator via an output terminal during the first pulse period and the second pulse period and couples a source terminal of the first high drive transistor and a source terminal of the second high drive transistor to a first return line via the output terminal during the first and second discharge periods.

A liquid crystal display device comprises: a display panel having a pixel array comprising a first group of cells and a second group of cells and configured to share data lines with cells of the first group adjacent in extension direction of the gate lines; a data driving circuit comprising a latch array, wherein the latch array temporally separates first group data to be applied to the liquid crystal cells of the first group and second group data to be applied to the liquid crystal cells of the second group according to data rendering control signals, and outputs the first group data earlier by about &#xbd; horizontal period than the second group data.

Liquid crystal display device capable of reducing number of output channels of data driving circuit

A liquid crystal display device and a method of driving the same are disclosed. The liquid crystal display device includes a liquid crystal display panel including data lines, gate lines crossing the data lines, and liquid crystal cells arranged in a matrix format at each of crossings of the data lines and the gate lines; a data drive circuit that converts digital video data into a positive/negative data voltage using gamma reference voltages to supply the positive/negative data voltage to the data lines; and a gamma voltage adjusting unit that increases a potential of each of the gamma reference voltages during a blanking period when a polarity of the positive/negative data voltage is inverted.

Liquid crystal display device with gamma voltage adjusting unit and driving method thereof for adjusting the potentials of the gamma reference voltages during a horizontal blanking period

A liquid crystal display and a method of driving the same are disclosed. The liquid crystal display includes a timing controller, N source drive integrated circuits (ICs), where N is an integer equal to or greater than 2, N pairs of data bus lines, each of which connects the timing controller to each of the N source drive ICs in a point-to-point manner, a lock check line that connects a first source drive IC of the N source drive ICs to the timing controller and cascade-connects the N source drive ICs to one another, and a feedback lock check line connecting a last source drive IC of the N source drive ICs to the timing controller. A swing width of an output voltage of the timing controller increases in proportion to a distance between the timing controller and the N source drive ICs.

Growing community of inventors

Gyeongbuk, South Korea

Hyunchul Kim