Lg Display Co., Ltd.

Su-Hwan Moon

Ji-Eun Chae

Jeong-Won Yoon

Binn Kim

Yong-Ho Jang

Soo-Young Yoon

Nam-Wook Cho

A light emission controller includes: a plurality of stages, including: a first node (n) controller charging a driving pulse of a gate-on voltage level to a set node (Q) by a reference clock pulse during an active period, a second node controller charging a pull-down voltage having the gate-on voltage level to a reset node during an inactive period, and an output unit controlled by voltage states of the Q and the reset node and outputting an active or inactive state output pulse, the ncontroller including: a first switching transistor supplying the driving pulse of the gate-on voltage level to nby the reference clock pulse during the active period, a second switching transistor supplying the driving pulse from nto the Q by a turn-on voltage, a first capacitor between the output unit and Q, and a second capacitor between the output unit and n

Light emission controller for display device, method of driving the same, and organic light-emitting display device including the same

Disclosed herein are an apparatus and method for driving a liquid crystal display device. The apparatus includes a liquid crystal panel in which the same colors of three-color sub-pixels are arranged in the directions of a plurality of gate lines, a data driver for driving a plurality of data lines, a first gate driver for sequentially driving (n&#x2212;3)th and (n)th gate lines among the gate lines during odd frame periods, a second gate driver for sequentially driving (n&#x2212;2)th and (n&#x2212;1)th gate lines among the gate lines during even frame periods, and a timing controller for generating different first and second gate control signals and a data control signal according to odd and even frame periods to supply the first and second gate control signals and the data control signal to the first and second gate drivers and the data driver, respectively.

Apparatus and method for driving liquid crystal display

A light sensing circuit capable of enhancing a reliability by lowering a dependency on a temperature change without using a resistor, a backlight control apparatus having the same, and an LCD device having the same. The light sensing circuit includes a first MOS-transistor; and a second MOS-transistor serially connected to the first MOS-transistor between a first power terminal and a ground terminal, in which a second power terminal is connected to each gate terminal of the first MOS-transistor and the second MOS-transistor, and an optical amount detecting terminal is connected to a common connection point between a drain terminal of the first MOS-transistor and a source terminal of the second MOS-transistor.

Light sensing circuit, backlight control apparatus having the same, and liquid crystal display device having the same

An apparatus and method for driving a Liquid Crystal Display (LCD) device are disclosed. The apparatus includes a liquid crystal panel in which a plurality of subpixels arranged on each horizontal line are commonly connected to at least one adjacent data line, and on at least one horizontal line basis, a plurality of subpixels are connected to at least one adjacent data line through Thin Film Transistors (TFTs) of the subpixels from a same direction with respect to the at least one adjacent data line, a data driver for driving a plurality of data lines, a gate driver for driving a plurality of gate lines, and a timing controller for arranging externally received image data according to arrangement of subpixel columns commonly connected to each data line, providing the arranged image data to the data driver, and controlling driving timings of the gate driver and the data driver.

Apparatus and method for dividing liquid crystal display device

A liquid crystal display (LCD) device comprises a liquid crystal panel having a plurality of pixel regions defined by a plurality of gate lines and data lines, each pixel region associated with a thin film transistor, a gate driving unit having an amorphous semiconductor and integrally formed with the liquid crystal panel capable of sending a scan signal to the gate lines having a pulse width longer than a turned on time of the thin film transistor located within the pixel region, and a data driving unit connected to the data lines capable of sending an image signal to the data lines.

Liquid crystal display device

A shift register which is capable of simultaneously driving gate lines is disclosed. The shift register includes a plurality of stages for simultaneously supplying all-drive signals to gate lines for an all-drive period and sequentially supplying scan pulses to the gate lines for a scan period.

Shift register

A shift register is disclosed. The shift register includes a plurality of stages for sequentially outputting scan pulses, wherein each of the stages includes a scan pulse output unit controlled according to voltage states of a set node and reset node for outputting a corresponding one of the scan pulses and supplying the corresponding scan pulse to a corresponding gate line, a carry pulse output unit controlled according to the voltage states of the set node and reset node for outputting a carry pulse and supplying it to an upstream one of the stages and a downstream one of the stages, a first node controller for controlling the voltage states of the set node and reset node according to a carry pulse from the upstream stage, a carry pulse from the downstream stage and a first control signal externally supplied thereto, an all-drive signal output unit controlled according to voltage states of a control node and reset control node for outputting an all-drive signal and supplying it to the corresponding gate line, and a second node controller for controlling the voltage states of the control node and reset control node according to the voltage state of the set node, the voltage state of the reset node, and a start pulse and second control signal externally supplied thereto.

Growing community of inventors

Gyeongsangbuk-do, South Korea

Su-Hwan Moon