Lg Display Co., Ltd.

Lg Philips Lcd Co., Inc.

Kwang Soon Park

Soo Young Yoon

Min Doo Chun

Sung Il Park

Sang Moo Song

Keuk Sang Kwon

Seung Kyu Choi

Choel Min Woo

Tae Man Kim

Tae Woong Moon

Hong Jae Kim

Cheol Se Kim

Chul Woo Im

A color filter substrate includes a first color filter layer on a substrate, and a second color filter layer on the substrate, the first color filter layer having a thickness different from a thickness of the second color filter layer.

Color filter substrate and method of fabricating the same

Disclosed herein is an LCD device having a drive area directly formed inside a non-pixel area of a substrate without an additional drive IC. The LCD device includes a first substrate having a pixel area and a non-pixel area disposed peripherally to the pixel area. The pixel area has a thin film transistor and a pixel electrode in each sub-pixel defined by gate and data lines crossing each other. A second substrate formed in opposition to the first substrate includes a color filter layer and a black matrix layer. A liquid crystal layer is formed between the first and second substrates. An opening in the black matrix layer reveals an alignment mark, which is disposed on at least one of the first substrate and the second substrate.

Liquid crystal display device

A method and apparatus of driving a liquid crystal display device is disclosed in the present invention. The liquid crystal display device includes a plurality of data lines, a plurality of gate lines crossing the data lines, a plurality of first liquid crystal cells on a first side of the data lines, a plurality of second liquid crystal cells on a second side of the data lines, a first switching part in each of the first liquid crystal cells and controlled by the igate line and the (i+2)gate line (wherein i is a natural number), and a second switching part in each of the second liquid crystal cells and controlled by the igate line.

Method and apparatus of driving liquid crystal display device

A line-on-glass (LOG) type liquid crystal display device prevents deterioration in picture quality due to line resistances in LOG signal lines includes a display area having liquid crystal cells arranged at crossings of gate and data lines, a storage capacitor arranged within each of the liquid crystal cells for maintaining charged pixel voltages, and a dummy gate line. A line-on-glass type signal line group outside the display area transmits driving signals to the gate driver integrated circuits for driving the gate lines. A first signal line outside the display area is mounted on gate tape carrier packages. A second signal line connects the first gate low voltage and dummy lines, is insulated from, and crosses the gate lines outside the display area. A third signal line connects the first gate low voltage line and the dummy gate line to connect the first and second gate low voltage lines in parallel.

Liquid crystal display of line-on-glass type

A gate driver for a display device includes a plurality of shift registers to sequentially generate output signals during a frame period in response to multi-phase clocks; and a dummy clock provided to the plurality of shift registers during a vertical blank time to reduce a stress voltage in the shift registers, wherein an output of each of the shift registers is reset to a low state power supply voltage by an output signal of the next shift register.

Gate driver for a display device and method of driving the same

A liquid crystal display device includes: a gate driver for sequentially applying a gate signal to a gate line for a horizontal line; a control signal supplier for applying a clock-shaped control signal to a control line provided in parallel to the gate line for the horizontal line; a data driver for applying a video signal to a data line provided in a direction crossing the gate line; a first liquid crystal cell provided at one side of the data line to receive said video signal under control of said gate signal and said control signal; and a second liquid crystal cell provided at an other side of the data line to receive said video signal under control of said gate signal.

Liquid crystal display device and driving method thereof

A liquid crystal display device for minimizing the number of data lines and reducing a line resistance is disclosed. In the device, liquid crystal cells are provided at intersections between gate lines and data lines. At least one thin film transistor is provided at each liquid crystal cell to drive the liquid crystal cells. A source protrusion is provided at an ith horizontal line (wherein i is an integer) and is extended from any one of the thin film transistors. The source protrusion is connected, via at least one gate line, an other horizontal gate line excluding the ith horizontal line. A gate protrusion is extended from the other horizontal gate line in such a manner to be connected with the source protrusion.

An apparatus and method of driving a liquid crystal display device are disclosed in the present invention. The liquid crystal display device includes a plurality of data lines in a first direction, a plurality of gate lines in a second direction to cross the data lines, a plurality of first liquid crystal cells on a first side with respect to the data lines, a plurality of second liquid crystal cells on a second side with respect to the data lines, a first switching part in each first liquid crystal cell and controlled by a current gate line and a next gate line, and a second switching part in each second liquid crystal cell and controlled by the current gate line and a previous gate line.

Apparatus and method of driving liquid crystal display device

An apparatus and method for driving a liquid crystal display device are disclosed in the present invention. The liquid crystal display device includes a plurality of data lines in a vertical direction, a plurality of gate lines in a horizontal direction to cross the data lines, and a plurality of liquid crystal cells along with each gate line, wherein one of the data lines applies a video signal to at least three liquid crystal cells.

Apparatus and method for driving liquid crystal display device

A liquid crystal display device and a driving method thereof are disclosed in the present invention. The liquid crystal display device includes a plurality of data lines, a plurality of gate lines crossing the data lines, a first liquid crystal cell on a first side of the data lines, a second liquid crystal cell on a second side of the data lines, a first switching part applying a first video signal supplied to the data lines to the first liquid crystal cell, a second switching part applying a second video signal supplied to the data lines to the second liquid crystal cell, and a voltage dropping device in the second switching part charging a voltage in the first liquid crystal cell the same as the second liquid crystal cell, when the same video signal is applied to the first liquid crystal cell and the second liquid crystal cell.

A line-on-glass (LOG)-type liquid crystal display device includes a picture display area having liquid crystal cells arranged where gate lines and data lines cross each other, a storage capacitor provided at each of the liquid crystal cells to maintain a charged pixel voltage, and a dummy gate line. (LOG)-type signal lines are provided by a line-on-glass technique outside a picture display area and transmit driving signals required by gate driver integrated circuits to drive the gate lines. The dummy gate line has a smaller resistance value than others of the gate lines.

Growing community of inventors

Daegu-kwangyokshi, South Korea

Kwang Soon Park