Lg Philips Lcd Co., Inc.

Lg Electronics Inc.

Lg Display Co., Ltd.

Samsung Electronics Co., Ltd.

Yong Min Ha

Byeong Koo Kim

Hun Jeoung

Jae Deok Park

Ju Cheon Yeo

Han Wook Hwang

Han Sang Lee

Hoon Ju Chung

Jeong Woo Jang

Seok Hee Jeong

Myung Ho Lee

Chang Yeon Kim

Sang Soo Han

Soon Kwang Hong

Jae-Deok Park

Dai Yun Lee

Sang Ho Kim

Jin Huh

Jung Chul Kim

Jae Ho Sim

Sang Young Yoon

Beom Jin Moon

Won Ki Ha

Jung Min Yoon

Sang Jae Bae

In Shik Kang

Na Young Kang

Won Ki H

A liquid crystal display device is discussed, which includes a first substrate and a second substrate, which face each other; a liquid crystal layer formed between the first substrate and the second substrate; and a column spacer formed between the first substrate and the second substrate, wherein the column spacer is formed within a light-shielding region on the first substrate or the second substrate, and a width of the light-shielding region in the periphery of the column spacer is greater than that of the light-shielding region where the column spacer is not formed. Since the width of the light-shielding region in the periphery of the column spacer is greater than that of the light-shielding region where the column spacer is not formed, even though an alignment film is damaged by the column spacer, light leakage can be prevented from occurring at the damaged portion.

Liquid crystal display device

A liquid crystal display (LCD) device having a first substrate and a second substrate with liquid crystal sealed therebetween, includes a plurality of gate lines and data lines crossing each other on the first substrate; a gate driving section for driving the gate lines; a source driving section for precharging the data lines for a first time and supplying video signals to the data lines; and a precharge circuit section for precharging the data lines for a second time.

Liquid crystal display device and method for driving the same

A mobile terminal and a method for searching for a home network for the mobile terminal are provided. The method includes performing a full scan for searching for the home network at a certain time after roaming to a visited network, initializing a count of a number of times a timer has expired when the home network is not found, initiating the timer, updating the count when the timer expires, scanning frequencies in a frequency list when the count is less than a certain value, and scanning all frequencies around the mobile terminal when the count is equal to the certain value.

Method and mobile terminal for searching home network

An LCD device, and a fabrication method thereof, having a high aperture ratio and a high optical transmittance that enhances a fabrication yield and reduces the number of masks required in a fabrication process are disclosed. The LCD device includes a first substrate and a second substrate; a gate line arranged on the first substrate in one direction and having a transparent conductive layer formed of a transparent conductive material at a lower portion thereof; a data line; a thin film transistor; a first electrode formed on the first substrate and formed on the same layer as the transparent conductive layer; a second electrode having a plurality of slits and formed on a different layer from the first electrode, wherein the second electrode generates a horizontal field with a parabolic shape on the first substrate with the first electrode; and a liquid crystal layer.

Method of fabricating a liquid crystal display device using a six mask process

An LCD is fabricated using a diffraction mask with transmissive, semi-transmissive, and opaque regions. The semi-transmissive region permits formation of a transmission, reflection, or pixel electrode, depending on the type of LCD being fabricated, using the same masking process as that to produce contact holes in an insulating film and a conductive layer. Photoresist exposed through the semi-transmissive region is partially removed during developing that completely removes photoresist in the transmissive or opaque region. The contact holes are formed in the region in which the photoresist is completely removed, the photoresist and underlying conductive layer in the semi-transmissive region are then removed, and the remaining photoresist is stripped.

Method for fabrication liquid crystal display device and diffraction mask therefor

A driving circuit of an organic light emitting display includes: a first PMOS transistor turned on in response to a driving signal to transfer a data signal; an OLED (organic light emitting diode) where an amount of light emitted is controlled by a control current; a second PMOS transistor for supplying the control current to the OLED; a third PMOS transistor connected to a node to which the first and second PMOS transistors are connected; a first capacitor connected between the first PMOS transistor and the third PMOS transistor; and a second capacitor connected between the second PMOS transistor and the first PMOS transistor.

Driving current of organic light emitting display and method of driving the same

A liquid crystal display driving method that is adapted to enhance a quality of picture to be displayed on a liquid crystal panel and prevents a distortion of picture. The liquid crystal display driving method drives a liquid crystal display device including a plurality of demultiplexers connected between a data driving circuit and data lines on a liquid crystal panel, and classifying color data signals to be applied to the respective demultiplexers data driver by colors and allowing the color data signals having a same color to be continuously supplied to the data lines by the demultiplexers prior to a different color signal having a different color.

Method of driving liquid crystal display

A liquid crystal display (LCD) device includes a control chip arranged on a print circuit board (PCB); a sampling switch array arranged on an LCD panel for applying video signals from the control chip to data lines of the LCD panel; and a switch controller for controlling the sampling switch array in accordance with control signals and the video signal applied from the control chip.

Liquid crystal display device and driving method thereof

An organic light-emitting diode display (OELD) device is presented that reduces the number of outputs of a data driver. The OELD device includes data and scan lines which cross each other. Pixel cells that contain organic electro-luminescence diodes are arranged in a matrix in pixel areas between the data lines and the scan lines. The pixel cells are arranged in different colors in a vertical direction and in the same color in a horizontal direction. A data driver supplies data to the data lines. A scan driver supplies a scan signal to the scan lines.

Organic light-emitting diode display device

A method for fabricating an in-plane switching LCD device includes forming a data line and a light-shielding layer on a substrate, forming a pixel electrode line and an active region with a polycrystalline silicon thin film, forming a first insulating layer on the substrate, forming a gate electrode and a common electrode line on the first insulating layer, forming a second insulating layer on the substrate, forming a first contact hole that exposes at least portions of the data line and the active region, and forming a connection electrode that connects at least portions of the exposed data line and the active region.

In plane switching mode liquid crystal display device

An apparatus for generating gamma voltage includes a plurality of gamma set generators and a gamma set selector. The gamma set generators generate a plurality of gamma voltage sets that include gamma voltages having different voltage levels from each other such that each gamma voltage set corresponds with a brightness mode. The gamma set selector selects any one of the gamma voltage sets in response to the brightness mode and drives data lines of a display device in accordance with the selected gamma voltage set.

Apparatus and method of generating gamma voltage

The present invention relates to a static electricity prevention type liquid crystal display panel for preventing static electricity flowing in through a pad part. A static electricity prevention type liquid crystal display panel according to an embodiment of the present invention includes a picture display part having a plurality of liquid crystal cells; a signal pad part applying a drive signal to be inputted to signal lines of the picture display part, and wherein the signal pad part includes a plurality of pads connected to the signal lines; and a static electricity prevention circuit having a thin film transistor with a floating gate for connecting the pad with a shorting bar by a static electricity flowing into the pad for the pad to form an equipotential with respect to the static electricity.

Liquid crystal display panel with static electricity prevention circuit

An aging circuit for an organic electro luminescence device includes a plurality of pixels arranged in a matrix at intersection areas of row lines and column lines and an aging circuit having at least one aging AC voltage source to apply a specific aging AC voltage pulse to the pixels.

Aging circuit for organic electro luminescence device and driving method thereof

A data driving circuit of an LCD device includes a timing controller for formatting input data so that data and gate drivers of an LCD panel display a picture image, and outputting a selection signal; a plurality of digital to analog converters for converting digital signals output from the timing controller to analog signals based on a color gray level displayed; and a plurality of amplifiers for amplifying the signals output from the respective digital to analog converters and outputting the amplified signals to the LCD panel.

Growing community of inventors

Kumi-shi, South Korea

Yong Min Ha