Lg Display Co., Ltd.

Lg Philips Lcd Co., Inc.

Hong Chul Kim

Suk Won Choi

Hee Jung Hong

Hee Jeong Park

Eui Yeol Oh

A display device with integrated touch panel is provided. The display device includes a panel in which a plurality of pixels defined by intersections between a plurality of data lines and a plurality of gate lines are formed, a touch panel provided as one body with the panel, and configured to include a plurality of touch electrodes, a display driver IC configured to control the data lines and the gate lines formed in the panel, supply a common voltage or a touch pulse to the plurality of touch electrodes, receive analog sensing signals from the touch panel, and convert the analog sensing signals into digital sensing signals, and a touch IC configured to receive the digital sensing signals from the display driver IC, and analyze the digital sensing signals by using an analysis program based on a self-capacitance type to determine whether the touch panel is touched.

Display device with integrated touch panel and driving method thereof

A liquid crystal display and a driving method thereof are provided. The liquid crystal display comprises a liquid crystal panel; a gate driver; a data driver; a timing controller supplying a control signal of the gate driver and a control signal of the data driver and supplying a brightness variable signal depending on an average of gray levels of image data; and a backlight unit adjusting a brightness level of the lamp in response to a plurality of brightness variable signals, wherein the timing controller divides the liquid crystal panel into a first division area, which displays image data, equal to or smaller than an average of reference gray levels and dispersion of reference gray levels and a second division area comprising areas other than the first division area by calculating an average and dispersion of gray levels of the image data with a line unit, and supplies a first brightness variable signal adjusting a brightness level of the first division area and a second brightness variable signal adjusting a brightness level of the second division area.

Liquid crystal display capable of adjusting brightness level in each of plural division areas and method of driving the same

An aligning method of a ferroelectric liquid crystal display includes; disposing a first mask and a second mask, each of which has opening regions and blocking regions arranged in alternating fashion in vertical direction and horizontal direction corresponding to liquid crystal cells of the liquid crystal display; and injecting a ferroelectric liquid crystal material within the liquid crystal panel.

Aligning method of ferroelectric liquid crystal display and ferroelectric liquid crystal display apparatus using the same

An apparatus and method for driving a light source of a liquid crystal display device are provided. The apparatus includes a liquid crystal display panel, a backlight unit including a plurality of light emitting diodes (LEDs) to irradiating light to the liquid crystal display panel, and a driver to selectively drive the LEDs and selectively control a brightness of light generated by the LEDs.

Apparatus and method for driving liquid crystal display device

A ferroelectric liquid crystal display and method of driving the same according to an impulse-type method improves a voltage holding ratio. The ferroelectric liquid crystal display and method of driving the same applies a scan pulse at least twice to each gate line of a liquid crystal display panel injected with ferroelectric liquid crystal material during one frame period of the liquid crystal display panel. Data voltages are applied to data lines of liquid crystal display panel in synchrony with the scan pulse.

Ferroelectric liquid crystal display and method of driving the same

A liquid crystal display includes a liquid crystal injected between upper and lower plates, wherein the upper and lower plates have electrodes respectively formed thereon, an upper alignment film formed on the upper plate and a lower alignment film formed on the lower plate, wherein only one of the alignment films on the upper plate and the lower plate is aligned in to determine an incipient alignment direction of the liquid crystal.

Liquid crystal display and fabricating method thereof

An electric field alignment method of liquid crystal display including the steps of: applying a first voltage to a gate terminal of a thin film transistor for driving a liquid crystal cell having ferroelectric liquid crystal, wherein the first voltage is below a threshold voltage of the thin film transistor; and supplying a second voltage for electric field alignment of the ferroelectric liquid crystal to the liquid crystal cell by using leakage current of the thin film transistor generated due to the first voltage.

Aligning method under electric field of ferroelectric liquid crystal and liquid crystal display using the same

A method of aligning a ferroelectric liquid crystal (FLC) material capable of facilitating the restoration of an initial alignment of FLC material as a result of mounting of driving circuits includes simultaneously applying a first voltage to a Vcom terminal formed on a source printed circuit board and applying a second voltage to a GND terminal also formed on the source printed circuit board while the first voltage is also applied to a Vcom terminal formed on a gate printed circuit board and while the second voltage is also applied to a GND terminal formed on the gate printed circuit board.

Aligning method under electric field for ferroelectric liquid crystal and liquid crystal display using the same

A method of aligning Half V-Switching Mode ferroelectric liquid crystal material in the presence of an applied electric field, a driving method, and an apparatus for driving a ferroelectric liquid crystal display using the same has a high response speed characteristics and a wide viewing angle characteristics. The liquid crystal material has a small capacitance, C, and is driven according to a double frequency column inversion driving method operating at about 120 Hz to display a picture.

Growing community of inventors

Kyounggi-do, South Korea

Hong Chul Kim