Lg Display Co., Ltd.

Byung-Sam Min

Do-Yeon Kim

Jong-Hyun Kim

Jin-Hwan Jeon

Seung-Hyun Kim

Jin-Woo Hong

Ja-Young Pyun

Dae-Heung Lee

Jong-Ho Lim

Hyun-Woo Jeon

Disclosed is a display device having a thin film transistor substrate, which may prevent afterimage and flicker defects by reducing the non-uniformity of an electric field. In the thin film transistor substrate, a pixel electrode includes a transparent edge electrode and a transparent inner electrode, which are spaced apart from each other with a first slit having a first width interposed therebetween, and a common electrode is exposed from the other-side end of the transparent edge electrode by a second width, which is smaller than the first width, in the width direction of a data line. As such, an inner area and an edge area in each sub pixel have uniform electric field distribution.

Thin film transistor substrate including slits between transparent electrodes

Thin film transistor substrate including multi-level transparent electrodes having slits

Thin film transistor substrate

A light source driving apparatus for implementing general purpose driving of a high-current light emitting diode (LED) and a low-current LED, and a method for driving the same are disclosed. The apparatus for driving the light source includes a plurality of light emitting diode (LED) strings, and a light emitting diode (LED) driving circuit for driving the LED strings, and having a plurality of channels commonly connected to the same LED string.

Apparatus and method of driving light source

An apparatus and method for driving a liquid crystal display (LCD) device is disclosed. The apparatus for driving a liquid crystal display (LCD) device includes a liquid crystal display (LCD) panel for receiving a video signal and a clock signal, and displaying them, a backlight for emitting light on the LCD panel, a timing controller for controlling the LCD panel and the backlight, a signal generator which has the same frequency as that of a horizontal synchronous signal by modulating the clock signal, and generates a signal synchronized with the horizontal synchronous signal, and an inverter which receives a signal from the signal generator, allows a driving frequency of the light source to be the same as that of the horizontal synchronous signal, and allows the received signal to be synchronized with the horizontal synchronous signal.

Apparatus and method for driving a liquid crystal display device for reducing ripple noise

The present disclosure relates to a liquid crystal display (LCD) device and, more particularly, to an LCD device capable of driving a light emitting diode (LED) provided to turn on a fluorescent lamp provided as a light source in darkness by using an induced voltage without employing a driving circuit to thus minimize a fabrication cost and power consumption. An LCD device according to the embodiment of the present invention, when the power voltage is applied to the power supply line to drive the fluorescent lamp, the LED is driven by the power voltage and, at the same time, the power voltage is supplied also to the fluorescent lamp. Thus, light emitted from the LED helps early turn on the fluorescent lamp when the fluorescent lamp is driven in darkness.

Liquid crystal display device

Growing community of inventors

Goyang-si, South Korea

Byung-Sam Min