Lg Display Co., Ltd.

Bu Yeol Lee

Jae Sung Yu

Binn Kim

Juhn Suk Yoo

Hyoung-Su Kim

In Hyuk Song

Deuk Su Lee

Namwook Cho

Sang Hee Yu

Jin-Hyun Jung

Eui Tae Kim

Sanghyeon Kwak

So Haeng Cho

Kyung Eon Lee

Aram Shin

Hyun Jim Kim

Provided is a display device. A poly-Si layer is disposed on a substrate. A first metal layer is disposed on the poly-Si layer, and a metal oxide layer is disposed on the first metal layer. A second metal layer is disposed on the metal oxide layer. The first metal layer is overlapped with the second metal layer. The first metal layer and the second metal layer may be gate lines connected to different TFTs.

Display device having LTPS and oxide TFTs integrated on the same substrate

Disclosed is an OLED display device. The OLED display device includes a metal line and a thin film transistor that are formed on a substrate, a first insulating layer formed on the metal line and the thin film transistor, a storage electrode formed on the first insulating layer, and connected to the metal line, a second insulating layer formed on the storage electrode, and an anode electrode formed on the second insulating layer to be connected to the thin film transistor and overlapping the storage electrode with the second insulating layer therebetween.

Organic light emitting diode display device and method of manufacturing the same

Disclosed is a pixel circuit which facilitates to compensate a threshold voltage of a driving transistor for controlling an operation state of a light emitting device, and a method for driving thereof and an organic light emitting display device using the same, wherein the pixel circuit includes a light emitting device including an organic light emitting cell; a driving transistor which controls an operation of the light emitting device according to a voltage applied between gate and source terminals; a capacitor including first and second terminals; a switching unit which initializes the capacitor during a current horizontal period, stores a sampling voltage in the capacitor, and makes the light emitting device emit light on the basis of the sampling voltage stored in the capacitor whenever the data voltage and reference voltage are supplied to the data line after the current horizontal period.

Pixel circuit and method for driving thereof, and organic light emitting display device using the same

An organic light emitting display device includes: a plurality of pixel regions. Each of the pixel regions includes: a first transistor configured to apply a data voltage on a first adjacent data line to a first node in response to a scan signal on the primary scan line; a second transistor configured to apply the data voltage on the first adjacent data line to the first node in response to a sensing signal on the secondary scan line; and a third transistor configured to detect a sensing voltage and apply the sensing voltage to a second adjacent data line, The data driver compares the sensing voltage and the data voltage and compensates for the data voltage of next frame, and the scan signal and the sensing signal are generated in different intervals of a single frame.

Organic light emitting display device

A Liquid Crystal Display (LCD) device includes a liquid crystal panel in which a plurality of common electrodes are formed; an interred touch sensor for applying a common voltage to the common electrodes, and detecting a touch point of the liquid crystal panel with a capacitance that is induced in the common electrodes; a plurality of common electrode lines for connecting the common electrodes to the touch sensor; and an equivalent potential unit formed in the common electrode lines, and discharging residual electric charges of the common electrodes.

Liquid crystal display device with interred touch screen

A liquid crystal display and a driving method thereof having a plurality of common electrodes to which a common voltage is independently applied, and divided into more than two portions to change a potential of a common voltage into divided common electrode units, and reducing amplitude of a scanning pulse to prevent a deterioration of a display quality by a feed through voltage.

Liquid crystal display and driving method thereof

A liquid crystal display device having optical sensors, for sensing a touch, embedded in a liquid crystal panel to improve touch sensitivity is disclosed. The liquid crystal display device includes pixel regions spaced from each other on a first substrate, gate lines formed to separate the pixel regions in a first direction, driving voltage lines parallel to the gate lines, data lines formed between the pixel regions in a second direction intersecting the first direction, storage lines parallel to the driving voltage lines, read-out lines separated from neighboring data lines by one pixel region in the second direction, display transistors formed at intersections of the gate and data lines, pixel electrodes formed in the pixel regions, output switching transistors formed between the gate and read-out lines, capacitors formed between the output switching transistors and storage lines, and photo sensing transistors formed on the output switching transistors and storage lines.

Liquid crystal display device

A reference voltage generating circuit for an LCD device includes a main pumping section, a sub-pumping section, an input section inputting a level designating signal periodically and alternately designating a first reference level and a second reference level, and a control section alternately comparing an output voltage with the first and second reference levels in response to the level designating signal, wherein the control section outputs a first logic level and the main pumping section selectively lowers the output voltage in a fast negative pumping and the sub-pumping section selectively raises the output voltage in a slower positive pumping.

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Goyang-si, South Korea

Bu Yeol Lee