Lg Display Co., Ltd.

KilHwan Oh

Jongsik Shim

Kihyung Lee

SeongHwan Hwang

Hunki Shin

Eunji Park

Changhee Kim

A display device is disclosed. The display device according to an exemplary embodiment of the present disclosure includes: a substrate including an active area and a non-active area; an active layer, a thin film transistor including a gate electrode, a source electrode, and a drain electrode disposed on the substrate; and an organic light emitting diode including an anode which is electrically connected to the thin film transistor, in which the gate electrode, the source electrode, and the drain electrode are formed of a first conductive layer and a second conductive layer on the first conductive layer and the anode is formed of the same material as the first conductive layer. Therefore, the anode and the first conductive layer of the drain electrode are integrally connected so that a separate contact hole for electrically connecting the anode and the drain electrode is not necessary and the structure may be simplified.

Display device

The present disclosure relates to a large area ultra high density flat panel display having a high aperture ratio. The present disclosure provides a flat panel display including a driving current line and a sensing line disposed in a first direction on a substrate; a scan line and a sensing gate line disposed in a second direction on the substrate; a horizontal current line disposed at upper side of the scan line in the second direction and connected to the driving current line; a horizontal sensing line disposed at lower side of the sensing gate line in the second direction and connected to the sensing line; a common current line branched from the horizontal current line and crossing the scan line; and a first pixel area and a second pixel area disposed between the driving current line and the sensing line as having a bi-symmetric shape with each other based on the common current line.

Large area ultra high density flat display having high aperture ratio

A method for sensing degradation of an organic light emitting display includes an initialization step for applying a sensing data voltage to a gate node of a driving TFT and applying an initialization voltage to a source node of the driving TFT, a boosting step for floating the gate node and the source node of the driving TFT and applying a drain-to-source current of the driving TFT to an organic element, a sensing step for again applying the initialization voltage to the source node of the driving TFT, setting a gate-to-source voltage of the driving TFT depending on a degradation degree of the organic element, and storing the drain-to-source current of the driving TFT determined by the set gate-to-source voltage in a line capacitor, and a sampling step for outputting a voltage stored in the line capacitor as a sensing voltage.

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Seoul, South Korea

KilHwan Oh