Samsung Display Co., Ltd.

Juwon Yoon

Jiseon Lee

Iljeong Lee

Choongyoul Im

Taehoon Yang

Sewan Son

Deukmyung Ji

Jinsung An

Jeongsoo Lee

Seongjun Lee

Wangwoo Lee

Pilsuk Lee

Minwoo Woo

Moosoon Ko

Sanghee Jang

Youngwoo Park

Jongchan Lee

Donghwan Kim

Woonghee Jeong

Heechul Jeon

Guanghai Jin

Junghun Noh

Kibum Kim

Jeonghyun Lee

The disclosure provides a pixel and a method of aging the pixel for reducing or preventing damage to a display element during aging of a driving transistor, the pixel including a display element including an anode and a cathode, a first transistor configured to control a magnitude of a driving current flowing to the display element in response to a gate-source voltage, the first transistor including a first gate electrode configured to function as a gate of the first transistor, a semiconductor layer, and a second gate electrode in a floating state between the first gate electrode and the semiconductor layer, and a second transistor configured to deliver a first voltage to the first transistor in response to a first scan signal.

Pixel and method of aging the pixel

A display apparatus includes a substrate including a display area in which a display element is arranged, a first thin-film transistor arranged in the display area and including a first semiconductor layer and a first gate electrode insulated from the first semiconductor layer, the first semiconductor layer including a silicon semiconductor, a first interlayer insulating layer covering the first gate electrode, a second thin-film transistor on the first interlayer insulating layer and including a second semiconductor layer and a second gate electrode insulated from the second semiconductor layer, the second semiconductor layer including an oxide semiconductor, and an upper electrode arranged on the first interlayer insulating layer and including a same material as that of the second semiconductor layer and at least overlapping the first gate electrode.

Display apparatus

An embodiment of the present disclosure comprises a display device including a substrate including a display area and a peripheral area around the display area, a thin-film transistor on the substrate in the display area and a display element electrically connected to the thin-film transistor, and a first voltage line and a second voltage line located on the substrate in the peripheral area and supplying power for driving the display element, wherein the first voltage line is a common voltage line and entirely surrounds the display area, the second voltage line is a driving voltage line and is arranged to correspond to one side of the display area, and the first voltage line and the second voltage line are on different layers.

Display device

An organic light-emitting display apparatus including an organic light-emitting diode emitting visible light, a driving thin film transistor driving the organic light-emitting diode, and a compensation thin film transistor. The compensation thin film transistor includes a compensation gate electrode, a compensation semiconductor layer, a compensation source electrode, and a compensation drain electrode. The compensation gate electrode includes a first gate electrode, and a second gate electrode electrically connected to the first gate electrode. The compensation drain electrode is electrically connected to the driving gate electrode of the driving thin film transistor. The compensation semiconductor layer includes a first semiconductor region overlapping the first gate electrode and a second semiconductor region overlapping the second gate electrode and disposed further from the compensation drain electrode than the first semiconductor region, and an area of the first semiconductor region is different than an area of the second semiconductor region.

Organic light-emitting display apparatus

A display apparatus includes a substrate, a first thin-film transistor including a first semiconductor layer on the substrate, and a first gate electrode on the first semiconductor layer, the first gate electrode being insulated from the first semiconductor layer by a first gate insulating layer, an organic interlayer insulating layer covering the first gate electrode, a first conductive layer on the organic interlayer insulating layer, a first contact hole exposing a top portion of the first semiconductor layer by penetrating through the organic interlayer insulating layer and the first gate insulating layer, and a first protruding portion protruding from a top surface of the substrate between the substrate and the first semiconductor layer, the first protruding portion corresponding to the first contact hole, wherein the first conductive layer contacts the first semiconductor layer through the first contact hole.

Display apparatus and method of manufacturing the same

A display device includes: a substrate; a plurality of light-emitting diodes above the substrate; a plurality of pixel circuits above the substrate and electrically connected to the plurality of light-emitting diodes; a scan line extending in a first direction above the substrate, where the scan line delivers a scan signal to the plurality of pixel circuits; and a scan driver between the substrate and the plurality of pixel circuits and providing the scan signal to the scan line. A distance between the scan driver and the substrate is less than a distance between the plurality of pixel circuits and the substrate.

An organic light-emitting diode (OLED) display is disclosed. In one aspect, the OLED display includes a substrate, an interlayer insulating layer arranged over the substrate and an OLED arranged over the interlayer insulating layer. The OLED display also includes a source electrode and a drain electrode arranged over the interlayer insulating layer and a via layer arranged over the interlayer insulating layer and having a via hole exposing the source electrode or the drain electrode. The interlayer insulating layer includes a projecting portion which projects toward the OLED in the via hole.

Organic light-emitting diode display

An organic light-emitting diode (OLED) display apparatus is provided. The OLED display apparatus includes a substrate, an initialization voltage line, a first thin film transistor (TFT) including an active layer. The initialization voltage line transmits an initialization voltage. The first thin film transistor (TFT) includes an active layer, a gate electrode, and an auxiliary gate electrode. The active layer is disposed on the substrate and includes a source region, a channel region, and a drain region. The gate electrode is disposed on the channel region. The auxiliary gate electrode is disposed on the gate electrode on a boundary between the channel region and the drain region. The voltage application electrode is disposed on the auxiliary gate electrode and is connected to the initialization voltage line and the auxiliary gate electrode.

Thin film transistor substrate and organic light-emitting diode display apparatus

An organic light-emitting display apparatus is provided. The apparatus includes an organic light-emitting diode emitting visible light, a driving thin film transistor driving the organic light-emitting diode, and a compensation thin film transistor. The compensation thin film transistor includes a compensation gate electrode, a compensation semiconductor layer, a compensation source electrode, and a compensation drain electrode. The compensation gate electrode includes a first gate electrode, and a second gate electrode electrically connected to the first gate electrode. The compensation drain electrode is electrically connected to the driving gate electrode of the driving thin film transistor. The compensation semiconductor layer includes a first semiconductor region overlapping the first gate electrode and a second semiconductor region overlapping the second gate electrode and disposed further from the compensation drain electrode than the first semiconductor region, and an area of the first semiconductor region is less than that of the second semiconductor region.

An OLED display and a method of manufacturing the same are disclosed. In one aspect, the display device includes a plurality of pixels, wherein each of the pixels includes a plurality of wires including a first wire extending in a first direction and a second wire extending in a second direction crossing the first direction, the second wire having top and bottom portions opposing each other. The pixels also include a plurality of switching TFTs electrically connected to the wires, a driving TFT configured to supply a driving current, a storage capacitor electrically connected to the wires and the driving TFT, and a connecting wire electrically connecting the driving TFT to a selected one of the switching TFTs, wherein the connecting wire has top and bottom portions opposing each other, and wherein at least the top portions of the connecting wire and the second wire are formed on different layers.

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

An organic light emitting display and a manufacturing method that prevents an open edge from occurring when forming an emission layer of an organic light emitting display in order to prevent a dielectric breakdown from occurring at the edge of an anode electrode. The organic light emitting display includes: a substrate; an active layer formed on the substrate; a planarization layer formed on the active layer; an anode electrode formed on the planarization layer; a pixel definition layer formed on the upper surface of the planarization layer to cover an edge of the anode electrode; and an organic thin film formed on the pixel definition layer, wherein the pixel definition layer includes a thick film portion and a step down portion that is formed to be stepped down at both ends of the thick film portion.

Growing community of inventors

Yongin-si, South Korea

Juwon Yoon