Samsung Display Co., Ltd.

Soojung Chae

Seokhwan Bang

Jeongho Lee

Junho Song

Hyangyul Kim

Woogeun Lee

Sujin Lee

Sung-Hoon Lim

Jieun Lee

Seokje Seong

Jong-In Kim

Min-Chul Song

June Whan Choi

Sungman Kim

YoungJe Cho

Youngjae Jeon

Jeanho Song

Seungsok Son

Kangnam Kim

Hyunseong Kang

Jinseok Oh

Jiyun Hong

Kapsoo Yoon

Joongeol Kim

Jongin Kim

ManHong Na

Sunghoon Lim

Eugene Lee

Woobin Lee

A display apparatus includes a substrate including a display area and a peripheral area outside the display area, a thin film transistor arranged on the substrate corresponding to the display area and including a semiconductor layer and a gate electrode, a pad electrode arranged on the substrate corresponding to the peripheral area and including a material the same as that of the semiconductor layer, and a first insulating layer arranged on the thin film transistor and the pad electrode and including an opening that partially exposes the pad electrode. Accordingly, failure to perform a normal operation by a pixel circuit and a light-emitting element may be prevented.

Display apparatus with exposed pad electrode

A pixel circuit includes a first driving transistor including a gate electrode connected to a first node, a first electrode to receive a first power voltage, and a second electrode connected to a second node, a second driving transistor including a gate electrode and a second electrode connected to the second node, a first electrode to receive the first power voltage, and a back gate electrode connected to the first node, a write transistor including a first electrode to receive a data voltage and a second electrode connected to the first node, an initialization transistor including a gate electrode to receive an initialization gate signal, a first electrode to receive an initialization voltage, and a second electrode connected to the second node, a storage capacitor connected to the first and second nodes, and a light emitting element connected to the second node and configured to receive a second power voltage.

Pixel circuit and display device having the same

An organic light emitting diode display device includes a substrate, an active layer disposed on the substrate and including a metal oxide-based semiconductor, a gate electrode disposed on the active layer, an insulating layer disposed on the gate electrode, source and drain electrodes disposed on the insulating layer, a light emitting element on the source and drain electrodes, and a gate insulating layer between the active layer and the gate electrode. The gate insulating layer includes first and second gate insulating layers. The first gate insulating layer directly contacts the active layer and has a first amount of nitrogen. The second gate insulating layer is disposed on the first gate insulating layer and has a second amount of nitrogen that is different from the first amount of nitrogen.

Organic light emitting diode display device and method of manufacturing organic light emitting diode display device

A thin film transistor substrate includes: a substrate; an oxide semiconductor layer disposed on the substrate; a gate electrode disposed on the substrate; a gate insulating layer interposed between the oxide semiconductor layer and the gate electrode; and a source electrode and a drain electrode connected to the oxide semiconductor layer, the source electrode and the drain electrode being spaced apart from each other. The gate insulating layer includes: a first gate insulating layer having an oxygen content lower than that of a stoichiometric composition; and a second gate insulating layer including a material substantially the same as a material which the first gate insulating layer may include, and having an oxygen content higher than that of the first gate insulating layer, and the first gate insulating layer and the oxide semiconductor layer directly contact each other.

Thin film transistor substrate and manufacturing method thereof

A liquid crystal display apparatus includes a first substrate partitioned into a first region which displays an image and a second region through which external light passes, a second substrate facing the first substrate, a liquid crystal layer between the first substrate and the second substrate, a first polarizer on one side of the first substrate, and a second polarizer on one side of the second substrate, wherein at least one of the first polarizer and the second polarizer includes an opening positioned in the second region.

Liquid crystal display apparatus

A liquid crystal display includes a display substrate, in which a plurality of domains is defined, includes a pixel electrode disposed in each of the plurality of domains and configured to have a plurality of branch electrodes and a common electrode. A liquid crystal layer disposed between the display substrate and an opposite substrate. A plurality of domains is arranged in a column direction and a row direction. Each of the domains includes first and second sides, a first horizontal edge, and a second horizontal edge facing the first horizontal edge. The second side is parallel with the column direction and the first side is parallel with a first slanted direction. A slit is defined between adjacent branch electrodes. The slit has a first width adjacent to the first horizontal edge, and a second width adjacent to the second horizontal edge.

Liquid crystal display device having branch electrodes

A display device, having relatively high side visibility and transmittance, includes a first substrate having a plurality of red, green, and blue pixel regions; a lower electrode disposed on the red, green, and blue pixel regions; and an upper electrode disposed on the red, green, and blue pixel regions. The upper electrode is insulated from the lower electrode, and includes a plurality of upper branch electrodes disposed on the lower electrode. A width and height of the upper branch electrode in at least one of the red, green, and blue pixel regions are respectively different from a width and a height of the upper branch electrode in another of the red, green and blue pixel regions.

Display device

A display apparatus includes a plurality of first gate lines extended in a first direction and disposed on a substrate on which a plurality of pixels is disposed, a plurality of second gate line extended in a second direction to cross the first gate lines, a plurality of data lines disposed substantially parallel to the first gate lines, and a first insulating layer disposed between the first gate lines and the second gate lines and provided with a plurality of via holes to expose a portion of a corresponding first gate line of the first gate lines. Each of the first gate lines makes contact with a corresponding second gate line of the second gate lines through a corresponding via hole of the via holes.

Display apparatus and method of manufacturing the same

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Seoul, South Korea

Soojung Chae