Samsung Display Co., Ltd.

Kapsoo Yoon

Jaehyun Lee

Woogeun Lee

Seulki Kim

Kwangsoo Lee

Seokhwan Bang

Seungrae Kim

Seungha Choi

Hyun Jung Kim

Jongmoo Huh

Youngjae Jeon

Soojung Chae

Hyunseong Kang

Seungsok Son

Jiyun Hong

Joongeol Kim

Jungkyoung Cho

Jongin Kim

Junewhan Choi

Kisu Jin

Donghoon Shin

Sunghoon Lim

Jongbum Choi

A display apparatus includes a substrate, a semiconductor layer on the substrate, the semiconductor layer including an oxide semiconductor, a channel region and a first region which extends from the channel region to a first edge of the semiconductor layer and has a lower resistance than that of the channel region, a first inorganic insulating layer covering the semiconductor layer and including a first contact hole which overlaps the first region, a first electrode on the first inorganic insulating layer, overlapping the first region and electrically connected to the first region through the first contact hole, a gate electrode on the first inorganic insulating layer and overlapping the channel region, a second inorganic insulating layer covering the first electrode and the gate electrode, and a display element on the second inorganic insulating layer.

Display apparatus and method of providing display apparatus

A display apparatus includes a substrate with a display area and a peripheral area surrounding the display area, a thin-film transistor disposed on the display area of the substrate, a pad unit disposed on the peripheral area of the substrate, a first insulating layer disposed on the display area of the substrate and exposing the pad unit, the first insulating layer including a first portion disposed on the thin-film transistor, a second portion, and a third portion between the first portion and the second portion, and a light-emitting device disposed on the first portion of the first insulating layer and electrically connected to the thin-film transistor. A top surface of the first insulating layer includes a first top surface of the first portion, a second top surface of the second portion, and a connecting surface of the third portion. The first top surface of the first portion is higher than the second top surface of the second portion. The connecting surface connects the first top surface and the second top surface with each other and is sloped.

Display apparatus and method of manufacturing the same

A display apparatus includes a substrate including a display area and a peripheral area adjacent to the display area, a thin-film transistor located in the display area of the substrate and including a semiconductor layer and a gate electrode overlapping a channel region of the semiconductor layer, a conductive layer disposed between the substrate and the semiconductor layer and including a first electrode located in the display area of the substrate and a pad electrode located in the peripheral area of the substrate, and a first insulating layer disposed between the conductive layer and the semiconductor layer and having a first opening that exposes at least a portion of an upper surface of the pad electrode.

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

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Seoul, South Korea

Kapsoo Yoon