Samsung Display Co., Ltd.

Kyung-Hoon Park

Sun Young Park

Yul-Kyu Lee

Jong-Hyun Park

Seong-Kweon Heo

Yeong-Ho Song

Chun-Gi You

Ji-Hoon Song

Jeong-Hwan Kim

Joon-Hoo Choi

Sang-Ho Moon

Won-Ho Jang

Joo-Hyeon Jo

An organic light-emitting display apparatus includes a pad electrode structure having excellent reliability due to the prevention of propagation of a crack to the pad electrode. The organic light-emitting display apparatus includes further an interlayer insulating layer on the pad electrode, a conductive barrier layer, and a planarization insulating layer. The interlayer insulating layer includes a plurality of openings that expose an upper surface of the pad electrode. The conductive barrier layer is on the plurality of openings and the interlayer insulating layer. The planarization insulating layer covers an edge of the conductive barrier layer. The planarization insulating layer is in the openings and covers an edge of the conductive barrier layer. An upper portion of the planarization insulating layer may be substantially planar with an upper portion of the conductive barrier layer on convex portions of the interlayer insulating layer.

Pad electrode structure and organic light-emitting display apparatus including the pad electrode structure

The organic light emitting display apparatus includes a substrate; a buffer film on the substrate, the buffer film including a via hole, a thin film transistor (TFT) on the buffer film, the TFT including an active layer, a gate electrode, a source electrode, and a drain electrode, a first electrode electrically connected to one of the source electrode and the drain electrode and corresponding to the via hole; an intermediate layer on the first electrode, the intermediate layer including an organic emission layer, and a second electrode on the intermediate layer.

Organic light emitting display apparatus and method of manufacturing the same

The organic light emitting display device includes a substrate including a thin film transistor (TFT) formed thereon, the TFT including a first insulating layer disposed between an active layer and a gate electrode, and a second insulating layer disposed between the gate electrode and source and drain electrodes; a pad electrode including a first pad layer disposed on a same layer as that where the source and drain electrodes are formed, and a second pad layer on the first pad layer; a bonding assistant layer on the substrate; a third insulating layer on the bonding assistant layer and including a first opening; a pixel electrode disposed in the first opening and electrically coupled to one of the source and drain electrodes; and a fourth insulating layer on the pixel electrode to cover a peripheral end portion of the pixel electrode and defining a pixel through a second opening.

Organic light-emitting display device

An organic light-emitting diode (OLED) display is disclosed. In one aspect, the OLED display includes a thin film transistor including an active layer, a gate electrode, a source electrode, and a drain electrode, a first insulating layer arranged between the active layer and the gate electrode, and a second insulating layer arranged between the gate, source, and drain electrodes. The OLED display also includes a third insulating layer covering the source and drain electrodes, wherein an opening is defined in each of the second and third insulating layers and wherein the openings substantially overlap. The OLED display further includes a pixel electrode formed in the openings defined in the second and third insulating layers and including a semi-permeable metal layer.

Organic light-emitting diode (OLED) display

An organic light-emitting display apparatus including: a substrate; at least one thin-film transistor disposed on the substrate; at least one capacitor disposed on the substrate and including a first electrode and a second electrode; a pixel electrode connected to the at least one thin-film transistor; a counter electrode facing the pixel electrode and including a reflective material; an organic emission layer disposed between the pixel electrode and the counter electrode; a first optical characteristic adjusting layer disposed between the substrate and the pixel electrode and formed on a same layer as the second electrode of the at least one capacitor; and a second optical characteristic adjusting layer disposed between the first optical characteristic adjusting layer and the pixel electrode.

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

Disclosed is an organic light emitting diode display including: a pixel unit including an organic light emitting diode for displaying an image; and a periphery surrounding the pixel unit. The periphery includes a gate common voltage line formed on the substrate and receiving a common voltage from an external circuit, an interlayer insulating layer covering the gate common voltage line and including a common voltage contact hole for exposing a part of the gate common voltage line, a data common voltage line formed on the interlayer insulating layer and contacting the gate common voltage line through the common voltage contact hole, and a plurality of protrusions provided in the common voltage contact hole and formed on the substrate.

Organic light emitting diode display

An organic light emitting display includes a substrate, a metal pattern on the substrate, the metal pattern directly contacting the substrate, and a thin film transistor including an active layer spaced apart from the metal pattern on the substrate, a gate electrode on the active layer, and a source electrode and a drain electrode on the gate electrode.

Organic light emitting display and method for manufacturing the same

Provided is an organic light-emitting display apparatus. The organic light-emitting display apparatus including: pixels arranged in a display region of a substrate and at intersections between scanning lines and data lines; a first initialization main line arranged along a first side of the display region of the substrate; a second initialization main line arranged along a second side of the display region of the substrate; an initialization power line electrically connected to the pixels and to the first initialization main line and the second initialization main line; and a first electrical connection portion comprising a doped semiconductor layer of which a first portion is connected to the first initialization main line and a second portion is connected to the initialization power line.

Organic light-emitting display apparatus

An organic light-emitting display apparatus includes a thin film transistor including an active layer, a gate electrode, source and drain electrodes, a first insulating layer between the active layer and the gate electrode, and a second insulating layer between the gate electrode and the source and drain electrodes, a third insulating layer covering the source and drain electrodes, the third insulating layer being an organic insulating layer, a pixel electrode including a semi-transparent metal layer and having an end located in a trench formed around the first insulating layer, a fourth insulating layer including an opening exposing a top surface of the pixel electrode, the fourth insulating layer being an organic insulating layer, an organic light-emitting layer on the pixel electrode, and a counter electrode on the organic light-emitting layer.

An organic light-emitting display apparatus in which electrical communication between an opposing electrode and an electrode power supply line can be more easily checked without adding an additional process in a manufacturing process, and a method of manufacturing the organic light-emitting display apparatus, is provided. The organic light-emitting display apparatus includes thin film transistors and pixel electrodes electrically connected to the thin film transistors in an active area of a substrate, an opposing electrode in the active area and a dead area of the substrate, an electrode power supply line in the dead area of the substrate and having a surface contacting the opposing electrode and configured to supply power to the opposing electrode, and a test line in the dead area of the substrate separated from the electrode power supply line and contacting the opposing electrode.

An OLED device includes a thin film transistor including an active layer, a gate bottom electrode, a gate top electrode, an insulating layer covering the gate electrode, and a source electrode and a drain electrode on the insulating layer contacting the active layer; an organic light-emitting device electrically connected to the thin film transistor and including a sequentially stacked pixel electrode, on the same layer as the gate bottom electrode, emissive layer, and, opposite electrode, a pad bottom electrode on the same layer as the gate bottom electrode and a pad top electrode pattern on the same layer as the gate top electrode, the pad top electrode pattern including openings exposing the pad bottom electrode, and an insulation pattern covering the upper surface of the pad top electrode pattern on the same layer as the insulating layer, on an upper surface of the pad bottom electrode.

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

An organic light-emitting display device includes a plurality of sub-pixels each comprising a light-emitting portion, a thin film transistor (TFT), and a capacitor, each of the sub-pixels emitting a different color, wherein the capacitor of at least one of the plurality of sub-pixels extends into at least one adjacent one of the sub-pixels.

Growing community of inventors

Yongin, South Korea

Kyung-Hoon Park