Samsung Display Co., Ltd.

Samsung Mobile Display Co., Ltd.

Dae-Hyun No

Choong-Youl Im

Do-Hyun Kwon

Il-Jeong Lee

Cheol-Ho Yu

Jong-Mo Yeo

Jong-Hyun Choi

June-Woo Lee

Gun-Shik Kim

Ju-Won Yoon

Soo-Beom Jo

Song-Yi Jeon

Gyoo-Chul Jo

Young-Dae Kim

Jin-Gyu Kang

Kyung-Jin Yoo

Sung-Won Doh

In-Young Jung

Jong-Hoon Son

A organic light emitting display device includes a thin film transistor (TFT) having a gate electrode, a source electrode and a drain electrode which are insulated from the gate electrode, and a semiconductor layer which is insulated from the gate electrode and which contacts each of the source electrode and the drain electrode; and a pixel electrode electrically connected to one of the source electrode and the drain electrode. The gate electrode is made up of a first conductive layer and a second conductive layer on the first conductive layer, and the pixel electrode is formed of the same material as the first conductive layer of the gate electrode on a same layer as the first conductive layer of the gate electrode.

Method of manufacturing an organic light emitting display device by patterning and formation of pixel and gate electrodes

An organic light-emitting display device and a method of its manufacture are provided, whereby manufacturing processes are simplified and display quality may be enhanced. The display device includes: an active layer of a thin film transistor (TFT), on a substrate and including a semiconducting material; a lower electrode of a capacitor, on the substrate, doped with ion impurities, and including a semiconducting material; a first insulating layer on the substrate to cover the active layer and the lower electrode; a gate electrode of the TFT, on the first insulating layer; a pixel electrode on the first insulating layer; an upper electrode of the capacitor, on the first insulating layer; source and drain electrodes of the TFT, electrically connected to the active layer; an organic layer on the pixel electrode and including an organic emission layer; and a counter electrode facing the pixel electrode, the organic layer between the counter electrode and the pixel electrode.

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

An organic light emitting diode display device and a method of manufacturing the same are disclosed. The organic light emitting diode display device includes a substrate having an emission section and a non-emission section, a semiconductor layer located on the substrate, a gate dielectric layer located over an entire front surface of the substrate, a gate electrode located in correspondence to the semiconductor layer, a dielectric layer located over the entire front surface of the substrate, source and drain electrodes and a first electrode located on the dielectric layer and electrically connected to the semiconductor layer, a pixel definition layer exposing a part of the first electrode, a spacer located on the pixel definition layer and located on the non-emission section of the substrate, an organic film layer located on the first electrode, and a second electrode located over the entire front surface of the substrate.

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

An organic light emitting display (OLED) apparatus and a method of manufacturing the same, the OLED apparatus including: a substrate; an active layer formed on the substrate; a gate electrode insulated from the active layer; source and drain electrodes insulated from the gate electrode and electrically connected to the active layer; a pixel defining layer formed on the source and drain electrodes, having an aperture to expose one of the source and drain electrodes; an intermediate layer formed in the aperture and comprising an organic light emitting layer; and a facing electrode which is formed on the intermediate layer. One of the source and drain electrodes has an extension that operates as a pixel electrode. The aperture exposes the extended portion. The intermediate layer is formed on the extended portion.

Organic light emitting display apparatus and method of manufacturing organic light emitting display apparatus

An organic light emitting diode display that includes a first electrode arranged on a substrate, an organic emission layer arranged on the first electrode and a second electrode arranged on the organic emission layer, the first electrode includes a first layer, a second layer and a third layer stacked sequentially on the organic emission layer, the second layer has a lower work function than the third. Here, the second layer has a higher work function than that of the third layer.

Organic light emitting diode display

An organic light-emitting display apparatus includes a planarization layer, a plurality of group electrode layers having different numbers of layers on the planarization layer and including a first group electrode layer having a metal layer, a reflective layer, a first transparent conductive layer, a second transparent conductive layer, and a third transparent conductive layer sequentially stacked, a second group electrode layer having the metal layer, the reflective layer, the first transparent conductive layer, and the third transparent conductive layer sequentially stacked, and a third group electrode layer having the metal layer, the reflective layer, and the first transparent conductive layer sequentially stacked, an intermediate layer on the first group electrode layer, the second group electrode layer, and the third group electrode layer, and including at least one organic light-emitting layer, and a second electrode layer on the intermediate layer.

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

A flat panel display apparatus that can be manufactured with less patterning operations using a mask, and a method of manufacturing the same, the flat panel display apparatus including a substrate; an active layer of a thin film transistor (TFT); a first bottom electrode and a first top electrode of a capacitor; a first insulation layer formed on the substrate; a gate bottom electrode and a gate top electrode corresponding to the channel region; a second bottom electrode and a second top electrode of the capacitor; a pixel bottom electrode and a pixel top electrode; a second insulation layer formed on the gate electrode, the second electrode of the capacitor, and the pixel top electrode; and a source electrode and a drain electrode formed on the second insulation layer.

Flat panel display apparatus and method of manufacturing the same

A thin film transistor (TFT) array arrangement, an organic light emitting display device that includes the TFT array arrangement and a method of making the TFT array arrangement and the organic light emitting display device. The method seeks to reduce the number of masks used in the making of the TFT array arrangement by employing half-tone masks that are followed by a two step etching process and by forming layers of the capacitor simultaneous with the formation of layers of the source, drain and pixel electrodes. As a result, individual layers of the capacitor are on the same level and are made of the same material as ones of the layers of the source, drain and pixel electrodes. The capacitor has three electrodes spaced apart by two separate dielectric layers to result in an increased capacity capacitor without increasing the size of the capacitor.

Thin film transistor array arrangement, and organic light emitting display device

In a method of fabricating organic light emitting diode display, a planarization layer is annealed, cured, provided with an ashing treatment, and surface-treated to reduce roughness of the planarization layer. Therefore, it is possible to improve reduce problems such as a decrease in reflectivity and variation of color coordinates of the organic light emitting diode display due to the roughness of the planarization layer.

Growing community of inventors

Yongin, South Korea

Dae-Hyun No