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US 2006/0125390 A1Published application
Organic light emitting display with auxiliary electrode line and method of fabricating the same
AssigneeSamsung Mobile Display Co., Ltd.
InventorSang-Hun Oh
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Abstract
Provided are an organic light emitting display (OLED) and a method of fabricating the same capable of improving product reliability by forming an auxiliary electrode line to be in contact with a second electrode power supply line to remove an organic layer on the auxiliary electrode line and minimize the organic layer on a pixel region, thereby preventing pixel shrinkage resulting from degradation of an organic emission layer caused by out-gassing from the organic layer.
Claims19
An organic light emitting display (OLED) comprising:
- a substrate;
- a thin film transistor formed on a pixel region of the substrate and having a semiconductor layer, a gate electrode, and source and drain electrodes;
- a first conductive pattern formed on a metal line region of the substrate at the same layer as the gate electrode;
- an insulating layer formed to expose a portion of the first conductive pattern;
- a passivation layer and/or a planarization layer formed on the thin film transistor, excluding the metal line region of the substrate;
- a second conductive pattern formed to be in contact with the first conductive pattern;
- a first electrode electrically connected with one of source and drain electrode;
- a pixel defining layer formed on the pixel region excluding the metal line region of the substrate and having an opening which exposes the first electrode;
- an organic layer formed on the exposed first electrode and including at least an organic emission layer;
- and
- a second electrode formed on the organic layer.
8 more elements
A method of fabricating an OLED, comprising:
- providing a substrate;
- forming a thin film transistor including a semiconductor layer, a gate electrode, and source and drain electrodes, on a pixel region of the substrate and a first conductive pattern at the same layer as a metal line region of the substrate when the gate electrode is formed;
- forming an insulating layer for exposing a portion of the first conductive pattern;
- forming a passivation layer and/or a planarization layer on the thin film transistor excluding the metal line region of the substrate using an etching process;
- forming a first electrode through a via-hole in the passivation layer and the planarization layer;
- forming a second conductive pattern to be in contact with the first conductive pattern when the first electrode is formed;
- forming a pixel defining layer having an opening which exposes the first electrode on the pixel region excluding the metal line region of the substrate;
- forming an organic layer including at least an organic emission layer on the exposed first electrode;
- and
- forming a second electrode on the organic layer.
7 more elements
Dependencies are inferred from the claim text.