ORGANIC LIGHT-EMITTING DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME
First Claim
1. An organic light-emitting display device comprising:
- a capacitor lower electrode formed on a substrate, at the same level as an active layer of a thin film transistor, and comprising a semiconductor material doped with ion impurities;
a first insulating layer formed on the substrate, covering the active layer and the capacitor lower electrode;
a gate electrode of the thin film transistor formed on the first insulating layer and comprising a gate lower electrode formed of a transparent conductive material and a gate upper electrode formed of metal;
a pixel electrode formed on the first insulating layer, electrically connected to the thin film transistor, and formed of a transparent conductive material;
a capacitor upper electrode disposed at the same level as the pixel electrode and formed of a transparent conductive material;
an etch block layer formed between the first insulating layer and the capacitor upper electrode and formed of a transparent conductive material;
source and drain electrodes of the thin film transistor electrically connected to the active layer;
a second insulating layer formed between the first insulating layer and the source and drain electrodes and having an opening completely exposing the capacitor upper electrode;
a third insulating layer formed on the second insulating layer and exposing the pixel electrode; and
an intermediate layer disposed on the pixel electrode and comprising an emissive layer; and
an opposite electrode disposed facing the pixel electrode with the intermediate layer therebetween.
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Accused Products
Abstract
An organic light-emitting display device includes a capacitor lower electrode that includes a semiconductor material doped with ion impurities. A first insulating layer covers an active layer and the capacitor lower electrode. A gate electrode includes a gate lower electrode formed of a transparent conductive material and a gate upper electrode formed of metal. A pixel electrode is electrically connected to the thin film transistor. A capacitor upper electrode is at the same level as the pixel electrode. An etch block layer is formed between the first insulating layer and the capacitor upper electrode. Source and drain electrodes are electrically connected to the active layer. A second insulating layer has an opening completely exposing the capacitor upper electrode. A third insulating layer exposes the pixel electrode. An intermediate layer includes an emissive layer. An opposite electrode faces the pixel electrode.
32 Citations
25 Claims
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1. An organic light-emitting display device comprising:
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a capacitor lower electrode formed on a substrate, at the same level as an active layer of a thin film transistor, and comprising a semiconductor material doped with ion impurities; a first insulating layer formed on the substrate, covering the active layer and the capacitor lower electrode; a gate electrode of the thin film transistor formed on the first insulating layer and comprising a gate lower electrode formed of a transparent conductive material and a gate upper electrode formed of metal; a pixel electrode formed on the first insulating layer, electrically connected to the thin film transistor, and formed of a transparent conductive material; a capacitor upper electrode disposed at the same level as the pixel electrode and formed of a transparent conductive material; an etch block layer formed between the first insulating layer and the capacitor upper electrode and formed of a transparent conductive material; source and drain electrodes of the thin film transistor electrically connected to the active layer; a second insulating layer formed between the first insulating layer and the source and drain electrodes and having an opening completely exposing the capacitor upper electrode; a third insulating layer formed on the second insulating layer and exposing the pixel electrode; and an intermediate layer disposed on the pixel electrode and comprising an emissive layer; and an opposite electrode disposed facing the pixel electrode with the intermediate layer therebetween. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of manufacturing an organic light-emitting display device, the method comprising:
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forming a semiconductor layer on a substrate and patterning the semiconductor layer to form an active layer and a capacitor lower electrode of a thin film transistor; forming a first insulating layer covering the active layer and the capacitor lower electrode on the substrate, and depositing and patterning a transparent conductive material on the first insulating layer to form an etch block layer; sequentially depositing a transparent conductive material and a first metal covering the etch block layer on the first insulating layer and patterning the transparent conductive material and the first metal to form a pixel electrode pattern, and a gate electrode of the thin film transistor, and a capacitor upper electrode pattern simultaneously, each of which comprises the transparent conductive material and the first metal are sequentially deposited; forming a second insulating layer covering the pixel electrode pattern, the gate electrode, and the capacitor upper electrode pattern on the first insulating layer, patterning the first insulating layer and the second insulating layer to form contact holes exposing an edge of the active layer, and patterning the second insulating layer to form openings that completely expose the capacitor upper electrode pattern and expose the pixel electrode pattern; depositing a second metal on the second insulating layer, patterning the second metal to form source and drain electrodes electrically connected to the active layer, and removing the first metal to form a pixel electrode and a capacitor upper electrode; and forming a third insulating layer covering the pixel electrode and an opening exposing the pixel electrode in the second insulating layer. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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24. A method of manufacturing an organic light-emitting display device, the method comprising:
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forming a semiconductor layer on a substrate and patterning the semiconductor layer to form an active layer and a capacitor lower electrode of a thin film transistor; forming a first insulating layer covering the active layer and the capacitor lower electrode on the substrate, and depositing and patterning a transparent conductive material on the first insulating layer to form an etch block layer and a pixel electrode; sequentially depositing a transparent conductive material and a first metal covering the etch block layer and the pixel electrode on the first insulating layer and patterning the transparent conductive material and the first metal to form a gate electrode of the thin film transistor and a capacitor upper electrode pattern simultaneously, each of which comprises the transparent conductive material and the first metal are sequentially deposited; forming a second insulating layer covering the gate electrode and the capacitor upper electrode pattern on the first insulating layer, patterning the first insulating layer and the second insulating layer to form contact holes exposing an edge of the active layer and an opening exposing the pixel electrode, and patterning the second insulating layer to form an opening that completely exposes the capacitor upper electrode pattern; depositing a second metal on the second insulating layer, patterning the second metal to form source and drain electrodes electrically connected to the active layer, and removing the first metal to form a capacitor upper electrode; and forming a third insulating layer covering the pixel electrode and an opening exposing the pixel electrode in the second insulating layer. - View Dependent Claims (25)
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Specification