Organic light-emitting display device and method of manufacturing the same
First Claim
Patent Images
1. An organic light-emitting display device comprising:
- a substrate having a pixel region, a transistor region, and a capacitor region;
pixel electrodes on the substrate;
gate electrodes on the pixel electrodes of the transistor region and the capacitor region, respectively;
a gate insulating film on the gate electrodes;
source/drain electrodes on the gate insulating film such that a recessed portion exposing a portion of the gate insulating film is located at a location corresponding to a central portion of the gate electrode of the transistor region;
an active layer in the recessed portion and having portions in contact with the source/drain electrodes of the transistor region, and an other portion in contact with the gate insulating film at an inner surface of the recessed portion; and
a passivation film on the active layer.
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Abstract
An organic light-emitting display device includes: a substrate having a transistor region and a thin-film transistor having a gate electrode, a source/drain electrode and an active layer sequentially formed on the transistor region, wherein a portion of the source/drain electrode is between the active layer and substrate.
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Citations
13 Claims
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1. An organic light-emitting display device comprising:
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a substrate having a pixel region, a transistor region, and a capacitor region; pixel electrodes on the substrate; gate electrodes on the pixel electrodes of the transistor region and the capacitor region, respectively; a gate insulating film on the gate electrodes; source/drain electrodes on the gate insulating film such that a recessed portion exposing a portion of the gate insulating film is located at a location corresponding to a central portion of the gate electrode of the transistor region; an active layer in the recessed portion and having portions in contact with the source/drain electrodes of the transistor region, and an other portion in contact with the gate insulating film at an inner surface of the recessed portion; and a passivation film on the active layer. - View Dependent Claims (2, 3, 4, 5)
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6. A method of manufacturing an organic light-emitting display device, the method comprising:
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forming gate electrodes and pixel electrodes on a substrate having a pixel region, a transistor region, and a capacitor region; forming a gate insulating film on the gate electrodes; forming source/drain electrodes on the gate insulating film; forming an active layer on the source/drain electrode of the transistor region; and forming a passivation film and a pixel defining layer, and then etching the passivation film and the pixel defining layer of the pixel region to expose the pixel electrode of the pixel region, wherein a portion of the source/drain electrode of the transistor region is between the active layer and the substrate. - View Dependent Claims (7)
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8. A method of manufacturing an organic light-emitting display device, the method comprising:
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forming gate electrodes and pixel electrodes on a substrate having a pixel region, a transistor region, and a capacitor region; forming a gate insulating film on the gate electrodes; forming source/drain electrodes on the gate insulating film; forming an active layer on the source/drain electrode of the transistor region; forming a passivation film and then etching the passivation film of the pixel region to expose the pixel electrode of the pixel region; and forming a pixel defining layer on the passivation film and then etching the pixel defining layer of the pixel region to expose the pixel electrode of the pixel region, wherein a portion of the source/drain electrodes of the transistor region is between the active layer and the substrate. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification