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US 8,575,605 B2Granted
Organic light-emitting display device and method of manufacturing the same
AssigneeSamsung Display Co., Ltd.
InventorSeong-Kweon Heo
Life of this patent
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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.
Claims13
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.
5 more elements
A method of manufacturing an organic light-emitting display device, the method comprising:
- 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.
4 more elements
A method of manufacturing an organic light-emitting display device, the method comprising:
- 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.
5 more elements
Dependencies are inferred from the claim text.