ORGANIC LIGHT EMITTING DISPLAY AND METHOD OF MANUFACTURING THE SAME
First Claim
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1. An organic light emitting display comprising:
- a substrate;
a gate electrode formed on the substrate;
a first insulating layer on the gate electrode;
an active layer comprising an oxide semiconductor material on the first insulating layer and the gate electrode;
a second insulating layer on the active layer;
source and drain electrodes on the second insulating layer coupled to the active layer;
a third insulating layer comprising an organic material on the source and drain electrodes and on the second insulator;
an anode electrode on the third insulating layer electrically coupled to the source or drain electrode;
a pixel defining layer on the anode electrode and the third insulator patterned so that the anode electrode in an emission region is exposed;
an organic light emitting layer formed on the exposed anode electrode; and
a cathode electrode formed on the organic light emitting layer,wherein the anode electrode does not overlap the active layer.
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Abstract
An organic light emitting display is disclosed. The display comprises a transistor with an active layer comprising an oxide semiconductor material. The oxide semiconductor material has conductivity suitable for the transistor because of a diffusion path allowing hydrogen to escape from the active layer.
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Citations
15 Claims
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1. An organic light emitting display comprising:
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a substrate; a gate electrode formed on the substrate; a first insulating layer on the gate electrode; an active layer comprising an oxide semiconductor material on the first insulating layer and the gate electrode; a second insulating layer on the active layer; source and drain electrodes on the second insulating layer coupled to the active layer; a third insulating layer comprising an organic material on the source and drain electrodes and on the second insulator; an anode electrode on the third insulating layer electrically coupled to the source or drain electrode; a pixel defining layer on the anode electrode and the third insulator patterned so that the anode electrode in an emission region is exposed; an organic light emitting layer formed on the exposed anode electrode; and a cathode electrode formed on the organic light emitting layer, wherein the anode electrode does not overlap the active layer. - View Dependent Claims (2, 3, 4)
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5. A method of manufacturing an organic light emitting display, the method comprising:
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forming a gate electrode on a substrate; forming a first insulating layer over the gate electrode; forming an active layer comprising an oxide semiconductor material on the first insulating layer and the gate electrode; forming a second insulating layer over the active layer; forming source and drain electrodes coupled to the active layer over the second insulating layer; forming a third insulating layer comprising an organic material over the source and drain electrodes; patterning the third insulating layer to expose the source or drain electrode; bathing the third insulating layer and the exposed source or drain electrode; forming a first electrode over the third insulating layer, the first electrode being coupled to the exposed source or drain electrode, wherein the first electrode does not to overlap the active layer; forming a pixel defining layer over third insulating layer and the first electrode, wherein the pixel defining layer exposes the first electrode in an emission region; forming an organic light emitting layer over the exposed first electrode; and forming a second electrode on the organic light emitting layer. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification