ORGANIC LIGHT-EMITTING DISPLAY APPARATUS AND METHOD OF MANUFACTURING THE SAME
First Claim
1. An organic light-emitting display apparatus, comprising:
- a light-emitting region including an organic light-emitting element, a thin-film transistor (TFT), and a capacitor; and
a non-light-emitting region including a pad region connected to wiring of the light-emitting region;
wherein the pad region comprises;
a protrusion layer including a plurality of protrusion portions formed on a substrate so as to protrude;
a pad electrode including a pad lower electrode and a pad upper electrode, the pad lower electrode comprising a protrusion portion formed along a protrusion outline of the protrusion layer and a flat portion formed along the substrate, the pad upper electrode being formed on the flat portion of the pad lower electrode;
a source/drain electrode layer formed on the pad upper electrode;
an organic layer formed on the source/drain electrode layer; and
a counter electrode layer formed on the protrusion portion of the pad lower electrode and on the organic layer, the counter electrode layer following the protruding outline of the protrusion layer on the protrusion portion.
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Accused Products
Abstract
In an organic light-emitting display apparatus and a method of manufacturing the same, a pad region of the organic light-emitting display apparatus comprises a protrusion layer including a plurality of protrusion portions formed on a substrate so as to protrude, a pad lower electrode and a pad upper electrode, the pad lower electrode including a protrusion portion formed along a protrusion outline of the protrusion layer and a flat portion formed along the substrate, and the pad upper electrode being formed on the flat portion of the pad lower electrode. A source/drain electrode layer is formed on the pad upper electrode, an organic layer is formed on the source/drain electrode layer, and a counter electrode layer is formed on the protrusion portion of the pad lower electrode and the organic layer. The counter electrode layer follows the protrusion outline of the protrusion layer on the protrusion portion. According to such a structure, cost is reduced due to a reduction in the number of masks, the manufacturing process is simplified, and a lifting phenomenon of the organic layer in the pad region is solved.
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Citations
14 Claims
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1. An organic light-emitting display apparatus, comprising:
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a light-emitting region including an organic light-emitting element, a thin-film transistor (TFT), and a capacitor; and a non-light-emitting region including a pad region connected to wiring of the light-emitting region; wherein the pad region comprises; a protrusion layer including a plurality of protrusion portions formed on a substrate so as to protrude; a pad electrode including a pad lower electrode and a pad upper electrode, the pad lower electrode comprising a protrusion portion formed along a protrusion outline of the protrusion layer and a flat portion formed along the substrate, the pad upper electrode being formed on the flat portion of the pad lower electrode; a source/drain electrode layer formed on the pad upper electrode; an organic layer formed on the source/drain electrode layer; and a counter electrode layer formed on the protrusion portion of the pad lower electrode and on the organic layer, the counter electrode layer following the protruding outline of the protrusion layer on the protrusion portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of manufacturing an organic light-emitting display apparatus, the method comprising the steps of:
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forming an active layer of a thin-film transistor (TFT), a capacitor lower electrode of a capacitor, and a protrusion layer of a pad region on a substrate; forming a gate electrode of the TFT on the active layer, a pixel electrode of an organic light-emitting element on the substrate, a capacitor upper electrode of the capacitor on the capacitor lower electrode, and a pad electrode of the pad region on the protrusion layer; forming an interlayer insulating layer which includes openings for exposing portions of the active layer, the pixel electrode and the capacitor upper electrode, respectively, the interlayer insulating layer being formed on the pad electrode of the pad region; and forming source/drain electrodes of the TFT contacting the exposed portions of the active layer and the pixel electrode, and forming a source/drain electrode layer of the pad region on the pad electrode and the interlayer insulating layer; forming an organic layer which exposes a portion of the pixel electrode and which covers the source/drain electrodes of the TFT, the capacitor upper electrode of the capacitor, and the source/drain electrode layer of the pad region; forming a light-emitting layer contacting the exposed portion of the pixel electrode; and forming a counter electrode on the organic layer so as to face the pixel electrode with the light-emitting layer interposed between the counter electrode and the pixel electrode, and forming a counter electrode layer along a protrusion outline of the protrusion layer in the pad region. - View Dependent Claims (10, 11, 12, 13, 14)
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Specification