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US 2012/0056184 A1Published application
Organic light-emitting display apparatus and method of manufacturing the same
AssigneeSamsung Display Co., Ltd.
InventorYong-Woo Park
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Abstract
An organic light-emitting display apparatus includes a light-shielding layer formed on a pixel defining layer to prevent external light or internal light from entering an active layer of a thin-film transistor (TFT), thus improving the stability of the active layer, and a method of manufacturing the organic light-emitting display apparatus.
Claims20
An organic light-emitting display apparatus, comprising:
- a substrate;
- a first electrode and a gate electrode on the substrate;
- an active layer insulated from the gate electrode;
- a source electrode and a drain electrode which are insulated from the gate electrode and contact the active layer;
- an insulating layer interposed between the source and drain electrodes and the active layer;
- a pixel defining layer (PDL) on the insulating layer, the PDL covering the source electrode and the drain electrode and comprising an opening that exposes the first electrode;
- and
- a light-shielding layer on a surface of the PDL to shield light incident to the active layer, wherein
- an organic light-emitting diode (OLED) is electrically connected one of the source electrode and the drain electrode.
6 more elements
A method of manufacturing an organic light-emitting display apparatus, the method comprising:
- forming a gate electrode and a first electrode on a substrate;
- forming a gate insulating layer covering the gate electrode on the substrate;
- forming an active layer on the gate insulating layer;
- forming an insulating layer covering at least a channel region of the active layer;
- forming a pixel defining layer (PDL) covering the source electrode and the drain electrode and comprising an opening that exposes the first electrode;
- forming a light-shielding layer shielding light incident to the active layer on the PDL;
- wherein
- an OLED is electrically connected with one of the source electrode and the drain electrode.
5 more elements
Dependencies are inferred from the claim text.