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US 8,569,761 B2Granted
Organic light emitting display device
AssigneeSamsung Display Co., Ltd.
InventorsSoo-Beom Jo, Sung-Won Doh
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Abstract
An organic light emitting display device capable of preventing outgassing from a pixel defining layer (PDL) or a planarization layer and method of manufacturing the same.
Claims21
An organic light emitting display device comprising:
- a substrate;
- a pixel circuit on the substrate;
- a pixel electrode electrically coupled to the pixel circuit;
- a pixel defining layer (PDL) exposing the pixel electrode;
- an intermediate layer on the pixel electrode, the intermediate layer being configured to radiate light;
- a first ion injected layer comprising organic material and located on the PDL;
- and
- a second ion injected layer comprising organic material and located between the pixel electrode and the substrate,
- wherein the first ion injected layer and the second ion injected layer comprise ions BHx+or PH+,
- wherein the second ion injected layer directly contacts the PDL and overlaps with the first ion injected layer, and
- wherein a side surface of the pixel electrode is not covered by the second ion injected layer.
8 more elements
A method of manufacturing an organic light emitting display device, the method comprising:
- forming a pixel circuit on a substrate;
- forming a passivation layer on the pixel circuit;
- forming a planarization layer on the passivation layer;
- forming a pixel electrode on the planarization layer and electrically coupled to the pixel circuit;
- forming an intermediate layer on the pixel electrode, the intermediate layer being configured to radiate light;
- forming a pixel defining layer (PDL) on the planarization layer so as to expose the pixel electrode;
- forming a first ion injected layer comprising organic material and located on the PDL;
- and
- forming a second ion injected layer comprising organic material and located between the pixel electrode and the substrate,
- wherein the first ion injected layer and the second ion injected layer comprise ions BHx+or PH+,
- wherein the second ion injected layer directly contacts the PDL and overlaps with the first ion injected layer, and
- wherein a side surface of the pixel electrode is not covered by the second ion injected layer.
9 more elements
Dependencies are inferred from the claim text.