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US 9,312,309 B2Granted
Organic light emitting diode display and method for manufacturing the same
AssigneeSamsung Display Co., Ltd.
InventorsJa-Hyun Im, Jung-Min Moon, Tae-Kwang Sung, Ji-Hwan Yoon, Byung-Hoon Chun
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Abstract
An organic light emitting diode display includes a p-doped layer that can obtain high efficiency at low-voltage driving and low current and prevent leakage current by differentially forming the p-doped layer for each pixel.
Claims48
An organic light emitting diode display, comprising:
- a substrate;
- a plurality of pixel electrodes comprising first, second and third pixel electrodes on the substrate;
- a first light emitting auxiliary layer on the pixel electrodes, the first light emitting auxiliary layer comprising:
- a first common doped layer on the first, second and third pixel electrodes, and
- a second doped layer separately disposed within a respective area of at least one of the first pixel electrode, the second pixel electrode, and the third pixel electrode;
- an organic light emitting layer on the first light emitting auxiliary layer, the organic light emitting layer including a first light emitting layer, a second light emitting layer, and a third light emitting layer;
- and
- a common electrode on the organic light emitting layer.
5 more elements
A method for manufacturing an organic light emitting diode display, comprising:
- forming a plurality of pixel electrodes on a substrate comprising forming a first pixel electrode, a second pixel electrode, and a third pixel electrode;
- forming a first light emitting auxiliary layer on the pixel electrodes comprising forming a first common doped layer on the first, second and third pixel electrodes, and forming a second doped layer separately within a respective area of at least one of the first pixel electrode, the second pixel electrode, and the third pixel electrode;
- forming an organic light emitting layer on the first light emitting auxiliary layer comprising forming a first light emitting layer, forming a second light emitting layer, and forming a third light emitting layer;
- and
- forming a common electrode on the organic light emitting layer.
2 more elements
Dependencies are inferred from the claim text.