Organic light-emitting apparatus including electron transport layer and method of manufacturing the same
AssigneeSamsung Display Co., Ltd.
InventorsWonjun SONG, Jaebok Kim, Jungjin Yang
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Abstract
An organic light-emitting apparatus and a method of manufacturing the same. The method includes depositing a mixed layer and a buffer layer as an electron transport layer on the emission layer by making a single round-trip of the source unit that includes the first through third ejectors in a scanning direction of the substrate, wherein the mixed layer includes a mixture of the first and second semiconductor materials and the buffer layer includes a single layer including the third semiconductor material.
Claims16
An organic light-emitting apparatus comprising:
- a pixel electrode connected to a thin film transistor;
- a counter electrode corresponding to the pixel electrode;
- an emission layer disposed between the pixel electrode and the counter electrode;
- and
- an electron transport layer disposed between the emission layer and the counter electrode,
- wherein the electron transport layer comprises a mixed layer and a buffer layer disposed between the emission layer and the mixed layer, the mixed layer comprising a plurality of semiconductor materials that are mixed, and the buffer layer comprising a single semiconductor material.
A method of manufacturing an organic light-emitting apparatus, the method comprising:
- preparing a substrate on which an emission layer is formed;
- preparing a source unit in which first through third semiconductor materials that are s materials for depositing an electron transport layer on the emission layer are respectively accommodated in a first ejector, a second ejector, and a third ejector;
- and
- depositing a mixed layer and a buffer layer on the emission layer by making a single round-trip of the source unit in a scanning direction of the substrate,
- wherein:
- the mixed layer comprises a mixture of the first and second semiconductor materials;
- and
- the buffer layer comprises a single layer comprising the third semiconductor material.
Dependencies are inferred from the claim text.