Organic light-emitting device and preparation method thereof

An electroluminescence device and electroluminescence technology, which are applied in the directions of organic semiconductor devices, materials of organic semiconductor devices, and electric solid devices, etc., to achieve the effects of improving lifespan, simple packaging method, and easy large-area preparation.
CN103855321AInactive Publication Date: 2014-06-11OCEANS KING LIGHTING SCI&TECH CO LTD +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
OCEANS KING LIGHTING SCI&TECH CO LTD
Publication Date
2014-06-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

Provided in the invention is an organic light-emitting device comprising a substrate, an anode, a functional layer, a cathode, a packaging layer, and a packaging cover. The substrate, the anode, the functional layer, the cathode, the packaging layer, and the packaging cover are successively laminated. The substrate and the packaging cover form an enclosed space; and the anode, the functional layer, the cathode, and the packaging layer are accommodated into the enclosed space. The packaging layer successively includes a protection layer, an oxygen-nitrogen compound film, an organic blocking layer, a moisture absorbing layer, and a cooling layer; and the oxygen-nitrogen compound film is an oxide film doped with nitride. In addition, the invention also provides a preparation method of the organic light-emitting device. With the method, erosion on the organic light-emitting device by moisture and oxygen can be effectively reduced, so that the device organic functional material and the electrode can be effectively protected and thus the service life of the organic light-emitting device can be obviously prolonged. The method is especially suitable for packaging of a flexible organic light-emitting device.
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Description

technical field

[0001] The invention relates to the related field of electronic devices, in particular to an organic electroluminescent device and a preparation method thereof. Background technique

[0002] Organic electroluminescent device (OLED) is a current-mode semiconductor light-emitting device based on organic materials. Its typical structure is to prepare an organic luminescent material with a thickness of tens of nanometers on the ITO glass as a light-emitting layer, and a metal electrode with a low work function is placed above the light-emitting layer. When a voltage is applied to the electrodes, the light-emitting layer produces light radiation.

[0003] OLED devices have the advantages of active luminescence, high luminous efficiency, low power consumption, lightness, thinness, and no viewing angle restrictions. They are considered by industry insiders to be the new generation of devices that are most likely to occupy a dominant position in the future lighting ...

Claims

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