Flexible organic light emission diode and preparation method thereof

An electroluminescent device and electroluminescent technology, which are applied in the fields of electric solid state devices, semiconductor/solid state device manufacturing, electrical components, etc., and can solve problems such as cracks in inorganic thin films, peeling off of stainless steel substrates, and damage to light-emitting devices.
CN104979490AInactive Publication Date: 2015-10-14OCEANS KING LIGHTING SCI&TECH CO LTD +2
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
OCEANS KING LIGHTING SCI&TECH CO LTD
Publication Date
2015-10-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a flexible organic light emission diode, comprising a flexible substrate, a buffer layer, an anode, an organic light emission unit, a cathode and an encapsulated layer which are sequentially laminated. The buffer layer is formed by alternatively laminating an organic buffer film and an inorganic buffer film by three to five times. The material of the organic buffer film is copper phthalocyanine, or zinc phthalocyanine or platinum phthalocyanine. The material of the inorganic buffer film is silica or alumina. According to the flexible organic light emission diode, the buffer layer is formed by alternatively laminating the organic buffer film and the inorganic buffer film by three to five times, the organic buffer film reduces internal stress when the flexible substrate and the internal of the inorganic buffer film perform bending operation, the overall toughness of the buffer layer is improved, during the flexure operation, the buffer layer cannot fall off the flexible substrate easily, and the light emission stability of the flexible organic light emission diode is good. The invention also discloses a preparation method of the abovementioned organic light emission diode.
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Description

technical field

[0001] The invention relates to the field of organic electroluminescence, in particular to a flexible organic electroluminescence device and a preparation method thereof. Background technique

[0002] Organic Light Emission Diode (OLED) has the characteristics of high brightness, wide range of material selection, low driving voltage, fully cured active light emission, etc., and has the advantages of high definition, wide viewing angle, and fast response speed. A display technology and light source with great potential, in line with the development trend of mobile communication and information display in the information age, and the requirements of green lighting technology, is the focus of many researchers at home and abroad.

[0003] Flexible organic electroluminescent devices have advantages such as flexibility and portability. Stainless steel flakes can also be used as substrate materials for flexible organic electroluminescent devices, which have the adv...

Claims

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