Organic light emitting diode

A technology of light-emitting diodes and diodes, which is applied in the manufacturing of electrical components, electric solid-state devices, semiconductor/solid-state devices, etc., can solve the problems of increasing process steps and production costs, narrow band gap, etc. Production cost, the effect of simplifying the process flow

Inactive Publication Date: 2008-02-06
NINGBO JIAXING TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

More importantly, since Alq3 itself is a green luminescent material with a narrow band gap, it is only suitable for the main material of red and green light devices, but not suitable for the main ma

Method used

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  • Organic light emitting diode
  • Organic light emitting diode
  • Organic light emitting diode

Examples

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Example Embodiment

[0029] Example 1

[0030] Please refer to Figure 1. First, etch ITO on the substrate 1 with ITO to form the anode 2, and then pre-treat the ITO with oxygen plasma, and then continuously vaporize copper phthalocyanine (CuPc), N, N on the ITO -Diphenyl-N,N-bis(2-naphthyl)-1,1-biphenyl-4,4-diamine (NPB), 9,10-(2-β-naphthyl)anthracene (ADN) : 3-(2-Benzothiazole)-7-diethylaminocoumarin (C6): 4-Bicyclomethylene-2-tert-butyl-6-(1,1,7,7- Tetramethyljulonidine-4-vinyl)-4hydro-pyran (DCJTB), 8-hydroxyquinoline aluminum (Alq3), lithium fluoride (LiF) are used as hole injection layer 3 and hole transport respectively Layer 4, light-emitting layer 5, electron transport layer 6, electron injection layer 7, and then a layer of metal aluminum as the cathode 8 is evaporated, and finally the device is encapsulated in anhydrous and oxygen-free manner to complete the device manufacturing. The light-emitting layer is co-evaporated with three sources, 3-(2-benzothiazole)-7-diethylaminocoumarin C6,4-bic...

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Abstract

The present invention relates to a LED comprising a positive layer, a negative layer and a lighting layer which is positioned between the positive layer and the negative layer; the lighting layer comprises a blue light main material which has a two point five to three point five volt forbidden belt width, an energy transmit medium and a little impurity red lighting body; and the present invention makes the blue light main material transmits the laser energy to the lighting body to make the red body light. The present invention has the advantages of high efficiency and stability; and the method of the present invention simplifies the producing process of the lighting colorful displaying device.

Description

technical field [0001] The invention relates to an organic light emitting diode device. Background technique [0002] The main research goal of organic thin film electroluminescent devices is to produce high-resolution, large-area full-color organic light-emitting displays. There are many ways to realize color, such as red, green and blue three primary colors, white light plus filter method, blue light conversion method, etc. In terms of making full use of the luminous efficiency of the three primary colors of red, green, and blue, the three-primary color method is the best display solution. If this method of realizing full color is adopted, three light-emitting devices of red, green and blue need to be fabricated separately. From the perspective of existing technologies, green and blue light devices have made great progress, while the development of red light devices is relatively lagging behind, mainly because the luminous efficiency and device life cannot meet the requi...

Claims

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Application Information

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IPC IPC(8): H01L51/50H01L51/54
Inventor 袁正勇汤昊
Owner NINGBO JIAXING TECH
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