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Dual-side luminescent type organic LED and its making method

A light-emitting diode, double-sided light-emitting technology, used in semiconductor/solid-state device manufacturing, electrical components, electrical solid-state devices, etc., can solve problems such as poor penetration of transparent electrodes

Inactive Publication Date: 2008-02-13
CHUNGHWA PICTURE TUBES LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0009] The object of the present invention is to provide a method for manufacturing a double-sided light-emitting organic light-emitting diode to solve the problem of poor transmittance of the transparent electrode in the double-sided light-emitting organic light-emitting diode

Method used

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  • Dual-side luminescent type organic LED and its making method
  • Dual-side luminescent type organic LED and its making method
  • Dual-side luminescent type organic LED and its making method

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Embodiment Construction

[0040]2A to 2C are cross-sectional schematic diagrams of the manufacturing process of a double-sided light-emitting organic light-emitting diode in a preferred embodiment of the present invention. First, please refer to FIG. 2A , a transparent substrate 210 is provided. In an embodiment of the present invention, the transparent substrate 210 may be a glass substrate or a substrate made of other suitable transparent materials. Next, please refer to FIG. 2B , a first transparent electrode 220 and an organic light emitting layer 230 are sequentially formed on the transparent substrate 210 . Generally speaking, the material of the first transparent electrode 220 can be indium tin oxide, indium zinc oxide, aluminum zinc oxide, antimony tin oxide, zinc oxide, indium oxide or tin oxide. In addition, in an embodiment of the present invention, the manufacturing method of the organic light-emitting layer 230 includes the following steps: firstly, a layer of hole injection layer 231 is ...

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Abstract

The invention discloses a fabrication method of the double-sided luminescence type organic light-emitting diode, comprising the following steps. Firstly, a transparent substrate is provided; secondly, a first transparent electrode and an organic luminescent layer are formed on the transparent substrate in order; and then a second transparent electrode is formed on the organic luminescent layer. The procedure of forming the second transparent electrode comprises that a first film layer is formed on the organic luminescent layer, and the first film layer is made of an alkali metal compound or an alkaline earth metal compound; a second film layer is formed on the first film layer, and the second film layer is made of a metal material with the thickness of 20 angstrom to 50 angstrom; Finally, a plasma diffusion deposition process or an ionic thermal evaporation process for forming a third film layer on the second film layer is carried out, and the third film layer is made of a transparent conductive material.

Description

technical field [0001] The present invention relates to an organic light-emitting diode and a manufacturing method thereof, and particularly relates to a double-sided light-emitting organic light-emitting diode with high-transmittance electrodes and low driving voltage and a manufacturing method thereof. Background technique [0002] Organic light-emitting diodes are semiconductor elements that can convert electrical energy into light energy and have high conversion efficiency. Common applications are light-emitting elements for indicator lights, display panels, and optical read-write heads, etc. Due to the characteristics of organic light-emitting diodes, such as no viewing angle, simple manufacturing process, low cost, high response speed, wide temperature range and full color, etc., which meet the requirements of display characteristics in the multimedia era, it has become a research boom in recent years. [0003] The organic light emitting diode mainly includes a glass s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/56H01L51/50H01L51/52H01L51/54
Inventor 沈汶键曾启光苏呈封汤舜钧
Owner CHUNGHWA PICTURE TUBES LTD
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