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Organic light emitting diode

A light-emitting diode, organic technology, applied in the direction of electroluminescent light source, light source, electric light source, etc., can solve problems such as bumps, excessive operating voltage, and difficult production

Active Publication Date: 2008-11-12
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These metal electrodes will have difficulties in manufacturing during the driving transistor manufacturing process, such as etching, protrusions, etc., and have the disadvantage of excessive operating voltage of the components

Method used

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

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Embodiment Construction

[0040] The "organic light-emitting diode" of the present invention is now described in detail in conjunction with the diagrams, and the preferred embodiments are listed as follows:

[0041] Please refer to Figure 2A , is the organic light emitting diode of the present invention. The basic structure of the OLED 30 includes a first electrode 32 , an electron transport layer 33 a , a light emitting layer 34 and a second electrode 35 . The first electrode 32 is formed on the substrate 31, and the electron transport layer 33a is arranged on the first electrode 32, and has at least one n-type dopant, and the light emitting layer 34 is arranged on the electron transport layer 33a, adopts fluorescent The second electrode 35 is provided on the light-emitting layer 34 as a low-molecular or high-molecular compound with strong luminescence such as phosphorescence or phosphorescence. like Figure 2A As shown, after the light emitting layer 34 is formed, a hole transport layer 37 or a h...

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Abstract

The organic LED includes a first electrode, an electron transmission layer, a luminous layer, and a second electrode stacked in sequence. The electron transmission layer includes at least an N type adulterant in use for enhancing electron mobility of the electron transmission layer. The N type adulterant includes halides of alkali metals, halides of alkaline earth metal, oxides of alkali metals or compound of metal and carbonic acid.

Description

technical field [0001] The present invention relates to an organic light emitting diode, in particular to an organic light emitting diode with an n-type dopant electron transport layer. Background technique [0002] An organic electroluminescent display is mainly composed of an organic light emitting diode and its driving transistor. Organic light emitting diodes can be classified into bottom emission, inverted bottom emission, top emission, inverted top emission, or double-sided emission. Inverted organic light emitting diodes are different from ordinary organic light emitting diodes in that the process starts with the cathode being formed on the substrate, then forming the organic layer, and finally forming the anode, so the cathode is closer to the surface of the substrate to connect with the drain terminal of the driving transistor . [0003] Please refer to Figure 1A and Figure 1B , Figure 1A A pixel structure for an existing organic electroluminescence display; ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/50H01L51/54H05B33/14
Inventor 陈哲仁李世昊
Owner AU OPTRONICS CORP