Organic light emitting diode and its preparation method

A light-emitting diode and organic technology, which is applied in semiconductor/solid-state device manufacturing, semiconductor devices, electrical components, etc., can solve the problems of OLED light output efficiency reduction, working temperature rise, impact on performance and life, etc., and achieve a wide range of graphic reproduction, The effect of reducing the temperature rise of the device and improving the yield

Active Publication Date: 2018-10-26
LEEDARSON IOT TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This consumption accounts for a relatively high proportion of OLED light loss, which can reach 51%, so that the light output efficiency of OLED is reduced, the working temperature is increased, and the performance and life are affected.

Method used

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  • Organic light emitting diode and its preparation method
  • Organic light emitting diode and its preparation method
  • Organic light emitting diode and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] An organic light-emitting diode composed of a cathode, an organic electroluminescent unit and an anode, and a plasma nano waveguide filter reflector is prepared on the cathode to increase the light extraction rate of the organic light-emitting diode.

Embodiment 2

[0054] An organic light-emitting diode composed of a cathode, an electron transport layer, a light-emitting layer, a hole transport layer and an anode in sequence, and an M-I-M plasmonic waveguide filter reflector that can generate a band gap in the visible wavelength range is prepared on the cathode, then this Organic light-emitting diodes have a high visible light output rate.

Embodiment 3

[0056] An organic light-emitting diode composed of a cathode, an electron injection layer, an electron transport layer, a light-emitting layer, a hole transport layer, a hole injection layer, and an anode in turn, and prepared on the cathode can generate a number of wavelengths (the one that is relatively missing in the light emitted by the anode) ) combined selective band gap M-I-M plasma waveguide filter reflector, the organic light emitting diode has a uniform visible spectrum.

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PUM

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Abstract

The invention discloses an organic light emitting diode and a preparation method thereof. The organic light-emitting diode of the present invention includes an anode, a cathode, and an organic electroluminescent unit sandwiched between the anode and the cathode, the cathode is made of a metal material, and the cathode is provided with a metal-insulator-metal plasmonic nano waveguide filter A reflector, the light emitted by the organic electroluminescent unit to the cathode passes through the reflector in reverse phase and toward the anode direction. The preparation method of the organic light-emitting diode of the present invention is to manufacture an organic light-emitting diode, and prepare a metal-insulator-metal ion body waveguide filter reflector on its cathode by nano-imprinting method. The invention reflects the light directed toward the cathode toward the anode through the metal-insulator-metal plasma nano-waveguide filter reflector, thereby improving the light extraction efficiency of the organic light-emitting diode, reducing the working temperature rise, and increasing the working current.

Description

technical field [0001] The invention relates to the field of light emitting diodes, in particular to an organic light emitting diode and a preparation method thereof. Background technique [0002] Organic light-emitting diode, English abbreviation OLED, has many advantages such as full solid state, active light emission, high contrast, fast response, wide viewing angle, vivid color, high definition, ultra-thin, easy to flexible display, etc. It is an emerging display in the information field. Technology, following LCD, is considered to be the fastest-growing new flat-panel display technology in the next 20 years, and has been applied to small and medium-sized color displays such as mobile phones, personal data processors, and car dashboards. [0003] In OLED devices, the generated light usually loses more than 70% due to the process in the device structure. In order to improve the light extraction efficiency of OLEDs, people have made many improvements, such as Chinese paten...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/52H01L51/56
CPCH10K50/856H10K71/00
Inventor 李江淮马德林
Owner LEEDARSON IOT TECH INC
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