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A kind of preparation method of micro-nano composite structure light extraction film

A technology of micro-nano composite structure and light extraction film, which is applied in the manufacture of semiconductor/solid-state devices, electrical components, electric solid-state devices, etc., can solve the problems of changing the spectral characteristics and angular distribution of devices, so as to avoid light loss, low cost, The effect of the hard light extraction effect

Active Publication Date: 2021-03-30
FUZHOU UNIV
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  • Application Information

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Problems solved by technology

[0004] Traditional single periodic micron-structured light extraction films tend to change the spectral characteristics and angular distribution of the device

Method used

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  • A kind of preparation method of micro-nano composite structure light extraction film
  • A kind of preparation method of micro-nano composite structure light extraction film
  • A kind of preparation method of micro-nano composite structure light extraction film

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Embodiment Construction

[0034] The invention will be further described below with reference to the accompanying drawings and examples.

[0035] It should be noted that the following detailed description is exemplary and is intended to provide a further description of the present application. Unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art of this application.

[0036] It should be noted that the terms used herein are intended to describe specific embodiments, and not intended to limit the exemplary embodiments of the present application. As used herein, unless the context further clearly indicates that the singular form is intended to include a plural form, but it should be understood that when the term "including" and / or "including" is used in this specification, it indicates There is a combination of features, steps, operations, devices, components, and / or their combinations.

[0037] Such as Figure ...

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Abstract

The invention relates to a preparation method of a micro-nano composite structured light extraction film, comprising steps: step S1: preparing a PDMS template with an ordered micron structure by a soft printing method; step S2: stretching the PDMS template with an ordered micron structure , and perform plasma treatment to obtain nanopatterns of different shapes and sizes on the micron-structured PDMS template, forming a PDMS micro-nano composite pattern opposite to the desired micro-nano composite structure; Step S3: transfer the PDMS micro-nano composite pattern to On the desired polymer, a light extraction film is obtained. The invention has high production efficiency and low cost, and at the same time, the prepared light extraction film nests disordered nanostructures in ordered microstructure patterns, which can avoid light loss at the interface between the device substrate and the air, and does not change the viewing angle characteristics of the OLED device. , has a strong light extraction effect.

Description

Technical field [0001] The present invention relates to the field of photoelectric display technologies, particularly a method of preparing a micro-nano-composite structural light extract film. Background technique [0002] The organic light-emitting diode (OLED) is widely used in a display of mobile phones and televisions, however, due to surface plasma homogenization mode, indium tin oxide (ITO) / organic layer due to surface plasma homoles in the metal organic boundary, The loss of the substrate mode or the like in the glass substrate, and the outer quantum efficiency of the OLED is about 20%. [0003] Since the refractive index between the ITO / glass interface and the glass / air interface is small, the light loss in the substrate mode is greater than the light loss in the waveguide mode, and therefore, a layer of light extraction layer is added at the glass / air interface, which can be greatly Increase the luminous efficiency of OLEDs. [0004] Traditional single cycle mic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/56H01L51/52
CPCH10K50/85H10K71/00
Inventor 周雄图赖晓聪郭太良张永爱吴朝兴林志贤严群
Owner FUZHOU UNIV
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