Micro-display device and preparation method thereof

The nanocomposite film in MicroLED displays addresses optical crosstalk and electrical interference by blocking photon propagation and enhancing reflection, improving light output and stability for smaller pixel sizes.

CN119208354AActive Publication Date: 2024-12-27WEST LAKE YANSHAN SEMICONDUCTOR (SHANGHAI) CO LTD
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Patent Information

Application Number
CN202411707823.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-27
Publication Date
2024-12-27
Estimated Expiration
2044-11-27

AI Technical Summary

Technical Problem

Existing MicroLED displays face challenges with optical crosstalk and electrical interference between microdisplay units, particularly as pixel sizes decrease, which traditional isolation methods fail to address effectively.

Method used

A microdisplay device with a nanocomposite film comprising an insulating bottom layer, intermediate transmission layer, reflective layer, and protective layer, applied through atomic layer deposition, provides optical and electrical isolation by blocking photon propagation and enhancing reflection efficiency.

Benefits of technology

The nanocomposite film effectively reduces optical crosstalk and electrical interference, increasing light output and maintaining device stability for smaller microdisplay units.

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Abstract

The invention discloses a micro display device and a preparation method thereof, and relates to the technical field of display. The pixel array layer comprises a plurality of micro display units which are arranged on the surface of the driving substrate; the nano-composite film comprises a plurality of nano-scale film layers and is positioned in the light emitting direction of the side wall of the micro-display unit; wherein the multi-layer nanoscale film layer comprises an insulating bottom layer, a middle transmission layer, a reflecting layer and a protective layer which are far away from the side wall in sequence. According to the technical scheme provided by the invention, the optical isolation and the electrical isolation between the micro display units are enhanced, and meanwhile, the requirement of adapting to the preparation of the micro display units with smaller sizes is met.
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Citation Information

Patent Citations

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  • Common-cathode micro light-emitting diode display structure and display device thereof

    CN114823765A

  • Micro-display device, micro-display array structure and preparation method thereof

    CN117393682A

  • MicroLED display panel, manufacturing method and electronic equipment

    CN118053967A

  • Micro-LED display panel and preparation method thereof

    CN118367070A

Cited By

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