December 31, 2024 – According to the information provided by the National Intellectual Property Administration, Lohua Display Technology Development (Jiangsu) Co., Ltd. has been granted a new patent for a “Full-Color AR/VR Micro LED Display Device and Its Preparation Method”. The patent, with the authorization number CN118969937B, was filed in October 2024.

Overview of the AR/VR Micro LED Display Device
This innovative invention addresses challenges in the semiconductor display technology field by introducing a full-color AR/VR Micro LED display device. It incorporates a specialized preparation method that utilizes three protective layers, each with varying densities, to enhance the device’s durability and performance.
Key Features of the Preparation Method
The preparation method of the AR/VR Micro LED display device involves layering three distinct protective layers with varying density profiles:
- First Protective Layer: The foundational layer of the device.
- Second Protective Layer: This layer has a higher density than the first. It features a gradient density structure, where one side is denser than the other, with a density difference ranging from 0.6 to 1.5 g/cm³.
- Third Protective Layer: The densest layer, which provides additional protection and rigidity.
This unique design helps improve the rigidity of the device while offering superior protection for the Micro LED chips, especially during the transfer process and throughout the device’s operational lifespan.


Impact on the AR/VR Industry
Lohua’s patented Micro LED technology holds significant potential for AR/VR applications, providing high-performance displays with enhanced chip protection. The innovative use of progressively denser protective layers improves durability and structural stability, addressing critical requirements for next-generation AR/VR displays.

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