Zhong Guo Neng Yuan Wang·2025-04-27 01:58Core Insights - The report by Dongwu Securities highlights the potential of silicon carbide (SiC) materials as ideal substrates for AR glasses due to their high refractive index and thermal conductivity [1][3] - AR glasses are positioned as a perfect carrier for AI applications, merging virtual and real-world information seamlessly [2] Industry Overview - The global shipment of AR glasses is projected to reach 553,000 units in 2024, representing a year-on-year increase of 7.8%, with China accounting for 286,000 units [2] - The optical display system, comprising optical combiners and micro-displays, is the core component of AR glasses, constituting over 40% of the total cost [2] Technology Trends - Surface relief grating (SRG) waveguide technology is identified as the future mainstream trend for AR glasses' optical display systems, offering controllable manufacturing costs and excellent optical performance [2] - SiC materials combined with SRG waveguides and etching processes are crucial for significant advancements in AR glasses, enhancing field of view (FOV) and addressing issues like color dispersion and light loss [3] Cost Reduction Strategies - The need for semi-insulating SiC substrates in large sizes is emphasized as a key factor for cost reduction, with breakthroughs in 12-inch substrate mass production being essential for making AR glasses more accessible to the consumer market [4] - It is estimated that if AR glasses reach a shipment volume of 100 million units, approximately 10 million 12-inch SiC substrates will be required [4] Investment Recommendations - The report recommends focusing on companies such as Jing Sheng Mechanical and Tian Yue Advanced as key investment opportunities in the AR glasses sector [5]