本文讨论了AR眼镜中LCoS照明光源的选择和LCoS照明光路的设计准则，讨论了使用LED或者激光作为 照明光源的差异性。 LCoS（Liquid-Crystal-on-Silicon）的全称为硅基液晶，也就是在硅基底上铺液晶对光进行调制，可以看 出其与LCD（Liquid-Crystal-Display）同源，都是利用液晶对光的偏振态进行调制，然后利用偏振片达 到调制光的强度或相位的目的。下面为液晶改变光的偏振态的原理：液晶具有双折射的性质，也就是存 在快慢轴，液晶在快慢轴偏振方向的折射率不一致，经过液晶层之后，快慢轴方向就存在相位差，导致 光线偏振态发生变化，使得光线强度或者相位的变化。 虽然LCoS与LCD都是利用液晶调制，但是LCoS相对于LCD具有较大的优势如高能量利用率、高分辨 率、高对比度、色彩丰富、自然3D图像的生成等。综合以上的优势，LCoS可应用于高端的投影设备， 如需要高亮度、高对比度，AR/VR头显，需要小尺寸、高分辨率的场景。 在AR眼镜行业，显示源可以分为以下几种LCoS、DLP、OLED、Micro LED、LBS等。其中LCoS凭借 技术成熟、成本低等优势成为当前行业较为主流的选 ...

Investment Rating - The report indicates a strong growth potential for the micro-display technology industry, with a projected compound annual growth rate (CAGR) exceeding 20% from 2024 to 2032 [8][10]. Core Insights - The micro-display technology is driven by the increasing demand for high-resolution, small-sized, and low-power near-eye displays, particularly in emerging applications like VR and AR, which are expected to create a significant incremental market [8][9]. - The market size for micro-display technology is estimated to reach $2.41 billion in 2023, with the near-eye device segment accounting for over 45% of industry revenue [8][9]. - Different micro-display technologies have their advantages and disadvantages, often overlapping in application scenarios, leading to competitive dynamics within the industry [13][14]. Summary by Sections 1. Market Growth - The micro-display market is expected to grow significantly, with a CAGR projected to exceed 20% from 2024 to 2032, driven by advancements in semiconductor technology and the rise of VR/AR applications [8][10]. - The near-eye device segment, including AR/VR headsets and smart glasses, is a major contributor to this growth, representing over 45% of the market revenue [8][9]. 2. Micro-Display Technologies - Micro-display technologies can be categorized into two main types: self-emissive technologies (LCD, Micro OLED, Micro LED) and reflective technologies (LCoS, DLP, LBS) [13][14]. - Each technology has unique strengths and weaknesses, with significant competition in various application areas [13][14]. 3. Key Technologies - Fast LCD technology, combined with Mini LED backlighting, enhances the performance of LCDs in micro-display applications, making it a cost-effective option [15]. - Micro OLED technology is rapidly developing but faces uncertainties in its technological path [20][21]. - Micro LED technology is seen as a future display solution, although it currently faces challenges related to mass transfer technology [27][28]. - LCoS technology has achieved high maturity and is being utilized in AR/VR and HUD applications [31]. - DLP technology is primarily used in projectors and is expanding into new fields such as AR and 3D printing [35]. - LBS technology is favored for its compact size and high efficiency, particularly in AR/VR applications [38]. 4. Market Leaders - Major players in the micro-display field include Samsung, LGD, Sony, JVC, Kopin, SMD, and BOE, each focusing on different technologies and applications [49][52][56][59][62][72]. - Samsung has made significant investments in Micro OLED technology, while LGD focuses on high-brightness Micro OLED displays [49][52]. - Sony is a leader in LCoS technology and has a strong presence in the silicon-based OLED market [56]. - BOE is actively expanding its capabilities in Micro OLED and Micro LED technologies [72].

Core Insights - The near-eye display device market is expected to show a lackluster performance in the short term, with global shipments projected to reach 6.2 million units by 2025 [2] - The VR/MR market, particularly Meta Quest 3s, is anticipated to see a decline in shipments to 5.6 million units by 2025, while AR devices are expected to perform more steadily, with shipments reaching 600,000 units driven by new AI+AR products and decreasing OLEDoS prices [2] - Long-term growth is expected, with global near-eye display shipments projected to rise to 46.5 million units by 2030, supported by ongoing product development from major companies like Meta and Apple, and strong growth in the AR market [2] AR Display Technology Market Development - OLEDoS remains the mainstream technology in China due to its cost advantages, but other technologies pose a threat to its dominance [6] - LCoS technology is expected to gain traction in the market due to Meta's adoption, while the growth of single green LEDoS AR glasses will enhance the penetration of LEDoS technology [6] - The demand for AR devices is increasing, with expectations for shipments using high-spec full-color LEDoS technology to reach 20.9 million units by 2030, achieving a penetration rate of 65% [7] Optical Waveguide Technology and SiC Supply Alliance Analysis - The choice of optical waveguide technology is critical for AR engine modules, with diffraction waveguides currently being the mainstream but needing efficiency improvements [9] - NIL and PL are the two main processing methods for waveguides, with NIL suitable for small-scale development and PL better for mass production [9] - The trend towards larger SiC substrates is expected to enhance cost-effectiveness, with projections indicating that 8-inch SiC substrate shipments could exceed 20% by 2030, moving towards 12-inch substrates in the long term [9] AR Product Development Trends - The specifications of AR devices are becoming standardized to control costs, with mainstream panel sizes for LEDoS and LCoS ranging from 0.13 to 0.18 inches and pixel densities exceeding 5,500 PPI [10] - Chinese brands like Xreal, RayNeo, and INMO are focusing on different strategies, such as enhancing display technology and integrating AI capabilities, reflecting a shift from hardware competition to a more complex software-hardware ecosystem [10]

Group 1 - The global XR (AR/VR) display shipments are expected to grow by 6% year-on-year by 2025, with AR devices experiencing a significant growth rate of 42%, compared to VR devices' modest growth of 2.5% [1] - The anticipated growth in AR is driven by the introduction of new AR smart glasses that utilize displays for AI-supported applications rather than just media consumption [1] - In 2024, a significant decline in display panel shipments is expected as XR device manufacturers clear inventory and adjust business plans, with the release of Meta Quest3S contributing to this decline due to its single LCD panel design [1] Group 2 - LCD technology is projected to dominate VR display technology, accounting for 87% of shipments in 2025, used in both entry-level and high-end devices with advanced technologies [1] - In the AR sector, the share of silicon-based OLED is expected to decrease to 75%, allowing more room for MicroLED and LCoS display technologies [1] - The report anticipates a continuation of the recovery trend in 2026, with AR display panel shipments increasing by 38% and VR by 2.1%, although uncertainties exist due to U.S. tariffs on Chinese goods affecting XR device demand [2]