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聚焦新型显示“芯”技术,这5家企业共话“芯”发展
势银芯链· 2025-11-11 07:32
Core Viewpoint - The global display industry is experiencing complex and diverse development trends, with the new display industry expected to exceed $200 billion in value by 2024, with China accounting for half of this market [2]. Industry Overview - The advancement of new display technologies and increasing user demand are driving the popularity of high-end and large-size display products, leading to a rise in demand for high-value products with superior image quality and aesthetics [2]. - The rapid iteration of downstream display technologies such as Mini-LED, Micro-LED/OLED, quantum dot displays, and AR/VR is contributing to the evolution of the display industry, transitioning from scale leadership to technological leadership in China [2]. MicroLED Technology - MicroLED chip manufacturing typically involves etching and epitaxy processes, including substrate preparation, intermediate layer preparation, step etching, conductive layer preparation, and electrode preparation [3]. - MicroLED features miniaturization (pixel size and spacing reduced from millimeters to micrometers) and integration (device structures include LED display driving circuits and LED matrix arrays) [3]. Manufacturing Challenges - The incompatibility of epitaxial growth processes for different colors (e.g., red MicroLED with AlGaInP materials and blue/green with GaN materials) complicates the integration of RGB colors on a single substrate [4]. - As chip sizes shrink to the micrometer level, sidewall defects during the etching process can affect internal quantum efficiency (IQE), leading to a decrease in external quantum efficiency (EQE) [4]. - Existing full-color solutions face challenges such as brightness loss, oversized modules, or high costs, making them unsuitable for micro-display applications like AR/VR [4]. Detection and Repair Technologies - The difficulty in defect detection and repair for micro-sized chips necessitates the development of high-precision non-destructive testing and repair technologies [5]. Upcoming Forum - TrendBank plans to host the "2025 Heterogeneous Integration Frontier Forum" from November 17-19, 2025, focusing on MicroLED and new display technologies, with participation from several related companies [5].
万字深度报告:一文读懂显示材料全景图,从LCD到柔性屏的国产化机遇与挑战
材料汇· 2025-08-03 15:39
Core Viewpoint - The article discusses the current landscape and future strategies of China's display materials industry, emphasizing the dual mainstream technologies of LCD and OLED, the rise of new technologies like quantum dots and Micro-LED, and the critical need for domestic production of high-end materials to overcome reliance on imports [2][5][8]. Group 1: Display Technology Overview - The main display technologies currently dominating the market are TFT-LCD and OLED, with TFT-LCD holding a 40% market share globally due to its low cost and high resolution [7][12]. - OLED is preferred for small to medium-sized high-end displays, with significant advancements in flexible display materials [7][12]. - The demand for new display technologies, including quantum dots and Micro-LED, is increasing, driven by the need for higher resolution and energy efficiency [4][12]. Group 2: Challenges in High-End Materials - The industry faces a "bottleneck" where 90% of high-end materials are imported, particularly in areas like OLED emitting materials and glass substrates [5][7]. - Key materials such as glass substrates and target materials are dominated by foreign companies, leading to a significant reliance on imports [7][12]. - The lack of domestic production capabilities for critical materials poses a risk to the stability and competitiveness of the display industry [5][7]. Group 3: Strategic Solutions - A national-level platform is proposed to integrate resources from enterprises, universities, and research institutions to build a shared database for display materials [6]. - Leading companies are encouraged to focus on technological breakthroughs in high-purity OLED materials and ultra-thin flexible glass [6]. - Collaboration between academia and industry is essential for cultivating talent in display materials engineering to address the skills gap [6]. Group 4: Future Material Innovations - Emerging technologies such as quantum dots and Micro-LED are highlighted as future trends, with quantum dots expected to replace traditional materials due to their superior properties [4][43]. - The development of new materials like transparent PI films and COP films is crucial for the advancement of flexible displays [24][30]. - The article emphasizes the importance of overcoming the limitations of existing materials to enhance the performance and durability of next-generation displays [4][32].