Core Points - VESA has been dedicated to establishing and promoting universal and compatible solutions for the video and electronics industry for over 30 years, with the DisplayPort standard becoming a key alternative to DVI, LVDS, and VGA [1] - The automotive sector is emerging as a new focus for DisplayPort, driven by the increasing number of high-resolution displays in vehicles that provide critical information for safe driving [4][5] - The introduction of the DP AE compliance testing model in May 2025 aims to standardize the verification of data integrity between display devices and sources, addressing previous industry gaps [4][5] Summary by Sections VESA and DisplayPort - VESA is an international non-profit organization that includes over 340 manufacturers in the hardware, software, and electronics sectors, focusing on video standards [1] - The DisplayPort standard is recognized for its advanced digital protocol and scalability, enhancing digital display experiences across various devices [1] Automotive Display Technology - The rise of smart and connected vehicle technologies has led to an increase in the number of in-car high-resolution displays [4] - Most automotive displays currently utilize DisplayPort or eDP for video data transmission from the central vehicle computer [4] - The DP AE standard, set to be released in May 2025, will provide a comprehensive compliance testing model to ensure data integrity and security in automotive displays [4][5] DP AE Standard Features - The DP AE standard is compatible with the latest DisplayPort 2.1a and eDP 1.5a versions, ensuring functional and information security for automotive displays [5] - It supports both compressed and uncompressed video, allowing for multi-stream transmission of up to 16 display regions [5] - The standard aims to meet the highest safety requirements (ISO 26262 ASIL-D) for automotive display interfaces [5] Industry Collaboration and Future Directions - VESA's DP AE standard incorporates critical safety protocols to enhance data integrity and prevent unauthorized access [10] - Industry leaders emphasize the importance of advanced, safe, and reliable display interfaces in the automotive sector, encouraging collaboration among silicon IP providers and automotive suppliers [10][11]

Core Viewpoint - The release of Huawei Mate TV has sparked speculation about the interface protocol it uses, with GPMI (General-Purpose Multimedia Interface) being a prominent candidate for adoption, marking a significant step in China's multimedia interface standardization efforts [1][13]. Group 1: GPMI Development and Background - GPMI is not the first attempt at establishing a Chinese multimedia interface standard; previous efforts include DiiVA, which was launched in 2008 but failed to gain traction due to a lack of market influence [2][3]. - The GPMI standard was officially released in 2023, following a series of developmental milestones, including the establishment of a working group in 2019 and the release of a draft standard in 2021 [6][12]. Group 2: Technical and Policy Support - GPMI aims to address the limitations of traditional multimedia interfaces by enabling multi-stream transmission of audio, video, and control signals, enhancing user experience [4][7]. - The Chinese government has provided substantial support for GPMI, designating it as a core technology for high-speed interfaces and facilitating its application in various scenarios [5][10]. Group 3: Competitive Landscape - GPMI faces competition from established international standards like HDMI and DisplayPort, with GPMI Type-C supporting data rates of up to 96Gbps and power delivery of 240W, while Type-B can achieve 192Gbps and 480W [8][9]. - The performance of GPMI has been highlighted as superior to HDMI and DisplayPort, with a broader range of applications, including TVs and data transmission [14][15]. Group 4: Industry Collaboration and Ecosystem Building - Over 50 leading companies, including Huawei and TCL, are collaborating to develop GPMI, creating a comprehensive ecosystem that spans chips, terminals, and testing [10][11]. - The first GPMI-enabled smart TV was launched by Haier in late 2024, marking a significant entry into the consumer market and enhancing GPMI's visibility [12]. Group 5: Strategic Importance - The establishment of GPMI is seen as a crucial step for China to gain a foothold in the global multimedia interface market, potentially breaking the long-standing dominance of international standards [13][14]. - GPMI's development is positioned as a strategic move to enhance China's technological sovereignty and competitiveness in the global tech landscape [15].

Core Viewpoint - The article emphasizes the critical role of the physical layer (PHY) in data communication, particularly in the context of emerging technologies such as artificial intelligence and high-performance computing, highlighting its importance in meeting the increasing demands for bandwidth, low latency, and energy efficiency [3][6][11]. Summary by Sections Importance of PHY - The physical layer has evolved from supporting traditional industries to becoming foundational for AI factories and large-scale data centers, acting as a key driver for data transmission and communication [3]. - As data centers handle massive amounts of data, the significance of PHY increases, especially for AI and HPC workloads that require unprecedented system performance [3][6]. Standards and Applications - Understanding the physical layer is crucial for maintaining competitiveness in various applications, with different standards developed to address specific issues [4]. - Standards like HDMI and DisplayPort illustrate the need for compatibility and efficiency in system design, balancing cost and functionality [5]. Design Challenges - Designing PHY for speeds exceeding 100G presents numerous challenges, including process technology dependence, signal integrity, system design constraints, and packaging integration [8]. - The transition from NRZ to PAM signaling represents a significant shift in technology, necessitating advanced design techniques to meet increasing bandwidth demands [7][8]. Chip-to-Chip Communication - The development of chip-to-chip communication standards, such as UCIe, aims to achieve high bandwidth with low power consumption, which is essential for modern 3D systems [9]. - The integration of multiple dies in a system-on-chip (SoC) architecture requires careful consideration of physical layer protocols to optimize performance [9][10]. Collaboration Between Disciplines - Effective collaboration between analog and digital engineers is necessary to bridge the gap between different domains, ensuring that physical effects are adequately addressed in system design [10][11]. - A comprehensive understanding of how physical effects impact system performance is vital for optimizing designs and achieving desired outcomes [11]. Future Outlook - As the industry progresses towards higher standards like 448G, the challenges will intensify, particularly with the emergence of chip decomposition and optical I/O [11]. - The PHY layer is increasingly viewed as a strategic enabler, necessitating continuous innovation and commitment to pushing technological boundaries [11].