HDMI 2.2 与其前身 HDMI 2.1 相比，其关键改进在于带宽从 48 GB/s 提升至 96 GB/s。为了确保 所有 HDMI 2.2 设备都能获得一致的体验，您将看到新款 HDMI 线缆带有"Ultra96"标签，以表示上 述传输速率能力。这些线缆将获得 HDMI 论坛 (HDMI Forum) 的认证，并带有清晰的品牌标识，方 便识别。 公众号记得加星标⭐️，第一时间看推送不会错过。 来源：内容 编译自 tomshardware 。 HDMI 论坛已正式确定下一代视频标准HDMI 2.2 ，并将于今年剩余时间内陆续推出。今年 1 月的 CES 上，我们已经发布了一系列重要公告，而现在完整规格已正式发布，得益于全新 Ultra96线缆的 推出，HDMI 2.2 在最大带宽支持方面将超越 DisplayPort，这一点已得到确认。 "Ultra96"电缆到底是什么？ 除了向下兼容之外，HDMI 2.2 还将带来另一项名为"延迟指示协议"（LIP）的便捷功能，有助于音 频和视频同步。这项功能只适用于大型、复杂的家庭影院系统，例如包含大量扬声器声道、接收器和 投影仪（或屏幕）的设备。如果您是其中的一员 ...

Core Viewpoint - The article discusses the advancements in HDMI technology, particularly focusing on HDMI 2.1 and the newly announced HDMI 2.2, highlighting their features and implications for consumers and the industry [1][5]. Group 1: HDMI 2.1 Overview - HDMI 2.1 was officially announced in November 2017, significantly increasing bandwidth from 18 Gbps to 48 Gbps, allowing for higher video resolutions and refresh rates [3]. - It supports 120 Hz 4K video, 60 Hz 8K video, and even 10K video, along with advanced gaming features like Variable Refresh Rate (VRR) and Auto Low Latency Mode (ALLM) [3][4]. - HDMI 2.1b also includes features like HDMI eARC for lossless audio transmission and dynamic HDR support for scene-by-scene optimization [4]. Group 2: HDMI 2.2 Features - HDMI 2.2, announced at CES 2025, doubles the bandwidth to 96 Gbps, targeting commercial applications and advanced consumer technologies like AR and VR [5][6]. - It aims to enhance medical imaging and next-generation media production, with potential applications in machine vision for robotics and autonomous vehicles [6][7]. - A notable improvement is the Low Latency Indication Protocol (LIP) for better audio-video synchronization between devices [7]. Group 3: GPMI Development - The GPMI (General Purpose Media Interface) was developed by a coalition of over 50 Chinese companies, providing a unified multimedia interface solution [9][10]. - GPMI offers a bandwidth of up to 192 Gbps and a power delivery capability of 480W, addressing the complexity of multiple connections in traditional setups [10]. - It supports dual-directional control, allowing users to operate multiple devices through a single interface, enhancing user experience [10][11]. Group 4: Comparison with Existing Technologies - GPMI is positioned as a potential alternative to HDMI and DisplayPort, with specifications that surpass current standards in terms of bandwidth and power delivery [10][11]. - HDMI 2.1 and DisplayPort 2.1 have lower bandwidth capabilities compared to GPMI, which could lead to a shift in industry standards [10].