Announced earlier this year during CES 2025New HDMI 2.2 SpecificationThe HDMI Forum recently announced that the standard has been finalized, doubling its transmission bandwidth to 96Gbps and adding support for stable transmission of uncompressed audio and video content. It also established a related certification mechanism to pave the way for the next generation of high-end displays and audio-visual devices.
The biggest highlight of the HDMI 2.2 specification is its significant bandwidth expansion to 96Gbps, nearly double the 2.1Gbps transmission bandwidth of the current HDMI 48b version. It also introduces a new designation called Ultra96. Going forward, all cables compliant with the HDMI 2.2 specification will be required to carry this designation, making it easier for consumers to intuitively identify cable grades.
根據HDMI論壇說明，HDMI 2.2能對應4K、8K顯示設備顯示輸出，更具備傳輸12K@120fps與16K@60fps穩定影像能力，更支援未壓縮的4:4:4色彩取樣格式，可實現 8K@60fps或4K@240fps畫面輸出，並且涵蓋10-bit、12-bit色彩深度，顯示品質與色彩表現皆向專業領域靠攏。
The HDMI 2.2 specification incorporates a new fixed-rate link signal technology design to support the transmission of uncompressed video and audio content with resolutions above 4K60. It also adds a new LIP delay indication protocol design to address synchronization issues between video and audio content. This significantly reduces latency when connecting to complex audio and video configurations such as AV receivers or multi-channel soundbars, ensuring precise alignment of sound and image.
To ensure consistent quality, the HDMI Forum emphasizes that all HDMI 2.2 specification cables must be individually verified and tested for different lengths, and only those that pass the regulations can be labeled as compliant with Ultra96 certification.
HDMI 2.2 hasn't yet seen widespread adoption in commercially available devices, but with the upcoming release of next-generation monitors and video players, related accessories and devices are expected to enter the market. This is especially true for high-end gaming monitors, home theater projection systems, and professional 8K/12K video playback applications, where HDMI 2.2 will become an essential transmission standard.
