HDMI enables communication between different types of devices, such as digital TV/video receivers, digital cameras, HDTVs, computers, and mobile devices. The HDMI standard is managed by the HDMI Licensing LLC, which was formed in February 2008 as a merger of the HDMI Founders Group and the HD DVD Promotion Group.

Take control of your TV with your HTPC via HDMI-CEC". Engadget. August 25, 2011 . Retrieved November 20, 2011. Auto Low Latency Mode (ALLM)– When a display device supports the option to either optimize its pixel processing for best latency or best pixel processing, ALLM allows the current HDMI source device to automatically select, based on its better understanding of the nature of its own content, which mode the user would most likely prefer.Rodolfo La Maestra (June 25, 2006). "HDMI– A Digital Interface Solution". HDTV Magazine. Archived from the original on May 30, 2016 . Retrieved June 23, 2008. High-Definition Multimedia Interface ( HDMI) is a proprietary audio/video interface for transmitting uncompressed video data and compressed or uncompressed digital audio data from an HDMI-compliant source device, such as a display controller, to a compatible computer monitor, video projector, digital television, or digital audio device. [3] HDMI is a digital replacement for analog video standards. HDMI 1.2a was released on December14, 2005 and fully specifies Consumer Electronic Control (CEC) features, command sets and CEC compliance tests. [96] Version 1.3 [ edit ] If you have an HDMI 2.1 compatible device, like a PS5 or Xbox Series X, you need to make sure that you find a cable that can pass a 4K/120Hz (or 8K/60Hz) signal instead. MHz was the maximum TMDS character rate allowed in version 1.2a of the HDMI Specification and earlier. In version 1.3, the maximum allowed speed was increased to 340 MHz, and in version 2.0 it was increased to 600 MHz. These are only the maximum speeds permitted by the specification; individual devices may be limited to any speed within the maximum allowed.

a b Bob O'Donnell (December 2006). "White Paper– HDMI: The Digital Display Link" (PDF). Silicon Image. Archived from the original (PDF) on January 6, 2016 . Retrieved June 23, 2008.

Philips Sets Up India's First HDMI Authorized Testing Center". HDMI.org. June 12, 2008. Archived from the original on April 13, 2016 . Retrieved January 5, 2009. Type C This Mini connector is smaller than the type A plug, measuring 10.42mm × 2.42mm but has the same 19-pin configuration. [5] :§§4.1.9.4,4.1.9.6 It is intended for portable devices. [3] [5] :§4.1.1 [62] The differences are that all positive signals of the differential pairs are swapped with their corresponding shield, the DDC/CEC Ground is assigned to pin 13 instead of pin 17, the CEC is assigned to pin 14 instead of pin 13, and the reserved pin is 17 instead of pin 14. [5] :§4.1.10.5 The type C Mini connector can be connected to a type A connector using a type A-to-type C cable. [5] :§4.1.1 [62] Micro HDMI receptacle Type D This Micro connector shrinks the connector size to something resembling a micro-USB connector, [62] [63] [64] measuring only 5.83mm × 2.20mm [65] :36,fig. 4.1.9.8 For comparison, a micro-USB connector is 6.85mm × 1.8mm and a USB Type-A connector is 11.5mm × 4.5mm. It keeps the standard 19 pins of types A and C, but the pin assignment is different from both. [66] a b "HDMI Interface Extends Exceptional Digital Quality with Single-Cable Simplicity to Over 4 Billion Consumer Devices". HDMI Licensing, LLC. January 6, 2015 . Retrieved October 29, 2021. Although no maximum length for an HDMI cable is specified, signal attenuation (dependent on the cable's construction quality and conducting materials) limits usable lengths in practice [70] [71] and certification is difficult to achieve for lengths beyond 13m. [72] HDMI 1.3 defines two cable categories: Category 1-certified cables, which have been tested at 74.25MHz (which would include resolutions such as 720p60 and 1080i60), and Category 2-certified cables, which have been tested at 340MHz (which would include resolutions such as 1080p60 and 4K30). [5] :§4.2.6 [63] [73] Category 1 HDMI cables are marketed as "Standard" and Category 2 HDMI cables as "High Speed". [3] This labeling guideline for HDMI cables went into effect on October 17, 2008. [74] [75] Category 1 and 2 cables can either meet the required parameter specifications for inter-pair skew, far-end crosstalk, attenuation and differential impedance, or they can meet the required non-equalized/equalized eye diagram requirements. [5] :§4.2.6 A cable of about 5 meters (16 feet) can be manufactured to Category 1 specifications easily and inexpensively by using 28 AWG (0.081mm 2) conductors. [70] With better quality construction and materials, including 24AWG (0.205mm 2) conductors, an HDMI cable can reach lengths of up to 15 meters (49 feet). [70] Many HDMI cables under 5meters of length that were made before the HDMI 1.3 specification can work as Category 2 cables, but only Category 2-tested cables are guaranteed to work for Category 2 purposes. [76]

Whether you want to build your own home theater or just learn more about TVs, displays, projectors, and more, we've got you covered. In addition to the features in common with HDMI (such as HDCP encrypted uncompressed high-definition video and eight-channel surround sound), MHL also adds the provision of power charging for the mobile device while in use, and also enables the TV remote to control it. Although support for these additional features requires connection to an MHL-enabled HDMI port, power charging can also be provided when using active MHL to HDMI adapters (connected to standard HDMI ports), provided there is a separate power connection to the adapter. Why you can trust TechRadar We spend hours testing every product or service we review, so you can be sure you’re buying the best. Find out more about how we test. HDMI:: Manufacturer:: HDMI Alt Mode for USB Type-C Connector". www.hdmi.org. Archived from the original on September 19, 2016 . Retrieved September 18, 2016. A good example to use here is the difference between Monster Hunter: World on Xbox One and Xbox Series X. In this example, performance has nothing to do with the HDMI cable but instead your TV's refresh rate.

Want to be sure that you get the highest resolutions and frame rates? Buying a great HDMI cable could make all the difference

HDMI 2.1a was released on February15, 2022, and added support for Source-Based Tone Mapping (SBTM). [129] [130] HDMI Version 1.2 was released in 2006 and added support for higher resolutions, increased bandwidth, and additional color spaces. It also introduced the HDMI Ethernet Channel, which allows devices to share an Internet connection without a separate Ethernet cable. Version 1.2 is still in use today, but it has been superseded by later versions. HDMI Version 1.3