HDMI interface successive specs changes and the differences between each version

Tyler123

Member
The HDMI2.1 interface specification will be released in 2018, so let's take a look at the changes from HDMI1.0 to HDMI2.1.

HDMI version evolution
HDMI 1.4 and 2.0 are the most common
HDMI 2.0 A supports 4K HDR
HDMI 2.1 supports 10K resolution

The world's first blu-ray player, Samsung bd-p1000, was launched in 2006 and has been equipped with HDMI. Since then, most blu-ray players and full hd playback equipment have been equipped with HDMI.

HDMI 1.0

Support for blu-ray and full hd 1080/60p

The earliest version of HDMI, launched in December 2002, is designed for the full hd software such as blu-ray. The most important feature is the simultaneous integration of video and audio transmission. Compared with DVI and DisplayPort pure video transmission interface on the computer, it is more suitable for the use of audio and video equipment. HDMI 1.0 already supports DVD and blu-ray video, the highest bandwidth reaches 4.95 Gbps, among which 3.96 Gbps can be used for transmission video stream, which can support 1080/60p or UXGA resolution. Audio support for 8 channel LPCM 24bit/192kHz, in other words has been broadcast to multi-channel hi-res, the specification is quite strong.

Dvd-audio and SACD Audio were both supported after a minor redesign of HDMI, but neither format became popular.

HDMI 1.1

New DVD Audio

Launched in May 2004, it added support for dvd-audio. Dvd-audio stores PCM music from 16bit/ 44.1khz to 24bit/192kHz on DVD, which, like SACD, was a successor to the CD format, but unfortunately neither format became popular.

HDMI 1.2

Support SACD

Launched in August 2005, it added support for 1-bit audio, or SACD, audio streaming for up to eight channels.

HDMI CEC allows one remote control to control all compatible equipment, which is quite convenient.

HDMI 1.2 A

Compatible with CEC multi-device control

A small revision of HDMI 1.2 was launched in December of the same year. It supports all CEC(Consumer Electronic Control) functions, so that compatible devices can be fully controlled by a remote Control when connected with HDMI.

The new generation of televisions, blu-ray machines and other equipment can support Deep Color technology, so that the display can be more colorful.

HDMI type-a, or the most common HDMI plug, was introduced in version 1.0, while Type C(mini HDMI) was released in version 1.3 and Type D(micro HDMI) was released in version 1.4.

HDMI 1.3

Bandwidth increased to 10.2 Gbps, Deep Color and hd sound streaming supported

A major revision, introduced in June 2006, increased bandwidth to 10.2 Gbps at one breath and was able to support 30bit, 36bit, and 48bit xvYCC, sRGB, or YCbCr Deep Color technology. It also supports streaming of Dolby TrueHD and dts-hd MA HD sound, which can be decoded by a blu-ray machine via HDMI streaming audio to a supported amplifier. The subsequent HDMI 1.3a, 1.3b, 1.3b, and 1.3c are only minor changes.

The "avatar" 3-d craze has been going on for years, so many of the new features in HDMI are optimized for 3-d.

HDMI 1.4

Support 4K/30p, 3D and ARC

HDMI 1.4 is one of the most popular versions in the last few years. It was released in May 2009 and already supports 4K resolution, but only 4,096 × 2,160/24p or 3,840 × 2,160/24p/25p/30p. At the beginning of the 3D boom, HDMI 1.4 also supported 1080/24p and 720/50p/60p 3D images. A very useful ARC(Audio Return Channel) feature has been added to Audio, allowing TV Audio to be transmitted back to the amplifier via HDMI. It also adds a 100Mbps network connection to share Internet connections through HDMI.

HDMI 1.4 A & 1.4 B

Add a small version of the 3D function

The 3D craze started by "avatar" continued all the way, so in March 2010 and October 2011 respectively, a small revision of HDMI 1.4a and 1.4b were launched, which are mainly designed for 3D, such as adding two kinds of 3D formats for broadcasting and supporting 1080/120p 3D images.

Starting from HDMI 2.0, video resolution is supported to 4K/60p, which is also the version of HDMI commonly used by many TVS, power amplifier and other equipment.

HDMI 2.0

True 4K version, bandwidth increased to 18 Gbps

HDMI 2.0, also known as "HDMI UHD", was released in September 2013. Although HDMI 1.4 already supports 4K video, it only supports the lower specification of 30p. HDMI 2.0 increases the bandwidth from 10.2 Gbps to 18 Gbps, supports 4K/60p video, and is compatible with rec.2020 color depth. At present, many equipment, including TV, power amplifier, blu-ray machine, are using this version of HDMI.

The change to HDMI 2.0a is the inclusion of HDR support.

HDMI 2.0 A

Support the HDR

In April 2015, a small version of HDMI 2.0 was introduced with HDR support. At present, most of the new generation of televisions that support HDR will adopt this version, and the new power amplifier, UHD blu-ray machines, etc., will also be equipped with HDMI 2.0a terminal. The next HDMI 2.0b is the Hybrid log-gamma broadcast HDR format, which was originally supported by the HDR10 specification.

The HDMI 2.1 standard, announced earlier this year, will support 8K video resolution.

HDMI 2.1 significantly increases the bandwidth to 48Gbps.

HDMI 2.1

Support 8K/60Hz, 4K/120Hz video, Dynamic HDR(Dynamic HDR)

The latest version of HDMI, released in January 2017, has a significantly improved bandwidth of 48Gbps and can support images up to 7,680 × 4,320/60hz (8K/60p) or higher frame rate images at 4K/120Hz. HDMI 2.1 will continue to return the original HDMI A, C and D plug designs. Moreover, new Dynamic HDR technology is supported. Compared with the current "static" HDR, "Dynamic" HDR can further improve the performance of the same light-dark level according to the light-dark distribution of each frame. In terms of sound effects, HDMI 2.1 supports new eARC technology that allows you to Return object-based sounds like Dolby Atmos rather than the existing ARC(Audio Return Channel).

HDMI2.1 version is compatible with all devices that support HDMI2. HDMI2.1 version supports up to 10 resolutions, including 8K resolution refresh rate of 60Hz, 4K resolution refresh rate of 120Hz, support for dynamic HDR and adaptive refresh rate technology, bandwidth up to a staggering 48Gbps, plus more environmentally friendly anti-electromagnetic interference technology.

Dynamic HDR technical support ensures that each frame of the video is at its optimal value, including depth of field, detail, brightness, contrast, and a wider range of colors.

Supports up to 10K resolution, 8K resolution refresh rate of 60Hz, 4K resolution refresh rate of 120Hz, supports commercial AV video company, enterprise and special purpose.
 
Last edited:
Top