What is HDMI 2.1? All you need to know about HDMI 2.1

HDMI 2.1 is a new step forward compared to normal HDMI, because it will help upgrade the resolution of the TV to 4K, 8K. You can easily transmit high-quality audio and video with the HDMI 2.1 cable. So what is HDMI 2.1? Learn all you need to know about HDMI 2.1 with Tnhelearning.edu.vn now!

What is HDMI 2.1? Features of HDMI 2.1

HDMI stands for High-Definition Multimedia Interface, also known as high-definition multimedia interface . HDMI allows the connection and transmission of images and audio between devices through a cable, which you often call an HDMI cable.

HDMI 2.1 is capable of outputting quality images up to 10K, 8K, 4K thanks to the data transmission bandwidth.

Features of HDMI 2.1

• HDMI 2.1 gives good picture quality up to 10K, 8K/60fps or 4K/120fps thanks to the support of 48Gbps data communication, about 3 times the current HDMI 2.0 standard of 18Gbps .
• The scan frequency of HDMI 2.1 is 120Hz, so it is easy to respond to devices with 10K resolution, having twice the processing capacity of HDMI 2.0 cables.
• HDM 2.1 is capable of displaying micro pixels.
• HDMI 2.1 also has a Dynamic HDR feature that corrects and synchronizes image information frame by frame (based on Dolby Vision, HDR10+ technologies) to help users experience vivid colors and contrasts.

• High bandwidth, so uncompressed 8K video can still transmit all data through the cable.
• HDMI 2.1 optimizes the image refresh rate for peripheral devices that require as low a latency as possible. Typically, virtual reality glasses VR, AR, gaming.
• Audio via HDMI 2.1 upgradable to eARC standard.
• Enhanced Audio Return Channel supports 32 channels of uncompressed audio. Get the most out of a 5.1 or 7.1 speaker system with Dolby Atmos sound technology.

Notes when using HDMI 2.1 . cable

To get the most out of the HDMI 2.1 bandwidth, you should choose an ultra-high-speed HDMI cable. You can still use 2.0 cables, but the connection and transmission speed is reduced to 1/3 compared to the HDMI 2.1 line.

However, the new high-speed HDMI cable will not change the size or connection type of the HDMI cable jack and port, perfectly suitable for connecting with conventional devices of the past.

Difference between HDMI 2.1 and HDMI

The HDMI connection port is used for TVs with 4K UHD screen technology . Therefore, to get picture quality, 4K UHD content is required to have an HDMI 2.0 connection port .

From there, the HDMI 2.0 connection port was born. When using the content HDMI 2.0 connection port, the picture quality has a screen refresh rate of 50 – 60Hz .

Currently, TV screen technology has developed 8K screens that require a large bandwidth and stronger capacity to be able to transmit data and 8K content. Therefore, the HDMI 2.1 connection port was born. HDMI 2.1 has twice the transmission rate of HDMI 2.0 to support better quality video.

Outstanding Features of HDMI 2.1

Variable Refresh Rate (VRR)

HDMI 2.1 possesses many outstanding features to optimize the screen refresh rate. Therefore, HDMI 2.1 is capable of meeting the requirements of low-latency peripherals such as VR, AR, etc. The experience of playing games and watching movies in virtual reality will be realistic. and less eye damage.

Variable Refresh Rate has the ability to eliminate stutter and lag to provide a smoother, clearer and more detailed TV viewing experience.

Auto Low Latency Mode (ALLM)

Auto Low Latency Mode, when activated, will give the picture quality at the most optimal frequency and minimum latency when playing games or using virtual reality applications, smooth realistic content.

ALLM mode is a mode that allows the TV to handle low latency when receiving signals from dedicated devices. This is also one of the features dedicated to gaming or conferences.

Before the user can use the ALLM mode, the TV must be manually adjusted to the game mode before starting. If you want to return the TV to daily TV use mode, follow the steps to switch back to normal mode.

Quick Frame Transport (QFT)

Quick Frame Transport is a feature of fast frame transmission, reducing the delay of the TV, when using this feature will help you minimize the time to receive the signal faster.

Because of its high-speed frame transmission and reduced display latency, QFT helps reduce jitter and lag for images and videos. Instead of users having to set up on the TV, even on the HDMI cord, this feature is also supported. Thereby helping users have a better and more interactive virtual reality game experience.

Quick Media Switching (QMS)

QMS is a technology developed to solve specific problems. You can understand the following when you are watching a movie trailer on a certain Streaming service. There is a phenomenon where different videos have different frames. Normal videos will have speeds that fluctuate in the range of 24 FPS, 29 FPS, 50 FPS and 60 FPS.

If you want oscillating speed conversion, the HDMI speed must also be pacing and synchronizing and creating a gap.

QMS technology developed based on the mechanism of VRR helps to change the frame rate without disrupting the user experience. The movement speed is very fast and smooth, enhancing the feeling for the user.

HDMI 2.1 Audio: ARC and eARC

For the audio of HDMI 2.1 there is support with the eARC feature with 32 channels of uncompressed audio , combined with a 5.1 or 7.1 speaker system. This is a more advanced audio version than the HDMI version with ARC audio.

As for HDMI ARC , which was released in 2009. This type of HDMI is considered a different version of HDMI 1.4. HDMI cable is a one-way signal line for audio and video, the signal comes from a source.

Today’s ARC has been upgraded and developed into a two-way path that allows the TV to transmit audio to a receiver, processor or soundbar. When using ARC, users can enhance the audio experience from the Streaming app itself on the TV.

Hope this article helped you understand more about what HDMI 2.1 is and all you need to know about HDMI 2.1 . If you have any questions, feel free to comment!