Is HDMI 2.1 necessary? Future development trend of HDMI2.1 interface
Source: | Author:business-101 | Published time: 2021-09-01 | 1620 Views | Share:
Is HDMI 2.1 necessary? Future development trend of HDMI2.1 interface

With the rapid development and popularization of 5G and the continuous innovation of high-definition video technology, the HDMI standard is also constantly updated and iterated. The new generation HDMI2.1 interface has reached a new height in video output performance. More and more digital video and game device manufacturers have included it in the device standard interface, such as XboxSeriesX and PS5 game consoles, NVIDIARTX30 series and AMDRX6000 series video cards. So far, the corresponding ultra-high speed HDMI2.1 cable has also entered the fast lane of development.


HDMI interfaceHDMI2.1 cable bandwidth, as the 18Gbps of HDMI2.0 standard, has been upgraded to 48Gbps, which can carry higher resolution and faster refresh rate, including 4K@120Hz 、 8K@60Hz Or 10K resolution.In addition, with the support of dynamic HDR, eARC (audio transmission channel), VRR (variable refresh rate), QMS (fast media switching), QFT (fast frame transmission), ALLM (automatic low delay mode) and other technologies, HDMI2.1 cable makes the end-to-end audio and video transmission of HDMI2.1 more smooth, enabling an immersive experience in image dynamics, light and shade contrast, and audio-visual effects.


At present, many manufacturers have increased the screen refresh rate of HDMI2.1 display devices from 60Hz to 120Hz, and the game images refreshed per second are twice the normal 60Hz, which also requires more powerful performance support. Standard HDMI 2.1 cable support 4K@120Hz The refresh rate ensures a smoother end-to-end audio and video transmission and faster response speed of HDMI2.1. Especially when playing FPS games, the transition of the game screen is smooth, delicate and stable, showing more action details every second, helping players accurately target objects and seize opportunities.


In addition to HDMI high brush output, HDMI2.1 cable can also be used with all previous HDMI specification I versions, and is widely used in HDMI interfaces such as TVs, set-top boxes, projectors, laptops, etc. to meet the needs of home theaters, large screen games, conference projection and other scenes.


Whether the HDMI wire version matches the device interface will certainly affect the output effect. For example, if the HDMI2.1 device matches the HDMI2.0 line, the HDMI2.1 effect cannot be output. The final data transmission resolution, bandwidth, dynamic range and other HDMI2.0 can be used as reference. Therefore, when selecting HDMI wire, you must determine the HDMI interface version and compatibility of the device.