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Large-scale high-end KVM switcher manufacturers parse different versions of HDMI for you



HDMI Screen Splitter Company

1. HDMI version 1.1

This is the first version of HDMI. The original version of HDMI 1.1 is the most. High only supports 1080i standard signal, but can not fully support 1080P high definition specification. In the past few years, it can basically meet the needs of users. Today, only supporting 1080i format can not meet the needs of audiovisual enthusiasts.

The original version 1.1 of HDMI is very good, although there are some problems in compatibility, supporting 800 *600, 1024 *768 and other standard resolutions. Even with the 1366 *768 resolution used by low-end flat-panel TVs at this stage, the original HDMI excuse is no longer acceptable for compatibility. What's more, LCD TV equipped with this excuse can't perform point-to-point output when broadcasting high-definition signals, and the pictures presented will also appear blurred, inaccurate color and other issues.

2. HDMI version 1.2

The introduction of HDMI version 1.2 largely solves the problems of low resolution and poor compatibility with computer devices supported by HDMI 1.1. HDMI Standard Organization launched HDMI 1.2 standard in 2005. This interface based on t-tOMtT2 standard achieves 165 MHz bandwidth on single link, can provide 4.95 Gbps data transmission rate, and can fully support 1080p full HD video signal.

By modifying the standard, HDMI version 1.2 also enhances the compatibility of PC display interface, which can easily support all display resolutions including 1366 *768, and can fully support the point-to-point mode of display screen.

3. HDMI Version 1.3

HDMI version 1.3 is the most widely used standard nowadays, which is also the HDMI interface used by most flat-panel TV. HDMI version 1.3 brings the greatest change. The biggest change is to increase the frequency of single link bandwidth to 340 MHz, which will enable these LCD televisions to obtain 10.2 Gbps of data transmission. The line of version 1.3 consists of four transmission channels, one of which is clock channel, the other three are TMDS channel (minimizing transmission differential signal), and their transmission speed. They are 3.4 GB BPS. So 3 pairs is 3*3.4=10.2 GPBS, which can greatly expand the 24-bit color depth supported by HDMI version 1.1 and 1.2 to 30, 36 and 48 bits (RGB or YCbCr). HDMI 1.3 supports 1080P; some less demanding 3D supports it (not in theory, but in practice).


4. HDMI Version 1.4

HDMI 1.4 already supports 4K, but due to the bandwidth of 10.2Gbps, 1080p (1920x1200@30Hz-50Hz) can only reach 3840*2160 resolution and 30FPS frame rate. HDMI 2.0 expands the bandwidth to 18Gbps, which can support 3840*2160 resolution and 50FPS, 60FPS frame rate. (The 8-way MWT hdmir matrix switcher perfectly supports 4KX2K. ) Plug and Play and Hot Plug Support 720P, 1080i@60Hz, 1080p (1920x1200@70Hz) (3840x2160@60fps@24Hz)/

25Hz/30Hz) high resolution; support full HD and 3D display, (4Kx2K@50/60fps@24Hz), support the smooth operation of super-large games such as PS3. Supports Dolby True-HD, DTS-HD Masteraudio, and supports up to 32 channels in audio, as well as up to. 1536 kHz sampling rate. Other major improvements: dual video streams can be transmitted synchronously to multiple users on the same screen - multiple audio streams can be transmitted synchronously to the most.4-bit users - support 21:9 ultra-wide screen display - dynamic synchronization of video and audio streams - CEC expansion can better control consumer electronic devices through a single control point.

HDMI 2.0 does not define new data lines and interfaces, so it can maintain perfect downward compatibility with HDMI 1.x. The existing class II data lines can be used directly. As for whether the current equipment can be upgraded to HDMI 2.0, there is no trend in this regard at present, which requires manufacturers to update the hardware and firmware. HDMI Forum Inc. also points out that HDMI 2.0 will not replace HDMI 1.x, but based on the enhancement of HDMI 1.x. Any device that wants to support HDMI 2.0 must first guarantee basic support for HDMI 1.x.

Xiaohe Science and Technology's main product series: VGA/HDMI screen splitter, screen splitter, synchronizer, matrix, extender, 3C electronic products, digital optical fiber audio line, A/V audio line, HDMI line, HDMI distributor, HDMI switcher, HDMI converter, HDMI matrix, HDMI extender, HDMI wireless HDM line. I transmitter, conversion between various audio and video formats such as VGA/DVI/YUV/YPbPr/SPDIF, home audio and video wireless transmitter and so on, the product level is divided into ordinary consumer level, high-end fever level, engineering application level, radio and television level.


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Dongguan Xiaohe Technology Co., Ltd

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                           Mr. He 13530356726

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