2015年11月22日星期日

How to Use an HDMI Splitter

HDMI Splitter is used to take a single source (such as a BlueRay Player, Cable Box, or Satellite box) and distribute that HDMI signal to multiple TVs.  Most splitters if needed can also be cascaded to further expand such splitting capability.  The use of a higher-grade cable when using a splitter is highly recommended due to the added resistence of connecting your devices through multiple ports. A splitter should not be confused with an HDMI Switch (which is used to connect multiple HDMI source devices to a single TV).

HDMI splitter provides a great solution for people to share the movies or videos on different HD TV as HDMI splitter allows you to plug one resource device into two or more HDMI displays. Then you can also use a HDMI splitter to show what is playing on a Blu-ray player on multiple televisions. So hdmi splitter is widely applied to home entertainment, supermarkets, classrooms, etc. 1×2 HDMI splitter and 1×4 HDMI splitter are very common to see, while 8 port HDMI splitter is most used for special occasion like supermarket and engineering spot. Now 3D HDMI splitter is very popular with people as 3D movies are hot these days.


Split Connections Into TV

Turn off your television and any HDMI devices that you plan on connecting to your HDMI splitter.
Plug your HDMI splitter into an available HDMI port on the back or side of your television. This will be the destination device.

Plug any HDMI devices into the available HDMI ports on your HDMI splitter. These will be the source devices. You can only plug two sources into an HDMI splitter.

Turn your television on and then turn on any sources you have connected to the HDMI splitter. Scroll through your television inputs until you arrive at the HDMI input that corresponds with where you connected the HDMI splitter.

Press the button on either the HDMI splitter box or the remote control that came with the HDMI splitter that switches between the sources connected to the HDMI splitter. You should notice the display on your screen alternating between your sources. It may take a few seconds after switching the devices for the desired source to be displayed.

Split Device Feed
  1. Turn off the device you are plugging the HDMI splitter into. This will be the source device.
  2. Plug the HDMI splitter into an available HDMI input on the device that you would like to use as the source device.
  3. Plug one HDMI cable into an available input on your HDMI splitter for each destination device--the devices you want the source device to be displayed and heard on. 
  4. Plug those HDMI cables into an available HDMI input on the devices you would like to display the audio and video feed from the source on. For example, if you want to display the audio and video feed from one Blu-ray player on two screens, you would plug the HDMI splitter into the Blu-ray player. Plug two HDMI cables into the HDMI splitter and then plug the other end of those cables into available HDMI inputs on the destination televisions.
Turn on your source device and your destination devices.

Scroll through the inputs on your destination devices until you arrive at the HDMI input that corresponds with where you plugged the HDMI cable into each destination device.

Recommed you one best-seller HDMI Splitter For you



1x2 1080P HDMI Audio Splitter Support 3D 4K

The 2 port HDMI Splitter is great if you just need one more HDMI port to complete your setup. The splitter features a pair of HDMI-in ports and support resolutions up for 1080p.

Specs:


2 HDMI-in ports
Support up to 1080P
Compact unit
MSRP: $25.15

Conclusion

An HDMI splitter is a cost effective way to distribute an HDMI signal to numerous displays without having to purchase more expensive and duplicative devices. A few things for buyers to consider when purchasing an HDMI splitter include how many ports the item has, what type of power source it relies on, and which type of HDMI cables it is compatible with.

2015年11月19日星期四

HDMI Matrix System Architectures You Must Know

Prior to selecting an HDMI Matrix switch, professional A/V installers and system integrators should be familiar with the three commonly used architectures. The first type is a Splitter/Switch‐based Matrix. In this architecture, the TMDS (Transition‐Minimized Differential Signaling) signals generated from HDMI sources are processed and received by an HDMI splitter chip and is then passed to each HDMI switch chip. The advantage of this architecture is lower BOM (bill of materials) costs. Additionally, the splitter chip can provide the HDCP (High‐Bandwidth Digital Content Protection) key which improves HDCP development. The downside to this architecture occurs in Matrix systems greater than 2x2 where signal integrity (SI) issues are often experienced. With this architecture, sample applications include low ‐port environments such as 2x2 installations found in home theaters, small scale digital signage environments as well as financial applications.


The second type is FPGA  based  (Field  Programmable Gate Array) Matrix where high speed TMDS signals are received by the HDMI Rx PHY chip and then converted into relatively low speed TTL (Transistor–Transistor Logic) buses separated for audio and video, which move the troublesome SI issues of the crossover points between TMDS signals to the easier handled SI issues of the crossover points between TTL signals. The benefit of this architecture lies in the fact that the signal quality of TMDS signals is maintained on the PHY chips which provides higher compatibility and cascade levels. The downsides to this archecture are higher cost and interconnection complexity since 4 pairs of TMDS signals are transformed to a 40‐bit TTL video bus and a 10 bit audio bus.

The third type is Crosspoint‐based Matrix. In this architecture, the TMDS signals are directly handled by a cross‐point chip, which also provides equalizer functionality for compensating the signal attenuation and pre‐emphasis function to boost up the single transition to the sink,which improves the quality of TMDS signals. The two advantages of this architecture are decreased TMDS interconnect complexity and improved SI via EQ (Equalizer) and preemphasis (PE) functions. The main weakness of this architecture is the associated high cost as well as lack of support for HDCP. This architecture is recommended for Matrix systems greater than 8x8, such as 16x16 or 32x32, suitable for meeting rooms, casinos and digital signage environments.

Hdgenius.biz HDMI Video Matrix Switch

Hdgenius.biz line of professional A/V products provides all of the components needed to build a multitude of flexible, integrated solutions for a range of video related applications. In addition to digital signage and home theater applications, HDMI Matrix Switch is also ideal for broadcasters, system integrators, and educators to extend and deliver high resolution audio and video signals. The HDMI Matrix Switch products are also targeted at manufacturing, healthcare, transportation, corporate conferencing and financial institutions.

HD344 3D 4x4 HDMI Matrix Switch with Remote Control

The HD344 is a 4x4 HDMI Video Matrix switch that offers a convenient solution to route high definition video and audio from any of four HDMI sources to any of four HDMI displays.

The HD344 enables users to connect four HDMI devices (such as an HD camcorder or satellite/cable box, Blu‐ray player, home theater PC, standalone streaming media player, or gaming console) to four HDMI monitors, displays, projectors or HDTVs at the same time. The remote control and convenient front panel push buttons allow users to easily cycle through HDMI sources and displays, while the front panel LEDs indicate the source device for each display at a quick glance.

Applications of HD344 3D 4x4 HDMI Matrix Switch with Remote Control

Home Entertainment: With more and more high-definition devices entering the home theater market, the need for simultaneous access to different A/V sources has become increasingly important.

Medical/Hospitals: From high quality static imaging required by diagnostic displays to closed circuit health information content broadcast throughout a hospital's waiting area, there are many uses for Hdgenius.biz professional A/V solutions in the healthcare industry.

Education: In a classroom setting, an HDMI Video Matrix switch can be leveraged to transmit examination questions (video and audio) from remotely located computers to as many eight classrooms where students can read the questions from multiple high definition monitors.

Restaurants: For sports bars and other restaurants that need to display various sports programming to several displays, an HDMI Video Matrix switch such as the HD344 HDMI Matrix Switch can be leveraged.

Digital Signage: A video installation in a retail environment allows user to enhance selling power with in store and shopping mall digital advertising. Hdgenius professional A/V solutions, including the HD344 HDMI Matrix Switch are flexible and scalable, allowing digital signage installations to be tailored to meet the needs of specific locations or demographics.

Conclusion

With the HDMI specification firmly supplanting older technologies such as VGA and DVI,research has pointed to a growth trend of HDMI equipped devices as well as an uptick in the global audiovisual market. HDMI Video Matrix switches offer better signal strength and more sophisticated routing capabilities, addressing the sophisticated  needs of today's A/V professionals and installers.



2015年11月18日星期三

What's the Difference Between VGA and HDMI

There are lots of differences between VGA and HDMI. The first and probably most important is that VGA uses an analog signal and HDMI uses a digital one. Due to that, running a VGA signal directly into a HDMI connector on a monitor could actually damage it, because the analog signals is at a higher voltage level.

The second difference between VGA and HDMI is that VGA is just video, while HDMI contains channels for both video and stereo audio. So, when you connect them together, you need to bring the audio signal from the device which has the VGA connecter, via a separate cable, and connect it to the HDMI connector.

Another difference is that the wires in a VGA connector and the wires in a HDMI connector don’t match up. You can’t just connect the wire from pin #1 from one to pin #1 on the other and expect it to work, which is what those adapter cables do. In fact, you can’t connect the wire from pin #1 on the VGA connector to any of the pins on the HDMI connector, because they aren’t the same kind of signal.

HDMI Connector
VGA connector

There is only one kind of VGA connector. Often colored blue, it has both a male, 15-pinned form and a female 15-holed form. The pins/holes run across three rows, with each pin/hole performing a different function, such as providing red/green/blue (RGB) color information, power, vertical or horizontal syncing, and electrical grounding. 

Of course, the other big difference between the two is the native resolution between VGA and HDMI. When we use the term “native resolution” we’re talking about the actual number of rows and columns of pixels (dots of color) which appear on the screen. Many types of video equipment, from computer cards to monitors to video projectors can receive signals that are a higher or lower resolution, but it will always be presented in that native resolution.

Originally, VGA was created with four different graphics modes:
  • 640 x 480 pixels in 16 colors
  • 640 x 350 pixels in 16 colors
  • 320 x 200 pixels in 16 colors
  • 320 x 200 pixels in 256 colors
That may not seem like much, but the predecessor to VGA was CGA, which only had 320 x 200 pixels. So, stepping up to 640 x 480 was a great improvement. Since then many newer forms of VGA have been developed including:
  • SVGA (super VGA) which is 800 x 600 pixels
  • XGA (extended graphics array) which is 1024 x 768 pixels
  • WXGA (wide extended graphics array) which is typically 1280 x 768 or 1280 x 800 pixels, allowing for wide-screen monitors for movies
All of these different formats (and there are lot more than this) are still considered part of the VGA family. They all use the same D-subminiature connector and any sending device with this VGA connector can be connected to any display device which has a VGA D-subminiature connector.

HDMI, which was developed predominantly for use with HDTV, comes in two basic flavors:
  • 720p, which has 720 horizontal lines of pixels, making the actual resolution 1280 x 720
  • 1080p, which has 1080 horizontal lines of pixels, making the actual resolution 1920 x 1080
As you can see, WXGA and some of the even newer, larger VGA formats have as much resolution as HDMI does, but those aren’t common. Most VGA outputs today are SVGA or XGA, with their lower resolution.

When a monitor can’t display as many lines of pixels as is being presented to it, it either cuts off the edges of the image, or more commonly cuts out some of the rows and columns of pixels, allowing the image to be presented in a way that appears correct. If the monitor has the capability of displaying more lines of pixels than what is being presented to it, it duplicates rows and columns of pixels, making the image larger.

This process of changing the number of lines of resolution from an input signal is called “scaling.” The word scaling essentially means to make it appear the same, while changing the size. Since HDTV has more lines of resolution than a typical VGA signal, it is necessary to scale the signal at the same time it is being converted from analog to digital.

How do We get From VGA to HDMI?

It's clear that a number of different things have to happen, all at the same time, to convert a VGA signal to HDMI; things that require more than connecting the two together. To do this, it is necessary to pass the VGA signal through a converter, which will take the VGA analog video signal and the stereo audio signals and convert them into digital signals which can then be sent out across a HDMI cable for connection to a monitor with a HDMI connector.

These converters“read” the analog signals being sent into them from your computer or other device, then create signals in digital which can be understood by your HDMI monitor. This process happens seamlessly, without any other input from you, other than connecting the device.

At the same time that these devices are converting the signal from analog to digital and from one format to another, they are scaling the image to fit the size and format of the monitor. This can also include the necessary scaling to accommodate widescreen monitor resolutions.

You must be careful when selecting one of these converters to insure that the device has the actual input connectors that you need. Some VGA to HDMI converters have what is known as a composite video input (a round, yellow “RCA” connector), others have a component video input (the three different colored “RCA” connectors), in either case, they’re trying to convert to a digital HDMI output. Although those input types aren't technically “VGA” they are often referred to as VGA to HDMI converters.

Now the following are some VGA to HDMI converters from Hdgenius.biz

About HDGENIUS.BIZ

Hdgenius, Inc. is a world-wide leading supplier and developer that specializes in offering of all kinds of High Definition video products at the best price with top quality,including HDMI extenders, HDMI/VGA splitters, HDMI/VGA/SDI converters, HD security systems and so on. Hdgenius.biz aims to be a creative culture to provide customers with comprehensive one-stop solutions.

2015年11月12日星期四

HDMI Splitter Tutorial

What Is Splitter?

With the development of HDMI as the premier signal format for high definition video, the range of options for boosting, modifying, or regulating that signal have grown into an exciting and dizzying array. One of the simplest and most versatile devices for modifying HDMI signal is the HDMI Splitter. These simple, powerful, and reliable devices are everything you need to send a single HDMI signal out to multiple displays.

Whether you want to share HDMI between two TVs in your house or set up 8 TVs for a restaurant or bar, Hdgenius.biz have the HDMI Splitter you need. Our 1x2, 1x4, 1x8, and 1x16 HDMI splitters are full featured HDMI v1.3b compatible for 1080p and 3D support. (If you are interested in HDMI splitter, welcome go to our www.hdgenius.biz online store. )

Characteristics of HDMI splitters:

It displays signals on several display units and no signal loss takes place during transference to the display unit. Display devices can use all the signals at the same time. They generally come with 1080i/p, 720i/p and 480p resolutions. A unique feature of it is that the digital signals do not get diminished with splitting. It is also simple in design and easy to install. Cable and hardware are shielded in order to avoid damage to devices. HDMI is reasonably priced and is robust. It gives high picture quality and has excellent resolution. The HDMI device only splits the original signal that is displayed on all of the connected outputs. The image quality that appears on all output devices will be the same and is not possible to control independently when coupled to an HDMI compatible device such as antennas or any kind of HD receiver.

When to Use an HDMI Splitter

The most common situation where an HDMI splitter is needed occurs when an individual has only one HDMI box and would like the signal to be broadcast to other displays, likely in other rooms or offices. For example, a DVR can be split between two displays in different rooms without having to purchase a second DVR.

An HDMI splitter is often more cost effective than buying a duplicate item. One consideration when using an HDMI splitter is the wiring needs to be run between the two displays. This is sometimes complex depending on the circumstances.

How do HDMI Splitters Work


An HDMI splitter is a small electronic device used to duplicate a single HDMI signal and output it several times. Powered HDMI splitters will act as a repeater to boost the digital HDMI signal and allow you to surpass the normal 15ft length limitations of the format. Splitters will also dynamically handle the EDID handshaking and HDCP signal that HDMI sources and displays need in order to function.

HDMI splitters take a signal in from a source device and then send that exact same signal out to multiple displays. Since HDMI as a signal format is capable of digital handshaking the splitter can read and match the signal that each display device is expecting. This cuts down on signal incompatibilities and setup hiccups, it also means that the splitters will output video at the lowest common denominator (e.g.: if you have a 720p television and a 1080p television both displays will receive a 720p input).

How Do I Use My HDMI Splitter?

 
Deploying an HDMI splitter is as simple as plugging it in, setting it somewhere unobtrusive, and forgetting about it. Imagine, for instance, that you have one Blu-ray player, cable television box, or game console in your living room. That device has one HDMI port through which it outputs video. But you have a television in the living room and a television in the den too. How do you get the signal to both displays? Simple!

All you need is a 1x2 HDMI splitter and the HDMI cables to run out to your devices. The Blu-ray player will plug into the HDMI splitter, and the HDMI splitter will plug into both televisions. Both televisions will get the same picture, full high definition; full surround sound audio; that the Blu-ray player is sending out.

Conclusion


An HDMI splitter is a very useful device that allows audio as well as video content and provides uncompressed sound and image quality. It is an excellent device which can help you connect HDTV devices, such as DVD players, D-VHS players, or set top boxes two more than one HDTV displays simultaneously.




2015年11月11日星期三

How to Connect a Laptop to a HDTV

Experience and enjoy the media of your digital devices on big display by connecting them to your HDTV. There are lots of options to connect laptop, PC or other digital devices to HDTV and there are lots of benefits too on connecting your laptop to HDTV. By connecting your laptop to HDTV you can easily watch your videos, music and movies on big screen sideways you can work on your laptop, browsing web or having conversation with your friends. In other ways, it extends your working area as well by extending your display to two or more screens. However,connecting laptop to HDTV is mostly used for watching movies and media streaming from laptop, playing games and music while working on the laptop.

There are several ways to get high-definition quality graphics from your laptop to an HDTV. It depends upon the type of laptop you have and the features it’s equipped with. Some newer model laptops come equipped with an HDMI jack, making it HDMI-ready. In this case the connection is simple. Use an HDMI cable to connect the laptop’s HDMI jack to the TV’s HDMI jack to get HD from the laptop to the TV. If the laptop does not have an HDMI jack there are many solutions for your option.



Using USB to HDMI Converter (for any laptop with USB)



Almost all the laptop has a USB port, either USB 2.0 or USB 3.0. It’s very simple to hook up your laptop to TV with a USB to HDMI adapter. The USB to HDMI converter has a audio input that will support both video and audio transmission. Just plug and play, then you can enjoy the HD movies on your bigger TV screen. One thing you’d pay attention to is, if your laptop has USB 2.0 port, you’d better choose the USB 2.0 to HDMI converter. While for those who have got the newest MacBook Pro that built with USB 3 port, it’s better to choose the USB 3.0 to HDMI adapter.

Using VGA to HDMI Converter (for laptop with VGA port)



If you don’t like to take the USB port when you just get 1 or 2 USB port on your laptop, you can use a VGA to HDMI converter to connect your laptop with TV. You can learn more about how to connect PC VGA to HD TV. (If you have interest in this product, you can go to www.hdgenius.biz have a look)

Using a Mini DisplayPort/ Thunderbolt to HDMI Adapter (For Mac Laptops)


For Apple fans, your Macbook or other Mac laptop/PC has built with a mini displayport or thunderbolt. In this case, try Mini DisplayPort/ Thunderbolt to HDMI Adapter. This allows you to send high-definition quality graphics from your Mac laptop to your HDTV.

So, that was about connecting your computer/laptop/PC to your TV or HDTV. Do you have any experience in connecting your PC to TV? Did you face any problem while doing that? Do you know of any other methods or tricks to do so? Do let us know in the comments. Also, feel free to ask any questions or doubts you might have regarding the process.

About Hdgenius.biz

Hdgenius.Inc is a world-wide leading supplier and developer that specializes in offering of all kinds of High Definition video products at the best price with top quality,including HDMI extenders, splitters, converters, cables, HD security systems and so on. HDGenius aims to be a creative culture to provide customers with comprehensive one-stop solutions.
As a reliable HD video products supplier and developer, HDgenius engages in High Definition video products R&D and service, and provide one-stop solutions to contractors and consumers. We sincerely hope to offer you a convenient one-stop service and comfortable and safety life with our high-quality products. Welcome to cooperate with us!


2015年11月10日星期二

Why Use HDMI Extender

What is HDMI Extender?

HDMI stands for High Definition Multimedia Interface. So this HDMI extender is a single cable that transmits video and audio signals over to the television. So your television can be placed be far away isolated from the other accessories. One can use analog cables instead of HDMI extender to connect the components to your television but then there would be a lot of cables. This will prove to be a lot of headache when the wires will get tangled up eventually. That is why it is best to use HDMI extender because there is only one cable.

The purpose of HDMI is to transfer the digital video signal from a source to your television.  The cable you use is very likely only a few feet long and rather stiff.  It also only allows you to connect to a single device.  That means you have to disconnect and reconnect each device you want to use for viewing. 

If you want to be able to watch HD video on a set in another room you will need to use an HDMI extender and a Cat5e/Cat6 cable to “extend” the distance.  Another option for connecting multiple HDMI LCDs combines the function of an HDMI Extender and a splitter, called an HDMI splitter Extender. Certain commercial and military applications may require extending distances over 900 feet.  This requires a fiber optic HDMI extension solution.

How does it work?

 
All you need to do is to plug one end of the cable to the HDMI converter in the television and the other end to the Blu ray DVR. It is as simple as that. Nowadays everybody uses a high definition television and Blu ray DVR. So using HDMI extender is easiest way. In case you are using an AV receiver, then in that case you will have to put the television in the middle of the chain. One cable will connect the HDTV or high definition television to the AV receiver and another cable will connect the AV receiver to the Blu ray DVR.

Benefits of using a HDMI Extender

The main benefit of using an HDMI extender is that it allows you to put some distance between devices.  Prior to this technology, when a person wanted to view a movie using a Blue-Ray DVD player on a television in a different room they couldn’t do it.  Their only option was to purchase an additional Blue-Ray DVD player to use in the other room.  Now they can use a long range HDMI Extender with cheap, flexible Cat5e/Cat6 cable to make this connection possible.

Of even greater benefit is when they buy an HDMI Splitter Extender to view the same HDMI source on multiple TVs.  No more swapping devices.

1. Connect devices over longer distances between devices using an HDMI extender.
2. Connect multiple HD TVs using an HDMI Extender Splitter solution.

What to Look For When Purchasing an HDMI extender

Before you buy an HDMI extender there are a few things to consider

1. How far do you need to extend the connection? 
2. How many HDTVs are you planning on connecting? If you think that there is a possibility you want to connect multiple HDMI TVs you’ll need to get an HDMI Splitter Extender 
3. If your device supports 3D you will need an HDMI extension solution that supports 3D
4. Some devices require a power source so they will need to be situation near a power outlet or surge protector.  However, some devices are available with HDBaseT and provide Power over Ethernet (PoE)
5. More and more high-definition devices require that connected devices are HDCP compliant.  Be sure the HDMI extender you buy is HDCP certified 
6. Since this involves connections and other devices which might complicate your setup, buy your solution through a reputable US company with live tech support

About Hdgenius.biz

Hdgenius Inc. is one of the leading of manufacturers who specialize in developing, manufacturing & selling the full solution of video audio products. Our product line includes high definition audio and video accessories (HDMI Extender/Converter/Switch/Splitter), HD security systems and video surveillance (HD security & surveillance system, Video Recorders, Video Capture Card), and Engineering Accessories. 








2015年11月9日星期一

What are HDMI, DVI, Component Video and RGB

When it comes to carrying audio or viedo, RGB and DVI, Component Video are group that can carry viedo only, while HDMI carry both. And the image of possible highest resolutions can be supported by RGB as well as DVI, Component Video with bandwidth.

As for the difference between DVI, HDMI and Component Video, RGB, the signal is delivered in digital format by the former group, which use ones and zeros bit-stream to make the picture information being conveyed, while the latter one as analog standards and the signal will be delivered in a continuously-varying-voltages form.

But there is something in commom. Over video interface that is respective, the information in red, green, and blue is delivered on the data channels or called ‘wires’ which is separate, by all of these four. So it does not matter which standard it is.

What is HDMI ( Supports Video Audio and Data )

HDMI stands for High definition Multimedia interface. It has high Definition Digital Video and Digital Audio in single cable.

HDMI is the standard for HDTVs, and carries audio, so it's the least hassle if you're going to plug your PC into a TV at some point. If you're going 4K, the old HDMI 1.4 specification only supports 30Hz at that resolution (except with a bit of clever trickery which reduces color quality). But there's good news: HDMI 2.0 is here, and the GeForce GTX 900 series meets the specification.

If you have a video card and 4K display which support HDMI 2.0, you should be able to get 4K/60Hz with full color quality over a standard high speed HDMI cable. Not that you probably are, as 4K is still a baby, but this is important to note in case anyone tries to sell you "HDMI 2.0 cables." Pure bullshit. The HDMI 2.0 specification is not a cable specification. HDMI Forum says so: "HDMI 2.0 does not define new cables or new connectors. Current High Speed cables (Category 2 cables) are capable of carrying the increased bandwidth."

What is DVI ( Supports Video only )

DVI stands for Digital Visual Interface. Many HDTV’s, computer monitors, DVD’s and set top Boxes for Satellite or Digital Cable TV have these connectors.

    DVI was developed with VGA connector standard. DVI is designed to carry digital video data to a display.
    DVI is partially compatible with HDMI standard in digital mode (DVI-D), and VGA in analog mode (DVI-A).
    It has been superseded by HDMI in televisions. The DVI standard has wider acceptance in the PC industry (both in desktop PCs and monitors). Both DVI and HDMI deliver the signal in a digital format.

What is Component Video

Component Video:  To some extent, Component Video makes color information broken up over three components like the the way DVI and HDMI do. But the content in these compoents and that in above cable interconnects’ three data channels of the are not the same.

In the data link of DVI or HDMI, each channel stands for information in red, green and blue, which is separate yet complete, while in component video, three wire carrying three different signal with information of 'color-difference'

l  Luminance – Either 'Y' or 'green' channel;

l  Red Minus Luminance - Either 'Pr' or 'V' channel;

l  Blue Minus Luminance - Either 'Pb' or 'U' channel.

What is RGB

RGB (RGsB, RGBS, and RGBHV are variants): In a way , RGB developed from Component Video. Thare are three principal varieties of RGB, where connections of different numbers are needed.

RGBHV is the most normal one. There are five lines, which is for color, horizontal sync and vertical sync respectively. RGBHV are applied to VGA or monitors of different analog PC computer. With four connections, RGBS on one channel, combine the horizontal sync and vertical sync. But RGsB(sync-on-green), put the sync information with channel of green color. But still, these variants and component video are not compatible.

Now you may find that these four standards are pretty much similar. What makes their performance different are actually largely related to display devices as well as source’s characteristics, and of course quality of relevant cables and connectors.