High Definition Multimedia Interface (HDMI) signals are transmitted through HDMI cables made for use with Bluray, DVD, etc., high-resolution video feeds. These feeds can then be routed to computer monitors or TV screens for viewing. When you want to send HDMI signals to several screens simultaneously, you can use HDMI splitters to distribute signals among multiple screens. HDMI cables typically have one end that fits into the device output. The other end of an HDMI cable has, at least, two outputs split from one line. Alternatively, an output device can be connected to hardware splitters with an HDMI cable. These are used in conjunction with an external power source that splits signals among several display devices. Cables are easily configurable to split one line among multiple screens at once.
About HDMI SplittersHDMI splitters are capable of splitting only the original signals shown on connected devices. Images appearing on multiple screens are identical and cannot be controlled independently when screens are connected to HDMI-compatible devices like HD antennas and/or receivers. HDMI splitters should not be confused with HDMI routing switchers, which assign multiple HDMI-compatible output sources into signals that you can change either manually or by remote control. You can also direct what output is transmitted to displays. Before purchasing an HDMI splitter, you need to know if the splitter can provide the amount of data transmission necessary for each device that is connected to the splitter. For example, you should know the refresh rate, color depth, and resolution. Always use a high-quality cable to ensure your display device is capable of receiving encodings for resolutions that exceed non-digital formats. If your cables and HDMI splitter cannot send appropriate amounts of data, your signal quality will be reduced, and small resolutions may be your only option.
Installing and Using an HDMI SplitterTo begin, you'll need:
- An HDMI-compliant output source device
- HDMI-compliant displays
- HDMI cable (you could also use hardware/adapters and an alternative type of data transfer wire)
- HDMI splitter with enough output sources to accommodate your needs