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Duplicating your computer screen to your TV via wifi. Connecting the TV to the computer via Miracast. Fourth method. Image output via HDMI.

This article will help us figure out “How to display an image on a TV”, here we will look at various options for connecting to a modern TV:

We display the image using Wi-Fi (duplicating the laptop screen on the TV)

As I wrote above, this method is not for games, since there is a slight delay; if you want to play on a large TV, use an HDMI cable.

The process of connecting a laptop to a TV via Wi-Fi and displaying an image on the screen:

  1. enable WiDi in the TV settings (if there is no such option, then just activate the Wi-Fi module);
  2. install the Intel Wireless Display utility on the laptop and run it;
  3. find the wireless monitor and connect to it (you may be asked for a password, which will be displayed on the TV screen).

Miracast technology

If your laptop came with Windows 8.1 or higher operating system and also has a Wi-Fi adapter, then it supports Miracast technology.

If the TV does not have this function, then depending on the model you will need to either update the firmware or buy a Miracast adapter.

To display a laptop screen on a TV via Wi-Fi using Miracast technology, you need to:

  1. activate the Wi-Fi module on the TV;
  2. On a laptop running Windows1, move the mouse pointer to the right edge of the screen and select “Devices”;
  3. Click on the "Projector" line and then select "Add a wireless display."

How to connect a regular TV to a laptop via Wi-Fi

If you are not the proud owner of a Smart TV, and therefore your TV does not support Wi-Fi Direct, WiDi, Miracast technologies or does not have a Wi-Fi module at all, do not rush to accept the situation and connect your laptop using wires. Google has foreseen this situation and released a device called Google Chromecast, which allows you to easily transfer images from a laptop or smartphone to your TV.


All you need is to connect Google Chromecast to your TV via the HDMI connector and set up a connection to a wireless network.

Hello everybody! In this article I will tell you how to display an image from a laptop to a TV. This information will be useful because every laptop user sometimes thinks about connecting his device to an LCD or plasma TV in order to be able to watch FullHD video on the big screen.

Before describing the methods, I will hasten to talk about what happens when a connection between these devices is established. If the connectors and cables are selected correctly, the software works perfectly, then you can connect everything within 15 minutes. There are two ways to operate the TV when connected to a laptop:

  1. TV as a monitor. This feature is configured in the laptop interface, for example, the figure shows how this happens on Windows


It is possible to extend the desktop onto the TV, use the duplication mode and “send” the video player to the screen.

  1. A laptop as an external storage for media information (images, music, videos). This option is available when using SMART TVs.

Now you can talk about ways to display an image on a TV from a laptop, but I also suggest you read an article about this or that.

How to display an image from a laptop to a TV? - The first way. Connection via USB

Before you display an image from a laptop to a TV, it is important to know that this method involves using a regular USB cable. As a result of the connection, the laptop appears to the TV as a hard drive that transmits graphic and audio information to the TV.


Second way. Outputting images via Wi-Fi

Connecting a laptop and TV using Wi-Fi has two types, depending on whether the TV and laptop have a direct Wi-Fi connection. If there are no such possibilities, then it is suggested to purchase an external adapter. There is no fundamental difference in the use of these two methods. We can only note that external adapters “support the network” better.


So, let's look at these methods in more detail:

  1. Direct connection via WiDi/Miracast technology.

This technology is supported by many SMART TV models. If this technology is not included in the basic configuration, then it is possible to use a special adapter that connects to the HDMI connector. When using this technology, you must install the Intel Wireless Display program. Next, you need to activate WiDi/Miracast in the TV’s network settings.


When using this method, you do not need a router, since both devices create a common local Wi-Fi network. The laptop must be quite powerful, since these processes are demanding for it.

  1. Wi-Fi connection using a router.

When using a router, you need to configure the TV's network parameters in the corresponding section of its menu. You must also enter a password to access the network. The TV connects to the local network as a Wi-Fi device.


Note: The speed of data transfer via Wi-Fi depends on all sorts of external factors, such as wall obstacles, distance to the router, the number of simultaneously connected devices, and the like. It should be borne in mind that downloading videos is significantly demanding on connection speed. And transmission through such a FullHD connection is almost impossible.

Third way. Using a Local Area Network (LAN)

This connection method is the most convenient, as it allows you to use the SMART functions to the maximum. Here is a diagram of the local network connection:

The computer's network parameters are usually assigned automatically by the router. If this does not happen, you can configure the connection manually. But if you doubt your knowledge in this, then you should contact specialists in this field.

When connecting to Wi-Fi or a local network, to create a home media server, you should install the “DLNA” program on your laptop, which provides access to media over the network. There are a large number of programs for this purpose, for example, “Home Media Server” (“HMS”), a screenshot of the interface, which is shown in the figure.


There are also official programs specializing in creating media servers, which are available from major SMART TV manufacturers. For example, there is “AllShare” from Samsung, shown in the figure.


Fourth method. Outputting images via HDMI

This method is the most common. It transmits high and ultra high definition video. All modern laptops and TVs support it. With just one cable it is possible to transmit both image and sound. This is the main difference between it and other standards. Here are images of the HDMI ports on the TV panel and laptop.


Here are three types of existing connectors for this standard.


  • Type A, available on most TVs.
  • mini HDMI (Type B) – a smaller connector for laptops and video cameras.
  • micro HDMI (Type C) – for installation in cameras, smartphones and tablets.

To make them compatible with each other, adapters are used. This standard has two types of cables:

  • “Standard”, designed to transmit images with a resolution of 720p and 1080p at a frequency of 74.5 MHz.
  • “High Speed” - for resolutions of 1080p and 2160p and a frequency of 340 MHz.

Both species are well able to withstand distances of up to 15 meters. To increase the length even further, signal amplifiers built into the cable are used, as well as twisted pair, fiber optic or coaxial cables. But the basic version provides a length of up to 1.8 meters inclusive.

Just a moment, friends! If you have a couple of minutes of free time, then I ask you to devote them to reading articles about this or why, as well as.

Fifth way. Using DVI

Digital Visual Interface is a standard for video transmission that does not support audio transmission, but is intended for FullHD and 3D transmission. Due to the inability to transmit sound, you must additionally use a speaker system or audio input on the TV. The DVI connector looks like the one shown in the picture.

The cable length with this standard depends on the amount of video information transmitted along the cable.


Powerful signal amplifiers make it possible to transmit a video signal over a distance of 60 meters.

Sixth method. Using VGA or PC IN

Many LCD and plasma TVs support this type of connection. VGA was used back in the days when flat-panel monitors did not exist. Nowadays, it can be seen on many devices that were three years old. PC IN is shown in the figure.


VGA does not support audio transmission, so TVs have an additional audio jack. Video resolution at VGA – up to 1600x1200. But there are rare video cards that support 1920x1080 resolution.


The standard VGA cable length is from 1.5 to 1.8 m. But VGA can support cables up to 30 meters and even more.

Seventh method. Using S-Video

This standard appeared quite a long time ago, and new laptops with this standard can no longer be found. In such cases, you can use an adapter. This method of transferring images to CRT TVs is still the best.

Of course, this type of standard does not have the ability to transmit high quality audio and graphics. The maximum cable length depends on the quality of the material and the presence of protection. There have been cases of signal transmission over long distances, up to 300 meters. High-quality reproduction is ensured at a maximum of 15 meters.

Eighth method. Component or RGB cord

This type of standard consists of three channels supplied through three different colored connectors on the TV: green, red and blue. In modern times, these connectors do not lose their relevance. The picture shows the back panel of one of LG's 2014 TVs. The so-called “tulips” are circled in green, and the component input is circled in red.


You cannot find such connectors on laptops, so through this standard the laptop is connected to the TV using an adapter, for example, from the VGA standard. It is recommended to use cables up to 15 meters long.

Ninth method. Connection via SCART

The standard appeared a long time ago, in 1978, and at one time was a breakthrough in video transmission technology, but in modern times it is still used. To connect via this standard, you can use VGA, HDML and other adapters.

Using SCART is primarily suitable for connecting modern laptops to old TVs. The maximum cable length that maintains good sound quality ranges up to 15 meters. Such high-quality cables are quite expensive, so purchasing them is quite problematic.

Tenth way. Transfer from APPLE laptops

APPLE laptops with Retina displays support HDMI. If HDMI is not available, you must use an adapter. The figure shows the various ports.

Conclusion

So, this article discussed the main ways to connect a laptop to a TV to display images on the screen. I hope you understand how to display an image from a laptop to a TV? Each method has its own characteristics, capabilities and its own history. This information will be useful to all laptop owners who want to take advantage of even greater opportunities in terms of viewing videos, photos and the like. Thank you all for your attention and good health to you!

With UV. Evgeny Kryzhanovsky

How to display an image from a laptop to a TV? Well, there are a lot of options!

In this article we will tell you how to properly connect a computer via wifi to a TV, and consider several of the most popular options today. The point of this connection is to be able to conveniently watch video files and photos stored on a computer or broadcast via the Internet on a large screen.

What do you need to establish a wireless connection?

Since Wi-Fi involves data exchange over a radio channel, first of all, you need to make sure that your Smart TV, like a computer, is equipped with a built-in Wi-Fi module or optionally supports this technology.

As for laptops, almost all modern models have a built-in Wi-Fi module. If you want to connect a stationary desktop to the TV, you will have to additionally purchase a special Wi-Fi adapter for it.

The adapter can be made in the form of a PCI card with an antenna built into the system unit or an external USB module that resembles an ordinary flash drive in appearance. The same external Wi-Fi adapter may need to be connected to the USB connector of the TV, if it is not initially equipped with a built-in module. To avoid problems with connection and setup, it is better to purchase adapters of the same brand as your TV.

It would be a good idea to pay attention to the version of the Wi-Fi standard that the modules support. It is better to stick with the most current and fastest version of IEEE 802.11n. It has a wide bandwidth and will not cause delays or freezes on the TV screen. Also, be sure to update the driver versions for all network devices.

The easiest way to wirelessly transfer images or music from a computer (laptop, tablet) to a TV is in the following ways:

  1. Via a local LAN network via a Wi-Fi router (computer – router – TV).
  2. Using Intel Wireless Display (WiDi) or Wi-Fi Miracast (wireless monitor) technologies.

Connecting the TV to a computer using a Wi-Fi router (DLNA technology)