Modern home theaters no longer require the complex installation of HDMI cables throughout the entire apartment. Wireless data transmission technologies allow you to instantly display images from your computer screen on a large TV. This is convenient for watching movies, presentations, or gaming, when the distance between devices makes cables impossible or unsightly.
There are several main protocols that are supported by the operating system. Windows and modern Smart TVThe specific method you choose depends on your TV brand, operating system version, and wireless network quality. In this article, we'll cover all the current methods, from built-in system features to specialized software.
First, make sure that both devices - your computer and your TV - are connected to the same network. Wi-Fi networksIf your router supports dual-band mode (2.4 GHz and 5 GHz), it is highly recommended to use the frequency 5 GHz for video transmission, as it provides significantly higher bandwidth and lower latency.
Using the built-in Projection feature in Windows
Windows 10 and Windows 11 operating systems have a built-in tool for wireless connection to displays. This technology is based on the standard Miracast, which allows you to broadcast your screen image in real time. Most modern TVs from Samsung, LG, Sony, and Philips have built-in support for this protocol.
To start the connection, press the key combination Win + K on the keyboard. The "Connection" panel will open on the right, where the system will search for available devices. If your TV supports Miracast and is turned on, it should appear in the list. After selecting a device, a connection confirmation prompt may appear on the TV screen, which you'll need to accept using the remote.
⚠️ Note: If your computer doesn't see your TV, check your projection settings. Go to
Settings → System → Project to this PCand make sure the feature is available. On some older motherboards, the Wi-Fi module may not support Miracast technology.
Image quality directly depends on signal strength. For stable operation without jitter or artifacts, the distance between the router and receiver shouldn't be critical. It's also worth considering that transmitting high-definition video increases the load on the wireless channel many times over.
Stream media via DLNA
If your goal is not to duplicate your desktop, but to view movies, photos, or listen to music stored on your PC's hard drive, the optimal solution is the technology DLNAUnlike Miracast, the image is not "mirrored" here, but the TV itself reads the media file from the computer, acting as a renderer.
In Windows 10 and 11, the media server feature is built in by default. Open "Media Streaming Settings" from the Control Panel or search bar. In the window that opens, click "Turn on media streaming." The system will prompt you to name the library, after which your TV will appear in the list of devices.
You can use standard Windows Explorer to access files via DLNA. Right-click the video file, select "Show Device," and select your TV. However, for more convenient content management, it's best to use specialized software.
- 📺 Plex — a powerful media server with automatic downloading of movie covers and descriptions.
- 🎬 Kodi — a universal entertainment center with a huge number of plugins and interface settings.
- 📂 Home Media Server — a lightweight utility, ideal for quickly sharing folders without unnecessary settings.
The advantage of DLNA is that the TV decodes the video itself, offloading the computer's processor. You can minimize the player window or even turn off the PC monitor, and playback will continue. However, it's most convenient to control rewinding and pausing using a smartphone app or TV remote, as the standard Windows player has limited remote control functionality.
☑️ Check DLNA settings
Connecting via Google Chrome browser
Owners of TVs with the operating system Android TV or a built-in module Chromecast You can use the Google Chrome browser to cast tabs or the entire screen. This method is especially convenient if you need to show content from a website that doesn't have a dedicated app on your TV.
Open the Chrome browser on your computer. Click the three dots in the upper right corner and select "Cast." In the menu that appears, you can choose to cast a specific tab, the entire desktop, or an audio file. The system will automatically search for available devices on your local network.
It's important to note the difference in performance. Casting a browser tab is smoother because it's handled by Chrome's rendering engine. Selecting the "Cast Desktop" option creates a video stream of the entire screen, which can lead to audio and video desync, especially at high resolutions.
| Parameter | Chrome tab | Full screen (Desktop) | File |
|---|---|---|---|
| Quality | High | Average | Original |
| Delay | Minimum | Noticeable | Absent |
| PC load | Low | High | Low |
| Sound | Eat | Yes (depending on OS) | Eat |
⚠️ Note: The browser interface and available codecs may change with Google Chrome updates. If the "Cast" feature is missing, check if Chromecast is enabled in your system settings or try updating your browser to the latest version.
Using third-party programs for remote access
When standard tools are unstable or require complex configuration, remote control programs come to the rescue. Solutions such as AnyDesk, TeamViewer or RustDesk, allow you to see your computer screen on your TV via a client application installed on your Smart TV.
This method differs radically from Miracast in that the video stream is compressed using a software codec and transmitted over the network as regular data traffic. This allows for streaming over the internet, not just within a local network, although this is not the most efficient method for high-definition video.
To establish this connection, you need to install the server portion of the program on your PC and the client app from the TV's app store (e.g., the Google Play Store on Android TV). After entering the ID and password, you'll gain full access to control your computer using the remote control or connected mouse.
Why might the image slow down in TeamViewer?
Lag is often caused not by internet speed, but by the processor's processing power, which can't keep up with encoding the video stream in real time. Color quality settings also play a role: switching to 256 colors or lowering the resolution can significantly increase FPS.
The main drawback of this method is high input lag. Using a remote desktop for fast-paced games or watching high-bitrate videos is uncomfortable. However, for displaying static presentations, spreadsheets, or documents, this method is ideal.
Setting up AirPlay for Apple owners
Computer users MacBook or iMac have native support for the technology AirPlay 2Many modern TVs (Samsung, LG, Sony, Vizio) already have built-in support for this protocol, allowing you to connect without purchasing an additional Apple TV set-top box.
To connect, click the "Screen Mirroring" icon in the menu or in the macOS Control Center. Select your TV from the list. If a verification code appears on the TV screen, enter it on your computer. The image will instantly appear on the big screen with minimal delay.
Windows owners can also use AirPlay by installing third-party servers that emulate an Apple receiver, such as AirServer or ReflectorAfter installing this software on your PC, your computer will become visible to Apple devices as a target display, allowing you to stream content in the opposite direction.
- 🍏 4K HDR support is only available on compatible TVs and Mac models.
- 🔒 The protocol uses encryption, which guarantees the security of transmitted data.
- 🔄 Automatically switches the audio source to the TV when the broadcast starts.
Troubleshooting and connection diagnostics
Even with proper setup, users may encounter issues: the TV isn't visible in the device list, the picture is choppy, or there's no sound. The first step should always be checking that all devices are on the same subnet. Routers with a "Guest Network" feature isolate devices from each other, making connection impossible.
A common cause of failures is Windows Firewall settings. The operating system may be blocking incoming connections for the "Public Networks" feature. Switch the network profile to "Private" in Wi-Fi settings to allow discovery.
If the image is streaming but has artifacts, try lowering the output resolution or frame rate in Windows display settings. It's also worth checking whether your Wi-Fi channel is being overloaded by neighboring routers. In this case, manually changing the channel in the router settings may help.
⚠️ Please note: Your TV's wireless module specifications may limit the maximum transmission speed. Older Smart TV models may only support the Wi-Fi 4 (802.11n) standard, which will not allow you to stream 4K content without buffering.
In complex cases, rebooting your network equipment may help. Turn off your router, TV, and computer for 30 seconds, then turn them on in this order: router (wait until fully loaded) → TV → computer. This will clear the DHCP cache and resolve IP address conflicts.
Comparison of connection methods
The optimal method depends on your needs. Minimal latency is important for gaming, simplicity is important for photo viewing, and cursor stability is important for work. Below is a comparison table of the key characteristics of the methods considered.
| Method | Delay | Quality | Complexity |
|---|---|---|---|
| Miracast (Win+K) | Low | High | Low |
| DLNA | No (file) | Maximum | Average |
| Chrome Cast | Average | High | Low |
| TeamViewer | High | Average | High |
It's important to remember that software methods can't completely replace a physical HDMI 2.1 connection when it comes to professional color work or eSports gaming. However, for 90% of home use cases, Wi-Fi connectivity is a convenient and functional solution.