Modern televisions have long since ceased to be simply devices for watching broadcast channels. Huge displays with high resolution and support 4K This makes them an ideal replacement for computer monitors, especially for multimedia, presentations, or casual gaming. However, running HDMI cables across a room is often unsightly or physically impossible due to the room's layout.
Fortunately, wireless data transfer technologies make it possible to stream images from a PC or laptop to a large screen without the hassle of wires. In this article, we'll cover all the current methods, from built-in Windows features to third-party tools, that will help you. use your TV as a monitor via Wi-Fi with minimal delay.
Wireless image transmission technologies
Before setting up, it's important to understand that "Wi-Fi transmission" is a general term. In fact, there are different protocols, each with its own characteristics, advantages, and disadvantages. Choosing the right method directly depends on your equipment and intended use.
The most common standard is MiracastThis is a technology developed by the Wi-Fi Alliance that allows uncompressed video and audio to be transmitted directly between devices. It doesn't require a router, as the devices are connected using Wi-Fi technology. Wi-Fi Direct.
Another popular method is DLNAIt's good for transferring media content (movies, photos), but it doesn't allow for full desktop mirroring in real time. This protocol isn't suitable for gaming or work.
Apple device owners use the protocol AirPlay, which ensures a stable connection between devices in the ecosystem. For Windows PCs, there are also proprietary solutions from video card manufacturers, such as NVIDIA GameStream (although support has officially ended, analogues remain) or software emulators.
Preparing equipment and network
Connection success and image quality directly depend on the condition of your local network. Wireless transmission of high-definition video streams requires significant bandwidth.
Ideally, both your computer and TV should be connected to the same network. However, there's an important caveat: if you have a dual-band router, make sure both devices are within range. 5 GHzThe 2.4 GHz frequency is often overloaded and does not provide sufficient speed to transmit 1080p or 4K video without artifacts.
It's also worth checking that your computer's wireless adapter drivers are up-to-date. Outdated software may not support the required encryption standards or data transfer rates.
⚠️ Please note: Smart TV menu interfaces are frequently updated by manufacturers. The layout of menu items may vary depending on the operating system version (Tizen, WebOS, Android TV). Please check the section names against the latest documentation for your model.
Setting up Miracast in Windows 10 and 11
Microsoft operating systems have built-in support for wireless displays. This is the easiest method and doesn't require any additional software. Before you begin, make sure Wi-Fi is enabled on your PC.
You need to activate the signal reception mode on your TV. In Samsung menus, this is often called Screen Mirroring or Smart View, on LG — Screen Share, and on Android TV the function may be called Wireless monitor or be built into the Chromecast system.
The algorithm of actions on the computer is as follows:
- 🖥️ Press the key combination
Win + Kto call the connection panel. - 📡 Wait while the system searches for available wireless displays within range.
- 📺 Select the name of your TV from the list provided.
- ✅ Confirm the connection request that may appear on the TV screen (using the remote control).
Once paired, the desktop image will appear on the TV. You can control the projection mode through the menu. Project, choosing between screen duplication or desktop extension.
☑️ Check before connecting Miracast
Using Google Chrome to Stream
If the built-in Windows tools are unstable or your TV is based on Android TV or has a built-in Chromecast, the Google Chrome browser is an excellent solution. This method is universal and works on all operating systems.
Open your browser and click on the three dots in the upper right corner, then select Save and share (or just menu) and find the option Broadcast... (Cast). In the window that opens, you will see a list of available devices.
It's important to choose the right streaming source. By default, the browser offers to stream a tab, but we need something different:
- 📂 Click the button
Sourcesin the broadcast window. - 💻 Select an item
Broadcast your desktopto transfer the entire screen. - 🎥 Or choose
Stream file, if you need to show a specific video or photo.
This method is convenient because it allows you to quickly switch between sources, but it can consume more processor resources than system Miracast.
Why might the device search not work?
If your computer and TV can't see each other, check your Windows network profile settings. The network should be marked as "Private," not "Public." Device discovery is often blocked in a public profile for security reasons.
Comparison of connection methods
To choose the best option for your situation, it's worth comparing the key features of available technologies. Each has its own strengths depending on the use case.
Below is a table to help you decide on a connection method:
| Method | Input Lag | Picture quality | Compatibility |
|---|---|---|---|
| Miracast | Low / Medium | High (up to 4K) | Windows, Android |
| AirPlay 2 | Low | Very high | Apple, some Smart TVs |
| Chromecast | Average | High | All platforms (via browser) |
| DLNA | Not applicable | Maximum | Media files only |
For office work and video viewing, the difference in latency may not be noticeable. However, for fast-paced games, even a small input lag (input lag) may become critical.
Performance optimization and troubleshooting
A wireless connection is always less stable than a wired one. If you notice audio and video out of sync, blocky images, or intermittent freezes, you need to optimize it.
First of all, try lowering the resolution or refresh rate in Windows display settings. Image transfer in 60 Hz requires twice as much bandwidth as 30 HzFor static work or watching movies, 30 Hz may be quite sufficient.
It's also worth checking whether your Wi-Fi channel is being overloaded by neighboring routers. Use Wi-Fi analyzer apps to find a free channel and switch your router to it through the settings. 192.168.0.1 or 192.168.1.1.
⚠️ Please note: When using your TV as a monitor via Wi-Fi, your laptop's battery may drain faster than usual due to the active wireless module. It is recommended to keep the device connected to a power source.
Alternative solutions and third-party software
When standard methods fail to produce the desired result, specialized programs come to the rescue. They often use their own compression codecs, which allows for smoother video playback even on less-than-ideal connections.
One of the best programs is LetsView or ApowerMirrorThey allow you to not only mirror your screen but also control your computer from your TV (if the TV supports mouse/remote control). Installation is required on both the PC and (in some cases) the TV.
For gamers who want to play PC games on a TV without losing quality, a combination of Steam LinkThe application is available in the app stores of most Smart TVs.
- 🎮 Install the Steam Link application on your TV.
- 🔗 Launch it and wait until the computer is detected on the local network.
- ⌨️ Enter the PIN displayed on your TV into the Steam client on PC.
- 🕹️ Enjoy gaming with optimized input lag.
This method is especially good because it is tailored specifically to the gameplay and minimizes lag.
Is it possible to play shooters via Wi-Fi on a TV?
Technically, it's possible, but the experience can be ruined by input lag. For turn-based strategy games or card games, this isn't a big deal. For fast-paced shooters (CS:GO, Call of Duty), even a lag of 50-100 ms will make the experience uncomfortable. In such cases, it's best to use an HDMI cable or a wired connection.
Why is there no sound on the TV when connected via Wi-Fi?
Windows often continues to output sound through the laptop's standard speakers. Click the sound icon in the system tray, select the playback device, and switch to your TV (usually displayed as a digital output or the TV model name).
Does connecting a TV affect internet speed?
Yes, wirelessly transmitting high-quality video takes up a significant portion of your bandwidth. If you're watching 4K video from your PC to your TV, other devices on the network may not have the speed for comfortable surfing or video calls.