Modern multimedia systems allow you to stream content from a personal computer to a large screen without the need for unnecessary wires. This is especially important for smart TV owners who want to show presentations, watch movies, or play games on a large screen. A wireless connection provides the necessary freedom of movement and eliminates dangling cables from your home.
Equipment owners LG Electronics have access to an advanced platform webOS, which offers a variety of built-in tools for interacting with other devices. To successfully implement this project, you don't need complex adapters or third-party devices—all you need is a stable home network. In this article, we'll cover all available synchronization methods, from simple Windows system functions to specialized software.
Data transfer efficiency directly depends on the signal quality and bandwidth of your router. If you plan to stream 4K video, make sure both devices support the standard. Wi-Fi 5 GHzThis will avoid delays and image artifacts during viewing.
Preparatory stages and network requirements
Before you begin setup, you need to make sure your equipment is ready for use. A basic requirement is that the computer and TV be on the same local network. This means both devices must be connected to the same router, regardless of whether you're using a cable or wireless connection.
Check that your TV's software is up to date. LG Smart TVManufacturers regularly release updates that improve module stability. Wi-Fi Direct and fix data transfer protocol errors. Outdated firmware may prevent the computer from recognizing the display in the list of available devices.
It's also worth paying attention to your Windows firewall settings. Sometimes antivirus programs or built-in network protection can block external connection attempts. For proper operation, you need to add your home network to the trusted list.
⚠️ Important: If your router supports the "Guest Network" feature, make sure the devices aren't separated by client isolation. Guest mode often disables data transfer between devices within the network, making connection impossible.
To check the signal quality, you can use your TV's built-in diagnostic tools. Go to the network settings menu and check the signal strength. If it's weak, we recommend moving the router closer to the TV or using a Wi-Fi extender.
Using the Wireless Monitor Feature in Windows
Windows 10 and 11 operating systems have built-in support for the technology. Miracast, which allows you to mirror your screen image to compatible displays. TVs LG with function Screen Share Fully support this standard. To get started, press the "Input" button on the remote control or select the "Screen Share" app from the webOS main menu.
On your computer, press the key combination Win + KA panel for connecting to a wireless display will appear on the right side of the screen. The system will begin searching for available devices within range. Once your TV's name appears in the list, LG OLED or LG NanoCell, click on it to start pairing.
Once successfully connected, your Windows desktop will be fully displayed on your TV. You can choose the operating mode: mirroring screens, expanding your workspace, or using the TV as a second monitor. The projector is controlled via the menu. Settings → System → Display.
☑️ Check before connecting Miracast
It is important to note that when transmitting a video signal wirelessly, there may be a slight input delay, known as Input LagThis isn't critical for viewing photos or videos, but it may be unresponsive for fast-paced games. In such cases, it's better to use a wired connection or low-latency gaming modes.
What to do if Windows doesn't find the TV?
If the search yields no results, try updating the wireless adapter drivers on your computer. Also, make sure that your TV isn't running any heavy applications that could overload the webOS processor and hide the device from the network. Restarting the router often resolves the visibility issue.
Stream media via DLNA and media server
If your goal is not to duplicate the desktop, but to play specific files (movies, music, photos), then the technology DLNA (Digital Living Network Alliance) is ideal. TVs LG They have a built-in DLNA renderer, allowing you to view the contents of your computer's media library. You don't need to install any additional software on the TV; just configure your PC correctly.
In Windows, open "Media Streaming Settings." You can do this through Control Panel or search. Make sure media streaming is enabled. Find your TV in the list of devices. LG Smart TV and set its status to "Allowed".
After setting up, press the "Input" button on your TV remote and select "Device Connector" or "Media Player." Your computer's folder structure will appear on the screen. Navigate using the remote, making it convenient for viewing photo albums or TV series without copying files to a flash drive.
| Parameter | Requirement / Characteristic | Recommendation |
|---|---|---|
| Protocol | DLNA / UPnP | Standard support in Windows |
| Video formats | MP4, MKV, AVI | Depends on TV codecs |
| Audio tracks | AC3, DTS, AAC | Check codec support |
| Subtitles | SRT, SUB | It is better to use external files |
It's worth noting that your TV's built-in player may not support certain audio codecs or subtitle formats. In this case, the image will be displayed, but there may be no sound. To resolve this issue, you can use third-party media servers, such as Plex or Jellyfin, which broadcast an already re-encoded stream.
Third-party apps for control and broadcasting
Built-in operating system tools do not always provide the required level of functionality. App Store LG Content Store offers a variety of programs to expand the capabilities of Smart TV. One of the most popular is the utility TV Plus or similar devices that allow you to control your TV from a smartphone or PC located on the same network.
For more advanced users who want to broadcast a browser tab Google ChromeThere's a built-in Cast feature. Open your browser menu, select "Cast," and find your TV. This technology often works more reliably than system screencasting, especially for web content.
There are also cross-platform solutions such as AirPlay 2, which is supported by new TV models LGThis allows computer owners Mac and devices based on iOS It's easy to connect to your TV. There are AirPlay clients for Windows that emulate this protocol.
⚠️ Please note: The LG Content Store interface may vary depending on your TV's year of manufacture and webOS operating system version. Some apps may not be available in your region or may have been removed by their developers.
When using third-party apps, it's important to monitor access rights. An app installed on your TV may request access to the file system or microphone. Trust only official apps from reputable developers to ensure cybersecurity your home network.
Setting up display and sound options
After successfully connecting your computer to your TV via Wi-Fi, fine-tuning the image is often required. The TV resolution may differ from the monitor resolution, which will result in incorrect fonts or desktop borders. Go to Windows display settings and select the TV's native resolution, which is usually 3840x2160 for 4K models.
Pay special attention to your audio settings. By default, audio may continue to play through your computer speakers. To switch the audio stream to your TV, click the speaker icon in the Windows tray, select the output device, and find your device in the list. LG TVNow the sound will be transmitted via HDMI emulation or over the network.
For movie buffs, color and refresh rate calibration are important. In your TV settings LG Activate "Movie" or "Game" mode depending on the content. Game mode reduces signal processing latency, which is critical when using the TV as a PC monitor.
If you notice audio and video desync during wireless streaming, try lowering the video bitrate or closing background applications on your computer that are consuming network resources. Switching to the 5 GHz frequency, which is less congested, may also help.
Solving common connection problems
Despite the advancement of technology, users may encounter difficulties. One common issue is connection interruptions or low data transfer speeds. This is often due to congestion of the wireless channel by neighboring routers. In this case, changing the broadcast channel in the router settings can help.
If the TV LG If your device is no longer detected in the device list, try resetting your network settings. On a computer, you can do this via the command line by entering the TCP/IP stack reset command. On a TV, simply disable the "Fast Startup" feature in the power saving settings and reboot the device.
Wireless adapter driver issues shouldn't be ignored either. Make sure your PC has the latest Wi-Fi module drivers installed. Laptop and motherboard manufacturers regularly release updates that improve compatibility with media protocols.
Why isn't my LG TV showing up in the list of wireless displays?
The most common cause is that the devices are on different subnets or access point isolation is enabled on the router. Also, check if your antivirus software is blocking device detection. Make sure the Screen Share feature on your TV is enabled and waiting for a connection.
How to reduce latency when gaming over Wi-Fi?
For gaming, a wireless connection will always have higher latency than a cable. However, you can minimize lag by using a router that supports the Wi-Fi 6 standard, connecting to the 5 GHz band, and disconnecting other devices from the network while gaming. Be sure to enable "Game Mode" in your TV settings.
Is it possible to connect a computer to an old LG TV without Smart TV?
Without a built-in Smart TV module, direct wireless connection is impossible. In this case, you'll need an external adapter, such as a Google Chromecast, Microsoft Wireless Display Adapter, or Android TV box, which plugs into the HDMI port and handles signal reception.
Does connecting other devices affect the quality of the broadcast?
Yes, Wi-Fi bandwidth is shared among all active clients. If someone on the network is actively downloading files or watching 4K video, the quality of the wireless streaming from the computer to the TV may degrade, causing stuttering or reduced resolution.