Modern technology allows you to transform your living room into a fully-fledged media center, and one of the key elements of this ecosystem is wireless transmission of images from your computer to the big screen. LG Smart TV People often wonder how to display desktop content or media files from a laptop on a TV display without unnecessary cables. This not only eliminates cable clutter but also gives you the freedom to move around the room while watching.
There are several proven methods for implementing such a connection, each of which has its own characteristics and use cases. Wireless connection This can be accomplished through built-in Windows operating system features, specialized software from the manufacturer, or standard streaming protocols. Understanding the differences between them will help you choose the best option for your needs.
In this article, we'll take a detailed look at all the current methods for synchronizing devices, focusing on technical nuances and potential complications. You'll learn how to set up Miracast How to use for screen mirroring DLNA for viewing photos and videos, as well as what to do if the devices don't recognize each other. A willingness to experiment and attention to detail are the keys to a successful setup.
Network requirements and pre-requisites
Before you begin configuring the software, you need to ensure that the physical infrastructure is correct. A fundamental requirement for the stable operation of any wireless technology is that both devices are on the same local network. This means that both your computer and TV are connected. LG must be connected to the same router.
If you're using a wired connection for your PC and Wi-Fi for your TV, make sure they're on the same subnet. Often, ISPs or complex router settings can separate devices into different virtual networks (guest networks, IoT networks), which prevents them from discovering each other. For troubleshooting, you can check the IP addresses: the first three groups of digits in the address of your computer and TV should match.
⚠️ Note: Using guest Wi-Fi (Guest Network) on a router often blocks data exchange between devices within the network for security reasons. To connect your TV, use your main home network.
The quality of the wireless signal also plays a critical role, especially when transmitting high-definition video streams. Standard Wi-Fi 5 GHz It's preferable for streaming 4K content, as it offers higher throughput, although it has a shorter range than 2.4 GHz. If the router is located far away, lag or image artifacts may occur.
Using the Connect to a Wireless Display feature in Windows
The most universal and simple way to broadcast your computer screen to your TV LG is a built-in feature of the Windows 10 and 11 operating system, based on technology MiracastThis method allows you to completely mirror the image from your PC monitor to your TV, making it ideal for presentations, web browsing, or gaming with low response time requirements.
To get started, you need to activate the signal reception on the TV side. On the remote control LG find the button that says INPUT or the house icon, go to the launcher menu and select the application Screen Share (in newer models it may be called Device Connector or simply be built into the system webOS). After launch, a message about waiting for connection will appear on the screen.
On your computer, press the key combination Win + KThe "Connection" panel will appear on the right, where the system will begin searching for available displays. Your TV should appear in the list. LGClick it, and in a few seconds, the desktop image will appear on the big screen. In some cases, a connection confirmation prompt may appear on the TV screen, which you'll need to accept with the remote.
- 📺 Click the button
Homeon the LG remote and launch the appScreen Share. - 💻 On your PC keyboard, press
Win + Kto open the projection menu. - 🔗 Select the name of your TV from the list of available devices.
- ✅ Confirm the connection on the TV screen if prompted.
After successful connection, you can control the display mode through the menu ProjectThe available modes are "Duplicate" (a copy of the screen), "Extend" (the TV becomes a second monitor), and "Second Screen Only" (the PC monitor goes dark). To return to normal mode, press again. Win + K and select "Disconnect".
☑️ Check before connecting Miracast
Stream media via DLNA and Smart Share
If your goal is not to duplicate your desktop, but to view movies, photos or listen to music stored on your computer's hard drive, then the technology DLNA (Digital Living Network Alliance) would be the best fit. In the ecosystem LG This function is implemented through the application Smart Share or a built-in media player. The advantage of this method is that it requires less Wi-Fi bandwidth, as it transmits only the data stream, rather than the entire interface's video signal.
First, you need to enable streaming in Windows settings. Open Settings (you can do this via Win + I), go to the "Network & Internet" section, then select "Status." In the advanced options, find "Media Streaming Settings." In the window that opens, click "Turn on Media Streaming" and make sure your TV LG is on the list of allowed devices.
Now let's move on to setting up file access. Open File Explorer, find the folder containing the video or photo, right-click it, and select "Give access to" → "Specific people." Add the "Everyone" or "HomeGroup" user and click "Add," setting the permission level to "Read." This will grant file access to the network.
⚠️ Warning: Antivirus programs or Windows firewalls may block incoming connections to the media server. If the TV doesn't detect the PC, try temporarily disabling your third-party antivirus or creating an exception rule for your private network.
On the TV side LG launch the application Photos and videos (or Smart Share (On older models). Your computer should appear in the list of media sources. Once you log in, you'll see your shared folders. Navigation is handled by the remote control, and playback controls (pause, rewind) are also available through the TV interface.
Why doesn't the TV see folders with movies?
If you shared a folder but your TV doesn't display it, check your network type in Windows. The network should be marked as "Private," not "Public." On public networks, Windows hides your device from detection by other devices by default for security reasons. You can change this in your Wi-Fi connection settings.
Comparison of connection technologies: Miracast, DLNA, and AirPlay 2
The variety of connection methods can be confusing for the uninitiated. Each protocol is tailored to specific tasks and has its own limitations. Understanding these differences will help avoid frustration, such as when a user tries to play a heavy game via DLNA, not realizing that this protocol isn't designed for interactive interaction.
Miracast Creates a direct connection between devices (or via a router), transmitting a real-time video stream. This places a strain on the processor and network, which can lead to audio and video desynchronization or cursor lag. DLNA, in turn, works on the client-server principle: the TV itself reads the file, unloading the computer, but does not allow control of the OS interface.
For Apple device owners, the issue of support is relevant AirPlay 2Modern models LG (webOS 4.0 and above, released around 2019) have built-in AirPlay 2 support. This allows MacBook and iPhone owners to stream content without installing additional apps, using the system's native integration.
| Characteristic | Miracast (Screen Casting) | DLNA (Media Server) | AirPlay 2 |
|---|---|---|---|
| The main goal | Duplicate desktop, presentation | View videos, photos, music | Broadcast from the Apple ecosystem |
| Interactivity | Full (mouse/keyboard control) | Limited (player control only) | High (iOS/macOS integration) |
| Network requirements | High (requires stable 5 GHz) | Average (2.4 GHz is enough for FullHD) | Tall |
| Latency | Present (not for dynamic games) | None (buffering) | Minimum |
The choice of technology depends on your scenario. For watching a downloaded 4K movie, DLNA is best, as the TV handles the decoding itself, ensuring the highest picture quality without stuttering. For sharing a browser or working with documents, Miracast is indispensable.
Solution: The TV doesn't see the computer.
Despite the standardization of technologies, users often encounter situations where devices ignore each other. The most common cause lies in network security settings. Windows treats new networks as "Public" by default, hiding the PC from the outside world. Switch the network profile to "Private" in the Wi-Fi settings.
Another common problem is outdated software. TV firmware LG webOS The Wi-Fi drivers on your computer must be up-to-date. Manufacturers regularly release updates that fix compatibility issues with new routers and encryption protocols.
- 🔄 Reboot: Unplug the TV (leave it completely unplugged for 1 minute) and reboot the router. This clears the DNS cache and resets network errors.
- 🛡️ Firewall: Check if Windows Firewall is blocking the Media Server application or system discovery services.
- 📶 Router frequency: Make sure both devices are operating on the same frequency (although modern routers with Smart Connect functionality should correctly route traffic between 2.4 and 5 GHz).
If nothing helps, try resetting your TV's network settings to factory defaults. In the menu Settings → General → Network Select "Disconnect Wi-Fi," then reconnect by entering the password. Sometimes temporarily disabling IPv6 in your computer's network adapter settings helps, as some older TV models don't work well with this protocol.
Using third-party programs for advanced features
Built-in Windows tools and LG This may not be sufficient for advanced users. For example, standard Miracast isn't always suitable for transmitting audio to external speakers or has bitrate limitations. In such cases, third-party solutions come to the rescue.
One of the popular programs is LetsView or AirServerThey are installed both on a PC and (in some cases) on a TV, if the platform allows it. webOS, or work in conjunction with external set-top boxes. These programs often offer more flexible image quality settings, the ability to control the computer from the smartphone screen (if the app supports reverse control), and improved connection stability.
The browser is also worth mentioning. Google ChromeIt has a built-in Cast feature that allows you to cast a browser tab or your entire desktop to your TV. LG (If it supports Chromecast built-in or via the LG TV Plus app). This is a great option for watching online video from sites that block live streaming via the system's Miracast.
For users who want to create a full-fledged media server with a beautiful interface, movie posters and descriptions, the ideal solution would be to install Plex or Jellyfin on the computer. TV LG has a native Plex app in the store LG Content StoreThis turns viewing your home collection into an experience comparable to professional online cinemas.
Frequently Asked Questions (FAQ)
Is it possible to connect a computer to an LG TV without a router?
Yes, it is possible thanks to technology. Wi-Fi DirectIn this mode, the TV creates its own wireless network, to which the computer connects directly. However, data transfer speeds may be lower, and functionality is limited to streaming images without internet access on the TV (unless the TV uses the PC's mobile data).
Why does the image lag when connected via Wi-Fi?
Lag is most often caused by wireless congestion or a weak signal. Try switching to the 5 GHz band, closing background downloads on your computer, or moving the router closer to the TV. Reducing the image quality in the Windows projection settings may also help.
Does my old LG TV support Screen Share?
Function Smart Share or Screen Share Miracast has been available on LG TVs since the webOS platform (approximately 2014 and newer). Older models (NetCast) may not support direct connection without external adapters like AnyCast or Chromecast.
How to stream audio from a computer to a TV via Wi-Fi?
When using Miracast, audio should be transmitted automatically. If it isn't, click the speaker icon in the Windows tray, select the audio output device, and click the name of your TV. In DLNA mode, the TV handles audio playback itself.
Is it safe to leave streaming on all the time?
Yes, it's safe. However, if you live in an apartment building, it's recommended to set a password for your media library or use a guest network for IoT devices to limit potential access by outsiders to your files.