Modern multimedia systems offer users a wide range of options for comfortable content viewing, and one of the most popular features is wireless image transmission. Screencasting Allows you to display your desktop, photos, or videos on a large display, eliminating the need for HDMI cables. For tech owners LG This process is made particularly simple by the implementation of advanced communication protocols and intelligent platforms. WebOS.
There are several ways to accomplish this screen connection, each of which has its own characteristics and is suitable for different operating systems. The main requirement for all methods is that the laptop and TV must be on the same local Wi-Fi network, otherwise the devices will not see each other. In this article, we'll take a detailed look at native Windows and macOS tools, as well as consider third-party solutions for those cases where standard methods don't work or require advanced functionality.
Before you begin setup, make sure your equipment supports the required wireless standards. Most modern models LG, since 2018, support technologies Miracast And AirPlay 2, making them compatible with a wide range of devices. If you have an older model, you may need to use an external adapter or install additional software on your Smart TV.
Preparing equipment and network
The first step to successful synchronization is properly configuring your network environment. Make sure your router is broadcasting at 5 GHz, as this ensures more stable, lag-free high-definition video streaming. Dual-band routers significantly reduce the likelihood of audio and video desynchronization, which often occurs when using congested 2.4 GHz networks.
On the TV itself LG You need to activate the signal reception mode. To do this, go to the menu Settings → Connection → Screen Share (or "Broadcast from phone") you need to allow incoming requests. In some versions WebOS This feature is enabled by default, but it wouldn't hurt to check your privacy settings.
⚠️ Important: If your router uses AP Isolation mode, devices will not be able to discover each other on the network. This setting is often enabled on guest networks or corporate Wi-Fi, so for home streaming, you should disable it in your router settings.
It's also worth checking that your laptop has up-to-date drivers for the network adapter. Outdated software The TV may not correctly process multicast packets used to discover devices on the local network. Updating the drivers often resolves the issue when the TV simply doesn't appear in the list of available devices.
Streaming from Windows 10 and 11 via Miracast
Operating systems from Microsoft have built-in support for the technology Miracast, which allows you to broadcast your screen without installing additional software. This method is the most preferred for Windows users, as it ensures minimal latency and good image quality. To get started, press the key combination Win + K on the laptop keyboard.
A "Connect" or "Cast" panel will appear on the right side of the screen, where the system will begin searching for available displays. Select your TV. LG from the list. A connection confirmation prompt may appear on the TV screen; accept it using the remote control. After this, the desktop image will appear on the big screen.
To control display modes, use the menu Projection, which is called by the same key combination or through Settings → System → DisplayHere you can select "Duplicate" to clone the entire screen or "Extend" to use the TV as a second monitor.
- 🖥️ Duplication: Ideal for showing presentations or viewing photo albums.
- 📐 Extension: Allows you to drag application windows onto your TV, freeing up your main laptop screen for other tasks.
- 🔒 Second screen only: Turns off the laptop display and displays the image only on the TV, saving system resources.
☑️ Check before connection
It's worth noting that the quality of the transmission depends on the power of the laptop's processor and graphics card. If you notice artifacts or slowdowns, try lowering the resolution of the displayed image in the Windows display settings to 1920×1080 at frequency 60 Hz.
Using AirPlay 2 for MacBook Owners
Users of technology Apple can use the protocol AirPlay 2, which is built into modern televisions LG (2019 and newer models with support WebOS 4.0+). This method provides superior image quality and allows you to stream content directly from applications or mirror the entire macOS screen.
To start casting, click the Screen Mirroring icon in Control Center on your Mac or in the menu bar. Select your TV. LG from the list of devices. When connecting for the first time, a four-digit code may appear on the TV screen. This code must be entered on the computer for authorization.
In the AirPlay settings on your TV, you can set security options, such as requiring a code each time you connect or allowing access only to devices on the same network. This is an important aspect. cybersecurity, protecting your home network from unwanted connections.
| Parameter | Miracast (Windows) | AirPlay 2 (macOS) | Smart Share (LG) |
|---|---|---|---|
| Latency | Low | Minimum | Average |
| DRM support | Partial | High | Low |
| Audio quality | Standard | High | Basic |
| Stability | Depends on the drivers | Very high | Depends on the software version |
If you are using older versions of macOS that do not have native AirPlay 2 support, you can use third-party utilities such as AirServer or Reflector, installed on a PC, but for a Mac and LG TV connection this is usually not necessary.
What should I do if AirPlay doesn't detect my TV?
Make sure UPnP is enabled on your router. Check that the macOS firewall isn't blocking incoming connections to the AirPlay service. Also, try rebooting your router, as multicast traffic sometimes gets stuck in the routing table.
LG TV Plus and Smart Share app
Company LG developed my own application LG TV Plus (formerly LG Remote App), which allows you to not only control your TV from your smartphone but also stream multimedia content from your computer. Although the app's functionality is primarily focused on mobile platforms, there is a utility for PCs. Smart Share or the possibility of DLNA streaming.
To transfer files via DLNA, simply enable the function Media Server In Windows, open "Media Streaming Settings" in Control Panel and select your TV. LG and allow access. After that, your computer will appear in the "Sources" menu on your TV, and you'll be able to open videos and photos directly.
This method is convenient because it doesn't require constant screen mirroring and allows playback control with a remote control. However, it's not suitable for sharing desktops or browser tabs in real time, as it only transfers static files.
⚠️ Note: The interface and name of the applications may differ depending on the operating system version. WebOS and the TV's sales region. Up-to-date service names can always be found in the official LG Content Store.
Third-party solutions and browser extensions
When built-in tools fail or you need functionality beyond the standard, third-party applications come to the rescue. One of the most popular solutions is the program LetsView or ApowerMirrorThey work on both devices and allow you to stream your screen with minimal latency, even on older TV models.
For browser users Google Chrome There's a built-in broadcast feature. Click the three dots in the upper right corner, select "Save & Share" → "Broadcast." In the window that opens, you can choose to broadcast the entire tab, the entire screen, or a specific file.
- 🌐 Chrome Cast: Convenient for displaying websites and videos from YouTube, Netflix and other streaming services.
- 📹 OBS Studio: For advanced users, it allows you to create complex scenes and broadcast them as a virtual webcam or via RTMP.
- 📱 TeamViewer / AnyDesk: Although these are remote access programs, they can be used to display images on a TV by running the client on a PC and opening it in the TV's browser (if it supports Android TV or via a set-top box).
Using third-party software can often bypass limitations of the Miracast protocol, such as the lack of audio transmission on some TV models or issues with DRM content protection.
Troubleshooting connection and latency issues
Even with ideal settings, technical difficulties can arise. The most common issue is audio and video desynchronization or image freezing. This almost always indicates insufficient Wi-Fi bandwidth or interference from neighboring networks.
Try rebooting your router by unplugging it for 10-15 seconds. Another effective method is changing the Wi-Fi channel in the router settings to a less congested one (for example, 1, 6, or 11 for the 2.4 GHz band). For the 5 GHz band, it's best to use automatic channel selection or select channels 36-48.
If the problem persists, check if there are any background processes running on your laptop that are actively consuming traffic (cloud syncs, torrents, game updates). Channel width is critical for real-time video streaming.
Why is my TV not visible in the list of devices?
Most often, the problem lies with Windows Firewall or antivirus settings that block network detection. Try temporarily disabling protection or adding an exception for the Wireless Display service. Also, make sure the network in Windows is marked as "Private" and not "Public."
How to improve picture quality during broadcasting?
Make sure your laptop is within direct line of sight of the router. Walls and appliances (microwaves, baby monitors) can cause significant interference. If possible, connect your TV to the router via a LAN cable, leaving your laptop connected to Wi-Fi. This will reduce airtime and improve your TV's reception.
Is it possible to stream audio separately?
Yes, in Windows 10/11, after connecting, click on the speaker icon in the tray and select the TV LG as the default output device. If there's no sound, check the audio format settings in the playback device properties; sometimes switching from Dolby Digital to PCM helps.
Does streaming work over guest Wi-Fi?
Generally, no. Guest networks isolate devices from each other for security purposes. To stream, you need to connect to the main network or configure your router so that devices on the guest network can see local resources (if this feature is supported).
Does streaming affect laptop performance?
Yes, encoding a video stream in real time puts strain on the processor and graphics card. When running heavy applications or games, your laptop may slow down. It's recommended to close unnecessary browser tabs and background programs while streaming.
The secret to stable broadcasting
If you have a dual-band router, create a separate guest network just for media devices (TV and laptop) and connect them to it. This will isolate their traffic from other devices in the house.