Modern technology makes it possible to transform the living room into a true multimedia center without the need to run unnecessary cables across the floor. Streaming images from a laptop to a large screen is becoming standard for watching movies, presentations, or playing games. LG owners can take advantage of built-in Smart TV features for wireless connectivity.
There are several proven methods for accomplishing this task, each with its own specific features and software requirements. We'll look at the most effective methods available to Windows and macOS users. It's important to understand that connection quality directly depends on the stability of your local network and the specifications of your router.
In this article, we'll cover the setup process in detail, including possible errors and troubleshooting steps. You'll learn how to use native system tools and specialized manufacturer utilities. This will allow you to enjoy content on the big screen with minimal lag.
Preparatory stage: checking the network and equipment
Before you start pairing devices, you need to make sure that both gadgets are in the same connection conditions. CriticalMake sure your laptop and TV are connected to the same Wi-Fi network. If you have a dual-band router, make sure both devices are operating on the same frequency, preferably 5 GHz to reduce latency.
Check the software version of your LG TV. Outdated firmware may not support modern data transfer protocols or may experience errors. Updating the system often resolves compatibility issues with new laptop graphics card drivers.
⚠️ Warning: Using a guest Wi-Fi network or corporate networks with client isolation will make wireless connections impossible. Devices simply won't see each other in the list of available devices.
It's also worth paying attention to the distance between the router and the signal receiver. Walls that are too thick or the presence of strong sources of interference can significantly reduce channel throughput. A stable signal is required for comfortable viewing of high-definition video.
Using the built-in Screen Share (Miracast) feature in Windows
Windows 10 and 11 operating systems have built-in support for Miracast technology, often referred to as Screen Share in the LG interface. This method doesn't require any additional software and works within the wireless adapter's drivers. First, make sure the appropriate app is running on your TV.
On LG TVs with webOS, you need to find and launch the application Screen Share or Connecting to a mobile deviceOn some models, it may simply be called "Broadcast." Once launched, the TV will enter connection standby mode, displaying the device's name on the screen.
What should I do if the Screen Share app won't launch?
If the default app isn't working, try searching for the "LG TV Plus" app in the Smart TV menu or refreshing the app list in the LG Content Store. In rare cases, you may need to reset the TV's network settings via the All Settings -> Network menu.
On your laptop, press the key combination Win + KThe "Connection" panel will appear on the right, where the system will begin searching for available wireless displays. Find the name of your LG TV in the list and click it to begin pairing.
A connection confirmation prompt may appear on the TV screen. Use the remote control to grant access to the laptop. After a successful handshake, the image from the desktop or extended screen will appear on the TV.
☑️ Check before connecting Miracast
Setting up AirPlay 2 for MacBook and iMac owners
Apple users can take advantage of the AirPlay 2 protocol, which is supported by many modern LG TV models. This ensures more stable video and audio transmission compared to universal standards. Integration works natively in macOS, without the need for additional software.
To get started, make sure your LG TV supports AirPlay 2 (usually 2019 and newer models). In your TV settings, go to General and find the item Apple AirPlayMake sure the feature is activated.
On a MacBook, click the "Control Center" icon in the menu bar or press the Cast button in the player. Select your LG TV from the list of devices. If a verification code is required, it will appear on the TV screen and will need to be entered on your computer.
Using the LG TV Plus app for advanced control
Official app LG TV Plus (formerly known as LG Smart View) provides deeper control over your streaming experience than standard OS tools. It allows you to not only mirror your screen, but also control media playback and use your smartphone or tablet as a remote control.
You can download the app from the Microsoft Store for Windows or the Mac App Store. After installation, the program will automatically scan your network and find compatible TVs. The interface is intuitive and divided into logical control blocks.
The app's "Mobile PC Link" feature allows you to stream folder contents or start streaming videos directly from the program interface. This reduces the load on the laptop's processor compared to full desktop mirroring.
| Function | Description | Requirements |
|---|---|---|
| Screencasting | Full image duplication | Wi-Fi Direct |
| Remote control | Controlling your TV with a keyboard | LAN/Wi-Fi network |
| Media player | Play photos and videos from your PC on your TV | DLNA/UPnP |
| Sound mode | Transferring audio to external speakers | Bluetooth/Wi-Fi |
Broadcasting via Google Chrome browser (Chromecast)
If your LG TV has built-in Chromecast support or a Chrome or Android TV box is connected, you can use the Google Chrome browser to cast a tab or the entire screen. This is a universal method that works on any operating system.
Open the Chrome browser on your laptop and click the three dots in the upper right corner of the menu. Select the option Broadcast (Cast). The browser will search for available devices on the local network.
You can choose to cast a single tab, the entire desktop, or a specific media file. When selecting the "Full Screen" source, ensure the resolution meets your TV's recommendations to avoid black bars at the edges.
⚠️ Please note: When streaming via the Chrome browser, the load on your laptop's processor may increase significantly, especially when selecting the "Full Screen" option. This can lead to increased device heating and reduced background task performance.
Troubleshooting: Lag and No Image
The most common problem with a wireless connection is audio and video desynchronization or complete image lag. This is often due to Wi-Fi congestion from neighboring routers. Try changing the broadcast channel in your router settings to a less congested one.
If your laptop doesn't detect your TV, check your Windows Firewall settings. The network should be marked as "Private," not "Public." In the public profile, the system blocks device detection for security reasons.
It's also worth checking that WPS is enabled on your router, although it's not always necessary for stable Miracast operation. Restarting the router and all devices in the chain often resolves issues with frozen discovery services.
Alternative options: DLNA and third-party software
To transfer static content, such as photos or videos, you can use the DLNA protocol. In Windows 10/11, simply right-click the file, select "Cast to device," and select your LG TV.
There are also third-party programs, such as LetsView or ApowerMirror, that offer additional features, such as controlling your computer with a TV remote or screen recording. However, these may require client installations on both devices.
Using third-party software is justified if standard OS tools don't work correctly or if specific functionality is required. Keep in mind that free versions of such programs often have session time or image quality limitations.
Why isn't my LG TV showing up in the list of available devices?
Most often, the problem is that the devices are on different subnets (for example, one is connected to the main SSID, the other to the guest SSID). An outdated wireless adapter driver on the laptop or a disabled Projector service in Windows could also be the cause.
Can you play games on TV via Wi-Fi?
Technically, it's possible, but for fast-paced shooters or racing games, input lag over Wi-Fi will be too high and make the experience uncomfortable. For static or turn-based strategy games, a wireless connection is perfectly suitable.
How to improve picture quality during broadcasting?
Make sure your laptop is connected to a 5 GHz network. In your NVIDIA or AMD graphics settings, try lowering the output resolution or frame rate if the connection is unstable. Also, disable background downloads on other devices on the network.