Modern multimedia systems allow you to turn ordinary viewing of content into a full-fledged cinema, and the key element here is the ability to display images from laptop On a big screen. Users often look for ways to get rid of unnecessary wires that get tangled underfoot and spoil the aesthetics of their interiors. Wireless data transmission technologies have advanced to such a level that signal lag is virtually non-existent, ensuring a smooth picture even when watching fast-paced scenes.
Equipment owners LG are in an advantageous position, as the company has implemented numerous protocols for convenient interaction with external sources. Connection via a local network WiFi This is the most popular method because it doesn't require any additional adapters or HDMI cables. All you need is a stable connection and proper configuration of both devices to enjoy high-definition content.
However, the synchronization process may have its own nuances depending on the operating system of your computer and the firmware version of the TV. For wireless mirroring to work correctly, both devices must be on the same subnet, that is, connected to the same router. In this article, we'll take a detailed look at all available connection methods, from built-in Windows tools to specialized software, and also explore methods for resolving common errors.
Preparing equipment and setting up the network
Before starting screen mirroring, you need to ensure your infrastructure is ready to handle heavy video streaming. Connection quality directly impacts image clarity and audio synchronization. Make sure your router supports the standards. 802.11n or newer, preferably in the 5 GHz band to ensure sufficient channel capacity.
Check that your laptop and TV LG Connected to the same access point. If you have a dual-band router broadcasting networks named "Home_2.4" and "Home_5G," both devices must be connected to one of these names; otherwise, they may simply not be able to see each other on the local network.
- 📶 Make sure the WiFi signal is stable and the reception level on both devices is at least two bars.
- 🔄 Check for firmware updates for your TV using the menu
Settings → All settings → Advanced → About TV. - 🔒 Disable client isolation on your router if this feature is enabled, as it blocks communication between devices within the network.
⚠️ Note: Some antivirus programs and Windows firewalls may block incoming connection requests from the TV. If problems occur, temporarily disable protection or add exceptions for device discovery services.
Using Miracast Technology in Windows 10 and 11
Microsoft operating systems come with a built-in wireless display feature based on the standard MiracastThis is the most direct way to broadcast an image, as it does not require the installation of additional software. TVs LG support this protocol out of the box, calling the function "Screen Share" or "Broadcast".
To start the process on a Windows 10 or 11 computer, open the Action Center and select "Project." The system will begin searching for available devices within range. If the TV LG is in connection standby mode, it will appear in the list of available displays.
Miracast Activation Checklist
After selecting a device, a connection confirmation message may appear on the TV screen. Use the remote control to grant access. You can select the operating mode in the "Projection" menu: mirroring screens, extending the desktop, or using the TV solely as a second monitor.
| Opening hours | Description | What is it suitable for? |
|---|---|---|
| Duplicate | Full copy of the image from the laptop | Presentations, photo viewing |
| Expand | TV becomes a second monitor | Multitasking, working with windows |
| Second screen only | The laptop screen goes blank, only the TV works. | Watching movies, playing games |
It is important to note that when using Miracast The load falls on the WiFi module and the laptop's processor. If you plan to stream 4K video, make sure your router supports high data transfer rates, otherwise you may experience lag.
What to do if Windows doesn't see the TV?
If the search doesn't yield any results, try updating your WiFi adapter drivers. Go to Device Manager, find your network adapter, and select "Update Driver." Also, make sure the "WLAN AutoConfig" service is running and running automatically.
Streaming via the LG TV Plus app and Smart Share
Company LG developed an ecosystem of applications that allow for more flexible content management than standard mirroring. The application Smart Share (or its newer equivalents depending on the webOS version) allows you to stream media files, not just mirror your screen. This is especially convenient if you want to show a specific video or photo from your gallery.
For more advanced control, you can use the app LG TV Plus, available for mobile devices and PCs. It allows you to not only stream content but also use your smartphone or tablet as a remote control and enter text from your computer keyboard, making it convenient for searching YouTube videos through your TV's interface.
- 📱 Download the official LG ThinQ or TV Plus app to your device.
- 🔗 Complete the pairing process by scanning the QR code on the TV screen.
- 📂 Select the file in your computer's file explorer and use the "Send to device" option in the context menu.
The advantage of this method is its lower system load compared to full desktop mirroring. The TV decodes the video stream itself, receiving only a link or playback command, resulting in a smoother picture and high image quality without compression artifacts.
⚠️ Note: The LG TV menu interface may differ depending on the webOS version (3.0, 4.0, 5.0, 6.0, and later). The location of apps may vary, so look for the "Mobile Device Connection" or "Home Network" sections.
Connecting MacBook and Apple devices via AirPlay 2
Apple owners are even luckier, as modern TVs LG support technology AirPlay 2This allows you to display your MacBook, iPad, or iPhone screen on a larger screen with minimal latency and high quality. Deep integration ensures a stable connection.
To get started, make sure AirPlay support is enabled on your TV. It's usually activated automatically, but you can check this in the section Settings → Mobile Device Connection → AirPlayOn macOS, simply click the "Screen Mirroring" icon in the menu bar and select your TV from the list.
The system may request a confirmation code that will appear on the TV screen. Enter it on your computer to complete the pairing. After this, you'll be able to not only mirror your screen but also use the TV as a separate display in macOS Displays settings, adjusting the resolution and refresh rate.
- 🍏 Make sure Bluetooth is enabled on all devices, as it is used for initial discovery.
- 🔊 The sound will automatically switch to the TV, but you can return it to your MacBook through the sound menu.
- 🛡️ In the AirPlay settings on your TV, you can set the requirement to enter a code every time or only the first time you connect.
Technology AirPlay 2 It also supports multi-room audio, allowing you to sync sound with other compatible devices in your home. This makes watching movies or listening to music truly immersive and distributed throughout your living space.
Broadcast via Google Chrome browser and Chromecast
If the built-in operating system tools for some reason do not work or do not satisfy you in terms of functionality, you can use the browser Google ChromeMost modern televisions LG have built-in support for Chromecast technology or are compatible with it via the DIAL protocol.
Open the Chrome browser on your laptop, click the three dots in the upper right corner, and select "Cast." The browser will scan the network and prompt you to select a output device. You can cast a specific tab, the entire desktop, or an audio file.
This method is especially convenient for showing web pages, Google Slides presentations, or videos from websites that don't have a built-in cast button. The quality of the stream depends on the laptop's processor, as it encodes the video stream in real time.
| Parameter | Chrome tab | Full screen |
|---|---|---|
| CPU load | Low | High |
| Permission | Dynamic | Fixed (native) |
| Sound | Only from the tab | All system sound |
It's worth keeping in mind that when streaming an entire browser tab, audio may be slightly delayed relative to video. This is usually unnoticeable for movies, but when playing browser games, the desync can be noticeable.
Troubleshooting and troubleshooting
Despite the advancement of technology, wireless connections can be unstable. If you're experiencing issues with your TV not detecting your laptop, or the image constantly buffering, troubleshooting is necessary. Often, the problem lies in your WiFi adapter's power-saving settings or an IP address conflict.
Try rebooting your router by completely unplugging it for 10-15 seconds. This will clear the network cache and reallocate channels, which may improve signal quality. Also, check if your router has any speed limits set for specific devices (QoS).
- 🔌 Update your laptop's wireless adapter drivers to the latest version from the manufacturer's website.
- 📡 Switch your router to 802.11n/ac/ax only mode, disabling legacy b/g modes if your devices allow it.
- 🧹 Clear the list of devices in the Bluetooth and WiFi menus on both devices by deleting old pairing profiles.
⚠️ Note: If you're using a corporate WiFi network or a dorm/hotel network, screen sharing may be blocked by network security settings (client isolation). In this case, the only solution is to create your own access point using a smartphone or portable router.
In some cases, resetting the network settings on the TV helps. LGThis won't delete your apps, but it will restart the network modules. Go to network settings and select "Advanced settings" → "Edit" → "OK" (to reconnect) or perform a full network reset.
Secret diagnostic method
Enable the guest network on your router and connect both devices to it. This will create an isolated environment without unnecessary traffic from other devices, which can often help determine whether the problem is due to congestion on the main channel.
Frequently Asked Questions (FAQ)
Why is there a significant audio delay when sharing my screen over WiFi?
Audio latency is often caused by WiFi congestion or low encoding speeds. Try switching your router to the 5 GHz frequency, if possible, as it's less noisy. Also, close background apps on your laptop that may be consuming bandwidth.
Is it possible to broadcast a screen if there is no internet access, but there is a router?
Yes, Miracast, AirPlay, and DLNA don't require internet access. Devices must be connected to the same router, even if the router doesn't have access to the external network. A local network will work correctly for video streaming.
Does my old LG TV support wireless connectivity?
Most LG Smart TVs released after 2014 support Miracast. Older models may require a special WiFi adapter (dongle) that plugs into the TV's USB port, or an external device such as a Chromecast or Apple TV.
How to reduce the load on your laptop battery when streaming?
Wireless video streaming uses a lot of power. It's recommended to keep your laptop plugged in. You may also want to reduce the laptop's screen brightness if you're using extended display mode, as the laptop's display is still active.