Modern technologies make it possible to transform a regular laptop or desktop PC into a powerful multimedia center, streaming content directly to a large screen. The question of how to share images from a computer to a TV via LG Wi-Fi is becoming increasingly important for those who want to watch movies, presentations, or play games without HDMI cables. A wireless connection eliminates the clutter of cables and allows freedom of movement around the room.
Technology Miracast and built-in functions Smart Share LG TVs make this process as simple as possible for the user. You don't need to be an engineer to set up high-definition video transmission. Simply connect both devices to the same local network, and you're ready to go.
In this article, we'll take a detailed look at all available connection methods, from standard Windows tools to specialized software. We'll explore the nuances of working with various operating systems and troubleshoot common issues users encounter when first starting a broadcast.
Preparing equipment and network
The first and most important step is to ensure a stable connection between your devices. For high-quality image transmission without interruptions or lags, your computer and LG TV must be connected. the same Wi-Fi networkIf you have a dual-band router, make sure both devices are on the same frequency, preferably 5 GHz, as it provides higher throughput.
Make sure your TV has Smart TV enabled and the wireless module is activated. In the menu LG Smart TV This is usually indicated by an antenna or Wi-Fi icon in the top corner of the screen. If the TV is connected via a LAN cable and the computer via Wi-Fi (or vice versa), in some complex network configurations, the router may isolate the devices from each other. Therefore, connecting both devices wirelessly to a single access point is considered ideal.
⚠️ Important: If your router supports the "Guest Network" feature, do not connect devices to it for streaming. Guest network security protocols often block detection of devices within the local network, preventing your computer from seeing the TV.
It's also worth updating your TV's firmware to the latest version. Manufacturers regularly release patches that improve stability. DLNA And MiracastGo to your TV settings, find the "General" or "Support" section, and select "Software Update." This may take a few minutes, but it ensures compatibility with the latest Wi-Fi encryption standards.
Using the built-in Windows feature (Miracast)
The fastest way that does not require installing additional software is to use technology Miracast, which is built into Windows 10 and Windows 11. This technology allows you to duplicate your screen or extend your desktop to an LG TV that supports the function. Screen ShareOn your LG TV remote, press the app launcher button and look for the "Screen Share" icon.
After launching the application on the TV, press the key combination on the computer Win + KThe "Connection" panel will appear on the right, where the system will search for available wireless displays. Your LG TV should appear in the list. Click it, and after a few seconds, the monitor's image will appear on the big screen.
For more fine-tuning of the operating mode, click Win + PThere are four modes available here:
- 🖥️ Computer screen only — the image remains on the monitor, the TV goes out.
- 🔁 Recurring — the picture on the monitor and TV is the same (mirroring).
- ➕ Expand — the TV becomes a second monitor, you can drag windows onto it.
- 📺 Second screen only — the monitor goes dark, the image is only on TV (convenient for movies).
It's important to understand that using Miracast puts a strain on your Wi-Fi module. If you plan to stream 4K video, make sure the signal is strong. Otherwise, compression artifacts or audio desync may occur.
☑️ Miracast setup checklist
Setting up DLNA using standard Windows tools
If your goal is not to broadcast your entire desktop, but just to show photos, video files, or music stored on your hard drive, it is better to use the protocol DLNAUnlike Miracast, it doesn't burden the computer's processor with encoding the video stream in real time, but simply transfers files. The LG TV treats the computer as an external drive.
To enable this feature in Windows, open Settings → Network & Internet → Sharing Options. Turn on Network Discovery and File and Printer Sharing. Then, find the folder containing your media files, right-click, select Properties → the Sharing tab, and enable sharing. Alternatively, you can use the Streaming Media Settings menu in Control Panel, where you can explicitly allow your LG TV to access the content.
After setting up, press the button on the TV remote control Input Or go to the "Media" menu (Home Dashboard). There you'll see your connected devices. Select your computer, and you'll have access to your shared folders. Navigation is done using the remote, which is great for browsing family albums or watching movies.
| Parameter | Miracast (Broadcast) | DLNA (Media) | HDMI (Cable) |
|---|---|---|---|
| Quality | Depends on Wi-Fi | Original (no loss) | Maximum |
| Delay | Yes (0.5-2 sec) | Minimum | Absent |
| Interactivity | Full (PC management) | Limited (player only) | Full |
| PC load | High | Low | Low |
⚠️ Please note: The DLNA protocol does not support all audio and video formats. If your TV displays "Format not supported" even though the file opens on your PC, you'll need a third-party media server (such as Plex or Kodi) that will stream content with on-the-fly transcoding.
Broadcasting via Google Chrome browser
The Google Chrome browser has a built-in Chromecast feature, which makes it easy to cast content to an LG TV if it supports Chrome Cast or you use an external set-top box. Even without a set-top box, many modern LG models have built-in support for the Google Cast protocol.
Open the Chrome browser on your computer. Click the three dots in the upper-right corner of the menu and select "Cast." The browser will scan the network and prompt you to select a device. You can cast a single browser tab or your entire screen. This method is especially convenient if you want to show website content or online movie theater videos that don't have DRM protection against screen copying.
The advantage of this method is its cross-platform compatibility. It doesn't matter which operating system you use—Windows, macOS, or Linux. The main thing is to have the Chrome browser installed. Transmission quality is typically higher than with standard Miracast, as it uses a more efficient compression codec.
Why does the picture lag during broadcasting?
The main cause is low Wi-Fi speed or interference. Try closing torrents on other devices, moving closer to the router, or switching the router to a less congested channel. High CPU load during video encoding can also cause freezes.
Specialized software: LG TV Plus and AirPlay
For owners of Apple equipment (MacBook, iMac) and iOS users, the issue of support is relevant AirPlay 2Modern LG TVs (2019 models and newer) have built-in AirPlay support. To share an image, simply click the "Screen Mirroring" icon in Control Center on your Mac or iPhone and select your LG TV. No additional software is required; everything works natively via Apple's protocol.
For Android and Windows users, the official app is a great solution. LG TV PlusIt's available in the Microsoft Store. The app not only lets you control your TV from your smartphone or PC, but also stream photos and videos from your computer's gallery to the big screen. The app's interface is intuitive: after pairing (confirming the PIN on the TV screen), you gain access to the file system.
If the built-in tools don't work, you can turn to third-party solutions. Program LetsView or AirServer Allow you to emulate AirPlay/Miracast reception on your computer and vice versa. They often offer more flexible bitrate and resolution settings, which is critical for designers or video editors who value color reproduction.
Solving typical problems and diagnostics
Despite the simplicity of the technology, users often encounter problems with their computer not seeing their TV. The first reason is different IP addresses on the subnets. Make sure the two devices aren't separated by VLANs or router settings. The second common issue is outdated Wi-Fi adapter drivers on the computer. Go to Device Manager, find the network adapter, and update the driver through the laptop manufacturer's website.
Another important aspect is antivirus software. Windows Firewall or a third-party antivirus program may be blocking incoming connections for the DLNA or Miracast protocol. Try temporarily disabling the firewall or adding an exception rule for "Private Networks." Also, make sure your Wi-Fi adapter's power settings are set to full power, not power saving mode.
If you see a picture but no sound, check your playback devices. Click the speaker icon in the Windows tray and select your LG TV as the default output device. Sometimes, restarting the Windows Audio service or completely unplugging the TV for 10 seconds (to relieve static) can help.
⚠️ Please note: TV operating system interfaces and firmware are constantly being updated. The location of menu items may differ from what is described. If you cannot find a specific setting, use the search in the TV settings menu or refer to the official documentation for your model on the manufacturer's website.
Why isn't my LG TV showing up in the list of available devices?
The most common issue is that the devices are on different subnets or client isolation mode is enabled on the router. Also, make sure that a signal-receiving app (such as Screen Share) is running on the TV, as some LG models are not visible for search if the app is closed.
Can you play games on TV via Wi-Fi?
Technically possible, but not recommended for fast-paced shooters or fighting games. Input lag over wireless streaming ranges from 100 ms or higher, making gaming uncomfortable. For gaming, it's better to use an HDMI cable or cloud gaming via the TV's built-in browser.
How to improve picture quality if it's blurry?
Go to the projection settings on your computer (Win+P -> Advanced display settings) and make sure the resolution is set to the native resolution for your TV (usually 1920x1080 or 3840x2160). You can also try changing the aspect ratio or display mode in the Screen Share app on your TV.
Does my old LG TV support wireless streaming?
Models prior to 2014 may not have built-in Miracast. In this case, you'll need to purchase an external adapter (such as a Google Chromecast, Amazon Fire Stick, or Xiaomi Mi Stick) that plugs into the HDMI port and receives the signal via Wi-Fi.