Modern smartphones have powerful screens, but for the full-fledged viewing of movies in 4K or HDR, it is still better to use a large TV screen. Wireless transmission technologies data allows you to instantly stream content from your mobile device to the panel LG Smart TV, eliminating the need to search for cables or redownload files. This is especially convenient when you need to show photos to guests or watch a movie from an online cinema that isn't supported by the TV's built-in app.
There are several main protocols for implementing this task, each with its own operating features and software requirements. Owners of devices based on Android And iOS They can use both native operating system functions and third-party apps to achieve the best image quality. The main requirement for all methods is that both devices must be on the same local network. Wi-Fi.
In this article, we will examine in detail all the current connection methods, from built-in functions Screen Share Before using DLNA servers, you'll learn how to eliminate audio delays, improve image quality, and resolve common network device discovery issues. Proper setup will transform your TV into a true multimedia center.
Preparatory stage: checking the network and settings
Before you start broadcasting, you need to make sure that your home network is ready to transmit a heavy video stream. Connection stability This directly impacts the absence of stuttering and buffering while watching. If your router operates on a 2.4 GHz frequency, the speed may not be sufficient for high-resolution video, so it's recommended to switch to a different frequency. 5 GHz.
Both devices - a smartphone and a TV LG — must be connected to the same network. Users often encounter a situation where the phone "sees" the router, but is on a guest network or a different frequency channel, making them invisible to each other. Check your router settings and ensure the client isolation feature is enabled. AP Isolation disabled, otherwise the devices will not be able to exchange data.
⚠️ Important: If your router distributes two networks with the same name (2.4 and 5 GHz), make sure that both devices are connected to exactly one of them, and not to different frequencies, as some older router models block traffic exchange between ranges.
It's also worth updating your TV's software to the latest version. In the menu LG This is done through the settings section, where you need to select the system update option. New firmware versions often contain protocol bug fixes. Miracast And AirPlay 2, which is critical for stable operation.
Using the built-in Screen Share (Miracast) feature
The most common method for Android smartphone owners is to use technology Miracast, which LG implemented under the name Screen ShareThis protocol allows you to mirror your phone's screen to your TV in real time without installing any additional software. The image is transmitted directly via Wi-Fi Direct, ensuring fast response times.
To start working, press the button on the TV remote control Input or go to the application launcher menu. Find the icon Screen Share and launch it. A waiting-for-connection message will appear on the screen. On your smartphone, in the notification shade, look for the "Cast," "Smart View" (on Samsung), or "Projection" function. After searching for available devices, select yours. LG TV from the list.
☑️ Check before connection
It's worth noting that using this method will completely mirror your phone's screen onto your TV. This means all notifications, incoming calls, and messages will be visible on the big screen. If you plan to watch a movie, it's best to enable "Do Not Disturb" mode on your mobile device beforehand.
Why might the image be stretched?
Sometimes the aspect ratio of your phone's screen (for example, 20:9) doesn't match that of your TV (16:9). In this case, press the Adjust Picture or Zoom button on your LG remote to change the display mode to "Just Scan" or "16:9" for a correct picture without black bars.
Broadcast for iPhone and iPad users (AirPlay 2)
Apple owners are the luckiest ones, as modern TVs LG (2019 models and newer) support the native protocol AirPlay 2This allows you to stream videos, photos, and even the entire iPhone or iPad screen with minimal latency and high quality. No additional apps are required if your TV model supports this feature.
To start watching, open Control Center on your iPhone (swipe down from the upper-right corner or up from the bottom on older models). Tap the Screen Mirroring icon (two rectangles). Select your device from the list of available devices. LG Smart TVA confirmation code may appear on the TV screen, which you must enter on your smartphone for the first pairing.
It's important to understand the difference between casting a video from an app (such as YouTube or Netflix) and mirroring your screen. When playing a video within an app, tap the AirPlay (rectangle with a triangle) directly in the player. This will make your phone act as a remote control, allowing you to minimize the app or turn off the screen without interrupting your movie on TV.
| Characteristic | Miracast (Android) | AirPlay 2 (iOS) | DLNA |
|---|---|---|---|
| Transmission type | Screen mirroring | Duplication or flow | Media files only |
| Delay | Average | Low | Absent |
| Work in the background | No (the screen is on) | Yes (when streaming) | Yes |
| Quality | Depends on the signal | High (up to 4K HDR) | Original |
DLNA technology: viewing files from your phone's memory
If you need to play a video file saved on your smartphone or a movie from cloud storage, the best technology to use is DLNAUnlike Miracast, it doesn't mirror the screen, but transmits the media stream directly to the TV's decoder. This relieves the phone's processor, allowing it to be used for other tasks while watching.
On TVs LG There is already a built-in media player installed, often called Photos and videos or Media PlayerLaunch it, and it will automatically start searching for available servers on the network. You'll need a server app on your phone, such as VLC for Android, BubbleUPnP Or the standard "Gallery" app with Cast. Select the desired file in the app on your phone, press the Cast button, and select your TV.
⚠️ Please note: The DLNA protocol does not support streaming DRM-protected content from paid subscriptions (Netflix, Kinopoisk, iTunes Movies). For these services, use built-in Smart TV apps or the screen mirroring feature.
The advantage of this method is that the TV itself processes the video file. If your phone can't handle the format HEVC or 4K 60fpsThe TV can play them without any problems, as it uses its own decoding resources. Subtitles are also supported if they are embedded in the file or located in the same folder.
Third-party apps and Google Chromecast
Many modern televisions LG They run on the webOS platform, which doesn't have built-in Google Cast support (Chromecast built-in). However, if you have an Android smartphone, you can use intermediary apps. A popular solution is the app TV Cast for LG TV or the official app LG ThinQ, which turns your phone into an advanced remote control with media streaming capabilities.
You can also install the application Web Video CasterIt allows you to open a video on a website in your phone's browser and then send the link directly to your TV. The TV will download and play the stream automatically, bypassing your phone. This is the ideal way to watch movies from various online resources that don't have an official app. LG.
For users who value the Google ecosystem critically, there is a hardware solution: purchasing a set-top box. Chromecast with Google TVIt connects to the HDMI port and adds native support for streaming from any Android app. This bypasses the limitations of the TV's operating system and ensures maximum compatibility.
Solving connection and quality issues
Even with proper setup, technical difficulties may arise. The most common issue is that the TV isn't visible in the list of available devices. In this case, try rebooting the router, as multicast traffic needed to search for devices is sometimes blocked during extended network operation. Also, check if your router has a limit on the number of connected clients.
If the video is constantly buffering or choppy, try lowering the playback quality in the source app. The Wi-Fi signal where the TV is installed may be too weak. In such cases, using Wi-Fi repeater or switching to a wired connection to the TV via a LAN cable, if the model allows it.
Audio may lag behind video when using Miracast. This can be fixed in your TV settings: find "Audio Sync" or "AV Sync" and adjust the delay in milliseconds. Also, try disabling additional audio enhancements on your TV, such as Clear Voice or virtual surround sound, which can introduce processing delay.
Why doesn't my LG TV detect my phone?
Make sure your phone isn't using "Mobile Data" instead of Wi-Fi. Also, check your antivirus or firewall software on your smartphone, as it may be blocking local connections. Sometimes, removing the TV from your phone's paired device list and trying to find it again helps.
Is it possible to watch movies without the Internet?
Yes, if the files are stored on the phone's memory. DLNA or Miracast don't require internet access; the router simply needs to create a local network (or even if there's no router, you can share Wi-Fi from your phone, but then your phone's internet connection will be lost).
How to improve image quality when mirroring your screen?
In your phone's settings, find the "Cast" or "Smart View" section, tap the gear icon, and select the maximum resolution. Also, close background apps on your phone to free up CPU resources for encoding the video stream.