Modern multimedia systems make it easy to display content from mobile devices on a large screen, and for equipment owners LG This process is often the first step towards full use. Smart TVThe ability to stream images from a smartphone to a TV via Wi-Fi allows you to watch movies, photos, and even gameplay in high definition without the hassle of cables. Users appreciate this feature for its convenience when sharing presentations or watching videos with others.
Wireless data transmission technology is based on standards Miracast And DLNA, which are built into most modern TV models LG based on the operating system webOSYou don't need to be a network expert to set up the connection, as manufacturers have simplified the menu interface as much as possible. Simply ensure both devices are connected to the same local network and complete a few simple settings steps.
In this guide, we'll cover all available synchronization methods in detail, examining both the system's built-in features and the capabilities of third-party software. You'll learn how to avoid image lag, which video formats are supported natively, and what to do if your TV isn't detecting your phone. The key to stable operation is that the smartphone and TV are on the same router subnet, even if a guest Wi-Fi network is used.
How Wireless Broadcasting Works on LG TVs
The basis for transmitting video streams in the ecosystem LG serves technology Screen Share, which is an implementation of the protocol MiracastThis standard enables the direct transmission of high-quality video and audio signals between devices using Wi-Fi Direct. The main advantage of this method is that it doesn't require an active internet connection; all that's required is a working Wi-Fi module in both devices.
Unlike Chromecast, which requires a controller app on your phone, the native function Miracast works at the operating system level Android And Windows. TV LG In this case, it acts as a sink, creating an access point or connecting to existing infrastructure. This ensures minimal latency, which is critical when displaying dynamic content or games.
There is also technology DLNA, which is more often used for streaming media files rather than full screen cloning. With DLNA, you select a specific video or photo from your gallery and send it to your TV, whereas Screen Share broadcasts everything that happens on your smartphone's display in real time. Understanding this difference will help you choose the right tool for the job.
⚠️ Please note: When using the Miracast protocol in Wi-Fi Direct mode, the connection speed may be lower than when connecting through a shared router, especially if there are physical obstacles between the devices.
Preparing devices for synchronization
Before you begin setup, you need to make sure your equipment is ready to use. First, check that your TV LG and the smartphone are connected to the same network Wi-FiIf you have a dual-band router, make sure both devices are on the same frequency band (e.g., 5 GHz), although modern routers usually combine them into a single network.
The TV needs to be configured to accept external connections. To do this, go to the apps menu and find the program. Screen Share or Connection menuIn new models webOS This function can be built into the quick access panel, which can be called up by pressing the settings button on the remote control.
☑️ Checking connection readiness
It is also important to pay attention to the operating system version of your smartphone. Android The function may be called differently depending on the manufacturer: Smart View at Samsung, Broadcast on pure Android, Screen mirroring Xiaomi. Devices based on iOS use the protocol AirPlay 2, which is supported by many new models LG.
Using the built-in Screen Share feature
The most reliable way to display an image is to use the built-in application. Screen Share, pre-installed on all Smart TVs LGAfter launching the app, a connection waiting window will appear on the TV screen, displaying the device's name and user instructions. At this point, the TV is actively searching for available devices on the network.
On your smartphone, open the settings or notification panel and find the option for wireless projection. After scanning the network, your TV's name should appear in the list of available devices. LGClick on it, and a connection confirmation request may appear on the TV screen, which you will need to accept with the remote.
| Parameter | Description | Recommended value |
|---|---|---|
| Protocol | Data transmission technology | Miracast / Wi-Fi Direct |
| Permission | Output image quality | 1920x1080 (Full HD) |
| Delay | System response time | Less than 100 ms |
| Audio | Sound transmission | Synchronized |
If the connection is successful, your phone's screen will be mirrored to the TV. You can switch apps, scroll through social media feeds, or play videos, all while viewing them on the large display. To end the session, simply disconnect from the notification menu on your smartphone or close the app on the TV.
Stream from iPhone and iPad via AirPlay 2
Equipment owners Apple can use the built-in function AirPlay, which provides a stable connection to TVs LG, supporting this protocol. To get started, make sure AirPlay support is enabled on your TV in the settings. Settings → Connection → AirPlayThis ensures that the TV is visible to Apple devices on the network.
On your iPhone or iPad, open Control center (swipe down from the top right corner or up from the bottom, depending on the model). Tap the icon Screen mirroring (two rectangles) and select your TV LG from the list. The system will request a confirmation code, which will be displayed on the TV screen—enter it on your smartphone.
The advantage of using AirPlay 2 is the ability to stream video directly from apps, bypassing full screen mirroring, which saves battery life. Furthermore, this protocol provides better audio and video synchronization compared to the universal Miracast. Image quality automatically adapts to network capabilities.
⚠️ Note: When casting via AirPlay, notifications received on your iPhone (messages, calls) will also appear on the TV screen. It is recommended to enable Do Not Disturb mode before starting to watch.
Using the LG TV Plus app to control
Official app LG TV Plus (formerly known as LG Remote) offers advanced control capabilities but is limited to screen mirroring. It's ideal for navigating TV menus from your phone, entering text using your smartphone's keyboard, and transferring photos or videos from your gallery.
To use the app, download it from Google Play or App Store and start a network scan. Once paired with your TV, you'll have access to the virtual remote and the Screen Share within the app. However, for full screen mirroring, it's better to use the system tools described above.
The app lets you create playlists and control playback of content running on your TV. It's a handy tool if you want to use your smartphone as a multimedia remote control without having to fumble around for a physical remote. Magic RemoteIntegration with voice assistants also works through this app.
Third-party solutions and alternative methods
If standard methods don't work or you need additional features, you can use third-party applications. Popular programs such as Cast to TV, Web Video Caster or BubbleUPnP, often handle certain file formats better or allow you to stream content from browsers that block built-in streaming.
For TVs LG on older versions webOS, which do not have built-in AirPlay support or have problems with Miracast, you can install the application AirScreen or Receiver for LG straight from the store LG Content StoreThese programs emulate a signal receiver and allow you to connect your phone as if it were a regular output device.
Another option is to use browsers with the Cast feature. For example, in the browser Google Chrome On Android, you can tap the menu and select "Cast," then select TV LG (if it supports Chromecast built-in or emulation). This allows you to display a specific browser tab on the big screen.
Troubleshooting and quality adjustment
The most common issue is that the TV doesn't detect the phone. In this case, make sure AP Isolation isn't enabled on the router, which prevents devices on the same network from communicating. Restarting the router and both devices, which clears the network service cache, also helps.
If the image is choppy or has low resolution, check the Wi-Fi channel load. When using the 2.4 GHz band, interference from neighboring networks can significantly reduce the stream quality. Switch to 5 GHz usually solves the problem of delays and image 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 settings items may vary, so be sure to follow the actual actions, not just the section names.
To improve the sound quality while streaming, you can change the audio output settings in the TV menu. If the audio lags behind the video, try adjusting the sync setting in the streaming app on your phone or reducing buffering. In some cases, changing the smartphone's screen resolution before connecting helps.
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 networks (for example, a phone on mobile data or guest Wi-Fi). It's also possible that the Screen Share service on the TV isn't running or is blocked by the router's firewall. Try manually launching the Screen Share app on the TV and refreshing the list on your phone.
Is it possible to stream a screen with less than 1 second of latency?
Yes, this is possible using Wi-Fi Direct (Miracast) technology and when the devices are in close proximity to the router or to each other. Using the 5 GHz band significantly reduces latency compared to 2.4 GHz. However, for professional applications (such as eSports), a wireless connection will always be inferior to wired HDMI.
Is the phone's system notification sound broadcast?
With full screen mirroring (Miracast/Screen Share), all audio is transmitted, including notifications, ringtones, and keyboard sounds. When using the Cast feature within specific apps (YouTube, Netflix), only the audio of the media content is transmitted, while system sounds remain on the phone.
Will the broadcast work if there is no internet access?
Yes, Miracast and Wi-Fi Direct operate within a local network and don't require internet access. The key is that the devices' Wi-Fi modules are working properly. However, some apps or DRM license verification may require internet access before streaming.
How do I turn off the broadcast?
The easiest way to do this is through the notification bar on your smartphone by pressing the "Disconnect" or "Stop Casting" button. You can also press the "Exit" or "Back" button on your TV remote if you're in the Screen Share app. The connection is disconnected instantly.