Modern technologies make it easy to transform a living room into a multimedia center or expand your workspace without running unnecessary cables. wireless network For displaying images from your computer on a large screen, it's not only convenient but also aesthetically pleasing. You no longer need to run an HDMI cable across the room if your Smart TV and the PC are on the same local network.
However, to achieve a stable image and minimal latency, it's important to configure your equipment correctly. In this article, we'll cover various connection methods, from standard screen projection to specialized software. You'll learn how to transform your LG TV into a full-fledged second monitor or media panel.
First of all, make sure both devices are connected to the same Wi-Fi routerThis is a basic requirement for all the methods described below. If the computer is connected via a LAN cable and the TV via WiFi, they must still be on the same subnet to see each other.
There are several basic ways to accomplish this task, each with its own advantages. The method you choose depends on what you want to do: watch movies, give presentations, or work with text. For gaming and fast-paced content, wireless connections can introduce noticeable latency, so wired HDMI remains the preferred option for gamers.
Preparing equipment and network
The first step is to ensure a stable connection. The quality of your video stream directly depends on your bandwidth. routerIf you have an old standard 802.11n, the picture may slow down, especially in high resolution.
It is recommended to use a range 5 GHz, which provides higher data transfer rates than the traditional 2.4 GHz band. Check your router settings and ensure this band is enabled.
⚠️ Important: The distance between the router and the TV shouldn't be too great. Walls and household appliances can significantly weaken the signal, leading to connection interruptions.
It's also worth updating the software on both your computer and your TV. In the menu LG This is done through the settings section, and on a PC, through Windows Update. Latest drivers often contain fixes for wireless protocols.
Miracast Method: A Built-in Windows Feature
The easiest way, which does not require installing additional software, is to use technology MiracastIn Windows 10 and 11, this feature is built in by default and is called "Projection." TVs LG WebOS also support this protocol natively.
To get started, press the key combination on your keyboard Win + KA connection panel will appear on the right. Your TV should appear in the list of available devices. If it's not visible, check that the TV's reception function is enabled.
On your LG TV remote, press the button Input Or go to the main menu and select the "Screen Share" or "Connect to Mobile Device" app. Once the connection is confirmed, the desktop image will appear on the TV screen.
In the projection settings (button Win + P) you can select the operating mode:
- 🖥️ Second screen only — the image will only be on the TV, the PC monitor will go out.
- 🔗 Repeat — complete cloning of the image from the monitor to the TV.
- 📐 Expand — the TV will become an extension of the desktop, you can drag windows between screens.
- 💻 PC screen only — the image on the TV will turn off.
Using DLNA for multimedia
If your goal is not to control the computer, but to view movies or photos stored on the hard drive, it is better to use the protocol DLNAIt provides more stable playback of high-quality video files without overloading the interface.
In Windows, you need to set up folder sharing. Open "Streaming Media Settings" in Control Panel. Select your TV from the list and allow it to access content.
After setting up your LG TV, launch the "Photos & Videos" or "Media" app. Select your computer from the sources. The folder structure will be accessible directly from the remote.
This method is ideal for watching 4K movies, as the TV handles the decoding itself, and the computer merely transmits the data stream. However, using the TV as an interactive monitor in this mode is not possible.
| Parameter | Miracast | DLNA | Third-party software |
|---|---|---|---|
| Interactivity | Full | Absent | Full |
| Latency | Medium/High | Low (for video) | Depends on the network |
| Picture quality | It's shrinking | Original | Customizable |
| Sound | It is transmitted | It is transmitted | It is transmitted |
Remote Desktop Applications
For more advanced management, when built-in Windows tools are unstable, you can use third-party solutions. Programs like TeamViewer, AnyDesk or specialized software for Smart TV (for example, LetsView) often show better results.
Install the selected application on your computer and find its equivalent in the app store LG Content Store on the TV. After launching the program, you must enter the pairing code or scan the QR code on both devices.
The advantage of such programs is the ability to control the computer with a remote control or a connected mouse, if the TV supports USB input. This turns the TV into a giant touch monitor (with some limitations on control).
☑️ Pre-launch check for apps
Some apps allow you to stream audio separately, which can be useful if your main audio system is connected to your PC and the picture is output to your TV. Audio settings are usually located in the app's menu.
Setting resolution and refresh rate
Once successfully connected, it's important to configure the display settings correctly. Resolution mismatches can result in stretched images or blurry text. Go to Settings → System → Display on the computer.
Select the display that matches your TV (usually marked as 2). Set the recommended resolution, which for most modern LG models is 1920×1080 or 3840×2160 (4K).
⚠️ Important: When setting 4K resolution over WiFi, ensure your router and network card support high bandwidth. Otherwise, the Windows interface will experience noticeable lag.
Also check the scaling. For TVs located 2-3 meters away, it's often necessary to increase the scaling to 150% or 200% to make text readable. This can be done in the same display menu.
The refresh rate over a wireless connection is often limited 30 Hz or 60 Hz Depending on the bandwidth usage, this is sufficient for office work and video, but for dynamic games, image quality may need to be reduced to increase FPS.
Troubleshooting and Delays
The most common issue when connecting an LG TV to a PC via a router is audio and video desync or cursor lag. First, try rebooting the router, as it may be overheating or running out of buffer space.
If the picture drops out intermittently, check whether other devices on the network are using the bandwidth intensively. Downloading large files or streaming on other devices can choke the video stream.
Secret router settings
Some routers allow you to prioritize traffic (QoS). Find the Quality of Service settings and set the MAC address of your computer or TV to high priority.
It's also worth trying disabling your antivirus or firewall while troubleshooting. Sometimes they block ports needed for stable video data transmission over the local network.
If nothing helps, you can reset the network settings on your TV. In the menu LG go to Settings → Network → Advanced Wi-Fi Settings and select the reset option. You'll then be prompted to re-enter your WiFi password.
Frequently Asked Questions (FAQ)
Is it possible to play games on TV via WiFi?
Technically, this is possible, but the experience will depend on input lag. For turn-based strategy or card games, the connection is fine. For shooters and racing games, the 100-200 ms latency typical of WiFi will make gaming uncomfortable. An HDMI cable is recommended for gaming.
Why isn't my LG TV showing up in the list of wireless displays?
Make sure the signal receiving app (Screen Share / Miracast) is running on your TV. Also, make sure both devices are on the same subnet (not the router's guest network). Updating the WiFi adapter drivers on your PC can sometimes help.
Is sound transmitted to the TV when connected?
Yes, when using Miracast or third-party apps, audio is transmitted along with video. In DLNA mode, you choose what plays. If there's no sound, check your playback device settings in Windows by clicking the speaker icon in the system tray.
Does connecting a TV affect internet speed?
Local data transfer (images from your PC to your TV) occurs within your network and doesn't consume your internet provider's bandwidth. However, it does consume WiFi bandwidth, so internet speeds on other devices may temporarily decrease due to airtime congestion.