Yes. You can use an LG TV as an additional display for a Windows PC or Mac, most directly by connecting the computer to the TV with HDMI. On Windows, choose Extend to make the TV a separate part of your desktop; choose Duplicate to show the same image on both screens. Wireless sharing is also possible on supported device combinations, but it should not be assumed to provide an extended desktop.
Choose how you want to connect
| Option | What it does | What to check |
|---|---|---|
| HDMI | Connects the computer directly to an HDMI input on the TV. Windows can extend or duplicate the desktop. | The computer must have an HDMI video output, or a compatible adapter connected to a video-capable port. Confirm that the cable or adapter supports the picture mode you want. |
| Wireless screen sharing | Sends the computer’s screen to the TV without an HDMI cable, if both devices support the required feature. | Compatibility and steps vary by TV, computer, and operating system. LG’s Mac instructions require both devices to be on the same Wi-Fi network; Windows support depends on the PC and TV. |
HDMI is generally the more straightforward choice for a separate desktop display. LG describes its wireless option as screen sharing or mirroring; unless your specific devices are confirmed to support wireless extended-desktop mode, treat it as showing the same screen rather than adding a separate workspace.
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Connect an LG TV by HDMI
- Check the computer’s video output. Connect an HDMI output on the computer to an HDMI input on the TV. If the computer has no HDMI port, use an adapter compatible with its video-capable output. A port or adapter that does not carry video will not work as a display connection.
- Select the TV input. On the LG TV, open External Input or Home Hub and select the HDMI port you used. The exact menu name varies by model.
- Choose the desktop behavior. In Windows, press Windows+P and select Extend for a separate desktop area or Duplicate to mirror the computer screen. On a Mac, follow the display prompt and arrange screens in macOS; the available steps depend on the macOS version.
- Set a supported resolution. In the computer’s display settings, select the TV and choose its recommended resolution. Check the manual for the exact TV model for supported resolutions and refresh rates rather than assuming all LG TVs accept the same modes.
- Choose audio output if needed. If you want sound from the TV, select the LG TV as the computer’s playback device. Some cables or adapters, including certain DVI-to-HDMI adapters, may not transmit audio.
Use wireless screen sharing when supported
LG provides wireless sharing instructions for Windows and Mac, but the feature depends on the capabilities of both devices. For the Mac method in LG’s guide, open Control Center → Screen Mirroring, select the TV, and enter a code if one appears on the TV. The Mac and TV should be connected to the same Wi-Fi network. Windows steps depend on whether the PC supports wireless display and on the TV model.
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Wireless performance depends on the network environment. LG advises checking for nearby Wi-Fi interference, trying the 5 GHz band, and keeping the router, computer, and TV close together if the picture stutters. These steps may help, but they do not guarantee a particular level of responsiveness.
#1 Best Overall
- 【1080P 60FPS Video Capture Card】 This HDMI game capture card is based on USB3.0 high speed transmission port, input resolution up to 4K@30HZ, output resolution up to 2K@30Hz or 1920×1080@60Hz. Type c and USB interface can meet most of the devices in daily life. Easily meet the online capture, real-time recording, online meetings, live gaming and other functions, so you have a better visual enjoyment. Note: For capture use only; requires capture software to function and is not intended for direct screen casting to a monitor or TV
- 【Ultra Low Latency Screen Sharing】 HDMI capture card is made of good quality aluminum alloy with strong heat dissipation, allowing you to enjoy ultra low latency while live gaming or video recording or live streaming, avoiding blue screens and lag. This HDMI to USBC capture card supports easy recording of good quality audio or HD video and transferring it to your computer or streaming platform, allowing you to record 60 fps HD video directly on your hard drive and real-time preview
- 【Plug and Play, Easy to Carry】 This HDMI 1080P video capture card does not require any additional drivers or external power supply, just plug and play for fast capture. The capture card is small and lightweight, so you can put it in your bag for emergencies, making it very portable for outdoor live streaming. It's also a great way to share content in game recording, video conference, video recorder and online teaching
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- 【Package Content & Note】 1x HD Audio Capture Card , 1x USB 3.0 to USB C Adapter (A-side 3.0, B-side 2.0), 1x user manual. Please note that you need to restart the OBS Studio software after the audio setup is complete, otherwise it will result in no sound output. When using an adapter, if the device is recognized as USB 2.0, try using the other side with the USB-C port. Simply flip the capture card and reconnect it to be recognized as USB 3.0
Make the picture fit and stay stable
If the TV reports “Unsupported Mode”
Set the computer to a resolution supported by the TV, starting with the recommended resolution in the computer’s display settings. LG also identifies graphics-driver problems as a possible factor. The supported modes are model-specific: LG Support lists 1920 × 1080 at 60 Hz for the product covered by one support document, but that example is not a specification for every LG TV.
If the image is cropped, enlarged, or cut off
First select the TV’s recommended PC resolution. On certain LG products released in 2018 or earlier, LG’s guidance says changing the HDMI input label to PC may also be relevant. Some newer models have picture-size or Just Scan controls; use the model’s menu guide to find the applicable setting.
Rank #2
- 【1080P HD High Quality】Capture resolution up to 1080p for video source and it is ideal for all HDMI devices such as PS4, PS3, Xbox One, Xbox 360, Wii U, DVDs, DSLR, Camera, Security Camera and set top box. Note: Video input supports 4K30/60Hz and 1080p120/144Hz. Does not support 4K120Hz/144Hz. Output supports up to 2K30Hz.
- 【Plug and Play】No driver or external power supply required, true PnP. Once plugged in, the device is identified automatically as a webcam. Detect input and adjust output automatically. Won't occupy CPU, optional audio capture. No freeze with correct setting.
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- 【HDMI LOOP-OUT】Based on the high-speed USB 3.0 technology, it can capture one single channel HD HDMI video signal. There is no delay when you are playing game live.
- 【Support Mic-in for Commentary】Rybozen capture card has microphone input and you can use it to add external commentary when playing a game. Please note: it only accepts 3.5mm TRS standard microphone headset.
If the picture jitters or the connection is unstable
Check the selected resolution, the external-input configuration, and the cable’s condition. LG recommends an authentic HDMI cable for PC picture troubleshooting. A cable or adapter that cannot handle the connection correctly can cause video problems.
If there is no sound from the TV
Confirm that the cable and adapter carry audio, then choose the LG TV as the computer’s playback output. The picture can work even when an adapter does not pass audio.
Rank #3
- 【4K HDMI Input, 2K@30Hz Recording】Powered by a true USB 3.0 high-speed interface, the capture card supports up to 4K@30Hz HDMI input and records at 2K@30Hz or 1080P@60Hz. Perfect for gamers, streamers, and professionals who need crisp, smooth video for live streaming, gameplay recording, or online meetings.
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- 【What You Get】Includes: HDMI Capture Card, USB 3.0 to USB-C Adapter, User Manual. Tips: Make sure your tablet’s OTG function is enabled before connecting. Test your HDMI device with a monitor first to confirm video and audio output, then connect to the Video Capture Card for recording.
Check whether your particular TV is suitable for desktop work
An LG TV can function as a second display, but that does not make every model equivalent to a computer monitor. The useful resolution, refresh rate, available picture settings, and how comfortable text looks at your viewing distance depend on the exact TV and computer. LG’s general instructions note that menus vary by model, and its supported-mode documentation applies to the product named in that document.
- Look up the TV’s supported PC resolutions and refresh rates in its manual.
- Check that the computer’s output and any adapter support the same target mode.
- Consider whether the TV’s text rendering and viewing distance suit the work you plan to do.
- Confirm that your preferred connection supports audio if you want sound from the TV.
LG USA Support’s guide, How to Display Your PC Screen on Your LG TV (Wired or Wireless), describes HDMI as a wired option and wireless screen sharing for supported Windows PCs and Macs. Its troubleshooting guidance, LG TV – Troubleshooting Poor Video Quality When Connected to a PC, warns that an incorrect resolution can cause a cut-off or enlarged picture. Because the title does not identify a TV or computer model, exact compatibility and menu instructions must be checked for your devices.
Quick Recap
Best Value
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Rank #4
- 2K 30FPS & 1080p 60FPS HDMI Capture Card: The 4K@30Hz input and 2K@30Hz output resolutions offer dual benefits. The high input resolution preserves original video quality for post-production editing, while the 2K output provides an optimal balance between clarity and compatibility. At the same time, this HDMI to USB-C capture card is also backward compatible with 1080p 60FPS, to fulfill a variety of daily needs. Note: Ensure your HDMI source device and the capture device support 2K resolution
- Low Latency 5 Gbps High Data Transfer Speed: With high-speed USB 3.0 technology for optimal performance and low delay, you can easily stream video from the Switch/Switch 2/PS4/PS5 to Twitch, YouTube, Facebook, Twitter, OBS, Potplayer, and VLC on a computer. It's also backward compatible with USB 2.0. Note: This capture card for streaming only supports HDMI input sources, as well as iPadOS devices need to be updated to 17 or higher to use it
- USB A and USB C ports: Featuring both USB-A and USB-C interfaces, this streaming capture card ensures broad compatibility with modern devices, including smartphones, laptops, tablets, desktops, and Quest 3. Perfect for multi-scenario streaming—whether you're broadcasting camera footage, mobile gaming, or PC live streams. Note: This capture card only supports unidirectional signal flow—HDMI input to USB output
- Universal Compatibility: This Driver-Free HDMI capture card for streaming supports Windows 11/10/8.1/7, MacOS, Linux, and phones/tablets. This capture card effortlessly livestreams gameplay from Switch, Switch 2, PS4/PS4 Pro/PS5 (Disable HDCP mode), Xbox Series X, and Meta Quest 3/2 directly to your iPad, laptop, or PC. Fully support OBS Studio, XSplit, PotPlayer, QuickTime Player, and more for streaming, recording, editing, and high-res video transfer. Note: iPadOS 17 or later is required for USB-C iPad compatibility. Switch / Xbox / PS5/ PS4 work fine when HDCP is turned off
- Durable USB Capture Card: The aluminum alloy casing easily dissipates heat and is lightweight while effectively shielding against EMI, ensuring stable signal transmission. The built-in cable features 26AWG (2C) + 30AWG (1P) tinned copper conductors, ensuring excellent conductivity and corrosion resistance, enhancing durability, and reducing signal loss
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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