Modern televisions based on Android TV have turned into powerful multimedia centers capable of not only playing streaming content, but also working in tandem with a personal computer. Users are often faced with the need to display a presentation, home photo album or movie from their hard drive on the big screen without using flash drives. There are several effective methods that allow you to implement this task both over a wireless network and through physical interfaces.
The choice of a specific method depends on your goals: do you need a complete copy of the desktop with the ability to control the cursor, or is it enough to simply broadcast a video file from the browser. In this article, we will analyze in detail the main data transfer protocols, such as Miracast and Google Cast, and also consider the nuances of setting up a local network for comfortable use of multimedia.
Before you start setting up, make sure that your Smart TV and computer are connected to the same access point Wi-Fi. This is critical to the operation of most wireless technologies. If you plan to use a cable connection, check for a free port HDMI on the back of the TV.
Wireless broadcasting through the built-in functionality of Windows
Operating system Windows 10 and Windows 11 has built-in support wireless display standard. This function allows you to duplicate the screen without installing third-party software, using technology Miracast. First, make sure that the wireless signal reception function is turned on on the TV, which is often called Screen Mirroring or Wireless monitor in the signal sources menu.
On the computer, press the key combination Win + K. The “Connection” panel will appear on the right, where the system will begin searching for available devices within the network range. Select your TV from the list. Once the connection is established, the image from the PC monitor will appear on the TV screen with minimal delay.
It is worth considering that the quality of the transmission directly depends on the power of your Wi-Fi router and the distance to it. When using the range 2.4 GHz stuttering is possible when playing dynamic scenes. For stable operation, it is recommended to use a network 5 GHzwhich provides higher channel capacity.
- 📡 Band 5 GHz provides a stable picture without compression artifacts.
- 🖥️ The “Extend” mode allows you to use the TV as a second monitor for work tasks.
- 🔋 On some laptops, active broadcasting can quickly drain the battery.
- 🎮 Games with low input latency are best run over a wired connection.
⚠️ Attention: If your TV does not appear in the list of available devices, check your Windows Firewall settings. Sometimes the system firewall blocks incoming requests to discover devices on a private network.
Using Google Chromecast technology
Since Android TV is based on the Google ecosystem, native protocol support Chromecast is huge advantage. Unlike Miracast, which duplicates the entire desktop, Chromecast allows you to send content from specific applications or browser tabs directly to the TV, freeing up computer resources.
For this method to work, you will need a browser Google Chrome on your PC. Open your browser, click on the three dots in the upper right corner and select Broadcast.... The system will prompt you to select a source: you can broadcast only the current tab, the entire desktop, or a specific audio file.
After selecting a device in the list, your content will start playing on the TV. An important feature is that when broadcasting a browser tab, the video is processed on the PC side and transmitted as a stream, while with the support of a service (for example, YouTube), the TV itself downloads the stream from the Internet at the command of the computer.
To reduce the load on the processor when broadcasting heavy tabs, close unnecessary browser extensions that can consume RAM.
If you want to stream files from your hard drive that are not open in a browser, you can use the “Cast Desktop” function. However, in this case, the picture quality may be lower than with a direct cable connection, due to real-time compression of the video stream.
Connecting via an HDMI cable and setting up HDMI-CEC
The most reliable way to get the highest quality image without delays is to use a physical connection. The cable HDMI transmits an uncompressed digital signal, supporting resolutions up to 4K and high refresh rates. This is an ideal option for gamers or watching movies at high bitrates.
Connect one end of the cable to the computer's video card, and the other to the port HDMI IN on the TV. Switch the signal source to TV using the remote control. Modern TVs support technology HDMI-CECthat allows you to control connected devices with one remote control.
To activate PC control from the TV remote control, go to the Android TV system settings. Find the section Device Settings → Inputs → HDMI-CEC Control and enable it. You may also need to install drivers on your computer to emulate input if you plan to use TV as the main interface.
| Parameter | HDMI 1.4 | HDMI 2.0 | HDMI 2.1 |
|---|---|---|---|
| Max. resolution | 4K @ 30 Hz | 4K @ 60 Hz | 8K @ 60 Hz |
| Bandwidth | 10.2 Gbit/s | 18 Gbit/s | 48 Gbit/s |
| HDR support | Basic | Full | Dynamic |
| Game Mode (VRR) | No | Limited | Yes |
HDMI cable version 2.0 or higher is required to transmit 4K images at 60 frames per second without loss of quality colors.
When using long cables (more than 3 meters), make sure that they have high-quality shielding. Cheap cables may not be able to transmit a high-resolution signal, which will lead to screen flickering or a complete absence of image (“black screen”).
Broadcasting media files over a local network (DLNA/SMB)
If your goal is to watch movies or photos stored on your PC’s hard drive, there is no need to duplicate the entire screen. Protocols DLNA i SMB allow the TV to directly access computer folders as network resources. This reduces the load on the processor and ensures the best quality video decoding on the TV.
To configure, open Windows “Settings”, go to the section Applications → Additional components and install “Streaming Media Component”. After enabling this feature, Windows will automatically create a media server available to devices on the local network.
On the TV, launch the application Media Player or any file manager with network support (for example, VLC or MX Player). You will see your computer's name in the list of sources. By going to it, you will have access to shared folders with videos and music.
⚠️ Attention: For the network profile to work correctly in Windows, make sure that your network is defined as “Private” and not “Public”. In the public profile, device detection is disabled by default for security reasons.
What to do if the TV does not see the folders?
Make sure that in the settings of the shared folder on the PC in the "Access" section, read is allowed for the "Everyone" group. Also check if your antivirus is blocking network detection.
The advantage of this method is the ability to pause the movie on the TV, turn off the computer, and then continue watching from another device on the same network if the media server is running elsewhere. However, for it to work, the PC must be turned on and not go into sleep mode while watching.
Third-party applications for advanced features
Standard operating system tools are sometimes limited in functionality. Third-party applications, such as AirScreen, LetsView or ApowerMirroroffer more flexible settings. They allow you not only to duplicate the screen, but also to transmit sound from the PC to the TV speakers separately from the video stream, which is difficult to implement using standard Windows tools.
Install the selected application from the store Google Play on your TV and the corresponding client on your computer. Most of these apps work on the principle of creating a virtual display adapter. Some of them support controlling the computer from the TV remote, turning the TV into a giant touch screen (if supported).
Many users choose these solutions for gaming, as they often have a “Game Mode” that optimizes frame buffering. However, it is worth remembering that free versions of such applications may contain advertising or have a session time limit.
- 🚀 LetsView is completely free and does not add watermarks to the image.
- 🎨 AirScreen emulates AirPlay reception, which is convenient for owners of Apple equipment next to Android TV.
- ⌨️ Some applications allow you to use a PC keyboard to enter text on TV.
- 📹 Screen recording is possible directly through the interface of third-party software.
☑️ Check before installing software
Solving problems with latency and signal quality
Even with proper configuration, users may experience desynchronization of audio and video or "squares" in the image. Most often, the problem lies in an overloaded Wi-Fi channel. If your neighbors have dozens of routers operating on the same frequency, the airwaves become clogged and data packets are lost.
Try to manually change the broadcast channel in your router settings. Use Wi-Fi analyzer apps on your smartphone to find the least congested channel. Also make sure that there are no thick concrete walls or metal structures between the router and the TV that shield the signal.
If you use a wireless connection for games, input lag can be critical. In this case, the only way out is to switch to cable HDMI or use technology Wi-Fi 6if your equipment supports this new low-latency communication standard.
⚠️ Attention: Smart TV interfaces and versions of Android operating systems are regularly updated. The menu location and item names may differ from those described in the instructions depending on your TV model and firmware version.
Frequently asked questions (FAQ)
Why is there no sound on the TV during broadcasting?
Check the audio output device on Windows. Click on the speaker icon in the tray, expand the list and select your TV or device marked “NVIDIA High Definition Audio” / “Intel Display Audio” if the sound is via HDMI.
Is it possible to play games on a PC through a TV without lag?
For a comfortable game, the latency should be minimal. Wireless methods (Miracast, Chromecast) usually give a delay of 50-150 ms, which is noticeable. For dynamic shooters and racing games, it is highly recommended to use an HDMI cable.
The TV sees the computer, but does not connect to it.
Try restarting both devices. Make sure that VPN services are disabled on your computer, which can create virtual adapters and confuse the system when choosing a network interface for broadcasting.
How to transfer photos from your phone to Android TV via PC?
The easiest way is to upload the photo to cloud storage (Google Photos) from your phone, and then open the Google Photos application on your TV. A PC in this chain is not required, but can serve as a media server for local files.