Modern multimedia capabilities Wireless TVs allow you to transform a regular TV into the center of a home entertainment system, and the DEXP brand is no exception. Users often wonder how to display their computer's image on a large screen without tangled HDMI cables that often get caught underfoot or are simply too short. A wireless connection solves this problem, ensuring a clean interior and freedom of movement throughout the room.
In this article, we'll take a detailed look at all available methods for synchronizing devices using standard data transfer protocols. You won't need any special adapters or complex technical knowledge if you follow the steps carefully. We'll cover both built-in Windows features and specific apps. Smart TV.
Before beginning any manipulations, make sure both devices are turned on and functioning properly. This is a basic requirement that is often overlooked when trying to find settings in the menu. If the equipment is in good working order, the process will only take a few minutes.
Preparing equipment and network
The foundation of successful wireless streaming is a stable local network. Both devices—your laptop and the DEXP TV—must be connected to the same access point. Wi-Fi routerThis is a critical point: if a computer is distributing internet via a mobile phone, and the TV is connected to a home router, they will not "see" each other on the network.
Check the signal quality where the TV is installed. High-definition video streaming (Full HD or 4K) requires a stable connection speed. A weak signal will result in constant buffering, audio lag, and image artifacts.
⚠️ Note: Using guest networks in routers often isolates devices from each other for security reasons. If you can't find your TV in the list of available devices, check whether you're on an isolated network segment.
It's also worth updating your TV's software to the latest version. DEXP manufacturers periodically release patches that improve compatibility with new standards. Miracast And DLNAOld firmware may not support modern codecs or encryption protocols used by Windows 10 or 11.
Using the built-in Projection feature in Windows
The easiest and fastest way, without requiring any third-party software, is Miracast, a technology built into the operating system. In Windows 10 and 11, this module is enabled by default. To start casting, you don't need to search through complicated settings in the TV menu; simply use the system quick access bar.
Press the key combination Win + K on your laptop keyboard. The "Connect" sidebar will appear on the right. The system will automatically search for available wireless displays within range. If the DEXP TV supports wireless reception, its name will appear in the list within a few seconds.
After selecting a device, a connection confirmation message may appear on the TV screen. Use the remote control to press "Allow" or "Accept." The desktop image will instantly appear on the big screen. You can change the operating mode through the menu. Projection:
- 🖥️ PC screen only — the image remains on the laptop, the TV goes out (used to stop the broadcast).
- 🔄 Recurring — the image on both screens is the same, ideal for presentations or photos.
- 📺 Expand — the TV becomes a second monitor, you can drag program windows onto it.
- 📺 Second screen only — the laptop screen goes dark, only the TV works, which saves battery life.
☑️ Check before connection
It's worth noting that transmission quality depends on the strength of your laptop's wireless module. If you're using an older 802.11n Wi-Fi adapter, latency may be noticeable when moving the mouse. More modern standards ac And ax provide virtually instant response.
Setting up DLNA and streaming media files
If your goal is not to duplicate your desktop, but to view movies, photos or listen to music stored on your hard drive, it is better to use the protocol DLNA. This method is less demanding on processor resources and does not create a system load in the form of a mouse cursor or system notifications on the TV screen.
In Windows, open "Media Streaming Settings." You can do this through Control Panel or search. Make sure the feature is enabled and your DEXP TV is listed as "Allowed." If a device is marked as blocked, click on it and change its access settings.
After setting up folder access (usually "Videos," "Music," or "Pictures"), you can simply right-click any file on your computer, select "Cast to Device," and select your TV. The file will open on the big screen using the built-in player.
Why does video lag when using DLNA?
Lag is often caused by the file format. Heavy codecs like HEVC (H.265) may not be supported by the TV's built-in decoder. In this case, the TV attempts to decode the stream software, which causes stuttering. The solution is to use a third-party player on your PC with a rendering function or convert the file.
For more advanced management of your media library, it is recommended to use specialized software, for example, DLNA Server or a built-in media server. It allows you to create libraries, add movie covers, and sort content by genre, making it much more convenient than the standard Windows Explorer.
DEXP Smart TV Apps and Alternatives
Some DEXP TV models run Android TV or have their own operating system with app support. In these cases, functionality can be expanded by installing specialized receiver apps. These often offer more stability than standard protocols and offer more customization options.
One of the popular solutions is the application AirScreen or similar services available in the Google Play store on your TV. They emulate AirPlay (for Apple devices) and Cast (for Chrome) signal reception, making your TV visible to more devices. This is especially useful if the standard Windows search doesn't detect your TV.
You can also use the Google Chrome browser on your laptop. Open the menu (the three dots in the corner) and select "Cast." In the window that opens, you'll see not only your browser tabs but also the "Cast Screen" option. This is a universal method that works on almost any model. Smart TV with Chromecast built-in support.
| Method | Best use | Latency | Sound |
|---|---|---|---|
| Miracast (Win+K) | Presentations, games, work | Low / Medium | It is transmitted |
| DLNA | Watching movies, photos | Absent | It is transmitted |
| Google Cast | Web content, YouTube | Low | It is transmitted |
| Third-party apps | Specific tasks | Depends on the app | Often without sound |
⚠️ Please note: DEXP TV operating system interfaces may vary depending on the model year. The location of app stores or menu items may be changed by the manufacturer in new firmware updates.
Solving common connection problems
Even with the correct settings, situations may arise where devices fail to connect. One of the most common causes is antivirus software or Windows Firewall blocking incoming connections for device discovery. Try temporarily disabling network protection or adding an exception rule for the discovery service.
Another issue is outdated wireless adapter drivers. Go to Device Manager, find your Wi-Fi module, and check for updates. Sometimes, resetting your network settings via the command prompt with administrator privileges helps.
netsh winsock resetnetsh int ip reset
ipconfig /flushdns
Running these commands will flush the DNS cache and reset protocol stacks, which often resolves issues with device visibility on the local network. After completing these commands, you should restart your laptop.
It's also worth checking your Wi-Fi adapter's power-saving settings. In the device properties in Task Manager, uncheck "Allow the computer to turn off this device to save power." This will prevent connection drops when the device is idle.
Optimizing image and sound quality
Once the connection is successful, it is important to configure the image output for maximum comfort. In the display settings (Settings → System → Display) Check the resolution. It should match the native resolution of your DEXP TV's matrix, which is usually 1920×1080 or 3840×2160.
Pay attention to the screen refresh rate. For dynamic content and games, it is recommended to set the value 60 Hz or higher, if your Wi-Fi bandwidth allows. At lower frequencies, cursor movement may appear jerky.
Regarding audio, when transmitting via Miracast or Cast, audio automatically switches to the TV. However, if you're using older methods or specific software, the audio may remain on the PC. Always check the active playback device in the volume mixer.
Why is the picture not full screen?
If the image is cut off at the edges or has black borders, the issue is with the aspect ratio settings. On your DEXP TV remote, locate the "Aspect," "Format," or "P.Size" button. Select "Just Scan," "Screen Fit," or "16:9" mode to ensure the image fills the display without distortion.
Can you play games over Wi-Fi?
Technically, it's possible, but input lag will be critical for shooters and fast-paced games. A wireless connection doesn't provide the same response speed as an HDMI cable. While this is acceptable for strategy or card games, a wired connection is better for action games.
My DEXP TV isn't visible in the list of devices. What should I do?
Check that Screen Mirroring or Wireless Display is enabled in your TV's network settings. On some DEXP models, you may need to manually launch the "Wireless Display" app from the home screen for the TV to enter connection standby mode.