คู่มือปี 2026: วิธีสะท้อนหน้าจอคอมพิวเตอร์ไปยังทีวี
In 2026, we expect our devices to talk to each other instantly. However, when you try to screen mirror PC to TV, you might still find yourself staring at a “Connecting…” wheel or dealing with a mouse cursor that moves a second late. Whether you are presenting in a boardroom or sharing photos in your living room, achieving a stable connection is the primary goal.
1. What Exactly is Screen Mirroring?
Unlike “casting”—which only sends a specific video file—mirroring lets you see everything, including professional apps like Figma, your taskbars, and system notifications exactly as they appear on your PC.
2. Four Best Ways to Connect
Method A: Wired Connection (HDMI) – Maximum Stability
For high-speed, low-latency gaming or 4K streaming, a physical cable remains the most reliable method.
• เชื่อมต่อ: Plug one end of an HDMI cable into your PC and the other into your TV. If your laptop only has USB-C, you will need a USB-C to HDMI adapter.
• Input: Select the corresponding HDMI input source on your TV.
• Configure: Press Windows Key + P to choose ซ้ำซ้อน, ขยายหรือ Second Screen Only.
Method B: Windows Native Wireless (Miracast)
Most modern Windows 10/11 PCs support the Miracast protocol for a cable-free setup.
• The Shortcut: Press Windows Key + K on your PC to open the “Connect” menu.
• Select TV: Choose your TV from the list of available wireless displays.
• The Struggle: This method is hardware-dependent; if your PC and TV chips don’t match perfectly, the connection may lag or fail.
Method C: Browser-Based Casting (Google Cast)
Ideal for mirroring specific browser content or your entire desktop via Google Chrome.
- Cast Menu: In Chrome, click the three-dot menu and select Cast….
- Source: In the dropdown menu, select “Cast screen” หรือ “Cast desktop”.
Method D: Third-Party Apps (The “Smart” 2026 Solution)
When native tools fall short due to brand incompatibility, dedicated apps like 1001 TVs bridge the gap between different hardware ecosystems.
- Universal Compatibility: These apps allow a Windows PC to connect to almost any smart TV brand (Samsung, LG, Sony, Roku, etc.).
- The “Web Mirror” Trick: A life-saver for hotels or offices where you cannot install apps on the TV. Simply open the TV’s web browser and mirror your screen to a URL provided by the PC app.
- Professional Management: For organizations, solutions like Ditto offer centralized management and security features that native protocols lack.
3. Troubleshooting Common Pain Points
• “Device Not Found”: Confirm both devices are on the exact same Wi-Fi network. If they still won’t link, ensure your mirroring app is allowed through your Windows Firewall.
• Lag and Stuttering: For a smooth experience, use ไวไฟ 5GHz instead of 2.4GHz. Also, check your TV settings for a “Game Mode” to reduce internal image processing time.
• No Audio on TV: Check your PC’s sound settings to ensure the output is set to the TV or the mirroring app’s virtual audio driver rather than your laptop speakers.
4. Screen Mirroring PC to TV FAQ
Q: How can I mirror my computer to my TV without HDMI?
You can use a dedicated wireless app like 1001 TVs or built-in protocols like Miracast and Chromecast. Wireless mirroring is the best way to stay mobile while using the big screen.
Q: Can I mirror my PC to my TV if they are different brands?
Yes, using an app like 1001 TVs allows a Windows PC to connect to almost any smart TV brand, regardless of the manufacturer’s ecosystem.
Final: While built-in tools are a great starting point, they often lack the flexibility needed for modern homes.
If you are looking for a stable, “it just works” experience in 2026, a dedicated solution like 1001 TVs is the most reliable way to bridge the gap.
