What Are the Key Features of a 2-HDMI to LVDS TTL Interface AD Board
2026-09-17
When upgrading legacy industrial panels or building a custom display system, engineers often need a reliable bridge between modern HDMI sources and older LVDS or TTL screens. A 2-HDMI to LVDS TTL Interface AD Board from SKY-TDM solves exactly this problem, allowing two independent HDMI inputs to drive a single LVDS or TTL panel with stable, real-time performance. Understanding its core features helps integrators select the right hardware for medical, industrial, and embedded applications.
Primary Hardware Features
A well-designed 2-HDMI to LVDS TTL Interface AD Board combines signal conversion, switching, and display control in one compact PCB. SKY-TDM engineers these boards with the following characteristics:
-
Dual HDMI Inputs – Two independent HDMI 1.4 ports support 1080p at 60Hz, with automatic or manual source switching.
-
LVDS and TTL Output Flexibility – Selectable output modes support single-port and dual-port LVDS, as well as 24-bit TTL, covering panels from 7" to 32".
-
Scaler and De-interlacing Engine – Integrated scaling hardware converts non-native resolutions to match the panel's fixed timing.
-
On-Screen Display (OSD) Control – Adjust brightness, contrast, color temperature, and input selection through a physical keypad or IR remote.
-
Backlight Driver Support – Constant-current LED backlight output with PWM dimming, compatible with most industrial LCD panels.
-
Wide Input Voltage Range – Typically 9V to 24V DC, suitable for vehicle, kiosk, and factory automation environments.
Technical Specifications at a Glance
| Feature | Specification |
|---|---|
| HDMI Inputs | 2 × HDMI 1.4, up to 1920×1080 @ 60Hz |
| LVDS Output | Single/Dual port, 18/24-bit, up to 1920×1200 |
| TTL Output | 24-bit RGB, up to 1024×768 |
| OSD Language | English, Chinese, Japanese, German |
| Control Interface | Keypad, IR remote, UART (optional) |
| Power Supply | DC 9V–24V, 12W typical |
| Operating Temperature | -20°C to +70°C |
Why Integration Matters
The 2-HDMI to LVDS TTL Interface AD Board is not simply a passive adapter. SKY-TDM builds each unit with ESD protection, firmware upgrade support, and strict signal integrity testing. This ensures that dual HDMI sources—such as a PC and a media player—can be switched without display flicker, resolution mismatch, or color degradation. For OEM projects, SKY-TDM also offers custom firmware, connector placement, and panel timing presets.
Frequently Asked Questions
Q: Can a 2-HDMI to LVDS TTL Interface AD Board output to both LVDS and TTL screens at the same time?
A: No. The 2-HDMI to LVDS TTL Interface AD Board uses a single display pipeline, so it drives either an LVDS panel or a TTL panel, not both simultaneously. Output mode is selected through the OSD or firmware setting before connection.
Q: Does the 2-HDMI to LVDS TTL Interface AD Board support automatic HDMI switching?
A: Yes. The 2-HDMI to LVDS TTL Interface AD Board supports auto-sensing mode, which detects an active HDMI signal and switches to that input automatically. Manual override is also available via the keypad or IR remote for fixed-source installations.
Q: What panel resolutions are compatible with the 2-HDMI to LVDS TTL Interface AD Board?
A: The 2-HDMI to LVDS TTL Interface AD Board supports LVDS panels from 1024×600 up to 1920×1200, and TTL panels up to 1024×768. SKY-TDM provides a timing configuration file for non-standard resolutions, ensuring proper display without image stretching.
Conclusion
Choosing the right 2-HDMI to LVDS TTL Interface AD Board depends on panel type, resolution, input count, and environmental requirements. SKY-TDM delivers industrial-grade hardware with dual HDMI flexibility, robust OSD control, and long-term firmware support. For datasheets, sample requests, or customized configurations, contact us today and let SKY-TDM provide the display interface solution that fits your project.