FPD-Link

Flat Panel Display Link (FPD-Link) is a high-speed interface connecting the output of a video controller in a laptop computer, computer monitor or LCD television set to the display panel. Most laptops, LCD computer monitors and LCD TVs use this interface internally. (Laptops produced before around 1995 and some devices with much lower display resolutions use a TTL or CMOS voltage interfaces instead.)

FPD-Link uses LVDS. It uses one twisted pair in order to transmit a clock signal, and on the remaining wire pairs it transmits video data at a bit rate that is seven times the frequency of the clock signal.

Other systems

There is another display interface which uses LVDS: OpenLDI. It is based on FPD-Link, but allows longer cable lengths, and is a rarely used method to connect external display panels to computers. Modern stand-alone LCD display panels for desktop computers use a completely different interface such as DVI.

External links

• An Introduction to FPD Link
• LVDS Display Interface (LDI) TFT Data Mapping for Interoperability with FPD-Link
• LVDS based FPD-Link spans industries with gigabits @ miliwatts – detailed description of the interface