The LVDS interface in the tft LCD interface is also a common communication interface. Its English name is LowVoltageDifferentialSignaling, which is a low-voltage differential signal technology interface. It is a digital video signal transmission method developed by the US NS company (National Semiconductor Corporation) to overcome the shortcomings of high power consumption and large EMI electromagnetic interference when transmitting broadband high bit rate data in TTL level mode.
The LVDS output interface in the LCD interface uses a very low voltage swing (about 350mV) to transmit data through two PCB traces or a pair of balanced cables through differential, that is, low-voltage differential signal transmission. The LVDS output interface enables signals to be transmitted on differential PCB lines or balanced cables at a rate of several hundred Mbit/s. Due to the low-voltage and low-current drive mode, low noise and low power consumption are realized. At present, the LVDS output interface has been widely used in 17in and above liquid crystal displays.