Introduction and advantages of EDP signal interface
Date:2019-04-26
EDP and LVDS are video signal interfaces used to connect touch screen or monitor in industrial computer. In recent years, from the new LCD models of loadmap updated by Youda, there are more and more LCD models with more than 10.1 inch interface EDP.
Let's introduce the characteristics, advantages and disadvantages of EDP signal interface and EDP interface
EDP (embedded DisplayPort) is an internal digital interface based on DisplayPort architecture and protocol. It can use simpler connectors and fewer pins to transmit high-resolution signals, and can realize multiple data transmission at the same time, so the transmission rate is much higher than LVDS. It is suitable for tablet computers, laptops, all-in-one computers and future large screen high-resolution mobile phones.
EDP is a kind of communication interface of computer display screen. The resolution of computer with EDP display interface is higher than that of LVDS interface. Generally, this kind of communication interface is used for high-definition screen, which can realize the function of "wide viewing angle".
EDP and LVDS are video signal interfaces used to connect touch screen or monitor in industrial computer. LVDS interface uses very low voltage swing (about 350mV) to transmit data on two PCBs or a pair of balanced cables through differential, that is, low voltage differential signal transmission. It is a digital video signal transmission mode developed to overcome the disadvantages of high power consumption and EMI when transmitting broadband high bit rate data by TTL level. The LVDS output interface is used in the industrial computer, which can make the signal transmit at the rate of several hundred Mbit / s on the differential PCB line or balanced cable. Because of the low voltage and low current drive mode, the low noise and low power consumption are realized.
EDP interface features:
1. Micro packet structure can realize the simultaneous transmission of multiple data.
2. Without LVDS conversion circuit, the circuit is simple.
3. Small EMI (electromagnetic interference) and powerful copyright protection function.
Taking the LCD screen with 1920x1200 and 24bit resolution as an example, if LVDS interface is adopted, 20 pairs of data transmission lines are needed; If EDP interface is used,
