LCD display interface type & history

- Mar 07, 2020-


The type of LCD display interface determines the quality of image transmission. Common interface types include VGA, DVI, HDMI, and so on. It is characterized by fast speed and high quality.


LCD display interface type


Common interfaces

VGA, DVI, HDMI, etc.



Determines the quality of image transmission



HDMI, D-sub interface, S / PDIF output


DVI interface

DVI-D interface, DVI-I interface



Fast speed and high quality




In April 2002, 7 companies including Hitachi, Panasonic, Philips, Silicon Image, Sony, Thomson, and Toshiba established the HDMI organization and began to develop a new standard for digital video / audio transmission. At the end of 2002, the High-definition Digital Multimedia Interface (HDMI 1.0) standard was promulgated. By the end of 2006, version 1.3 had been promulgated. The main change was to further increase the bandwidth to transmit higher resolution and color depth. HDMI is compatible with DVI on the pins, but uses a different package. Compared with DVI, HDMI can transmit digital audio signals, and adds support for HDCP, while providing better DDC optional functions. HDMI supports a data transmission rate of 5Gbps, and can transmit up to 15 meters, which is sufficient for a 1080p video and an 8-channel audio signal. And because a 1080p video and

Complete display interface behind ASUS MT276H

Complete display interface behind ASUS MT276H

An 8-channel audio signal requires less than 4GB / s, so HDMI has a lot of headroom. This allows it to connect the DVD player, receiver and PRR separately with a single cable. In addition, HDMI supports EDID and DDC2B, so HDMI-equipped devices have the feature of "plug and play". The signal source and display device will automatically "negotiate" and automatically select the most suitable video / audio format.


With the LCD screen becoming larger and the popularity of game consoles such as X-box, Wii, PS, people began to shift the entertainment equipment originally connected to the TV platform to the LCD monitor in order to pursue a higher-definition picture effect . In order to meet users' increasingly diverse entertainment needs, various LCD display manufacturers, such as ASUS, Samsung, and LG, have begun to configure more complete interfaces for displays. For example, the MT276H LCD display with a 27-inch huge screen has been equipped with audio input HDMI interface, -sub interface, component & component input, input, RCA R + L input, S / PDIF output and even 3.5mm headphone jack, and this combination is bound to become the standard configuration of future LCD displays.