A closer look at the back of the VLSystem L.I.S POP LCD Indicator reveals that this product is not your typical serial LCD display. The product is a HD44780 compatible parallel display, which is connected directly to a PCB controller board. The controller board is a separate circuit with an onboard PIC processor which converts the character display signals from parallel to serial. The controller board is attached to the main LCD display via 16-pins and is supported by a series of metal standoffs.



Link: MTB