Fpga-based Lcd Controller Design And Realization

Due to the rapid development of information technology, especially the development of computer, and information explosion, people now get most of the visual information from various electronic equipments, and people demand high and high quality for these display equipment, as a result of these, technology of display make a great development, not only in the LCD itself, but also in the driving and controlling system of LCD. The LCD controller designed with FPGA/CPLD has high flexibility, it can be easily modified according to the type and size of LCD, and we can fulfill the demand of system in low cost, and we can overcome some shortage of universal LCD controller through special designing.This text describe a LCD controller designing with FPGA, it mainly include the following topic: the hardware designing of LCD controller with FPGA and the control panel of plastic injection machine which was designed with this LCD controller;The designing of LCD controller with HDL and EDA, How to design the interface part to supply a convenient interface to the CPU, the designing of pulse signal generator, the time-based dithering algorithm and FRC (Frame Rate Control) method, the algorithm of transform the form of display data and buffering the data, the designing of SDRAM controller and how to manager the display buffer with this SDRAM controller, and how to synchronize the signal between different parts;In the last part of the text, it describe the designing of a plastic injector machine with this LCD controller.Finally, the designing of plastic injection man-machine interface with this LCD controller show that it is quite a good measure.