Graphics LCD display With FPGA

Graphics LCD display With FPGA

This Genius Devil (Alex) received a junked old Hitachi screen from his buddy and decided to see if he could get it up and running. The screen is one of those older monochrome, low-resolution (256 x 128) green LCDs and is missing a controller chip. On the back of the display there are eight Hitachi LCD drivers, six column shifters and two row shifters. With no controller chip, the screen could not be driven in a static mode where you could just write image data to the internal memory. Instead, Alex had to figure out a way to use the LCD more like a VGA display where you must constantly send it data to refresh the picture.

You can see this link to see all of his technical detail and FPGA VHDL programming.

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