http://metku.net/index.html?path=mods/transtft/index_eng

Using a laptop LCD with a VGA connector

VESA feature pinout

Since my circuit only delivers 1 bit resolution for each primary I have connected the 3 data bits for each color together. The HSYNC and VSYNC are connected directly from the VGA cable to the LCD, while the color signals are buffered and "digitized" (amplified) by 74HC04 inverters. The clock input is fed from a 25.175MHz crystal oscillator I snagged from a (very) old VGA card, and the ENAB line (used to center the display) is simply grounded for now.

An improved version of this circuit with at least 2 bits of resolution per primary color, and a properly centered image, will appear here at some point in the future. For now, here is the schematic and a couple of images to prove that it works…

in

http://old.area26.no-ip.org/?section=hard&project=vgalcd
http://area26.no-ip.org/