I have pulled a 240x320 LCD screen out of a Nokia 6500s, and am interested in interfacing with it. Some people have worked with it, including posting PIC source code and schematics for the board they build to interface with it. The board-to-board connector is 24-pin 0.4 mm pitch, and apparently the driver also wants < 1.95 V logic, so I have essentially copied the schematic at http://gobotronics.wordpress.com/2010/09/12/time-to-post-some-details/ and have digested details at http://translate.google.com/translate?js=n&prev=_t&hl=en&ie=UTF-8&layout=2&eotf=1&sl=auto&tl=en&u=http%3A%2F%2Fwww.elektroda.pl%2Frtvforum%2Fviewtopic.php%3Ft%3D1344700%26sid%3De2fac4ea42d6c7df3d88a62263350eea&act=url. My schematic is below. IC1 and IC2 are 74LVC4245A logic level converters.
The schematics in the links above both link VLED1- to VLED2+ and supply 12 V across the lot. I would like my end result to be as standalone-friendly as possible, so have linked the two LED sets in parallel with 6 V across. Essentially, my questions are general ones about implementation and feasibility. I’m aware that I won’t be able to drive the display at a high frame rate with an ATmega328, I’m just interested in having it work at all.
Does anyone with more general experience have any comments or suggestions on how to go about this - do you think the approach that I’m taking (and have copied from others!) sounds reasonable?
[Aside: I posted a version of this question in the previous forum at http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1295188814/3, but didn’t really ask all the questions I wanted to ask.]