I reviewed the NEC 84PW041 inverter specs in more detail and it offers a fixed pot to control brightness or variable voltage interface (0 - 2.5V) for brightness control. The LVDS-07 interface card on the EPIA can't control the inverter, it can only route the 5V to power it. Thus I would be stuck with setting the pot to max and hope the ST-NLT tech works its magic. Nighttime viewing may be to bright...
A better, and more masochistic
, approach would be to spin a small photo-detector circuit. Brief searches yielded the following:
TSL254R: LIGHT-TO-VOLTAGE OPTICAL SENSOR
http://www.taosinc.com/images/produc...SL254R-e12.PDF
I should be able to connect this directly to the inverter, as the VOUT voltage is proportional to light intensity. Response times appear to be fast enough.
The sensor sensitivity would determine if we need only one or an array to determine if the brightness really needs modification (i.e. sun hitting top corner only). The transflective properties of the ST-NLT panel will control the brightness adjustment automatically, so perhaps only the day/night detection is required. I need to see it in action first...
For the near term, I really need to get the cable length measurements to Duayn so he can get started. I will get the LVDS-07 EPIA card and 84PW041 inverter by Tuesday, but won't be able to view the panel...
BTW, Duayn stated the IRTOUCH units make for a clean bezel, so I may be able to Dremel out the double-din area a bit for the 8.4" dimension, sand, and then paint, with no fiberglass work. That would be SWEET!
