MP3Car.com - View Single Post - NEC 8.4" Transflective Solution

thermoptic · 09-16-2007, 01:49 PM

Quote: Originally Posted by changeip

nice - i am very interested in finding out what you find out : )

I received a follow-up "qualifier" e-mail from ERG. They wanted contact information and project details in order to route me to the appropriate sales representative, so hopefully not the "Trash" folder rep.

I stated that I am a member of a technical LCD/Display design forum, where we compare, upgrade, and tear down products. Informed them of optical stack work, water-cooled LED backlight projects, custom LVDS controllers,etc. I threw in competitor names and stated that we rank high in Google searches due to the rich, technical keyword content. GoogleBot already found this thread. Geez, it is all knowing...

I didn't provide the link to here, but I told them the Google hits would give them visibility beyond this forum and expand to Kiosk developers, etc. If their specs are not under NDA, hopefully they will bite. As turbocad6, stated, this will be a drop in replacement with probably no significant gain. I am hoping to get raw NIT values to compare against the stock NIT brightness of the NEC, which they may know as well. Perhaps I could spin a PCB express board with double the LED density in a rail strip, then leverage a higher powered driver. Ehh, do I really want to pursue this option, better to wait until I juice the current stock solution and evaluate its performance.

I briefly researched CCFL lighting. The NEC has two CCFL, but I was wondering if I could upgrade the bulb strength? Are all CCFL bulbs the same in terms of brightness? I imagine you could have higher quality phosphor coatings, and such.

Selecting CCFL Lamps
http://www.lcdparts.net/howto/selectccfl.aspx

CCFL Lamps
http://www.lcdparts.net/CCFL1.aspx

Maybe drive them a little hotter. The inverter driver may step-in once the voltage or current thresholds have been exceeded. spmclaugh, you mentioned rolling your own inverter. What needs are you addressing (i.e. better efficiency)? Can you comment on CCFL bulb quality?

And from the folks at ERG:

Selecting an LCD Backlight Driver
http://www.electronicproducts.com/Sh...g.jan2007.html

09-16-2007, 01:49 PM	#41
thermoptic Constant Bitrate thermoptic's CarPC Specs Join Date: Aug 2007 Vehicle: 1998 Honda Accord Posts: 116 My Photos: ()	Quote: Originally Posted by changeip nice - i am very interested in finding out what you find out : ) I received a follow-up "qualifier" e-mail from ERG. They wanted contact information and project details in order to route me to the appropriate sales representative, so hopefully not the "Trash" folder rep. I stated that I am a member of a technical LCD/Display design forum, where we compare, upgrade, and tear down products. Informed them of optical stack work, water-cooled LED backlight projects, custom LVDS controllers,etc. I threw in competitor names and stated that we rank high in Google searches due to the rich, technical keyword content. GoogleBot already found this thread. Geez, it is all knowing... I didn't provide the link to here, but I told them the Google hits would give them visibility beyond this forum and expand to Kiosk developers, etc. If their specs are not under NDA, hopefully they will bite. As turbocad6, stated, this will be a drop in replacement with probably no significant gain. I am hoping to get raw NIT values to compare against the stock NIT brightness of the NEC, which they may know as well. Perhaps I could spin a PCB express board with double the LED density in a rail strip, then leverage a higher powered driver. Ehh, do I really want to pursue this option, better to wait until I juice the current stock solution and evaluate its performance. I briefly researched CCFL lighting. The NEC has two CCFL, but I was wondering if I could upgrade the bulb strength? Are all CCFL bulbs the same in terms of brightness? I imagine you could have higher quality phosphor coatings, and such. Selecting CCFL Lamps http://www.lcdparts.net/howto/selectccfl.aspx CCFL Lamps http://www.lcdparts.net/CCFL1.aspx Maybe drive them a little hotter. The inverter driver may step-in once the voltage or current thresholds have been exceeded. spmclaugh, you mentioned rolling your own inverter. What needs are you addressing (i.e. better efficiency)? Can you comment on CCFL bulb quality? And from the folks at ERG: Selecting an LCD Backlight Driver http://www.electronicproducts.com/Sh...g.jan2007.html