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

thermoptic · 11-06-2007, 12:37 AM

Quote: Originally Posted by DJWaffles

First off thank you guys for all the research you did for this thread. I was beginning to lose faith that I'd ever be able to put a good LCD in my car. I've already abandoned the idea of having a motorized screen, but I'm hoping this one will be good for a stationary screen. I just have two questions.

My mobo already has a dual dhannel 36bit LVDS output on it. Will I still need to purchase an LVDS I/O controller? Or does the connection on the mobo mean that is already incorporated?

Second, will that LVDS connection even work with that 8.4 inch NEC screen? I don't know a lot about that stuff, but I was reading something about it being 6 or 8 bit color how does that figure into a 36 bit LVDS output?

Here's a link to the mobo

http://www.orbitmicro.com/global/fuz...id-p-4187.html

A cursory review of the User's Manual (see page 2-15) reveals this MB may have the transceiver chip integrated as the final connector is similar to the 40-pin connector on my adapter card:

http://www.logicsupply.com/media/man...)100x150mm.pdf

This appears to be a very new board. Pretty tight design targeted at industrial with more embedded SBC features such as SPI flash. Interesting. I have owned MSI PC MBs and they have always been solid.

My EPIA board allows for more possibilities with the more generic header. You need to do some homework on the JLVDS1 connector and compare with the connector on my EPIA transceiver card. Also check the voltages. I did not see an inverter header for power and control. You may have to rig an adapter cable assemble for the inverter.

The video interface will use n-bits per color, where you have three colors: Red, Green, and Blue, which comprise RGB. With 8-bits per color, you have 24-bits of information per pixel to generate 16,777,216 unique colors. See Figure on page 14 in the NL8060BC21-03 specification. 36-bits is probably too much and not supported by many panels, but hey, when us 24-bit guys are at the edge of a cliff, you can crank it to "11" with your 36-bit interface.

The LVDS controller will serialize the color data and transmit the information over the TDA, TDB, TDC, and TDD data lines driven by TCLK. I believe there are standards that define the source, parallel data mapping to the inputs of the LVDS controller (i.e. FPD-Link). See links below:

RGB Color Model
http://en.wikipedia.org/wiki/RGB_color_model

THC63LVDM LVDS 24Bit/18Bit COLOR HOST-LCD PANEL INTERFACE (cited in NEC LCD spec)
http://www.thine.co.jp/products/LVDS...VDM83R_63R.pdf

FPD-Link
http://en.wikipedia.org/wiki/FPD-Link

I'm playing catch up, that's all I can help with for now. Good luck.

11-06-2007, 12:37 AM	#62
thermoptic Constant Bitrate thermoptic's CarPC Specs Join Date: Aug 2007 Vehicle: 1998 Honda Accord Posts: 116 My Photos: ()	Quote: Originally Posted by DJWaffles First off thank you guys for all the research you did for this thread. I was beginning to lose faith that I'd ever be able to put a good LCD in my car. I've already abandoned the idea of having a motorized screen, but I'm hoping this one will be good for a stationary screen. I just have two questions. My mobo already has a dual dhannel 36bit LVDS output on it. Will I still need to purchase an LVDS I/O controller? Or does the connection on the mobo mean that is already incorporated? Second, will that LVDS connection even work with that 8.4 inch NEC screen? I don't know a lot about that stuff, but I was reading something about it being 6 or 8 bit color how does that figure into a 36 bit LVDS output? Here's a link to the mobo http://www.orbitmicro.com/global/fuz...id-p-4187.html A cursory review of the User's Manual (see page 2-15) reveals this MB may have the transceiver chip integrated as the final connector is similar to the 40-pin connector on my adapter card: http://www.logicsupply.com/media/man...)100x150mm.pdf This appears to be a very new board. Pretty tight design targeted at industrial with more embedded SBC features such as SPI flash. Interesting. I have owned MSI PC MBs and they have always been solid. My EPIA board allows for more possibilities with the more generic header. You need to do some homework on the JLVDS1 connector and compare with the connector on my EPIA transceiver card. Also check the voltages. I did not see an inverter header for power and control. You may have to rig an adapter cable assemble for the inverter. The video interface will use n-bits per color, where you have three colors: Red, Green, and Blue, which comprise RGB. With 8-bits per color, you have 24-bits of information per pixel to generate 16,777,216 unique colors. See Figure on page 14 in the NL8060BC21-03 specification. 36-bits is probably too much and not supported by many panels, but hey, when us 24-bit guys are at the edge of a cliff, you can crank it to "11" with your 36-bit interface. The LVDS controller will serialize the color data and transmit the information over the TDA, TDB, TDC, and TDD data lines driven by TCLK. I believe there are standards that define the source, parallel data mapping to the inputs of the LVDS controller (i.e. FPD-Link). See links below: RGB Color Model http://en.wikipedia.org/wiki/RGB_color_model THC63LVDM LVDS 24Bit/18Bit COLOR HOST-LCD PANEL INTERFACE (cited in NEC LCD spec) http://www.thine.co.jp/products/LVDS...VDM83R_63R.pdf FPD-Link http://en.wikipedia.org/wiki/FPD-Link I'm playing catch up, that's all I can help with for now. Good luck.