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

thermoptic · 09-11-2007, 12:13 AM

Turbocad6, no worries, I was just curious. No need to dig. I ran a quick search on LCD product offerings from Boe Hydis. I could not find an 8.4” solution.

The 10.4” displays are nice! I read that Boe Hydis offers the best viewing angel with patented FFS (Fringe Field Switching) technology, which extends conventional IPS technology by offering even wider viewing angles (full 180 degrees) and provides better transmittance. I could relocate the dash A/C controls to make room for the 10.4” and .... err, nah ... I better stick with the 8.4”.

I ran brief searches through Toshiba and Sharp websites for 8.4" transflective panels. Sharp offers QVGA transflective solutions for mobile applications and they have an 11/2006 PR announcing 12.1” transflective. Cursory review did not yield much.

Changeip, you raise a good question. I think the ST-NLT LCD technology plays a big part. This is most likely patented IP that is held close to the vest.

I was eyeing a transflective Xenarc 700TSV for a while. As I researched more, I quickly wanted native 800x600 resolution. The Xenarc 8” doesn’t meet my brightness and contrast ratio (CR) requirements. The Xenarc 7” 700TSV has great brightness but it is too small and the CR is lower. I think Xenarc lists the brightness and CR without the touchscreen, since the TS and non-TS models share the same specs. The same is true of the viewing angle. Has anyone confirmed this? I am also curious if the Xenarc 700TSV supports 16M colors? I didn’t see explicitly stated on their site but I assume it does.

From what I have read, you won’t get specs from Lilliput or Xenarc, as this is competitive information. You never know the details until you get the panel specification, and panels vary with production runs.

I think the transflective upgrade will diminish the brightness; same for the resistive touchscreen. I don't know how much though. With a capacitive or SAW touchscreen, I think the brightness reduction is very minimal, but it looks like optical bonding is needed to eliminate reflections. I suppose I could eliminate the touchscreen altogether and use a touchpad, but I would probably be unhappy later.

The 6.5” NL10276BC13-01C is very new. I didn’t find much info on its backlight specs, but I found a manufacturer for the LED driver. They should know the required raw brightness of the backlight assembly. Here are the links:

http://www.ergpower.com/pub/ledcross.asp
http://www.ergpower.com/pdf30/LED%20.../SFDLB3638.pdf

On the site, you will also see references to the 84LHS06 lamp holder for the 8.4” NL8060BC21-03. Maybe they are proposing an LED conversion kit for this model, since the NEC datasheet lists CCFL? See the SFR3658 and SFDLB3676 parts. So, did I already find options to pimp out the 8.4” with LED?

I am starting to feel good about the 8.4” NL8060BC21-03. Time to hound the distributors...

09-11-2007, 12:13 AM	#9
thermoptic Constant Bitrate thermoptic's CarPC Specs Join Date: Aug 2007 Vehicle: 1998 Honda Accord Posts: 116 My Photos: ()	Turbocad6, no worries, I was just curious. No need to dig. I ran a quick search on LCD product offerings from Boe Hydis. I could not find an 8.4” solution. The 10.4” displays are nice! I read that Boe Hydis offers the best viewing angel with patented FFS (Fringe Field Switching) technology, which extends conventional IPS technology by offering even wider viewing angles (full 180 degrees) and provides better transmittance. I could relocate the dash A/C controls to make room for the 10.4” and .... err, nah ... I better stick with the 8.4”. I ran brief searches through Toshiba and Sharp websites for 8.4" transflective panels. Sharp offers QVGA transflective solutions for mobile applications and they have an 11/2006 PR announcing 12.1” transflective. Cursory review did not yield much. Changeip, you raise a good question. I think the ST-NLT LCD technology plays a big part. This is most likely patented IP that is held close to the vest. I was eyeing a transflective Xenarc 700TSV for a while. As I researched more, I quickly wanted native 800x600 resolution. The Xenarc 8” doesn’t meet my brightness and contrast ratio (CR) requirements. The Xenarc 7” 700TSV has great brightness but it is too small and the CR is lower. I think Xenarc lists the brightness and CR without the touchscreen, since the TS and non-TS models share the same specs. The same is true of the viewing angle. Has anyone confirmed this? I am also curious if the Xenarc 700TSV supports 16M colors? I didn’t see explicitly stated on their site but I assume it does. From what I have read, you won’t get specs from Lilliput or Xenarc, as this is competitive information. You never know the details until you get the panel specification, and panels vary with production runs. I think the transflective upgrade will diminish the brightness; same for the resistive touchscreen. I don't know how much though. With a capacitive or SAW touchscreen, I think the brightness reduction is very minimal, but it looks like optical bonding is needed to eliminate reflections. I suppose I could eliminate the touchscreen altogether and use a touchpad, but I would probably be unhappy later. The 6.5” NL10276BC13-01C is very new. I didn’t find much info on its backlight specs, but I found a manufacturer for the LED driver. They should know the required raw brightness of the backlight assembly. Here are the links: http://www.ergpower.com/pub/ledcross.asp http://www.ergpower.com/pdf30/LED%20.../SFDLB3638.pdf On the site, you will also see references to the 84LHS06 lamp holder for the 8.4” NL8060BC21-03. Maybe they are proposing an LED conversion kit for this model, since the NEC datasheet lists CCFL? See the SFR3658 and SFDLB3676 parts. So, did I already find options to pimp out the 8.4” with LED? I am starting to feel good about the 8.4” NL8060BC21-03. Time to hound the distributors...