Thread: Perfect 7" widescreen LCD?

Nice, I'm hoping some other alternatives to the Xenarc and Lilliputs will come out soon.

Originally Posted by slffl

Nice, I'm hoping some other alternatives to the Xenarc and Lilliputs will come out soon.

Keep in mind, these are bare LCD's, not packaged LCD's like the Xenarcs or Liliputs..

"Some Assembly Required" is the phrase.


May or may not come with controller cards, inverters, power supply or cables...

A few more part numbers for other widescreen LCD's with similar specs:

Brand AU Optronics
Part Number A070VW01
Size (in.) 7.00
LCD Type TFT
Resolution 800X480
cd/m² 400
http://www.auo.com/english/products/...&product_id=50


Brand Hitachi
Part Number TX18D11VM1CAA
Size (in.) 7.00
LCD Type TFT
Resolution 800X480
cd/m² 400
http://www.japantft.com/products/Hit...8D11VM1CAA.htm
http://www.hitachi-displays.com/catalog/skg-228-e.html

Brand Hitachi
Part Number TX18D16VM1CAA
Size (in.) 7.00
LCD Type TFT
Resolution 800X480
Other
cd/m² 350
http://www.hitachi-displays.com/cata...6VM1CAA-e.html

Brand Hitachi
Part Number TX20D16VM2BAA
Size (in.) 8.00
LCD Type TFT
Active Area 174.0(H) x 104.4(V)
Resolution 800X480
http://www.hitachi-displays.com/cata...6VM2BAA-e.html
(PDF) http://hitachi-displays-eu.com/menu/brochure1103.pdf

Brand Hitachi
Part Number TX20D16VM1CAA
Size (in.) 8.00
LCD Type TFT
Resolution 800X480
Active Area 174.0(H) x 104.4(V) mm
cd/m² 400
http://www.hitachi-displays.com/cata...6VM1CAA-e.html

Pay special attention to this last two LCDs - the Hitachi 8" TX20D16VM2BAA /TX20D16VM1CAA.

The active area dimensions are EXACTLY the same size as a WRX's double-din opening! The double-din opening measures 174mm wide, and 100mm tall.


These are all new-model LCD's however, so availability might take a while.
The second Hitachi 8" LCD is listed as being "in development".

Also, the interfaces are listed as "C-MOS 6-bit Digital RGB", so I'm not sure if that's LVDS or requires a controller.. but 6 bits x 3 (RGB) is 18-bits, so it might be LVDS.

Edit: I sent an e-mail to Japan-TFT.com about the Hitachi 8" TX20D16VM2BAA LCD.

This post is primarily for my own reference, but thought others might find it interesting.

I've been looking for an LCD with an LVDS interface, so I can hook it up directly to a board like this, which has a LVDS transmitter.

http://www.commell-sys.com/Product/SBC/LV-671.HTM


Problem is, the Hitachi 8" ones above are CMOS interface, not LVDS.


Normally, this requires an expensive LVDS receiver.. but all it really is is a single chip, like this:

http://www.national.com/ds/DS/DS90CF561.pdf

The application diagram on the first page is interesting, but the rest is mostly technical.

Edit: The receiver chip is self-contained, no external support chips required, and is Only $7 for one.

References:
http://www.digikey.com/scripts/dksea...D%2DND&site=us
http://www.national.com/pf/DS/DS90CF364A.html

Now, I have some electronics engineering experience, so I figure it probably wouldn't be too hard to design a small LVDS receiver module for CMOS LCD's like this.

And with PCB production services like this, it wouldn't be too expensive:

http://www.expresspcb.com/ExpressPCB...sMiniboard.htm

The boards themselves would probably be only around $20, and with the parts, maybe $40-50.

Just some random thoughts.

if you can get it to work I'll definately buy4

Actually.. I may not even have to make the converter.

This'll do it:

http://www.evalue-tech.com/evalueweb...mn=EPM-1530-18

PDF: http://www.evalue-tech.com/Download/...t/EPM-1530.pdf

Picture: http://www.evalue-tech.com/evalueweb...1530-18-72.jpg

Listed here, along with 18-bit and 24-bit transmitter/receiver modules:
http://www.evalue-tech.com/evalueweb..._line.cfm?pt=7


Things I've noticed:

• It runs on 5v or 12v power feeds. Easy connection to a PC power supply, they've even got the pin-holes for the floppy-drive size connector. Edit: The receiver does not need a power feed - the transmitter boards do, and have the floppy drive connector for power.
• The Hirose connector DF14A-20P-1.25H at the top of the pic is the exact same kind as on the Commell LV-671/LV-670 LVDS transmitter. Edit: Hirose connector at the top is the TTL/CMOS output - LVDS input is the connectors at the bottom, either one.
• With a board this small, I can't imagine it costing very much.

Of course, the company's not in the states... I'll ask them about pricing anyway.

Edit: They have a US distributor: http://www.bcmcom.com/

I'm going to ask them about pricing and availability for this.


This would be useful for anybody that picks up any LCD with a CMOS/TTL interface.

Some more spec sheets for the 8" Hitachi TX20D16VM2BAA:

Spec Sheet w/Pinouts:
http://hitachi-displays-eu.com/pdf/tx20d16vm2baa.pdf

Inverters:
INVC617
http://hitachi-displays-eu.com/pdf/invc617.pdf
INVC657
http://hitachi-displays-eu.com/pdf/invc657.pdf

subscribing to interesting thread...

Hm, this thread looks like it has the potential to answer all of my LCD questions...