Transflective raw LCD panels - without controllers

**spmclaugh** · 09-12-2007, 11:02 PM

Hi. It's been forever since I've been on the forums, but I'm getting interested in this stuff again. But now, I'm not afraid to use some of the LCD panels that I had previously thought were too barebones / low-level.

In the last year since I've been on here, I've become interested in analog & digital video interfaces + signal processing. I've made some demo hardware that generates a VGA signal, and I could easily do the same for TTL-type LCD interfaces. In fact, that's what I'm currently doing in a project. Should be done in 1-3 months (there's more to it than just the LCD interface). I'm very confidant that I could also work with LVDS panels. It's a lot simpler than I used to think.

Previously, I did not want to buy an expensive VGA/DVI controller. And back then, LVDS motherboards were rarer, and for some reason, I just never wanted to buy one... Now, I'd probably make a PCI card, or maybe a DVI-LVDS converter... I'm not really interested in making a VGA converter, though I could do it for sure. I could probably even go exotic and use USB or firewire and send individual frames on-demand (wouldn't be good for DVD's though).

***So my question to you all:***

Are there any particular transflective LCD's that you've always wanted to use, but didn't have a controller for? I would even consider *passive* displays for GPS only (no DVD's). I just want a barebones LCD that is cheap and sunlight readable.

**spmclaugh** · 09-12-2007, 11:08 PM

Two additions to the previous post:

- Size: If someone is interested in using a weird sized LCD, I'd still be willing to help out eventually, but I am personally looking for something 6.5" to 7.5". Maybe 8", but no bigger.

- Source: I'd even be willing to rip the display off some existing product, as long as the product isn't prohibitively expensive. I don't care if I don't get data sheets or product support. But it does have to be transflective, and be at least 640x480.

**2k1Toaster** · 09-12-2007, 11:34 PM

I think a 6.5" t o 7" screen would be best. How are you planning to get a touchscreen on there? You need to optically bond it to get the most out of transflective.

**spmclaugh** · 09-13-2007, 02:08 AM

I'm actually considering not using a touchscreen, but it would be infrared if I used one.

I've found a 6.5" on Digikey that I will most likely use, but I just wanted to get some more ideas. Especially devices that I could butcher up for their screens.

**spmclaugh** · 09-13-2007, 04:29 AM

Ok, some possible "donors" for screens (mostly I just want to find what models of screens these use): Sony U1, Fujitsu Stylistic, Fujitsu LifeBook U1010, the smallest Sony Vaio, something called the Intermec CV30, various kiosk devices... EDIT: And the obvious one that I forgot: OEM/aftermarket car navigation (bypassing the composite video input, if need be).

and some screen part numbers:
- Toshiba LTM025D88 (6.4"), LTM024DB4 (6.1"), LTD089EXWS (8.8")
- NEC NL6448BC20-20 (6.5"), NL6448BC26-09C (8.4")
- Optrex T-51638D084J-FW-A-AB (8.4"), T-51952D065J-FW-A-ACN (6.5")
- Sharp LQ065T9DZ01 (6.5"), LQ088H9DZ01 (8.8")
- Microtips NMTG-F32240JFWHSCW-A (6.0")

Maybe that's enough choices already, now that I stop to think about it... But it'd be great if someone like turbocad will has a few more to add

**turbocad6** · 09-16-2007, 02:13 AM

I have that 6.3" panel I mentioned, the toshiba ltm06c310 with transflective upgrade, that's the panel used in the sony u-1 btw, it's a cool screen. the first lcd to reach photo quality image resolution..., not sure if anyone else has reached that yet.

I have a few either optrex or au optronics 8.4" dual bulb really good screens, gotta dig them out & see what they are exactly, don't remember exactly, but bright high viewing angle stuff, they don't come in anything as there just industrial open frame lcd's & expensive though.

I have a fujitsu p1610 with an 8.9" widescreen that's transflective & high res, this is an awsome screen for a car install, I haven't opened it yet to get an lcd # yet, but there good outdoors even with the resistive touchscreen in place.if these screens could be sourced you could try to build a 1280x768 controller for it... sick screen really.

I really think the best way to run this particular screen though is off the fujitsu motherboard it comes with, I'm dying to install this in something..., it's the perfect carpc, core solo, low power , tiny motherboard, just perfect.

pulling a stock navi screen might not be a good option as I think you'd be lucky to even get 640X480, unless that's enough for you.

wanna play with something really cool & inexpensive to play with? why don't you play with pda/smartphone screens?, many are all out reflective instead of just transflective, & 1/4 vga... 4 of them togeather would make a pretty interesting display

or really my thoughts are an auxilary screen for an install. that would be really cool to develop & would sell big time, I bet many would love to add a small aux screen, in the cluster, in the rearview mirror, in the console...

if you could interface the touchscrren too you could also configure it to be the ultimate control panel right from within the pc itself, native to the skin & direct keycommand buttons to like rr or cf, or you could set the skin coordinances of the fusion brain & it could run the skin on that screen, were talking micheal knight meets star trek here, that's what I would play with if I was you

develop this with a screen from like a vx6700 or something & you could make enough to buy any screen you want

put me down for one or 2, maybe I'll trade you an 8.4"

**spmclaugh** · 09-18-2007, 12:59 AM