Color, Transflective LCD

Ok, I ask for too much, but what I would really like to see is a color transflective, 320 x 240 say.

Also, I would like world peace, clean air and really cheap alternative fuel source. Probably more luck with the latter.

Any thoughts anyone?

Thanks

YtC

I saw some interesting stuff on Dontronics the other day.

-Nathan

Yes, me too - the microVGA by some chance? The MicroLCD is just a little small for me at 1.5", but hey, I like the idea.

I would like to point out that Mr Dontronics is a fellow Australian from Melbourne. Unlike me, he can be trusted.

:smiley: We were looking at the small color LCD. Looks like fun.

Let us know if you turn anything else up in your search.

-Nathan

http://www.display3000.com/html/mini1.html It’s a nice little Color LCD. They even sell one with a built-in ATmega8.

Yeah I wrote to that guy today - apparently he has something bigger in the works…

YtC

That’s pretty much exactly what we need - but bare. Does anyone have any luck digging up the original mfg? China I assume.

-Nathan

Here’s something else to consider.

I’m personally interested in pairing the common 240x160 Sony LCD 2.7" that EarthLCD likes to toss about with an Epson video chipset. It’s on my “to do list”. I have one via a different provider at a very steep discount compared to EarthLCD, and while they only do 512 colors (9 bit active matrix), the higher resolution is nice for some projects.

This might be an option if Sparkfun feels like ever rolling their own boards.

Sony datasheet (from web search):

http://www.ortodoxism.ro/datasheets/sony/a6802566.pdf

Epson controllers

http://www.erd.epson.com/vdc/html/products.htm

Pick your poison:

S1D13A04 (160K SRAM, direct and USB client interface, sprite engine)

http://www.erd.epson.com/vdc/pdf/13A04/ … 3a04tm.pdf

S1D13A05 (256K SRAM, direct and USB client interface, sprite engine)

http://www.erd.epson.com/vdc/pdf/13a05/ … 3a05tm.pdf

S1D13706 (80K SRAM, direct interface)

http://www.erd.epson.com/vdc/pdf/1376/tm/s1d13706tm.pdf

As a home hobbyist, my perference is for something that’s available (you can source these through digikey) and doesn’t need an Xray machine to inspect (although I can do BGAs if need be, but I don’t want to do 4+ layer boards). Only issue I see for the “normal” hobbyist is the sheer complexity of a video chipset.

I’m personally in favor of the 160K SRAM variant. Lots of room to grow with that design, especially if some kind of swappable header is designed so you can change the video interface and keep the core (and cost) the same as you with various LCDs. The only reason I wouldn’t go for the 256K RAM variant is the difficulties dealing with PFBGA-121 packaging.

Hmm… I’m getting errors trying to edit my post… anyway…

I know EarthLCD also carries a 16 bit color 128x128 cell phone display, but that’s obviously a problem. Same with my listed Sony display. They’re technically “surplus”. Of course, that’s why I think a semi-universal board with swappable drive header boards would be nice :slight_smile:

Epson driver interfacing:

Given the standard parallel bus architecture, a large PIC18, an ARM with external memory bus, or a large ATMEGA should be able to just add the display to its address space. Of course, some ARMs already have a display driver :slight_smile:

Also, given the demise of the Juicebox, maybe Giantplus has some spare LCD’s in inventory in Taiwan?

http://www.giantplus.com.tw

Their 1.8" 320x240 12 bit and 2.5" TFT 480x234 16 bit color screens looks kinda interesting :slight_smile:

No response from Giantplus, but we do have a source for the color Nokia 6210? LCD and connector. Should have samples this week and pieces before 2006.

Oh boy! Color LCD!

-Nathan

Any word on pricing on those 6210 LCDs? :smiley:

Looking forward to see Nokia LCDs coming up…

While talking about color LCDs, perhaps a tiny OLED would be of interest for many as well…

http://electronicproducts.com/ShowPage. … b2006.html

erik

Here is a source for tiny OLEDs:-

http://www.trulysemi.com/eng/prod.asp

Cheers

Jay

The knock-off Nokia LCDs should be $25-$35 with connector depending on how customs treats us - sound ok? :wink: This assumes we approve the samples. The unit might not be worth it.

We like dev boards! So expect a breakout board as well.

I called OSD and got a sales rep immediately. Wow, that was easy. They didn’t really understand the SFE business model, so they may take some work, but the 128x128 OLED is available and looks very pretty.

-Nathan

Nathan

Do you guys need to pay customs/import duties for electronic items?

Regds

Jay

Yea…customs…could be difficult. Anyway, about displays. I have been trying to source the necessary parts for my project and the most difficult part to source has to be displays. (It seems so expensive and misunderstanding everywhere). Once I was travelling in mainland china(I live in South Asia) and I was in this electronic supermarketplace (huge!!), I was lucky enough to have found a sample distrubutor of Innolux displays. So I went ahead and ask for pricing…3.5" 480X234 colour TFT LCD display cost only YMB 230 (about USD 30) and sold in units of one! The digital ones are YMB 330(about $ 45) and you can take the controller board with you. They have other sizes too (from 1") That shop was demostrating the LCD with a chinese film when I was there, it plays like a normal DVD player screen (clear and no glitches)

There is one downfall and you guys are not going to like it, the display has no controller and requires a 350 ns max clock on three lines each delay a bit from the last, a 15V line, a -10 V line turning on and off. I m not sure how I will drive it yet but I think the Xilinx CPLD with some Stepup chips + fast settling DACs + 512K SRAM could be a solution. The panel I ve got is an analog one with the max colour depth not specified in the datasheet, but if I use a 24bpp config, each image is going to be about 333KB and average atmel megas might not be able to handle 333KB *28 per second. that’s 9.1 MB of visual information /s in active cases such as movies.

Anyway, I just though that spark fun, if able to resolve the customs problem, might want to consider the Innolux displays along with CPLD controllers. It would be so cool if one day SFE provides a 3.5" LCD TFT Full colour + controller product and contruction tutorial! And Since I am going to attempt controlling that panel, I wouldn’t mind(if I make it to the end:)) provide the CPLD configs and circuit designs. Innolux looks to be a Taiwanese company.

Jacky