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nuts they say

Firehorse

New member
Hi,
I want to use at least 10 screens, 2x20/2x16

I have a 633 the LCD is hard to read (red color)


I have seen an FFSTN lcd and it is much better to

read as the black/background is very dark and helps

visibility and to me looks better too.

Would it be possible to have a special order for

FFSTN lcd's from the factory instead of the ones

that are currently being used for the 633 ?

I would like red on black background

OK, this next question is a doozy..

What about a 20 row (yes, 20) lcd ? width to fit

into PC bay area, around maybe 5" or so.

It would require software management too so that

means customization.

I can see this a bit way over the top but can it be

done within practical means. ie very expensive or just plain whacko ?

Please let me know of what are good options

regards,
Adrian
:)
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What about a 20 row (yes, 20) lcd ? width to fit into PC bay area, around maybe 5" or so.
I think the only way to get a "20 row" display is to use a graphic panel, and use a character size such that 20 rows of text will fit the height. For a 5" high display area, each row would be about 1/4 inch tall. This would require a controller board, using your favorite cpu, that would take commands over a serial or USB port (from yet another piece of software), and send the data to the display.

Thats a two-part programming project, but the hardware could be off-the-shelf.
 

Firehorse

New member
20 rows lcd

Hi,
where would I need to look for such a graphic display ?

I meant 5" width to fit into a PC drive bay area, so 20 rows x 5.25"

thanks,
Adrian
:)
 
Finding a suitable display will be a real chore. Keep in mind that you have to allow room for the display frame in the drive bay area, so the actual active area of the screen will be a lot smaller. The frame may take about 1/4 to 1/2 inch on each side.

Then you have to consider what the actual resolution you need is; for example, assume that a font that is 20 pixels high is used (a somewhat crude font), then for 20 rows you will need a display that has 400 pixels vertically, and at least that much horizontally. I think a VGA resolution (640 h x 480 v) might be a good choice.

Crystalfontz doesn't have any color displays that are large enough (I assume you want a TFT display, since you are talking about red red red). You might find something by Optrex http://www.optrex.com/products/led_tft_lcd.asp or look at what Apollo carries http://www.apollodisplays.com/Products/TFTDisplays.html. I suspect a 6" (diagonal) VGA panel might cost around US$250.

Maybe you can find something surplus cheap, but some displays are intended for video inputs (like in-car viewers or portable DVD players), as opposed to digital inputs.

I think this project is probably going to be expensive, unless you are handy at both electronics and programming.
 

Firehorse

New member
as above

Thanks for the replies guys, much appreciated.

Yeah, I looked at the software side and its just ridiculous. Hardware control too.

Ah well, so be it.

regards,
Adrian
:)
 

CF Tech

Administrator
You could try a small TFT (like the seat headrest kind), combined with a video card that does composite out. Then write a small app to show what you want and drag it to that monitor.
 
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