Re: Silly errors in design or A vendor gets embarrased

Adrian Jansen wrote:
PeteS wrote:
Adrian Jansen wrote:


PeteS wrote:
... snip ...

Interesting how simple design stuff gets missed in the rush to get to
market.

But seriously, I would be interested in more details. We are on the
lookout for this type of display for instruments readable in full
sunlight, and none of the CCFL units are good enough.

--
Regards,

Adrian Jansen adrianjansen at internode dot on dot net
Design Engineer J & K Micro Systems
Microcomputer solutions for industrial control
Note reply address is invalid, convert address above to machine form.


Well, the CCFL unit we currently use is popular because it is readable
in full sunlight (but that's UK sunlight ;)

What output (lumens) do the ones you have looked at advertise?

One thing about white LED; the output is lower than CCFL generally, but
they are just as readable because the emitted spectra is white, not
somewhat blue.

Once I get back to my real news account (tomorrow night) I'll give
details of highly visible CCFL (provided you aren't in direct
competition with me ;)

Cheers

PeteS

I design systems for glider ( sailplane ) instruments, and we need visibility such that the display can be read at a glance, with the sun at any angle. The best units I have seen are used in marine apps, eg fishfinders, but I havent found a source of the LCDs they use yet.

I have looked at units advertised as 600-700 nits, and in full Australian sunlight the colors wash out almost completely. The remaining image in monochrome is readable, but only just, and nowhere near what an ordinary dot matrix mono transflective LCD can do.


I am looking at (and probably going to use) a Kyocera panel. I'll have to wait until tomorrow at work to get the precise part number. This is 5.7", QVGA, but they do other sizes and resolutions.

I was personally impressed with the readability in full on light, but the best way is to get a sample and look at it yourself, of course. Do you have a Kyocera rep. in your black book?

Cheers

PeteS
.

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