On Nov 16, 8:44*am, Bill D wrote:
On Nov 15, 6:17*pm, John Cochrane
wrote:

On Nov 15, 3:57*pm, JohnDeRosa wrote:

On Nov 15, 10:54*am, Bill D wrote:

Qualcom's Mirasol display looks like a magazine cover in direct sunlight.

And at 1/10th the power requirements. *Important for gliders but this
will also really impact battery life for everything from laptops,
tablets to cell phones.

I hate to break it to you guys, but there is a gorgeous sunlight
readable display on the market, the clear-nav. SN10 is pretty easy to
read too, but offers less stuff on the screen, which Dave might argue
is an advantage. No need to wait...
John Cochrane

Don't think so.

Current engineering specs say 1500 nits brightness is required for
'good' readability in direct sunlight. *CCFL's backlights delivering
that brightness would pull amps, not mili-amps. *LED backlights are
better but current draw and heating are still problems. *If you did
somehow create a screen with 1500 nits brightness, it would be like
looking into a car headlight.

I can't find the specs, but I'm guessing the best glider displays are
in the 500 - 1000 nit brightness range and pull around .8 amps.

Far easier on the eyes and battery would be a high-contrast, high
color saturation REFLECTIVE display like the Mirasol technology.

Bill,

I am not sure where you got your engineering specifications. But I
have found that display brightness in an aircraft quality display has
little to do with sunlight readability. The key factors are the
coatings and the contrast ratio. The Ultimate Le has two specialized
coatings and an extremely high contrast ratio, it is as readable in
the sun at the low backlight settings as in the high backlight. The
sun has no noticable effect on the Ultimate Le display. The Ultimate
Le with LED backlight has no heat problems. In fact the first
Ultimates with a CFFL backlight got warm but did not have any issues.

Displays with low contrast ratios need unusaully high backlight to be
seen. This is typical of most low cost low qualtiy displays.

The Ultimate Le at full backlight has 1400 nits and draws about .7
to .8 Amps. At lower backlight settings of .3 to .4 amps the
display is very sunlight viewable with vibrant colors.

All the above information comes from testing in direct sunlight from a
varitey of angles and first hand experience in flight.

Richard
www.craggyaero.com