On 04/16/2013 10:21 PM, Duncan wrote:
James Tyrer posted on Tue, 16 Apr 2013 09:52:22 -0700 as excerpted:
I was very disappointed that I was unable to find a used CRT monitor. I
guess that it is just a commentary on our throwaway society. I can
understand why people throw away the cheap CRT monitors but the good
ones appear to get tossed too.
So, I bought a 22" 16:10 LCD monitor. The expensive ones were out of my
price range but I did spend a bit extra for an NEC even though it is
still made in China. It took considerable adjustment to tone it down.
Still doesn't look like my Sony flat screen TV.
Also, I bought a florescent back-lit monitor (like my TV). I am still
wondering about the LED back-lit ones since it has been impossible to
make true green high output LEDs. I understand that ones with a
synthetic band gap are supposed to become commercially available this
year. I wonder if this (True Green LEDs) will be the next thing to be
hyped in TVs and monitors.
Kevin mentioned the size and weight, but there's the energy usage too.
Here in Phoenix switching to (CFL-backed) LCDs and then LED (backed LCDs)
saved me a LOT of money on my monthly electric bill. Of course here in
Phoenix, about 8 months out of the year you're paying for every watt of
power the computer/monitor uses twice, once to actually do the computing
work, again to dump the heat from that back outside. It'd be a bit
different in colder climates where people are heating instead of air
conditioning for 8 months, but...
Meanwhile, IMO it's worth your while to get LED for the quality in any
case. The CFL-backlit are cheaper, and at least at my price-point, the
rest of the unit is built cheaper to match, as well. Plus CFL's only
half-way-there in terms of all the previously mentioned points, size/
weight/energy-efficiency all three.
Experts agree that CCFL-backlit LCDs currently have better color for
photographs than Red, Yellowish-Green/Bluish-Green, Blue LED backlit LCD
screens. LEDs have their points, but I will wait for the synthetic
band-gap TRUE Green (550 nm) LEDs.
With conventional high power LEDs, there is this gap between about 535nm
and 585nm which is where Green is. Green is usually considered to be
550nm but the maximum sensitivity of the human eye is 555nm which would
be the ideal Green LED color.
As, I previously said, I have read (in the trade publications) that high
power true Green LEDs based on a synthetic band-gap should be
commercially available this year.
--
James Tyrer
Linux (mostly) From Scratch
--
James Tyrer
Linux (mostly) From Scratch
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