[kde-linux] Hello again

[James Tyrer]

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