On Thu, 18 May 2006 07:59:52 +0000 (UTC), email@example.com
(Alan Larson) Gave us:
Well I was actually specifically referring to large form factors.
Eventually, it will be the display of choice. The 19 Million pixel
IBM already is in the movie industry.
Always? Then why don't we see more LED based monitors? CRTs aren't bad
for color rendition. We've had years to play around with the phosphors,
and phosphor chemistry is easier to adjust than semiconductor junctions.
Probably the best system, color-wise, is the DLP projection stuff, where
the light source and color filters can be selected separately.
Not for color rendition.
On Thu, 18 May 2006 13:49:28 -0000, Grant Edwards
Three backlit "filtered" light sources ARE subtractive method. The
three together form clear or white, not black.
Opaques are additive color mixing. The three primaries added make
On Thu, 18 May 2006 14:57:58 GMT, "BC" Gave us:
Not in additive mixing.
It is NOT a color wheel. The item I refer to is made by the SMPTE
folks. It is called a CIE Chromaticity chart, and has a triangle like
You must have been asleep getting your degree when they went over
how to measure color.
On Thu, 18 May 2006 15:00:21 GMT, "BC" Gave us:
You're a joke.
Tell us, oh all knowing twit... what are the dot pitch specs on both
I'll bet the sony tube is a 0.25 or less phosphor pitch.
I'll bet the LCD is a 0.28 or higher.
If it was the defining element back when CRTs were all that were
around, what makes you think that has suddenly changed now?
Sharper indeed... Sure, bub. About as sharp as you are, Oblio.
On Thu, 18 May 2006 15:10:39 GMT, "BC" Gave us:
You're an idiot. This discussion isn't about what is currently being
marketed to the masses. It is about quality, you retarded sidestep
CRTs are still king, regardless of what is pushed onto the shelves,
or how bent your fuched in the head logic is.
The ONLY reason CRTs are not being made in today's large form factor
world is that the glass is too hard to make at that span. Otherwise
they would STILL be king, and would STILL be being marketed.
SO the ONLY driving factor here is cost of manufacture, NOT quality,
CRTs are king and would still rule, if one could get a 50" tube
made. One starts running into relativistic problems as well at those
spans, however. That one likely went right over your head as well.
Interesting claim. A bit of google searching found no references to
this 19 million pixel IBM display. Can you provide some pointers or
other information that will allow one to find any more information on
Indeed, additive color mixing is used with light sources, you add light of
different colors of light to the dark.
And sbutractive colors are used with ink/paint on white surface, hence you
subtract colors from the white surface.
On Fri, 19 May 2006 07:50:09 +0000 (UTC), firstname.lastname@example.org
(Alan Larson) Gave us:
They made it like two or more years ago. It is not a production
It does 24 Hz at its max res.
But you should not consider an LCD like this. Otherwise additive colors made
by incansescant lights and R/G/B filters would also be subtractive.
In a backlit LCD, you have a white light source which is regulated from low
to high intensity by the LC and polarizers. After that, each pixel has a
color filter which makes each pixel a light source being either R,G or B.
Additive color mixing is per definition mixing of colored light, emitted
directly from a source before an object reflects the light.
Subtractive color mixing is per definition created by reflected light and
colorants that absorb certain colors.
So per definition, anything that makes colored light by itself, by use of
light sources, is additive mixing.