OLED???

On Thu, 18 May 2006 07:59:52 +0000 (UTC), snipped-for-privacy@w6yx.stanford.edu (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 Gave us:

Facts?

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 black.

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 shape.

You must have been asleep getting your degree when they went over how to measure color.

On Thu, 18 May 2006 14:57:58 GMT, "BC" Gave us:

You're an idiot. You are also guilty of your own bullshit remarks.

On Thu, 18 May 2006 14:57:58 GMT, "BC" Gave us:

You're an idiot.

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 devices?

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 punk.

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, dipshit.

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.

On Thu, 18 May 2006 15:10:39 GMT, "BC" Gave us:

You're an idiot. Just because you declare that to be what you see, doesn't make your claim correct, so you cannot call your CRAP "facts", dumbshit.

On Thu, 18 May 2006 15:10:39 GMT, "BC" Gave us:

More proof that you are too blind to even be in this thread.

You must be trolling.

Additive color adds the primaries {red, green, blue} to make white.

Subtractive color uses {cyan, magenta, yellow} - when all are used to generate black.

Look it up.

Alan

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 it?

Alan

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.

Meindert

On Fri, 19 May 2006 07:50:09 +0000 (UTC), snipped-for-privacy@w6yx.stanford.edu (Alan Larson) Gave us:

They made it like two or more years ago. It is not a production item.

It does 24 Hz at its max res.

On Fri, 19 May 2006 09:59:26 +0200, "Meindert Sprang" Gave us:

What is a backlight?

On a crt, there is no e-beam on a black image. How is black created on an LCD?

When the light source is white (as with a backlit LCD) then the filters in front subtract the light and therefore the three primary filters will make black. Do not confuse this with colour printing.

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.

Meindert

By dimming the light through the liquid crystal before it hits the color filters.

Meindert

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Meindert