Sharp RGBY Televisions
in [Design]
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From: Spehro Pefhany on 29 Mar 2010 16:36 On Mon, 29 Mar 2010 08:57:17 +0100, Martin Brown <|||newspam|||@nezumi.demon.co.uk> wrote: >I used to love the way US newscasters drifted between ghoulish green and >purple in the days before they were clamped to pale orange leather. I >always believed it was a limitation of NTSC broadcast signals until I >lived in Japan where they manage to do it correctly. NTSC = No True Skin Colors? >Regards, >Martin Brown
From: Archimedes' Lever on 30 Mar 2010 03:39 On Mon, 29 Mar 2010 05:28:34 -0700 (PDT), osr(a)uakron.edu wrote: > I've yet to see a "synthetic" yellow that ever comes close >to a direct yellow. Would not "compiled" be a better term? There is a video of a Thai dance that used a lot of yellow lasers. Quite a beautiful dance, even though it gives the impression that young girls and women are enslaved to such "service" in life. Then they pick the best and prettiest dancers from that crop to actually put "on display". A lot of them look real hot, but then my 18 or older alarm starts sounding, because even though some of them are surely of adult age, many did not look that way. Anyway, they had a LOT of pure yellow lasers going and it certainly does light everything up with a real yellow tinge. Still, an LCD panel is a backlit filter array more than anything else, so this added 'pixel' into the 'pixel mosh pit' might make for a 'compiled pixel' that actually expands the color space use quite a bit. Funny how I had to explain to a guy at work the other day how the three colors add up to black on a printer and white on a display. I had to explain to him the differences between additive and subtractive color mixing and how an opaque "color" will add together to form black. He acted like he still didn't believe me as he went back to his workstation. I did not have time from my work to go into any great depth of show him how a display adds up the same three colors differently than the printer does. Most all printers use opaque inks, not transparent inks
From: Archimedes' Lever on 30 Mar 2010 03:41 On Mon, 29 Mar 2010 05:28:34 -0700 (PDT), osr(a)uakron.edu wrote: >With 8 bit RGB alone, I have a theoretical 16.8 million color >system. In reality, we would use 32 or 64 color palettes. More then >that is overload. We cannot even see what a modern display is capable of. They can all pretty much produce colors that we are not able to discern. Our useable, readable, "seeable" "color space" is INSIDE of what they can produce already.
From: Archimedes' Lever on 30 Mar 2010 03:43 On Mon, 29 Mar 2010 05:28:34 -0700 (PDT), osr(a)uakron.edu wrote: > Tom Cruise's helmet is brown in TOP GUN, >in NTSC. In laser generated video or in the theatre on film, it >matches the squadron color, which is violet. I have always remembered Violet. So you had a very shitty NYSC TV at the time you decided that that was the way things are, or it was very poorly set-up, which was pretty common in the 4:3 NTSC days. (Never Twice Same Color).
From: Archimedes' Lever on 30 Mar 2010 03:45
On Mon, 29 Mar 2010 11:50:58 -0800, Robert Baer <robertbaer(a)localnet.com> wrote: >Greegor wrote: >> Is there any truth to their claim that adding Yellow to RGBY >> enables them to represent colors that RGB cannot? >> >> Are Yellows hard to produce with RGB Displays? >> > Salesmanship..at its "finest"... > If you are really good, you can sell a refrigerator to an isolated >Eskimo... Even if his Igloo has no power. The fridge is actually a food vault to keep the bears away. At least... that is the pitch. :-) |