Slashdot Mirror

← Back to Stories (view on slashdot.org)

Is the 4th Yellow Pixel of Sharp Quattron Hype?

Posted by timothy on from the hi-fi-jumprope dept.

Nom du Keyboard writes "Sharp Aquos brand televisions are making a big deal about their Quattron technology of adding a 4th yellow pixel to their RGB sets. While you can read a glowing review of it here, the engineer in me is skeptical because of how all the source material for this set is produced in 3-color RGB. I also know how just making a picture brighter and saturating the colors a bit can make it more appealing to many viewers over a more accurate rendition – so much for side-by-side comparisons. And I laugh at how you are supposed to see the advantages of 4-color technology in ads on your 3-color sets at home as you watch their commercials. It sounds more like hype to extract a higher profit margin than the next great advance in home television. So is it real?"

4 of 511 comments (clear)

  1. No. by feepness · · Score: 0, Redundant

    No.

    Don't make me say it a third time.

  2. Re:AVSforum take on it by DinDaddy · · Score: 0, Redundant

    No link.

  3. Re:Of course it's hype, just SHARPer :-) by tomhudson · · Score: 0, Redundant

    The "refresh rate" is set by the flourescent light in your back panel - not the lcd crystal shutters. Just like the "LED TV" is just an LCD tv with an LED for a backlight instead of one or more flourescent lights. That's why they all end up looking like crap in comparison to a plasma - where each pixel is made up of 3 separate emitters, no backlight, no diffusion panel, no light bleed when you stand near it and look down (or at too great an angle on the horizontal axis), and inherent reduced motion blur because the image is strobed, same as a crt

  4. Re:Of course it's hype, just SHARPer :-) by tomhudson · · Score: 0, Redundant
    The means that the individual pixels are strobed 600 times a second., not to be confused with the LCD "dynamic contrast" bit which just means having multiple smaller fluorescent backlights instead of one large on, so that areas of the screen that are darker, they can dim that areas backlight and (1) save energy and (2) make the blacks "blacker". Only works if there's no bright spot in that area of the screen, so it's not the greatest.

    Spend the few bucks more and buy a plasma. You won't get the "soap opera effect", and you'll have a rock-steady picture.