芝麻信用评估
话说最近我让@乌火寒客 mm带了一个15版的，比这个划算多了，嘿嘿。
对于夏普的四色技术，老外的cnet上面专家已经揭露了就是一个噱头，没有一点作用。http://reviews.cnet.com/8301-33199_7-57341088-221/myths-marketing-and-misdirection-hdtv-edition/
Quattron yellow pixel
Sharp has made a big push with its "Quattron" yellow pixel, an old-school "well ours is one better" over the typical red, green, and blue of all other TVs. Their claim is that it produces more realistic colors, including yellow.
Here's the thing, it's fake. Not the pixel, that's real enough, but the yellow is entirely created by the TV. It has to be. The entire television system, from the camera to the TV, is based on the three additive primary colors: red, green, and blue. With these three colors, all the colors in the rainbow can be created. Combine red and green, and you've got yellow. That's how every other TV works.
there are strict guidelines for exactly what that red, green, and blue should look like. If there weren't, every TV show, every shot in a TV show for that matter, would look radically different. If a TV follows these guidelines, reproducing the red, green, and blue exactly to the standards, the resulting picture is incredibly lifelike and likely more natural than you'd ever thought possible.
Change those colors, add to them, make them "richer" or "better," and the TV is not reproducing what is in the signal. It is no longer accurate, though many people do like this over-done or oversaturated color scheme.
Which is to say, if a TV is designed and set up properly, it doesn't need a yellow pixel. It produces yellow perfectly on its own. If Sharp is adding yellow, or making yellow "pop," it is likely changing what is in the original signal. If it's producing exactly what the standard specifies, what's the point of the yellow pixel?
Also, red, green, and blue are the wavelengths to which your eyes are most sensitive. Funny how that works.
