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[Engadget]Samsung to announce 2560 x 1600 10.1 tablet - Page 2

post #11 of 44
good luck playing any games or reading anything on that tablet
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my first child
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post #12 of 44
Pentile though.


RGBG pentile is 66% of the resolution advertised, RGBW is half. Not only do you have 1 fewer sub pixel per pixel, you also have a white subpixel, which is basically filler.



4 RGB pixels = 2 RGBW pixels, but because Samsung is counting a pixel as 2 subpixels they can say its actually "4" pixels.

Its not a 2560x1600 display, its a 1280x800.


Nothing special here folks, just another deceptive scam from Samsung.
Edited by nathris - 5/15/11 at 7:46pm
    
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post #13 of 44
Quote:
Originally Posted by nathris View Post
Pentile though.


RGBG pentile is 66% of the resolution advertised, RGBW is half. Not only do you have 1 fewer sub pixel per pixel, you also have a white subpixel, which is basically filler.



4 RGB pixels = 2 RGBW pixels, but because Samsung is counting a pixel as 2 subpixels they can say its actually "4" pixels.

Its not a 2560x1600 display, its a 1280x800.


Nothing special here folks, just another deceptive scam from Samsung.
yay
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post #14 of 44
this is impractical so who cares. If only the e-peen factor is present...
    
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post #15 of 44
Quote:
Originally Posted by nathris View Post
Pentile though.


RGBG pentile is 66% of the resolution advertised, RGBW is half. Not only do you have 1 fewer sub pixel per pixel, you also have a white subpixel, which is basically filler.



4 RGB pixels = 2 RGBW pixels, but because Samsung is counting a pixel as 2 subpixels they can say its actually "4" pixels.

Its not a 2560x1600 display, its a 1280x800.


Nothing special here folks, just another deceptive scam from Samsung.
Who can argue with that crap math... Oh wait.

It has less sub pixels, not less pixels.

Also how do you get to 1280x800 for having 1 less sub pixel out of 3, thats 2/3s so 1707x1067.
post #16 of 44
Quote:
Originally Posted by FtL1776 View Post
Who can argue with that crap math... Oh wait.

It has less sub pixels, not less pixels.

Also how do you get to 1280x800 for having 1 less sub pixel out of 3, thats 2/3s so 1707x1067.

Its not just one less sub pixel. Its one less sub pixel AND one white pixel.



They are counting a pixel as 2 sub pixels, but to get the same information as an RGB pixel they need 4 sub pixels. Hence, 50%.

Its just a marketing scam. You can't use 2 sub pixels to represent color information, which means that this display will only be "2560x1600" when its representing black and white images, and even then you'll likely get color bleeding.

Try and display this image on a RGBW display:


And not only will you get half the rated resolution, it will likely mess up the colors thanks to the extra white pixel, and the lack color information.

If I wanted to display blue at one coordinate, but the sub pixel arrangement for the corresponding pixel was red-green or red-white or green-white, how exactly would I do that?


My "crap math" comes from undergraduate work I've done on color perception. I know how color works, how light works, how our eye translates light into color, how color is represented digitally, and how our brains perceive color, so when I tell you this is a load of BS, chances are its a load of BS.
    
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post #17 of 44
For all the people worrying about text size. Did the text on the iPhone 4 change size from the 3GS? No? I wonder how they pulled that off? You can change the text size.
    
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post #18 of 44
The internal resolution on the iPhone didn't change at all actually, because iOS apps can't handle dynamic scaling. Their 960x640 screen is really just 480x320 with 4xAA
    
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post #19 of 44
Quote:
Originally Posted by AMv8(1day) View Post
I think I heard a line like that somewhere from someone far more believable.

"640k ought to be enough for anybody" Bill Gates

Assuming that battery and/or processing efficiency will somehow halt progress is incredibly shortsighted. I'm obviously not speaking of tomorrow, but 5-10 years from now?
I didn't say that there would never be a chip that could and or fit the requirements eventually. Please don't put words in my mouth.
post #20 of 44
Quote:
Originally Posted by nathris View Post
The internal resolution on the iPhone didn't change at all actually, because iOS apps can't handle dynamic scaling. Their 960x640 screen is really just 480x320 with 4xAA
You don't happen to have proof of this? I can see that being true for old apps, but apps designed for 960x640 definitely seem to use it. If both the new and the old apps were rendered at the same resolution, you would think someone would have noticed...

Interesting side note. I compared the chromaticity diagram on my pentile galaxy s with a non pentile iPad.Interestingly they both handled the image very much the same, vibrancy aside.
Edited by E_man - 5/16/11 at 2:04am
    
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