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Old 09-04-2012, 03:43 PM   #66
derangedhermit
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Posts: 239
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Join Date: Oct 2010
Location: USA
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Quote:
Originally Posted by DarkScribe View Post
An offset press at maximum resolution needs a high quality (and much more expensive) paper to be effective. A good magazine will provide such quality, but a newspaper or a conventional paperback book won't. Grab yourself a jeweler's loupe and compare a paperback novel to the output of a 300dpi Laser. (Though most nowadays are 600 or better.) The resolution from eInk won't match a photograph, but it effectively matches a mass produced book.

When you think about it, although a current iPad's Retina screen is quite effective, most WEB sites still use 72 DPI for graphics. [irrelevant 3D stuff deleted]
Logic and/or factual errors:
300 dpi /= eInk
mass produced book /= pulp paperbacks
web IMAGES /= eInk (or web) font TEXT

Again, e-reader screens would be substantially better if they had:
- higher resolution (dpi); doubling the linear resolution from 167 dpi (Pearl 6") to 334 dpi would be fine.
- higher contrast (currently only 10:1 for Pearl); deep black on glossy paper can be 300:1; 100:1 on eInk would be very nice. 10:1 is too low for too many viewing conditions.
- 256 gray levels instead of 16 (useful for both text and graphics)
- faster page turns; I don't know if this is a problem with the display itself or the software. The 800MHz TI OMAP processor in the Nook ST is fast enough, if it has enough RAM to lay out the next page ahead of time.

On the color and brightness of light issue, I encourage everyone to have a look at http://stereopsis.com/flux/ (from the guy who wrote Picasa, purchased by Google). That is a nice little utility for a PC/iPad/iPhone used at night. Blue light keeps you awake more than redder light. Even the LEDs in the Nook STG should have more yellow, green, and red, and less blue. "White" LEDs are not good for use at night, they have too much blue.
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