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Old 04-27-2013, 10:14 AM   #10
Dulin's Books
Wizard
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Quote:
Originally Posted by pl001 View Post
So the new "unbreakable" screen is....plastic? That is interesting, but I don't know if it's progress. Although I suppose the plastic screen on my old Palm Centro was pretty durable, it never scratched.
The Centro had a regular glass transflective tft lcd typical for Palm and others in 2007. It was not plastic. The resistive touch layer above the display was plastic.

Nobody has yet made a plastic lcd screen in a consumer product. The only plastic display retailed to date is the eink one in the Wexler ereader http://www.the-digital-reader.com/20...ereader-video/

Quote:
Originally Posted by pl001 View Post
The glass is there today because it resists scratching a lot better than plastic. Which is why I'm a bit skeptical on this. Will flexible plastic be more scratch-resistant than hard plastic? I have my doubts.

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The glass is there today because of technical limitations and production limitations. Nobody until very recently has shown the ability to produce flexible displays in yield high enough to make it "cost effective". Previously, only two companies could do roll to roll production with plastic tfts and plastic display materials and they are both using eink(one technically doesn't exist now). of course cost effective is a relative term, check the price of the wexler.

What others have resorted to because of temperature differences in the production of glass versus plastic is first produce the tft back plane on glass and then delaminate it from the glass and meld it with the plastic display material. off course that destroys the glass and the delamination process leads to defective tft's lowering overall yield. both of those drive up cost.

edit- SiPix's process was roll to roll also but their yield was horrible which pretty much ensured the dominance of Eink in the electronic paper market for anything over the size of shelf signage.

Last edited by Dulin's Books; 04-27-2013 at 10:44 AM.
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