Thread: Is Sony PRS 950 screen fragile?
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Old 04-08-2011, 04:45 AM   #4
simulacrum
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Join Date: Nov 2010
Location: The desert of the real
Device: PRS-950
Quote:
Originally Posted by pj123 View Post
I previously owned two Wacom touch screen ereaders. The screens were super fragile and got damaged within 2 months. Sony PRS 950 apparently uses a different type of screen. Is Sony screen more robust than the Wacom touch screen ?
Short answer: No more sensitive than any other e-ink reader.

Slightly longer answer:
Normal touchscreens use a capacitive or resistive layer on top of the screen which is transparent and probably made of glass or some other easily broken material.

The x50 series of readers there is no extra layer on top of the standard e-ink screen. As I understand it touch recognition in the x50 Sony readers works by having an array of infrared LEDs along in the body of the device itself along a vertical and a horizontal edge of the screen, with receivers in the opposite edges. When your finger touches the screen it interrupts the "grid" of infrared beams and the device figures out the coordinates of the point where the light was interrupted and registers it as a "touch".
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