MobileRead Forums - View Single Post - PRS-650 Touch screen sensibility and screen protector

Analogus · 09-16-2011, 05:09 AM

An idea concerning reasons for not working protector:

So far as I know, the touch-screen uses another technology than Ipad & Co. Infrared rays are running just above the surface to track where you touch with fingers. So "touching" (pushing) isn't necessary at all, just to be on the right place.

I guess, the protector sheet ist TOO HIGH (THICK) and is blocking the IR-rays.

A.

Edit: oh, dwanthny has been faster....

09-16-2011, 05:09 AM	#3
Analogus Fanatic Posts: 568 Karma: 2170348 Join Date: Apr 2011 Device: 2x Sony PRS-350; PRS-300 (†), Paperwhite (†), Voyage	An idea concerning reasons for not working protector: So far as I know, the touch-screen uses another technology than Ipad & Co. Infrared rays are running just above the surface to track where you touch with fingers. So "touching" (pushing) isn't necessary at all, just to be on the right place. I guess, the protector sheet ist TOO HIGH (THICK) and is blocking the IR-rays. A. Edit: oh, dwanthny has been faster....