Can I use the touch screen for hand-writing recognition or for capturing signatures?
Yes. There are two ways of doing this. One is to employ a touch screen with a Resistive sensor (see Technologies comparison) and use a blunt stylus, as found with PDAs, to write on the screen. However, there is usually some “lag” in that the signature on the screen will appear slower than the writing speed. If hand-writing input is a primary function of the touch screen, a better solution is to use a hard-wired touch pen (see TouchPen). Alternatively, the large format touch panels use an optical technology that also supports input from a stylus. (see Large Format Touch Screens).