一篇介绍如何在电阻触摸屏上防止手掌误触的论文，本文介绍的方法或许能对你解决电阻触摸屏的手掌误触有一定的帮助作用。

Have you ever used a device such as a webpad and had the cursor jump around or disappear under your hand as you tried to write something on the screen? If so, you’ve experienced a lack of palm rejection.

Palm rejection allows a user to rest their hand or other object on a touchscreen without activating it. Palm rejection is usually significant only in devices with screens larger than about four inches, since with smaller screens the user’s hand rests mostly on the screen bezel. It’s also usually significant only in devices that are intended to be used with a pen or stylus, since if a device is meant to be used only with pure finger-touch, there’s no reason for the user to rest their hand on the screen.

Palm rejection isn’t really about your palm; it’s about the part of your hand that pokes the writing surface when you hold a pen. For some people, it’s the skin protrusion resulting from the creases on the edge of your hand; for others, it’s the knuckles on your little finger. Both of these are relatively sharp points that act like a finger-touch.

Resistive touchscreens can’t handle multiple touches, so the cursor goes somewhere other than where it should be.

How common is poor palm rejection? Unfortunately, it’s very common. It seems as though almost every pen tablet created in the last five years has had poor palm rejection (Tablet PCs don’t count, since they use active electromagnetic digitizers rather than touchscreens). Hardware OEMs just don’t seem to think about this issue during design, and the touchscreen vendors contribute by minimizing the issue or appearing uninterested in doing the required customization.