Patent ID: 7755615
Filing Date: 2010-07-13
Classification: G02F,G06F

Abstract:
1. A touchscreen display system comprising: a touchscreen with a first layer for sensing tactile inputs on a face of the touchscreen and a second layer having a plurality of optical shutter segments; a touchscreen input detector coupled to the first layer and determining a touchscreen input in response to sensing the tactile inputs for a sensing time interval; and a driver coupled to the second layer and providing a drive voltage at a first voltage level to the plurality of optical shutter segments during a first portion of the sensing time interval and maintaining the drive voltage at a second voltage level during a second portion of the sensing time interval, wherein the second voltage level is substantially zero volts, and wherein the first portion appended by the second portion is substantially the sensing time interval, the second portion being greater than half of the sensing time interval.