发明名称 Optical shuttered touchscreen and method therefor
摘要 A touchscreen display system (418) is provided which includes a touchscreen (420), a touchscreen input detector (422), a capacitive sensor driver (423), and a display driver (424). The touchscreen input detector (422) is coupled to a first layer (504) of the touchscreen (420) and determines a touchscreen (420) input in response to sensing tactile inputs during a sensing time interval (610). The display driver (424) is coupled to a second layer (506) of the touchscreen (420) and provides a drive voltage (606, 608) at a first voltage level to the plurality of optical shutter segments (508) during a first portion (620) of the sensing time interval (610) and maintains the drive voltage (606, 608) at substantially zero volts during a second portion (622) of the sensing time interval (610), the second portion (622) being greater than half of the sensing time interval (610).
申请公布号 US7755615(B2) 申请公布日期 2010.07.13
申请号 US20060611970 申请日期 2006.12.18
申请人 MOTOROLA, INC. 发明人 FOO KEN K;KAEHLER JOHN W;YU PINKY
分类号 G06F3/041 主分类号 G06F3/041
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