MODELING PIEZOS FOR MINIMIZED POWER CONSUMPTION AND MAXIMIZED TACTILE DETECTION ON A HAPTIC DISPLAY
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United States of America Patent
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Issued Date -
Dec 19, 2013
app pub date -
May 24, 2013
filing date -
May 25, 2012
priority date (Note) -
Abandoned
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Abstract
A haptic display with a touch screen surface enabled to be tactically detectable by the addition of a thin-film piezo stimulator thereto is disclosed. A modeling for minimized power consumption and a maximized tactile detection on the display is also disclosed. The haptic screen, during operation of a touch screen, enables a user to have a haptic interaction with the screen through vibrations generated on the touch surface. A piezo placement model enables to achieve vibrations of specific values at each spot on the screen where the user touches, through the use of a minimum number of piezo components of the screen so as to provide an optimum tactile detection and minimum power consumption. Pre-defined values of amplitude and frequency are applied to ensure that the vibration is detected in accordance with the placement model and pre-defined values of the placement model are used depending on the position of touch.
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