Touch sensitive display device
First Claim
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1. A touch sensitive display device comprising a multiple of picture elements and means for driving at least one of said picture elements together with means for monitoring the impedance of at least one of said picture elements and substantially simultaneously sensing a change in said impedance.
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Abstract
In a touch sensor the change in pixel impedance is measured from the sensing area directly (passive matrix) or through the address transistors (AMLCD) associated with the sensing area.
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15 Claims
- 1. A touch sensitive display device comprising a multiple of picture elements and means for driving at least one of said picture elements together with means for monitoring the impedance of at least one of said picture elements and substantially simultaneously sensing a change in said impedance.
Specification