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Overvierw of Touch Screen

  • Date Submitted: 06/26/2012 09:26 AM
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OVERVIEW OF TOUCH SCREEN
S.AMRISH
Department Of Computer Engineering
Suguna Polytechnic College
e-mail : amrish.91@gmail.com

|Introduction                                                                         |                                                                                 |
|A touchscreen is a display which can detect the presence and location of a touch     |the user vacuum deposited transparent conductors serve as primary sensing         |
|within the display area. The term¬†generally¬†refers to touch or contact to the display|element. Vacuum coated layers can account for a significant fraction of touch     |
|of the device by a finger or hand. Touchscreens can also sense other passive objects,|system cost. Cost & application parameters are chief criteria for determining the|
|such as a stylus. However, if the object sensed is active, as with a light pen, the   |appropriate type determining the system selection. Primarily, the touch system   |
|term touchscreen is generally not applicable. The ability to interact directly with a|integrator must determine with what implement the user will touch the sensor with|
|display typically indicates the presence of a touchscreen.                           |& what price the application will support.                                       |
|                                                                                     |Applications requiring activation by a gloved finger or arbitrary stylus such as |
|[pic]                                                                                 |a plastic pen will specify either a low cost resistive based sensor or a higher   |
|A touchscreen is an easy to use input device that allows users to control PC software|cost infra-red (IR) or surface acoustic wave (SAW) system. Applications           |
|and DVD video by touching the display screen.                                         |anticipating bare finger input or amenable to a tethered pen comprises...

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