seminar code
04-08-2014, 02:49 PM
Touchscreen Technology
[attachment=66569]
Introduction
A touchscreen is an easy to use input device that allows users to control PC software and DVD video by touching the display screen.
A touch system consists of a touch Sensor that receives the touch input, a Controller, and a Driver
How does touchscreen works?
A basic touchscreen has three main components: a touch sensor, a controller, and a software driver.
The touchscreen is an input device, so it needs to be combined with a display and a PC or other device to make a complete touch input system.
Touch Technologies
Each type of screen has unique characteristics that can make it a better choice for certain applications.
The most widely used touchscreen technologies are the following:
Surface Acoustic Wave
Pen Touch Capacitive Touchscreens
Acoustic pulse recognition
Infrared Touchscreens
Disadvntages
User’s hand may obscure the screen.
Usually no discretion between stylus and hand.
Multi-touch much more complex.
Some reduction in image brightness may occur.
They cost more than alternative devices.
Conclusion
Today, touch screens have been adopted by computer users of all abilities because it is simple, fast and innovative.
The majority of touch systems include touch sensors relying on vacuum-deposited coatings, so touch coatings present opportunity for suppliers of vacuum coatings and coating equipments.
[attachment=66569]
Introduction
A touchscreen is an easy to use input device that allows users to control PC software and DVD video by touching the display screen.
A touch system consists of a touch Sensor that receives the touch input, a Controller, and a Driver
How does touchscreen works?
A basic touchscreen has three main components: a touch sensor, a controller, and a software driver.
The touchscreen is an input device, so it needs to be combined with a display and a PC or other device to make a complete touch input system.
Touch Technologies
Each type of screen has unique characteristics that can make it a better choice for certain applications.
The most widely used touchscreen technologies are the following:
Surface Acoustic Wave
Pen Touch Capacitive Touchscreens
Acoustic pulse recognition
Infrared Touchscreens
Disadvntages
User’s hand may obscure the screen.
Usually no discretion between stylus and hand.
Multi-touch much more complex.
Some reduction in image brightness may occur.
They cost more than alternative devices.
Conclusion
Today, touch screens have been adopted by computer users of all abilities because it is simple, fast and innovative.
The majority of touch systems include touch sensors relying on vacuum-deposited coatings, so touch coatings present opportunity for suppliers of vacuum coatings and coating equipments.