Presentation

Working of Touchscreen

on

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Points to Discuss

HOW IT WORKS ?

TOUCH SCREEN DIVERSITY

CONTROLERS USED

APPLICATIONS

CLOSING THOUGHTS

INTRODUCTION TO THE TECHNOLOGY

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Introduction A touch screen is computer display screen that is sensitive to

human touch. The display screen has a sensitive glass overlay placed on it

and we could give the desired input by touching it. A touch screen kit includes a touch screen panel, a controller

and a software driver. Internal touch screen kits are available but require

professional installation because the must be installed inside the monitors.

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Example of Touchscreen

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Working of TouchscreenMain Components : -

Touch Sensor Controller Drivers

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Touch SensorA touch screen sensor is a clear glass panel with a touch responsive surface

The sensor generally has an electrical current or signal going through it and touching the screen causes a voltage or signal change

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ControllerThe controller is a small PC card that connects between the touch sensor and the PC

The controller determines what type of interface/connection you will need on the PC

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DriversThe driver is a software that allows the touch screen and computer to work together

Most touch screen drivers today are a mouse-emulation type driver.

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Diagram showing How it Works

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* Resistive Touch Screen* Capacitive Touch Screen* Surface Acoustic Wave Touchscreen* Infrared Touch Screen

Types of Touch Screen Technologies:

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Resistive Touch Screenhttp://ambeelectronics.com/

Capacitive Touch Screenhttp://ambeelectronics.com/

Surface Acoustic Wave Touchscreenhttp://ambeelectronics.com/

Infrared Touch Screenhttp://ambeelectronics.com/

Public Information Displays::: Tourism displays, Trade show display

Customer Self-Services::: Stores, Restaurants, ATMs, Airline ticket terminals and Transportation hubs.

More uses... Digital jukeboxes, Computerized gaming, Student Registration systems, Multimedia software , Scientific applications etc.

Applications

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Direct pointing to the objects.

FastFinger or pen is usable (No cable required)

No keyboard necessary

Suited to: novices, application for information retrieval etc

Low precision by using finger

User has to sit or stand closer to the screen

The screen may be covered more by using hand

No direct activation to the selected function

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Though the touch screen technology contains some limitations it’s very user friendly, fast, accurate, easy for the novices & fun to operate. It has been widely accepted. And now by just modifying a little it can replace the mouse and key board completely in near future

Conclusionhttp://ambeelectronics.com/

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