Touch panels - input and output devices, Computer Graphics

Touch Panels - Input and output devices

It allows displayed screen or object positions to be selected along with the touch of the finger and is also termed as Touch Sensitive Screens i.e. TSS also. A usual application of touch panels is for the selection of processing options which are represented along with graphical icons. Touch input can be recorded by utilizing optical acoustical or electrical methods.

Optical touch panels utilize a line of intra red LEDS that is light emitting diodes, along one vertical edge and beside one horizontal edge of frame. The opposite horizontal and vertical edges include light detection. These detections are utilized to record the beams that may have been interrupted while the panel was touched. Two crossing beams which are interrupted classify the horizontal and vertical coordinates of screen position chosen.

An electrical touch panel is assembled with two transparent plates separated through a short distance. One of the plates is coated along with a conducting material and another is resistive material.  While the outer plate is touched, this is forced into relation with the inner plate. The contact makes a voltage drop which is converted to a match value of the chosen screen position. They are not too dependable or accurate, although are easy to utilize.

Posted Date: 4/2/2013 6:41:28 AM | Location : United States







Related Discussions:- Touch panels - input and output devices, Assignment Help, Ask Question on Touch panels - input and output devices, Get Answer, Expert's Help, Touch panels - input and output devices Discussions

Write discussion on Touch panels - input and output devices
Your posts are moderated
Related Questions
What are the features of Inkjet printers?  They can print 2 to 4 pages/minutes. Resolution is about 360d.p.i. Thus better print quality is achieved. The operating

Objectives  of Three dimensional transformations explain basic 3D transformations-translation, rotation, scaling, shear and reflections-applied to objects in space; ex

Hue and Saturation: A light source produced by a sun or electric bulb emits all frequencies within the visible range to give white light. When this light is incident upon an objec

Construction of an Isometric Projection - Transformation In this projection, the direction of projection i.e. d = (d 1 ,d 2 ,d 3 ) makes an identical angles with all the 3-pr

Applications that can handle Bitmap Data Hundreds of applications are there in the market which can be used to modify or make bitmap data. For illustration: Adobe Photo Shop, C

Q.  Write a short note on area subdivision method for hidden surface removal.   Ans. Area Subdivision This technique for hidden- surface removal is essentially an image- spac

Consequently some methods are utilized to handle this huge information and these methods are termed as animation process that are classified as: First Method: In this method,

Multimedia Entertainment: The field of entertainment uses multimedia extensively. One of the earliest and the most popular applications of multimedia are for games. Multimedi

Geographic Information Systems (GIS): The most generally utilized software is: ArcMap . Characteristics: I.          Works inside a geographic context. II.         Great

how can I draw a flower.