logging in or signing up Touch screen trjnhrs Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 486 Category: Science & Tech.. License: All Rights Reserved Like it (0) Dislike it (0) Added: May 04, 2011 This Presentation is Public Favorites: 2 Presentation Description No description available. Comments Posting comment... By: Arul.m (9 month(s) ago) super Saving..... Post Reply Close Saving..... Edit Comment Close By: vivek.neware1990 (9 month(s) ago) hi Saving..... Post Reply Close Saving..... Edit Comment Close By: vivek.neware1990 (9 month(s) ago) hiiiiiiiiiii Saving..... Post Reply Close Saving..... Edit Comment Close By: trjnhrs (10 month(s) ago) thanks Saving..... Post Reply Close Saving..... Edit Comment Close By: basilpeter101 (10 month(s) ago) nice ppt on touch screen Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript Touch screen: Touch screen ::: By: z Introduction: Introduction Touch screen is an electronic visual display which can detect the presence and location of touch within the display area.Slide 3: Types of touch screen technology Resistive Capacitive Surface acoustic wave InfraredResistive: Resistive A resistive touchscreen panel is composed of several layers, the most important of which are two thin, electrically conductive layers separated by a narrow gap. When an object, such as a finger, presses down on a point on the panel's outer surface the two metallic layers become connected at that point: the panel then behaves as a pair of voltage dividers with connected outputs. This causes a change in the electrical current, which is registered as a touch event and sent to the controller for processing.Capacitive: Capacitive A capacitive touchscreen panel is one which consists of an insulator such as glass, coated with a transparent conductor such as indium tin oxide (ITO). As the human body is also a electrical conductor, touching the surface of the screen results in a distortion of the screen's electrostatic field, measurable as a change in capacitance. Different technologies may be used to determine the location of the touch. The location is then sent to the controller for processing.Surface acoustic wave: Surface acoustic wave Surface acoustic wave (SAW) technology uses ultrasonic waves that pass over the touchscreen panel. When the panel is touched, a portion of the wave is absorbed. This change in the ultrasonic waves registers the position of the touch event and sends this information to the controller for processing. Surface wave touch screen panels can be damaged by outside elements.Infrared : Infrared An infrared touchscreen uses an array of X-Y infrared LED and photodetector pairs around the edges of the screen to detect a disruption in the pattern of LED beams. These LED beams cross each other in vertical and horizontal patterns. This helps the sensors pick up the exact location of the touch. A major benefit of such a system is that it can detect essentially any input including a finger, gloved finger, stylus or pen.Applications: Applications ATMs Public Access Kiosks Phones Computers Gaming machines Point of Sale Industrial controls Hand held electronicsTypical Applications: Typical Applications Consumer Electronics Phones PDA’s Digital Cameras GPS etcSlide 10: Comparision between different touch technologiesSlide 11: Questions???Slide 12: I hope this presentation was useful for you. If you have any further questions, please feel free to contact me on : THANK U You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
Touch screen trjnhrs Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 486 Category: Science & Tech.. License: All Rights Reserved Like it (0) Dislike it (0) Added: May 04, 2011 This Presentation is Public Favorites: 2 Presentation Description No description available. Comments Posting comment... By: Arul.m (9 month(s) ago) super Saving..... Post Reply Close Saving..... Edit Comment Close By: vivek.neware1990 (9 month(s) ago) hi Saving..... Post Reply Close Saving..... Edit Comment Close By: vivek.neware1990 (9 month(s) ago) hiiiiiiiiiii Saving..... Post Reply Close Saving..... Edit Comment Close By: trjnhrs (10 month(s) ago) thanks Saving..... Post Reply Close Saving..... Edit Comment Close By: basilpeter101 (10 month(s) ago) nice ppt on touch screen Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript Touch screen: Touch screen ::: By: z Introduction: Introduction Touch screen is an electronic visual display which can detect the presence and location of touch within the display area.Slide 3: Types of touch screen technology Resistive Capacitive Surface acoustic wave InfraredResistive: Resistive A resistive touchscreen panel is composed of several layers, the most important of which are two thin, electrically conductive layers separated by a narrow gap. When an object, such as a finger, presses down on a point on the panel's outer surface the two metallic layers become connected at that point: the panel then behaves as a pair of voltage dividers with connected outputs. This causes a change in the electrical current, which is registered as a touch event and sent to the controller for processing.Capacitive: Capacitive A capacitive touchscreen panel is one which consists of an insulator such as glass, coated with a transparent conductor such as indium tin oxide (ITO). As the human body is also a electrical conductor, touching the surface of the screen results in a distortion of the screen's electrostatic field, measurable as a change in capacitance. Different technologies may be used to determine the location of the touch. The location is then sent to the controller for processing.Surface acoustic wave: Surface acoustic wave Surface acoustic wave (SAW) technology uses ultrasonic waves that pass over the touchscreen panel. When the panel is touched, a portion of the wave is absorbed. This change in the ultrasonic waves registers the position of the touch event and sends this information to the controller for processing. Surface wave touch screen panels can be damaged by outside elements.Infrared : Infrared An infrared touchscreen uses an array of X-Y infrared LED and photodetector pairs around the edges of the screen to detect a disruption in the pattern of LED beams. These LED beams cross each other in vertical and horizontal patterns. This helps the sensors pick up the exact location of the touch. A major benefit of such a system is that it can detect essentially any input including a finger, gloved finger, stylus or pen.Applications: Applications ATMs Public Access Kiosks Phones Computers Gaming machines Point of Sale Industrial controls Hand held electronicsTypical Applications: Typical Applications Consumer Electronics Phones PDA’s Digital Cameras GPS etcSlide 10: Comparision between different touch technologiesSlide 11: Questions???Slide 12: I hope this presentation was useful for you. If you have any further questions, please feel free to contact me on : THANK U