Touchless Touchscreen Technology

The new era of the touchscreen that we use in our daily life is the Touchless Touchscreen

1. TOUCHLESS TOUCHSCREEN TECHNOLOGY BY R. J. S. KASYAP IV BTECH EEE

2. CONTENTS 1) INCEPTION 2)HISTORY 3)WHAT IS TOUCHSCREEN? 4)TYPES, MERITS & DEMERITS 5)WHY TTT? 6)WORKING 7)GBUI 8)APPLICATIONS 9)MERITS & DEMERITS 10)CONCLUSION

3. INCEPTION What if our lives without touchscreen? 3

4. HISTORY E.A. Johnson of the Royal Radar Establishment, Malvern described his work on capacitive touch screens in a short article Published in 1965 and then more fully—with photographs and diagrams in an article published in 1967. 4

5. WHAT IS A TOUCHSCREEN Touch Screen is an important source of input or output device normally layered on top of an electronic visual device. A user gives the input or control the information processing through single or multi-touch gestures by touching the screen. It enables the user to interact directly with what is displayed, rather than using any intermediate device.

6. TYPES INVOLVED RESISTIVE TOUCHSCREEN Although this system is durable and consistent, they can only handle one touch at a time. That is why high end devices most likely use capacitive touch screens . 6

7. CAPACITIVE TOUCHSCREEN I phones, most mid-range to high ends smart phone, tablets and computers use this system. 7

8. It is the less common and less precise one. It consists of LEDs and Light detecting photocells arranged on the opposite sides of the screen. The LEDs shine infrared light in front of the screen – a bit like an invisible spider’s web. INFRA RED TOUCHSCREENS 8

9. Surface Acoustic Wave (SAW) Touch Screen Ultrasonic sounds which are too high pitched for humans to hear are reflected back and forth across its surface. When the screen is touched the user interrupts the sound beam, and the location of the touch is calculated. 9

10. MERITS Direct pointing to the objects. Fast. Finger or pen is usable (No cable required). No keyboard necessary. Suited to: novices, application for information retrieval etc 10

11. DEMERITS 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. 11

12. INTRODUCTION TO TOUCHLESS TOUCHSCREEN Imagine a world you could control with your hands. It was developed by Elliptic Labs. This system depends on the finger or hand motions, hand wave in certain direction, with this your hand doesn’t have to come in contact with the screen. It requires a sensor, the sensor can be either placed near the screen or on the table. Elliptic Labs named it as “Touch Less Human or Machine User Interface for 3D Navigation”. 12

13. 13 WORKING

14. 14 Place your screenshot here Gesture Based Graphical User Interface (GBUI) Leap motion controller is used to translate hand movements into computer commands.

15. MEANING OF MOTION 15

16. MERITS No drivers required. No de-sensitization of screen. Simple and user friendly. Useful for physically handicapped people. The touch screen interface can be updated with simple software changes 16

17. DEMERITS The only thing is that you must know how to use it. 17

18. SOURCES PROVIDING TTT TOBII REX ELLIPTIC LABS AIR WRITING EYE SIGHT POINT GRAB 18

19. APPLICATIONS The most common applications of any technology are also included here as follows; MEDICAL DEFENCE RESEARCH SPACE WORKS 19 Apart from these, they include in PUBLIC DISPLAYS TECHNOLOGY ASSISTING etc

20. CONCLUSION Touch less Technology is still developing. Today’s thoughts are again around user interface. Efforts are being put to better the technology day-in and day-out.the touch less touch screen user interface can be used effectively in computers, cell phones, webcams and laptops. May be few years down the line, our body can be transformed into a virtual mouse, virtual keyboard and what not? Our body may be turned in to an input device 20

21. THANK YOU ANY QUERIES? 21