Display systems

 INTRODUCTION  TECHNIQUE BEHIND DISPLAY SYSTEMS  CLASSIFICATION OF DISPLAYING DEVICES  TYPES OF DISPLAY SYSTEMS  CONCLUSION contents

 Display systems are the focal point of any human-machine interface.  It is an Essential Component.  Applications  The role of electronic displays is becoming increasingly crucial consumer electronics, Information processing, Entertainment, Intelligent offices/homes. Introduction

 Conversion of electronic signals to specific location.  Adjust images to the color.  Direct view enable user to view screen directly.  By using Optical devices magnifies and displays on larger screen. TECHNIQUE BEHIND DISPLAY SYSTEMS

CLASSIFICATION OF DISPLAYING DEVICES Light emitting devices eg : CRT’S, electro luminescent (EL), vacuum fluorescents displays (VFD’S) Non Light emitting devices eg : liquid crystal displays (LCD’s) and electro chromic displays (ECD’s)

TYPES TOUCH SCREEN LASER IMAGING ORGANIC EL DISPLAY LCD’S VFD’S POLYSTER PANELS 3D DISPLAYS OPTICAL FIBERS

TOUCH SCREEN DISPLAYS

 Touch Screen is a input device  Shonkh Technologies developed information with LCD/CRT touch screens  Working it includes touch sensor (to receive), electronic controller (convert i/p to conv. Bus protocol )& software driver (to convert the bus information to cursor action), and system utilities.  Applications - ATMs, and casino gaming

LASER IMAGING

 A German company has developed laser imaging Technology  Laser beams travel over the screen  These provide clear, non-reversed images on the screens of any size  It is high speed photograpy  Laser can be formatted into a thin sheet of light

 This is emitting their own light also provide wide view angles  Quick response speed  Researchers in Japan with compounds having low molecular weights, developed element technologies necessary to create organic EL displays. They brought out an organic EL display for car radios  These use fluorescent organic compounds as Luminescent materials ORGANIC EL DISPLAY

 LCD Stands for Liquid Crystal Display  Manipulates existing light to produce an image where as CRT, plasma emit light.  Color Display  Advantages - widespread use of notebook computers  drawbacks LCD’s

 VFD stands for vacuum fluorescents displays  Invented in 1966  It is a chip  It is multi color display  Applications – telecom, medical, home appliances, vending machines, point of sale VFD’s

 Introduction - Researchers have developed thin- film transistor displays out of polyethylene terephthalate thin, flexible and rugged plastic can be rolled up, folded, or bent it practically any shape desired Applications Applications notebooks,video-games,non-conventional displays. notebooks,video-games,non-conventional displays. POLYSTER PANALS

ADVANTAGES ► digital watches ► finger tops ► palmtops, laptops ► mobile phones ► digital cameras ► PC monitors, and TV’s

The display field is vast. Newer display technologies continue to evolve, in synchronism with modern-day convergence devices. The general awareness and knowledge about display systems are on a lower level. In order improve develop effective, efficient display systems.