Touch screen (sem 1)

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  • 1. NAME: FRAZER TAYLORSTD: FYBCOM (D)ROLL NO: C-10: 4437
  • 2. ASSIGNMENT ON “TOUCH SCREEN”
  • 3. WHAT IS A TOUCH SCREEN ?A Touch screen is an electronic visual display that can detect the presence and the location of a touch within the display area. Theterm generally refers to touching the display of the device with a finger or hand.
  • 4. THE TOUCH SCREEN HAS TWO MAINATTRIBUTES First, it enables one to interact directly with what is displayed, rather than indirectly with a cursor controlled by a mouse or touchpad. Secondly, it lets one do so without requiring any intermediate device that would need to be held in the hand. Such displays can be attached to computers, or to networks as terminals.
  • 5. TYPES OF TOUCH SCREEN TECHNOLOGY Resistive Surface wave Capacitive
  • 6. RESISTIVE TECHNOLOGY A resistive touch screen panel is coated with a thin metallic electrically conductive and resistive layer that causes a change in the electric current which is registered as a touch event and sent to the controller for processing. Resistive touch screen panels are generally more affordable but offers only 75%clarity and the layer can be damaged by sharp objects. Resistive touch screen panels are not affected by outside elements such as dust or water.
  • 7. SURFACE WAVE Surface wave technology uses ultrasonic waves that pass over the touch screen panel. When the panel is touched, a portion of the wave is observed. 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 are the most advanced of the three types, but they can be damaged by the outside elements.
  • 8. CAPACITIVE A capacitive touch screen panel is coated with a material that stores electrical charges. When the panel is touched, a small amount of charge is drawn to the point of contact. Circuits located at each corners of the panel measure the charge and sends this information to the controller for processing. Capacitive touch screen panels must be touched with a finger unlike resistive and surface wave panels that can use fingers and stylus. They are not affected by the outside elements.
  • 9. WHAT IS A TOUCH SCREEN USED FOR? Self-Service Check Outs ATM Machines PDAs iPhone Nintendo DS
  • 10. SELF-SERVICE CHECK OUTS Many supermarkets use touch screens to save time for both customers and cashiers. Customers can weigh produce, look up codes, and choose methods of payment from touch screen displays.
  • 11. ATM MACHINES Most ATM machines use touch screen technology. It allows users to input their information. without having to press buttons, which makes ATM use much easier.
  • 12. PDAS PDAs are one of the first popular users of touch screen technology. Todays stand-alone PDAs are used for Internet browsing and media playing, but are declining in usage these days.
  • 13. IPHONE The Apple iPhone uses its touch screen display to provide users with an easy way to navigate. Users can dial, text, listen to music and navigate the Web using the touch screen.
  • 14. NINTENDO DS The Nintendo DS handheld video game system has two display screens, with the lower used for touch screen capabilities. Most of the games are played by using a stylus. Providing a very unique gaming experience.
  • 15.  Big screen is ideal for web browser, picture and movies. Touch screen gadgets usually have single user interfaces, which are more intuitive e.g. iphones. Touch screen devices have fewer buttons that might break after a few months/years of operation.
  • 16.  Screens has to be really big not to miss things when processing them with your finger. Big screens leads to low battery life massive computer power leads to slow devices. Touch screen means screen cant be read too well in direct sunlight as it applies an additional not 100% transparent. Screens get very dirty.
  • 17. USES OF TOUCH SCREENS Public information display: A touch screen can help make your information more easily accessible by allowing users to navigate your presentation by simply touching the display screen. In restaurants system: Touch screen systems are easy to use so employees can get work done faster, and training time can be reduced for new employees. Customer self-service: Customers can quickly place their own orders or check themselves in or out, saving them time, and decreasing wait times for other customers.
  • 18.  Control and Automation Systems :The touch screen interface is useful in systems ranging from industrial process control to home automation. Computer Based Training :It can also help to make learning more fun and interactive, which can lead to a more beneficial training experience for both students and educators. Assistive Technology :The touch screen interface can be beneficial to those that have difficulty using other input devices such as a mouse or keyboard.
  • 19. THE END…….