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Ppt on flat panel display
 

Ppt on flat panel display

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    Ppt on flat panel display Ppt on flat panel display Presentation Transcript

    • Group members Alisha Korpal Nivia Jain Sharuti Jain
      • A video display device is a device for visual or tactile presentation of images(including text) acquired, stored, or transmitted in various forms .
      • CRT
      • Flat panel Displays
      • The cathode ray tube (CRT) is a vacuum tube containing an electron gun (a source of electrons) and a fluorescent screen, with internal or external means to accelerate and deflect the electron beam, used to create images in the form of light emitted from the fluorescent screen. 
    •  
      • A single electron gun for a single color monitor
      • Phosphorus screen
      • High dynamic range
      • excellent color
      • The color range of CRTs is unmatched by any display type except OLED
      • Can display in almost any resolution and refresh rate
      • Sub-millisecond response times
      • Large size and weight
      • High power consumption
      • Generates high of heat
      • Can suffer screen burn-in
      • Produces noticeable flicker at low refresh rates
      • A class of video devices that have reduced volume , weight & power requirement than refresh CRT.
      • Currently they are used in pocket videos , laptop etc.
      • Emissive displays
          • Plasma panels
          • Electroluminescent displays
      • Non emissive displays
          • LCD
      • Emissive display are device that convert electrical energy into light
      • Image is directly produced on the screen
      • Phosphorus convert electron beam or UV light into visible light.
      • Light is produced behind the screen and the image is formed by filtering this light.
      • Liquid Crystal Display
      • Portable
      • Less desk space
      • Lack of flicker and low glare reduce eyestrain.
      • A liquid crystal is an organic compound in a transition state between liquid and solid forms that resemble a liquid.
    •  
      • Lightweight construction
      • Thin panels
      • Low energy consumption
      • Quality of image depends on viewing angle
      • Low response times
      • A plasma display panel (PDP) is a type of flat panel display.
      • They are called "plasma" displays
      • Technology utilizes small cells containing electrically charged ionized gases commonly known as fluorescent lamps .
      • Large displays
      • Good color rendering
      • Thin panels
      • No dependence on viewing angle
      • Brightness
      • High costs
      • Power consumption
    •