An Intro To Television
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An Intro To Television

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This is Presented By Vishnu, Who s member of KanchiLUG... It is created by Open Office Impress

This is Presented By Vishnu, Who s member of KanchiLUG... It is created by Open Office Impress

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An Intro To Television Presentation Transcript

  • 1. INTRODUCTION TO TELEVISION - K. Vishnu MCA        KanchiLUG Member    
  • 2. Television history was not overnight and not invented by a single inventor.    
  • 3. MECHANICAL TELEVISION    
  • 4. - John Logie Baird (1920)   The idea of using arrays of transparent rods to transmit images for television.    
  • 5. - Charles Francis Jenkins (1923)       Radiovision claimed to have transmitted the earliest moving  silhouette images.    
  • 6. ELECTRONIC TELEVISION CRT    
  • 7. Electronic television is based on the development of the cathode ray tube.    
  • 8. Now it is the picture tube found in modern TV sets.    
  • 9. MAIN INVENTORS OF CRT TELEVISION    
  • 10. Vladimir Kosma Zworykin (1925)    
  • 11. Philo T. Farnsworth (1939)    
  • 12. 1. Glass Tube 2. Electron Gun 3. Electron Beam 4. Upper & Lower Leds 5. Shadow Mask 6. Phosporous Coated Screen    
  • 13.    
  • 14.    
  • 15. LCD TELEVISION    
  • 16. * An LCD TV is a flat panel TV * It based on liquid crystal display * Inter active properties # liquid crystals # light    
  • 17.    
  • 18. * The liquid crystals are broken down into small particles. * These smaller particles are known as pixels. * Crystals are located in the middle of two electrodes.    
  • 19.    
  • 20.    
  • 21.