television development
DESCRIPTION
Advisor : Ru-Li Lin Advisee : Kai-Chieh Chang Chun-Wei Hsu Department of Mechanical Engineering Southern Taiwan University of Science and Technology, Tainan, TAIWAN Date ﹕2010/03/18. Television Development. Outline. What is television? Television Types - PowerPoint PPT PresentationTRANSCRIPT
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Television DevelopmentAdvisor : Ru-Li Lin
Advisee : Kai-Chieh Chang
Chun-Wei Hsu
•Department of Mechanical Engineering •Southern Taiwan University of Science and Technology, Tainan, TAIWAN
Date 2010/03/18﹕
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OutlineOutline1.1. What is television?What is television?2.2. Television TypesTelevision Types3.3. Mechanical television introductionMechanical television introduction4.4. Electronic television introductionElectronic television introduction5.5. Configuration of CRTConfiguration of CRT6.6. Color television introductionColor television introduction7.7. Cathode Ray TubeCathode Ray Tube8.8. TFT-LCD introductionTFT-LCD introduction9.9. WHAT IS PLASMAWHAT IS PLASMA ??10.10.PDP Basic StructurePDP Basic Structure11.11.AC-PDP The basic light emitting principle and structureAC-PDP The basic light emitting principle and structure12.12.Comparing FigureComparing Figure13.13.ApplicationApplication
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What is television?What is television?Continuous, dynamic image and sound is converted to electrical signals and transmit electronic signals through various channels, and then the electronic signal restored image and sound technology.
Means to receive this electronic signaling device, which can receive and restore the electronic signal is active, a continuous means of images and sound, commonly referred to TV.
影片網址 :http://www.youtube.com/watch?v=PRcdr1A-cgQ
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Television TypesTelevision Types
televisiontelevision
traditiontradition
ModernModern
Mechanical televisionMechanical television
Electronic televisionElectronic television
color televisioncolor television
LCD televisionLCD television
Plasma televisionPlasma television
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Mechanical televisionMechanical television
Paul Gottlieb Nipkow
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Electronic televisionElectronic television
Valdimir Zworykin
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Configuration Configuration of CRTof CRT
• CRT consists of 6 sections:
1. Glass bulb evacuated to a high vacuum
2. Cathode (a source of electrons)
3. Cathode heater
4. Electrodes for brightness and focus control, several accelerating anodes
5. Pairs of horizontal and vertical capacitor plates deviating the electron beam
6. Fluorescing screen
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color televisioncolor television
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1. electron gun2. electron beam3. Focusing coil4. Bias coil5. Anode contact6. Electron beam mask separate color
regions7. Yingguang Mu were red, green and blue
fluorescent agent partition coating8. The amplification of color Ying Guangmu
medial Figure
Cathode Ray TubeCathode Ray Tube
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TFT-LCD ProcessTFT-LCD Process
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TFT-LCD ElementTFT-LCD Element
• 1.BACK LIGHT• 2.DOWN POLARIZER• 3.TFT SUBSTRATE• 4.LIQUID CRYSTAL• 5.COLOR FILTER• 6.UP POLARIZER
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TFT-LCD PrincipleTFT-LCD Principle
LIGHT
LCD Deformation
Filter light
Filter light
Superficial discoloration
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TFT-LCD CharacteristicTFT-LCD Characteristic
• Slim and light
• Low power consumption
• No radiation hazard
• Plane rectangular display
• Image stabilization
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WHAT IS PLASMAWHAT IS PLASMA ??
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PDP Basic StructurePDP Basic StructureFront glass
Electrode X Y
Protective film
Fluorescent powder
Partition wall
Plate glass
The electricity address electrodes
The dielectric layer
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AC-PDP The basic light emitting AC-PDP The basic light emitting principle and structureprinciple and structure
UV UV UV
Front glass substrate
A rear glass substrate
Electrode
MGO
Dielectric layer
Visible light
Gas discharge
PLASMA
UV Stimulate phosphor imaging display.
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PDP/LCD ComparePDP/LCD Compare
Feature PDP LCD
Screen size 42’’ ~ 103’’ 2’’ ~ 82’’
82’’THIN GOOD GOOD
Perspective GOOD GOOD
Radiations.For NON NON
Brightness/Contrast
GOOD POOR
Resolution MID HIGH
Image Blurring NON BLURRING
Price HIGHER HIGHER
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Comparing FigureComparing Figure
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ApplicationApplication
PDA phone
E-book LCD-monitor
NBPC
Rear projection display
TV
Small size(8.4 Inch below)TFT LCD 、 OLEDVFD 、 LTPS
medium size(8.4~30 Inch)TFT LCD
Large-size(30~300 Inch)PDP 、 TFT LCD
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ReferencesReferences
http://content.edu.tw/junior/life_tech/tc_jr/student/course/102/02source06.htm
http://zh.wikipedia.org/wiki/%E7%94%B5%E8%A7%86#.E5.8E.86.E5.8F.B2
http://www.shs.edu.tw/works/essay/2010/11/2010111311471836.pdf
http://www2.wunan.com.tw/download/preview/5db0.pdf
http://pel.che.kuas.edu.tw/7-2.2.htm
http://www.auo.com/?sn=47&lang=zh-TW
http://web.ncue.edu.tw/~ccource/data/38.pdf
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Thanks for your attention