television development

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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