Television Development
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
Outline
1. What is television?
2. Television Types
3. Mechanical television introduction
4. Electronic television introduction
5. Configuration of CRT
6. Color television introduction
7. Cathode Ray Tube
8. TFT-LCD introduction
9. WHAT IS PLASMA？
10.PDP Basic Structure
11.AC-PDP The basic light emitting principle and structure
12.Comparing Figure
13.Application
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
Television Types
Mechanical television
tradition
Electronic television
color television
television
LCD television
Modern
Plasma television
Mechanical television
Paul Gottlieb Nipkow
Electronic television
Valdimir Zworykin
Configuration
of 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
color television
Cathode Ray Tube
1.
2.
3.
4.
5.
6.
electron gun
electron beam
Focusing coil
Bias coil
Anode contact
Electron beam mask separate color
regions
7. Yingguang Mu were red, green and blue
fluorescent agent partition coating
8. The amplification of color Ying Guangmu
medial Figure
TFT-LCD Process
TFT-LCD Element
•
•
•
•
•
•
1.BACK LIGHT
2.DOWN POLARIZER
3.TFT SUBSTRATE
4.LIQUID CRYSTAL
5.COLOR FILTER
6.UP POLARIZER
TFT-LCD Principle
LIGHT
Filter light
LCD
Deformation
Superficial
discoloration
Filter light
TFT-LCD Characteristic
•
•
•
•
•
Slim and light
Low power consumption
No radiation hazard
Plane rectangular display
Image stabilization
WHAT IS PLASMA？
PDP Basic Structure
Front
glass
The dielectric layer
The electricity
address electrodes
Electrode X
Y
Plate glass
Protective
film
Fluorescent
powder
Partition wall
AC-PDP The basic light emitting
principle and structure
Gas
discharge
PLASM
A
UV
Front glass
substrate
Stimulate phosphor
imaging display.
Visible light
Electrode
UV
UV
UV
Dielectric
layer
MGO
A rear glass
substrate
PDP/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
Comparing Figure
Species
tradition
LCD
Plasma
Quality
Poor
Reaction is slow, there will be
residual shadow-like images
quickly convert (now the
technology has overcome the
problem
Fast response and
good quality
Amount of
radiation
High
zero
low
Sound
2 channe
5.1 channel
5.1 channel
Screen ratio
4：3
16：9
16：9
Price
Lower
medium
High
Volume
Big
Small
Small
Power
consumption
High
Lower
Medium
Future trends
Eliminate
Lower prices, large size
large size
Application
Large-size
(30~300 Inch)
PDP、TFT LCD
Rear projection
display
TV
medium size
(8.4~30 Inch)
TFT LCD
Small size
(8.4 Inch below)
TFT LCD、OLED
VFD、LTPS
E-book
PDA
phone
LCDmonitor
NBPC
References
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/2010/11/2010111311471
836.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
Thanks for your attention