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Plasma displaypanel

ToLekhraj

Sharma

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Contents Introduction

Construction

Working principle

Colored plasma display

Contrast ratio

Advantage

Disadvantage

Application

Closing thought

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Introduction

Plasma display panel is a type of flatpanel display ,common to large TV

display (80cm/30 in or larger).

A plasma display is a computer video

display.

Plasma display is based on fluorescenttechnique.

Plasma is a gas.

http://en.wikipedia.org/wiki/File:103inchPlasma.JPG

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Need of PDP

Due to replacing CRT (cathode ray

tube).

Due to replacing LCD(liquid crystal

display).

Due to development in electronicdisplay.

http://en.wikipedia.org/wiki/File:103inchPlasma.JPG

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Construction

Plasma screen is made up of two sheets ofglass.

To make plasma ,xenon and neon gas atoms.

It contains thousands of tiny cells.

these cells are positioned between two glass

plats.

1. Front glass plate

2. Rear glass plate

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Constructionalfigure

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Construction

This setup consist of electrodes.

1. Long electrode

2. Address electrode

3. Transparent display electrode

Behind front glass plate red phosphors, green phosphors and blue phosphors

are placed.

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Working principle Xenon and neon gases atoms having equally

protons & electrons. Appling voltage across it . Due to this positive

charged ions generates in the process of

collision. This releases ultraviolet light , invisible to

human eye.

UV light interact phosphor material and givesvisible light.

Through the pixel colors created on

screen.

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Colored display(PDP)

Colored images on plasma screen canbe obtained by pixel.

Each pixel is made up of three sub

pixel.

These are red,green and blue phosphor.

These pixels blend together to produce16 millions of different colors.

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http://en.wikipedia.org/wiki/File:Plasma-display-composition.svg

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Advantage

Wide screen using extremely thin material.

Display of bright images.

No specific viewing angle .

Batter picture quality.

Clearly display of fast moving images.

Having more pixel than CRT.

Space saving

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Disadvantage

More power consuming than LCD.

Greater cost.

Burn-in effect.

Not good to display AM radio signals.

Affected by air pressure and altitude. Shorter life span(20,000-30,000 hours).

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Application

Home Theater

Network Control Rooms

Meeting Rooms

Executive Offices

Corporate Lobbies

Digital Signage

Touch Screens

Light Weight Monitors

Video Conferencing

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Closing thought

How long they last??? As technology has been made better, Plasma screens have a much

longer life and you should expect 30,000 hours of use. In other words

your television would need to be on for 16 hours a day, every day for

the next 5 years. By the time your TV needs replacing higher

definition models will have become available. Most of us should notbe worried as it will give years of enjoyment

Is it Worth Spending Money On?

When the first Plasma televisions were designed for home use you

didn't get much change from $5000 dollars for a basic small model. Asthe technology has improved and production has increased, prices have

been smaller. You can now get a 37 inch model for as little as $1000 or

even less so they are great value. Soon buying a CRT television will be

a thing of the past as the new digital age is upon us.

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