Modern Display Technologies

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Welcome
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Modern Display Technologies
It is technology which is used as an output
device for the presentation of visual
information. For eg Color CRT Monitors Flat
panel display Kiosk
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Color CRT Monitors

• A CRT Monitor displays color pictures by using a
  combination of phosphors that emits different
  colored light namely Red, Green and Blue.
• The two basic techniques for producing color
  displays with a CRT are
• Beam Penetration Method
• 2. Shadow Mask Method

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CRT
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Beam Penetration Method
In Beam Penetration Method, there are two layers
of phosphorus usually Red And Green are coated
inside of the CRT Screen and the displayed color
depends on how far the electron beam penetrates
into phosphor layer
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Shadow Mask Method
A Shadow mask CRT has the phosphorus color dots
at each pixel position. One phosphor dot emits a
RED light, another emits GREEN light and third
emits a BLUE light.
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Flat Panel Display

• The term Flat Panel Display refers to class of
  display devices that have reduced volume, weight
  and power requirement as compared to a CRT.
• Flat panel display is divided into two parts
• 1. Emissive Display
• Plasma Panel and LED
• 2. Non-Emissive Display
• LCD

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Plasma Panel Display
Plasma is a state of matter containing no. of
eclectically charged particles. In plasma with an
electrical current passing through it, -ve
charged particles rush toward ve charged area of
plasma and ve charge particles are rush towards
the ve charge area. In this mad rush particle
collide with each other and light is produced.
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Liquid Crystal Display (LCD)
LCD consume less power than LED because they work
on the principle of blocking light rather than
emitting it. LCD address each pixel individually,
they can create sharper text CRTs
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Light Emitting Diode(LED)
Modern electronics relies heavily upon LED light
bulbs. The simplicity and long life of the LED
make its use for various technological
applications.
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Kiosk
A kiosk is a small physical structure (often
including a computer and a display screen) that
displays information for people walking by.
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Query
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Thank You Have a nice day