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LCD Monitor -What is LCD Monitor? -How LCD Monitors work? -Why LCD Monitors? -Comparing with CRT Monitors -So, CRT or LCD What is LCD Monitor? LCD Monitor is a kind of monitor using Liquid Crystal to glow red, green and blue.

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lcd monitor

LCD Monitor

-What is LCD Monitor?

-How LCD Monitors work?

-Why LCD Monitors?

-Comparing with CRT Monitors

-So, CRT or LCD

what is lcd monitor
What is LCD Monitor?

LCD Monitor is a kind of monitor using Liquid Crystal to glow red, green and blue.

Liquid Crystal was found in 1888, but the people at that time don’t know how to use them to form a monitor, and they don’t have computer at that time.

A typical LCD monitor

how lcd monitors work
How LCD Monitors Work?

They are simple, simply one liquid crystal between two polarized panels.

When there is electricity go through the liquid crystal, the crystal will change the

Properties of the light wave, such as from horizontal to vertical.

how lcd monitors work4
How LCD Monitors Work?

Page 2

When LCDs are connected to

Electricity, the light waves are

Able to get through the polarized panels. (shown above)

The picture in the left is the close up (60x) of

The LCD monitor.

why lcd
Why LCD?

Why LCD? Why don’t we use the traditional CRT Monitors?

We use LCD monitor because it is completely conserve of space.

-It is flat and thin.

-LCD monitor images wont get blur after years because it don’t need focus.

-With LCD monitor, you can put a 21 inch monitor in your room! Because it is thin.

comparing with crt
Comparing with CRT

Vs.

LCD

CRT

Advantage

-Light

-Thin

-No focusing problem

-Conserve Space

-Cyber look

-Less radiation problem

-Highest resolution Usually: 1600*1200 or higher

-Cheap

-Mature

-Sufficient brightness

-High refresh frequency usually: 200Hz

Disadvantage

-Highest Resolution Usually: 1280*1024

-Expensive

-Not mature yet

-Not bright enough compare with CRT

-Low refresh frequency usually: 75Hz

-Heavy

-Thick (related to the monitor size)

-There is focus problem if aged

-Waste Space

-Old looking

-Radiation problem

so crt or lcd
So, CRT or LCD?

Your decision….

the end
The End

Thanks for looking..