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.
-What is LCD Monitor?
-How LCD Monitors work?
-Why LCD Monitors?
-Comparing with CRT Monitors
-So, CRT or LCD
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
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.
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 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.
-No focusing problem
-Less radiation problem
-Highest resolution Usually: 1600*1200 or higher
-High refresh frequency usually: 200Hz
-Highest Resolution Usually: 1280*1024
-Not mature yet
-Not bright enough compare with CRT
-Low refresh frequency usually: 75Hz
-Thick (related to the monitor size)
-There is focus problem if aged
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