The applications of liquid crystals are innumerable. Some of the well known applications are liquid crystal displays, liquid crystal thermometers, optical imaging, and many more.
I would like to give a surface overview on the physics behind the liquid crystals in LC displays.
Liquid crystals , its the new dimension today.We have liquid crystals being used in almost all the display devices that we use today.
The liquid crystal displays rely on the optical properties of certain liquid crystalline substances in the presence or absence of an electric field.A liquid crystal layer(approx. 10 micro metres in thickness) is oriented between two polarizers at an angle 90° to one another.Initially the liquid crystal layer is transparent but when an electric field is applied over the LC layer,the device loses transparency with increasing voltage and finally becomes opaque.In colour LCD systems,colour filters are used to generate red,blue and green pixels.
This forms the base of the liquid crystal technology in LCD display devices.
The basic physics behind it is just the simple concept of polarization and electrostatics.
of a psp viewed through a circular polarizer.
streak texture of a liquid crystal nematic phase.
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An amazing display of liquid crystals :
3 comments:
Nice...
gud attempt on the whole, but clear picture is sought. . . missing it. . .
good job
Excellent! Glad to see the change in scene!
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