Your SlideShare is downloading. ×
0
LCD screen
LCD screen
LCD screen
LCD screen
LCD screen
LCD screen
LCD screen
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

LCD screen

142

Published on

Published in: Business, Technology
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
142
On Slideshare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
1
Comments
0
Likes
0
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. LCD Screen By Jeffrey Chan
  • 2. LCD Screen  A LCD monitor (liquid-crystal display) is a flat panel display, electronic visual display, or video display that uses the light modulating properties of liquid crystals.
  • 3. How is it used?  LCDs are used in a wide range of applications including computer monitors, televisions, instrument panels, aircraft cockpit displays, and signage.
  • 4. How does it work?  A LCD monitor consists of a light source and a glass panel which consists of millions of pixels which consists of 3 sub-pixels which consists of two polarizing filter(vertical/horizontal), a liquid crystal layer and either a red, blue or green color filter.
  • 5. How does it work?  When light goes through the horizontal polarizing filter, unpolarized light will be polarized horizontally. Liquid crystal will then twist the horizontally polarized light to vertically polarized light, allowing light to go through the vertical polarizing filter.  By applying different amount of voltage to the liquid crystal layer, the twisting effect can be varied.
  • 6. How does it work?  Human eyes retina can only detect three colours, red, blue and green. In fact, the only “real colours” that can be emitted by the LCD screen are red, blue and green. By adjusting the intensity of light of the subpixels, the LCD monitor actually fakes our brain to think what we are looking at is yellow. This is not yellow! This is what we are seeing!
  • 7. The End

×