Monitors

History of the Monitor

• Ferdinand Braun inventor of CRT in 1897– first widely used display tech

• Consisted of an electron gun and screen coated with phosphor dots

-- electron gun would shoot electrons,

phosphor dots glowed when struck

-- each pixel contained three phosphordots (Red, Blue, Yellow), could reproduceany colour

History of the Monitor cont.

• Peter Brody created first LCD screen in 1972

-- grid of liquid crystals with three transistors behind

every crystal

-- could generate the entire colour spectrum, produced sharper images than the CRT monitors

Function of the Monitor

• An output device, displays images and videos generated by the computer’s graphic card

How it Connects

• Monitors that require info in analog use a VGA connection (Most CRT monitors)

How it Connects cont.

• Monitors that require info in digital use a DVI connection (LCDs uses digital, but some can accept analog info)

Manufacturers

• BenQ• CTX• GVision• Sony• Samsung• LG (Life’s Good)• Princeton• ViewSonic• HP• Planar

Different Models

• HP LP3065 30" Widescreen LCD Monitor - $1830

• BenQ G2412HD 24" Widescreen LCD Monitor - $210

• Planar PT1710MX 17" Touchscreen LCD Monitor - $530

References

• http://gadgets.softpedia.com/news/History-of-the-PC-Display-041-01.html

• http://www.articlealley.com/article_80885_10.html• http://www.wilsonselectronics.net/articles4/

computer_monitor.htm• http://computer.howstuffworks.com/monitor3.htm• http://ca.dummies.com/how-to/content/how-to-connect-

your-monitor-to-your-pc.html• http://compreviews.about.com/cs/manmonitor/