LED

=LED=

Editor: Acacia Blanco

Author: Shawn, Park no comma

LED is an abbreviation for the words Light Emitting Diode, semiconductor light source. you dont need the second citation The LED gives off light when an electric current goes through them. The LED must be carefully connected together in the right way. There is a label or diagram for one to follow that has the A or + sign forthe cathode. ( A cathode is the negative or positive electrode in a cell like a battery.) The LED's come in a lot of different colors. You can find them in amber, red, yellow, green, blue and white. The blue and the white ones are the most expensive ones. The color of LED is because one has to determine the kind of semiconductor material. Some people think it is because of the packaging but that is not true. LED of all colors are also available in clear packages. LED shows its packages in a pattern of 7 segments displayed for showing the digits 0~9. watch your grammar, LEDs, not LED's, ok?

= =

== when this picture shows up, there is something in Korean underneath. what is it?! ==

The se picture s is (are some) general design s for packages of enormous mounts of LEDs.
 * [[image:http://www.kpsec.freeuk.com/photos/rapid/bargra.jpg width="170" height="127" caption="Bargraph display, photograph © Rapid Electronics"]] || [[image:http://www.kpsec.freeuk.com/photos/rapid/7segme.jpg width="106" height="145" caption="7-segment display, photograph © Rapid Electronics"]] || [[image:http://www.kpsec.freeuk.com/photos/rapid/starbu.jpg width="137" height="191" caption="Starburst display, photograph © Rapid Electronics"]] || [[image:http://www.kpsec.freeuk.com/photos/rapid/dotmat.jpg width="129" height="187" caption="Dot matrix display, photograph © Rapid Electronics"]] ||
 * Bargraph || 7-segment || Starburst || Dot matrix ||

This is a picture of LED color s.

do you need the 7-segment diagram over there? ->