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Home » Offer List » LED Display » Bi-Color / Tri-Color LED (NFL-3017UEW)
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Bi-Color / Tri-Color LED (NFL-3017UEW)
| Offer Type: |  |
|---|---|
| Offer Category: | Lights & Lighting >LED Lighting > LED Display |
| Offer Post Time: | 2009-12-25 |
| Expiration Date: | 2010-02-19 |
| Details: |
A "bi-color LED" is actually two different LEDs in one case. It consists of two dies connected to the same two leads but in opposite directions. Current flow in one direction produces one color, and current in the opposite direction produces the other color. Alternating the two colors with sufficient frequency causes the appearance of a blended third color. For example, a red/green LED operated in this fashion will color blend to produce a yellow appearance.
A "tri-color LED" is also two LEDs in one case, but the two LEDs are connected to separate leads so that the two LEDs can be controlled independently and lit simultaneously. A three-lead arrangement is typical with one commmon lead (anode or cathode). |
