Displaying information using LED matrix displays
The LED dot matrix or LED display panel, as it is also known, is one of the most convenient methods of displaying media in the world. It’s a refined version of the outmoded luminous filament lamp display. An excellent example of the use of LED display panels is the rolling ads seen in shop windows, or the information signs at train stations.
LED displays consume the least amount of energy leading to lower cost of operations.
Advantages include::
* Bright and colorful
* Easily expanded
* Durable and withstands any climate conditions
* Cost-effective value of installation
* Used in small displays to produce very clear text
The tiny displays referred to here include three to six foot long displays that show arrival data on subways and at bus stops, “special offer” and “upcoming event” messages in stores and at recreational venues, and other similar displays.
Older LED matrix displays appeared only in red. Programmers feed info to the display using a keypad that is directly wired into the display unit.
Modern LED displays are available in 2 or 3 LED colors. They don’t rely on a keypad to program the display. This information can be sent over a network connection. This connection broadcasts information to displays stationed far away from each other at the same time. Multiple messages display at random as the microprocessor interprets data and shows the desired effects such as flashing text. It is possible to intermix a message with local weather details, the current time and similar info.
Full color video displays is also possible using a LED display, also known as an RGB display. It is actually capable of producing 16 million colours by displaying each colour at difference levels. Given a LED matrix display with a fast enough processor, it can produce moving video with full colour.
Large RGB displays aren’t unusual in sports arenas and other big outdoor spaces. During such instances, live video can be shown of the sport taking place, giving a clear view to the audience.
Embedded Adventures is a great place to find out about electronics, and also help you with your new project. There you can find useful modules such as a alphanumeric LED display, or a LED display panel.
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