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Electronic Displays

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Posted 13-06-2009 at 08:53 AM by putsign

Manufacturer of indoor LED display products, digital boards and led signs. Our electronic displays, sign boards, electronic message displays, electronic led display, product, products, electronic message display, electronic display boards indoor led display, indoor led sign tools for increasing manufacturing productivity and decreasing costly waste. These led displays are ideal for those looking to improve workflow while minimizing cost.

Electronic Displays:- Electronic displays are solid state displays which use a phosphor to emit light in the presence of an electric field. Phosphors used are usually yellow-orange or green.


Advantages:-

* Flat panel
* Bright, light emitting mono displays

Disadvantages:-

* 150V+ operating voltages
* Color panels difficult to make
* Development largely overtaken by PDPs


Light Emitting Diode (LED):- Light Emitting Diode (LED) are photon emitting semiconductors which emit light due to the injection electroluminescence effect. The wavelength of the emitted light varies primarily due to the choice of semiconductor materials used, and is commonly in visible spectrum or infrared.

Advantages:-

* Lowest cost red or green emissive indicator
* Available in very small sizes
* Very bright versions available (higher cost)
* Red and green types work from 3V supply

Disadvantages:-

* LED is point source, so light shaping required to make segment shapes
* White and blue LEDs expensive, need >3.6V supply
* Can have narrow viewing angle
* Color and efficiency vary with temperature and curren
* Care required to achieve 50 khrs+ life
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