operate at 1.7 to 3.3 volts. This characteristic makes them completely compatible with solid state circuits. They have a response time of nanoseconds. They also offer good contrast ratio for the visibility. The power requirement is typically from 10- 150 mW. They have a lifetime of 10,000 working hoLED displays, or light-emitting diode displays, are alpha-numeric readouts that glow in the dark. The use of digital displays in calculators, watches, and all forms of instrumentation is increasing day by day. We can see LED displays in railway stations, airport traffic signals, stock exchanges, clocks, and almost everywhere. It has thus contributed to the current extensive interest in devices that will emit light when properly biased. The two types in common use today are the light-emitting diode (LED) and the liquid-crystal display (LCD).

LED falls within the family of p-n junction devices. LED displays are available today in many different sizes and shapes. The light-emitting region is available in lengths from 0.1 to 1 in. Numbers can be created by segments of diodes. By applying a forwards bias to the proper p-type material segment, any number from 0 to 9 can be displayed.

There are also lamps that contain two light-emitting diodes, so that a reversal in biasing will change the color, mostly from green to red and vice versa. Light emitting diodes are currently available in various colors like green, red, yellow, orange, white and blue. In general, light emitting diodes operate at 1.7 to 3.3 volts. This characteristic makes them completely compatible with solid state circuits. They have a response time of nanoseconds. They also offer good contrast ratio for the visibility. The power requirement is typically from 10- 150 mW. They have a lifetime of 10,000 working hou

ks, and almost everywhere. It has thus contributed to the current extensive interest in devices that will emit light when properly biased. The two types in common use today are the light-emitting diode (LED) and the liquid-crystal display (LCD).

LED falls within the family of p-n junction devices. LED displays are available today in many different sizes and shapes. The light-emitting region is available in lengths from 0.1 to 1 in. Numbers can be created by segments of diodes. By applying a forwards bias to the proper p-type material segment, any number from 0 to 9 can be displayed.

There are also lamps that contain two light-emitting diodes, so that a reversal in biasing will change the color, mostly from green to red and vice versa. Light emitting diodes are currently available in various colors like green, red, yellow, orange, white and blue. In general, light emitting diodes operate at 1.7 to 3.3 volts. This characteristic makes them completely compatible with solid state circuits. They have a response time of nanoseconds. They also offer good contrast ratio for the visibility. The power requirement is typically from 10- 150 mW. They have a lifetime of 10,000 working ho

es. LED displays are available today in many different sizes and shapes. The light-emitting region is available in lengths from 0.1 to 1 in. Numbers can be created by segments of diodes. By applying a forwards bias to the proper p-type material segment, any number from 0 to 9 can be displayed.

There are also lamps that contain two light-emitting diodes, so that a reversal in biasing will change the color, mostly from green to red and vice versa. Light emitting diodes are currently available in various colors like green, red, yellow, orange, white and blue. In general, light emitting diodes operate at 1.7 to 3.3 volts. This characteristic makes them completely compatible with solid state circuits. They have a response time of nanoseconds. They also offer good contrast ratio for the visibility. The power requirement is typically from 10- 150 mW. They have a lifetime of 10,000 working ho

There are also lamps that contain two light-emitting diodes, so that a reversal in biasing will change the color, mostly from green to red and vice versa. Light emitting diodes are currently available in various colors like green, red, yellow, orange, white and blue. In general, light emitting diodes operate at 1.7 to 3.3 volts. This characteristic makes them completely compatible with solid state circuits. They have a response time of nanoseconds. They also offer good contrast ratio for the visibility. The power requirement is typically from 10- 150 mW. They have a lifetime of 10,000 working ho operate at 1.7 to 3.3 volts. This characteristic makes them completely compatible with solid state circuits. They have a response time of nanoseconds. They also offer good contrast ratio for the visibility. The power requirement is typically from 10- 150 mW. They have a lifetime of 10,000 working hours. Their semiconductor properties make them durable by adding a significant ruggedness factor.