LED Luminaries

LED news and insight from our technology editor Steve Bush, who has been messing with LED lighting for more years than he would care to remember.


A Pi-Lite red LED matrix display for Raspberry Pi

Ciseco has designed a 9×14 red LED matrix display for Raspberry Pi. An ATmega 328 processor handles control, for each pixel to be individually addressed in order that arbitrary patterns can be displayed, or users can display messages and graphics by sending simple commands and text strings to the…

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LED panel enables decoding of invisible images

Soon you could have access to secret information just by waving your hand, writes Sandrine Ceurstemont, editor, New Scientist TV. New digital signage allows you to decode invisible images by quickly moving your fingers in front of the screen.

The system, developed by Hirotsugu Yamamoto and colleagues from University of…

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AMOLED TVs stand out but at a price - IHS

Global shipments of TVs based on active matrix organic light emitting diode (AMOLED) technology are expected to reach 2.1 million units in 2015, up from just 34,000 in 2012, according to market analyst IHS iSuppli.  But even this large increase will mean that AMOLED TV shipments will still…

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CES: Sony shows 55in, full HD "Crystal LED" self-emitting display

Sony has developed a self-emitting display technology, dubbed Crystal LED Display, which it demosntrated in a full HD, 55-inch prototype model at the International Consumer Electronics Show (CES) in Las Vegas, writes Richard Wilson.

It is claimed to be the first 55-inch full HD self-emitting display…

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Flexible OLEDs - The state of play

Were we not promised super-thin bendable, flexible and rollable organic LED (OLED) displays? Phones like Samsung’s Galaxy and HTC’s Desire have shown us that the rigid versions can deliver stunning images. So where are those flexies? Steve Bush considers the current state of play…It turns out…

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LED backlight design for large displays

LEDs use a DC supply, making them simpler to drive, there is no inverter, which improves efficiency, and their power consumption varies nearly linearly with brightness, simplifying power management. As a result the majority of small to medium displays are now fitted with them, writes Mike Caddy, displays product manager…

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XMOS powers LED cube art

Time for some culture. Check out this “Swarm Light” art installation, based on the dynamic display of LED cubes, courtsesy of some XMOS processors.

The light sculpture, by rAndom International, is being displayed at Design Miami/Art Basel. Each of the three cubes consists of 1000 LED modules, each containing…

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