If you liked the ‘Extending the Touchscreen’ project by Michael Knuepfel here are a few experiments by Benjamin Gaulon using displays to convert light to sound waves.
Research and recent innovations have led to an amazing increase of types and uses of visual displays and screens; indeed, in our predominantly visual culture, they are everywhere. A typical person carries at least one device with a screen, is presented with them in public places, uses them at work and in many leisure activities. They are so ingrained in our everyday acts and habits that we don’t even notice them anymore. L.S.D invites its users to engage in a new perception of their daily environment. In ecology this class of relationship is called commensalism.
L.S.D feeds on light via two LDR (light depending resistor) mounted on a suction cup, allowing the sensors to be mounted on any screen surface. An analogue synthesizer converts the light input to sound waves. This device can be used in many different configurations and feeds from any light sources. Even if L.S.D can be controlled by any light source, its design is aimed at screen reading/listening.
For more info visit the official project page …