Free Republic

Breakthrough research has shown that twisting light into spiral patterns like those found in nature dramatically improved the efficiency of OLED screens. The researchers behind the novel approach believe their method for twisting light could revolutionize the efficiency of electronics, including display technologies like OLEDs and night vision. In the nearly 150 years since the invention of the light bulb, the science of light has continued to advance. As the use of electronic devices involving display technologies has rapidly spread in recent decades, scientists have been searching for new and innovative ways to control the chaotic behavior of light or...

The touch device has been created by researchers in America who used nanoparticles to sense the contours of a coin. It is accurate enough to detect the outline of Abraham Lincoln's face on a 1c coin and the letters TY in the word Liberty. To make the sensor, the researchers built up a film consisting of alternate layers of gold and cadmium sulfide nanoparticles with a thin plastic sheet on top and glass below. An object is placed on the plastic and an image sensor beneath the glass reads the changes in electrical current and electroluminescence caused within the nanoparticle...