Researchers at the National Tsing-Hua University in Taiwan have successfully developed OLED panels that are capable of perfectly imitating sunlight. This breakthrough in the design of indoor lighting using OLED panels may show the way to OLED lighting solutions that are brighter and greener. The team’s creation that can replicate the phases of the sun from sunset until sunrise enables a white-light OLED panel to emit the same light wavelengths as natural sunlight.
J.H. Jou and his graduate students, the brilliant minds behind this development believe that by varying the voltage through the OLED panel from three to nine volts we can easily produce ambient light imitating natural light that changes from dawn to dusk. The OLED panel emits light through electroluminescence. The panel has a voltage applied across the electrodes, stimulating the electrons in the semiconducting layer near the panel’s cathode. The electrons are then released near the anode and leave behind positively charged holes and the electrons can then fill these holes and emit photos that produce light.
Indoor lighting is presently being ruled by LEDs, but OLED technology promises to be better as they are thinner and consume less power. The OLED panels may soon replace LEDs, as they are easier on the human eye and saves energy, thereby reducing greenhouse gasses produced from making electricity.