OLEDs are already used in the displays of smart phones or digital cameras today. They offer an especially bright image with high contrast, but come with a serious drawback: typically, only one quarter of the electrical energy invested in running the device is actually converted into light.
I love art that plays tricks on my eyes, making me see something that isn’t there but is. The upcycled ‘Rising Moon’installation created for last month’s Mid-Autumn Festival in Hong Kong is just such a piece of art.
We all know It's not exactly easy going green. For home lighting applications, organic light emitting diodes (OLEDs) hold the promise of being both environmentally friendly and versatile.
The lighting, based on field-induced polymer electroluminescent (FIPEL) technology, also gives off a soft, white light, rather than the yellowish tone of fluorescents or LEDs' bluish tinge.
A trick used by fish to overcome a basic law of physics could lead to improvements in the efficiency of LED lights.
Sony's shown off a new type of LED television which uses six million tiny light-emitting diodes to create an image.
LEDs are one of the few types of lighting that actually give you enough light to see by, while still being good for the environment... or maybe not.