OLED- the future of lighting
The past decade has seen a rise in the technology of LED lights. They are energy saving, waste less energy and are affordable owing to its long life. This made them great value for houses, businesses and other places. The Energy Department in US stated that usage of LEDs in home cut down energy consumption by a whopping 75% and they also last 25% longer.
However, with advancement in technology, new developments are made to improve on the environmental friendliness of the lights. The burning need to use less environmental resources gave rise to organic light-emitting diodes or OLEDs as we know it.
OLEDs are considered to be the game changer in this sector. CNET even reportedly claimed OLED as a premium version of the LED lights which worked on lesser energy consumption and displayed higher brightness. Even though currently, OLEDs are a bit on the expensive side, but with higher consumption, the cost is more likely to subdue. OLEDs can last for more than 40,000 hours which makes them cost-efficient in the long run.
Even though LED and OLEDs sound similar, they are not the same. While LED lights are small and provide light in a specific area, OLEDs are flat and provide ambient lighting to a much bigger space. LEDs are point light source whereas OLEDs are surface light source. While LEDs provide glare, OLEDs diffuse the light which enables the people to gaze at the light directly, without having to shield their eyes.
OLEDs are made from a wide range of organic materials and not some thin film of materials that emit light. OLEDs have positively charged anode which consists of a transparent component called idium tin oxide (ITO), which is used for producing electrically conductive films or windows. An organic semiconductor layer, a light emitting layer (fluorescent yellow), calcium and an aluminium cathode follows the suit.
It almost takes up three days to create OLEDs. Since the layers are only nanometers in thickness, it is essential for ITO substrate to be cleansed thoroughly. After this, oxygen plasma treats it to create a homogenous layer.
A lot of effort and technique goes into making OLEDs. OLEDs have the capacity to get coated on any of the flexible surfaces and they also emit higher quality light. OLEDs are, currently, the only technology which can be used to create large areas of transparent and flexible panels with the technology of lighting.
OLEDs are most widely used in businesses where various companies want to lighten up wider spaces. OLEDs are specially used in the display markets like electric signs, corporate sector and also in the automotive markets, owing to their higher efficiency and lesser energy consumption than the traditional regular lights.
OLEDs share a larger portion of the market and its consumption rate is growing every single day. A rise in the environment related concerns helps in fostering the growth of OLEDs. OLEDs are the light sources of the future. With new technologies being on rise, the next step forward would be to functionalise and fabricate the various multi-layered structure of OLEDs.
According to the reports by UBI, by 2020, OLEDs should make their space in the lighting marketplace and account for over $4.7 billion in sales. This makes them the future of lighting technology.