OLED displays offer benefits such as high resolution and ultra-high clarity to enhance the value proposition for consumers. These factors have led to increased adoption of AMOLED displays in smartphones.
In 2010, OLED displays were first used in Samsung Galaxy S smartphones, and they are used in all the smartphones in the Samsung Galaxy series. Thus, the increased usage in smartphones is expected to propel the shipment of OLED displays and increase the demand for OLED materials during the forecast period.
Functioning of OLED Display Units
An OLED display unit comprises a power supply, an anode, a cathode, an emissive layer, and a conductive layer. The OLED panel is supported by a glass substrate. Electric power passing through the display unit enables the cathode to inject electrons. The electrons present in the organic molecules in the conductive layer are removed by the anode to create electron holes.
Electron holes are far more mobile than electrons and they move up to the emissive layer to combine with the electrons generated by the cathode. When electrons move into the holes, they produce photons in the form of light. This concept is followed in all OLED display units, with minute alterations in the molecules used to suit different devices and specifications.
