Photoresist Technology Yields Full-Color OLED for Large HD Displays

摘要

Fujifilm corporation and nano-electronics research institute at imec have demonstrated full-color organic light-emitting diodes (OLED) by using their jointly developed photoresist technology for organic semiconductors - a technology that enables submicron patterning. This breakthrough result paves the way for the production of high-resolution and large organic electroluminescent (EL) displays and establishment of cost-competitive manufacturing methods. Organic EL displays are increasingly used for televisions, mobile devices including smartphones as well as wearable devices. They can be made thin and flexible, while also offering excellent response time and contrast ratio. It is said that today's products require organic EL displays of high pixel density, around 200ppi for 4K televisions, 500ppi for full-HD mobile devices and even higher density for compact displays for wearable devices. Active research and development for organic semiconductors are going on to develop a high-resolution patterning method for organic EL materials to be used in these products.