US researchers are claiming the largest flexible colour OLED display using mixed oxide thin-film transistors - a 7.4in device for the US Army.
"It meets a critical target set by the US Department of Defense to advance the development of full-colour, full-motion video flexible OLED displays for use in thin, lightweight, bendable and rugged devices," said Arizona State University's Flexible Display Center (FDC).
"One of the primary directives of the FDC has been to pursue approaches to flexible technologies that take advantage of existing manufacturing processes," added Centre director Nick Colaneri. "This focus drove us to pursue a display based on mixed-oxide TFTs, which are widely regarded as an alternative to low-temperature polysilicon."
Zinc indium oxide and indium gallium zinc oxide are examples of mixed oxide semiconductors.
"Mixed oxide TFTs can be manufactured on existing amorphous silicon production lines, eliminating the need for specialized equipment," said the University.
FDC was established by the US Army and the research was carried out with US government funding.
The display will be on show at SID Display Week next week in Boston Massachusetts.
