Ross Young, DisplaySearch's President and Founder says -
The technology behind this product is small molecule OLED material and a CMOS LTPS backplane produced at their joint venture with Toyoda. The red material is the highly efficient phosphorscent type from UDC fabricated by PPG. The blue is likely from Idemitsu Kosan. It is a top emission design which improves brightness, but it also uses a color filter which lowers brightness and makes it even more costly. They went with the color filter along with the RGB OLED materials to meet their color gamut requirements.
Samsung SDI, which has a more recent design, is able to achieve the same color gamut without the color filter. We would expect Sony’s next design to either exclude the color filter or go with white OLED material and maintain the color filter which would be bad news for UDC unless they went with UDC’s white material.
