NHK has improved the resolution of their organic TFT (OTFT) flexible OLED panel by four times. The flexible OLED is a 5" 320x240 (QVGA), 80ppi panel. In its 318um-wide pixel (their previous panel's pixel size was 600um) the red, green and blue subpixels are transversely arranged. Its frame frequency is 60Hz.
NHK flexible OTFT OLED panel photo
The gate insulating film was formed by a coating method, which is suited for a large-area panel. The OLED layer was formed by an evaporation method using a low-molecular phosphorescent material.
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Posted: May 28,2010 by Ron Mertens
