We have developed a high‐definition (0.5‐inch XGA) Micro‐OLED display that employs high‐definition technologies, including a new pixel driving circuit and a high‐efficiency top‐emitting white OLED device with a color filter. These technologies were incorporated in the world's first XGA OLED electronic viewfinder for digital single‐lens cameras and HD‐personal 3D viewer with two 720p Micro‐OLED displays.
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Onoyama et al. (2012) studied this question.