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Rhythmic lighting with varying color-temperature and brightness like that of diurnal sunlight has now been recognized to be extremely crucial to human health.

C. Lee and co-workers present transparent organic upconversion devices for biotechnology and night-vision applications. The top-right circle presents an image seen by naked eye, while the bottom-left circle presents the image captured by the proposed upconverter. The proposed highresolution upconverter is capable of identifying blood vessels and observing objects in a dark environment.

Below are the supplementary notes on this article, 1. Prior to the publication of this paper, an earlier version was published as a proceedings paper of The 21st International Workshop on Active-Matrix Flatpanel Displays and Devices (AM-FPD 14) held in Kyoto, Japan, in 2014. 38) In this article, new data were included regarding the sheet resistances of the WAM, the surface morphology of the TCO surface, and the lifetime of the plasma-treated ITO and WAM devices. Also, more intensive discussion was given on the hole injection property and the lifetime of the fabricated OLEDs on the basis of the new data above.

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