There are differences in the spectral composition of outdoor and indoor light, and these differences in lighting environments have attracted significant attention. A research group led by Professor Takahiro Ishinabe (School of engineering), Professor Yasuyuki Shirai, and Senior Research Fellow Koichi Kajiyama, in collaboration with Tsubota Lab Co., Ltd., has developed a new display system that incorporates micro-LED capable of emitting violet light directly into the screen.
This display system focuses on the relationship between the light topic environment and visual that has garnered significant attention in recent years. It employs technology that enables the emission of violet light, which is abundant in outdoor light but scarce in indoor environments, and which conventional displays do not emit—without compromising display quality. This technology is expected to serve as a foundational technology that contributes to display design based on modern lighting environments, in addition to delivering conventional display performance.
The results are presented as an invited talk at the Society for Information Display International Symposium DISPLAY WEEK on May 7, 2026.
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Tohoku University press release page (Japanese) (click here)