Research paper: TurboLED: Pixel Design for Efficient Displays and Expanded Color Gamut
Scientific Summary
This research by Peter Levermore at Excyton Limited (UK) in collaboration with Kaust, the university of Durham and Fluxim AG introduces TurboLED®, a novel pixel design comprising stacked LEDs with independent lighter and deeper emissive units for red, green, and blue. The research focus is on reducing display power consumption, extending device lifetime, and expanding the colour gamut. Prototype green devices were fabricated, demonstrating both light green (CIE 1931 (x, y) = (0.369, 0.601)) and deep green (CIE 1931 (x, y) = (0.230, 0.689)) emission. Simulations, based on a 2796 x 1290 (460ppi) display operating at 1000 cd/m2, showed a 36.9% power saving for TurboLED® compared to standard RGB OLED displays. This is significant as lighter, more efficient units can render most images. The design also promises up to 50% power reduction with further optimisation, and enables the Rec. 2020 colour gamut without significant power increase, alongside extended display lifetime.
Publication Details
Levermore, P., Zeder, S., Bluelle, B., Ruhstaller, B., Subedi, R.C., Stavrou, K., Ahumada-Lazo, R. and Monkman, A. (2023), 9-2: TurboLED: Novel Pixel Design for Reduced Power Consumption and Expanded Color Gamut. SID Symposium Digest of Technical Papers, 54: 93-96. https://doi.org/10.1002/sdtp.16496
Fluxim Tools Used
Simulations of TurboLED® power consumption were performed using the prototype simulation software Opixs that was developed as part of this coolaboration. The simulations were crucial for quantitatively comparing the power consumption of the novel TurboLED® display design against a standard RGB OLED display. These measurements were important because they validated and demonstrated the core benefit of the TurboLED® technology: a 36.9% reduction in display power consumption for typical images.
Why it Matters
This research matters because TurboLED® significantly reduces display power consumption by 36.9% (with potential for up to 50% savings), extending battery life and lowering environmental impact.
It also promises substantially longer display lifetimes by utilising more stable lighter green and blue emitters for the majority of images.
Furthermore, TurboLED® enables an expanded Rec. 2020 colour gamut without a significant increase in power consumption, overcoming a common trade-off in display technology