journal article·2025-01-01Open access

A four-primary-color micro-LED display with wide color gamut, low blue light hazard, and promise to improve working efficiency in the working conditions

Peiyu Sun, Min Min, Qingfeng Wu, Weijun Huang, Qing Xiao, Wei Xiao, Chaodan Zheng

AIP Advances· Volume 15· Issue 1

Abstract

Attention should be paid to the circadian rhythm effect, photobiological safety, and color gamut coverage (CGC) of displays. In this study, we use genetic algorithm to search the displays satisfying the demands of health, wide color gamut, and promise to improve working efficiency in the working conditions, when the correlated color temperature is around 6500 K. We also studied the variations in optimal results when changing the peak wavelength and full width at half maximum (FWHM), finding that the impacts of peak wavelengths are greater than those of FWHMs on the circadian action factor (CAF), blue light hazard, and CGC, and a balance should be made between the CAF and the luminous efficacy of radiation.
Source: crossref · Quality: baseline

Research context

OpenAlex topics: Impact of Light on Environment and Health · Circadian rhythm and melatonin · Color perception and design

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Physics and Materials Science, Nanchang University 1 , Nanchang, Jiangxi 330031,

School of Information Engineering, Nanchang University 2 , Nanchang, Jiangxi 330031,

Funding

The Jiangxi Provincial Natural Science Foundation

References (30)

Show source-provided references
1. Angular color shift of micro-LED displays10.1364/oe.27.00a746 ↗
2. Design and simulation of low circadian action micro-LED displays with four primary colors10.3390/cryst10050383 ↗
3. Mini-LED, micro-LED and OLED displays: Present status and future perspectives10.1038/s41377-020-0341-9 ↗
4. Micro-light-emitting diodes with quantum dots in display technology10.1038/s41377-020-0268-1 ↗
5. Demonstration of ultra-small (<10 μm) 632 nm red InGaN micro-LEDs with useful on-wafer external quantum efficiency (>0.2%) for mini-displays10.35848/1882-0786/abd06f ↗
6. Full-color realization of micro-LED displays10.3390/nano10122482 ↗
7. Color-conversion displays: Current status and future outlook10.1038/s41377-024-01618-8 ↗
8. Quantum-dot color wheel for projection displays10.1364/optica.502938 ↗
9. Analytic design of light extraction array for light guide plate based on extended sources10.1364/oe.27.034907 ↗
10. Edge/direct-lit hybrid mini-LED backlight with U-grooved light guiding plates for local dimming10.1364/oe.421346 ↗
11. Uniformity improvement of a mini-LED backlight by a quantum-dot color conversion film with nonuniform thickness10.1364/ol.505552 ↗
12. Action spectrum for melatonin regulation in humans: Evidence for a novel circadian photoreceptor10.1523/jneurosci.21-16-06405.2001 ↗
13. A ‘melanopic’ spectral efficiency function predicts the sensitivity of melanopsin photoreceptors to polychromatic lights10.1177/0748730411409719 ↗
14. Investigation on three-hump phosphor-coated white light-emitting diodes for healthy lighting by genetic algorithm10.1109/jphot.2018.2885091 ↗
15. Investigation on circadian action and color quality in laser-based illuminant for general lighting and display10.1109/jphot.2020.3007529 ↗
16. A human-centric approach to assess daylight in buildings for non-visual health potential, visual interest and gaze behavior10.1016/j.buildenv.2016.09.033 ↗
17. Spectral optimization of the three-primary laser-based displays with large circadian action factor based on age of user10.1109/jphot.2024.3492036 ↗
18. Investigation on a high-quality health laser light source based on the age of lighting users10.1364/oe.531989 ↗
19. A proposed lighting-design space: Circadian effect versus visual illuminance10.1016/j.buildenv.2017.06.025 ↗
20. Retinal damage by light in rats
21. Study on the safety of blue light leak of LED10.3964/j.issn.1000-0593(2014)02-0316-06 ↗
22. Efficacy and ocular safety of bright light therapy lamps10.1177/1477153512443062 ↗
23. Hybrid downconverters with green perovskite-polymer composite films for wide color gamut displays10.1364/oe.25.012915 ↗
24. Design of primaries for a wide-gamut television colorimetry10.1109/tbc.2010.2074450 ↗
25. Multi-primary-color quantum-dot down-converting films for display applications10.1364/oe.27.028480 ↗
26. Achieved RGBY four colors changeable electrochromic pixel by coelectrodeposition of iron hexacyanoferrate and molybdate hexacyanoferrate10.1021/acsami.0c03638 ↗
27. Wide color gamut, low non-visual effect, and their stabilities related to luminous properties in four-primary-color display10.1016/j.optlastec.2022.108565 ↗
28. Change of blue light hazard and circadian effect of LED backlight displayer with color temperature and age10.1364/oe.26.027021 ↗
29. Spectral optimization of trichromatic white LEDs based on age of lighting user and application scene10.1364/oe.485523 ↗
30. Spectral design considerations for white LED color rendering10.1117/1.2130694 ↗