Micro-resonant cavity organic light-emitting diode with high refractive index contrast dielectric metasurfaces for naked-eye 3D display

Wang, Jing-Qi; Qin, Zhen-Wei; Ma, Yue; Yang, Yang; Huang, Hong-Yi; Guo, Chen; Yue, Qing-Yang

doi:10.1016/j.optcom.2022.129251

Cited by 4 publications

(1 citation statement)

References 30 publications

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“…Recently, RCLED has been employed as collimating elements to enhance the spatial coherence of light emission, facilitating the integration of the metasurface onto LED chips [10][11][12] . Through the integration of a beam-splitting metasurface on a RCR-RCLED, we achieved directional emission of the linearly polarized light beam.…”

Section: Directional Emission From Rcledmentioning

confidence: 99%

High-purity, highly directional resonant cavity light-emitting diode integrated with tunable metasurface for plant illumination

Zeng,

Huang

2024

International Conference on Optoelectronic Information and Functional Materials (OIFM 2024)

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Light quality and controllability are crucial factors in plant illumination, posing challenges such as formulating precise light environment and achieving accurate micro-zone lighting. To address these issues, we proposed a resonant cavity light-emitting diode (RCLED) device that incorporates a resonant cavity reflector (RCR) and a metasurface, offering advantages such as high purity and highly directional emission. The RCR, composed of various pairs of distributed Bragg reflectors, was investigated to narrow the full-width at half-maximum (FWHM) of the emitting spectrum, thereby improving the purity. A traditional beam-splitting metasurface was designed to achieve directional emission of the linearly polarized light beam. However, traditional devices with fixed directional emission limit their adaptability. We leverage the Moiré effect to design a two-cascaded metasurfaces system. This device enables tunable deflection angle of the output beam, providing greater flexibility and control. Compared to tradition RCLEDs, our angle-tunable RCR-RCLED with two cascaded metasurfaces boasts a one-third FWHM. Compared to RCR-RCLED integrated with a tradition metasurface, our device has a tunable deflection angle.

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Section: Directional Emission From Rcledmentioning

confidence: 99%

High-purity, highly directional resonant cavity light-emitting diode integrated with tunable metasurface for plant illumination

Zeng,

Huang

2024

International Conference on Optoelectronic Information and Functional Materials (OIFM 2024)

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A review on heating mechanism, materials and heating parameters of microwave hybrid heated joining technique

Zhang,

Qiu,

Zeng

et al. 2024

Journal of Manufacturing Processes

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Recent progress of metasurfaces in light-emitting diodes

Zeng,

Hou,

et al. 2024

Applied Physics Reviews

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Light-emitting diodes (LEDs) have been known as the most widely used light source in lighting and displays for more than 60 years. There is still room for progress in the performance of LEDs, especially since the current devices with various types of different light-emitting layer materials have converged to unity in terms of internal quantum efficiency, and there is an urgent need to improve the light extraction efficiency. Metasurfaces (MSs) have received attention from researchers as structures that can be integrated with LEDs to efficiently modulate the phase and amplitude of light through resonance and scattering, which can reduce light loss. This paper reviews the development of metasurfaces in LEDs so far. The different working mechanisms of metasurfaces composed of different materials are first analyzed in depth. Subsequently, three aspects of light extraction, angle change, and polarization modulation are described in detail according to different applications of metasurfaces in LEDs. Finally, the current status of metasurface applications in LEDs is summarized, and the future development prospects are envisioned.

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Micro-resonant cavity organic light-emitting diode with high refractive index contrast dielectric metasurfaces for naked-eye 3D display

Cited by 4 publications

References 30 publications

High-purity, highly directional resonant cavity light-emitting diode integrated with tunable metasurface for plant illumination

High-purity, highly directional resonant cavity light-emitting diode integrated with tunable metasurface for plant illumination

A review on heating mechanism, materials and heating parameters of microwave hybrid heated joining technique

Recent progress of metasurfaces in light-emitting diodes

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