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Laser-based displays are highly sought after for their superior brightness and colour performance, especially in advanced applications such as augmented reality (AR). However, their broader use has been hindered by bulky projector designs and complex optical module assemblies. Here we introduce a laser display architecture enabled by large-scale visible photonic integrated circuits (PICs) to address these challenges. Unlike previous projector-style laser displays, this architecture features an ultra-thin, flat-panel form factor, replacing bulky free-space illumination modules with a single, high-performance photonic chip. Centimetre-scale PIC devices, which integrate thousands of distinct optical components on-chip, are carefully tailored to achieve high display uniformity, contrast and efficiency. We demonstrate a 2-mm-thick flat-panel laser display combining the PIC with a liquid-crystal-on-silicon (LCoS) panel, achieving 211% of the colour gamut and more than 80% volume reduction compared with traditional LCoS displays. We further showcase its application in a see-through AR system. Our work represents an advancement in the integration of nanophotonics with display technologies, enabling a range of new display concepts, from high-performance immersive displays to slim-panel 3D holography.
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http://dx.doi.org/10.1038/s41586-025-09107-7 | DOI Listing |
Nature
August 2025
Reality Labs Research, Meta Platforms, Inc., Redmond, WA, USA.
Laser-based displays are highly sought after for their superior brightness and colour performance, especially in advanced applications such as augmented reality (AR). However, their broader use has been hindered by bulky projector designs and complex optical module assemblies. Here we introduce a laser display architecture enabled by large-scale visible photonic integrated circuits (PICs) to address these challenges.
View Article and Find Full Text PDFNat Photonics
June 2025
Condensed Matter Department, J. Stefan Institute, Ljubljana, Slovenia.
The softness of liquid crystals, their anisotropic material properties, their strong response to external fields and their ability to align on patterned surfaces makes them unsurpassable for a number of photonic applications, such as flat-panel displays, light modulators, tunable filters, entangled photon light sources, lasers and many others. However, the microscale integration of liquid crystals into microphotonic devices that not only perform like silicon photonic chips but also use less energy, operate exclusively on light, are biocompatible and can self-assemble has not been explored. Here we demonstrate a soft-matter photonic chip that integrates tunable liquid-crystal microlasers and laser microprinted polymer waveguides.
View Article and Find Full Text PDFACS Appl Mater Interfaces
May 2025
National and Local United Engineering Laboratory of Flat Panel Display Technology, College of Physics and Information Engineering, Fuzhou University, Fuzhou 350100, China.
Micro light-emitting diode (Micro-LED) is widely regarded as a highly promising technology in the current display field due to its excellent performance, but the core issue hindering the further development of Micro-LED is how to achieve high-precision and high-yield transfer. In this study, laser-induced forward transfer (LIFT) is adopted as the main technique, and a novel blister-type dynamic release layer (DRL) material is selected, characterized by a gentle transfer process and minimal residue on the chip after transfer. Chip-on-wafer (COW) is a structure that fabricates a large number of Micro-LEDs (15 × 30 μm) on a sapphire substrate.
View Article and Find Full Text PDFMed Phys
April 2025
Department of Physics and Astronomy, University of California - Irvine, Irvine, California, USA.
Background: K-edge subtraction (KES) imaging is a dual-energy imaging technique that enhances contrast by subtracting images taken with x-rays that are above and below the K-edge energy of a specified contrast agent. The resulting reconstruction spatially identifies where the contrast agent accumulates, even when obscured by complex and heterogeneous distributions of human tissue. This method is most successful when x-ray sources are quasimonoenergetic and tunable, conditions that have traditionally only been met at synchrotrons.
View Article and Find Full Text PDFSensors (Basel)
June 2024
National & Local United Engineering Laboratory of Flat Panel Display Technology, College of Physics and Information Engineering, Fuzhou University, Fuzhou 350108, China.
To robustly and adaptively reconstruct displacement, we propose the amplitude modulation integral reconstruction method (AM-IRM) for displacement sensing in a self-mixing interferometry (SMI) system. By algebraically multiplying the SMI signal with a high-frequency sinusoidal carrier, the frequency spectrum of the signal is shifted to that of the carrier. This operation overcomes the issue of frequency blurring in low-frequency signals associated with continuous wavelet transform (CWT), enabling the precise extraction of the Doppler frequency of the SMI signal.
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