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| Figures from LG Display’s pending patent application, "Flat Panel Display Having Meta Lens And Personal Immersion Display Having The Same" (KR10-2021-0191108). (Source: KIPRIS) |
LG Display filed a patent application with the Korean Intellectual Property Office in December 2021 for a metasurface-based lens system tailored to extended-reality (XR) displays, marking its bid to slim down and lighten personal immersive head-mounted devices.
The application (KR10-2021-0191108), titled "Flat Panel Display Having Meta Lens And Personal Immersion Display Having The Same," was formally examined in September 2024—well within the three-year window required to avoid automatic withdrawal.
According to the specification, the invention stacks a first meta-lens (ML1), a transparent dielectric layer (LRL), and a second meta-lens (ML2) on top of a conventional flat-panel display. Incident light from each pixel and its sub-pixels is collected and steered by the first meta-lens into a defined viewing area, then converted into parallel beams by the second meta-lens for projection.
LG Display said in the filing that the arrangement boosts optical resolution beyond the limits of physical pixel density, while multilayer metasurface arrays control chromatic and spherical aberrations across broad wavelength bands and wide fields of view. The company added that the technology can dramatically reduce the thickness and weight of head-mounted XR devices, including AR/VR headsets.
As of April 2025, this is LG Display's only Korean application to include "meta-lens" in the title.
By PatenTrip
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