Meta-Lens Flat Panel Display for Immersive Viewing
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Solution Overview
Problem
Personal immersion displays face limitations in achieving ultra-high resolution and lightweight, ultra-thin structures due to the use of conventional lens systems, which can lead to optical issues like chromatic and curved aberrations, and are constrained by the small screen area, limiting further resolution enhancement.
Innovation Solution
A flat panel display incorporating a meta-lens system that includes a first meta-lens to convert incident light into focused light and a second meta-lens to convert this light into parallel light, eliminating the need for conventional lenses, thereby reducing weight and complexity while increasing optical resolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional lens systems are used in personal immersion displays, then optical focusing is achieved, but weight and device complexity increase
Solution Approach 1:
The patent replaces conventional glass lens systems with a meta-lens structure that uses sub-wavelength patterned elements to achieve optical focusing. This substitution eliminates heavy glass materials while maintaining the necessary optical functions, directly resolving the contradiction between achieving optical focusing and reducing display weight.
Solution Approach 2:
The patent changes the fundamental parameter of lens material from conventional glass to meta-materials with specific refractive index properties. By adjusting the geometric parameters of the meta-lens elements (size, shape, spacing), the patent achieves focusing functionality with dramatically reduced weight compared to traditional lens systems.
2Reliability
If conventional lens systems are used in personal immersion displays, then optical focusing is achieved, but device complexity and optical aberrations increase
Solution Approach 1:
The patent replaces complex multi-element lens systems with a single planar meta-lens structure. This substitution simplifies the overall device architecture by eliminating the need for multiple lens elements, mounting structures, and alignment mechanisms, while maintaining optical focusing capability.
Solution Approach 2:
The patent extracts and eliminates unnecessary components from traditional lens systems, keeping only the essential light-bending function implemented through meta-lens elements. This extraction removes sources of optical aberration and structural complexity while preserving the core optical focusing function.
3Measurement precision
If screen area is increased in personal immersion displays, then resolution can be improved, but device size and weight increase
Solution Approach 1:
The patent changes the optical parameters through the meta-lens to achieve magnification of the display image. By controlling the focal length and magnification ratio of the meta-lens, the patent enables high-resolution imaging on a compact screen area, resolving the contradiction between improving resolution and maintaining small device size.
Solution Approach 2:
The patent transitions from directly viewing the physical pixel array to viewing an optically magnified virtual image. This dimensional transformation allows the display to achieve high effective resolution without proportionally increasing the physical screen area, as the meta-lens creates a magnified optical pathway.
4Reliability
If conventional lenses are used in personal immersion displays, then optical functions are achieved, but chromatic and curved aberrations occur
Solution Approach 1:
The patent replaces conventional refractive lenses with diffractive meta-lens elements that use sub-wavelength structures to control light propagation. This substitution fundamentally changes the optical mechanism from refraction-based to diffraction-based, eliminating chromatic aberration while maintaining focusing functionality.
Solution Approach 2:
The patent implements localized meta-elements with specific geometric configurations tailored to correct optical aberrations at different positions in the optical field. By varying the local properties of meta-lens elements across the aperture, the patent achieves aberration correction while maintaining overall optical function.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The meta-lens system enhances optical resolution beyond physical resolution, enables a lightweight and thin personal immersion display without conventional lenses, and simplifies the component structure, addressing optical issues and increasing resolution capabilities.
Implementation Method 1
The first meta-lens converts incident light from the display area to emit output light directed to the viewing area
Implementation Method 2
The second meta-lens converts the output light provided in the viewing area into parallel light and emits the parallel light directed to outside
Data Source
AI summary
A flat panel display having a meta-lens and a personal immersion display including the same are discussed. The flat panel display can include a display panel including a display area having a first surface area, a first meta-lens disposed on the display panel to correspond to the display area, a transparent layer disposed on the first meta-lens and having a first thickness, a viewing area having a second surface area smaller than the first surface area and defined on an upper surface of the transparent layer, and a second meta-lens disposed on the upper surface of the transparent layer to correspond to the viewing area.