Light Path Conversion Display Panel for Compact Optical Systems
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Solution Overview
Problem
Existing display systems are bulky and heavy, limiting their portability and usability in applications requiring compact designs.
Innovation Solution
Incorporation of a light path conversion unit, such as a Fresnel lens, on the pixel structure layer to converge and redirect light, combined with a reflective layer and other optical components to reduce the size and weight of the display system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If conventional display structures are used, then display functionality is achieved, but size and weight increase
Solution Approach 1:
The patent combines multiple optical functions (light emission, light guiding, light convergence) into an integrated display panel structure. The pixel structure layer integrates light-emitting elements with the light path conversion unit, eliminating the need for separate optical components and reducing overall system weight and complexity.
Solution Approach 2:
The patent introduces a light path conversion unit with specific optical properties that redirects light from the pixel structure layer through controlled refraction or reflection. This dimensional optimization of light paths allows for a more compact display system design, reducing the vertical thickness and overall size of the display assembly.
2Volume of moving object
If compact design is implemented, then portability improves, but optical performance may deteriorate
Solution Approach 1:
The light path conversion unit is designed with spatially varying optical properties, where different regions have different refractive indices or surface curvatures optimized for their specific functions. This local optimization ensures that light from each pixel region is properly directed and concentrated, maintaining high illumination intensity despite the compact overall size.
Solution Approach 2:
The patent utilizes materials and structures with specific optical parameters (refractive index, absorption coefficient, surface geometry) that are optimized to maintain light output quality in a compact form. By carefully controlling these parameters in the light path conversion unit, the system achieves both small size and high illumination performance.
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 solution effectively reduces the size and weight of the display system, enhancing its portability and suitability for applications like head-mounted displays.
Implementation Method 1
the light path conversion unit may include a Fresnel lens on the pixel structure layer
Implementation Method 2
a light path conversion unit on the pixel structure layer, and configured to convert a path of light generated from the pixel structure layer
Implementation Method 3
the light path conversion unit may include a reflective layer
Data Source
AI summary
In an embodiment of the present disclosure, provided is display panel including: a substrate; a pixel structure layer on the substrate, and including a plurality of sub-pixels; and a light path conversion unit on the pixel structure layer, and to convert a path of light generated from the pixel structure layer.