Four-Dimensional Light Field Display System
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Solution Overview
Problem
Existing display systems fail to achieve high-resolution light-field imaging.
Innovation Solution
A display system based on a four-dimensional light field, comprising a light source module, a reflective liquid crystal display panel, and a light conduction component that includes an optical waveguiding structure, adhesive layer, and light extraction structure, allowing for total reflection transmission and precise control of light rays to achieve high-resolution imaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional display systems are used, then the system structure is simple, but high-resolution light field imaging cannot be achieved
Solution Approach 1:
The display system is divided into three independent modules: light source module, display panel, and light conduction component. Each module performs a specific function - light sources generate light rays, the display panel modulates them with image information, and the light conduction component transmits them to the target position. This segmentation enables high-resolution light field imaging while keeping each module's structure relatively simple.
Solution Approach 2:
The light conduction component acts as an intermediary between the light source module and the display panel. It includes an optical waveguiding structure that transmits light rays, an adhesive layer that bonds components, and a light extraction structure that directs light to the target position. This intermediary component enables precise control of light paths without requiring direct integration of all components.
2Reliability
If light rays are transmitted through the optical waveguiding structure, then total reflection transmission is achieved, but light extraction efficiency needs improvement
Solution Approach 1:
The light extraction structure utilizes the side face dimension of the optical waveguiding structure to extract light rays. By arranging the light extraction structure on the side face rather than only on the top or bottom surfaces, the system achieves efficient light extraction while maintaining the total internal reflection transmission through the waveguide structure.
Solution Approach 2:
The optical waveguiding structure has different functional regions: the main body maintains total internal reflection for stable transmission, while the side face region includes light extraction structures that locally modify the light path. This local quality variation enables both reliable transmission and efficient extraction simultaneously.
3Measurement precision
If four-dimensional light field parameters are used, then imaging resolution is improved, but data processing complexity increases
Solution Approach 1:
The system transitions from conventional two-dimensional image display to four-dimensional light field imaging by adding spatial and angular dimensions. The light source module and display panel are positioned at specific four-dimensional coordinates, enabling precise control of light rays in multiple dimensions while the system architecture itself manages the data processing requirements.
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
Enables high-resolution light-field imaging by determining four-dimensional parameters of light rays, supporting multi-image-point imaging, and reducing data volume through dimensionality reduction of the plenoptic function, thereby enhancing image quality and display capabilities.
Implementation Method 1
the optical waveguiding structure is configured to achieve total reflection transmission of light rays at a set angle
Implementation Method 2
a refractive index of the adhesive layer is smaller than or equal to a refractive index of the optical waveguiding structure, and the refractive index of the adhesive layer is larger than a refractive index of air
Implementation Method 3
the light extraction structure is a transmission grating
Implementation Method 4
the polarizing element is arranged between the light source module and the polarization reflection layer and is configured to convert the light rays emitted by the light sources into the first polarized light
Implementation Method 5
the polarization reflection layer is configured to transmit first polarized light and reflect second polarized light
Implementation Method 6
the first quarter-wave phase retarder is arranged between the display panel and the polarization reflection layer; the second quarter-wave phase retarder is arranged between the semi-transmitting and semi-reflecting layer and the polarization reflection layer
Data Source
AI summary
A display system based on a four-dimensional light field, and a display method therefor. The display system includes: a light source module (11), a display panel (12), and a light conduction component (13), wherein the light source module (11) includes a plurality of light sources arranged in an array; and the display panel (12) is a reflective liquid crystal display panel, and the display panel (12) includes a plurality of pixel units arranged in an array. Light emitted by the light sources in the light source module (11) irradiates the pixel units in the display panel (12); and the pixel units in the display panel (12) transmit the received light to a target position by means of the light conduction component (13).