3D Display Phase Modulator Curved Virtual Image Depth
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Solution Overview
Problem
Current three-dimensional display technologies for virtual reality struggle to create immersive, depth-rich images efficiently, often requiring larger form factors and limited angles of view due to the need for extensive optical paths and complex alignment of liquid crystal molecules.
Innovation Solution
A three-dimensional display apparatus incorporating a transmissive phase modulator with liquid crystal layers and electrode blocks, which performs phase modulation on light to convert planar images into curved virtual images with depth, integrated with an optical path adjustment liquid crystal cell to enhance scene depth and reduce device size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a transmissive phase modulator with liquid crystal layers and electrode blocks is used to perform phase modulation on light, then planar images are transformed into curved virtual images with depth, but the device complexity and optical path alignment requirements increase
Solution Approach 1:
The phase modulator is divided into multiple electrode blocks that can be independently controlled, allowing segmented phase modulation across different regions of the liquid crystal layer. This enables complex curved image formation through coordinated control of individual electrode blocks, resolving the contradiction between achieving depth-rich curved images and managing device complexity
Solution Approach 2:
The patent introduces a temporal dimension by dynamically adjusting the refractive index of liquid crystal molecules through voltage control, enabling phase modulation in the time domain. This allows the system to achieve curved virtual images with depth without requiring complex spatial optical path alignment, as the phase modulation is achieved through temporal variation of optical properties
2Shape
If optical path adjustment liquid crystal cell is added to enhance scene depth, then user immersion is improved, but the device size and optical path complexity increase
Solution Approach 1:
The patent combines the phase modulation function and optical path adjustment function into a single integrated liquid crystal layer structure. The same liquid crystal molecules perform both phase modulation for curved image formation and optical path adjustment for scene depth enhancement, eliminating the need for separate optical components and reducing overall device volume
Solution Approach 2:
The liquid crystal layer is designed to perform multiple functions simultaneously: it acts as both the phase modulator for creating curved virtual images and the optical path adjuster for enhancing scene depth. This multi-functionality reduces the number of separate components needed, thereby minimizing device size while achieving both image curvature and depth enhancement
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
This solution enables a compact virtual reality device with a larger angle of view by transforming planar images into depth-rich curved images, improving user immersion while minimizing device size and optical path complexity.
Implementation Method 1
each of the modulation units is configured to perform phase modulation on light received by the modulation unit
Implementation Method 2
a first liquid crystal layer disposed between the two first electrode layers
Data Source
AI summary
A three-dimensional display apparatus includes: a display layer and a transmissive phase modulator, wherein the transmissive phase modulator is disposed on a light exit side of the display layer, and includes a plurality of modulation units; and each of the modulation units is configured to perform phase modulation on light received by the modulation unit, and is configured such that a picture displayed by the display layer is presented as a contiguous curved virtual image after being processed by the transmissive phase modulator.