Moiré Pattern Phase Variation for Natural Motion Displays
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Solution Overview
Problem
Conventional methods lack the capability to create moiré images with a sense of natural movement.
Innovation Solution
A moiré display system comprising a first and second pattern, where the second pattern is offset from the first pattern by a predetermined distance and has a phase that continuously changes relative to the first pattern, with a phase shift coefficient k varying based on input image features.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional moiré patterns are used, then the basic moiré effect is achieved, but the sense of natural movement is lost
Solution Approach 1:
The patent applies dynamics by making the phase shift coefficient k variable rather than constant. The phase of the second pattern changes continuously relative to the first pattern according to a function, creating dynamic moiré fringes that appear to move. This transforms the static conventional moiré pattern into a dynamic one that adapts to different viewing conditions and creates the desired movement sensation.
Solution Approach 2:
The patent changes the parameter of phase shift from a fixed value to a continuously varying parameter. By introducing a phase shift coefficient k that varies according to a function (such as linear, quadratic, or sinusoidal functions), the moiré pattern's characteristics change across different regions, creating the illusion of movement while maintaining manufacturability through mathematical modeling.
2Adaptability or versatility
If the phase of the second pattern is made to continuously change relative to the first pattern, then a sense of movement is produced, but the pattern complexity increases
Solution Approach 1:
The patent uses mathematical functions to generate the phase variation pattern, effectively copying natural movement characteristics into the moiré pattern. By using standard mathematical functions (linear, quadratic, sinusoidal), the complex natural movement sensation is replicated through simple, well-understood mathematical models, managing complexity through abstraction.
Solution Approach 2:
The patent introduces a new dimension of phase variation by making the phase shift coefficient k a function of position rather than a constant. This adds a spatial dimension to the phase parameter, transforming the pattern from two-dimensional (amplitude and position) to three-dimensional (amplitude, position, and phase gradient), which creates the movement sensation without requiring physical three-dimensional structures.
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 the production of moiré images with a sense of movement by generating a moiré-producing pattern using input images and data, enhancing the immersive experience.
Implementation Method 1
The term 'moiré' refers to interference fringes observed when a plurality of periodic patterns or structures are superimposed on each other. Further, in physical terms, moiré is a beat phenomenon between two spatial frequencies.
Implementation Method 2
moiré is a beat phenomenon between two spatial frequencies
Data Source
AI summary
A pattern for producing a moiré image with a sense of movement and technique for creating such patterns. A moiré display includes: a first pattern; and a second pattern disposed offset from the first pattern by a predetermined distance, the second pattern having a phase which continuously changes relative to the first pattern in at least one region. For example, a moiré image with a sense of movement can be produced when the second pattern has a phase that changes according to a function in at least one section. Accordingly, a moiré image with a sense of natural movement can be produced by inputting an input image and data such as a feature value of the input image.