Display Element With Floating Image Using Multi-Grid Optical Contrast
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Solution Overview
Problem
Existing display elements fail to create a pronounced floating effect with sufficient contrast between light spots above and below the surface, as the light spots appear to float only at a small distance and have limited contrast.
Innovation Solution
The arrangement of optical elements in multiple grids with different types and orientations, such as concave and convex Fresnel mirrors, allows for varying floating heights and increased optical contrast, enhancing the floating effect by positioning foreground and background motifs at distinct distances from the substrate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If optical elements are arranged in a single grid, then the device complexity is low, but the floating effect is not pronounced and contrast is limited
Solution Approach 1:
The patent divides the optical elements into multiple grids (first grid, second grid, third grid) with different orientations and focal planes. Each grid contains optical elements of specific types (convex, concave, flat) arranged in predetermined patterns, creating distinct light spot grids at different floating heights. This segmentation enables enhanced optical contrast and pronounced floating effect by separating foreground, midground, and background motifs in the z-direction.
Solution Approach 2:
The patent extends the arrangement from a two-dimensional single grid to a three-dimensional multi-grid structure by introducing vertical separation (different distances from the lower side of the substrate). The optical elements are positioned at different z-heights, creating light spot grids at different floating heights, thereby utilizing the third dimension to enhance depth perception and optical contrast.
2Illumination intensity
If optical elements are positioned at the same distance from the substrate, then the manufacturing precision is easier to maintain, but the floating effect is not enhanced
Solution Approach 1:
The patent segments the optical elements into multiple groups positioned at different distances from the substrate (first distance, second distance, third distance). Each segment corresponds to a specific grid and creates light spots at different floating heights, enabling enhanced floating effect through vertical stratification while maintaining manageable manufacturing complexity through modular grid design.
Solution Approach 2:
The patent creates a dynamic floating effect by positioning optical elements at varying distances from the substrate, causing light spots to appear at different heights when viewed from various angles. This dynamic perception of depth is achieved through fixed spatial arrangement of optical elements at predetermined distances, creating the illusion of floating motifs at multiple z-levels.
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 significantly enhances the optical contrast and depth perception, enabling a clearer and more attractive display of sharp-edged objects with higher resolution without compromising the depth effect.
Implementation Method 1
The optical elements are formed by refractive and/or reflective optical elements, wherein each light spot of the light spot image is associated with at least one refractive and/or reflective optical element that contributes, when the display element is illuminated, to generating the light spot associated therewith.
Implementation Method 2
The optical elements are formed by refractive and/or reflective optical elements, wherein each light spot of the light spot image is associated with at least one refractive and/or reflective optical element that contributes, when the display element is illuminated, to generating the light spot associated therewith.
Implementation Method 3
The first type of optical elements in this case comprises Fresnel lenses or Fresnel mirrors and the second type of optical elements comprises concave mirrors or convex mirrors
Data Source
AI summary
A display element having a substrate having a plurality of optical elements. The optical elements of a first grid consist of a first type of optical elements and the optical elements of a second grid consist of a second type of optical elements. The first type of optical elements is different from the second type of optical elements. In the event of tilting of the display element, the light spots 5 of the concave and convex mirror surfaces in this case move synchronously in opposing directions in the direction of the arrows, such that an observer 4 observes a particularly pronounced dynamic floating effect.