Floating Display Device with Auxiliary Imaging Patterns
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Solution Overview
Problem
Current floating display technologies often project incomplete or no images when viewed from angles other than directly in front, limiting their usability and user experience.
Innovation Solution
A floating display device incorporating a display light source, an optical imaging sheet, and a micro-lens array sheet, where the optical imaging sheet includes sub-imaging units arranged to form auxiliary imaging patterns, enhancing the viewing angle by providing an auxiliary display image that can be seen from tilted angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional floating display projects an image directly in front of the user, then the display image can be clearly seen from the front, but the viewing angle is limited and the image becomes incomplete or invisible when viewed from tilted angles
Solution Approach 1:
The optical imaging sheet is divided into multiple sub-imaging units (first sub-imaging units and second sub-imaging units) that are arranged in specific patterns. Each sub-imaging unit contributes to forming different portions of the display image, with the second sub-imaging units specifically configured to form auxiliary imaging patterns that extend the viewing angle while maintaining image completeness from the front.
2Adaptability or versatility
If the optical imaging sheet uses only first sub-imaging units with main imaging patterns, then the display structure is simple, but the viewing angle is narrow and the image is not visible from tilted angles
Solution Approach 1:
Different regions of the optical imaging sheet are assigned different functions: the first sub-imaging units are distributed to form the main display image, while the second sub-imaging units are strategically positioned to form auxiliary imaging patterns specifically for extending the viewing angle. This local differentiation allows the system to achieve wide viewing angle without unnecessarily complicating the entire structure.
Solution Approach 2:
The patent introduces a spatial dimension solution by arranging second sub-imaging units in specific geometric patterns (such as triangular or quadrilateral arrangements) around the main imaging areas. This dimensional arrangement creates auxiliary imaging patterns that project light at different angles, effectively adding angular coverage without increasing the temporal or functional complexity of the display system.
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 allows users to see a wide-viewing angle display image, improving user experience and expanding the application range of floating display technology by enabling image visibility from various angles.
Implementation Method 1
a micro-lens array sheet (400) corresponding to the display light source (200), wherein the micro-lens array sheet (400) comprises a plurality of micro-lenses (402u) arranged in an array
Implementation Method 2
an optical imaging sheet (300) disposed between the display light source (200) and the micro-lens array sheet (400), wherein the optical imaging sheet (300) comprises a plurality of sub-imaging units (302u) arranged in an array corresponding to the micro-lenses (402u)
Data Source
AI summary
A floating display device which includes a display light source, an optical imaging sheet and a micro-lens array sheet is provided. The micro-lens array sheet has a plurality of micro-lenses arranged in an array. The optical imaging sheet has a plurality of sub-imaging units arranged in an array corresponding to the micro-lenses. The sub-imaging unit includes a plurality of first sub-imaging units and a plurality of second sub-imaging units. Each of the first sub-imaging units has a first main imaging pattern, and each of the second sub-imaging unit has a second main imaging pattern. The first main imaging pattern and the second main imaging pattern have the same pattern. Wherein, the second sub-imaging units are arranged to form an auxiliary imaging pattern. At least a number of the second sub-imaging units respectively include a base imaging pattern, and the base imaging pattern is located around the second main imaging pattern.