Variable Lens and Gap Control for Moire Reduction
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Solution Overview
Problem
Existing display devices struggle with the recognition of moire patterns when providing stereoscopic images without the use of stereoscopic glasses, particularly in glasses-free methods like the lenticular and barrier methods.
Innovation Solution
A parameter determination system and method that adjusts the size of variable lenses and the lens-panel gap in an optical panel based on image analysis at different viewing distances to minimize moire recognition, utilizing a controller and magnet units to control lens width and gap distance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If fixed lens width and gap distance are used in the optical panel, then the device structure is simple, but moire patterns are recognized by users at different viewing distances
Solution Approach 1:
The patent implements variable lenses with adjustable widths and variable gap distances between the optical panel and display panel. These parameters can be dynamically changed based on viewing distance to prevent moire patterns, transforming the static optical system into a dynamic one that adapts to different viewing conditions
Solution Approach 2:
The system changes physical parameters (lens width, gap distance) to optimize optical performance at different viewing distances. By adjusting these parameters, the patent eliminates moire patterns while maintaining a relatively simple overall device structure
2Use of energy by moving object
If the lens width is increased to improve light transmission, then the stereoscopic effect is enhanced, but the field of view is reduced and moire patterns occur
Solution Approach 1:
The patent uses variable lenses that can dynamically adjust their width based on viewing distance. At closer viewing distances, the lens width increases to improve light transmission and stereoscopic effect, while at farther distances, the lens width decreases to prevent moire patterns, creating a dynamic optimization of light transmission versus moire prevention
Solution Approach 2:
The system dynamically changes the lens width parameter to balance light transmission and moire prevention. By adjusting this parameter according to viewing distance, the patent achieves optimal light transmission without the harmful effects of moire patterns
3Object-affected harmful factors
If the gap distance between optical panel and display panel is increased to reduce moire, then moire recognition is reduced, but the device thickness increases
Solution Approach 1:
The patent implements a variable gap distance between the optical panel and display panel that can be dynamically adjusted based on viewing distance. This allows the system to maintain a compact form factor while preventing moire patterns when needed, rather than requiring a permanently large gap distance
Solution Approach 2:
The system changes the gap distance parameter dynamically to prevent moire patterns only when necessary. By adjusting this parameter based on viewing distance, the patent reduces moire recognition without requiring a permanently increased device thickness
4Object-affected harmful factors
If variable lenses with adjustable width are used to prevent moire, then moire recognition is reduced, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent implements variable lenses that can adjust their width, providing a dynamic solution to moire prevention. While this increases manufacturing complexity compared to fixed lenses, it enables the system to adapt to different viewing distances and eliminate moire patterns effectively
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
Effectively reduces moire patterns by dynamically adjusting lens width and gap distance, ensuring a more natural stereoscopic image experience across varying viewing distances.
Implementation Method 1
at least one of the first magnet unit and the second magnet unit may be an electromagnet, and the controller may output an electromagnet control signal for imparting magnetism to the at least one of the first magnet unit and the second magnet unit or removing magnetism from the at least one of the first magnet unit and the second magnet unit
Implementation Method 2
an optical panel including a plurality of variable lenses... The display panel includes a plurality of sub-pixels... providing images to a user
Data Source
AI summary
A parameter determination system includes an optical panel including a plurality of variable lenses. A display panel is positioned to overlap with the optical panel and is spaced apart from the display panel by a lens-panel gap. The display panel includes a plurality of sub-pixels. A panel viewing distance controller adjusts a viewing distance between the optical panel and an imaging device capturing the optical panel. A controller outputs a signal for adjusting at least one of a size of a lens width of the plurality of variable lenses and a distance of the lens-panel gap, based on images of the display panel captured by the imaging device at different viewing distances.