Deformable 3D Display Surface via Electromagnetic Peg Actuation
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Solution Overview
Problem
Current 3D display technologies struggle to create realistic and immersive experiences, especially in interactive environments where viewers move freely, as they lack dynamic shadows and parallax effects, and rely on complex image alignments and static projection surfaces.
Innovation Solution
A 3D display system with a deformable surface using an array of individually addressable pegs and electromagnetic coils to create a variable topography, combined with an optics generator for image projection, allowing the display screen to change shape and illuminate images dynamically to enhance depth perception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a planar projection surface is used, then the display system is simple and easy to manufacture, but the depth perception and realism are diminished
Solution Approach 1:
The patent employs a deformable projection surface that can dynamically change its topography using an array of individually addressable pegs. Each peg can be actuated to different positions along the z-axis, allowing the surface to transition between flat and three-dimensional configurations. This dynamic capability enables the system to create realistic depth perception and parallax effects while maintaining manufacturing simplicity through the modular peg array design.
Solution Approach 2:
The invention introduces a third dimension (z-axis) to the traditionally two-dimensional projection surface by using vertically movable pegs. These pegs create height variations that form three-dimensional topographies, enabling viewers to experience realistic depth, shadows, and parallax effects. The dimensionality change is achieved through the electromagnetic actuation of pegs to different z-positions, transforming the projection surface from planar to volumetric.
2Measurement precision
If electromagnetic coils are used to actuate pegs, then precise control of peg position is achieved, but energy consumption increases
Solution Approach 1:
The system implements selective actuation where only the specific pegs corresponding to the current image frame's requirements are activated by electromagnetic coils. Rather than continuously energizing all coils, the control system identifies which pegs need to change position and applies magnetic fields only to those local regions. This localized approach maintains precise position control for the displayed image while significantly reducing overall energy consumption compared to full-array continuous actuation.
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 system provides a more robust and immersive 3D experience by embedding projected images with the deformed surface, maintaining clarity and realism without additional hardware like 3D goggles, and enabling haptic feedback and dynamic image display.
Implementation Method 1
an induction array having multiple electromagnetic coils to generate electromagnetic fields. The electromagnetic fields may induce magnetic forces upon at least one peg to cause the peg to move along an axis into an actuated position
Data Source
AI summary
A three-dimensional (3D) display system may include a peg array of multiple pegs. Each peg may be individually addressable and designed to move along one or more axes. The 3D display system may also include an induction array having multiple electromagnetic coils to generate electromagnetic fields. The electromagnetic fields may induce magnetic forces upon at least one peg to cause the peg to move along an axis into an actuated position. The 3D display may also include a display screen to be distended into a 3D topography via contact with at least one peg in the actuated position.