Protracting Pixel Screen for Accurate 3D Z-Axis Display
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Solution Overview
Problem
Existing 2D displays are limited to two-dimensional representations, failing to accurately depict three-dimensional spaces, leading to distorted representations and limited expressive capabilities, and existing stereoscopic technologies face challenges in precision and cost-effectiveness.
Innovation Solution
A stereoscopic screen device with a protracting/retracting pixel structure, utilizing fixed and movable housing portions on x, y, z-axis coordinates, equipped with a control module, straight driving module, and visual information output, enabling accurate control and dynamic, colorful stereoscopic representation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If step motors are installed in hundreds of pixel cells to adjust protrusion length, then three-dimensional data representation is achieved, but parts cost increases to several tens of millions of won
Solution Approach 1:
The patent extracts the motor component from each pixel cell and replaces it with a passive elastic element (bimetallic strip or shape memory alloy). The active control is concentrated in a single control pixel that sends commands to passive pixels, eliminating hundreds of expensive motors while maintaining 3D representation capability.
Solution Approach 2:
Passive pixels use self-contained elastic elements (bimetallic strips or shape memory alloys) that automatically respond to electrical signals without requiring external motors. The elastic elements themselves perform the protrusion/retraction function, making each pixel self-sufficient and eliminating the need for separate motor assemblies.
2Ease of operation
If clutch method using electromagnet is used to control lifting and lowering screw, then movement control is achieved, but accumulated movement error occurs during continuous use
Solution Approach 1:
The patent replaces the mechanical clutch-electromagnet-screw system with a direct electrical-elastic actuation system. Bimetallic strips and shape memory alloys respond directly to electrical signals through thermal expansion and phase change, eliminating mechanical play and accumulated errors inherent in clutch-based mechanical systems.
Solution Approach 2:
The patent changes the control parameter from mechanical engagement/disengagement (clutch method) to thermal parameter changes in bimetallic strips and shape memory alloys. This allows precise, repeatable positioning by controlling temperature through electrical current, avoiding the cumulative errors of mechanical systems.
3Shape
If fixed 3D model is used to express specific phenomenon, then three-dimensional expression is achieved, but characteristics such as size and direction are distorted
Solution Approach 1:
The patent transforms fixed 3D models into dynamic displays where each pixel can independently change its protrusion length. This allows the display to dynamically represent changing 3D coordinates, vectors, and movements without distortion, as each pixel can be precisely positioned along the z-axis according to real-time data.
Solution Approach 2:
The patent divides the 3D space into discrete pixel units, each capable of independent z-axis positioning. This segmentation allows precise representation of 3D coordinates by controlling individual pixel protrusion lengths, maintaining accuracy while enabling dynamic updates without the distortions of projected 2D representations.
4Measurement precision
If protracting/retracting housing portion is used for each pixel, then accurate z-axis coordinate control is achieved, but device complexity increases
Solution Approach 1:
The patent merges the control function into a single control pixel that manages all other passive pixels. This centralized control approach simplifies the overall system architecture by eliminating the need for separate motor control circuits in each pixel, reducing device complexity while maintaining precise z-axis control through the elastic elements.
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 device provides visually dynamic, colorful, and stereoscopic information by accurately controlling z-axis coordinates, is modular for easy maintenance, and reduces manufacturing costs through replaceable units.
Implementation Method 1
a protracting/retracting housing portion (200) which is installed to surround the fixed housing portion (100), moves in coupling with the bimetallic strip (122)
Implementation Method 2
a protracting/retracting housing portion (200) which is installed to surround the fixed housing portion (100), moves in coupling with the shape memory alloy (122)
Data Source
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AI summary
The purpose of the present invention is to provide a stereoscopic screen device having each pixel configured to protract/retract and method for controlling same, wherein stereoscopic information can be provided. Particularly, the present invention comprises: a fixed housing portion 100 coupled to a mainboard 10 having multiple slots 12 formed thereon, thereby forming each pixel cell of a stereoscopic screen, the fixed housing portion 100 containing a straight driving module 120, PCBs 112 mounted in the slots 12, and a distance sensing module 130; a protracting/retracting housing portion 200 installed to surround the fixed housing portion 100, coupled to the straight driving module 120 and moved accordingly, and configured to detect a distance of movement by the distance sensing module 130; and a visual information output portion 300 configured to output color data transmitted from a computer to the upper area of the protracting/retracting housing portion 200. The stereoscopic screen device having each pixel configured to protract/retract and a method for controlling same, if used, are advantageous in that it is possible to effectively provide visual stereoscopic information which is implemented in terms of x, y, and z axes, and which is dynamic, diversified, and stereoscopic, and the fixed housing portion and the protracting/retracting housing portion are modularized and assembled/installed in mainboard slots, thereby facilitating partial maintenance/repair in the case of malfunctions.