Height Adjustable Display Linkage for Synchronized Projection
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Solution Overview
Problem
Existing display devices with height-adjustable panels and projection systems suffer from image distortion and mechanical instability due to asynchronous height adjustments, leading to sluggish performance and potential shaking of the projection device when electric motors are activated.
Innovation Solution
A mechanical connecting device ensures parallel displacement of the display panel and projection device, maintaining a consistent vertical distance and projection angle, eliminating the need for complex electric servomotors and control systems, and utilizing a flexible connecting element like a cable or chain with a deflection element to achieve synchronized vertical movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If electric motors are used to adjust the height of the display panel and projection device, then height adjustment is achieved, but the system becomes sluggish and experiences shaking when motors are activated
Solution Approach 1:
The patent replaces the electric motor-driven mechanical adjustment system with a pure mechanical linkage system. The linkage device includes connecting elements that passively couple the display panel and projection device, allowing height adjustment through manual or gravitational forces while eliminating motor-induced shaking and control delays.
Solution Approach 2:
The mechanical linkage device acts as an intermediary between the display panel and projection device. It includes deflection elements and connecting elements that transmit and coordinate movement between the two components, ensuring synchronized height adjustment without direct motor coupling.
2Manufacturing precision
If complex control systems with multiple motor drives are implemented, then synchronized height adjustment is achieved, but device complexity increases
Solution Approach 1:
The patent eliminates complex electronic control systems and multiple motor drives by implementing a passive mechanical linkage. The linkage device uses connecting elements and deflection elements to passively synchronize the height adjustment of the display panel and projection device, reducing complexity while maintaining positioning accuracy.
3Stability of the object's composition
If rigid connecting structures are used to link the projection device and display panel, then structural stability is improved, but the system becomes less adaptable to height adjustments
Solution Approach 1:
The patent employs dynamic mechanical elements including flexible connecting elements and rotatable deflection elements in the linkage device. These components allow the system to adapt to height changes while maintaining structural integrity, enabling smooth transitions between different display configurations.
Solution Approach 2:
The patent uses flexible connecting elements within the mechanical linkage device to connect the projection device and display panel. These flexible elements provide the necessary compliance to accommodate height adjustments while maintaining sufficient structural stability for proper alignment.
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 maintains image stability and projection field integrity, reduces susceptibility to errors, avoids wobbling, and is more economical and maintenance-friendly, while allowing for retrofittability and minimizing the need for powerful electric motors.
Implementation Method 1
the connecting element is guided around the deflection element in such a way that a change in direction occurs as a result
Implementation Method 2
By providing at least one deflection element, it can be ensured that a vertical displacement of the display panel also causes a vertical displacement of the projection device in the same direction
Data Source
Figure 1~2
AI summary
The display device has a recordable height adjustable display panel (10) and a height adjustable projection unit (18) for projection of images on the display panel. The mechanical connecting units (20,22) are provided, which connects the display panel with the projection unit. The connecting unit has a flexible connecting element that is led around a detour element.