Belt-Driven Display Panel Movement to Prevent Tilt and Noise
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Solution Overview
Problem
Existing display devices face challenges in opening and closing the front surface of the display panel without tilting, generating friction noise, and causing wear to the driving module, while also risking the belt from being wound in a loose or folded state during movement.
Innovation Solution
A display device design incorporating a frame structure with a roller, pulley, motor, and belt system that allows the display panel to move smoothly, minimizing tilting and noise, reducing wear, and preventing the belt from being wound loosely.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a belt is used to move the display panel, then the display panel can be moved smoothly, but the belt may be wound in a loose or folded state causing friction noise and wear
Solution Approach 1:
A guide groove is introduced as an intermediary structure between the belt and the housing. The guide groove receives and guides the belt, preventing it from folding or winding in a loose state during movement. This intermediary structure ensures the belt maintains proper tension and alignment, eliminating friction noise while preserving smooth movement.
2Ease of operation
If the display panel is moved using a driving module, then the front surface can be opened and closed, but tilting left and right occurs during movement
Solution Approach 1:
The belt is extracted from a continuous loop configuration and converted into a linear structure with fixed ends. One end of the belt is fixed to the housing while the other end is connected to the display panel. This extraction of the belt's circular configuration eliminates the possibility of tilting during movement, ensuring panel stability while maintaining the opening and closing function.
3Reliability
If the belt is stretched tightly to prevent folding, then wear is reduced, but friction noise increases during movement
Solution Approach 1:
The guide groove acts as an intermediary that allows the belt to maintain appropriate tension without excessive tightness. The groove's geometry ensures the belt follows a proper path, preventing folding and reducing wear while avoiding the friction noise that would result from over-tensioning the belt.
4Device complexity
If a simple driving mechanism is used, then device complexity is reduced, but the belt cannot be prevented from winding loosely
Solution Approach 1:
The driving mechanism is segmented into distinct functional components: the motor, the belt with fixed ends, and the guide groove structure. The guide groove is specifically segmented as a separate structural element that provides positioning functionality. This segmentation allows the system to prevent belt winding without significantly increasing overall complexity, as each component performs a specific function.
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 enables a display device that effectively opens and closes the front surface, minimizes tilting and noise, reduces wear on the driving module, and prevents belt folding, enhancing the overall operational stability and durability.
Implementation Method 1
a motor configured to provide torque to the roller
Implementation Method 2
a pulley coupled to the second frame; the belt is stretched over the pulley
Data Source
AI summary
A display device is provided. The display device of the present disclosure includes: a display panel; a frame including a first frame disposed adjacent to a first side of the display panel, and a second frame disposed adjacent to a second side of the display panel; and a driving module configured to move the display panel in a direction in which the first frame and the second frame are spaced apart from each other, wherein the driving module includes: a roller coupled to the first frame; a pulley coupled to the second frame; a motor configured to provide torque to the roller; and a belt having a first end fixed to the roller and a second end fixed to the display panel, wherein the belt is stretched over the pulley at a position between the first end and the second end of the belt.