Display Manufacturing Belt Feedback for Precise Tray Positioning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The manufacturing of display devices faces challenges in precise processing due to inaccuracies in positioning and tension control of belts used in the manufacturing apparatus, leading to potential breakage during the manufacturing process.
Innovation Solution
An apparatus and method that include a tray seated on a belt, with a pulley system and sensors for precise positioning and tension adjustment, ensuring accurate movement and preventing foreign substances from interfering with the laser processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a belt is used to transport the tray in the laser processing apparatus, then the tray can be moved to the correct location, but the belt may become loose or stretched causing positioning inaccuracies
Solution Approach 1:
A sensor detects the position of a specific point on the belt, and this position information is fed back to a controller. The controller adjusts the distance between pulleys based on the detected belt position, thereby compensating for belt stretching or loosening and maintaining accurate tray positioning throughout the manufacturing process.
Solution Approach 2:
The distance between the first and second pulleys is made adjustable rather than fixed. The position adjusting portion dynamically changes the pulley separation based on real-time belt condition feedback, allowing the system to adapt to belt elongation or loosening during operation while maintaining precise positioning accuracy.
2Manufacturing precision
If the belt tension is increased to improve positioning accuracy, then the tray positioning becomes more accurate, but the belt may break or the pulley system may be damaged
Solution Approach 1:
The system performs preliminary detection of belt position and tension status before the belt becomes excessively loose or overloaded. By continuously monitoring belt condition and adjusting pulley positions in advance, the system maintains optimal tension without exceeding the belt's strength limits, preventing breakage while ensuring positioning accuracy.
3Object-affected harmful factors
If a window is used to prevent foreign substances during laser processing, then foreign substance contamination is reduced, but the window may interfere with laser transmission or positioning
Solution Approach 1:
A transmission window is introduced as an intermediary component that allows laser beams to pass through while preventing foreign substances generated during laser processing from contaminating the optical path. The window is positioned and designed to minimize interference with laser transmission and positioning accuracy while effectively blocking foreign particles.
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 precise processing and reduces the risk of device breakage by maintaining accurate belt tension and position, enhancing the manufacturing efficiency and quality of display devices.
Implementation Method 1
a sensor portion which detects the position of one point of the belt
Implementation Method 2
a laser irradiating portion disposed outside the first chamber, where the laser irradiating portion radiates laser into the chamber
Implementation Method 3
a transmission window, which is disposed in the chamber and through which the laser transmits
Data Source
AI summary
An apparatus for manufacturing a display device include: a tray on which a window is seated, a belt on which the tray is seated, where the tray is moved by the belt, a first pulley which rotatably supports the belt, a second pulley arranged to be spaced apart from the first pulley, where the second pulley rotatably supports the belt, and a driving portion connected to the second pulley, where the driving portion rotates the second pulley.