Coating Device Stage Alignment for Display Holes
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Solution Overview
Problem
Existing coating devices lack efficient processes for aligning and coating liquid materials on display devices, particularly in areas with complex geometries like holes, which affects process efficiency and precision.
Innovation Solution
A coating device with a stage transfer part, stage tilting part, stage rotating part, and stage aligning part that allows for precise movement and alignment of the stage with a nozzle portion, enabling the coating of liquid materials on edges and within holes of display devices, utilizing a monitoring camera for real-time monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional coating device is used, then the device structure is simple, but the alignment precision and coating accuracy on complex geometries are insufficient
Solution Approach 1:
The stage is divided into multiple independent movement components: a transfer part for positioning, a tilting part for angle adjustment, and a rotating part for orientation. Each component handles a specific degree of freedom, enabling precise alignment through coordinated movement rather than a single complex mechanism.
Solution Approach 2:
The stage incorporates dynamic movement capabilities with the tilting part able to rotate within a predetermined angle range and the rotating part able to rotate 360 degrees. This dynamic flexibility allows the stage to adapt to various coating positions and angles, achieving high precision on complex geometries.
2Adaptability or versatility
If the stage is fixed in position, then the device structure is simple, but the coating coverage on complex geometries is limited
Solution Approach 1:
The stage is designed with multiple degrees of freedom including translation along X and Y axes, tilting rotation within a predetermined angle range, and 360-degree rotation. This dynamic configuration enables the stage to reach various positions and orientations, providing comprehensive coating coverage on complex geometries such as holes and edges.
Solution Approach 2:
The multi-axis stage mechanism serves multiple functions: positioning the substrate, adjusting coating angles, and accessing different geometric features. This universal stage design replaces the need for multiple specialized fixtures, enabling a single device to handle diverse coating requirements.
3Manufacturing precision
If real-time monitoring is not implemented, then the device structure is simple, but the coating quality control is insufficient
Solution Approach 1:
A monitoring camera is integrated into the stage to capture real-time images of the coating process. The camera provides visual feedback that can be used to verify coating quality, detect defects, and ensure precise alignment, enabling closed-loop quality control.
Solution Approach 2:
The monitoring camera creates a visual copy or image of the coating process, allowing operators to observe and analyze the coating quality without physically interfering with the process. This optical copying enables non-intrusive real-time quality assessment.
Data Source
AI summary
A coating device includes: a stage transfer part including a first long shaft extending in a first direction and a second long shaft extending in a second direction intersecting the first direction; a stage tilting part disposed on the stage transfer part, where the stage tiling part swings about a first swing axis; a stage rotating part disposed on the stage tilting part, where the stage rotating part rotates about a first rotating axis intersecting the first swing axis; a stage aligning part disposed on the stage rotating part, where the stage aligning part includes a first short shaft extending in the first direction and a second short shaft extending in the second direction; and a stage disposed on the stage aligning part, wherein a coating target is seated on the stage, where the stage includes a monitoring camera disposed in a camera seating space defined inside the stage.