Laser Calibration for Display Module Alignment Accuracy
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Solution Overview
Problem
Current display panel manufacturing processes, particularly in COG and FOG, suffer from alignment accuracy issues due to inadequate attention to the alignment between the glass production platform and press-fit devices, leading to increased manufacturing costs and reduced product competitiveness.
Innovation Solution
A positioning method and device using a laser calibration system with a light source emitter and splitter to monitor and adjust the alignment of a display module between support tables, ensuring that the light source received by the receivers is on the same horizontal line, thereby improving alignment accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If alignment monitoring and adjustment mechanisms are added to the packaging process, then alignment accuracy is improved, but device complexity increases
Solution Approach 1:
The patent applies preliminary action by performing alignment monitoring and adjustment before the actual packaging operation. The light source emitter, splitter, and receivers are positioned to detect alignment status in advance, allowing the support table height to be adjusted before packaging, thus preventing misalignment issues rather than correcting them during the process.
Solution Approach 2:
The patent implements feedback by using receivers to detect the position of light sources emitted from the other side of the display module. The system compares the detected light source positions with expected positions and provides feedback for adjusting the support table height, creating a closed-loop control system that continuously maintains alignment accuracy.
2Reliability
If real-time alignment monitoring is implemented during packaging, then product quality is improved, but manufacturing cost increases
Solution Approach 1:
The patent applies self-service by designing a system where the display module itself participates in the alignment verification process. The display module acts as the medium through which light passes, and its own structure (front and back surfaces) is used as the reference for alignment, eliminating the need for external alignment fixtures or complex measurement equipment.
Solution Approach 2:
The patent uses light as an intermediary to transfer alignment information across the display module. The light source emitter sends light through the module, and the receivers detect the light position, using the light as a mediator to indirectly measure alignment status without requiring direct physical contact or complex measurement tools.
3Measurement precision
If alignment adjustment mechanisms are added to the support tables, then positioning precision is improved, but device complexity increases
Solution Approach 1:
The patent applies dynamics by making the support table height adjustable rather than fixed. The support table can be dynamically adjusted in height to compensate for alignment deviations, transforming a static structure into a dynamic one that can adapt to different alignment requirements, thereby improving positioning precision without requiring complex adjustment mechanisms on the packaging equipment itself.
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 method achieves real-time monitoring and enhances alignment accuracy, improving product yield and quality by ensuring precise positioning of the display module.
Implementation Method 1
a light source emitter and a light source splitter on a same vertical line between the first support table and the second support table; and fixedly connecting the light source emitter and the light source splitter to the first support table
Implementation Method 2
the light source splitter comprises a first receiving end, a first exit end, and a second exit end; the center of the first receiving end and the center of the light source emitter are disposed on a same vertical line; and the center of the first exit end and the center of the second exit end are disposed on the same horizontal line, and the angle between an emitting direction of the first exit end and an emitting direction of the second exit end is 180 degrees
Implementation Method 3
the first receiver receives the first emitted light and records the first data; and the second receiver receives the second emitted light and records the second data
Data Source
AI summary
The present invention provides a positioning method and a positioning device for a display module. The present invention achieves real-time monitoring for the alignment accuracy of a target display module in the horizontal direction by setting a laser calibration device between the target display module and a support table, and determining if a light source received by a receiver in the laser calibration device is disposed on a same horizontal line. The application of the laser calibration device improves alignment accuracy of the target display module and improves yield and quality of the product.