Mother Substrate Support Members for Display Panel Cutting
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Solution Overview
Problem
The manufacturing of display panels faces challenges in reducing defect rates and preventing chipping during the cutting process of mother substrates, which affects the quality and strength of the final display panels.
Innovation Solution
A mother substrate design featuring first and second support members made of reflective material, strategically positioned to support the substrate and encapsulation substrate, ensuring constant pressure is applied during cutting, thereby preventing chipping and sagging, and maintaining light intensity by reflecting emitted light.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the mother substrate is cut to separate display panels, then individual display panels can be obtained, but chipping and defects occur during the cutting process
Solution Approach 1:
The patent applies preliminary action by forming support members on the mother substrate before the cutting process. These support members are positioned to provide structural reinforcement to the substrate and encapsulation substrate during cutting, preventing chipping and defects that would otherwise occur during the separation of individual display panels.
2Manufacturing precision
If support members are added to prevent chipping during cutting, then cutting quality improves, but the device structure becomes more complex
Solution Approach 1:
The support members serve multiple functions: they provide mechanical support during cutting to prevent chipping, maintain constant pressure on the encapsulation substrate, and reflect light emitted from the display structure. By combining these functions into a single component, the patent avoids increasing device complexity while achieving multiple benefits.
Solution Approach 2:
The support members act as intermediary elements between the substrate and the cutting process. They mediate the mechanical stress during cutting by distributing forces and providing structural reinforcement, thereby preventing direct contact between the cutting tool and the fragile substrate edges.
3Illumination intensity
If the first support member overlaps the display structure, then light intensity is maintained by reflecting emitted light, but the support member thickness must be carefully controlled
Solution Approach 1:
The patent applies local quality by positioning the first support member to overlap only the display structure in specific regions where light emission occurs. This localized arrangement allows the support member to reflect light and maintain intensity without requiring uniform thickness across the entire substrate, thereby simplifying the overall design.
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 effectively reduces defect rates and enhances the strength of display panels by preventing chipping and maintaining light intensity, improving manufacturing efficiency and display quality.
Implementation Method 1
the first support member and the second support member may include a reflective material
Data Source
AI summary
A mother substrate for a display panel includes a first substrate including a panel area and a peripheral area surrounding at least one side of the panel area, a second substrate disposed on a first surface of the first substrate, a first support member disposed on a second surface of the first substrate opposite to the first surface of the first substrate in a first direction, the first support member overlapping the panel area of the first substrate in a plan view, and a second support member disposed on the second surface of the first substrate, the second support member overlapping the peripheral area of the first substrate in a plan view.