Mother Panel Heat Dissipation Layout for Laser-Cut Displays
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Solution Overview
Problem
Laser cutting of display panels generates heat that can damage organic layers, compromising the manufacturing process reliability.
Innovation Solution
A mother panel design with a cutting line and a heat dissipation pattern that redirects heat away from the display panel area to a dummy area, using a first heat dissipation pattern with lower rods and a body portion to minimize heat transmission to the display panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If laser cutting is used to separate the display panel from the mother panel, then productivity is improved, but heat is generated that can damage organic layers in the display panel
Solution Approach 1:
A heat dissipation pattern is introduced as an intermediary element between the laser cutting path and the organic layers. This pattern includes a rod portion extending from the display panel area into the dummy area, and a body portion in the dummy area that contacts the rod portion. The heat dissipation pattern acts as a thermal mediator that redirects heat away from the organic layers toward the dummy area, thereby protecting the organic layers from laser-induced heat damage while maintaining the productivity benefits of laser cutting.
2Object-affected harmful factors
If a heat dissipation pattern is added to redirect heat away from the display panel area, then heat damage to organic layers is reduced, but device complexity increases
Solution Approach 1:
The heat dissipation pattern is segmented into two distinct functional portions: a rod portion that extends from the display panel area into the dummy area to capture and redirect heat, and a body portion located in the dummy area that contacts the rod portion to serve as a heat sink. This segmentation allows the heat dissipation function to be integrated into the existing mother panel structure without requiring a completely new complex system, thereby reducing heat damage while minimizing the increase in device complexity.
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 design effectively reduces heat transmission to the display panel, minimizing damage to organic layers and improving process reliability, thereby enhancing the quality and efficiency of display panel production.
Implementation Method 1
a first heat dissipation pattern on the mother substrate, extending from the display panel area to the dummy area to overlap the cutting line
Data Source
AI summary
A mother panel for a display panel includes: a mother substrate including a display panel area and a dummy area surrounding the display panel area, the mother substrate having a cutting line defined thereon, wherein the cutting line is configured to be irradiated by a laser along a boundary between the display panel area and the dummy area; and a first heat dissipation pattern on the mother substrate, extending from the display panel area to the dummy area to overlap the cutting line, and including a first rod portion including a plurality of lower rods spaced apart from each other and a first body portion in the dummy area and contacting the first rod portion.