Flat Display Panel Cutting Apparatus Selective Steam Cracking
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Solution Overview
Problem
Conventional flat display panel cutting apparatuses damage regions intersecting in the X-axis and Y-axis directions due to high temperature steam spraying, leading to defects and reduced production yield.
Innovation Solution
A flat display panel cutting apparatus and method that includes a conveyor for feeding panels to a cutting area and a spraying area, where primary cracks are formed using cutting means and then grown into secondary cracks using high temperature steam, selectively targeting cracks in either the X-axis or Y-axis direction to minimize damage and enhance yield.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If high temperature steam is sprayed onto primary cracks in both X-axis and Y-axis directions, then crack growth is achieved, but regions intersecting in the X-axis and Y-axis directions are damaged or broken
Solution Approach 1:
The patent segments the crack growth process by direction. The spraying means is configured to spray high temperature steam selectively onto primary cracks in either the X-axis direction or the Y-axis direction, but not both simultaneously. This segmentation prevents the convergence of steam sprays at intersection regions, thereby avoiding damage to panels at these critical locations while still achieving effective crack growth in the targeted directions.
Solution Approach 2:
The patent applies local quality by making the steam spraying action location-specific and direction-specific. Different regions of the panel (X-axis cracks versus Y-axis cracks) receive steam spraying at different times or in different directions, rather than uniform spraying across all cracks. This localized approach ensures that intersection regions are not subjected to concentrated thermal stress from multiple spray directions simultaneously.
2Productivity
If conventional cutting apparatus is used to form cracks in both X and Y directions, then cutting efficiency is improved, but defects increase at intersection regions
Solution Approach 1:
The patent implements periodic action by alternating the spraying of high temperature steam between X-axis direction cracks and Y-axis direction cracks. Rather than spraying both directions simultaneously or continuously, the system performs spraying in sequential periods - first targeting X-axis cracks, then Y-axis cracks, or vice versa. This periodic, alternating approach maintains cutting efficiency while preventing defect accumulation at intersection regions.
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 defects at intersections, increases panel discharge speed, and improves production yield by selectively growing secondary cracks in specific directions, thereby addressing the damage issues and optimizing the cutting process.
Implementation Method 1
a cutting means positioned in the cutting area, and for forming primary cracks on the flat display panel
Implementation Method 2
a spraying means positioned in the spraying area, and for growing secondary cracks by spraying a high temperature steam onto the first cracks or second cracks
Implementation Method 3
growing secondary cracks by spraying a high temperature steam onto the first cracks or second cracks of the primary cracks
Data Source
AI summary
A flat display panel cutting apparatus that includes a conveyor for feeding a loaded flat display panel to a cutting area and a spraying area; a cutting tool positioned in the cutting area, for forming primary cracks on the flat display panel, the primary cracks including two or more first cracks spaced apart from each other in the X-axis direction and two or more second cracks spaced apart from each other in the Y-axis direction; and a spraying tool positioned in the spraying area, for growing secondary cracks by spraying high temperature steam onto the first cracks or second cracks of the primary cracks formed on the flat display panel.