LCD Glass Lapping Apparatus with Shear-Driven Fixing Part
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Solution Overview
Problem
Existing lapping methods for LCD glass on mobile devices face challenges in applying appropriate force and maintaining abrasive powder contact, leading to inefficient scratch removal without separating the glass from the liquid crystal panel.
Innovation Solution
A lapping apparatus with a processing part and a fixing part that rotates relative to the processing part, using a jig and pad system to securely hold and polish the glass surface, along with a cooling system and adjustable components for precise control and even polishing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a small polishing instrument is used with a CNC machine to polish the glass surface, then the polishing can be performed on the mounted glass, but it is not easy to press the glass surface with appropriate force and the abrasive powder cannot remain between the polishing pad and glass
Solution Approach 1:
The fixing part is designed to rotate relative to the processing part along with the process target object through shear force, creating dynamic relative motion between the polishing pad and glass surface. This dynamic interaction ensures uniform pressure distribution and effective abrasive powder retention, resolving the contradiction between ease of operation and polishing evenness.
Solution Approach 2:
The jig part with jig opening serves as an intermediary structure that securely holds the process target object while allowing the polishing pad to contact the glass surface. This intermediary mechanism enables proper force application and abrasive powder retention, improving polishing evenness while maintaining operational ease.
2Productivity
If the glass is not separated from the liquid crystal panel for lapping, then economic efficiency is improved, but it becomes difficult to apply appropriate pressing force and maintain abrasive powder contact
Solution Approach 1:
The apparatus is segmented into distinct functional parts: the processing part for polishing, the fixing part for securing the glass, and the jig part for positioning. This segmentation allows each component to perform its specific function effectively, enabling proper force application and abrasive powder contact even when the glass remains attached to the liquid crystal panel, thus maintaining scratch removal effectiveness while improving economic efficiency.
Solution Approach 2:
The fixing part automatically rotates relative to the processing part through shear force generated during polishing, creating self-adjusting pressure and abrasive powder distribution. This self-service mechanism ensures effective scratch removal without requiring complex external control systems, maintaining manufacturing precision while improving productivity.
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
Ensures even polishing and efficient scratch removal without separating the glass from the liquid crystal panel, maintaining contact and applying necessary pressure and cooling as needed, thus addressing the inefficiencies of previous methods.
Implementation Method 1
a pad part including a pad placed on the upper side of the jig, which is provided to expand as air is injected and press the process target object inserted into the jig opening against the processing part
Implementation Method 2
a processing part which is provided for a process target object to be seated and polishes a lower surface of the process target object seated as it rotates
Implementation Method 3
the fixing part rotates relative to the processing part along with the process target object by the shear force applied to the process targe object from the processing part
Data Source
AI summary
A lapping apparatus includes a processing part and a fixing part. The processing part is provided for a target object to be seated and polishes a lower surface of the target object seated as it rotates. The fixing part is provided for pressing the seated target object against the processing part so that the lower surface of the target object is fixed in a state of being seated on the processing part. The fixing part rotates relative to the processing part along with the target object by shear force applied to the target object from the processing part so that the processing of the lower surface of the target object is made when the processing part rotates while the fixing part fixes the target object, and the location axes of the fixing part and the processing part do not match.