Display Glass Panel Fixture for Deformation Control
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Solution Overview
Problem
Large-size liquid crystal display modules suffer from bending deformation of the glass panel due to fixed edges, leading to misalignment between the array cell and color filter cell, resulting in pixel light leakage and reduced contrast.
Innovation Solution
A fixture that fixes the glass panel at two ends with a light guide plate, using an upper and lower fixing end with gaps to allow for automatic fine-tuning and suspension, preventing deformation by gravity recovery, and aligning the color resist and metal routing layers in parallel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the glass panel is fixed at four edges, then the panel structure is stable, but the glass panel suffers bending deformation and alignment offset in large-size panels
Solution Approach 1:
The patent divides the fixing structure into segments: instead of fixing all four edges, only the lower edge is fixed while the upper edge remains free. This segmentation allows the glass panel to maintain stability at the fixed end while avoiding bending deformation at the free end, thereby preserving alignment precision between the array cell and color filter cell.
Solution Approach 2:
The patent extracts the fixing constraint from the upper edge of the glass panel, removing the restriction that causes bending deformation. By taking out the fixing constraint from three edges and retaining it only at the lower edge, the patent eliminates the source of deformation while maintaining necessary structural stability.
2Stability of the object's composition
If the glass panel is fixed at four edges, then the panel is securely positioned, but there is no space for stretchable adjustment causing alignment offset
Solution Approach 1:
The patent introduces dynamic adaptability by leaving the upper edge of the glass panel unfixed, allowing it to stretch and adjust automatically to accommodate alignment variations. This dynamic design enables the panel to adapt to manufacturing tolerances while the lower fixed edge maintains positioning stability.
3Strength
If the glass panel is fixed at multiple points, then the panel is firmly secured, but the alignment between color resist and metal routing offsets causing pixel light leakage
Solution Approach 1:
The patent segments the fixing points, concentrating the fixing strength at the lower edge while leaving the upper edge free. This segmentation prevents the multiple fixed points from causing bending deformation that would lead to alignment offset between the color resist and metal routing, thereby eliminating pixel light leakage.
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
Prevents deformation and misalignment, reducing pixel light leakage and maintaining contrast by allowing the glass panel to recover automatically and maintaining proper alignment between the color resist and metal routing layers.
Implementation Method 1
the glass panel may recover quickly by its own gravity
Data Source
AI summary
A fixture for preventing deformation of a glass panel of a display module, for receiving and fixing a light guide plate and a glass panel. It comprises an array cell and a color filter cell. The array cell is provided with a metal routing layer. The color filter cell is provided with a color resist layer. The fixture consists and a lower fixing end, with upper ends, the array cell and the color filter cell received in the upper fixing end, while lower ends thereof received in the lower fixing end, so the color resist layer in the color filter cell and the metal routing layer in the array cell are aligned in parallel. By a gap between the glass panel and the inner side face and bottom surface, the glass panel fine tunes properly for quick recovery by virtue of its gravity when deformation occurs.