Jig for Liquid Crystal Display Plastic Plate Fabrication
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The challenge lies in fabricating lightweight and thin liquid crystal displays using plastic plates, as existing methods face issues with surface flatness, rigidity, heat distortion, and compatibility with glass plate fabrication processes, leading to low yield and increased costs.
Innovation Solution
A jig comprising a support substrate with an adhesive layer and an adhesive agent layer is used to securely attach a plastic plate, ensuring it remains fixed during heating and cooling processes, allowing for the fabrication of thin liquid crystal displays using conventional equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a plastic plate is used instead of a glass plate to reduce weight and thickness, then the liquid crystal display becomes lighter and thinner, but the plastic plate has low rigidity, low heat distortion temperature, and low surface hardness making it easily broken or deformed during heating process
Solution Approach 1:
The invention uses a composite structure consisting of a plastic plate combined with a support substrate (glass or rigid plastic) and adhesive layers. This composite material approach allows the display to benefit from the lightweight property of plastic while the support substrate provides the necessary rigidity and strength during fabrication and operation.
Solution Approach 2:
Adhesive layers serve as intermediaries between the plastic plate and the support substrate. These adhesive layers securely bond the two materials, allowing the support substrate to provide structural reinforcement while the plastic plate maintains its lightweight advantage. The adhesive mediator enables the composite structure to function as a unified system with improved mechanical properties.
2Reliability
If the plastic plate is fixed to a frame to improve delivery stability, then the plastic plate becomes more stable during handling, but the plastic plate warps within the frame making it difficult to achieve surface flatness
Solution Approach 1:
The invention extracts the plastic plate from the frame structure after bonding, allowing the plate to be delivered and processed without the constraints of the frame. The frame is only used temporarily during the bonding process to provide stability, then removed to eliminate the warping effect while maintaining the benefits of stable handling during fabrication.
Solution Approach 2:
The plastic plate is preliminarily fixed to the support substrate using adhesive layers before actual fabrication processes. This preliminary bonding action stabilizes the plate for handling and processing without requiring a permanent frame structure, enabling subsequent surface flatness adjustments and fabrication operations to proceed without frame-induced warping.
3Ease of operation
If the plastic plate is placed on a release film for delivery, then the plastic plate can be handled during fabrication, but efficient delivery cannot be accomplished due to low rigidity of the release film and bubbles or partial separation may occur at the interface during heat treatment
Solution Approach 1:
The invention uses adhesive layers as intermediaries between the plastic plate and the support substrate, replacing the problematic release film interface. These adhesive layers are specifically designed to maintain strong bonding under heat treatment conditions, preventing bubbles and separation while providing the necessary ease of handling during fabrication processes.
Solution Approach 2:
The invention changes the parameters of the bonding interface by using adhesive layers with appropriate glass transition temperatures and bonding characteristics. These adhesive layers maintain flexibility at fabrication temperatures for easy handling but provide strong, stable bonding that resists separation and bubble formation during heat treatment processes.
4Length of moving object
If glass plate thickness is reduced to make the display thinner, then the display becomes thinner, but the strength of the glass plate is degraded and equipment in fabrication lines must be changed
Solution Approach 1:
The invention creates a composite structure where a thin plastic plate is bonded to a support substrate. This allows the active display layer to be very thin while the support substrate provides the necessary mechanical strength, eliminating the need to change fabrication equipment while achieving the desired thinness.
Solution Approach 2:
Adhesive layers serve as intermediaries that securely bond the thin plastic plate to the support substrate. This intermediary bonding mechanism allows the thin plate to maintain its reduced thickness while the support substrate and adhesive system together provide the structural strength needed for standard fabrication equipment to handle the assembly without modification.
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
This solution ensures high adherence and surface flatness of the plastic plate, increasing the yield of plastic liquid crystal displays and enabling their production with existing glass display fabrication equipment without additional investment.
Implementation Method 1
a jig for delivering a liquid crystal display plate, including a support substrate, an adhesive layer disposed at the support substrate, and an adhesive agent layer disposed at the adhesive layer
Data Source
AI summary
A jig for delivering a plastic plate used to make a lighter and thinner liquid crystal display plate and a method of fabricating a liquid crystal display are provided. The jig includes a support substrate, an adhesive layer disposed at the support substrate, and an adhesive agent layer disposed at the adhesive layer and surrounded by the adhesive layer.