Curved Display Panel Bending via Flexible Fixing Substrate
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing methods for manufacturing curved display panels often result in damage to the liquid crystal display module due to stress concentration when force is directly applied to the glass substrates, leading to low product yield.
Innovation Solution
A curved display panel is manufactured by aligning a display module with a first glass plate and a flexible fixing substrate, using a combination of solid and liquid adhesives to adhere them, and then bending the fixing substrate to curve the display module, thereby avoiding direct force on the glass plate and reducing stress concentration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If force is directly applied to the glass substrates to bend the liquid crystal display module, then the display module can be curved, but the glass substrates may be broken and damaged due to stress concentration
Solution Approach 1:
A flexible substrate is introduced as an intermediary between the force application point and the glass substrates. The flexible substrate deforms under applied force and gradually transmits this deformation to the display module, preventing direct stress concentration on the fragile glass substrates while achieving the desired curved shape
Solution Approach 2:
The flexible substrate is pre-positioned and attached to the display module before curvature is applied. This preliminary arrangement ensures that when force is applied, the flexible substrate is already in place to distribute and manage the stress, preventing direct impact on the glass substrates
2Strength
If solid adhesive is used to adhere the glass plate to the fixing substrate, then high stickiness is achieved, but air bubbles are easily generated
Solution Approach 1:
The adhesive is applied in multiple layers with different properties - a first adhesive layer with higher viscosity to prevent air bubble formation, and a second adhesive layer with lower viscosity to ensure complete coverage and strong bonding. This parameter variation in viscosity across different adhesive layers resolves the contradiction between strong adhesion and air bubble prevention
3Object-generated harmful factors
If liquid adhesive is used to adhere the glass plate to the fixing substrate, then air bubbles are not easily generated, but stickiness is low
Solution Approach 1:
The adhesive is applied in multiple layers with different properties - a first adhesive layer with higher viscosity to prevent air bubble formation, and a second adhesive layer with lower viscosity to ensure complete coverage and strong bonding. This parameter variation in viscosity across different adhesive layers resolves the contradiction between strong adhesion and air bubble prevention
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 method protects the display module from damage and improves product yield by distributing the bending force through the fixing substrate, while the combination of adhesives enhances adhesion and reduces air bubble formation.
Implementation Method 1
The adhering material is connected between the first curved surface and the second curved surface... employing a adhering material to adhere the first glass plate to the first fixing substrate
Data Source
AI summary
A curved display panel includes a display module, a first fixing substrate and an adhering material. The display module has a first glass plate. The first glass plate has a first curved surface. The first fixing substrate has a second curved surface facing the first curved surface. The adhering material is connected between the first curved surface and the second curved surface.