Piezoelectric Filling Pattern for Liquid Crystal Panel Thickness Control
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Solution Overview
Problem
The existing liquid crystal display technology faces challenges in achieving uniform thickness in the peripheral area of liquid crystal panels due to the fixed size of silicon spheres or glass fibers used in seal glue, leading to defects like peripheral Mura.
Innovation Solution
Incorporating a filling pattern made of piezoelectric material within the sealing frame between the substrates, which can change size when an electric field is applied, allowing for adjustable thickness of the liquid crystal panel in the peripheral area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If silicon sphere or glass fiber is incorporated into the seal glue to maintain assembly thickness, then the supporting effect is improved, but the thickness uniformity deteriorates
Solution Approach 1:
The patent applies parameter changes by using piezoelectric material that can dynamically alter its physical state (expansion/contraction) in response to electric field changes. This allows the supporting particles to adjust their volume and maintain uniform thickness across different regions of the liquid crystal panel, resolving the contradiction between providing support and maintaining thickness uniformity.
Solution Approach 2:
The patent introduces dynamics by replacing static supporting particles (silicon sphere or glass fiber) with dynamic piezoelectric material particles that can actively change their state. These particles can expand or contract based on applied voltage, enabling real-time adjustment of the liquid crystal layer thickness to achieve uniformity across the panel.
2Strength
If fixed size silicon sphere or glass fiber is used in seal glue, then the supporting effect is improved, but the thickness adjustability deteriorates
Solution Approach 1:
The patent uses piezoelectric material whose physical parameters (volume, shape) can be changed by applying electric fields. This enables the supporting particles to adapt their size and provide adjustable thickness control, transforming the static supporting function into a dynamically adjustable system.
Solution Approach 2:
The patent replaces the purely mechanical supporting system (fixed-size particles relying on physical hardness) with an electromechanical system. The piezoelectric material particles respond to electrical signals to produce mechanical expansion or contraction, enabling electronic control over thickness adjustment.
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 enables the adjustment of the liquid crystal panel's thickness in the peripheral area, addressing the issue of non-uniformity and defects such as peripheral Mura by utilizing the piezoelectric material's deformation under an electric field.
Implementation Method 1
the filling pattern is made of a piezoelectric material, and a size of the filling pattern is capable to be changed after the first electrode and the second electrode are applied with a voltage to generate an electric field
Data Source
AI summary
The present disclosure provides a liquid crystal panel and a method for manufacturing a liquid crystal panel. The liquid crystal panel includes a first substrate, a second substrate arranged opposite to the first substrate, and a sealing frame disposed between the first substrate and the second substrate. The liquid crystal panel further includes a first electrode, a second electrode and a plurality of filling patterns filled in the sealing frame. The filling pattern is made of a piezoelectric material, and a size of the filling pattern is capable to be changed after the first electrode and the second electrode are applied with a voltage to generate an electric field, so as to adjust a height of the liquid crystal panel in a peripheral area thereof.