Liquid Crystal Lens High-Resistivity Electrode Patterns
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Solution Overview
Problem
Liquid crystal lenses face challenges in achieving desirable optical characteristics due to excessive differences in electrode pitch and cell gap, leading to limited power line distribution near electrodes.
Innovation Solution
Incorporating conductive patterns with high resistance values and different resistivities between electrodes, allowing for multiple voltage drops and ideal distribution of electric force lines within the liquid crystal layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If the electrode pitch is increased to meet focal length requirements, then the focal length requirement is satisfied, but the power line distribution becomes limited near the electrodes
Solution Approach 1:
The patent introduces a conductive pattern as an intermediary element between the first and second electrodes. This conductive pattern has a resistivity higher than the electrodes but lower than the liquid crystal material, serving as a mediator to distribute electric force lines more uniformly across the liquid crystal layer, thereby resolving the power line distribution limitation caused by large electrode pitch
Solution Approach 2:
The patent changes the resistivity parameter by introducing a conductive pattern with specifically controlled resistivity (higher than electrodes but lower than liquid crystal). This parameter change enables the conductive pattern to serve as an effective intermediary for electric force line distribution, solving the contradiction between electrode pitch and optical characteristics
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 configuration enhances the optical characteristics of liquid crystal lenses by ensuring even power line distribution between electrodes, enabling convex or concave lens characteristics as needed.
Implementation Method 1
a liquid crystal layer located between the first substrate and the second substrate
Implementation Method 2
The first conductive pattern and the second conductive pattern are electrically connected between the first electrode and the second electrode
Data Source
AI summary
A liquid crystal lens including a first substrate, a first electrode disposed on the first substrate, a second electrode disposed on the first substrate, a first conductive pattern disposed on the first substrate, a second conductive pattern disposed on the first substrate, a second substrate disposed opposite to the first substrate, a common electrode disposed on the second substrate, and a liquid crystal layer located between the first substrate and the second substrate is provided. The first conductive pattern and the second conductive pattern are electrically connected between the first electrode and the second electrode. A resistivity of the first conductive pattern and a resistivity of the second conductive pattern are greater than a resistivity of the first electrode and a resistivity of the second electrode. At least a portion of the at least one second conductive pattern is disposed into the at least one first conductive pattern.