Liquid Crystal Lens Sub-Electrode Segmentation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The complexity and increased interference among electric fields in liquid crystal lenses with a middle electrode foliated into four sub-electrodes complicate the structure and require more driven circuits, making them less efficient.
Innovation Solution
A liquid crystal lens design featuring a first electrode layer, a first transparent substrate, a second transparent substrate, and a second electrode layer with separated first and second sub-electrode-layers, allowing for focus control by adjusting voltages applied to these sub-electrode-layers, reducing the number of driven circuits and minimizing electric field interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the middle Al electrode is foliated into four sub-electrodes to control focus movement, then the focus can be controlled to move in a same plane, but the structure becomes more complicated and more driven circuits are required
Solution Approach 1:
The patent divides the middle electrode into four separate sub-electrodes arranged in a 2x2 matrix configuration. Each sub-electrode can be independently controlled to generate different phase shifts in corresponding regions of the liquid crystal layer, enabling precise focus control in different directions without requiring a completely separate electrode for each function.
Solution Approach 2:
The four sub-electrodes serve multiple functions simultaneously: they control focus movement in lateral directions (left-right, up-down), enable asymmetrical lens deformation, and provide independent phase shift control. This multi-functional design eliminates the need for additional dedicated electrodes for each control function.
2Adaptability or versatility
If the middle Al electrode is foliated into four sub-electrodes to control focus movement, then the focus can be controlled to move in a same plane, but the interference among electric fields becomes more significant
Solution Approach 1:
By segmenting the electrode into four spatially separated sub-electrodes, the patent reduces electric field interference between adjacent electrodes of opposite polarity. The physical separation and strategic positioning minimize overlapping electric field regions, reducing unwanted interference while maintaining effective focus control capability.
3Adaptability or versatility
If four sub-electrodes are used to control focus movement, then different phase shifts can occur in different regions of the liquid crystal layer, but more driven circuits are required
Solution Approach 1:
The patent segments the electrode control into four distinct sub-electrodes, each connected to independent driven circuits. This segmentation enables precise independent control of each electrode region, allowing different voltage levels and waveforms to be applied to create specific phase shift patterns in corresponding liquid crystal regions.
Solution Approach 2:
The patent implements dynamic voltage control where the four sub-electrodes can receive different voltage levels, polarities, and waveform characteristics. This dynamic control capability allows the system to adaptively adjust phase shifts in real-time, enabling focus movement control and asymmetrical lens deformation through coordinated voltage application to different sub-electrodes.
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 design enables focus adjustment and refractive index uniformity in the liquid crystal layer, achieving a larger projection range with a smaller lens while simplifying the structure and reducing electric field interference.
Implementation Method 1
Liquid crystal materials have electrical anisotropy and optical anisotropy properties, and the optical properties have electrical controllability.
Implementation Method 2
Liquid crystal materials have electrical anisotropy and optical anisotropy properties, and the optical properties have electrical controllability.
Implementation Method 3
the refractive indexes in respective regions of the liquid crystal layer can become non-uniform, the retardations of the light when passing through the respective regions of the liquid crystal layer can correspondingly become non-uniform
Data Source
AI summary
A liquid crystal lens, a manufacturing method thereof, an operation method thereof and a photoelectric device are provided. The lens comprises: a first electrode layer; a first transparent substrate; a second transparent substrate, provided to a lower surface of the first electrode layer and opposite to the first transparent substrate; a second electrode layer, provided to an upper surface of the first transparent substrate and comprising a first sub-electrode-layer and a second sub-electrode-layer which are separated from each other; and a liquid crystal layer provided between the second transparent substrate and the second electrode layer.