Liquid Crystal Lens Electrode Layout for Non-Uniformity Compensation
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Solution Overview
Problem
Existing liquid crystal lenses face challenges in achieving independent control and driving of each electrode to compensate for non-uniform effects caused by process deviations during manufacturing, which affect imaging quality.
Innovation Solution
A liquid crystal lens design with a first electrode module and a second electrode module, where the first electrodes of the same order in each electrode region are connected to the same data line, and scanning lines are arranged in an annular pattern to reduce impedance and signal delay, enabling independent control and driving of each electrode through a phased surface adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If electrodes of the same order in each partition are connected via adapter lines and driven together, then the number of signal channels is reduced and driving complexity is lowered, but non-uniform effects in individual regions cannot be compensated and imaging quality deteriorates
Solution Approach 1:
The liquid crystal lens is divided into multiple partitions, with each partition containing multiple electrode regions. Each electrode region can be independently controlled through dedicated scanning lines and data lines, allowing regional compensation for non-uniform effects while maintaining manageable system complexity through modular structure.
Solution Approach 2:
Each electrode region within the partitions is equipped with independent scanning lines and data lines, enabling localized voltage control and adjustment. This allows compensation for process deviations in specific regions without affecting other areas, ensuring uniform imaging quality across the entire lens aperture.
2Manufacturing precision
If each electrode is independently controlled and driven, then non-uniform effects caused by process deviations are compensated and imaging quality is ensured, but the number of signal channels increases and driving complexity rises
Solution Approach 1:
The lens is segmented into partitions with multiple electrode regions, where each region has independent control lines. This segmentation enables precise local adjustment for imaging quality while distributing the control complexity across modular units rather than requiring centralized control of all electrodes simultaneously.
Solution Approach 2:
Scanning lines and data lines are pre-configured in a mesh pattern across each electrode region, establishing independent control pathways before operation. This preliminary arrangement of control structures enables straightforward independent electrode control without requiring complex real-time routing or switching mechanisms.
3Speed
If scanning lines are arranged in an annular pattern and connected in a regular mesh manner, then impedance and signal delay are reduced, but the structure becomes more complex
Solution Approach 1:
Scanning lines are arranged in an annular (circular) pattern rather than straight radial lines. This curved configuration naturally follows the circular symmetry of the liquid crystal lens, reducing signal path length and impedance while maintaining uniform electrical characteristics across the aperture. The annular structure also distributes electrical load more evenly compared to radial arrangements.
Solution Approach 2:
Multiple scanning lines within each electrode region are connected in a regular mesh manner, merging parallel signal paths to reduce overall impedance. This mesh configuration combines the advantages of multiple independent pathways with collective impedance reduction, improving signal transmission speed while maintaining structural regularity for ease of manufacturing.
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 reduces driving power consumption and ensures accurate imaging by compensating for non-uniform effects caused by process deviations, achieving high-quality imaging through independent control of each electrode.
Implementation Method 1
A liquid crystal lens (liquid crystal lens) is a technology created by utilizing the unique physical and optical properties of liquid crystal materials. Unlike traditional glass lenses, liquid crystal lenses can focus or diverge incident light based on the electric field applied to them; in particular, the focal length of liquid crystal lenses can be adjusted by changing the supply voltage.
Data Source
AI summary
The present invention provides a liquid crystal lens, pertaining to the technical field of liquid crystal lenses. The liquid crystal lens includes a first electrode module, liquid crystal molecules, and a second electrode module. The first electrode module includes a first electrode group, a data line group, a scanning line group, and a scanning adapter line group. The first electrode group includes M electrode regions sequentially nested. Each of the electrode regions includes N first electrodes of annular structure sequentially nested. The M electrode regions sequentially activate TFTs of the electrode region through scanning lines to enable data lines to output a target voltage to charge storage capacitors corresponding to the first electrodes. After charging is completed, the TFTs of the electrode region are deactivated through the scanning lines, continuing until the charging of the first electrodes of the last electrode region, thereby completing the writing of one frame signal.