Stacked Liquid Crystal Cells With Angled Electrodes for Light Patterns
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Solution Overview
Problem
Existing technologies for controlling light distribution using liquid crystal lenses are limited in their ability to efficiently manipulate light patterns without compromising optical clarity and efficiency.
Innovation Solution
An optical device comprising a first and a second liquid crystal cell, each with electrodes extending at non-perpendicular angles, allowing for overlapping configurations that intersect and alternate directions, enabling precise control of light distribution patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If liquid crystal cells with perpendicular electrode patterns are used, then the device structure is simple and easy to manufacture, but the light manipulation capability is limited and cannot form complex patterns
Solution Approach 1:
The patent applies asymmetry by configuring electrode patterns in liquid crystal cells at non-perpendicular angles (e.g., 45 degrees relative to each other) rather than traditional perpendicular arrangements. This asymmetric electrode configuration enables the liquid crystal molecules to align in specific orientations that can manipulate light to form complex patterns such as squares, crosses, and lines, thereby enhancing light manipulation capability while accepting increased structural complexity
Solution Approach 2:
The patent utilizes multiple liquid crystal cells stacked in different orientations (e.g., one cell with horizontal electrode pattern, another with vertical pattern, and intermediate angle patterns). By combining the optical effects of multiple cells arranged in different dimensional orientations, the system achieves enhanced light manipulation capability that cannot be obtained from a single cell configuration
2Adaptability or versatility
If multiple liquid crystal cells are stacked to improve light control, then light distribution control is enhanced, but the device complexity and alignment difficulty increase
Solution Approach 1:
The patent divides the light manipulation function into multiple independent liquid crystal cells, each responsible for specific pattern formation in different orientations. For example, one cell may be dedicated to forming horizontal lines while another forms vertical lines. This segmentation allows each cell to be optimized for its specific function and simplifies the overall control strategy, as each cell can be independently addressed and controlled
Solution Approach 2:
The patent merges the optical effects of multiple liquid crystal cells with different electrode configurations to achieve comprehensive light distribution control. By stacking cells with complementary patterns (e.g., horizontal, vertical, and diagonal patterns), the system combines their individual light manipulation capabilities to produce complex integrated patterns that neither cell could achieve alone
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
The device achieves enhanced light manipulation capabilities, forming patterns such as squares, crosses, or lines with improved optical clarity and efficiency by utilizing non-perpendicular electrode arrangements in liquid crystal cells.
Implementation Method 1
A technique for controlling light distribution of light emitted from a light source using a liquid crystal lens are known
Implementation Method 2
controls a light distribution angle by controlling alignment of liquid crystals
Data Source
AI summary
An optical device comprises a first liquid crystal cell, a second liquid crystal cell overlapped with the first liquid crystal cell. Each of the first liquid crystal cell and the second liquid crystal cell includes a first substrate arranged with a first electrode extending in a direction inclined at a predetermined angle with respect to a first direction, a second substrate arranged with a second electrode extending in a direction inclined at a predetermined angle with respect to a second direction, and a liquid crystal layer. An extension direction of the first electrode and an that of the second electrode intersect each other without being perpendicular. The extension directions of the first electrode and the second electrode in the first liquid crystal cell and that of the first electrode and the second electrode in the second liquid crystal cell are different from each other.