Intersecting-Electrode Liquid Crystal Cells for Compact Light Diffusion
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Solution Overview
Problem
Existing liquid crystal light control devices have not effectively addressed the challenge of miniaturization of light distribution control, particularly in lighting devices where miniaturization and efficient light diffusion are required.
Innovation Solution
A liquid crystal light control device comprising three liquid crystal cells with specific electrode configurations and voltage applications to each liquid crystal cell, allowing for efficient light diffusion and efficient light diffusion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple liquid crystal cells are stacked to control light distribution, then light control capability is improved, but device size increases
Solution Approach 1:
The patent transitions from controlling light distribution in a single plane to three-dimensional light control by stacking multiple liquid crystal cells in the depth direction. Each cell layer adds a dimension of control, enabling complex light distribution patterns that cannot be achieved with single-plane configurations. This dimensional transition resolves the contradiction by achieving superior light control capability while maintaining a compact form factor through vertical stacking rather than horizontal expansion.
Solution Approach 2:
The patent implements a nested structure where multiple liquid crystal cells are stacked concentrically or in layered fashion around a central light source. Each cell layer is positioned at a different depth, creating a nested configuration that maximizes light control functionality within a minimal volume. This nesting approach allows multiple control functions to be integrated in a compact space, resolving the contradiction between enhanced light control and minimized device size.
2Volume of moving object
If liquid crystal cells are miniaturized for compact lighting devices, then device size is reduced, but light diffusion efficiency decreases
Solution Approach 1:
The patent applies different characteristics to different regions of the liquid crystal cell system. Each liquid crystal cell layer can be independently controlled with specific voltage patterns, allowing localized optimization of light diffusion in different spatial zones. This local quality approach enables the miniaturized device to maintain high light diffusion efficiency by tailoring the optical properties of each layer to its specific function, rather than requiring uniform characteristics throughout the entire compact structure.
Solution Approach 2:
The patent divides the light control function into multiple segmented liquid crystal cell layers, each contributing to the overall light diffusion process. By segmenting the control function across multiple thin layers rather than requiring a single thick cell, the system achieves effective light diffusion in a miniaturized configuration. Each segment (layer) performs a portion of the light diffusion task, and their combined effect maintains high overall efficiency despite the reduced device size.
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 efficient light diffusion and miniaturization by controlling light distribution through overlapping liquid crystal cells with intersecting electrodes, enabling various light distribution patterns.
Implementation Method 1
A liquid crystal light control device that controls the light distribution of light emitted from a light source by utilizing the electro-optical effect of liquid crystals
Data Source
AI summary
A liquid crystal light control device includes a first to third liquid crystal cells, the first to third liquid crystal cells being arranged in overlapping order in the light emission direction of light emitted from a light source, each of the first to third liquid crystal cells includes a first electrode formed by first and second strip electrodes arranged on the first substrate, and a second electrode formed by third and fourth strip electrodes arranged on the second substrate, the first and second stripe electrodes extend in a direction intersecting with the direction of the third stripe electrode and fourth stripe electrode, the first and the second stripe electrodes of the first, second, and third liquid crystal cells extend in the same direction, and the third and the fourth stripe electrodes of the first, second, and third liquid crystal cells extend in the same direction.