Liquid Crystal Electrode Layout for Light Direction Control
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Solution Overview
Problem
Existing light emission direction adjustment mechanisms in devices such as vehicle headlights rely on complex mechanical components, necessitating a simpler solution for easy adjustment.
Innovation Solution
A liquid crystal element with specific electrode configurations on opposing substrates and a liquid crystal layer, allowing for easy control of light emission direction through applied voltage differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If mechanical components are used to adjust light emission direction, then the emission direction can be controlled, but the device complexity increases
Solution Approach 1:
The patent replaces mechanical adjustment mechanisms with an electric field-based liquid crystal system. Multiple electrode sets generate electric fields that control liquid crystal orientation, thereby adjusting light emission direction without any moving mechanical parts. This substitution eliminates mechanical complexity while maintaining directional control capability.
Solution Approach 2:
The patent controls light emission direction by changing electrical parameters (voltage applied to different electrode sets) rather than mechanical parameters. By varying the voltage magnitude and polarity across electrode sets, the liquid crystal molecules reorient themselves, dynamically adjusting the light emission angle without physical movement of components.
2Measurement precision
If multiple electrode sets are used to control light direction, then the light emission direction control precision is improved, but the device complexity increases
Solution Approach 1:
The patent divides the electrode system into multiple independent electrode sets (first, second, third, and fourth electrode sets) with different orientations and positions. Each electrode set independently controls a specific aspect of liquid crystal orientation, allowing precise directional control of light emission through coordinated activation of segmented electrode groups.
Solution Approach 2:
The patent extends the control from a single plane to multiple dimensions by arranging electrode sets in different orientations (first direction and second direction) and at different positions (first substrate and second substrate). This multi-dimensional electrode configuration enables precise control of light emission direction in three-dimensional space.
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
Enables efficient and flexible control of light emission direction without mechanical complexity, enhancing the functionality and efficiency of light projection systems.
Implementation Method 1
a liquid crystal layer positioned between the first substrate and the second substrate
Implementation Method 2
The first electrodes, the second electrodes, the third electrodes, and the fourth electrodes extend in a first direction
Data Source
AI summary
A liquid crystal element includes a first substrate, a liquid crystal layer, a second substrate, electrode sets each including a first electrode, a second electrode, a third electrode, and a fourth electrode, the first and second electrodes being disposed on the first substrate, the third and fourth electrodes being disposed on the second substrate. The first, second, third, and fourth electrodes extend in a first direction. In one of the electrode sets, the second electrode is disposed closer to the second substrate than the first electrode is, and overlaps a first end portion of the first electrode on a first end side in the second direction; the third electrode overlaps a second end portion of the first electrode on a second end side in the second direction; and the fourth electrode overlaps the second electrode. The electrode sets are arranged in the second direction. The first electrodes have light-blocking properties.