Liquid Crystal Lens Multi-View Display via Micro-Electrode Segmentation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing liquid crystal lens electrically driven systems face challenges in forming a moderate parabolic surface refractive index, are sensitive to voltage variations, and can only display two views per lens cell, making it difficult to achieve a stereoscopic display with multiple views.
Innovation Solution
The system employs micro division electrodes on both substrates with varying voltage conditions applied to different regions, allowing for the creation of multiple lens regions with distinct pitches and voltage gradients, enabling the display of multiple views by controlling the liquid crystal arrangement and refractive index.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a liquid crystal lens electrically driven system uses a single electrode structure with voltage application, then the liquid crystal layer can be driven to form a lens effect, but it can only display two views per lens cell and cannot achieve moderate parabolic surface refractive index distribution
Solution Approach 1:
The patent divides the electrode structure into multiple segments: first electrodes and second electrodes are separately provided on the lower and upper substrates respectively, with each electrode divided into multiple regions that can be independently controlled. This segmentation enables the liquid crystal layer to be divided into multiple lens regions, allowing display of multiple views (e.g., 4 views) per lens cell while maintaining controllable refractive index distribution for moderate parabolic surface formation.
Solution Approach 2:
The patent applies different voltages to different regions of the first and second electrodes independently. By controlling the voltage distribution locally in each electrode region, the system can create distinct lens regions with specific refractive index characteristics, enabling both moderate parabolic surface formation and multi-view display capabilities simultaneously.
2Reliability
If voltage is applied to form a liquid crystal lens, then the refractive index can be controlled, but the system is sensitive to voltage variations and cannot maintain stable multi-view display
Solution Approach 1:
The patent applies the same voltage to both the first electrode and the second electrode in corresponding regions. This equipotential approach ensures that the voltage distribution is symmetric and stable, reducing sensitivity to voltage variations while maintaining the ability to form multiple lens regions with controlled refractive indices for reliable multi-view display.
3Adaptability or versatility
If micro division electrodes are applied to both substrates with varying voltage conditions, then multiple lens regions with distinct pitches can be created, but the device complexity increases
Solution Approach 1:
The patent designs the first and second electrodes to have the same structure and be divided into the same number of regions, allowing them to perform equivalent functions. This universal design simplifies the overall device complexity while maintaining the ability to create multiple lens regions with distinct pitches and configurations, as both electrodes can be controlled independently but with identical structural characteristics.
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 approach allows for the production of a liquid crystal lens that can display multiple views, improving the control of the refractive index and enabling a stereoscopic display with a variety of 3D images, while maintaining a consistent liquid crystal layer thickness.
Implementation Method 1
liquid crystal molecules are driven by an electric field formed by application of a voltage to the two electrodes
Implementation Method 2
the optical anisotropy is variation of a path or a polarization state of light from the liquid crystal layer with a direction of incident of a light or a state of polarization owing to a long and thin structure of the liquid crystal molecule or the molecular arrangement direction
Implementation Method 3
the lens controls paths of incident lights to vary with positions of the paths by using a difference of refractive indices between a substance of the lens and the air
Implementation Method 4
the lights incident on the liquid crystal layer sense phases varied with positions of the incident, enabling the liquid crystal layer to control the paths of the incident lights, like an actual lens
Data Source
AI summary
The present invention relates to a liquid crystal lens electrically driven in which micro division electrodes are applied both to upper and lower substrates, and a voltage condition is varied with a number of views of a stereo 3D image display for enabling display of a plurality of views and a stereoscopic display device thereof.