Polymer Dispersed Liquid Crystal Film with Mesh Electrode for Curved Vehicle Surfaces
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional polymer dispersed liquid crystal films for vehicles on curved surfaces exhibit varying image recognition degrees due to the orientation of liquid crystal molecules, which changes with the user's position, leading to inconsistent light transmission and viewing angles.
Innovation Solution
A polymer dispersed liquid crystal film with a mesh-type second electrode inserted into a resin layer, where the upper surface of the second electrode is exposed, and liquid crystal molecules are arranged in multiple directions when voltage is applied, allowing for improved light transmission and maintaining image recognition across different user positions and angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional polymer dispersed liquid crystal film is disposed on a curved member in a vehicle, then the film can be installed on diverse vehicle surfaces, but the image recognition degree varies according to user positions due to inconsistent liquid crystal molecule orientation
Solution Approach 1:
The second electrode is divided into multiple independent conductive patterns (first, second, third, and fourth conductive patterns) arranged in specific orientations. This segmentation allows different regions of the liquid crystal layer to be controlled independently, ensuring consistent image recognition from various viewing angles by orienting conductive patterns in multiple directions rather than relying on a single uniform electrode structure
Solution Approach 2:
Different regions of the film have different electrode configurations with conductive patterns oriented in specific directions (horizontal, vertical, diagonal). This local variation in electrode structure ensures that each region optimizes light transmission for specific viewing angles, collectively providing consistent image recognition across all user positions on curved surfaces
2Device complexity
If liquid crystal molecules are arranged in a single orientation, then the electrode structure is simple, but the viewing angle and light transmission consistency vary with user position
Solution Approach 1:
The electrode structure employs asymmetric conductive patterns with different orientations (horizontal, vertical, diagonal) rather than symmetric uniform patterns. This asymmetric design allows the film to optimize light transmission for multiple viewing directions simultaneously, achieving consistent illumination intensity across different user positions without requiring overly complex multi-layer electrode structures
Solution Approach 2:
The conductive patterns are arranged in multiple dimensional orientations (0°, 45°, 90°, 135°) within the plane of the electrode. This dimensional diversification of pattern orientations enables the film to maintain consistent light transmission properties across various viewing angles while keeping the electrode structure within a single layer, avoiding excessive complexity
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 film maintains consistent image recognition and improved viewing angles by aligning liquid crystal molecules in multiple directions, ensuring stable light transmission even on curved surfaces and at various user positions.
Implementation Method 1
when voltage is applied between the first electrode and the second electrode, the liquid crystal molecules may be arranged in directions from the first electrode toward the second electrode and transmit light
Implementation Method 2
transmit light, provided from a region below the polymer dispersed liquid crystal film for vehicles, to a region above the polymer dispersed liquid crystal film for vehicles
Data Source
AI summary
A polymer dispersed liquid crystal film for vehicles includes an electrode unit, a first electrode provided on the electrode unit, a polymer layer provided between the electrode unit and the first electrode, and a plurality of liquid crystal molecules dispersed in the polymer layer. The electrode unit includes a resin layer and a mesh-type second electrode inserted into the resin layer. The upper surface of the second electrode is exposed to the outside of the resin layer.