Encapsulated Optical Film Electrode Layout to Prevent Short Circuits
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Optical devices with encapsulated structures face issues of electrode layers contacting each other due to pressure, leading to short circuits, which hampers their functionality and application expansion.
Innovation Solution
The optical device comprises a configuration with patterned electrode layers, where the second region is electrically connected to the first region only, preventing short circuits even under pressure, and includes a light modulation layer between the base films, allowing for transparent and black mode switching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the optical film is encapsulated through an encapsulant to expand applications, then the durability and application scope are improved, but the electrode layers may contact each other due to pressure causing short circuits
Solution Approach 1:
The electrode layers are divided into a first electrode layer and a second electrode layer that are spatially separated and do not face each other. This segmentation prevents direct contact between electrodes even when encapsulation pressure is applied, eliminating the short circuit risk while maintaining encapsulation benefits for durability enhancement.
Solution Approach 2:
A light modulation layer is introduced as an intermediary between the first and second electrode layers. This intermediary layer physically separates the electrodes and enables the optical functionality, preventing electrode contact while allowing the encapsulation structure to provide protective pressure without causing short circuits.
2Reliability
If the electrode layers are spaced apart to prevent short circuits, then the reliability is improved, but the device structure becomes more complex
Solution Approach 1:
The light modulation layer serves dual functions: it acts as an intermediary to prevent electrode contact for reliability, and simultaneously provides the optical modulation functionality. This merging of functions achieves short circuit prevention without adding separate structural elements, thereby avoiding increased device complexity.
Solution Approach 2:
The first and second electrode layers are designed to perform multiple roles: they provide electrical connectivity for device operation and simultaneously serve as spatially separated structures that prevent short circuits. This multi-functionality achieves reliability improvement without requiring additional specialized components that would increase 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
This configuration effectively prevents short circuits and enables efficient switching between modes, enhancing the durability and application scope of the optical device.
Implementation Method 1
a light modulation layer (130) existing between the first and second base films (110, 150)... a mixture of a host material, which is mainly a liquid crystal compound, and a dichroic dye guest is applied
Implementation Method 2
a dichroic dye guest is applied... capable of varying transmittance using liquid crystal compounds
Data Source
Figure 1~3
Figure 4~6
Figure 7~10
AI summary
The present application relates to an optical device. The present application provides an optical device capable of preventing defects such as short circuits even when an external power source has been connected in an encapsulated structure.