Liquid Crystal Dimming Eyeglasses with Etched Insulation Rings
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Solution Overview
Problem
Existing liquid crystal dimming eyeglasses are prone to short-circuiting due to contamination of the upper and lower conductive layers, leading to operational anomalies.
Innovation Solution
The first conductive layer of the liquid crystal film is designed with an etched portion that divides it into insulated inner and outer ring portions, preventing short-circuiting even when contaminated with conductive powder.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If liquid crystal films are cut from a mother board during production, then multiple liquid crystal films can be obtained, but conductive powder is generated that contaminates the cut edges and creates conductive paths between upper and lower conductive layers
Solution Approach 1:
The first conductive layer is segmented into an inner ring portion and an outer ring portion separated by an etched portion. This segmentation ensures that even if conductive powder contaminates the cut edges, it cannot create a continuous conductive path between the upper and lower conductive layers, thus preventing short-circuiting while maintaining production efficiency.
Solution Approach 2:
The etched portion acts as an intermediary insulating structure between the inner and outer ring portions of the first conductive layer. This intermediary element blocks the conductive path that would otherwise be created by conductive powder contamination at the cut edges, ensuring electrical insulation reliability.
2Reliability
If conductive powder contaminates the cut edges of the liquid crystal film, then short-circuiting occurs between conductive layers, but adding protective measures increases device complexity
Solution Approach 1:
The first conductive layer is divided into inner and outer ring portions separated by an etched portion. This segmentation is integrated into the existing conductive layer structure rather than adding separate protective components, thus preventing short-circuiting while minimizing increases in device complexity.
Solution Approach 2:
The etched portion is strategically located at the cut edges where contamination occurs. This localized approach provides insulation exactly where it is needed to prevent short-circuiting, rather than requiring comprehensive protective measures throughout the entire conductive layer, thereby reducing overall structural complexity.
3Reliability
If the first conductive layer is designed with an etched portion to prevent short-circuiting, then insulation reliability improves, but manufacturing precision requirements increase
Solution Approach 1:
The first conductive layer is segmented into inner and outer ring portions by an etched portion. This segmentation design, while requiring etching precision, creates a reliable insulating barrier that prevents conductive powder from creating continuous conductive paths, achieving high insulation reliability.
Solution Approach 2:
The etched portion serves as an intermediary insulating structure that blocks conductive paths. By positioning this intermediary element at the critical cut edge regions, the design achieves effective insulation with localized precision requirements rather than requiring high precision throughout the entire conductive layer structure.
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
Ensures the liquid crystal film functions normally by maintaining insulation between the conductive layers, enhancing the reliability and functionality of the eyeglasses.
Implementation Method 1
the liquid crystal layer is located between the inner ring portion and the second conductive layer
Data Source
AI summary
This application discloses a liquid crystal dimming eyeglasses, comprising a frame, lenses, a liquid crystal film, and a circuit board. The lens is positioned within the frame; the liquid crystal film is attached to the lens and includes a first conductive layer, a second conductive layer, and a liquid crystal layer. The first and second conductive layers are arranged opposite to each other; the first conductive layer is equipped with an inner ring portion, an outer ring portion, and an etched portion, with the outer ring portion partially surrounding the inner ring portion. The etched portion is located between the inner ring portion and the outer ring portion, ensuring insulation between these two parts. The liquid crystal layer is situated between the inner ring portion and the second conductive layer. The circuit board is electrically connected to both the inner ring portion and the second conductive layer.