Polygonal Light Adjustment Panels With Integrated Electrode Shading
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Solution Overview
Problem
Existing light adjustment devices with liquid crystal cells suffer from light leakage due to orientation disorder of liquid crystal molecules, particularly in regions where the liquid crystal molecules cannot be controlled by the electrodes.
Innovation Solution
A light adjustment device comprising a panel unit with stacked light adjustment panels, each panel shaped as a polygon and including translucent substrates with a light adjustment region and shaded regions created by strip-shaped electrodes, which are disposed along all sides of the panel unit to shade non-shaded regions and reduce light leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If alignment film is provided only in the region where liquid crystal molecules can be controlled by electrodes, then the manufacturing process is simplified, but light leakage occurs in the surrounding region where liquid crystal molecules cannot be controlled
Solution Approach 1:
The patent extracts the shading function from the alignment film and implements it through a separate black matrix structure. The black matrix is provided in the non-light adjustment region to prevent light leakage, while the alignment film is only provided in the light adjustment region where liquid crystal molecules need to be controlled. This separation allows each component to perform its specific function without compromise.
Solution Approach 2:
The black matrix acts as an intermediary element between the light source and the liquid crystal layer. It specifically blocks light in the non-light adjustment region where liquid crystal molecules cannot be controlled, preventing light leakage without interfering with the liquid crystal control function in the light adjustment region.
2Object-generated harmful factors
If alignment film is provided in the entire substrate area, then light leakage is prevented, but the manufacturing complexity and cost increase
Solution Approach 1:
The patent applies local quality by providing the black matrix specifically in the non-light adjustment region where it is needed for light leakage prevention. The alignment film is provided only in the light adjustment region where liquid crystal control is required. This localized approach optimizes both light leakage prevention and manufacturing simplicity.
3Object-generated harmful factors
If separate shading structures are added to prevent light leakage, then light leakage is reduced, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent merges the shading function with the electrode structure by integrating the black matrix into the same substrate layer where electrodes are formed. This combination allows the shading function to be achieved without adding separate shading components, thereby reducing device complexity while still preventing light leakage effectively.
Solution Approach 2:
The black matrix structure serves multiple functions: it acts as a shading element to prevent light leakage in the non-light adjustment region, and it is integrated with the electrode structure. This multi-functionality reduces the need for separate components and simplifies the overall device 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
The solution effectively reduces light leakage by shading non-shaded regions with strip-shaped electrodes, while also providing a cost-effective manufacturing process by integrating the shading function into the electrode structure.
Implementation Method 1
a first wire and a second wire disposed around the light adjustment region, the first wire serves as a first shaded region covering an area between at least one side among a plurality of sides of the polygon and the light adjustment region, the second wire serves as a second shaded region covering an area between a non-shaded region at an edge part along another side among the sides and the light adjustment region
Data Source
AI summary
A light adjustment device includes a panel unit in which a plurality of light adjustment panels are stacked in a first direction, each light adjustment panel being shaped as a polygon and including a first substrate that is translucent and a second substrate that is translucent and overlapping the first substrate, and a light source disposed on one side relative to the panel unit in the first direction.