Light Control Sheet Wiring Layout for Larger Active Area
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Solution Overview
Problem
The existing light control sheets face a limitation in the size of the light control region, which restricts their application to larger areas.
Innovation Solution
The light control unit reduces the width of the mount section on the first transparent electrode relative to the extending section, allowing for a larger light control region by optimizing the circuit board design with foldable extending sections and projecting sections for precise mounting and reduced width.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the mount section width is reduced to increase the light control region, then the light control region area increases, but the mounting stability may deteriorate
Solution Approach 1:
The circuit board is segmented into a mount section and an extending section with different width characteristics. The mount section has a first width while the extending section has a second width greater than the first width, allowing the light control region to be maximized while the extending section provides sufficient mounting stability and wiring space.
Solution Approach 2:
The circuit board extends in multiple directions from the mount section. The extending section projects in a first direction parallel to the edge of the light control sheet, and also extends in a second direction perpendicular to the first direction, creating a L-shaped or T-shaped configuration that provides both mounting stability and adequate wiring space without increasing the mount section width.
2Area of stationary object
If the circuit board extends beyond the light control sheet edge, then the wiring space increases, but the aesthetic appearance and integration deteriorate
Solution Approach 1:
The extending section is designed to extend in a first direction parallel to the edge of the light control sheet, providing adequate wiring space. The extending section also has a width in a second direction perpendicular to the first direction, creating a compact L-shaped or T-shaped configuration that minimizes protrusion while maintaining functional requirements.
3Reliability
If the mount section width is increased to improve mounting stability, then the mounting reliability improves, but the light control region area decreases
Solution Approach 1:
The circuit board is divided into functional sections with different width characteristics. The mount section has a minimized first width to maximize the light control region, while the extending section has a greater second width to provide sufficient mounting stability and wiring space, separating the conflicting requirements into different spatial zones.
Data Source
Figure 1~3
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Figure 7~8
AI summary
A light control unit includes a light control sheet and a wiring member. The light control sheet includes a first transparent electrode, a second transparent electrode, and a light control layer interposed between the first and second transparent electrodes. The first transparent electrode has a first wiring region including part of an edge of the first transparent electrode and exposed from the light control layer. The second transparent electrode has a second wiring region including part of an edge of the second transparent electrode and exposed from the light control layer. The wiring member includes a mount section and an extending section. The mount section is mounted to the first wiring region and extends in a first direction along the edge of the first transparent electrode. The extending section extends in a second direction away from the mount section toward outside of the first transparent electrode, the second direction intersecting with the first direction. The mount section has a first width along a first perpendicular direction perpendicular to the first direction, and the extending section has a second width along a second perpendicular direction perpendicular to the second direction, such that the first width is less than the second width.