Flexible Printed Circuit Strip for 3D Lighting Adaptation
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Solution Overview
Problem
Existing lighting systems face challenges in achieving uniform illumination and precise positioning of light-emitting elements within three-dimensional light guides, particularly in automotive and display applications, where varied curvature requires flexible adjustment of light pitch and direction.
Innovation Solution
A flexible printed circuit strip with pitch adjusting portions, featuring protruding carrying portions and flexible arms that can be bent to adjust the pitch between adjacent lighting elements, allowing for precise positioning and alignment with light guides, enabling uniform and customizable three-dimensional illumination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the light guide takes various three-dimensional shapes to meet aesthetic and light shape requirements, then the illumination uniformity and positioning precision of light-emitting elements deteriorate
Solution Approach 1:
The flexible printed circuit strip is segmented into multiple carrying portions that can be independently positioned and adjusted. Each carrying portion can be separately aligned with the light guide, allowing precise positioning of light-emitting elements even when the light guide has complex three-dimensional shapes.
Solution Approach 2:
The flexible printed circuit strip incorporates flexible arms that can be dynamically adjusted during assembly. These flexible arms allow the carrying portions to be positioned at different locations along the light guide, enabling adaptation to various curvatures and shapes while maintaining positioning precision.
2Adaptability or versatility
If the pitch between adjacent light-emitting elements is fixed, then the adaptability to different light guide curvatures is improved, but the illumination uniformity deteriorates
Solution Approach 1:
The flexible arms enable dynamic adjustment of the pitch between adjacent carrying portions. This allows the pitch to be optimized for each specific application scenario, ensuring uniform illumination while adapting to different light guide curvatures and shapes.
Solution Approach 2:
The pitch between adjacent light-emitting elements can be changed by adjusting the flexible arms. This parameter adjustment capability allows optimization of illumination uniformity for different light guide geometries while maintaining curvature adaptability.
3Manufacturing precision
If the light-emitting elements are rigidly positioned, then the manufacturing precision is improved, but the adaptability to three-dimensional light guides deteriorates
Solution Approach 1:
The flexible printed circuit strip uses a flexible substrate that can conform to three-dimensional light guide shapes. This flexibility allows the carrying portions to be precisely positioned on complex surfaces while maintaining the ability to adapt to various geometries.
Solution Approach 2:
The flexible circuit strip is divided into multiple carrying portions connected by flexible arms, allowing each portion to be independently positioned with high precision while the overall structure remains adaptable to three-dimensional shapes.
Data Source
AI summary
A device comprising a flexible printed circuit strip is disclosed. The flexible printed circuit strip comprises a plurality of first sections connected to a plurality of second sections. The plurality of first sections are bendable in at least a first axis relative to the plurality of second sections. The plurality of first sections comprise a connector to house at least one light emitting element. The plurality of second sections comprises a protrusion with an opening between two adjacent second sections such that the protrusion is bendable in at least two axes. The plurality of second sections comprise a connector to connect an electrical power supply.