Planar Light Source Thickness Reduction via Layer Merging
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Solution Overview
Problem
Existing planar light sources are limited in their ability to reduce thickness while maintaining effective light transmission and luminance uniformity.
Innovation Solution
A planar light source design incorporating a support member with an insulation base, a conductive layer, an adhesive layer, and a light reflecting sheet, combined with a light guide member and light source, which facilitates thickness reduction through optimized structural elements and materials for improved light guidance and luminance control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If traditional planar light source structure is used, then light transmission and luminance uniformity are maintained, but thickness cannot be reduced
Solution Approach 1:
The patent combines multiple functional layers (insulation base, conductive layer, adhesive layer, light reflecting sheet) into an integrated support member structure that serves both mechanical support and optical functions simultaneously, enabling thickness reduction while maintaining luminance uniformity
Solution Approach 2:
The support member uses composite material structure combining insulation base with conductive and adhesive layers, creating a multi-functional composite that achieves both structural integrity and optical performance in a thinner profile
2Length of moving object
If traditional planar light source structure is used, then structural stability is maintained, but thickness cannot be reduced
Solution Approach 1:
The support member merges insulation, conduction, and adhesion functions into a single integrated structure, reducing the number of separate components and overall thickness while maintaining structural stability through the combined layers
Solution Approach 2:
The adhesive layer acts as a thin film that bonds the light guide member to the support member, providing structural stability with minimal thickness contribution
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 design achieves a reduction in thickness while maintaining high light transmittance and reducing luminance non-uniformity, enhancing the overall efficiency and compactness of the planar light source.
Implementation Method 1
a light guide member disposed on the support member and having a light source positioning part
Implementation Method 2
a light reflecting sheet disposed on the adhesive layer
Data Source
AI summary
A planar light source includes: a support member; a light guide member disposed on the support member and having a light source positioning part; and a light source disposed on the support member while being in the light source positioning part of the light guide member. The support member includes: an insulation base having a first face positioned closer to the light source and a second face positioned opposite the first face, a first conductive layer disposed on the first face of the insulation base and electrically connected to the light source, an adhesive layer disposed on and in contact with the first face of the insulation base and the first conductive layer, and a light reflecting sheet disposed on the adhesive layer.