Light-Emitting Assembly Layout for Contrast and Heat Dissipation
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Solution Overview
Problem
Existing light-emitting devices face challenges in achieving high contrast and efficient heat dissipation during light irradiation.
Innovation Solution
A light-emitting device design incorporating a first light-emitting part with a light-transmissive member, a first light-shielding member containing a first additive, and a second light-shielding member with higher thermal conductivity, positioned between light-emitting elements to reduce light interference and enhance heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If light-shielding members are provided between light-emitting elements, then light interference is reduced and contrast is improved, but heat dissipation becomes insufficient
Solution Approach 1:
The patent applies local quality by providing light-shielding members with different thermal conductivities at different locations. The first light-shielding member between light-transmissive members has lower thermal conductivity for light shielding, while the second light-shielding member between element lateral surfaces has higher thermal conductivity for heat dissipation. This localized differentiation resolves the contradiction by optimizing each region's material properties for its specific function.
Solution Approach 2:
The patent employs composite materials strategy by using two distinct light-shielding members with different thermal conductivities in the same device structure. The first light-shielding member contains materials optimized for light absorption, while the second light-shielding member contains materials with high thermal conductivity for heat dissipation. This composite approach allows simultaneous achievement of high contrast and efficient heat dissipation.
2Temperature
If a single light-shielding member is used, then device complexity is reduced, but both light shielding and heat dissipation cannot be optimized simultaneously
Solution Approach 1:
The patent segments the light-shielding function into two distinct components: a first light-shielding member positioned between light-transmissive members for primary light blocking, and a second light-shielding member positioned between element lateral surfaces for heat dissipation. This segmentation allows each component to be optimized for its specific function while maintaining a relatively simple overall structure.
Solution Approach 2:
The light-shielding members serve multiple functions: the first member provides light shielding and some heat dissipation, while the second member provides both light shielding and enhanced heat dissipation. This multi-functionality reduces the need for additional separate heat dissipation components, thereby limiting the increase in device complexity.
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 high contrast in light irradiation while efficiently dissipating heat, improving the performance of the light-emitting device.
Implementation Method 1
a second light-shielding member disposed between the first element lateral surface and the second element lateral surface and holding the first light-emitting part and the second light-emitting part, the second light-shielding member containing a second additive having a thermal conductivity higher than a thermal conductivity of the first additive
Data Source
AI summary
The light-emitting device includes a first light-emitting part including a first light-emitting element and a first light-transmissive member disposed over the first light-emitting element, a second light-emitting part including a second light-emitting element and a second light-transmissive member disposed over the second light-emitting element, a first light-shielding member disposed between a first lateral surface of the first light-transmissive member and a second lateral surface of the second light-transmissive member and containing a first additive, and a second light-shielding member disposed between a first element lateral surface of the first light-emitting element and a second element lateral surface of the second light-emitting element, holding the first light-emitting part and the second light-emitting part, and containing a second additive having a higher thermal conductivity than the first additive.