Quantum Dot Display Module Heat-Conductive Layer Layout
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Solution Overview
Problem
Display modules face temperature increase issues due to heat generation from light-emitting components, which can affect performance and longevity, and existing solutions do not adequately address this problem.
Innovation Solution
A display module design incorporating a heat conductive layer made of metal, graphite, or silicon carbide, strategically positioned to dissipate heat without overlapping color filters and including auxiliary layers for enhanced heat management, while maintaining light transmission and color filtering capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a heat conductive layer is added to dissipate heat, then temperature control is improved, but device structure becomes more complex
Solution Approach 1:
The heat conductive layer is integrated within the existing display module structure, nesting the heat dissipation function inside the display panel assembly. This allows heat to be conducted away from light-emitting components without adding external complexity to the overall device structure.
Solution Approach 2:
The heat conductive layer serves multiple functions: it conducts heat away from light-emitting components, maintains structural integrity of the display module, and potentially serves as a structural support layer. This multi-functionality reduces the need for additional dedicated heat dissipation components.
2Temperature
If heat conductive layer overlaps color filters, then heat dissipation is improved, but light transmission and color accuracy deteriorate
Solution Approach 1:
The heat conductive layer is positioned to overlap specifically with non-display areas and regions between color filters where light transmission is not critical. This localized positioning allows effective heat dissipation in areas where it will not interfere with light transmission or color accuracy.
Solution Approach 2:
The heat conductive layer is segmented or patterned to cover only specific regions (non-display areas and inter-filter regions) rather than uniformly covering the entire display area. This segmentation ensures heat dissipation effectiveness while preserving light transmission properties in display regions.
3Illumination intensity
If quantum dot light control layer is added to control wavelength, then color quality is improved, but heat generation increases
Solution Approach 1:
The heat conductive layer acts as an intermediary between the quantum dot light control layer and the display panel, providing a thermal pathway to conduct heat away from the heat-generating quantum dot layer to regions with better heat dissipation capability.
Solution Approach 2:
The heat generated by the quantum dot layer, which is a harmful effect, is converted into a manageable thermal flow by directing it through the heat conductive layer to non-display areas. This transforms the harmful heat generation into a controlled thermal management solution.
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 minimizes temperature increases within the display panel, improving performance and longevity by efficiently dissipating heat without compromising light transmission or color accuracy.
Implementation Method 1
a heat conductive layer overlapping the plurality of first light shielding layers in a plan view and including at least one of metal, graphite, and silicon carbide
Implementation Method 2
The wavelength of the light emitted from the light source may be varied by the quantum dot
Data Source
AI summary
A display module includes a display panel on which a display area and a non-display area surrounding the display area are defined and a functional layer disposed on the display panel. Here, the functional layer includes a color filter layer including a plurality of color filters and a plurality of first light shielding layers each disposed between the plurality of color filters, a light control layer including a plurality of light control parts overlapping the plurality of color filter layers, respectively, wherein at least one of the plurality of light control parts includes a quantum dot, and a heat conductive layer. The heat conductive layer includes at least one of metal, graphite, and silicon carbide.