Display Control Unit Shielding Strips for Heat Dissipation
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Solution Overview
Problem
Existing display device control units face challenges in effectively dissipating heat while maintaining electromagnetic field shielding, leading to reduced lifespan due to incomplete heat dissipation when using metal casings for shielding.
Innovation Solution
A control unit design featuring continuous and uninterrupted shielding strips arranged around circuit structures to facilitate vertical heat dissipation without interfering with electromagnetic shielding, utilizing metal or conductive adhesive tape for enhanced heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a metal casing is used to shield the electric field completely, then the electromagnetic shielding effect is improved, but the heat dissipation performance deteriorates
Solution Approach 1:
The continuous metal casing is segmented into multiple shielding strips arranged in parallel. These strips are spaced apart from each other, creating gaps that allow heat to dissipate while still maintaining electromagnetic shielding effectiveness. The segmentation transforms the solid casing into a lattice-like structure that simultaneously achieves both shielding and thermal management functions.
Solution Approach 2:
Different regions of the shielding structure are designed with different properties. The shielding strips themselves maintain high electromagnetic shielding capability, while the spaces between strips provide thermal ventilation channels. This local differentiation allows the structure to optimize both electromagnetic protection and heat dissipation in different spatial zones.
2Reliability
If circuit structures are shielded to prevent electromagnetic interference, then the electromagnetic compatibility is improved, but the heat dissipation capability deteriorates
Solution Approach 1:
The shielding structure is divided into multiple discrete strips rather than a continuous enclosure. This segmentation creates natural ventilation pathways between the strips, allowing heat generated by circuit structures to escape while the strips themselves continue to provide electromagnetic shielding for the enclosed circuits.
Solution Approach 2:
The shielding approach transitions from a three-dimensional enclosed casing to a two-dimensional array of parallel strips. This dimensional reduction opens up the interior space and creates channels for heat flow in the vertical and lateral directions, improving heat dissipation while maintaining the shielding function in the horizontal plane.
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
Improves heat dissipation without compromising electromagnetic shielding, thereby extending the lifespan of the control unit and display device.
Implementation Method 1
In order to prevent interference of electric field and electromagnetic wave being generated between different circuit structures, the circuit structures are generally shielded
Implementation Method 2
the heat generated by the circuit structures cannot be dissipated well when the electric field is completely shielded
Implementation Method 3
the heat generated by the circuit structures cannot be dissipated well when the electric field is completely shielded
Data Source
Figure 1~2
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AI summary
The present disclosure provides a control unit of display device and a display device. The control unit of display device includes: a back plate (30); a plurality of circuit structures (40), the plurality of circuit structures (40) being arranged on the back plate (30); a plurality of electric field shielding structures (10, 20), each of the electric field shielding structures (10, 20) being arranged between the circuit structures (40) and configured to shield an electric field between the circuit structures (40), wherein each of the electric field shielding structures(10, 20) comprises a plurality of shielding strips (11, 21), the plurality of shielding strips (11, 21) are spaced apart from each other and projections of the shielding strips (11, 21) on a corresponding side of the circuit structure (40) are continuous and uninterrupted. The present disclosure can improve the heat dissipating effect without affecting the shielding effect of the electric field.