LED Module Assembly Structure for Display EMI Attenuation
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Solution Overview
Problem
Display apparatuses, particularly OLED panels, face issues with high price due to low mass production yield, reliability concerns due to large size, and durability in external environments, as well as electromagnetic interference (EMI) from internal electronic components, which can cause malfunctions and affect human health.
Innovation Solution
A display apparatus with an improved structure that includes a cabinet, detachable LED module assemblies, a support frame, and a coupling member with conductive regions for electromagnetic wave attenuation, using plating processing regions on LED modules and a conductive coupling member to shield electromagnetic waves, and a control board to drive the LED modules, effectively reducing EMI.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If electromagnetic shielding structures are added to reduce EMI, then electromagnetic interference is reduced, but device complexity increases
Solution Approach 1:
The coupling member is designed to perform dual functions: mechanically coupling the LED module to the support frame while simultaneously providing electromagnetic shielding through its conductive region. This eliminates the need for separate shielding structures, reducing overall device complexity while maintaining EMI protection.
Solution Approach 2:
The patent merges the mechanical coupling function and electromagnetic shielding function into a single integrated component (the coupling member). By combining these two functions, the design avoids adding extra shielding structures, thus maintaining structural simplicity while achieving EMI reduction.
2Object-affected harmful factors
If conductive regions are added to coupling members for shielding, then electromagnetic wave attenuation is improved, but manufacturing complexity increases
Solution Approach 1:
The coupling member's material properties are modified by adding conductive regions with specific electrical conductivity parameters. This allows the same component to provide both mechanical support and electromagnetic shielding by changing only the electrical parameter (conductivity) of specific regions, rather than requiring a completely different shielding material or structure.
Solution Approach 2:
Instead of making the entire coupling member conductive, only specific regions are designed with conductive properties where electromagnetic shielding is most needed. This localized approach to conductivity reduces material costs and manufacturing complexity compared to using fully conductive materials throughout the entire component.
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 electromagnetic interference within the display apparatus and prevents the radiation of EMI to the outside, enhancing the reliability and safety of the display while maintaining high luminance and resolution.
Implementation Method 1
a coupling member configured to couple the plurality of LED modules to the support frame and to include a conductive region... the plating processing region of the plurality of LED modules may contact the conductive region of the coupling member... an electromagnetic wave attenuator formed by contacting the plating processing region of the plurality of LED modules and the conductive region of the coupling member to attenuate electromagnetic waves
Data Source
AI summary
Disclosed is a display apparatus having an improved structure to attenuate electromagnetic interference. The display apparatus may include a cabinet and an LED module assembly detachably disposed in the cabinet, wherein the LED module assembly may include a plurality of LED modules, a support frame on which the plurality of LED modules are disposed, and a coupling member configured to couple the plurality of LED modules to the support frame and to include a conductive region.