Display Coupling Apparatus Using PCB Traces and Micro-Coaxial Cables
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Solution Overview
Problem
Conventional methods for coupling a display to an information handling system are labor-intensive, costly, and prone to high failure rates due to the use of small gauge wires and high-cost connectors, leading to signal degradation and assembly challenges.
Innovation Solution
A display coupling apparatus featuring a first circuit board with a display connector end, a cable coupling pad, and traces extending from the connector end to the pad, utilizing micro-coaxial cables and commodity surface mount technology connectors to simplify and automate the assembly process, reducing labor and material costs while minimizing signal loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If small gauge wires are used to couple the display to the information handling system, then the cable assembly can be made compact, but the voltage drop increases and signal quality degrades
Solution Approach 1:
The invention divides the cable assembly into two separate circuit boards (first and second circuit boards) that are each coupled to the information handling system and display independently. This segmentation eliminates the need for long small-gauge wires while maintaining compact form factor, as each board is positioned close to its corresponding device.
Solution Approach 2:
The invention transitions from a linear cable connection to a distributed architecture where circuit boards are integrated into the structural framework. By utilizing the spatial dimension and positioning circuit boards at strategic locations near the information handling system and display, the solution eliminates long wire runs while maintaining compact overall system size.
2Ease of manufacture
If conventional cable assembly methods are used, then the display can be coupled to the information handling system, but the assembly process becomes labor-intensive and difficult to repeat
Solution Approach 1:
The circuit boards are pre-assembled with connectors and traces before integration into the final system. This preliminary preparation of components allows for standardized, repeatable assembly processes and enables automation, eliminating the need for manual wire sorting and connector attachment during final assembly.
Solution Approach 2:
The invention changes the fundamental parameters of the connection system by replacing small-gauge wires with printed circuit board traces and commodity connectors. This parameter change transforms the assembly process from a manual, skill-intensive operation to a standardized, automated process that is easier to manufacture and more productive.
3Object-affected harmful factors
If twin-axial coaxial wires with multiple wire pairs are used, then electromagnetic interference shielding can be provided, but the sorting and soldering process becomes highly labor intensive
Solution Approach 1:
The invention replaces the mechanical wire sorting and hand-soldering process with automated PCB manufacturing techniques. The electromagnetic interference shielding function is maintained through PCB trace routing and grounding designs rather than through manual wire arrangement, eliminating the labor-intensive sorting and soldering steps.
Solution Approach 2:
The invention uses printed circuit board traces as copies of traditional wire connections, replicating the electrical connectivity and shielding functions of twin-axial coaxial cables through etched copper patterns on PCBs. This copying approach maintains EMI protection while eliminating the complexity of manual wire assembly.
4Reliability
If low-volume, high-cost connectors are used to terminate the wires, then the connection can be made, but the parts cost and assembly difficulty increase
Solution Approach 1:
The invention employs commodity connectors that serve multiple functions and are widely available, replacing specialized low-volume connectors. These universal connectors maintain connection reliability while reducing parts cost and simplifying assembly, as they can be sourced from standard suppliers and assembled using conventional techniques.
Solution Approach 2:
The invention replaces expensive, specialized connectors with inexpensive commodity connectors that can be easily replaced if needed. This approach reduces parts cost and simplifies manufacturing while maintaining adequate connection reliability for the application, accepting that these connectors are standard, off-the-shelf components rather than custom-engineered parts.
Data Source
AI summary
A display coupling apparatus includes a first circuit board having a display connector end. A first cable coupling pad is located on the first circuit board. At least one trace on the first circuit board extends from the display connector end to the first cable coupling pad. The display coupling apparatus is used to electrically couple a display to an information handling system.