Metal Core PCB Backlight Assembly Direct Connection
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Solution Overview
Problem
The assembly of backlight assemblies using metal core printed circuit boards (PCBs) is complex and time-consuming due to the need for connectors and cables, which also limits the planarization of the light source and can degrade due to heat, reducing performance and preventing effective use of light emission.
Innovation Solution
Direct connection of first and second metal core PCBs using convex and concave portions, with conductive portions formed on the surfaces, allowing for electrical connection without cables or connectors, enabling a surface-type light source with improved assembly efficiency and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If connectors and cables are used to connect metal core PCBs, then electrical connection is achieved, but assembly complexity increases and productivity decreases
Solution Approach 1:
The patent merges the electrical connection function directly into the metal core PCB structure by forming conductive portions on the PCB surface. This eliminates the need for separate connectors and cables, thereby reducing assembly complexity while maintaining reliable electrical connection between PCBs
Solution Approach 2:
The patent extracts the connector and cable components from the system by integrating the electrical connection functionality directly onto the metal core PCB through conductive portions. This removal of external connection components simplifies the overall assembly structure
2Reliability
If connectors and cables are used to connect metal core PCBs, then electrical connection is achieved, but assembly time increases
Solution Approach 1:
By merging the electrical connection function into the PCB structure itself through conductive portions, the patent eliminates the time-consuming process of connecting separate connectors and cables, thereby reducing assembly time while ensuring reliable electrical connection
3Reliability
If connectors and cables are used to connect metal core PCBs, then electrical connection is achieved, but heat dissipation performance deteriorates
Solution Approach 1:
The patent removes connectors and cables from the system, eliminating the heat-related deterioration issues associated with these components. The direct PCB-to-PCB connection through conductive portions provides better thermal management
4Reliability
If connectors and cables are used to connect metal core PCBs, then electrical connection is achieved, but light source planarization is hindered
Solution Approach 1:
By merging the electrical connection function directly into the PCB structure, the patent eliminates the physical obstructions caused by connectors and cables, enabling effective planarization of the light source surface
Data Source
AI summary
A backlight assembly and a display device having the backlight assembly are provided where the backlight assembly includes a plurality of light sources for emitting light and a plurality of metal core printed circuit boards on which the light sources are mounted. The metal core printed circuit boards are directly connected to each other in predetermined regions to emit light in a surface direction. A method of assembling the backlight assembly is further provided.