Display Module FPCB Overlap Layout Around Battery Fixation
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Solution Overview
Problem
The increasing size of flexible printed circuit boards in display modules interferes with the mechanism for fixing batteries, leading to potential damage and increased thickness in electronic devices.
Innovation Solution
A frame structure with partition walls and an opening in the frame design separates the overlapping area of flexible printed circuit boards from the battery fixation mechanism, preventing interference and maintaining device thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the area of flexible printed circuit boards is increased to implement high-speed display, then display response speed is improved, but the position of overlapping area changes causing interference with battery fixation mechanism
Solution Approach 1:
The frame is divided into multiple areas using partition walls. The first partition wall separates the FPCB overlapping area from the battery fixation mechanism area, allowing both to coexist without interference while maintaining their respective functions
Solution Approach 2:
A partition wall acts as an intermediary structure between the FPCB overlapping area and the battery fixation mechanism. This intermediary element prevents direct interference while allowing both components to maintain their required areas and functions
2Device complexity
If the mechanism for fixing the battery is deformed to avoid interference with FPCB overlapping area, then interference is avoided, but the battery becomes vulnerable to impact
Solution Approach 1:
The frame structure is segmented into distinct areas: one for the FPCB overlapping region and another for the battery fixation mechanism. This segmentation allows the battery mechanism to maintain its original, undeformed structure while avoiding interference through spatial separation
Solution Approach 2:
The problem is solved by transitioning from deforming the battery mechanism in one dimension to spatial separation through partition walls in another dimension. The partition walls create vertical or lateral separation, allowing both components to maintain their structural integrity
3Area of moving object
If the size of flexible printed circuit boards is increased, then display performance is improved, but the thickness of electronic device increases
Solution Approach 1:
Instead of allowing FPCB overlap to increase thickness in the vertical dimension, the partition walls redirect the overlapping areas to specific zones within the frame plane. This redistributes the volume occupation horizontally while controlling vertical thickness
Data Source
AI summary
An electronic device is provided. The electronic device includes a frame, a first partition wall protruding from the frame in a first direction and dividing the frame into a first area and a second area, a second partition wall portion protruding from the frame in the first direction and dividing the frame into a second area and a third area, a first printed circuit board disposed in the first area, a battery disposed in the second area, a second printed circuit board disposed in the third area, and a display circuit including at least two flexible printed circuit boards. The flexible printed circuit boards include an overlapping area in which at least some areas overlap, the overlapping area being disposed in the second area, and, in the frame, an opening is formed in a portion facing the overlapping area.