Display Module FPCB Overlap Layout for Battery Clearance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The increasing size of flexible printed circuit boards in display modules interferes with mechanisms for fixing batteries, leading to potential battery vulnerability and increased device thickness in miniaturized electronic devices.
Innovation Solution
A frame structure with a partition wall and an opening in the frame compensates for the overlapping area of flexible printed circuit boards, ensuring they are spaced apart from the battery fixation mechanism, preventing interference and maintaining device thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single large FPCB is used to connect all display components, then the connection structure is simple, but the FPCB becomes excessively long and susceptible to external forces causing display defects
Solution Approach 1:
The patent divides the originally single large FPCB into multiple smaller FPCBs (first FPCB, second FPCB, third FPCB, etc.), each connecting to a corresponding sub-display component. This segmentation reduces the length of each FPCB, making them less susceptible to external forces while maintaining the overall connection functionality through the flexible printed circuit board structure that integrates these multiple FPCBs.
2Reliability
If multiple separate FPCBs are used to connect display components, then display reliability improves, but the connection structure becomes more complex
Solution Approach 1:
The patent merges multiple separate FPCBs into a single integrated flexible printed circuit board structure. The first, second, third and subsequent FPCBs are connected together to form one unified flexible printed circuit board that connects to the display component array, thereby reducing structural complexity while maintaining the reliability benefits of multiple connection points.
3Area of stationary object
If FPCBs are made longer to connect all display components, then connection coverage is improved, but the FPCBs become more susceptible to external forces causing wrinkles and display defects
Solution Approach 1:
Instead of using one long FPCB that spans the entire display area, the patent segments the connection into multiple shorter FPCBs, each serving a specific region. The first FPCB connects to first through nth display components, the second FPCB connects to (n+1)th through (2n)th display components, and so on. This segmentation maintains comprehensive connection coverage while each individual FPCB remains short enough to resist external forces and prevent wrinkles.
4Ease of manufacture
If the FPCB structure is simplified to reduce manufacturing complexity, then production efficiency improves, but the ability to prevent display defects from external forces deteriorates
Solution Approach 1:
The patent employs segmentation to divide the FPCB into multiple manageable sections that can be manufactured and assembled in a standardized manner. Each segmented FPCB follows the same design pattern, simplifying the manufacturing process through repetition while the distributed segmentation architecture inherently prevents display defects by avoiding long vulnerable FPCB sections.
Data Source
Figure 1
Figure 2
Figure 3A
AI summary
An electronic device according to various embodiments disclosed in the present document comprises: a frame; a first partition wall formed so as to protrude from the frame in a first direction and dividing the frame into a first area and a second area; a second partition wall portion formed so as to protrude 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 of the frame; a battery disposed in the second area of the frame; a second printed circuit board disposed in the third area of the frame; and a display module including at least two flexible printed circuit boards and disposed on the frame in a second direction opposite to the first direction. The flexible printed circuit board of the display module includes an overlapping area in which at least some areas are overlapped, the overlapping area may be disposed in the second area spaced apart from the first partition wall portion, and in the frame, an opening may be formed in a portion facing the overlapping area of the flexible printed circuit board of the display module. Various other embodiments may also be possible.