Flexible Printed Circuit Wiring for Minimal Bezel Width
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Solution Overview
Problem
Conventional electronic apparatuses face challenges in securing space in the bezel while minimizing the thickness of the main body and bezel width, which affects the overall design and functionality.
Innovation Solution
The use of a flexible printed circuit (FPC) with a first wiring section that connects terminal groups along one side of the display and extends to group wires at the rear surface, allowing for minimal thickness and bezel width by folding back the wiring section to the rear surface, thereby minimizing the space occupied in the bezel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If conventional wiring methods are used to connect terminal groups to the control board, then the wiring can be easily implemented, but the bezel width and main body thickness increase due to the space required for wire routing
Solution Approach 1:
The FPC wiring structure transitions from a planar routing approach to a three-dimensional configuration by extending wires to the rear surface of the display. This dimensional change allows wires to be grouped together at the rear surface, significantly reducing the space required in the bezel area and enabling thinner main body design while maintaining wiring functionality
Solution Approach 2:
The wiring structure is nested within the display assembly by grouping multiple wires together at the rear surface. This nesting approach consolidates what would otherwise be dispersed wire routes into a compact arrangement, minimizing the space occupation in the bezel and allowing for reduced bezel width and main body thickness
2Area of stationary object
If wires are grouped together at the rear surface of the display, then the bezel width and main body thickness are minimized, but the wiring structure becomes more complex
Solution Approach 1:
The FPC wiring structure utilizes the rear surface dimension of the display to group wires together, transitioning from a two-dimensional planar routing to a three-dimensional arrangement. This dimensional change enables compact wire grouping that minimizes bezel width while the flexible nature of FPC manages the structural complexity through bendable connections
3Volume of moving object
If the FPC wiring section is extended to group wires at the rear surface, then space efficiency is improved, but the FPC structure becomes more complex
Solution Approach 1:
The FPC wiring structure incorporates dynamic flexibility through its bendable nature, allowing the wiring to adapt to the three-dimensional routing requirements. The flexible printed circuit can be bent and extended to group wires at the rear surface while maintaining electrical connections, managing structural complexity through inherent material flexibility rather than rigid complex structures
Solution Approach 2:
The FPC extends into the third dimension by routing wires to the rear surface of the display, creating a vertical arrangement that consolidates wire space. This dimensional transition reduces horizontal space occupation in the bezel area while the flexible circuit management handles the increased structural complexity
Data Source
AI summary
An electronic apparatus that can secure a space in a bezel while controlling the thickness of a main body, in which a display is disposed, and the width of a bezel to a minimum is disclosed. The electronic apparatus includes a main body having a display and a bezel disposed around the display, a first board that controls an image displayed on the display, and an FPC that connects at least two terminal groups arranged along one side of the display and the first board. The first board is disposed at a position adjacent to the one side in the bezel, and the FPC has a first wiring section connected to at least two terminal groups and extends, grouping together wires at one place on the rear surface of the display, and a second wiring section that connects the wires grouped together by the first wiring section to the first board.