Hinge Connecting Module for Flexible Display PCBs
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current display devices face limitations in achieving high resolution due to the limited area available for driving circuit units, which restricts the number of data lines and driving circuit units required for high-resolution implementations like 8K resolution.
Innovation Solution
A display device design that includes a display panel, a driving printed circuit board, a control printed circuit board connected via a cable with a hinge connecting module, allowing for a reduced size of the driving printed circuit board to accommodate more boards and prevent contact failures during folding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of driving circuit units is increased to achieve high resolution, then image quality and resolution are improved, but the area required for mounting driving circuit units increases
Solution Approach 1:
The patent divides the driving circuit functionality into multiple separate driving circuit units that can be distributed across different printed circuit boards. Each driving circuit unit handles a portion of the data lines, allowing the system to achieve high resolution without requiring a single large mounting area. The display device can have multiple PCBs (e.g., first PCB, second PCB, third PCB) each carrying subsets of driving circuits.
Solution Approach 2:
The patent transitions from a two-dimensional layout where all driving circuits must be mounted on a single plane to a three-dimensional configuration using multiple stacked or folded printed circuit boards. This allows driving circuit units to be distributed across multiple layers and boards, effectively increasing the available mounting volume while maintaining a compact overall form factor.
2Measurement precision
If the size of the driving printed circuit board is reduced to accommodate more boards, then the number of driving printed circuit boards that can be attached increases, but the cable connection reliability may deteriorate
Solution Approach 1:
The patent introduces a hinge connecting module that allows the printed circuit boards to be flexibly connected and folded. This dynamic connection mechanism enables the cable assembly to accommodate movements and folding actions without compromising connection reliability. The hinge module can rotate or flex, allowing the system to maintain electrical connections even when boards are folded or positioned at different angles.
Solution Approach 2:
The hinge connecting module acts as an intermediary between the cable and the printed circuit boards. It provides a robust connection interface that protects the electrical contacts while allowing for flexible positioning. The hinge module includes protective structures and alignment features that ensure reliable electrical connection even when the overall assembly is folded or subjected to mechanical stress.
3Area of stationary object
If cable pins are arranged closely to reduce space, then the area occupied by cable connections is reduced, but contact failure risk increases during folding
Solution Approach 1:
The hinge connecting module incorporates dynamic elements that allow the cable pins to maintain proper alignment and contact pressure during folding operations. The flexible or rotatable components in the hinge mechanism compensate for relative movements between boards, ensuring that pins remain engaged with their corresponding sockets even when the assembly is folded to various degrees.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A display device includes: a display panel, a driving printed circuit board connected to the display panel, a control printed circuit board connected to the driving printed circuit board, at least one cable which connects the driving printed circuit board and the control printed circuit board, and a hinge connecting module disposed at both ends of at least one cable. Therefore, it is possible to implement an image having a high resolution by increasing the number of driving printed circuit boards attached to the display panel.