Flexible Printed Circuit Unit for Compact Display Integration
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Solution Overview
Problem
Current display devices face challenges in achieving a high degree of integration and miniaturization of components, particularly in flexible members, which hinders the development of thin and small-sized flexible display devices with complex designs, as traditional printed circuit boards are not easily adaptable for flexible substrates.
Innovation Solution
A printed circuit unit with a flexible member that incorporates a drive chip, multiple wiring layers, and an integrated connector, allowing for increased component integration and connectivity, eliminating the need for a separate printed circuit board with a connector, and enabling a more compact and lightweight display device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If traditional printed circuit boards are used, then structural stability is maintained, but device thickness and weight increase
Solution Approach 1:
The patent combines the printed circuit board and connector into a single integrated structure. The connector is directly formed on the printed circuit board through conformal coating processes, eliminating the need for separate connector components and reducing overall device weight while maintaining structural stability.
Solution Approach 2:
The patent employs thin film technology for the connector structure, using conformal coating layers that provide both electrical connectivity and mechanical support. This thin-film approach significantly reduces device thickness and weight compared to traditional rigid connector assemblies.
2Volume of moving object
If components are highly integrated in flexible members, then device size is reduced, but manufacturing difficulty increases
Solution Approach 1:
The patent performs preliminary integration by forming the connector structure on the printed circuit board before final assembly. The conformal coating process pre-establishes the electrical and mechanical connections, simplifying subsequent manufacturing steps and reducing overall manufacturing difficulty despite high component integration.
Solution Approach 2:
The printed circuit board serves multiple functions: it provides structural support, electrical connectivity, and connector housing. This multi-functional design reduces the number of separate components needed, shrinking device size while using standardized manufacturing processes that maintain ease of production.
3Length of stationary object
If separate printed circuit board and connector are used, then ease of assembly is maintained, but device thickness increases
Solution Approach 1:
The connector and printed circuit board are merged into a single integrated component. The conformal coating process directly forms the connector on the board, eliminating the need for separate assembly steps and reducing device thickness without significantly complicating the manufacturing process.
Data Source
AI summary
Disclosed is a printed circuit unit that includes a flexible member which has an upper surface and a lower surface and includes a first end and a second end. An output pad is disposed at the first end and is implemented to be connected to a bent display panel. A connecting unit is disposed at the second end and is implemented to be connected to a system board, and a drive chip is located between the output pad and the connecting unit.