Flexible Display Module Single-Substrate Connection Terminal
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Solution Overview
Problem
Existing display technologies require complex and time-consuming fabrication processes due to the need for additional flexible substrates to connect display panels to external PCBs, making it difficult to replace the display panel once bonded.
Innovation Solution
A flexible display module with a display region, connective lines, and a connection terminal on a single flexible substrate, where the connection terminal is arranged at an extension portion of the non-display region and electrically connected to an external circuit board, allowing for simplified assembly and potential removable or thermal bonding connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional flexible substrates are used to connect display panel to external PCB, then electrical connection is achieved, but fabrication process becomes complicated and time-consuming
Solution Approach 1:
The patent merges the display panel and connection terminal onto a single flexible substrate, eliminating the need for separate flexible substrates and reducing the number of bonding steps. The connection terminal is directly formed on the flexible substrate at the extension portion of the non-display region, integrating multiple functions into one component.
Solution Approach 2:
The flexible substrate serves multiple functions simultaneously: it acts as the base for the display panel, provides the connection terminal, and enables electrical connection to the external PCB. This multi-functional design reduces the need for additional components and simplifies the overall structure.
2Reliability
If additional flexible substrates are used to connect display panel to external PCB, then electrical connection is achieved, but assembly time increases
Solution Approach 1:
By combining the display panel and connection terminal on one flexible substrate, the patent reduces the number of assembly steps. The connection terminal is pre-formed on the flexible substrate, eliminating the need for separate bonding operations and reducing assembly time.
Solution Approach 2:
The connection terminal is pre-formed on the flexible substrate during the display panel manufacturing process, rather than being added separately during assembly. This preliminary action reduces the complexity and time of the final assembly process.
3Reliability
If display panel is bonded to external PCB through additional flexible substrate, then electrical connection is established, but display panel replacement becomes difficult
Solution Approach 1:
The patent segments the connection function into a separate connection terminal that can be independently formed on the flexible substrate. This segmentation allows the display panel to be replaced by simply disconnecting and reconnecting the connection terminal, without replacing the entire flexible substrate assembly.
Solution Approach 2:
The flexible substrate provides dynamic flexibility that allows the connection terminal to be easily connected and disconnected. The flexible nature of the substrate enables simple mechanical connection and disconnection, facilitating easy replacement of the display panel.
4Reliability
If connection terminal is placed on extension portion of non-display region, then electrical connection to external PCB is achieved, but space utilization is reduced
Solution Approach 1:
The patent applies local quality by placing the connection terminal specifically in the non-display region where it is not needed for display functions. This allows the display region to maintain its full area while the connection terminal occupies only the necessary space in the non-display region.
Solution Approach 2:
The connection terminal is positioned in the non-display region, utilizing the vertical and horizontal space that is not occupied by the display pixels. This dimensional arrangement allows both the display region and connection terminal to coexist without significant interference.
Data Source
AI summary
A display module and an assembly method thereof are provided. The display module includes a display region, at least one connection terminal, and a plurality of connective lines. The display region, the connection terminal, and the connective lines are disposed on a same flexible substrate. A plurality of pixels is arranged within the display region. The connection terminal is arranged at an extension portion of a non-display region of the flexible substrate. The connective lines respectively connect the pixels in the display region to the connection terminal at the extension portion. The connection terminal is connected to an external circuit for receiving signals and transmitting the same to the display region.