OLED Flexible Member Connection Stability via Protruding Part
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Solution Overview
Problem
In OLED display devices, the flexible member tends to disconnect from the insulating substrate when bent, leading to instability in the assembly, which is a challenge for reducing the size of the OLED while maintaining functionality.
Innovation Solution
The flexible member is connected to the insulating substrate using a first accommodating member with a protruding part that extends towards the flexible member's end, ensuring stable contact and preventing disconnection, and the flexible member is bent to allow the circuit substrate to overlap with the display element, with anisotropic conductive films used for connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the flexible member is folded to decrease the size of the OLED, then the device size is reduced, but the flexible member may become disconnected from the insulating substrate
Solution Approach 1:
The protruding part is pre-formed on the accommodating member before assembly, positioned to contact the flexible member's first end. This preliminary structural preparation ensures that when the flexible member is folded, the protruding part is already in place to prevent disconnection, resolving the contradiction between size reduction and connection stability.
Solution Approach 2:
The protruding part acts as an intermediary element between the accommodating member and the flexible member. It provides a mechanical interface that transfers and stabilizes the connection force, ensuring the flexible member remains securely connected to the insulating substrate even when folded to reduce device size.
2Area of stationary object
If the flexible member is bent toward the upper part of the display element to reduce size, then the device becomes more compact, but the flexible member may become disconnected from the insulating substrate
Solution Approach 1:
The protruding part is specifically positioned at the location where the flexible member's first end contacts the accommodating member. This localized structural feature provides targeted stabilization exactly where the bending action creates disconnection risk, allowing the flexible member to be bent for compactness while maintaining assembly stability through the locally enhanced connection.
Data Source
AI summary
A display device has an insulating substrate with a first surface and a second surface, a display element having an organic light-emitting layer arranged between two electrodes, a flexible member having a first end connected to the first surface and a second end facing the first end and the first surface, and a first accommodating member having a lower surface substantially parallel with the insulating substrate, a lateral surface extending from the lower surface, and a protruding part extending from the lower surface toward the first end. The first accommodating member includes a through hole, and the flexible member extends through the through hole so the second end is positioned outside the first accommodating member. The insulating substrate is arranged in the first accommodating member, and the protruding part may contact and press against the first end connected to the insulating substrate.