Flexible Substrate Insulation for Reliable Display Devices
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Summary
Problems
In display devices with overlapping flexible print circuit boards, there is a risk of disconnection or damage to driver ICs due to contact between the boards, which affects the reliability and performance of the device.
Innovation solutions
Incorporating a compressible insulating material between the flexible substrates of the display panels to prevent contact and potential damage between the driver ICs mounted on different flexible print circuit boards, even when they overlap.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If two flexible substrates are made apart with at least part of one overlapping the other to connect to display panels, then the display device can accommodate multiple display panels with driver ICs, but the driver ICs may contact each other or the flexible substrates may disconnect, causing damage or failure
Why choose this principle:
An insulating material is introduced as an intermediary element between the first and second flexible substrates. This insulating material prevents direct contact between the driver ICs mounted on each substrate, eliminating the risk of electrical damage while allowing the substrates to overlap and maintain their connection functions to the display panels.
Principle concept:
If two flexible substrates are made apart with at least part of one overlapping the other to connect to display panels, then the display device can accommodate multiple display panels with driver ICs, but the driver ICs may contact each other or the flexible substrates may disconnect, causing damage or failure
Why choose this principle:
The space between the overlapping flexible substrates is segmented by introducing a separate insulating material layer. This segmentation physically divides the potential contact zone, ensuring that the driver ICs on different substrates remain isolated from each other while the substrates themselves maintain their structural integrity and connectivity.
Application Domain
Data Source
AI summary:
Incorporating a compressible insulating material between the flexible substrates of the display panels to prevent contact and potential damage between the driver ICs mounted on different flexible print circuit boards, even when they overlap.
Abstract
A display device includes: a first display panel; a first flexible substrate on which a first driver IC outputting a driving signal to the first display panel is mounted; a second flexible substrate being apart from the first flexible substrate, at least a part of the second flexible substrate overlapping the first flexible substrate; and an insulating material disposed between the first flexible substrate and the second flexible substrate. The first flexible substrate is connected to the first display panel so that the first driver IC is on a side of the second flexible substrate. The insulating material is disposed between the first driver IC and the second flexible substrate.