Flexible Display Panel Bent-Substrate Layout for Driver Circuit Protection
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Solution Overview
Problem
Display devices, particularly flexible electronic paper, face issues with damage to driver circuits and limited bending due to the presence of driver circuits, which complicates handling and increases the risk of circuit failure.
Innovation Solution
The display device incorporates a flexible element substrate with a bent portion that includes a driver circuit, where the circuit is positioned to enhance strength and reduce damage, and a supporting portion that fixes the substrate, allowing for increased flexibility and reduced risk of circuit failure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the driver circuit is provided on a flexible substrate, then the display device can be bent and handled flexibly, but the circuit may be damaged when bent
Solution Approach 1:
The driver circuit is provided on a flexible substrate that can be bent without damaging the circuit. The substrate's flexibility allows the display device to be bent and handled while maintaining circuit integrity through proper material selection and structural design.
2Device complexity
If the driver circuit is provided on the flexible substrate, then integration is improved, but the bending of the electronic paper is limited by the driver circuit
Solution Approach 1:
The driver circuit is provided on a flexible substrate that can be bent without damaging the circuit. The substrate's flexibility allows the display device to be bent and handled while maintaining circuit integrity through proper material selection and structural design.
Data Source
AI summary
To provide a display device including a flexible panel that can be handled without seriously damaging a driver circuit or a connecting portion between circuits. The display device includes a bent portion obtained by bending an element substrate. A circuit for driving the display device is provided in the bent portion and a wiring extends from the circuit, whereby the strength of a portion including the circuit for driving the display device is increased and failure of the circuit is reduced. Furthermore, the element substrate is bent in a connecting portion between an external terminal electrode and an external connecting wiring (FPC) so that the element substrate provided with the external terminal electrode fits the external connecting wiring, whereby the strength of the connecting portion is increased.