Flexible Display Panel Dummy Region for Curved Surface Attachment
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Solution Overview
Problem
Flexible display panels applied to curved surfaces, such as car windows, are prone to wrinkling and damage due to their interaction with the curved surfaces, affecting the integrity of the display components.
Innovation Solution
A flexible display panel design incorporating a flexible substrate with a display region, peripheral circuit region, and dummy region, where the dummy region surrounds the peripheral circuit region and forms a gap, allowing the circuit board to be connected through this gap, thereby reducing stress and damage during attachment to curved surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the flexible display panel is applied to curved surfaces, then the adaptability of the display panel is improved, but the display panel may be wrinkled and damaged
Solution Approach 1:
The display panel is divided into distinct functional regions: a display region containing light-emitting units, a peripheral circuit region containing driving circuits, and a dummy region surrounding the peripheral circuit region. This segmentation allows each region to be optimized independently, with the dummy region specifically designed to provide mechanical buffer and stress relief when the panel is applied to curved surfaces, thereby maintaining component integrity while enabling adaptability.
Solution Approach 2:
The dummy region is designed to surround the peripheral circuit region and form a gap, creating a buffer zone before the panel is subjected to curvature stress. This beforehand cushioning structure prevents direct transmission of mechanical stress to the fragile display components and peripheral circuits, reducing the risk of wrinkles and damage when applied to curved surfaces.
2Reliability
If the dummy region surrounds the peripheral circuit region and forms a gap, then the stress on the display panel is reduced, but the device complexity increases
Solution Approach 1:
The dummy region serves multiple functions simultaneously: it acts as a mechanical buffer to reduce stress on display components, provides structural support for the peripheral circuit region, and creates a gap that facilitates electrical connection between the circuit board and peripheral circuit. This multi-functionality reduces the need for additional separate components, thereby limiting the increase in device complexity while achieving reliable protection.
3Reliability
If the circuit board is electrically connected through the gap, then the electrical connection is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The gap is pre-formed during the manufacturing process as an integral part of the dummy region structure, rather than being created through subsequent alignment operations. This preliminary action establishes the connection pathway in advance, allowing the circuit board to be connected through the predetermined gap with reduced alignment requirements, thereby improving electrical connection reliability without excessively increasing manufacturing precision demands.
Data Source
AI summary
The present disclosure provides a display panel and a window. The display panel includes a flexible substrate, a plurality of light-emitting units, a peripheral circuit, and a circuit board. The flexible substrate includes a display region, a peripheral circuit region, and a dummy region. The peripheral circuit region is adjacent to the display region. The dummy region surrounds the peripheral circuit region and forms a gap. The light-emitting units are disposed in the display region. The peripheral circuit is disposed in the peripheral circuit region and used to drive the light-emitting units. The circuit board is electrically connected to the peripheral circuit through the gap.