Display device
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Solution Overview
Problem
Existing display devices lack the ability to deform into various shapes in both display and non-display areas, limiting their flexibility and adaptability.
Innovation Solution
A display device design featuring a substrate with defined opening areas and equal widths of circuit and wiring areas, along with a circuit layer and light-emitting element layer, allowing for deformation in multiple directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the display device uses a conventional rigid structure, then manufacturing precision and structural stability are improved, but the ability to deform into various shapes is worsened
Solution Approach 1:
The display device is divided into multiple independent regions: a display area with pixel circuits and light-emitting elements, a non-display area with driving circuits, and opening areas that serve as hinge regions. This segmentation allows different parts to have different functional requirements while enabling overall deformation capability through the flexible opening areas.
Solution Approach 2:
The patent employs flexible substrates and thin-film structures throughout the display device, including flexible circuit layers and light-emitting element layers. These flexible components replace rigid structures, enabling the entire device to be stretched, folded, or rolled while maintaining structural integrity and functionality.
2Adaptability or versatility
If the display device is designed with equal widths of driving circuit area and wiring area, then ease of deformation is improved, but device complexity increases
Solution Approach 1:
While the driving circuit area and wiring area have equal widths to facilitate symmetric deformation, the internal layouts within these areas are asymmetrically optimized. The driving circuits are arranged to minimize stress concentration, and wiring routes are designed to follow deformation paths, reducing overall device complexity despite the symmetric external dimensions.
Solution Approach 2:
The equal-width design of driving circuit and wiring areas creates a dynamic balance that adapts to deformation. When the device is stretched or folded, both areas deform uniformly, preventing stress concentration and maintaining electrical connections. This dynamic adaptability simplifies the overall structure compared to asymmetric designs that would require complex stress management.
3Adaptability or versatility
If opening areas are defined in both display and non-display areas, then the ability to stretch and contract is improved, but manufacturing precision requirements increase
Solution Approach 1:
The opening areas serve multiple functions: they act as hinge regions for deformation, provide stress relief zones, and maintain structural continuity during stretching and folding. By designing these opening areas with precise dimensions and positions, the patent achieves multi-functionality that reduces overall manufacturing complexity despite the precision requirements.
Solution Approach 2:
The patent optimizes the parameters of opening areas (width, length, position, and shape) to balance deformability and manufacturing precision. By carefully controlling these parameters, the opening areas can accommodate deformation while maintaining manufacturability within standard precision tolerances, avoiding excessive complexity in the manufacturing process.
Data Source
AI summary
A display device includes a substrate including a display area and a non-display area including a driving circuit area, and a wiring area, the wiring area including a first wiring area and a second wiring area respectively disposed on opposite sides of the driving circuit area in a first direction, and a circuit layer disposed on the substrate, the circuit layer including a driving circuit overlapping the driving circuit area and a wiring line overlapping the wiring area and electrically connected to the driving circuit. A first opening area is defined in the display area, and a second opening area is defined between the driving circuit area and the wiring area. A width of the driving circuit area and a width of the wiring area are equal to each other.