Display Panel Crack Sensing for Camera Openings
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Solution Overview
Problem
Existing display panels face challenges in integrating additional components, such as sensors or cameras, due to their size and the need for efficient input/output functionality through an opening area without compromising display quality.
Innovation Solution
A display panel design incorporating a substrate with an opening area, a display area, and a middle area, featuring a light-emitting diode, dam portions, a crack sensing member, and a planarization layer, along with metal layers and insulating layers to facilitate component integration and input sensing, while maintaining structural integrity and display performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If additional components (sensors, cameras) are integrated into the display panel, then the functionality and input/output capability are improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent divides the display panel into distinct functional zones: a display area for visual output, an opening area for component integration, and a middle area as a transition zone. This segmentation allows additional components to be incorporated without disrupting the display functionality, resolving the contradiction between enhanced functionality and structural complexity.
Solution Approach 2:
The middle area serves as an intermediary zone between the display area and the opening area, providing a buffer and transition space. This intermediary structure enables the integration of additional components while maintaining the integrity of both the display area and the opening area, thereby reducing overall device complexity.
2Adaptability or versatility
If the opening area is enlarged to accommodate additional components, then the input/output capability is improved, but the display area is reduced and display quality deteriorates
Solution Approach 1:
The patent applies different quality characteristics to different areas of the display panel. The display area maintains high display quality with optimized pixel density and color accuracy, while the middle area and opening area are designed with different properties to accommodate additional components. This local differentiation allows component integration without compromising display quality.
3Adaptability or versatility
If multiple layers and structures are added to facilitate component integration, then the input/output functionality is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The patent incorporates alignment marks and pre-defined structural features during the manufacturing process to establish precise reference points. These preliminary actions enable subsequent layers and components to be accurately positioned, reducing the overall manufacturing precision requirements for complex multi-layer structures.
4Reliability
If the display panel structure is made more robust to maintain display quality, then the display performance is improved, but the ease of manufacture decreases
Solution Approach 1:
By segmenting the display panel into distinct areas with specific functional requirements, the patent simplifies the manufacturing process. Each area can be optimized and manufactured using appropriate techniques, making the overall structure easier to manufacture while maintaining display quality stability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables the integration of components like cameras or sensors within the display panel by providing a robust structure that maintains display quality and functionality, allowing for efficient input/output operations through the opening area.
Implementation Method 1
a light-emitting diode arranged in the display area and including a first electrode, a second electrode, and a functional layer between the first electrode and the second electrode
Data Source
AI summary
A display panel may include a substrate, a light-emitting diode, a first dam, a crack sensing member, and a planarization layer. The substrate may include a transmission area, a display area at least partially surrounding the transmission area, and an intermediate area positioned between the transmission area and the display area. The light-emitting diode may be positioned on the display area and may include a first electrode, a second electrode, and a functional layer positioned between the first electrode and the second electrode. The first dam may be positioned on the intermediate area. The crack sensing member may be positioned farther from the transmission area than the first dam. The planarization layer may be positioned on the crack sensing member.