Display Panel Metal Plate Filling Layer Sensor Interference
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Solution Overview
Problem
Display apparatuses face defects due to the interaction of various components, particularly the display panel, metal plate, and sensor, where the metal plate's presence can hinder sensor operation and cause stress on the display panel during folding or external impacts.
Innovation Solution
Incorporating a filling layer made of a polymer resin that fills the openings in the metal plate, allowing the display panel to maintain flexibility while ensuring the sensor can operate by transmitting electromagnetic waves, and using a shock mitigating member to prevent damage from external impacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a metal plate is used to support the display panel, then the structural strength is improved, but the sensor operation is hindered due to electromagnetic interference
Solution Approach 1:
The metal plate is segmented by providing openings at the sensor position, allowing electromagnetic waves to pass through while maintaining structural support in other areas. This segmentation resolves the contradiction by separating the support function from the interference-causing regions.
Solution Approach 2:
A filling layer is introduced as an intermediary substance within the openings of the metal plate. This filling layer transmits electromagnetic waves to the sensor while being mechanically supported by the metal plate structure, thus mediating between the conflicting requirements of structural strength and sensor operation.
2Adaptability or versatility
If the display panel is made flexible for folding, then the adaptability is improved, but defect occurrence increases due to stress concentration at component interfaces
Solution Approach 1:
The filling layer is selectively applied at the interface between the display panel and metal plate, providing localized stress distribution improvement. This local quality enhancement reduces stress concentration at critical interfaces while maintaining overall folding flexibility.
Solution Approach 2:
A composite structure is formed by combining the flexible display panel, metal plate with openings, and filling layer material. This composite construction allows the system to benefit from both the flexibility of the display panel and the structural strength of the metal plate, while the filling layer reduces stress concentration at interfaces.
3Reliability
If openings are provided in the metal plate for sensor operation, then the sensor functionality is improved, but the structural strength is reduced
Solution Approach 1:
The filling layer acts as a mediator that fills the openings in the metal plate, providing mechanical support within the openings while allowing electromagnetic wave transmission. This resolves the contradiction by maintaining structural integrity at the opening locations without blocking sensor operation.
Solution Approach 2:
The structural parameters of the metal plate are modified by adding openings, and the filling layer compensates for the strength loss by providing additional support. The filling material's mechanical properties are selected to match or exceed the metal plate's support capability in the opening regions.
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
The filling layer effectively reduces defect occurrence by maintaining panel integrity and sensor functionality, while the shock mitigating member protects against external stresses, enhancing the display apparatus's reliability and usability.
Implementation Method 1
a filling layer 30 filling the opening 21 of the metal plate 20
Implementation Method 2
Incorporating a filling layer made of a polymer resin that fills the openings in the metal plate, allowing the display panel to maintain flexibility
Implementation Method 3
using a shock mitigating member to prevent damage from external impacts
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
A display apparatus capable of reducing a defect occurrence rate includes a display panel, a metal plate including an opening and located under the display panel to contact a lower surface of the display panel to support the display panel, and a filling layer filling the opening and including a material different from a material of the metal plate.