Display Housing Assembly With Integrated Antenna and Liquid Sealing
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Solution Overview
Problem
Existing electronic devices face limitations in performance due to the inclusion of multiple components, which can compromise the functionality and portability of wearable devices, particularly in maximizing battery life and optimizing antenna performance.
Innovation Solution
The design incorporates a housing with a display assembly, flexible electrical connectors, and a sealing component that allows for efficient use of internal space, includes a conductive pressure-sensitive adhesive, and utilizes a compliant layer to prevent liquid ingress, while optimizing antenna grounding and tuning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple components are included in the device to enhance functionality, then device performance is improved, but device size and weight increase, compromising portability
Solution Approach 1:
The patent combines multiple functional components into an integrated display assembly where the display layer, touch sensitive layer, and operational components are positioned on opposite sides of a single substrate. This merging reduces the number of separate components and connections needed, thereby reducing overall device weight while maintaining full functionality.
Solution Approach 2:
The substrate serves multiple functions simultaneously: it provides structural support for the display and touch layers, acts as a mounting platform for operational components, and serves as a routing path for flexible electrical connectors. This multi-functionality eliminates the need for separate structural and electrical components, reducing weight.
2Adaptability or versatility
If multiple components are included in the device to enhance functionality, then device performance is improved, but the arrangement and integration complexity increases
Solution Approach 1:
The display assembly is segmented into distinct functional layers (display layer, touch sensitive layer) positioned on opposite sides of the substrate, with flexible electrical connectors providing electrical communication. This segmentation allows each layer to be optimized independently while simplifying the overall integration process through standardized interconnections.
Solution Approach 2:
The substrate acts as an intermediary element that mediates between the display/touch layers and the operational components. It provides a common platform that simplifies the arrangement by bringing all components into proximity, reducing the complexity of wiring and spatial management.
3Productivity
If flexible electrical connectors with electromagnetic antennas are used, then device performance is improved, but antenna performance may be compromised by nearby conductive structures
Solution Approach 1:
The substrate is designed with differentiated local properties: conductive portions where electrical connection is needed, and electromagnetically transparent portions where antenna signals can pass through without interference. This local quality variation allows the substrate to provide structural and electrical functions while minimizing negative impact on antenna performance.
Solution Approach 2:
The flexible electrical connector incorporates an electromagnetic antenna that copies or replicates the necessary electromagnetic functionality within the constrained space of the wearable device. The antenna is integrated into the connector structure itself, allowing it to function despite the presence of other conductive elements in the device.
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
This configuration enhances device performance by maximizing battery capacity and optimizing antenna performance, while maintaining device portability and resistance to environmental factors.
Implementation Method 1
a portion of conductive material overlying the display contact portion and spanning an entire width thereof, the conductive material electrically grounding the display contact portion. The portion of conductive material has a thickness of about 100 microns or less. The portion of conductive material comprises a conductive pressure sensitive adhesive.
Implementation Method 2
a sealing component adhered to the first planar surface and surrounding the aperture... a transparent cover overlying the aperture and defining a second planar surface adhered on the sealing component opposite the first planar surface... The compliant layer has a Shore A hardness of between 5 and 15.
Data Source
AI summary
An electronic device can include a housing defining an aperture and a display assembly at least partially positioned in the aperture. The display assembly can include a substrate having a conductive portion, a display layer having pixels, a touch sensitive layer positioned on a first side of the substrate, an operational component positioned on a second side of the substrate opposite the first side, and a flexible electrical connector electrically coupled with the conductive portion and the operational component. The flexible electrical connector can include an electromagnetic antenna. A transparent cover can overlay the display assembly and can be secured to the housing.