Photovoltaic Layer Antenna Layout for Conductive Housing Devices
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Solution Overview
Problem
Conventional electronic devices with conductive housings and bezels cause interference and signal reduction for antennas positioned within or along their outer surfaces, making it impractical to integrate antennas effectively.
Innovation Solution
The integration of one or more antennas within the photovoltaic layer of a solar cell allows for the use of conductive materials for the device housing and bezel, minimizing interference and enhancing antenna performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If antennas are positioned within or along the outer surface of the device, then wireless communication functionality is enabled, but signal reception and transmission are reduced due to interference from conductive housing and bezel materials
Solution Approach 1:
The patent integrates antennas within the photovoltaic layer of the display assembly, transitioning the antenna positioning from traditional side-wall or bezel locations to a planar surface within the display stack. This dimensional relocation allows antennas to operate within the display assembly's internal layers, away from conductive housing interference, while maintaining wireless communication functionality.
Solution Approach 2:
The patent embeds antennas within the photovoltaic layer structure of the display assembly, nesting the antenna elements inside the existing display stack layers. This nesting approach allows antennas to be positioned within the display assembly without adding external protrusions, while the photovoltaic layer serves as both the antenna substrate and power generation component.
2Strength
If housing and bezel are formed from conductive materials, then structural strength and aesthetic appearance are improved, but antenna signal reception and transmission are reduced due to electromagnetic interference
Solution Approach 1:
The patent extracts antennas from traditional positions near conductive housing surfaces and relocates them to the photovoltaic layer within the display assembly. This extraction removes antennas from the interference zone of conductive housing materials, allowing the housing to maintain its conductive construction for structural strength and aesthetics without compromising antenna performance.
3Reliability
If antennas are positioned away from conductive materials, then signal interference is reduced, but device complexity increases due to additional structural requirements
Solution Approach 1:
The patent utilizes the photovoltaic layer of the display assembly to serve dual functions: as the substrate for antenna integration and as the light-to-electricity conversion component. This multi-functionality approach allows antennas to be positioned within an existing functional layer without adding separate structural components, thereby reducing overall device complexity while achieving signal isolation from conductive housing.
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 solution enables electronic devices to utilize conductive materials for their housings and bezels without compromising antenna performance, thereby improving signal reception and transmission.
Implementation Method 1
The solar cell includes a substrate and a photovoltaic (PV) layer configured to output an electric power having a power level corresponding to an intensity of light received by the solar cell
Data Source
AI summary
An electronic device comprises a housing, a display stack, a solar cell, a first antenna and a second antenna. The housing includes a bottom wall and a side wall coupled to the bottom wall, the side wall and the bottom wall define a portion of an internal cavity. The display stack includes a solar cell configured to output electric power having a power level corresponding to an intensity of light received by the solar cell. The solar cell includes a substrate layer and a photovoltaic layer, the photovoltaic layer including a first region having an annular shape and a first opening in the first region and a second region in an area enclosed by the first region and having a second opening. The first antenna is formed by the first opening and the second antenna is formed by the second opening.