Display-Integrated Antenna Layout With Conductive Cover Grounding
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Solution Overview
Problem
Electronic devices face challenges in accommodating multiple modules, such as antenna, camera, and battery modules, due to size and thickness reductions, necessitating innovative layer configurations to optimize space and performance.
Innovation Solution
The electronic device incorporates a display layer with an antenna layer, a cover layer, and a sensor layer, where the cover layer is electrically conductive and overlaps the antenna, antenna line, and antenna pad, functioning as a ground electrode to enhance frequency signal radiation and bandwidth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the device size and thickness are reduced to accommodate modern electronic modules, then the compact form factor is achieved, but the space for antenna modules and other electronic components becomes insufficient
Solution Approach 1:
The patent transitions the antenna module from a planar configuration to a three-dimensional stacked configuration by placing the antenna layer above the display layer. This vertical arrangement utilizes the thickness dimension of the display device to accommodate the antenna module, thereby solving the space constraint problem while maintaining the compact form factor.
Solution Approach 2:
The antenna module is nested within the display device structure by integrating it with the display layer. The antenna layer is positioned above the display layer, and the cover layer is positioned above the antenna layer, creating a nested multi-layer structure that efficiently utilizes the available space within the device thickness.
2Volume of moving object
If the antenna is placed closer to the display layer to reduce device thickness, then the compact form factor is maintained, but the antenna performance such as gain and bandwidth may be degraded
Solution Approach 1:
The cover layer serves as an intermediary between the antenna layer and the external environment. This cover layer is configured to reflect electromagnetic waves toward the antenna, thereby enhancing antenna performance. By introducing this intermediary layer, the patent achieves both compact thickness and improved antenna performance simultaneously.
Solution Approach 2:
The patent modifies the electrical parameters of the cover layer by configuring it with specific dielectric properties and conductivity characteristics. These parameter changes enable the cover layer to function as an electromagnetic reflector, improving the antenna's gain and bandwidth while maintaining the reduced device thickness.
3Adaptability or versatility
If multiple electronic modules are added to enhance device functionality, then the versatility is improved, but the space availability for each module is reduced
Solution Approach 1:
The patent resolves the space conflict among multiple modules by transitioning from a two-dimensional planar layout to a three-dimensional stacked architecture. Different functional modules (display layer, antenna layer, cover layer) are arranged vertically along the thickness direction, allowing each module to have adequate space while maintaining overall device compactness and supporting enhanced functionality.
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 increases the antenna gain and frequency bandwidth, improving the electronic device's ability to efficiently transmit and receive signals while maintaining a compact form factor.
Implementation Method 1
The cover layer may be electrically conductive. The cover layer may include copper.
Implementation Method 2
This configuration increases the antenna gain and frequency bandwidth, improving the electronic device's ability to efficiently transmit and receive signals
Data Source
AI summary
An electronic device includes a display layer including an active area and a peripheral area adjacent to the active area. An antenna layer is disposed on the display layer and includes an antenna, an antenna line connected to one side of the antenna, and an antenna pad connected to one side of the antenna line. A cover layer is spaced apart from the antenna layer with the display layer disposed therebetween. The cover layer may at least partially overlap each of the antenna, the antenna line, and the antenna pad.