Display Antenna Layer Ground Overlap for Better Signal Radiation
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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 constraints, which affects their ability to efficiently radiate frequency signals.
Innovation Solution
The electronic device incorporates a display layer with a common electrode overlapping the antenna layer, a sensor layer between the display and antenna layers, and a cover layer acting as a ground electrode, which overlaps the antenna, antenna line, and antenna pad, enhancing frequency signal radiation performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the antenna layer is disposed on the display layer with the cover layer overlapping the antenna, then the frequency signal radiation performance is improved, but the device complexity increases due to additional overlapping layers
Solution Approach 1:
The cover layer is designed to serve dual functions: it acts as the ground electrode for the antenna system while simultaneously serving as the display layer. This multi-functionality eliminates the need for separate dedicated ground electrode structures, thereby improving frequency signal radiation performance without proportionally increasing device complexity
Solution Approach 2:
The patent combines the cover layer and ground electrode into a single integrated structure. The cover layer that normally serves as the display interface is merged with the ground electrode function, creating an overlapping configuration that enhances antenna radiation while avoiding the addition of separate structural layers
2Reliability
If the cover layer overlaps the antenna, antenna line, and antenna pad to act as ground electrode, then the radiation range is extended to the antenna pad area, but the manufacturing precision requirements increase
Solution Approach 1:
The patent utilizes the vertical dimension by disposing the antenna layer on the display layer with overlapping configuration. The cover layer overlaps the antenna elements in the thickness direction, creating a three-dimensional ground electrode structure that extends radiation range to the antenna pad area without requiring precise lateral alignment, thus reducing manufacturing precision requirements
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 improves frequency signal radiation performance by extending the radiation range to areas where the antenna pad is located, increasing the device's signal transmission efficiency and communication capabilities.
Implementation Method 1
an antenna layer configured to transmit and/or receive wireless communication signals and including an antenna... wherein the cover layer is a ground electrode for the antenna and at least partially overlaps each of the antenna, the antenna line, and the antenna pad
Data Source
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AI summary
The invention relates to an electronic device (DD) including a display layer (DP) with an active area (DP-AA) and a peripheral area (DP-NAA) adjacent to the active area (DP-AA). An antenna layer (ANL) is disposed on the display layer (DP) and includes an antenna (ANT), an antenna line (ANF) connected to one side of the antenna (ANT), and an antenna pad (ANP) connected to one side of the antenna line (ANF). A cover layer (CL) is spaced apart from the antenna layer (ANL) with the display layer (DP) disposed therebetween. In order to improve frequency signal radiation performance, the cover layer (CL) that provides a ground electrode for the antenna (ANT) at least partially overlaps each of the antenna (ANT), the antenna line (ANF), and the antenna pad (ANP).