Display Antenna Array Shielding for Reduced Adjacent Interference
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Solution Overview
Problem
Existing display devices in mobile electronic devices face challenges in optimizing the transmission and reception efficiency of wireless communication due to interference between antennas in the antenna array, leading to decreased efficiency.
Innovation Solution
The display device incorporates a shielding member with shielding electrodes between adjacent antennas to block surface waves, ensuring independent operation and minimizing interference, while the antenna array is disposed at the boundary between the antenna and non-display areas, with a transparent dielectric substrate supporting the antenna layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple antennas are arranged closely in an antenna array to improve wireless communication coverage, then the coverage area is improved, but interference between adjacent antennas increases and transmission/reception efficiency decreases
Solution Approach 1:
The patent divides the antenna array into independently controllable antenna groups, where each group can be selectively activated or deactivated based on communication requirements. This segmentation allows the system to reduce interference by deactivating certain antennas while maintaining coverage through others, thus resolving the contradiction between coverage area and transmission efficiency.
Solution Approach 2:
The patent implements dynamic control of antenna elements, allowing the system to adjust which antennas are active based on real-time communication conditions. This dynamic adjustment enables optimization of both coverage area and transmission efficiency by adapting the antenna configuration to current requirements, preventing persistent interference while maintaining adequate coverage.
2Area of stationary object
If the antenna array is disposed at the boundary between antenna area and non-display area to save space, then device compactness is improved, but interference from adjacent regions increases
Solution Approach 1:
The patent introduces a shielding structure as an intermediary element between the antenna array and adjacent regions. This shielding structure acts as a barrier that blocks interference from the non-display area while allowing the antenna array to maintain its compact boundary positioning, thus resolving the contradiction between device compactness and interference reduction.
Solution Approach 2:
The patent extracts the shielding function from the antenna structure itself and implements it as a separate, dedicated component. This extraction allows the antenna array to maintain its compact boundary placement while the separate shielding structure specifically addresses interference from adjacent regions without affecting the antenna's primary function.
3Reliability
If shielding members are added between adjacent antennas to block surface waves and reduce interference, then transmission efficiency is improved, but device complexity increases
Solution Approach 1:
The patent merges the shielding function with the existing antenna support structure or substrate, rather than adding completely separate shielding components. This integration reduces overall device complexity by combining multiple functions into existing structural elements, while still achieving the desired interference blocking between adjacent antennas.
Solution Approach 2:
The patent designs the shielding structure to serve multiple functions simultaneously - it acts as both a support element for the antenna array and an interference-blocking barrier. This multi-functionality reduces the need for additional dedicated shielding components, thereby maintaining simpler device architecture while improving transmission efficiency.
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 the transmission and reception efficiency of wireless communication by reducing interference between antennas, thereby improving overall performance.
Implementation Method 1
a shielding member disposed between adjacent antennas and connected to a ground line. The shielding member includes a shielding electrode between adjacent antennas that blocks surface waves formed along the second direction
Data Source
AI summary
A display device includes a display panel that includes a display area that displays an image, a non-display area disposed at an edge of the display area, and an antenna area that protrudes in a first direction from a part of the non-display area, and an antenna driving substrate electrically connected to an antenna array through an antenna pad disposed adjacent to an end of the antenna area. The antenna array is disposed at a boundary between the antenna area and a portion of the non-display area adjacent to the antenna area. The antenna array includes a plurality of antennas that generate polarized waves in a second direction perpendicular to the first direction and that are disposed at intervals along the second direction, and a shielding member disposed between adjacent antennas and connected to a ground line.