Millimeter-Wave Display Antenna Layout With Metal Mesh Transparency
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Solution Overview
Problem
The integration of millimeter-wave antennas into display devices poses challenges due to the strong blocking effects of metal traces in the display module, which interfere with electromagnetic wave transmission, necessitating innovative designs to maintain display performance and communication functionality.
Innovation Solution
The integration of a millimeter-wave antenna with a radiating plate positioned above the display module and a feed line beneath it, utilizing a metal mesh material to ensure transparency and minimize interference, along with a coupled feeding approach to facilitate wave transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a millimeter-wave antenna is integrated into a display device with traditional metal trace structure, then the antenna can be incorporated into the display module, but the metal traces strongly block electromagnetic wave transmission and interfere with communication functionality
Solution Approach 1:
The patent applies this principle by replacing traditional solid metal traces with a metal mesh structure. The metal mesh consists of conductive metal lines arranged in a grid pattern with spaced intervals, creating a porous structure that allows electromagnetic waves to pass through while maintaining electrical conductivity for antenna functionality. This resolves the contradiction by enabling both antenna integration and electromagnetic wave transmission.
Solution Approach 2:
The patent applies this principle by combining the metal mesh structure with the display module's existing layers (display area, touch structure, etc.) to create a composite antenna system. The metal mesh is integrated as a specific layer within the display module, forming a composite structure that achieves both display functionality and millimeter-wave communication capability without mutual interference.
2Device complexity
If metal traces are used for antenna construction in the display module, then the antenna structure can be formed, but the metal traces interfere with electromagnetic wave transmission
Solution Approach 1:
The patent replaces solid metal traces with a metal mesh structure featuring spaced conductive lines. This porous configuration reduces electromagnetic wave blocking while maintaining sufficient electrical conductivity for antenna operation, thereby improving wave transmission reliability without significantly increasing structural complexity.
Solution Approach 2:
The patent transitions from traditional planar metal traces to a three-dimensional metal mesh structure with vertical spacing and grid patterns. This dimensional change allows electromagnetic waves to pass through the gaps in the mesh while the conductive elements maintain antenna functionality, resolving the contradiction between structural simplicity and transmission reliability.
3Adaptability or versatility
If the radiating plate is positioned in the display area, then the antenna can be integrated, but it may affect display performance and subpixel arrangement
Solution Approach 1:
The patent applies this principle by differentiating the display area into two sub-areas: a first display sub-area with normal subpixel density for high-quality display, and a second display sub-area with reduced subpixel density where the antenna components are positioned. This local differentiation allows the antenna to be integrated without compromising the display performance of the main display area.
Solution Approach 2:
The patent segments the display area into distinct functional zones: the first display sub-area dedicated to high-quality visual output with complete subpixel arrangements, and the second display sub-area that accommodates antenna components with modified subpixel patterns. This segmentation resolves the contradiction by isolating the antenna integration from the critical display performance area.
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 design enables effective millimeter-wave communication while maintaining display performance by using a metal mesh antenna that avoids affecting the display's functionality and enhances transparency, overcoming the blocking effects of metal traces.
Implementation Method 1
the radiating plate, the feed line, the ground plate, and the slot are at least partially in the second display sub-area and outside the first display sub-area
Data Source
AI summary
A display apparatus is provided. The display apparatus includes a display area and a peripheral area. The display area includes a first display sub-area and a second display sub-area. The second display sub-area has a subpixel distribution density lower than a subpixel distribution density of the first display sub-area. The display apparatus further includes an antenna, a touch structure, and a display module. The antenna includes a radiating plate, a feed line, a ground plate, and a slot extending through at least the ground plate. The radiating plate, the feed line, the ground plate, and the slot are at least partially in the second display sub-area and outside the first display sub-area.