Transparent Display Antenna Grid for Millimeter-Wave Coverage
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Solution Overview
Problem
Electronic devices operating in the millimeter-wave band face challenges with signal coverage and reliability due to the need for complex phased array antenna systems, limited physical space, and interference from display modules, leading to signal blind regions and reduced connectivity.
Innovation Solution
Integrate a transparent dielectric layer with a metal grid on the display apparatus, where the metal grid acts as an antenna radiator, optimizing optical design to maintain transparency and enhance signal coverage without affecting display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a complex phased array antenna system is used to achieve fast steering of high-directivity antenna beam, then beam steering capability is improved, but device complexity increases significantly
Solution Approach 1:
The patent divides the antenna system into multiple independent antenna elements arranged in an array, where each element can be individually controlled. This segmentation allows the complex beam steering function to be achieved through simple phase and amplitude modulation of each element, rather than requiring a complex mechanical steering system.
Solution Approach 2:
The patent combines multiple antenna elements into a single phased array system that functions as one unified antenna. By merging the elements and using constructive interference of electromagnetic waves, the system achieves high directivity and fast beam steering without mechanical movement, significantly reducing system complexity.
2Area of stationary object
If multiple phased array antennas are used to implement spherical coverage, then wireless signal coverage is improved, but the compact structure of the electronic device is compromised
Solution Approach 1:
The patent transitions from traditional planar antenna arrangements to a three-dimensional spherical antenna array configuration. By utilizing the third dimension (vertical/z-axis) in addition to the horizontal plane, the system achieves spherical coverage with a compact structure that fits within the limited device volume, effectively adding spatial dimensionality to the antenna layout.
3Area of stationary object
If a metal grid is added to the display apparatus for antenna function, then signal coverage is improved, but optical transmittance may be affected
Solution Approach 1:
The patent applies local quality by making the metal grid structure transparent or semi-transparent in regions where optical performance is critical, while maintaining full metal coverage in regions dedicated to antenna radiation. This allows different parts of the grid to have different properties: transparent where display quality matters, and opaque where antenna efficiency is prioritized.
Solution Approach 2:
The patent uses composite material structures combining metal conductive elements with transparent dielectric materials. This composite approach allows the antenna grid to maintain electrical conductivity for signal radiation while simultaneously permitting light transmission, thus achieving both antenna functionality and optical transparency in the display apparatus.
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
The integrated antenna structure increases wireless signal coverage, avoiding signal blind regions and ensuring reliable millimeter-wave communication, while maintaining user experience and display effectiveness.
Implementation Method 1
The metal grid includes a first antenna element. The first antenna element includes a radiation component and a feed component
Implementation Method 2
The transparent dielectric layer is disposed between the cover plate and the display panel
Data Source
AI summary
This application provides a display apparatus and an electronic device. A transparent dielectric layer is added to the display apparatus, metal is deposited on the transparent dielectric layer, to form a metal grid, and a part of the metal grid is used as a radiator of an antenna structure. After an antenna is integrated into the display apparatus, through optimization of an optical design, the metal grid may meet a requirement for optical transmittance, and display effect is not obviously affected. In addition, because the antenna structure is integrated into the display apparatus, coverage space of a wireless signal is increased. This avoids occurrence of a signal blind region, so that the electronic device has a more reliable connection in a millimeter-wave band, to meet a communication requirement.