Grid-Line Millimeter-Wave Antenna for Transparent Display Coverage
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Solution Overview
Problem
The challenge in the field of Antenna On Display (AoD) is to prevent the antenna from affecting the display of electronic devices while ensuring high antenna performance, particularly in millimeter-wave frequencies.
Innovation Solution
A millimeter-wave antenna design featuring a grid-line-like structure for both the main feeder line and radiation pattern, with sub-patterns and sub-feeder lines arranged in a specific configuration to increase gain and coverage area, while maintaining high light transmittance for integration into display devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the antenna is located within the displaying region of the screen to increase coverage area, then the coverage area of the antenna is increased, but the displaying performance of the electronic device is affected
Solution Approach 1:
The antenna structure is segmented into multiple electrode units distributed across the display region, with each unit containing feeder lines and radiation patterns divided into sub-regions. This segmentation allows the antenna to cover a larger area while maintaining local transparency and minimizing display interference through distributed, fine-grained electrode arrangements.
Solution Approach 2:
Different regions of the antenna structure are designed with different properties: the feeder lines use transparent conductive materials with specific transmittance characteristics, while the radiation patterns use grid-like structures with optimized line widths and spacing. This local quality optimization ensures high light transmittance in display-critical areas while maintaining antenna performance.
2Reliability
If the antenna structure is designed with complex electrode patterns to increase gain, then the antenna gain is improved, but the light transmittance of the display is reduced
Solution Approach 1:
The antenna design transitions from planar two-dimensional structures to three-dimensional configurations by stacking multiple electrode units at different positions and orientations. This dimensional transition allows the antenna to achieve high gain through spatial diversity while maintaining low visual impact, as the distributed three-dimensional structure appears more transparent from any single viewing angle.
Solution Approach 2:
The antenna employs composite material structures combining transparent conductive oxides (such as ITO, IZO, or GZO) with grid-like transparent conductor patterns. These composite materials provide both the electrical conductivity needed for high antenna gain and the optical transparency required for display integration, resolving the contradiction between radiation efficiency and light transmittance.
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 proposed antenna design achieves high gain and efficient radiation, effectively increasing the coverage area while minimizing interference with the display function of electronic devices, and maintains excellent light transmittance for seamless integration.
Implementation Method 1
the first electrode component includes a first main feeder line and a first radiation pattern... the first sub-patterns are electrically connected to the first main feeder line
Data Source
AI summary
A millimeter-wave antenna, an electronic device and a driving method thereof. The millimeter-wave antenna includes: a first base board; and an electrode layer provided on the first base board, including at least one electrode unit, wherein the electrode unit includes at least a first electrode component, the first electrode component includes a first main feeder line and a first radiation pattern, and both of the first main feeder line and the first radiation pattern are of a grid-line-like structure; and the first main feeder line extends in a first direction, the first radiation pattern includes one or more first sub-patterns, and the first sub-patterns are electrically connected to the first main feeder line, and are located on at least one side of the first main feeder line.