Transparent Antenna Device with Light Transmitting Region

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Solution Overview

Problem

Existing antenna devices obstruct the view of the landscape behind them due to their opaque design, limiting user experience in environments where visibility is important.

Innovation Solution

A transparent antenna device is designed with a transparent substrate and a light transmitting region that allows for 35% to 85% transmittance, enabling users to see through the device while maintaining effective antenna functionality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If the antenna device uses opaque materials for the substrate and electrode layers, then the antenna structure provides effective signal transmission and shielding, but the device obstructs the view of the landscape behind it

Engineering Contradiction:

Improvelight transmittanceVSAvoidantenna functionality

Core Design Contradiction:

Illumination intensityVSReliability

Solution Approach 1:

The antenna device is divided into distinct functional regions: a circuit layout region containing electrodes and components, and a light transmitting region with enhanced transparency. This segmentation allows each region to optimize its primary function while maintaining overall device performance.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different regions of the antenna device have different optical properties. The light transmitting region uses transparent substrate and reduced metal content to achieve 35%-85% transmittance, while the circuit layout region maintains traditional opaque characteristics for reliable electrical performance. Each region's material composition is locally optimized for its specific function.

Inventive Principle:

Principle #3Local quality

2Illumination intensity

If the antenna device uses transparent materials with high light transmittance, then users can see the landscape through the device, but the antenna structure may lose effective shielding and signal transmission capability

Engineering Contradiction:

Improvelight transmittanceVSAvoidsignal interference

Core Design Contradiction:

Illumination intensityVSObject-affected harmful factors

Solution Approach 1:

The antenna electrodes are configured to extend in multiple dimensions and orientations within the transparent substrate. This multi-dimensional electrode arrangement maintains effective radiation patterns and signal transmission while using transparent conductive materials that allow light passage.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The antenna device employs composite material structures combining transparent conductive oxides, transparent polymers with conductive fillers, or ultra-thin metal layers deposited on transparent substrates. These composite materials provide both the electrical conductivity needed for antenna function and the optical transparency required for visibility.

Inventive Principle:

Principle #40Composite materials

3Illumination intensity

If the antenna device reduces metal content and uses transparent substrate, then light transmittance increases to 35%-85%, but the manufacturing complexity increases

Engineering Contradiction:

Improvelight transmittanceVSAvoidmanufacturing process complexity

Core Design Contradiction:

Illumination intensityVSDevice complexity

Solution Approach 1:

The manufacturing process controls critical parameters such as metal layer thickness (reduced to ultra-thin ranges), metal particle concentration in transparent composites, and substrate material selection to achieve the target 35%-85% transmittance range. These parameter optimizations balance optical performance with manufacturing feasibility.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

Traditional metal deposition and assembly processes are replaced with techniques such as sputtering transparent conductive oxides, screen printing transparent conductive pastes, or injecting transparent polymer composites. These substitutions simplify manufacturing while achieving the required optical and electrical properties.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS20250192435A1Antenna device

Publication Date: 2025.06.12 AU OPTRONICS CORP

AI summary

A transparent antenna device includes a transparent substrate, an antenna electrode layer, an active device layer, a redistribution structure and a chip. The antenna electrode layer is located on the first surface of the transparent substrate and includes an antenna electrode located in a circuit layout region of the transparent antenna device. The active device layer is located above the second surface of the transparent substrate and includes an active device located in the circuit layout region. The redistribution structure is located on the active device layer and includes a signal line and a pad located in the circuit layout region. The chip is bonded to the pad of the redistribution structure and is located in the circuit layout region. The transparent antenna device has a light transmitting region located next to the circuit layout region.