Transparent Antenna Mesh for Wide-Range Wireless Communication
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Solution Overview
Problem
Existing display devices with antenna patterns for short-range wireless communication face challenges in achieving both conductivity for antenna function and light transmissivity for displaying images, limiting the range of wireless communication to a narrow area.
Innovation Solution
A display device configuration that includes a display panel, an antenna pattern for driving, a matching unit, and an antenna pattern for propagation, where the antenna patterns are designed to be electromagnetically coupled and arranged within the display area to ensure wide-range short-range wireless communication while maintaining light transmissivity, using transparent electrode layers or mesh metal patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a metal antenna element is formed in the display section to ensure conductivity for wireless communication, then the antenna function is improved, but light transmissivity deteriorates because metal blocks light
Solution Approach 1:
The antenna element is divided into a mesh-type pattern rather than a continuous metal structure. This segmentation allows light to pass through the gaps between mesh elements while maintaining sufficient conductivity through the distributed conductive paths, resolving the contradiction between antenna function and light transmissivity
Solution Approach 2:
The antenna structure uses different materials or configurations in different regions: transparent conductive materials or mesh patterns in display areas for light transmissivity, and potentially solid metal structures in non-display areas for optimal antenna performance. This local differentiation allows each region to optimize for its specific function
2Ease of manufacture
If a single antenna pattern is formed on the transparent substrate to maintain simplicity, then manufacturing is easier, but the range of wireless communication is limited to a narrow area
Solution Approach 1:
Multiple antenna patterns are formed on the same transparent substrate and electrically connected to work together as a unified antenna system. This merging approach extends the effective communication range while maintaining the simplicity of a single-substrate manufacturing process, avoiding the need for multiple separate components
Solution Approach 2:
The transparent substrate serves multiple functions: it acts as the base for forming antenna patterns, provides mechanical support, and maintains light transmissivity. By making the substrate multi-functional, the patent achieves extended communication range through multiple antenna patterns without adding separate structural elements that would complicate manufacturing
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
Enables both conductivity for antenna functions and light transmissivity for displaying images, allowing short-range wireless communication to be performed in a wide range within the display section, enhancing the device's operational capabilities.
Implementation Method 1
power is supplied to the antenna element for short-range wireless communication incorporated in the communication device, whereby a magnetic field is generated by the antenna element
Implementation Method 2
the antenna pattern for propagation can be electromagnetically coupled with the antenna pattern for driving
Implementation Method 3
by the magnetic field generated by the communication device when the contactless IC card is brought close to the communication device, induced current is caused to flow through the antenna element of the contactless IC card. Thus, electric power can be supplied from the communication device to the contactless IC card
Data Source
AI summary
Provided is a display device that ensures both of the conductivity for realizing the antenna function and the light transmissivity for transmitting light that forms a video image displayed on the display device, and at the same, allows short-range wireless communication to be performed in a wide range in a display section of the display device. A display device 100 includes a display panel 3, an antenna pattern 4 for driving, and antenna patterns 5A, 5B for propagation. The antenna driving unit drives the antenna pattern 4 for driving, at predetermined carrier wave frequency, whereby the antenna pattern 4 for driving and the antenna pattern 5A or 5B for propagation are electromagnetically coupled. As a result, proximity wireless communication can be performed in a wide range of a display area AR1 of the display device 100.