Display Conductive Layer as Antenna Radiator

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Solution Overview

Problem

The challenge is to maintain excellent antenna radiation performance and miniaturization in mobile communication terminals without increasing the size or active area, as traditional antenna designs require separate mounting spaces that contradict the trend towards slimness and miniaturization.

Innovation Solution

Utilizing the conductive layer of the display as an antenna radiator, eliminating the need for a separate antenna device and thus preserving display visibility while achieving miniaturization by integrating the antenna function within the display's structure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a separate antenna device is installed in the mobile communication terminal, then wireless communication function is enabled, but the size of the terminal increases and mounting space is consumed

Engineering Contradiction:
Improvewireless communication functionVSAvoidterminal size
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

The patent merges the antenna function with the display structure by using the conductive layer of the display as the antenna radiator. This integration eliminates the need for a separate antenna device, thereby maintaining wireless communication capability while reducing terminal volume and eliminating dedicated mounting spaces.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The conductive layer of the display serves dual purposes: it functions as both the display structure and the antenna radiator. This multi-functionality allows the same component to fulfill multiple roles, reducing the overall number of components and terminal size.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If a separate antenna device is installed in the mobile communication terminal, then wireless communication function is enabled, but the mounting space and active area are consumed

Engineering Contradiction:
Improvewireless communication functionVSAvoidmounting space
Core Design Contradiction:
ReliabilityVSArea of stationary object

Solution Approach 1:

The antenna function is merged with the display structure, allowing the conductive layer to serve as both the display component and the antenna radiator. This eliminates the need for separate mounting spaces and active areas dedicated to antenna installation.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The display's conductive layer performs multiple functions simultaneously - it acts as the display structure and as the antenna radiator. This multi-functionality eliminates the need for dedicated mounting spaces, as the antenna shares the same space as the display.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Volume of moving object

If the area for mounting the antenna is reduced, then miniaturization is achieved, but antenna radiation performance deteriorates

Engineering Contradiction:
Improveantenna device sizeVSAvoidantenna radiation performance
Core Design Contradiction:
Volume of moving objectVSReliability

Solution Approach 1:

The patent changes the physical parameters of the antenna by utilizing the conductive layer of the display, which has specific electrical and physical properties. By adjusting the design parameters such as the shape, size, and configuration of the conductive layer, excellent radiation performance is achieved within a compact form factor suitable for miniaturized terminals.

Inventive Principle:
Principle #35Parameter changes

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 approach enhances antenna radiation performance without degrading display visibility and allows for the miniaturization of electronic devices by eliminating the need for a separate antenna, thereby maintaining the slimness and efficiency of the device.

Implementation Method 1

utilize the conductive layer of a display as an antenna radiator

Methodology Applied
Scientific EffectElectromagnetic radiation: Electromagnetic Induction

Data Source

PatentEP3446359B1Electronic device including display
Publication Date: 2021.10.27 SAMSUNG ELECTRONICS CO LTD
  • EP3446359B1 patent drawingFigure 1
  • EP3446359B1 patent drawingFigure 2A~2C
  • EP3446359B1 patent drawingFigure 3~4

AI summary

An electronic device that utilizes a display as an antenna is provided. The electronic device may include a display including a conductive layer, a signal power supply part electrically coupled to the conductive layer in order to utilize the conductive layer as an antenna radiator, and a substrate electrically connected to the signal power supply part so as to receive a signal of an antenna radiator of the conductive layer through the signal power supply part.