Foldable Display Edge Conductor Layout for Antenna Radiation

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Solution Overview

Problem

Static electricity flowing into foldable electronic devices through the edges of flexible displays can degrade antenna radiation performance by hiding the antenna radiation area and inducing static electricity to a conductive plate connected to a common ground.

Innovation Solution

A conductive member is designed in discontinuous patterns to induce static electricity to ground, improving antenna performance by reducing overlap with the antenna radiation area.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a continuous conductive member is used to induce static electricity to ground, then static electricity protection is improved, but antenna radiation performance deteriorates due to hiding the antenna radiation area

Engineering Contradiction:
Improvestatic electricity protectionVSAvoidantenna radiation performance
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The conductive member is divided into multiple discontinuous patterns instead of using a continuous conductive layer. This segmentation allows the conductive member to induce static electricity to ground while creating gaps that prevent complete blocking of the antenna radiation area, thus resolving the contradiction between static electricity protection and antenna radiation performance

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The conductive member is strategically positioned and patterned to provide localized static electricity induction only where needed, rather than using a uniform continuous layer. This local quality approach allows static protection in specific areas while maintaining antenna radiation performance in other areas

Inventive Principle:
Principle #3Local quality

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 conductive member effectively directs static electricity to ground, enhancing antenna radiation performance by minimizing interference and maintaining signal integrity.

Implementation Method 1

Static electricity flowing from an outside may flow into the inside of the foldable electronic device through the edge of the flexible display. Such static electricity may be induced to a conductive plate electrically connected to a common ground of the electronic device through a conductive member disposed on the bending part

Methodology Applied
Scientific EffectElectrostatic induction: Electrostatic Induction

Data Source

PatentEP4712457A1Method and electronic device for improving antenna performance
Publication Date: 2026.03.18 SAMSUNG ELECTRONICS CO LTD
  • EP4712457A1 patent drawingFigure 1
  • EP4712457A1 patent drawingFigure 2
  • EP4712457A1 patent drawingFigure 3

AI summary

According to various embodiments, an electronic device may include: a first housing; a second housing foldably connected to the first housing through a hinge device; a flexible display disposed to be supported by the second housing through the hinge device from the first housing; and a protective frame disposed on the second housing while the edge of the flexible display is disposed S between the protective frame and the second housing, wherein a conductive member may be disposed between the protective frame and the edge of the flexible display on the basis of at least one pattern. In addition, various embodiments may be possible.