Flat Cable Segmentation for Flexibility and Noise Resistance

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Solution Overview

Problem

Conventional flat-type cables lack flexibility and are prone to noise interference due to signal line alignment issues, while wire-type cables are expensive and susceptible to defective connections.

Innovation Solution

A flat cable design with signal lines divided into groups separated by slits and connected with a binding member, featuring a tubular shape and helical cutting line, along with a mesh-patterned sheath and noise-intercepting shield, allows for improved flexibility and noise reduction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a flat-type cable is used to reduce cost and noise interference, then unit cost and noise resistance are improved, but flexibility deteriorates

Engineering Contradiction:
Improvenoise resistanceVSAvoidflexibility
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The flat cable is divided into multiple bundles, with each bundle containing a group of signal lines. These bundles are separated by spaced sections rather than being tightly bound together, allowing the cable to be flexible while maintaining noise resistance through the separated structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The cable employs a flexible binding structure that allows the bundles to move relative to each other while maintaining connection. The spaced sections between bundles provide flexibility similar to wire-type cables while maintaining the flat cable's cost and noise resistance advantages.

Inventive Principle:
Principle #30Flexible shells and thin films

2Ease of operation

If signal lines are tied together in a wire-type cable for flexibility, then ease of operation is improved, but noise interference and connection defects increase

Engineering Contradiction:
ImproveflexibilityVSAvoidnoise resistance
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

Instead of tying all signal lines together as in conventional wire-type cables, the invention segments the signal lines into separate bundles with spaced sections between them. This segmentation reduces electromagnetic interference between adjacent signal lines while preserving the cable's flexibility through the bundled structure.

Inventive Principle:
Principle #1Segmentation

3Reliability

If flat cable signal lines are spread out to reduce noise, then noise resistance is improved, but flexibility and ease of connection deteriorate

Engineering Contradiction:
Improvenoise resistanceVSAvoidflexibility
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The signal lines are organized into bundles with spaced sections between them, combining the noise resistance benefits of spread-out lines with the flexibility benefits of bundled structures. The spaced sections allow bundles to move independently while maintaining overall cable flexibility.

Inventive Principle:
Principle #1Segmentation

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 design enhances flexibility and noise resistance, matching the flexibility of wire-type cables while reducing assembly defects and costs.

Implementation Method 1

a shield which is provided in the separating section and intercepting noise

Methodology Applied
Scientific EffectElectromagnetic shielding: Faraday Cage

Implementation Method 2

a binding member having a tubular shape and that secures the plurality of signal groups to one another

Methodology Applied
Scientific EffectMechanical fastening: Mechanical Fastener

Data Source

PatentEP2690632B1Display apparatus with a flat cable
Publication Date: 2014.05.14 SAMSUNG ELECTRONICS CO LTD
  • EP2690632B1 patent drawingFigure 1A
  • EP2690632B1 patent drawingFigure 1B
  • EP2690632B1 patent drawingFigure 1C

AI summary

A flat cable for connecting a plurality of devices includes a plurality of signal lines which are divided into a plurality of signal groups, wherein at least a part of the signal groups are separated by a separating section; and a plurality of connectors which are respectively provided at opposite ends of the plurality of signal lines and respectively connectable to the plurality of devices.