Touch Panel Conductive Bridge Layout for Lower Visual Interference

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Solution Overview

Problem

Existing touch panels suffer from visibility issues due to the prominent appearance of conductive bridges, which are typically large and non-uniformly arranged, affecting their aesthetic appeal and functionality.

Innovation Solution

A novel touch panel design featuring a specific arrangement of conductive bridges with reduced dimensions and symmetrical distribution, along with auxiliary electrodes, to minimize visibility and enhance structural uniformity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If conventional conductive bridges are used with larger size and non-uniform arrangement, then electrical connectivity is ensured, but visibility and aesthetic appeal deteriorate

Engineering Contradiction:
Improveelectrical connectivityVSAvoidvisibility of conductive bridges
Core Design Contradiction:
Ease of manufactureVSShape

Solution Approach 1:

The patent applies parameter changes by reducing the size of conductive bridges and changing their arrangement pattern from non-uniform to symmetrical. Specifically, the conductive bridges are designed with minimized dimensions and arranged in a symmetrical pattern around the central electrode, which reduces their visual prominence while maintaining electrical connectivity functionality.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent employs asymmetry in reverse by introducing symmetry into the conductive bridge arrangement. The conductive bridges are positioned symmetrically with respect to the central electrode, creating a balanced and uniform appearance that reduces visual disruption compared to conventional non-uniform arrangements.

Inventive Principle:
Principle #4Asymmetry

2Reliability

If conductive bridges are made more prominent to ensure connectivity, then electrical performance is improved, but aesthetic appeal and visibility are worsened

Engineering Contradiction:
Improveelectrical connectivityVSAvoidvisual disruption
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent changes the parameters of conductive bridges by minimizing their size and optimizing their arrangement. The bridges are designed with reduced dimensions and positioned in a symmetrical pattern that maintains electrical reliability while minimizing visual disruption to the display surface.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent applies local quality by optimizing the specific arrangement and dimensions of conductive bridges in different regions. The symmetrical arrangement ensures that conductive bridges are distributed uniformly around the central electrode, creating consistent visual quality across the display surface while maintaining local electrical connectivity.

Inventive Principle:
Principle #3Local quality

3Shape

If symmetrical arrangement of conductive bridges is implemented, then aesthetic appeal is improved, but manufacturing complexity increases

Engineering Contradiction:
Improveuniformity of arrangementVSAvoidarrangement complexity
Core Design Contradiction:
ShapeVSDevice complexity

Solution Approach 1:

The patent employs symmetry in the arrangement of conductive bridges around the central electrode. This symmetrical configuration creates a uniform and aesthetically pleasing appearance, with conductive bridges positioned at equal intervals and orientations relative to the center, simplifying the visual pattern while maintaining manufacturing feasibility.

Inventive Principle:
Principle #4Asymmetry

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 new design reduces the visibility of conductive bridges by minimizing their size and optimizing their arrangement, thereby improving the aesthetic appeal and functional performance of the touch panel.

Implementation Method 1

a first transparent conductive oxide layer and a second transparent conductive oxide layer which are different from each other in terms of material composition or crystal structure

Methodology Applied
Scientific EffectCapacitance: Capacitance

Data Source

PatentEP4006701B1Touch control panel and touch control display panel
Publication Date: 2025.11.19 BOE TECHNOLOGY GROUP CO LTD
  • EP4006701B1 patent drawingFigure 1
  • EP4006701B1 patent drawingFigure 2
  • EP4006701B1 patent drawingFigure 3

AI summary

The present disclosure provides a touch panel and a touch display panel. The touch panel includes: a base substrate, and a first conductive layer, an insulation layer , and a second conductive layer that are sequentially arranged along a direction away from the base substrate. The first conductive layer includes: a first touch electrode, a second touch electrode, a third touch electrode, a fourth touch electrode, a first connection electrode, and a second connection electrode. The insulation layer includes: two first insulation pads, two second insulation pads, two third insulation pads, and two fourth insulation pads. The second conductive layer includes: two first conductive bridges, two second conductive bridges, two third conductive bridges, and two fourth conductive bridges. The present disclosure is applied to touch panels.