Display Panel Connecting Line Peripheral Relocation

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Solution Overview

Problem

Conventional touch control display panels suffer from crosstalk between connecting lines and signal lines, leading to poor display quality due to the connecting lines extending through the display area.

Innovation Solution

The display panel design includes a connecting line that is entirely outside the display area, within the peripheral area, eliminating crosstalk by not intersecting with signal lines in the display area, and optionally using a transparent conductive material for the connecting line, sense electrode layer, and drive electrode layer in the same layer for simplified fabrication and reduced manufacturing costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the connecting line extends through the display area to connect circuit boards, then the electrical connection between display circuit board and touch button circuit board is established, but crosstalk occurs between the connecting line and signal lines, degrading display quality

Engineering Contradiction:

Improveelectrical connectionVSAvoidcrosstalk

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The connecting line is extracted from the display area and relocated to the peripheral area, separating it from the signal lines to eliminate crosstalk while maintaining electrical connection functionality between circuit boards

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The connecting line is repositioned from a two-dimensional plane within the display area to the peripheral dimension outside the display area, allowing electrical connections without intersecting signal lines and thus eliminating crosstalk interference

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Reliability

If different materials and layers are used for connecting line, sense electrode layer, and drive electrode layer, then electrical connection and touch functionality are achieved, but fabrication complexity increases and manufacturing costs rise

Engineering Contradiction:

Improvetouch functionalityVSAvoidfabrication complexity

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The connecting line, sense electrode layer, and drive electrode layer are merged into the same layer and made of the same transparent conductive material, simplifying the fabrication process and reducing manufacturing costs while maintaining touch functionality

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The same transparent conductive material and layer structure serve multiple functions: as the connecting line for electrical connections, as the sense electrode layer for touch detection, and as part of the drive electrode layer for touch control, eliminating the need for separate materials and layers

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS10037096B2Display panel and display apparatus having the same

Publication Date: 2018.07.31 BOE TECHNOLOGY GROUP CO LTD

AI summary

The present application discloses a display panel comprising a display substrate in a display area and a display circuit board electrically connected to the display substrate; a touch button in a touch button area and a touch button circuit board electrically connected to the touch button; and a connecting line for connecting the display circuit board and the touch button circuit board, the connecting line substantially outside of the display area.