Display Substrate Peripheral Conductive Poles for Static Discharge

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Solution Overview

Problem

Static electricity accumulation negatively affects display quality in display devices, causing issues such as purple or green discoloration, which existing technologies have not adequately addressed.

Innovation Solution

A display substrate with conductive poles arranged in the non-display region, grounded and distributed around the periphery of the display region to transfer static electricity out, combined with a light-shielding structure to prevent re-entry, enhancing anti-static ability and display quality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional display panel structures are used without peripheral conductive poles, then the device complexity is low, but static electricity accumulates causing display quality degradation

Engineering Contradiction:

Improveanti-static abilityVSAvoidstructure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The grounding system is segmented into multiple conductive poles distributed around the periphery of the display region, rather than using a single centralized ground connection. This segmentation allows static electricity to be discharged at multiple locations simultaneously, improving anti-static effectiveness while keeping each individual pole simple in structure

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The conductive poles act as intermediary elements between the base substrate and ground potential. These poles serve as intermediate discharge points that facilitate static electricity transfer from the display panel to ground, resolving the contradiction by introducing a simple intermediary structure that significantly enhances anti-static ability

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If conductive poles are added to transfer static electricity, then static electricity discharge capability improves, but the manufacturing process becomes more complex

Engineering Contradiction:

Improvestatic electricity transfer capabilityVSAvoidmanufacturing process simplicity

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The conductive poles are merged with the existing peripheral structures of the display panel, such as being integrated into the seal structure or frame area. This merging approach allows the conductive poles to be manufactured together with other peripheral components in the same process steps, reducing additional manufacturing complexity while maintaining effective static electricity transfer capability

Inventive Principle:

Principle #5Merging (Combining)

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

Effectively prevents static electricity from impacting the display process, improving display quality by ensuring efficient static electricity discharge and preventing re-entry, thus enhancing the reliability of display devices.

Implementation Method 1

The plurality of conductive poles is grounded and is distributed at the periphery of the display region to transfer static electricity out

Methodology Applied

Scientific EffectElectrical conduction: Conduction (electrical)

Data Source

PatentUS10890809B2Display substrate and display device

Publication Date: 2021.01.12 BEIJING BOE OPTOELECTRONCIS TECH CO LTD

AI summary

A display substrate and a display device are provided. The display substrate includes a display region and a non-display region located at a periphery of the display region. The non-display region includes a plurality of conductive poles arranged on a base substrate, and the plurality of conductive poles is grounded and is distributed at the periphery of the display region to transfer static electricity out.