Display Panel GOA Wiring Electrostatic Shielding
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Solution Overview
Problem
Display panel GOA wirings in the non-display area are prone to damage from static electricity, which affects the panel's performance and reliability.
Innovation Solution
Incorporation of an electrostatic shielding unit comprising an electrostatic shielding layer and signal line, connected to a power management chip, which loads a constant voltage signal to prevent static electricity damage to the GOA wirings in the non-display area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If GOA wirings are used in the non-display area to enable gate driving functionality, then the display panel achieves integrated gate driving and reduced external connections, but the GOA wirings become vulnerable to static electricity damage
Solution Approach 1:
An electrostatic shielding layer is introduced as an intermediary component between the GOA wirings and the static electricity environment. This shielding layer acts as a mediator that intercepts and dissipates static electricity charges before they can reach and damage the GOA wirings, thereby protecting the integrated gate driving functionality while maintaining reliability
Solution Approach 2:
The electrostatic shielding layer is positioned and configured in advance to prevent static electricity damage before it can occur. By establishing this protective barrier during the display panel manufacturing process, the system proactively counteracts the harmful static electricity effects rather than reacting to damage after it occurs
2Reliability
If an electrostatic shielding layer is added to protect GOA wirings from static electricity, then the reliability of the display panel improves, but the device complexity and manufacturing process increase
Solution Approach 1:
The electrostatic shielding layer is designed with uniform material composition and consistent structural properties throughout the non-display area. This homogeneous design simplifies the shielding structure by using a single continuous layer rather than complex segmented structures, reducing device complexity while maintaining effective static electricity protection across the entire GOA wiring region
Solution Approach 2:
The electrostatic shielding layer serves multiple functions simultaneously: it provides static electricity protection, acts as a planarization layer for subsequent processing, and can be integrated with existing display panel layers. This multi-functionality reduces the need for additional separate components, thereby limiting the increase in device complexity while achieving reliable protection
3Reliability
If an electrostatic shielding unit is incorporated into the display panel structure, then static electricity damage to GOA wirings is prevented, but the manufacturing precision requirements increase
Solution Approach 1:
The electrostatic shielding layer is designed to create an equipotential region over the GOA wirings by maintaining uniform electrical potential across the shielding layer. This equipotential design reduces the need for precise local positioning variations, as the entire shielding layer works collectively to protect the wirings, thereby reducing manufacturing precision requirements while maintaining effective protection
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 protects GOA wirings from static electricity, ensuring the display panel's integrity and performance by providing a dedicated shielding mechanism without altering the existing manufacturing processes significantly.
Implementation Method 1
an electrostatic shielding unit, the electrostatic shielding unit being disposed at least corresponding to the GOA wirings of part of the GOA wiring area, the electrostatic shielding unit being configured to prevent the GOA wirings from being damaged by static electricity
Data Source
AI summary
A display panel has a non-display area comprising a GOA wiring area is provided. The display panel includes GOA wirings disposed in the GOA wiring area, and an electrostatic shielding unit, disposed at least corresponding to the GOA wirings of part of the GOA wiring area. The electrostatic shielding unit is configured to prevent the GOA wirings from being damaged by static electricity.