Gate-in-panel LCD Static Electricity Prevention
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Solution Overview
Problem
The manufacturing process of LCD devices with a gate-in-panel (GIP) structure is prone to static electricity-induced malfunctions, which can damage signal lines and circuit elements, particularly affecting the start pulse line connected to the gate driving circuit.
Innovation Solution
Incorporating a static electricity preventer, comprising a capacitor with lower and upper electrodes opposite each other across a dielectric film, connected to the start pulse line to discharge static electricity, and a manufacturing method that forms these components on the substrate to prevent static electricity induction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a gate-in-panel structure is implemented to reduce size and weight, then the LCD device achieves compact integration, but the structure becomes more susceptible to static electricity-induced malfunctions
Solution Approach 1:
The patent introduces a capacitor as an intermediary component between the start pulse line and the gate driving circuit. This capacitor acts as a mediator that captures and dissipates static electricity charges before they can reach and damage the gate driving circuit, thus protecting the integrated structure while maintaining compact size.
Solution Approach 2:
The capacitor is positioned in advance on the start pulse line to provide protective cushioning against static electricity. By placing this protective element beforehand in the signal path, the system prepares for potential static discharge events, allowing safe dissipation of charges before they can cause malfunctions in the integrated gate-in-panel structure.
2Adaptability or versatility
If the gate driving circuit is directly formed on the LCD panel, then integration is improved, but vulnerability to static electricity damage increases
Solution Approach 1:
The capacitor serves as a protective intermediary inserted into the start pulse line that connects to the gate driving circuit. This intermediary component intercepts static electricity charges in the integrated structure, preventing them from reaching and damaging the gate driving circuit while maintaining the benefits of direct panel integration.
Solution Approach 2:
The patent applies preliminary anti-action by placing the capacitor in advance on the start pulse line to counteract potential static electricity effects. This preemptive measure creates a protective barrier that neutralizes harmful static charges before they can affect the integrated gate driving circuit, thus protecting the highly integrated structure without compromising its compactness.
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 solution effectively prevents static electricity from inducing malfunctions in the start pulse line and protects the LCD panel from damage, ensuring reliable operation of the gate driving circuit.
Implementation Method 1
a static electricity preventer disposed on the start pulse line adjacent to the gate driving circuit and configured to prevent static electricity from being induced in the start pulse line
Data Source
AI summary
An LCD device with a GIP structure is disclosed. The LCD device includes: a liquid crystal display panel with an active area used to display images; a gate driving circuit formed on a side edge of the liquid crystal display panel and configured to apply scan signals to the active area; a start pulse line configured to transfer a start pulse to the gate driving circuit; and a static electricity preventer disposed on the start pulse line adjacent to the gate driving circuit and configured to prevent static electricity from being induced in the start pulse line.