Display Device Electrode Structure for Static Electricity Discharge
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Solution Overview
Problem
Display devices are vulnerable to static electricity, which can flow through wires and damage the insulating layer, leading to defects.
Innovation Solution
A display device design featuring a first and second substrate with electrodes and short electrodes that connect the common voltage wire to the second electrode, positioned along the border, effectively directing static electricity away from the display area through driving circuit units and power voltage lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If wires are positioned in the peripheral area to supply power to the display area, then power supply function is achieved, but static electricity can flow through the wires and damage the insulating layer
Solution Approach 1:
A ground electrode is introduced as an intermediary component between the wires and the insulating substrate. The ground electrode is positioned in the peripheral area and connected to a ground potential, serving as a mediator that intercepts static electricity before it can flow through the power supply wires to damage the insulating layer. This intermediary structure provides a safe discharge path for static electricity while maintaining the power supply function.
Solution Approach 2:
The invention converts the harmful static electricity into a beneficial protective mechanism. By positioning the ground electrode to receive static electricity charges, the harmful static discharge is redirected to safely ground the insulating substrate. This transforms the potential damage into a protective grounding function that actually prevents harm to the display device components.
2Device complexity
If the display panel structure is simplified, then manufacturing cost is reduced, but the display panel becomes more vulnerable to static electricity
Solution Approach 1:
The display panel structure is segmented into functional zones: a display area and a peripheral area. The ground electrode is specifically positioned in the peripheral area, separating the static electricity protection function from the display function. This segmentation allows the invention to add protection without complicating the overall display panel structure, maintaining simplicity while improving reliability.
Solution Approach 2:
The ground electrode structure provides self-service protection by automatically grounding the insulating substrate when static electricity accumulates. The electrode inherently creates a discharge path without requiring additional control systems or complex mechanisms. This self-service approach maintains structural simplicity while ensuring reliable static electricity protection through the inherent grounding capability.
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
This configuration reduces or eliminates the flow of static electricity into the display device, thereby minimizing defects and ensuring the integrity of the insulating layer.
Implementation Method 1
one or more short electrodes electrically connect the first electrode and the second electrode
Data Source
AI summary
Disclosed is a display device, including a first substrate and a second substrate facing the first substrate. A first electrode is positioned on a first surface of the first substrate facing the second substrate. A second electrode is positioned along a border of the second substrate facing the first substrate. The second electrode faces the first electrode. One or more short electrodes electrically connect the first electrode and the second electrode.