Display Wiring Shield Electrode Layout for Voltage Coupling Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Display devices face issues with voltage coupling between overlapping wires, which can lead to fluctuations and affect the performance of components like scan lines and connection electrodes.
Innovation Solution
Incorporating a shield electrode that overlaps and is connected to specific components, such as the second connection electrode and first scan line, to reduce coupling by acting as a voltage stabilizer and isolator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If wires are arranged to overlap each other to reduce space usage, then area efficiency is improved, but voltage coupling between wires increases causing performance degradation
Solution Approach 1:
A shield electrode is introduced as an intermediary component between the first scan line and the second connection electrode. This shield electrode acts as a mediator that blocks the harmful electromagnetic coupling between the overlapping wires while allowing the wires to maintain their overlapping arrangement for space efficiency. The shield electrode is connected to a reference potential to provide a stable reference that prevents voltage fluctuations.
2Area of stationary object
If wires are arranged to overlap each other to reduce space usage, then area efficiency is improved, but coupling between wires increases causing voltage fluctuations
Solution Approach 1:
The shield electrode serves as a stabilizing intermediary positioned between the overlapping scan line and connection electrode. It provides a reference potential that stabilizes the electromagnetic environment, preventing voltage fluctuations that would otherwise occur due to the close proximity and overlapping arrangement of the conductors.
3Reliability
If a shield electrode is added to reduce coupling between overlapping wires, then voltage stability is improved, but device complexity increases
Solution Approach 1:
The shield electrode is designed to perform multiple functions: it acts as a shield against electromagnetic coupling, provides a reference potential for voltage stabilization, and serves as part of the overall electrode structure. By making the shield electrode multi-functional, the patent reduces the need for additional separate components, thereby mitigating the increase in device complexity while maintaining voltage stability.
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 shield electrode effectively minimizes voltage fluctuations between different components, enhancing the stability and performance of the display device by reducing coupling between wires and electrodes.
Implementation Method 1
a shield electrode overlapping a part of the first scan line in a direction that is perpendicular to a plane of the substrate... the shield electrode overlaps the first scan line and the second connection electrode in a direction that is perpendicular to a plane of the substrate
Data Source
AI summary
A display device includes: a substrate; a first scan line arranged along a first direction on the substrate; a shield electrode overlapping a part of the first scan line in a direction that is perpendicular to a plane of the substrate; a second connection electrode on the shield electrode; and a data line arranged along a second direction on the second connection electrode, and connected with the second connection electrode, wherein the shield electrode overlapping the first scan line and the second connection electrode in a direction that is perpendicular to a plane of the substrate.