Display Panel Shielding Layout for AC Signal Coupling
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Solution Overview
Problem
Display panels with extremely narrow bezels or high-resolution screens face issues due to the coupling effect of alternating current signals between adjacent components, leading to uneven display and abnormal performance.
Innovation Solution
A display panel design that includes a metal shielding layer between gate units to shield alternating current signals, with the shielding layer electrically connected to a constant voltage terminal and strategically positioned to reduce signal interference, thereby improving display uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the wiring of array units is made dense to achieve high-resolution display, then the resolution is improved, but the coupling effect of AC signals between adjacent components increases causing uneven display
Solution Approach 1:
A metal shielding layer is introduced as an intermediary component between adjacent gate lines and data lines. This shielding layer, made of conductive material, acts as a mediator that blocks the harmful AC signal coupling while allowing the dense wiring configuration to maintain high display resolution. The shielding layer is connected to a reference potential to effectively suppress the coupling effect.
Solution Approach 2:
The metal shielding layer is strategically positioned only in critical areas where AC signal coupling occurs between adjacent gate lines and data lines. This localized shielding approach maintains high resolution in the overall display while specifically addressing the coupling problem in targeted regions, rather than uniformly increasing shielding throughout the entire display structure.
2Object-affected harmful factors
If a metal shielding layer is added to reduce AC signal coupling, then the coupling effect is reduced, but the device complexity increases
Solution Approach 1:
The metal shielding layer is merged with the existing pixel electrode structure or integrated into the same fabrication process steps as other conductive layers. By combining the shielding function with existing structural elements rather than adding completely separate components, the design reduces overall device complexity while still achieving effective AC signal suppression.
Solution Approach 2:
The metal shielding layer serves multiple functions simultaneously: it acts as an AC signal shield, provides electrical connection to reference potential, and can be integrated with the pixel electrode structure. This multi-functionality reduces the need for additional separate components, thereby minimizing the increase in device complexity while achieving the desired coupling reduction.
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 metal shielding layer effectively reduces the influence of AC signals between adjacent gate units, preventing uneven display and enhancing overall display performance by applying the principle of electrical shielding.
Implementation Method 1
The metal shielding layer is configured to shield an alternating current signal between two adjacent gate units
Data Source
AI summary
A display panel and a manufacturing method thereof are provided. The display panel includes a substrate, a gate layer including a plurality of gate units disposed over the substrate, a first insulating layer disposed on the gate layer, and a metal shielding layer disposed on the first insulating layer. The metal shielding layer includes metal shielding units corresponding to the gate units. By setting the metal shielding layer, an electric shielding principle is used to reduce an influence of an alternating current signal between the gate units and improve display performance.