Shield Electrode for Display Panel Crosstalk Reduction
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Solution Overview
Problem
Existing display panels experience signal crosstalk and uneven display due to coupling between the common electrode and data lines, leading to unstable voltages that cannot be quickly recovered, affecting display quality.
Innovation Solution
Incorporating a shield electrode between the scan lines and pixel electrodes, and using conductive support columns to connect the common electrode wire, which helps to weaken or eliminate the electric field and stabilize voltages by shielding the common electrode from the data lines and scan lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the common electrode and data lines are disposed close to each other to simplify structure, then device complexity is reduced, but signal crosstalk and voltage instability occur due to electric field coupling
Solution Approach 1:
The patent introduces a shield electrode as an intermediary component between the common electrode and the data/scan lines. This shield electrode is electrically connected to the common electrode and positioned to intercept and redirect electric field lines, thereby preventing direct coupling between the common electrode and the signal lines while maintaining structural simplicity
2Device complexity
If the common electrode and scan lines are disposed close to each other to simplify structure, then device complexity is reduced, but signal crosstalk and uneven display occur due to electric field coupling
Solution Approach 1:
The shield electrode serves as a mediator that intercepts electric field lines between the scan lines and common electrode, preventing field distortion that would cause uneven display. By positioning the shield electrode between these components, the patent eliminates the need for precise spacing control while maintaining display uniformity
3Ease of manufacture
If no shield electrode is used to reduce device complexity, then manufacturing is simpler, but coupling phenomenon causes signal crosstalk and voltage instability
Solution Approach 1:
The shield electrode is introduced as a mediator that blocks harmful electric field coupling between the common electrode and signal lines. The shield electrode is electrically connected to the common electrode and positioned to intercept field lines, thereby eliminating signal crosstalk and voltage instability while maintaining ease of manufacture through integration with existing layers
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 solution effectively inhibits coupling between the common electrode and data lines, improves voltage stability, and allows for quick recovery of voltages, resulting in enhanced display quality and reduced production costs through simplified manufacturing processes.
Implementation Method 1
by using a shielding action of the shield electrodes, the electric field formed between the common electrode and the scan lines is weakened or eliminated
Data Source
AI summary
The present application provide a display panel and a manufacturing method thereof. The display panel includes a base substrate; scan lines, formed on the base substrate; data lines, formed on the base substrate and intersecting with the scan lines; and at least one pixel unit, defined by intersection of the scan lines and the data lines, each pixel unit including a pixel electrode. The display panel further includes a shield electrode, disposed between the scan line and the pixel electrode adjacent to the scan line, and being insulated from the scan line.