Display Panel Signal Layout to Prevent Scan-Line Tip Discharge
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Static electricity in display panels can cause tip discharge, leading to electrical connections between scan lines and dummy signal lines, resulting in abnormal display effects such as dark lines, due to the overlap of these components in the thickness direction.
Innovation Solution
The arrangement of scan lines and dummy signal lines in the display panel, where the end of the scan line is positioned between the dummy signal line and the data line, avoiding overlap and increasing the distance between the scan line and the signal line, thereby reducing the likelihood of tip discharge and electrical connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If scan lines and dummy signal lines are arranged close together to maximize display area, then area utilization is improved, but static electricity causes tip discharge and abnormal display effects
Solution Approach 1:
The patent introduces a shielding signal line as an intermediary element positioned between the scan line and the dummy signal line. This shielding signal line acts as a mediator that blocks the electrostatic field interaction between the scan line and dummy signal line, preventing tip discharge while allowing the scan line to extend into the non-display area for area optimization.
Solution Approach 2:
The patent extracts the harmful electrostatic interaction by removing the direct proximity relationship between the scan line and dummy signal line. By positioning the shielding signal line in between, the harmful electrostatic field is effectively isolated and removed from the interaction path, preventing abnormal display effects.
2Adaptability or versatility
If scan lines extend into non-display area to increase displayable content, then functionality is improved, but overlap with dummy signal lines causes electrical connections and display abnormalities
Solution Approach 1:
The shielding signal line serves as a protective intermediary that enables the scan line to extend into the non-display area for enhanced functionality while blocking harmful electrostatic interactions with the dummy signal line, maintaining electrical stability.
Solution Approach 2:
The patent applies preliminary anti-action by pre-positioning the shielding signal line to counteract the potential harmful electrostatic interaction before tip discharge can occur. The shielding signal line is strategically placed to prevent the electrostatic field from developing into a harmful discharge, thereby maintaining system reliability.
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 enhances the display effect by preventing abnormal connections caused by static electricity, improving the overall performance and reliability of the display panel.
Implementation Method 1
static electricity in a display panel is likely to affect display effects... tip discharge, leading to electrical connections between scan lines and dummy signal lines
Data Source
AI summary
A display panel and a display device are provided. The display panel includes a display area and a non-display area surrounding the display area. The display panel includes a substrate, and scan lines and data lines disposed over the substrate. The data lines are disposed in the display area. The data lines extend along a first direction and are arranged along a second direction. The scan lines extend along the second direction and are arranged along the first direction. The display panel also includes at least one dummy signal line disposed in the non-display area. The dummy signal line is parallel to the data lines. The dummy signal line includes a first dummy signal line closest to an outer edge of the non-display area. Along the second direction, one end of at least one scan line is located between the first dummy signal line and the data lines.