Display Panel ESD Layout for Irregular Border Space
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Solution Overview
Problem
Traditional display screens with irregular shapes face challenges in arranging electrostatic discharge units due to limited space in the border region, which is crucial for protecting the display circuit from static electricity.
Innovation Solution
The display panel design includes a first signal line extending from the display region to an electrostatic discharge region, with electrostatic discharge units arranged in a specific direction, allowing charges to move towards a conductor, and utilizing sub electrostatic discharge units that are partially overlapped in one direction and staggered in another, optimizing space utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional layout of electrostatic discharge unit is used, then electrostatic discharge protection is achieved, but available space in irregular display border is insufficient
Solution Approach 1:
The patent applies dimensionality change by arranging electrostatic discharge units in a staggered configuration across multiple directions (first direction along signal line, second direction perpendicular to first direction). This multi-directional arrangement allows the units to utilize three-dimensional space more effectively, reducing the two-dimensional footprint in the border region while maintaining protection functionality.
Solution Approach 2:
The patent segments the electrostatic discharge units into multiple smaller units arranged in a staggered pattern. Instead of using a single large electrostatic discharge unit, multiple smaller units are distributed across the border region, each handling a portion of the electrostatic discharge function. This segmentation reduces the space requirement for each individual unit while collectively providing comprehensive protection.
2Reliability
If multiple electrostatic discharge units are arranged to cover all signal lines, then electrostatic discharge coverage is improved, but space occupation in border region increases
Solution Approach 1:
The patent merges multiple electrostatic discharge units into a coordinated staggered arrangement where units share common structures (such as conductors and insulation layers). This merging approach allows adjacent units to share materials and structures, reducing the total space occupation while maintaining comprehensive coverage across all signal lines.
Solution Approach 2:
The staggered arrangement extends the coverage of electrostatic discharge units into the perpendicular direction (second direction), allowing units to serve multiple signal lines through their spatial arrangement. This dimensional extension improves coverage efficiency without proportionally increasing the border region space occupation.
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 design effectively protects the display circuit by efficiently discharging static electricity while minimizing space requirements, suitable for high-resolution irregular displays.
Implementation Method 1
the electrostatic discharge circuit is electrically connected to the first signal line and the first conductor, and is configured to allow charges on the first signal line to move towards the first conductor
Data Source
AI summary
A display panel and a display device are provided, the first signal line extends from the display region to the electrostatic discharge region in a first direction, and provides a first display signal to the sub-pixels; the electrostatic discharge units are arranged in the first direction, each electrostatic discharge unit includes a sub electrostatic discharge unit, each sub electrostatic discharge unit includes an electrostatic discharge circuit and a first conductor, the electrostatic discharge circuit is connected to the first signal line and the first conductor, and charges on the first signal line move towards the first conductor; the electrostatic discharge units include two adjacent electrostatic discharge units in a second direction perpendicular to the first direction, orthographic projections of the two adjacent electrostatic discharge units on a plane parallel to the first direction are not overlapped, and on a plane parallel to the second direction are overlapped.