Display Panel Electrostatic Protection Module for Connection Line Reliability
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Solution Overview
Problem
Current display panel structures have a large lower frame width due to long connection lines, which are susceptible to electrostatic discharge (ESD) breakdown, preventing normal signal input and display.
Innovation Solution
Incorporation of an electrostatic protection module with adjustment units connected to the connection lines to adjust current values when the voltage exceeds a preset threshold, preventing damage from ESD.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the connection line length is reduced to prevent ESD breakdown, then the reliability of connection lines is improved, but the device complexity increases due to the need for electrostatic protection module
Solution Approach 1:
The patent introduces an electrostatic protection module as an intermediary component between the flexible circuit board and the driving chip. This module includes adjustment units with variable resistors that act as mediators to regulate current flow through the connection lines, preventing ESD breakdown while maintaining a manageable device architecture through modular integration
2Area of moving object
If the lower frame width is reduced to increase screen ratio, then the area of display area is improved, but the reliability of connection lines deteriorates due to increased susceptibility to ESD
Solution Approach 1:
The patent applies preliminary anti-action by incorporating the electrostatic protection module before ESD can damage the connection lines. The adjustment units are pre-configured to detect voltage anomalies and actively regulate current flow in advance, preventing ESD breakdown before it occurs and enabling the use of shorter connection lines for reduced frame width
Data Source
AI summary
A display panel and a display device are provided. The display panel includes a driving chip and an electrostatic protection module including a plurality of adjustment units. The adjustment units correspond to at least a part of connection lines, and the electrostatic protection module is configured to adjust a current value on the connection lines when an absolute value of an actual voltage on the connection lines is greater than a preset voltage to prevent damage to the connection lines.