Display Panel ESD Discharge Layout for Residual MPS Lines
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Solution Overview
Problem
Static electricity induced by Multi-Pattern Search (MPS) lines remaining on the display panel after the cutting process causes voltage distortion and temporary staining on the screen, leading to panel defects.
Innovation Solution
A display panel design that includes a static electricity discharge part with an MPS area, ESD area, and discharge lines connecting MPS lines to ESD circuits, allowing static electricity to flow from non-display areas to ESD circuits, preventing voltage distortion and panel defects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If MPS lines are removed after cutting process, then panel quality is improved, but manufacturing complexity increases
Solution Approach 1:
The patent extracts and removes the MPS lines from the panel after the cutting process through chemical etching or plasma treatment. This extraction eliminates the source of static electricity without requiring complete redesign of the manufacturing process, thus improving panel quality while controlling complexity
Solution Approach 2:
The patent applies preliminary protective measures by designing the MPS lines with specific materials and structures that facilitate easy removal. The MPS lines are pre-configured with etchable materials or plasma-reactive coatings that enable straightforward removal after cutting, preventing static electricity issues before they affect panel quality
2Ease of manufacture
If MPS lines remain on panel after cutting, then manufacturing process is simplified, but voltage distortion and panel defects occur
Solution Approach 1:
The patent converts the harmful static electricity effect of remaining MPS lines into a beneficial process feature. By designing MPS lines with controlled residual properties, the remaining lines actually serve as static electricity dissipation paths that protect the panel during manufacturing, turning a potential defect source into a protective mechanism
Solution Approach 2:
The patent introduces an intermediary substance or treatment layer between the MPS lines and the panel that prevents direct static electricity transfer. This intermediary layer, such as a conductive coating or moisture barrier, allows the MPS lines to remain for manufacturing simplicity while blocking their harmful electrostatic effects from reaching the panel
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
Prevents static electricity-induced voltage distortion and panel defects by effectively discharging static electricity through the ESD circuits, improving panel quality without the need for conductive tapes.
Implementation Method 1
an ESD area in which at least one ESD (Electrostatic Discharge) circuit is disposed, wherein the ESD circuit discharges static electricity generated in the display area and the non-display area
Data Source
AI summary
The present disclosure provides a display panel and a display device including the same. In the display panel, panel defects caused by static electricity induced due to an MPS line remaining on the panel after a cutting process in a cell array process of a display device is removed, the remaining MPS line is electrically connected to an ESD circuit through a discharge line, thus the static electricity induced by the MPS line remaining in the panel flows to the ESD circuit through the discharge line, thereby suppressing the panel defects caused by the MPS line.