Electrostatic Discharge Protection Patterns with Variable Spacing
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Solution Overview
Problem
Existing display devices face reduced electrostatic discharge protection efficiency due to deformation of electrostatic discharge protection patterns during the exposure process, which can lead to damage from static electricity.
Innovation Solution
The implementation of a display device with an electrostatic discharge protection unit comprising first and second signal lines and electrostatic discharge protection patterns, where the patterns form pairs separated by different distances, ensuring effective collection and discharge of static electricity even after exposure processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electrostatic discharge protection patterns are formed in the signal input area, then electrostatic discharge protection is provided, but the patterns are deformed by exposure process reducing protection efficiency
Solution Approach 1:
The electrostatic discharge protection patterns are divided into multiple pairs, with each pair consisting of a first pattern and a second pattern separated by different distances. This segmentation ensures that even if some patterns deform during exposure, others maintain proper spacing and functionality.
Solution Approach 2:
Different regions of the electrostatic discharge protection patterns have different spacing characteristics. Each pair of patterns has a specific distance relationship optimized for its location, creating local variations in pattern density and spacing to compensate for exposure-induced deformation in different areas of the substrate.
2Manufacturing precision
If patterns are separated by different distances, then exposure deformation is compensated, but device complexity increases
Solution Approach 1:
The electrostatic discharge protection patterns employ asymmetric spacing arrangements where adjacent pattern pairs have different distance relationships. This asymmetric design intentionally introduces controlled variations in spacing to counteract the symmetric deformation that occurs during exposure processing, thereby maintaining functional integrity despite manufacturing variations.
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 maintains high electrostatic discharge protection efficiency by allowing static electricity to be collected and discharged, preventing damage to display device elements, even when patterns are deformed by exposure processes.
Implementation Method 1
electrostatic discharge protection unit disposed between the display unit and the pad unit... allowing static electricity to be collected and discharged
Data Source
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AI summary
A display device having an electrostatic discharge protection unit disposed between a display unit and a pad unit. The electrostatic discharge protection unit comprises a first signal line configured to deliver data and a control signal from a pad unit to the display unit, a second signal line, a plurality of first electrostatic discharge protection patterns which are electrically connected to the first signal line; and a plurality of second electrostatic discharge protection patterns which are electrically connected to the second signal line. Respective ones of the first electrostatic discharge protection patterns and the second electrostatic discharge protection patterns together form a plurality of electrostatic discharge protection pattern pairs, and the first and second electrostatic discharge protection patterns in each of the electrostatic discharge protection pattern pairs are separated from each other by differing distances.