Electronic Panel Electrostatic Shield Pattern Design
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Solution Overview
Problem
Current display devices face challenges in effectively integrating electrostatic shielding to prevent damage from external electrostatic charges, which can interfere with the operation of sensing electrodes and lines, leading to potential electrical shorts and reduced reliability.
Innovation Solution
The implementation of an electrostatic shield pattern on the insulation layer, electrically connected to the sensing electrodes through guide contact holes, helps to divert and dissipate external electrostatic charges away from the sensing lines, thereby preventing damage and ensuring reliable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an electrostatic shield pattern is added to protect sensing lines from external electrostatic charges, then reliability is improved, but device complexity increases
Solution Approach 1:
The patent introduces an electrostatic shield pattern as an intermediary component between external electrostatic charges and the sensing lines. This shield pattern, connected to ground through contact holes in the insulation layer, acts as a mediator that intercepts and redirects electrostatic interference away from sensitive circuit elements, thereby protecting the sensing lines without requiring fundamental changes to the existing device architecture.
Solution Approach 2:
The electrostatic protection function is segmented into discrete components: the electrostatic shield pattern formed as separate conductive elements, contact holes created at specific locations to connect these shields to ground, and insulation layers that define the spatial relationships. This segmentation allows the protection mechanism to be integrated incrementally into the existing device structure without requiring complete redesign.
2Object-affected harmful factors
If contact holes are created in the insulation layer to connect electrostatic shield to ground, then electrostatic discharge capability is improved, but manufacturing precision requirements increase
Solution Approach 1:
The electrostatic shield pattern and contact hole locations are designed and positioned in advance during the device fabrication planning stage. The shield patterns are formed on the insulation layer at predetermined locations, and contact holes are subsequently created at pre-determined positions to connect these shields to ground. This preliminary positioning ensures proper alignment and electrical connectivity without requiring complex real-time adjustments during manufacturing.
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 solution enhances the reliability of the electronic panel by protecting the sensing lines from external electrostatic interference, ensuring consistent performance and extended lifespan.
Implementation Method 1
an electrostatic shield pattern disposed on the insulation layer on which the second lines are disposed, wherein the electrostatic shield pattern is electrically connected to one of the first lines through a guide contact hole defined in the insulation layer
Data Source
AI summary
An electronic panel includes: a plurality of sensing electrodes that overlap a sensing area; a line section that overlaps a peripheral area adjacent to the sensing area, wherein the line section includes a plurality of first lines and a plurality of second lines, wherein the plurality of first lines are respectively connected to first ends of the sensing electrodes, and the plurality of second lines are respectively connected to second ends of the sensing electrodes; an insulation layer disposed between the first lines and the second lines, wherein the insulation layer defines a plurality of contact holes through which the first lines are electrically connected to corresponding second lines; and an electrostatic shield pattern disposed on the insulation layer on which the second lines are disposed, wherein the electrostatic shield pattern is electrically connected to one of the first lines through a guide contact hole defined in the insulation layer.