Display Panel Ground Wire for Static Discharge and Light Leakage
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Solution Overview
Problem
Display devices face challenges in effectively discharging static electricity, preventing light leakage, and maintaining aesthetics due to increased electrostatic sensitivity of circuit materials.
Innovation Solution
A display apparatus is designed with a display panel that includes a first substrate, a second substrate with an electrode layer, a ground wire connecting the substrates, and conductive silicon that electrically connects the electrode layer and the ground wire, enhancing static electricity discharge and preventing light leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If display devices use thinner and lighter flat display panels, then portability and screen size are improved, but electrostatic sensitivity of circuit materials increases
Solution Approach 1:
The patent introduces a ground wire as an intermediary component between the first substrate and second substrate to provide a dedicated electrostatic discharge path. This ground wire acts as a mediator that safely channels static electricity away from sensitive circuit materials, resolving the contradiction between device thinness and electrostatic protection.
Solution Approach 2:
The patent extracts the electrostatic discharge function from the main display structure by implementing a separate ground wire system. This dedicated ESD path is extracted as an independent component that handles electrostatic threats separately from the display functionality, allowing the display panel to remain thin while maintaining electrostatic protection.
2Volume of moving object
If display devices are made thinner, then volume is reduced, but light leakage prevention becomes more difficult
Solution Approach 1:
The patent addresses light leakage in thin devices by extending the ground wire from the first substrate through the second substrate to the decorative bezel, creating a three-dimensional electrostatic discharge path. This dimensional approach allows effective ESD protection and light leakage prevention without increasing the overall device volume.
Solution Approach 2:
The ground wire is nested within the multi-layer structure of the display panel, passing through substrates and connecting to the decorative bezel. This nested configuration allows the ESD protection system to be integrated within the thin display structure without adding external bulk.
3Reliability
If electrostatic discharge paths are added to protect circuit materials, then reliability is improved, but device complexity increases
Solution Approach 1:
The ground wire serves multiple functions: it provides electrostatic discharge protection, acts as an electrical connection between substrates, and integrates with the decorative bezel structure. This multi-functionality reduces device complexity by combining several roles into a single component rather than adding separate elements for each function.
Solution Approach 2:
The patent merges the electrostatic discharge function with the existing substrate and decorative bezel structures. The ground wire is integrated into the display panel assembly rather than being a separate external component, combining ESD protection with the structural and aesthetic elements already present in the device.
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
The solution effectively discharges static electricity, prevents light leakage, and improves the aesthetics of the display apparatus by ensuring strong coupling between the decorative bezel and the display panel.
Implementation Method 1
a conductive silicon that electrically connects the electrode layer and the ground wire
Implementation Method 2
a ground wire between the first substrate and the second substrate, the ground wire configured to connect to a ground
Data Source
AI summary
A display apparatus is provided and includes a display panel including a first border and a second border, and a decorative bezel that covers the first border. The display panel further includes: a first substrate, a second substrate including a first side, on which the first substrate is disposed, and a second side opposite to the first side, an electrode layer on the second side of the second substrate; a ground wire between the first substrate and the second substrate, the ground wire configured to connect to a ground; and a conductive silicon that is on the second border and electrically connects the electrode layer and the ground wire.