Rollable Display Panel Conductive Pattern for Static Charge Dissipation
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Solution Overview
Problem
Existing display devices face challenges with static electricity accumulation, which can affect the operation and quality of the display panel, especially in rollable display panels where static electricity can flow to light emitting elements and transistors.
Innovation Solution
A display device with a rollable display panel incorporates a conductive pattern that includes transparent electrode materials or conductive polymers, disposed between pixels and overlapping holes in the non-display area. This conductive pattern is electrically connected to the housing through a connection member, effectively guiding static electricity away from the display panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a rollable display panel is used to improve flexibility and portability, then the device can be folded or rolled, but static electricity accumulates on the panel surface during manufacturing and usage
Solution Approach 1:
A conductive pattern is introduced as an intermediary layer between the display panel and the housing. This conductive pattern includes a first conductive layer on the display panel and a second conductive layer on the housing, with a conductive paste filling the gap between them to establish electrical connection. This intermediary structure enables static electricity dissipation without affecting the rollable flexibility of the display panel.
Solution Approach 2:
The harmful static electricity is extracted from the display panel system by providing a dedicated discharge path through the conductive pattern to the housing and ultimately to ground. The conductive structure separates the static electricity dissipation function from the display function, allowing the display panel to maintain its insulating properties while the housing provides the grounding path.
2Reliability
If the display panel is made insulating to protect internal components, then component protection is improved, but static electricity cannot be dissipated
Solution Approach 1:
The display panel maintains its insulating properties in the display area to protect internal components, while a conductive pattern is locally introduced in specific regions (first conductive layer on the panel, second conductive layer on the housing) to provide static electricity dissipation paths. The conductive paste is applied locally at the connection points between the conductive layers and the housing, creating localized conductivity without compromising the overall insulating structure of the display 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
The implementation of the conductive pattern in the display device effectively prevents static electricity from accumulating on the display panel, thereby improving the operational quality and reducing potential electrical interference.
Implementation Method 1
a conductive pattern disposed between the pixels in the display area and overlapping the at least one hole in a plan view, and the conductive pattern is electrically connected to the housing through the at least one hole
Data Source
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AI summary
A display device includes a display panel that includes a display area displaying an image and a non-display area including at least one hole; and a housing connected to the display panel, wherein the display panel includes pixels that are dispersed and disposed in the display area; and a conductive pattern disposed between the pixels in the display area and overlapping the at least one hole in a plan view, and the conductive pattern is electrically connected to the housing through the at least one hole.