Rollable Display Panel Metal Layer for Static Discharge
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Solution Overview
Problem
Rollable display devices experience static electricity generation due to friction between layers when rolled, leading to potential damage from electrostatic discharge.
Innovation Solution
Incorporating a conductive metal layer on the sides of the rollable panel, positioned between its portions when rolled, to act as a static electricity release path and reduce friction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a rollable display device is rolled, then the display can be compacted or extended, but static electricity is generated due to friction between layers
Solution Approach 1:
A metal layer is introduced as an intermediary component between the first and second portions of the rollable panel. This metal layer serves as a mediator that provides a conductive path for static electricity to discharge safely, preventing the harmful electrostatic discharge that would otherwise occur during the rolling operation.
Solution Approach 2:
The invention converts the harmful static electricity generated by friction during rolling into a beneficial discharge path. By positioning the conductive metal layer between the panel portions, the static electricity that accumulates during rolling is guided through the metal layer to a discharge electrode, transforming the harmful electrostatic discharge into a controlled and safe dissipation process.
2Duration of action of moving object
If layers are rubbed together during rolling, then the rollable function is achieved, but friction generates static electricity that can damage components
Solution Approach 1:
The metal layer is pre-positioned between the first and second portions of the rollable panel before the rolling operation occurs. This preliminary placement ensures that when the panel is rolled and layers rub together, the conductive path is already in place to capture and discharge the static electricity as it generates, preventing component damage before it can occur.
Solution Approach 2:
The metal layer acts as a protective intermediary between the friction-generated static electricity and the sensitive electronic components. It intercepts the static charge generated by layer friction and provides a safe discharge path through the discharge electrode, shielding the components from electrostatic damage.
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 conductive metal layer effectively reduces static electricity accumulation and friction between panel portions, minimizing the risk of electrostatic discharge and enhancing the device's reliability.
Implementation Method 1
The metal layer is disposed on one of the first side and the second side of the rollable panel and outside the rollable panel. In a rolled mode, at least a part of the metal layer is positioned between the first portion and the second portion of the rollable panel.
Data Source
AI summary
An electronic device includes a rollable panel and a metal layer. The rollable panel includes a first portion and a second portion. The rollable panel has a first side and a second side opposite to the first side. The rollable panel includes a substrate, a circuit layer disposed on the substrate and a cover layer disposed on the circuit layer. The metal layer is disposed on one of the first side and the second side of the rollable panel and outside the rollable panel. In a rolled mode, at least a part of the metal layer is positioned between the first portion and the second portion of the rollable panel.