Rear Conductive Lines for Static Electricity Discharge in Display Devices
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Solution Overview
Problem
Display devices are prone to damage from static electricity, which existing technologies have not effectively addressed, leading to potential malfunctions and reduced performance.
Innovation Solution
The implementation of conductive lines on the rear surface of the display device, including a first and second conductive layer, allows for the diffusion and discharge of static electricity, reducing damage by transferring it to a pad electrode and flexible film for safe discharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conductive lines are added to the rear surface of the display device, then static electricity discharge capability is improved, but device complexity increases
Solution Approach 1:
The conductive lines are segmented into multiple layers (first conductive layer and second conductive layer) with different functions. The first conductive layer provides primary static electricity discharge paths, while the second conductive layer provides additional discharge paths and electrical connection functions, allowing the system to handle static electricity effectively without requiring a single complex structure
Solution Approach 2:
The second conductive layer serves multiple functions: it provides static electricity discharge paths, establishes electrical connections between connection lines and pad electrodes, and works in conjunction with the first conductive layer to create a comprehensive protection system. This multi-functionality reduces the need for separate dedicated structures
2Reliability
If conductive lines are formed on the rear surface, then protection against static electricity damage is improved, but manufacturing complexity increases
Solution Approach 1:
The conductive lines are formed on the rear surface during the manufacturing process before final assembly, establishing static electricity discharge paths in advance. This preliminary action ensures that the protection mechanism is already in place during production, avoiding the need for additional post-manufacturing steps
Solution Approach 2:
The formation of conductive lines is merged with the existing manufacturing processes for creating connection lines and pad electrodes. By using the same manufacturing steps to create both functional electrical connections and protective static electricity discharge paths, the overall manufacturing complexity is minimized while achieving dual functionality
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 effectively minimizes damage from static electricity by diffusing and discharging it through the conductive lines, enhancing the reliability and performance of the display device.
Implementation Method 1
conductive lines below the second surface of the substrate, separated from the connection line, and crossing each other
Data Source
AI summary
A display device comprises a signal line on a first surface of a substrate, a lightemitting element on the signal line and comprising a first semiconductor layer, a second semiconductor layer, and an active layer between the first semiconductor layer and the second semiconductor layer, a connection line on a second surface of the substrate and electrically connected to the signal line, and conductive lines on the second surface of the substrate and separated from the connection line. The conductive lines comprise a first conductive layer and a second conductive layer covering the first conductive layer.