Display Pad Resistor for Static Electricity Dissipation
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Solution Overview
Problem
Display panels are susceptible to static electricity input through their pads, which can damage electrical elements and wires, particularly at the edges and corners where the curvature increases, making these areas more vulnerable to static electricity inflow.
Innovation Solution
Incorporating a resistor pattern with semiconductor material, bent in a zigzag form, between the pads and the edge of the substrate, which is connected to the pads and a wire, helps to prevent static electricity from entering the display panel by dispersing it through a resistor with higher resistance than the pads and wires.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If pads are disposed near the edge of the substrate for electrical connection, then ease of connection is improved, but susceptibility to static electricity damage increases
Solution Approach 1:
A resistor pattern is introduced as an intermediary element between the pad and the edge of the substrate. This resistor pattern has higher resistance than the pad or wire, and it is disposed between the pad and the edge to prevent static electricity from reaching sensitive electrical elements. The resistor acts as a mediator that allows normal electrical operations while blocking harmful static discharge paths.
Solution Approach 2:
The resistor pattern is disposed in advance between the pad and the edge of the substrate before static electricity can reach sensitive components. This preliminary protective structure is built into the display device during manufacturing, creating a pre-established protection path that activates automatically when static electricity occurs, preventing damage before it can happen to critical elements.
2Area of stationary object
If pads are disposed close to the edge for compact design, then device compactness is improved, but vulnerability to static electricity increases
Solution Approach 1:
The protection structure is applied locally only to specific pads that are disposed near the edge of the substrate and therefore vulnerable to static electricity. Not all pads require this protection - only those in high-risk positions. The resistor pattern is selectively disposed between these specific pads and the edge, providing targeted protection while maintaining overall device compactness and avoiding unnecessary additions to protected areas.
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 configuration effectively prevents static electricity from entering the display panel, reducing the risk of damage to electrical components and ensuring reliable operation by using the resistor to dissipate static charges effectively.
Implementation Method 1
a second end of the resistor is connected to a wire... the resistor includes the resistor pattern... helps to prevent static electricity from entering the display panel by dispersing it through a resistor with higher resistance than the pads and wires
Data Source
AI summary
A display device includes a substrate including a display area and a peripheral area disposed around the display area, a pad area disposed near an edge of the substrate, and a plurality of pads disposed in the pad area and arranged along the edge of the substrate. An end of a first pad, which is an outermost pad among the plurality of pads, is connected to a first end of a resistor. The first pad is disposed between the resistor and the edge of the substrate, and a second end of the resistor is connected to a wire.