Display Module Connector Coating for Electrostatic Damage Prevention
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Solution Overview
Problem
Existing display devices suffer from electrostatic damage and connector damage due to improper plugging and unplugging of connectors with exposed metallic pins, leading to poor product yield.
Innovation Solution
A display module design featuring a connector with a first connection board having grooves and pins coated with an insulating layer, ensuring one-to-one correspondence with second pins for stable electrical connection while preventing electrostatic breakdown.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If metallic conductive pins are exposed in connectors for convenient electrical connection, then electrical connection convenience is improved, but electrostatic damage risk increases
Solution Approach 1:
An insulating layer is introduced as an intermediary substance coating the metallic conductive pins. This insulating layer allows electrical connection to occur through it while preventing direct exposure of the metallic pins, thereby mediating between the need for convenient electrical connection and the risk of electrostatic damage.
Solution Approach 2:
The electrical properties of the pin surface are changed by coating with an insulating material. This changes the surface characteristics from conductive to insulating, preventing electrostatic discharge while still allowing electrical connection through the modified surface.
2Device complexity
If metallic pins are exposed without protection, then connector structure simplicity is improved, but connector damage from improper operation increases
Solution Approach 1:
The connector pin structure is transformed from pure metallic material to a composite structure with an insulating coating layer on the metallic core. This composite structure combines the electrical conductivity of metal with the protective properties of the insulating material, preventing damage from improper operation.
3Object-affected harmful factors
If insulating layer is coated on pins for electrostatic protection, then electrostatic damage prevention is improved, but manufacturing process complexity increases
Solution Approach 1:
The manufacturing process utilizes parameter changes by applying surface coating treatment to the metallic pins. This process modification adds the insulating layer during or after connector fabrication, achieving electrostatic protection through a standard manufacturing technique.
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
Prevents electrostatic damage to the display panel and improves connector stability, enhancing product yield and reliability during plugging and unplugging operations.
Implementation Method 1
a portion of at least one of the plurality of first pin is coated with a first insulating layer
Data Source
AI summary
A display module and a display device are provided. The display module includes a display panel, a flexible circuit board, and a printed circuit board. The display panel includes a bonding area. The flexible circuit board and the printed circuit board are electrically bonded and connected to the display panel in the bonding area, and are connected by a connector. The connector includes a first connection board and a second connection board. A side of the first connection board includes a groove including first pins. A side of the second connection board facing the first connection board includes second pins. The first pins and the second pins have a one-to-one correspondence. The second pins are plugged into the grooves, and are in contact with and electrically connected to the first pins; and a portion of at least one of the first pins is coated with a first insulating layer.