Resin Layer Protects Peripheral Circuit Wires During LCD Panel Scribing
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Solution Overview
Problem
In liquid crystal display panels, the scribing process often results in damage to peripheral circuit wires due to collisions with the end material of the second substrate, leading to wire breaking, which existing methods fail to adequately prevent.
Innovation Solution
A resin layer is formed on the second substrate to straddle the scribe line, absorbing the impact and protecting the peripheral circuit wires during the scribing process, thereby reducing the risk of wire breaking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the end material of the second substrate is removed by scribing to expose peripheral circuit wires, then the peripheral circuit wires can be accessed and connected to external control circuits, but the corner of the end material collides against the peripheral circuit wires during scribing, causing wire breaking
Solution Approach 1:
A resin layer is formed on the second substrate before the scribing process to straddle the scribe line. This resin layer acts as a cushioning material that absorbs the impact when the corner of the end material collides with the peripheral circuit wires during scribing, thereby preventing wire breaking while still allowing the wires to be exposed and accessed after the process
2Strength
If a harder protective layer is used to prevent wire breaking during scribing, then wire protection is improved, but the impact stress is not sufficiently absorbed, still risking wire damage
Solution Approach 1:
The resin layer is specifically designed with softer material properties compared to the glass substrate. This parameter change in material hardness allows the resin layer to absorb impact stress through deformation rather than transmitting it to the peripheral circuit wires, effectively protecting the wires while reducing impact 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 resin layer effectively absorbs the impact, significantly reducing the likelihood of wire breaking and enhancing the reliability of the liquid crystal display panel by providing a softer material to cushion collisions.
Implementation Method 1
a resin layer having a predetermined width is formed on that end part of the second substrate on the side of facing the first substrate which is located on the side of the peripheral circuit wires of the first substrate
Data Source
AI summary
A liquid crystal display panel is provided and includes a first substrate and a second substrate disposed to face each other with a liquid crystal layer held therebetween. The first substrate has peripheral circuit wires formed in a peripheral area surrounding a display area, and the second substrate is disposed to face the first substrate so that the peripheral circuit wires of the first substrate are exposed. A resin layer having a predetermined width is formed on that end part of the second substrate on the side of facing the first substrate which is located on the side of the peripheral circuit wires of the first substrate.