Display Panel Protective Layer Prevents Lead Wire Scratches
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Solution Overview
Problem
During the assembly of liquid crystal display panels, the cutting of the color filter substrate can lead to glass chippings that scratch the lead wires, causing poor contact and faults in the panel due to the exposure of the lead wire area.
Innovation Solution
A protective layer is applied to the boundary area of the array substrate corresponding to the cutting line of the color filter substrate, made of organic or inorganic insulating material, to prevent glass chippings from scratching the lead wires and ensuring proper contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the color filter substrate is cut along the boundary line to expose the lead wire area, then the lead wires can be connected to peripheral circuits, but glass chippings are produced that scratch the lead wires and cause poor contact
Solution Approach 1:
A protective layer is introduced as an intermediary between the glass chippings and the lead wires. This protective layer is formed on the array substrate at the lead wire area before cutting the color filter substrate, and it prevents the glass chippings from directly contacting and scratching the lead wires, thus maintaining good electrical contact while still allowing the lead wire area to be exposed for connection
Solution Approach 2:
The protective layer is formed in advance on the array substrate before the cutting process of the color filter substrate. This preliminary action ensures that when cutting occurs and glass chippings are generated, the lead wires are already protected, preventing damage before it can occur
Data Source
AI summary
The present invention provides a display panel and a display device. The display panel comprises an array substrate and a color filter substrate assembled in an aligned manner, the array substrate comprises a display area and a lead wire area provided on the periphery of at least one side of the display area, a first boundary line of the color filter substrate close to one side of the lead wire area has an orthographic projection on the array substrate and the orthographic projection falls into a boundary area of the lead wire area adjacent to the display area, a protective layer is provided on one side of the boundary area facing the color filter substrate, and the protective layer covers parts of the boundary area corresponding to the orthographic projection of the first boundary line on the array substrate and lead wires surrounding the parts.