Display Connection Unit Layout for Stronger LCD Bonding
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Solution Overview
Problem
Existing display devices face challenges in reducing manufacturing costs and preventing the detachment of connection units that house driving integrated circuits, which are crucial for maintaining the integrity and functionality of liquid crystal display (LCD) devices.
Innovation Solution
The implementation of dummy lines in the connection units, which are not connected to any signal lines, helps in securely attaching the connection units to the substrate by enhancing the spreading of an adhesive film, thereby reducing manufacturing costs and preventing detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If dummy lines are added to the connection unit, then the attachment strength between connection unit and substrate is improved, but the device complexity increases
Solution Approach 1:
The dummy lines are non-functional conductive patterns that do not connect to signal lines or the driving integrated circuit. They serve solely as adhesive anchors to improve attachment strength. These dummy lines are simple, low-cost additions that provide mechanical reinforcement without requiring complex circuit design or additional functional components.
2Ease of manufacture
If the connection unit structure is simplified to reduce manufacturing costs, then the manufacturing cost is reduced, but the reliability of the connection unit decreases
Solution Approach 1:
The connection unit is segmented into functional components (signal transmission paths) and non-functional components (dummy lines for adhesive attachment). This segmentation allows the dummy lines to be added as separate, simple elements that improve reliability through enhanced adhesive bonding without complicating the core signal transmission function or increasing manufacturing complexity.
Data Source
AI summary
A display device includes: a substrate; a pixel connected to a gate line and a data line on the substrate; a connection unit connected to one of the gate line and the data line of the substrate; and a driving integrated circuit mounted on the connection unit. The connection unit includes an output lead line, an auxiliary lead line and a first pattern, and the output lead line, auxiliary lead line and first pattern are sequentially disposed along a first direction on an output portion of the connection unit, an end portion of the first pattern is disposed on a first side of the connection unit, at least a portion of the auxiliary lead line is disposed on an input portion of the connection unit.