Display Device Peripheral Line Bends for Sealing Containment
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Solution Overview
Problem
When using an inkjet technique to form a sealing film around a display device, droplets can flow outside and exceed a second bank due to bumps between peripheral lines, leading to potential sealing layer failures.
Innovation Solution
A display device design featuring a first bank and a second bank with intersecting peripheral lines that include bends or branches, which act as barriers to prevent droplets from flowing over the second bank, reducing the risk of sealing layer excess.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If an inkjet technique is used to form a sealing film, then the sealing material can be applied precisely to the substrate, but droplets may flow outside along bumps between peripheral lines of the frame area and exceed the predetermined position
Solution Approach 1:
The peripheral lines are divided into multiple segments with bends between the first and second banks. These segmented bends create multiple barrier points that intercept droplets, preventing them from flowing continuously across the frame area. The segmentation of the peripheral lines into bent sections rather than straight continuous lines is the key application of this principle.
Solution Approach 2:
The bends in the peripheral lines act as intermediary barrier structures between the first and second banks. These bends serve as intermediate containment elements that intercept and redirect droplets, preventing direct flow from the first bank area to beyond the second bank. The bends mediate the droplet flow path and contain it within acceptable boundaries.
2Device complexity
If peripheral lines are made straight and continuous, then the structure is simple, but droplets can flow easily along the bumps between peripheral lines
Solution Approach 1:
The peripheral lines incorporate bends (curved or angular deviations) rather than remaining straight. These curvature elements in the peripheral lines create physical barriers that interrupt droplet flow paths. The bends introduce geometric irregularities that prevent droplets from following a straight continuous path along the bumps between peripheral lines.
Data Source
AI summary
A display device includes: a display including a plurality of light-emitting devices; a first bank provided outside the display; a second bank provided outside the first bank; and a plurality of peripheral lines formed below, and intersecting with, the first bank and the second bank, wherein each of the peripheral lines includes a plurality of bends provided between the first bank and the second bank in plan view.