Multi-Display Panel Edge Structure for Bezel-Free Image Continuity
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Solution Overview
Problem
Multi-display apparatuses suffer from a sense of discontinuity due to bezel areas between adjacent display units, which detract from the viewer's experience by creating a disjointed image across the connected screen.
Innovation Solution
A display apparatus and multi-display apparatus design that eliminates bezels by using a dam pattern and trench pattern to isolate light emitting devices, allowing for seamless image display across multiple units without the need for a bezel area, thereby enhancing the viewer's experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a bezel area is provided around the display area to cover edge portions, then the display apparatus has a complete structure for protecting light emitting devices, but the bezel width increases and creates a sense of discontinuity in multi-display apparatuses
Solution Approach 1:
The patent divides the protection function into multiple components: dam patterns isolate individual light emitting devices, trench pattern portions provide additional isolation, and encapsulation layers offer comprehensive protection. This segmentation allows each component to contribute to protection while minimizing the overall bezel width required.
Solution Approach 2:
The patent extends protection into the vertical dimension by using encapsulation layers that wrap around light emitting devices, rather than relying solely on horizontal bezel extension. This multi-dimensional approach provides complete protection while reducing the horizontal footprint and bezel width.
2Reliability
If a bezel is provided to cover the edge portion of the display panel, then light emitting devices are protected, but the display area is reduced and user experience is degraded due to visible boundaries
Solution Approach 1:
The protection structure is segmented into dam patterns around individual devices, trench patterns for isolation, and encapsulation layers for comprehensive coverage. This allows protection to be provided at the device level rather than requiring a large peripheral bezel, thereby maximizing the display area.
Solution Approach 2:
The patent uses thin encapsulation layers and film-based protection structures that provide comprehensive protection with minimal thickness. These thin-film structures protect light emitting devices without significantly reducing the display area or creating visible boundaries.
3Reliability
If trench pattern portions are used to isolate light emitting devices, then device isolation and protection are improved, but manufacturing complexity increases
Solution Approach 1:
The patent combines multiple functions into integrated structures: the dam pattern serves both as an isolation barrier and as a support structure, while the encapsulation layer simultaneously provides mechanical protection and environmental isolation. This merging reduces the number of separate manufacturing steps despite the increased structural complexity.
Data Source
AI summary
A display apparatus includes a first substrate including a plurality of pixel areas provided in a display portion, a second substrate coupled to the first substrate, and a routing portion disposed on an outer surface of the first substrate and an outer surface of the second substrate. The first substrate includes a dam pattern disposed along an edge of the display portion, a light emitting device layer including a light emitting device disposed on the dam pattern and in the plurality of pixel areas, and a trench pattern portion disposed near the dam pattern. The light emitting device is isolated by the trench pattern portion.