Tiled Display Device Driver Spacing and Panel Overlap
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Solution Overview
Problem
Tiled display devices face a challenge in maintaining display quality due to visible seam-lines when display panels with non-display areas are bonded together, which affects the overall appearance and user experience.
Innovation Solution
The solution involves designing a tiled display device where the drivers are spaced apart from the bonding areas in a plan view, and the display panels are arranged such that they overlap each other, specifically with the second lower structure overlapping the first upper structure, thereby minimizing the visibility of seam-lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If display panels with non-display areas are bonded together to form a tiled display device, then a large screen can be implemented, but visible seam-lines appear at the bonding area which deteriorates display quality
Solution Approach 1:
The patent applies dimensionality change by stacking display panels in the vertical direction (z-axis) rather than only arranging them horizontally. The lower structure of one panel overlaps with the upper structure of another panel in the bonding area, creating a three-dimensional arrangement that hides seam-lines from the user's viewing angle while maintaining large screen area.
Solution Approach 2:
The patent introduces an overlapping structure as an intermediary element between adjacent display panels. The overlapping region acts as a mediator that conceals the bonding area and seam-lines, preventing them from being visible to users while still allowing the panels to be bonded together to form a large screen.
2Device complexity
If drivers are placed close to bonding areas to reduce device complexity, then device complexity is reduced, but seam-lines become more visible in the bonding area
Solution Approach 1:
The patent resolves this contradiction by utilizing the vertical dimension for driver placement. Drivers are positioned in the lower structure of panels, and through the overlapping arrangement in the bonding area, the drivers are spaced apart from the bonding area in plan view. This three-dimensional positioning reduces seam-line visibility while maintaining reasonable device complexity.
3Device complexity
If display panels are arranged in a planar configuration, then device complexity is reduced, but seam-lines are visible and display quality deteriorates
Solution Approach 1:
The patent transitions from a two-dimensional planar arrangement to a three-dimensional stacked configuration. Display panels are arranged with vertical offset, where the lower structure of one panel overlaps with the upper structure of another panel. This spatial reconfiguration in the vertical dimension effectively hides seam-lines while maintaining manageable device complexity.
Solution Approach 2:
The patent employs asymmetric arrangement of display panels in the vertical direction. The panels are not aligned in a single plane but are positioned at different heights, creating an asymmetric configuration that conceals the bonding areas and seam-lines from the user's perspective.
Data Source
AI summary
A tiled display device includes a first display panel including a first lower structure including a first driver, and a first upper structure on the first lower structure, and a second display panel including a second lower structure that includes a second driver and that is adjacent to the first lower structure in a bonding area, and a second upper structure that is on the second lower structure and that is adjacent to the first upper structure, wherein the second lower structure at least partially overlaps the first upper structure, and wherein the first driver and the second driver are spaced apart from the bonding area in a plan view.