Tiled Display Connection Layout to Hide Panel Boundaries
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Solution Overview
Problem
Large-sized display devices face increased defective rates of light emitting elements due to the higher number of pixels, leading to decreased productivity and reliability. Additionally, tiled display devices suffer from a sense of disconnection between adjacent display units, reducing image immersion.
Innovation Solution
A tiled display device design where adjacent display units have their connection lines staggered with respect to each other, minimizing electrical interference and preventing the visual recognition of boundary portions between units. This design includes a substrate with a recess for the connection lines and a protection member to cover the side surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple display devices are connected to form a large-sized display, then the display area is increased, but the sense of disconnection between adjacent display units increases and image immersion deteriorates
Solution Approach 1:
The connection lines of adjacent display devices are arranged in a staggered pattern rather than aligned symmetrically. Specifically, connection lines in odd rows of one display device are positioned to overlap with even rows of adjacent display devices, creating an asymmetric arrangement that prevents visual recognition of boundaries while maintaining electrical connectivity
Solution Approach 2:
The connection lines extend into the non-display area (bezel region) of adjacent display devices, utilizing the spatial dimension beyond the visible display area. This allows connection lines to be positioned where they do not interfere with the visual display area, thereby eliminating the sense of disconnection while maintaining functional connectivity
2Reliability
If connection lines are arranged in adjacent display devices, then electrical connectivity is achieved, but electrical interference between connection lines increases
Solution Approach 1:
Connection lines of adjacent display devices are arranged in a staggered pattern where odd rows of one device align with even rows of adjacent devices. This asymmetric arrangement increases the spatial distance between corresponding connection lines, thereby reducing capacitive coupling and electrical interference while maintaining necessary electrical connectivity
Solution Approach 2:
The non-display area (bezel region) serves as an intermediary space that physically separates connection lines of adjacent display devices. By routing connection lines through this intermediate region and staggering their positions, the patent reduces direct proximity between conductors, minimizing electrical interference while preserving signal transmission
Data Source
AI summary
A display device includes display devices each including a display area and a non-display area adjacent to the display area, the display area of each of the display devices including a pixel, and a substrate on which each of the display devices is disposed. Each of the display devices includes a thin film transistor layer disposed on the substrate and including a thin film transistor, and a connection line electrically connected to the thin film transistor and disposed in the non-display area on the substrate. Connection lines of display devices adjacent to each other among the plurality of display devices are disposed staggered with respect to each other.