Multi-Screen Display Substrate Bonding for Narrow Bezel Edges
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Solution Overview
Problem
Existing light emitting diode display devices have a large bezel area due to pad parts and instrument coverage, leading to increased seam visibility between connected displays, reducing viewing immersion and productivity, especially in large-size multi-screen setups.
Innovation Solution
A display device design featuring a minimized bezel area through a substrate bonding system with side data and gate connection members, where the line substrate is bonded to the display substrate with data and gate routing lines, and subpixels are arranged to reduce the bezel width, allowing seamless image display across multiple screens.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a related art light emitting diode display device is manufactured with pad parts and instrument coverage, then the display device can be assembled and protected, but the bezel area increases
Solution Approach 1:
The patent extracts the harmful elements (pad parts and instruments) from the display device structure by implementing a seamless edge design where the light emitting device directly contacts the substrate without additional covering components, thereby eliminating the bezel area while maintaining assembly and protection through the substrate bonding structure
Solution Approach 2:
The patent moves the connection and protection functions from the planar dimension (pad parts on the surface) to the vertical dimension (substrate bonding and edge sealing), allowing the display device to achieve assembly and protection without increasing the horizontal bezel area
2Area of stationary object
If the display device size is increased to reduce seam visibility, then viewing immersion improves, but the number of pixels increases causing higher transfer error rate
Solution Approach 1:
The patent segments the display device into modular units with standardized pixel arrangements, allowing large display areas to be constructed from multiple smaller modules while maintaining consistent transfer precision across each module, thereby reducing the cumulative transfer error rate
Solution Approach 2:
The patent changes the manufacturing parameters by optimizing the substrate bonding process and pixel transfer conditions for large-area substrates, adjusting temperature, pressure, and alignment parameters to maintain high manufacturing precision even as display area increases
3Area of stationary object
If multiple light emitting diode display devices are connected to form multi-screen devices, then large-size screen capability is achieved, but boundary portions create seam visibility reducing viewing immersion
Solution Approach 1:
The patent merges multiple display devices into a unified visual system by eliminating boundary portions through seamless edge design, where adjacent displays are positioned so close together that the substrate bonding and light emitting device edges create no visible gaps or seams, achieving visual continuity across the entire multi-screen assembly
Data Source
AI summary
Disclosed are a display device, a multi-screen display device using the same, which include a minimized bezel area and a method for manufacturing the display device. The display device including a display substrate including a plurality of subpixels respectively provided in a plurality of pixel areas defined by a plurality of data lines and a plurality of gate lines, a line substrate bonded to the display substrate by using a substrate bonding member and including a plurality of data routing lines, and a side data connection member provided on one side of each of the display substrate and the line substrate to connect the plurality of data lines to the plurality of gate lines in a one-to-one relationship.