Overlapping Display Modules for Seamless Large-Area Screens
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Solution Overview
Problem
Existing display devices face challenges in minimizing the bezel area, especially when implementing large screens using liquid crystal or organic light emitting display devices, as they are limited by the need for sealants and encapsulation, leading to visible boundaries between adjacent panels in tiled configurations.
Innovation Solution
A display device design featuring a support substrate with link lines, flexible films, and display modules that overlap with connection members to connect signal lines, allowing for a zero-bezel configuration by eliminating visible boundaries and enabling flexible module arrangement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple display panels are disposed in a tile form to implement an extra-large screen, then the screen size is increased, but visible boundaries between adjacent panels are caused
Solution Approach 1:
A support substrate is introduced as an intermediary component positioned between and supporting multiple display panels. The support substrate provides a unified base structure that allows panels to be arranged in a tiled configuration while maintaining visual continuity, effectively mediating the connection between adjacent panels to minimize visible boundaries.
Solution Approach 2:
The display structure transitions from a single-plane panel arrangement to a multi-dimensional configuration where panels are positioned at different heights or angles relative to the support substrate. This dimensional change allows for seamless transitions between panels, reducing visible boundaries while maintaining large screen area.
2Reliability
If sealant is used to seal liquid crystals and bond substrates in liquid crystal display devices, then the display structure is sealed and functional, but the bezel area cannot be reduced further
Solution Approach 1:
The sealing function traditionally performed by sealant in liquid crystal displays is extracted and replaced by the support substrate structure. The support substrate provides mechanical bonding and sealing through its structural design rather than relying on sealant materials, thereby eliminating the need for additional bezel area to accommodate sealing components.
Solution Approach 2:
The chemical sealing method using sealant is replaced with a mechanical sealing approach where the support substrate provides structural bonding and sealing through its physical form and attachment mechanisms, eliminating the need for separate sealant applications that occupy bezel space.
3Reliability
If encapsulation is disposed to protect organic light emitting elements from moisture and oxygen, then the organic LED is protected, but the bezel area cannot be reduced further
Solution Approach 1:
The encapsulation function is merged with the support substrate structure. The support substrate serves dual purposes: providing mechanical support for the display panels and simultaneously providing encapsulation protection against moisture and oxygen. This integration eliminates the need for separate encapsulation layers that would increase bezel area.
Data Source
AI summary
A display device comprises a support substrate, a plurality of link lines disposed on the support substrate, a plurality of first flexible films disposed on one side of the support substrate and electrically connected to the plurality of link lines, a plurality of display modules disposed on or under the support substrate and including a plurality of pixels and a plurality of signal lines and a plurality of connection members disposed between the support substrate and the plurality of display modules and electrically connecting the plurality of link lines and the plurality of signal lines. Therefore, A display device with a large screen may be provided.