Multi-Screen Display Device With Overlapping Substrates
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Solution Overview
Problem
The challenge is to minimize the non-display area between adjacent display panels in multi-screen display devices, which currently results in a noticeable boundary area that disrupts the seamless viewing experience.
Innovation Solution
The solution involves designing a display device with first and second display panels that overlap partially, where the substrates and display portions are engaged in a specific manner, with an adhesive layer and flexible substrates, to minimize the non-display area and create a seamless image display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If display panels are arranged adjacent to each other with substrates engaged, then structural stability is improved, but non-display area and visible boundaries increase
Solution Approach 1:
The patent transitions from a traditional side-by-side panel arrangement to a three-dimensional overlapping configuration where panels are stacked vertically with partial overlap. This dimensional change allows the display areas to extend into the third dimension, effectively reducing the horizontal non-display area while maintaining structural integrity through the overlapping substrate engagement.
Solution Approach 2:
The patent implements a nested structure where the display portion of one panel is positioned within the overlapping region of the adjacent panel. This nesting approach allows the display areas to interlock vertically, minimizing the visible boundary area while maintaining structural stability through the engaged substrates and adhesive layers.
2Shape
If display panels are overlapped to reduce non-display area, then visual continuity is improved, but manufacturing complexity increases
Solution Approach 1:
The patent divides the display system into modular panel units with standardized overlapping interfaces. Each panel is manufactured as a discrete module with predefined engagement features, allowing for simplified individual manufacturing while achieving complex visual continuity when assembled. The segmentation enables standardized adhesive application and alignment processes.
Solution Approach 2:
The patent introduces adhesive layers as intermediary elements between the overlapping substrates and display portions. These adhesive intermediaries simplify the manufacturing process by providing a standardized bonding interface that accommodates minor alignment variations and ensures consistent visual continuity without requiring precision mechanical interlocking.
3Object-generated harmful factors
If substrates and display portions are engaged in overlapping configuration, then boundary visibility is reduced, but alignment precision requirements increase
Solution Approach 1:
The patent designs the overlapping engagement structure to serve multiple functions simultaneously: the adhesive layers provide both bonding and alignment tolerance compensation, while the overlapping geometry itself acts as a mechanical guide for alignment. This multi-functionality reduces the need for separate alignment features and lowers overall precision requirements.
Solution Approach 2:
The patent optimizes the overlap dimensions and adhesive layer thickness parameters to create a self-aligning structure. By carefully selecting these parameters, the design ensures that minor misalignments during manufacturing do not result in visible boundaries, as the overlapping geometry and adhesive compliance absorb the variations.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach effectively reduces the visible boundary area between display panels, enhancing user immersion by providing a more natural and uninterrupted visual experience with improved visual information display.
Implementation Method 1
the display device may further include an adhesive layer on the first surface of the substrate of the display panel in the overlapping portion. The display portion of the second display panel may be on the adhesive layer.
Data Source
AI summary
A display device includes: first and second display panels adjacent to each other along one direction, wherein: each of the first and second display panels includes a substrate, and a display portion on the substrate and includes a plurality of pixels including a pixel circuit layer on the substrate, at least one transistor, a display element layer on the pixel circuit layer, and at least one light emitting element emitting light; the substrate of the first display panel and the substrate of the second display panel are engaged with each other in a plan view and a cross-sectional view; the display portion of the first display panel and the display portion of the second display panel are engaged with each other in a plan view and a cross-sectional view; and a boundary between the display portion of the first display panel and the display portion of the second display panel.