Curved Substrate Bending for Seamless Multi-Screen Display Bezels
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Solution Overview
Problem
Conventional multi-screen display apparatuses have a noticeable boundary area due to bezel seams, which can disrupt the sense of immersion when displaying a single image across multiple screens.
Innovation Solution
A display apparatus design featuring a first substrate with a curved bending portion and a smaller second substrate, allowing for minimal bezel width and seamless connection between adjacent screens, along with a fixing member for moisture absorption and stress management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a conventional display apparatus with a bezel area is used in a multi-screen configuration, then the structural integrity and protection of display components are maintained, but a noticeable boundary area appears between screens that disrupts the sense of immersion
Solution Approach 1:
The first substrate is bent into a curved shape to form a bending portion that extends into the non-active area. This curvature allows the substrate to wrap around the edges of the second substrate, minimizing the visible bezel area and creating a seamless appearance when multiple screens are connected, thereby eliminating boundary lines and improving the sense of immersion.
Solution Approach 2:
The substrate transitions from a two-dimensional flat structure to a three-dimensional curved structure by bending the first substrate. This dimensional change allows the substrate to extend vertically and wrap around the second substrate, reducing the horizontal bezel width and enabling adjacent screens to contact each other more closely, thus minimizing boundary areas.
2Length of stationary object
If the first substrate is bent into a curved shape to minimize bezel width, then the boundary area between screens is reduced, but stress and potential damage to display components may occur
Solution Approach 1:
The first substrate is bent to wrap around and surround the second substrate, creating a nested structure where the curved first substrate forms an outer layer protecting the inner second substrate. This nesting arrangement distributes mechanical stress and protects the display components from damage during bending while maintaining the minimized bezel width.
Solution Approach 2:
A fixing member is introduced between the first substrate and the second substrate to provide mechanical support and stress distribution. This fixing member acts as a cushioning element that prevents direct stress concentration on the display components during the bending process, thereby maintaining structural integrity while enabling the curved configuration.
3Reliability
If a fixing member is added between the first substrate and second substrate for stress management, then structural integrity is improved, but device complexity increases
Solution Approach 1:
The fixing member serves multiple functions simultaneously: it provides mechanical support to distribute stress, acts as a barrier to prevent moisture penetration between substrates, and maintains the spatial relationship between the first and second substrates. By combining multiple functions into a single component, the overall device complexity is minimized while achieving improved structural integrity.
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
The solution enables a nearly seamless display experience across multiple screens, enhancing immersion and expandability while maintaining a small bezel width and preventing damage to the display components during bending.
Implementation Method 1
a bending portion having a curved shape, a display portion disposed on the active area of the first substrate
Implementation Method 2
a fixing member prepared between the lateral side of the second substrate and the bending portion of the first substrate, and the fixing member includes a moisture absorbing material
Data Source
AI summary
Disclosed is a display apparatus having a minimum bezel area and a multi-screen display apparatus comprising the same, wherein the display apparatus may include a first substrate having an active area, a non-active area surrounding the active area, and a bending portion bent in a curved shape, a display portion disposed on the active area of the first substrate, a protection layer for covering the display portion, and a second substrate disposed on the protection layer and configured to have a smaller size than the active area.