Foldable Dual-Panel Display Structure With Sub-3 mm Screen Gap
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Solution Overview
Problem
Existing portable display devices require a strong shaft structure for folding and unfolding display panels while minimizing the non-display area between them, and there is a need for a structure that allows input units and optical members to be mounted reliably.
Innovation Solution
A portable display device with at least two panel housings and display panels that are joined to form a single screen, with a distance between the panels and input units less than 3 mm, and a structure that enables folding and unfolding, including a terminal for near field communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a strong shaft structure is used for folding and unfolding display panels, then the structural strength is improved, but the device complexity increases
Solution Approach 1:
The display device is divided into multiple panel housings (first panel housing and second panel housing) that can be folded and unfolded relative to each other. Each panel housing contains a display panel, and the segmentation allows the structure to achieve both strength through the shaft connection and reduced complexity by distributing functional elements across separate modules.
2Area of stationary object
If the distance between display panels is minimized, then the non-display area is reduced, but the manufacturing precision requirements increase
Solution Approach 1:
The display panels are disposed to be contiguous to each other with a minimal distance of less than 3 mm, effectively merging the visual display area into what appears to be a single large screen. This combining approach minimizes the non-display area while the panel housings provide structural support that maintains positioning precision.
3Adaptability or versatility
If input units and optical members are mounted on panel housings, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The panel housings serve multiple functions: they provide structural support for folding and unfolding, mount display panels, and serve as mounting surfaces for input units and optical members. This multi-functionality approach increases adaptability while avoiding the need for separate structural elements for each function.
4Volume of moving object
If the distance between input units is minimized, then the overall device size is reduced, but the ease of operation decreases
Solution Approach 1:
The panel housings can be folded and unfolded, creating a dynamic structure that allows the input units to be positioned at optimal distances for operation when the panels are unfolded. When folded, the device achieves compact size. This dynamic configuration resolves the contradiction between small size and ease of operation.
Data Source
AI summary
A portable display device is provided in which two display panels are joined to each other to form a single screen when two panel housings are unfolded from a folded state. The portable display device includes at least two panel housings and display panels that are mounted on the panel housings, respectively. When the panel housings are unfolded, the display panels are joined to each other to form a single screen. The distance between the display panels when the display panels are contiguous to each other is less than 3 mm and the distance between input units or between input sensors is less than 3 mm.