Foldable Display Device with Dual Panel Hinge Mechanism
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Solution Overview
Problem
Existing foldable display devices face issues with thickness and durability when folded twice, as the display panel is exposed and prone to damage, leading to increased volume and decreased grip comfort.
Innovation Solution
A method involving a base panel plate with a display panel on its upper surface, a second panel plate with a flat surface hinged on one side and an inclined surface on the other, and a first panel plate with an inclined surface on one side and a flat surface on the other, allowing both panels to fold inwardly and unfold to a wider configuration, keeping the display panel internal and minimizing thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the display panel is attached to the outer peripheral surface of the foldable smartphone, then the foldable smartphone can be folded once with a thinner profile, but the display panel is exposed to the outside and is highly susceptible to damage
Solution Approach 1:
The patent applies nesting by placing the display panel inside the foldable smartphone structure rather than on the outer surface. When folded, the display panel is nested within the device body, protected by the housing structure, eliminating exposure to external impacts while maintaining a compact folded profile.
2Reliability
If the foldable smartphone is folded twice using the inside method, then the display panel is protected from damage, but the thickness becomes thicker and the volume increases
Solution Approach 1:
The patent segments the folding structure into multiple panel portions (first panel portion and second panel portion) that can be independently positioned. This segmentation allows the display panel to be protected during folding without requiring a double-fold configuration, thereby reducing the overall thickness and volume compared to traditional twice-folded designs.
3Reliability
If the display panel is attached to the inner peripheral surface of the foldable smartphone, then the display panel is protected from damage, but the foldable smartphone cannot be used in a folded state effectively
Solution Approach 1:
The patent implements a dynamic folding mechanism where the display panel and supporting structures can change their relative positions between folded and unfolded states. The first and second panel portions are configured to move relative to each other, allowing the device to transition between states while maintaining display panel protection in the folded state and usability in the unfolded state.
Data Source
AI summary
Provided is a method for folding a foldable display device, in which the foldable display device includes a base panel plate, wherein a second panel plate hinged to one side of the base panel plate is folded, and a first panel plate hinged to the other side of the base panel plate is folded, and the first and second panel plates are unfolded, so that portions of a display panel, which are repeatedly folded and unfolded, can be stably supported, the display panel can be prevented from being damaged, and a thickness of the foldable display device can be thinner than a foldable smartphone folded once so that a volume thereof can be minimized, thereby providing a display panel that becomes wider when the first and second panel plates are unfolded.