Foldable-Screen Hinge Component Using Elastic Compression for Screen Flatness
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Solution Overview
Problem
The flexible screen in foldable-screen devices arches at the joint between the rotation mechanism and the primary shaft mechanism when the hinge component is in a flattened state, affecting the flatness of the screen and its display performance.
Innovation Solution
A hinge component design with a support member and an elastic component that generates a higher compression rate when rotated to a flattened state, driving the flexible screen to be flattened away from the primary shaft mechanism, ensuring flatness and improving display performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the hinge component rotates to a flattened state, then the flexible screen can be fully unfolded for display, but the flexible screen arches at the joint between the rotation mechanism and primary shaft mechanism
Solution Approach 1:
The elastic component is pre-configured to generate a counteracting force that opposes the arching tendency of the flexible screen. When the hinge component rotates to the flattened state, the elastic component's restoring force actively pushes against the primary shaft mechanism to prevent the screen from arching, thereby resolving the contradiction between full display area and screen flatness.
Solution Approach 2:
The patent changes the physical state of the elastic component by adjusting its compression rate. The compression rate is specifically designed to be higher when the rotation mechanism is in the flattened state, which increases the elastic force generated. This parameter change allows the system to dynamically adapt the counteracting force to match the arching tendency at different rotation angles, effectively maintaining screen flatness while enabling full display.
2Shape
If the compression rate of the elastic component is increased when rotated to the flattened state, then the flexible screen flatness is improved, but the device structure becomes more complex
Solution Approach 1:
The elastic component serves multiple functions within the hinge mechanism: it acts as both a structural connector and an active force-generating element that counteracts screen arching. By integrating these functions into a single component, the patent avoids adding separate mechanisms, thereby improving screen flatness without significantly increasing device complexity.
Solution Approach 2:
The elastic component's compression rate is designed to be dynamic rather than static. It automatically adjusts its compression level based on the rotation angle of the hinge component, being more compressed in the flattened state and less compressed in the folded state. This dynamic behavior allows the system to provide appropriate counteracting force at each stage without requiring complex control mechanisms.
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 elastic component ensures the flexible screen remains flat, enhancing display quality and extending its lifespan by preventing arching at the joint, thus improving the overall performance of the foldable-screen device.
Implementation Method 1
an elastic component is disposed on the support member, a first end of the elastic component is used to press against the primary shaft mechanism when the rotation mechanism rotates to a flattened state
Data Source
AI summary
The present disclosure relates to foldable-screen devices and hinge components. An example hinge component includes an elastic component disposed on a support member. A first end of the elastic component presses against a primary shaft mechanism when a rotation mechanism rotates to a flattened state. A second end of the elastic component is connected to the support member when the rotation mechanism rotates to the flattened state. A compression rate of the elastic component when the rotation mechanism rotates to the flattened state is greater than a compression rate of the elastic component when the rotation mechanism rotates to a folded state.