Flexible Display Support Structure With Variable Stiffness Flattening
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Solution Overview
Problem
Existing flexible display devices require complex and expensive mechanisms, such as hinges and motors, to transition between curled and flattened states, increasing thickness and cost.
Innovation Solution
A flexible display device with a support module containing an adjustment member that changes stiffness between bent and flattened states, utilizing solid-liquid conversion regulators or gas regulators like airbags, to maintain flatness without external forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If additional hinge structures and lifting rods are added to enable curling and flattening, then the flexible display module can transition between states, but the device thickness and structural complexity increase
Solution Approach 1:
The patent applies parameter changes by utilizing the stiffness parameter of the adjustment member. The adjustment member has different stiffness values in different states: low stiffness when curled and high stiffness when flattened. This parameter change enables the member to adapt its mechanical properties to match the required state, eliminating the need for complex hinge structures and lifting rods while achieving reliable transition between bent and flattened states.
2Stability of the object's composition
If motor rotation and tension springs are used to maintain flatness, then the display module can be kept flat, but the device thickness and cost increase
Solution Approach 1:
The adjustment member provides self-service by automatically maintaining the flatness of the flexible display module through its inherent stiffness property. When the display module is in the flattened state, the adjustment member naturally resists deformation due to its high stiffness, eliminating the need for external motors and tension springs. This self-maintaining mechanism reduces device complexity and cost while ensuring stable flatness.
3Stability of the object's composition
If the adjustment member has high stiffness always, then the display module can maintain flatness, but the curling capability is restricted
Solution Approach 1:
The adjustment member implements dynamics by changing its stiffness property based on the operational state. The member transitions from a low-stiffness state when curled, allowing flexible bending, to a high-stiffness state when flattened, providing structural support. This dynamic adaptation of mechanical properties enables the member to fulfill both curling capability and flatness maintenance requirements without compromise.
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
Simplifies the structure and reduces costs by eliminating the need for complex rotating mechanisms and motors, while maintaining flexibility and flatness.
Implementation Method 1
the adjustment member is a solid-liquid conversion regulator or a gas regulator... when the flexible display module is in the bent state, the solid-liquid conversion material is liquid, and when the flexible display module is in the flattened state, the solid-liquid conversion material is solid
Implementation Method 2
the gas regulator is an airbag, when the flexible display module is in the bent state, the airbag is in a shrinking state, and when the flexible display module is in the flattened state, the airbag is in an expanded state
Data Source
AI summary
A flexible display device and an electronic equipment are provided in the present application. The flexible display device provided by the embodiment of the present application includes a flexible display module and a support module. The support module includes an adjustment member. The adjustment member has a first stiffness and a second stiffness. When the flexible display module is in a bent state, the adjustment member is in a first state and curled. When the flexible display module is in a flattened state, the adjustment member is in a second stiffness and flattened. Wherein, the first stiffness is less than the second stiffness.