Foldable Display Panel Roll-Up Mechanism for Durability
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Solution Overview
Problem
Current portable display devices lack the ability to be foldable and durable, making them susceptible to damage from accidental drops and not easily adaptable for various usage states.
Innovation Solution
A foldable display device design incorporating a display panel, fixing portions, and a roll-up mechanism that allows the panel to be folded and unfolded, enabling selection between different display states, including a tri-folded state, with the option to reduce power consumption by hiding non-essential display regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the display device is made rigid for durability, then strength is improved, but adaptability deteriorates
Solution Approach 1:
The display device employs flexible substrates and thin-film structures throughout its construction, including flexible circuit boards, thin-film transistors, and flexible sealing structures. This enables the rigid display components to be integrated into a flexible form factor that can be folded without breaking, resolving the contradiction between strength and adaptability.
Solution Approach 2:
The patent utilizes composite material structures combining flexible polymers with protective coatings and reinforcement layers. The flexible substrate incorporates multiple functional layers including protective films, adhesive layers, and structural support elements that maintain durability while enabling foldability.
2Adaptability or versatility
If the display device is made foldable, then adaptability is improved, but reliability deteriorates
Solution Approach 1:
The patent incorporates protective flexible sealing structures and reinforcement layers at the fold lines and connection points before any folding occurs. These pre-positioned protective elements cushion and distribute stress during folding operations, preventing damage to internal components and maintaining reliability through repeated flexing cycles.
3Area of moving object
If the display panel is always unfolded for full display, then area is improved, but power consumption worsens
Solution Approach 1:
The display device dynamically changes its configuration between unfolded and folded states based on usage requirements. The flexible display panel can be partially or fully folded to reduce the active display area when full-screen display is not needed, thereby reducing power consumption while maintaining the capability for full-area display when required.
Data Source
AI summary
A display device includes a display panel, a member, a first fixing portion, a second fixing portion, and a roll-up portion. The display device has a function that enables selection between a first state in which an image is displayed with the display panel not folded and a second state in which an image is displayed with the display panel folded. The display panel is fixed to the first fixing portion and the second fixing portion. One end of the member is fixed to the first fixing portion. The other end of the member is connected to the roll-up portion. The roll-up portion has a function that enables rolling up of the member from the other end of the member. The display panel is folded by rolling up the member. The display panel is unfolded by pulling out the rolled-up member from the roll-up portion.