Foldable Display Panel with Rotating Member for Variable Screen Size
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Solution Overview
Problem
The increasing demand for foldable display devices with adjustable screen sizes poses a challenge as existing technologies require separate display panels for small and large sizes, leading to increased manufacturing and maintenance costs.
Innovation Solution
A display device design featuring a single display panel that utilizes a folding member and a rotating member to change the display area configuration between a folded and unfolded state, allowing the same panel to function as both a small and large display by adjusting the position of its end portions and overlapping cases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two separate display panels are used for folded and unfolded states, then the display device can provide appropriate display sizes for both states, but manufacturing and maintenance costs increase
Solution Approach 1:
A single display panel is designed to perform multiple functions by changing its effective display area. The panel can operate in a first state showing a first image on a first area, and in a second state showing a second image on a second area, thereby replacing two separate panels with one universal panel that adapts to different usage scenarios.
Solution Approach 2:
The display panel's effective display area is made dynamic rather than fixed. By controlling different regions of the same panel at different times (first area in folded state, second area in unfolded state), the system dynamically adapts the display configuration to match the physical state of the device, eliminating the need for separate static panels.
2Adaptability or versatility
If two separate display panels are used for folded and unfolded states, then the display device can provide appropriate display sizes for both states, but maintenance costs increase
Solution Approach 1:
The single display panel serves as a universal component that replaces two separate panels. This reduces the total number of display components that need maintenance and repair, while still providing the functionality of both a small display for folded state and a large display for unfolded state.
Solution Approach 2:
Two separate display panels are merged into one unified display panel system. This consolidation reduces maintenance complexity by having fewer discrete components to service, while maintaining the functional equivalence of having separate optimized panels for each state.
3Ease of manufacture
If a single display panel is used for both folded and unfolded states, then manufacturing and maintenance costs are reduced, but the display area configuration must be dynamically adjusted
Solution Approach 1:
The system manages complexity through dynamic control of a single panel rather than static configuration of multiple panels. The display controller dynamically activates appropriate regions of the panel based on device state, which simplifies physical assembly while requiring sophisticated control logic to manage the dynamic reconfiguration.
Data Source
AI summary
A display device includes: a first case and a second case connected to each other by a folding member; and a display panel that is at least partially disposed on a first surface of the first case, wherein a second surface of the first case is opposite to the first surface of the first case, wherein a third surface of the second case faces the second surface of the first case when the display device is in a folded state, and the third surface of the second case is coplanar with the second surface of the first case when the display device is in an unfolded state, wherein a first end portion of the display panel is fixed to the second case, and a position of a second end portion of the display panel is configured to change on the first surface of the first case.