Rollable Screen Reorientation for Multi-Direction Content Viewing
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Solution Overview
Problem
Conventional display devices with rollable displays can only output content in a single direction, limiting user flexibility and adaptability to different viewing scenarios.
Innovation Solution
A display device with a housing, a display that can be withdrawn or retracted using a roller, and a control unit that controls the screen to face multiple directions based on user detection and distance, adjusting content output and interface size accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a rollable display is used to achieve a compact structure, then the device can be deformed and rolled, but the display can only output content in a single direction
Solution Approach 1:
The display device employs a dynamic roller control mechanism that can rotate the rollable display in multiple directions (first direction and second direction). The roller is configured to guide the display to be rolled or unrolled in different directions, enabling the screen to face multiple directions and adapt to various viewing scenarios, thus resolving the contradiction between adaptability and device complexity.
Solution Approach 2:
The roller mechanism is designed to perform multiple functions: it can guide the display to face a first direction, a second direction, or be completely rolled into the housing. This multi-functional design allows a single component to achieve multiple display orientations, improving adaptability without proportionally increasing device complexity.
2Ease of operation
If the display is fixed in one position, then the structure is simple, but the user cannot view content from different positions or directions
Solution Approach 1:
The system transitions from a fixed display structure to a dynamic one where the roller can rotate to position the display in different orientations. The control unit dynamically adjusts the roller position based on detected user location, enabling users to view content from different positions and directions while maintaining a relatively simple overall structure.
Solution Approach 2:
The control unit automatically detects the user's position and autonomously controls the roller to orient the display towards the user. This self-service mechanism eliminates the need for manual adjustment by the user, improving ease of operation while the automated control reduces the complexity of manual adjustment mechanisms.
3Area of stationary object
If the display is always fully extended, then content viewing is maximized, but the device loses compactness and portability
Solution Approach 1:
The display area is dynamically adjusted through the roller mechanism, which can extend the display to maximum size for optimal viewing or completely roll it into the housing for compact storage. The control unit dynamically determines the appropriate display extension based on usage scenarios, achieving both maximum display area when needed and compactness when portability is required.
Solution Approach 2:
The rollable display can be completely rolled into the housing, creating a nested configuration where the display is stored within the device body. This nesting capability allows the device to transition from a fully extended state with maximum display area to a compact state suitable for portability, resolving the contradiction between display size and compactness.
Data Source
AI summary
A display device according to an embodiment of the present disclosure may comprise: a roller accommodated in the housing; a display configured to be withdrawn from or retracted into the housing by operating the roller; and a control unit configured to control the roller such that a screen of the display is formed to face at least one of a first direction and a second direction.