Rollable Display Support Structure With Rotating Rollers
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Solution Overview
Problem
Existing display devices face challenges in maximizing space utilization and microminiaturization, particularly in flexible and portable forms such as rollable displays.
Innovation Solution
A display device design featuring a shaft around which a display module is wound or unwound, with rollers and supporting parts that rotate to accommodate and extend the module, allowing it to be drawn out for use, and retractable rollers and supporting parts that enhance space utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the display module is wound around the shaft to be retracted into the housing, then the space utilization in the housing is increased, but the display module cannot be accessed or used
Solution Approach 1:
The supporting parts are designed to be movable between a retracted position (where they fit within the housing) and an extended position (where they support the display module outside the housing). This dynamic configuration allows the system to switch between compact storage and functional display states, resolving the contradiction between space utilization and accessibility.
2Ease of operation
If the supporting parts are extended to support the display module outside the housing, then the display module is accessible and usable, but the space utilization in the housing is reduced
Solution Approach 1:
The supporting structure is divided into multiple segments (first supporting part and second supporting part) that can independently move between retracted and extended positions. This segmentation allows the supporting parts to be extended only when needed for display module support, minimizing the impact on housing space utilization during non-use periods.
3Device complexity
If the rollers are made stationary to provide stable support, then the structure is simple, but the rollers cannot accommodate the shrinking and extending motion of the supporting parts
Solution Approach 1:
The rollers are designed to rotate in response to the shrinking and extending motions of the supporting parts. This dynamic rotation allows the rollers to accommodate the changing positions of the supporting parts while maintaining a relatively simple structural design, thus resolving the contradiction between structural simplicity and motion adaptability.
Data Source
AI summary
A display device includes: a shaft extending in a first direction; a display module wound around the shaft in a first state, and unwound from the shaft in a second direction crossing the first direction in a second state; a first roller and a second roller positioned on opposite sides of the shaft in the first direction, respectively; and a first supporting part and a second supporting part which shrink in the second direction in the first state, and extend in the second direction in the second state to support opposite sides of the display module, respectively, where the first roller and the second roller are in contact with the first supporting part and the second supporting part, respectively, and rotate according to the shrinking and extending of the first supporting part and the second supporting part in the second direction.