Segmental Display Slide Mechanism with Roller Rail Grooves
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Solution Overview
Problem
Slideable display devices face damage and performance deterioration due to repeated bending and congestion issues between segmental members, leading to display defects and reduced sliding quality.
Innovation Solution
A display device design featuring a flat and bendable portion with segmental members and pattern parts that define etching grooves, allowing smooth sliding without additional rollers, by using a cover module with rail grooves to accommodate the pattern parts, reducing the gap between rail components and preventing congestion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If segmental members are used to slide the second display area, then the display device can be slid in and out, but the gap between segmental members and rail causes damage and display defects
Solution Approach 1:
The sliding structure is divided into segmental members that can move independently along the rail. Each segmental member is equipped with rollers that contact the rail, allowing the second display area to be slid in and out in segments. This segmentation enables the sliding function while reducing the gap between components through precise positioning of each segment.
Solution Approach 2:
Rollers are introduced as intermediary components between the segmental members and the rail. These rollers reduce friction and minimize the gap between the segmental members and the rail, preventing damage to the display device while maintaining smooth sliding operation. The rollers act as a mediator that transfers the sliding motion with reduced mechanical stress.
2Volume of moving object
If the second display area is accommodated inside the slideable display device, then the device can be compact, but repeated bending causes damage and performance deterioration
Solution Approach 1:
The second display area is designed with a curved shape that dynamically adapts during sliding operations. When the display device is in the retracted state, the second display area forms a curved configuration that accommodates it within the compact housing. During sliding, the curvature allows the display area to unfold smoothly without sharp bending, reducing mechanical stress and preventing damage.
Solution Approach 2:
The second display area utilizes a flexible structure that can bend and curve without causing damage. The flexible design allows the display area to be accommodated in a curved configuration when retracted, and to unfold smoothly during sliding operations. This flexibility prevents cracking and performance deterioration that would occur with rigid structures subjected to repeated bending.
3Ease of operation
If segmental members overlap each other during sliding, then the sliding mechanism can function, but damage occurs due to the large gap between members and rail
Solution Approach 1:
The direct contact mechanical system between segmental members and rail is replaced with a roller-based system. The rollers reduce friction and mechanical stress, allowing the segmental members to slide smoothly along the rail with minimal gap. This substitution of the mechanical interaction method prevents damage while maintaining the overlapping sliding mechanism.
Solution Approach 2:
The gap between segmental members and the rail is precisely controlled through parameter optimization. By adjusting the dimensions, positioning, and tolerance parameters of the segmental members and rail, the gap is minimized to prevent damage while maintaining the necessary space for the sliding mechanism to function. The rollers further reduce the effective gap through their contact geometry.
Data Source
AI summary
A display device includes a display module including a flat portion and a bendable portion extending from the flat portion in a first direction, segmental members disposed below the display module, overlapping the bendable portion, and extending in a second direction intersecting the first direction, pattern parts connected to at least one end of the segmental members, respectively and defining an etching groove, and a cover module defining a rail groove accommodating the pattern parts.