Sliding Mobile Terminal Frame for Smooth Flexible Display Extension
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Solution Overview
Problem
Mobile terminals with flexible displays experience height differences during extension, leading to discomfort and reduced usability due to potential hand entrapment and distortion during slide movements.
Innovation Solution
A mobile terminal design featuring frames that switch states through sliding, with a display unit that adjusts size and minimizes height differences by using a flexible display unit, accommodating portions, and linear guides to ensure stable slide movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the mobile terminal uses a flexible display to extend the screen size, then the display area is increased, but a height difference occurs at the outer surface causing discomfort and potential hand entrapment
Solution Approach 1:
The mobile terminal is divided into two separable frames: a first frame and a second frame that can slide relative to each other. The display unit is segmented into a fixed portion coupled to the first frame and a variable portion that can extend beyond the first frame when the second frame slides out, allowing the display area to increase while maintaining a smooth outer surface through the covering portion.
Solution Approach 2:
A covering portion is introduced as an intermediary element that covers the second rear surface of the first frame when the second frame is in the extended state. This covering portion has a thickness corresponding to the height difference between the first and second rear surfaces, thereby eliminating the height difference and preventing hand entrapment while allowing the display area to expand.
2Area of moving object
If the second frame slides out to extend the mobile terminal, then the screen size is increased, but distortion may occur during the slide movement
Solution Approach 1:
The second frame is designed to slide out only a partial distance from the first frame, with the extending distance being controlled to prevent excessive movement that could cause distortion. The linear guide ensures that the sliding movement remains within optimal parameters, allowing screen size expansion while maintaining structural stability and preventing distortion during the sliding process.
3Adaptability or versatility
If the second frame is added to enable extension, then the screen size becomes variable, but the device complexity increases
Solution Approach 1:
The second frame is nested within the first frame in a telescopic configuration, allowing the mobile terminal to extend and contract smoothly. The linear guide mechanism provides a simple yet effective means of controlling the relative movement between the two frames, enabling screen size variability without significantly increasing device complexity through straightforward mechanical nesting.
Data Source
Figure 1
Figure 2(a)~2(b)
Figure 3(a)~3(b)
AI summary
A mobile terminal including a first frame, and a second frame capable of switching a state thereof to an extended state by moving in a first direction from the first frame, and to a contracted state by sliding in a second direction opposite to the first direction, wherein the second frame includes a rear portion for at least partially covering a rear surface of the first frame, wherein the first frame includes a first rear surface exposed rearwardly in the contracted state, a second rear surface located frontwardly of the rear portion and not exposed to the outside in the contracted state, wherein at least a portion of the second rear surface is exposed rearwardly in the extended state, and a third rear surface covered by the rear portion in the contracted state and in the extended state.