Sliding Flexible Display Structure to Prevent Tilting Deformation
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Solution Overview
Problem
Flexible displays in electronic devices face unintended deformation during conversion processes, such as expansion or reduction, which can lead to tilting and reduce the device's usability and battery capacity.
Innovation Solution
A tilting prevention structure is implemented using a rack gear coupled to a pinion gear, driven by a motor, with a bracket surrounding the motor mechanism and a rack gear case to guide the rack gear, preventing unintended tilting and deformation of the flexible display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a flexible display is expanded or reduced during conversion, then the display area is adjusted to meet different usage needs, but unintended deformation and tilting occur during the conversion process
Solution Approach 1:
The patent introduces a guide structure as an intermediary component between the flexible display and the housing. This guide structure includes a guide groove and a guide protrusion that work together to constrain the movement path of the flexible display during conversion, preventing unintended deformation while allowing the display area to be adjusted between expanded and reduced states
Solution Approach 2:
The guide structure creates equipotential constraints by providing a defined movement path through the guide groove and guide protrusion. This ensures that the flexible display moves along a predetermined trajectory during conversion, maintaining stable composition throughout the transformation process regardless of the display area configuration
2Quantity of substance
If the internal mounting space is increased to accommodate larger batteries, then the battery capacity and usage time are improved, but the device structure becomes more complex
Solution Approach 1:
The guide structure utilizes the vertical dimension by extending the guide groove and guide protrusion in the thickness direction of the housing. This three-dimensional configuration effectively manages the conversion mechanism while maximizing the horizontal mounting space available for battery placement, thereby increasing battery capacity without proportionally increasing overall structural complexity
Solution Approach 2:
The guide structure serves multiple functions simultaneously: it guides the flexible display during conversion, prevents deformation, and optimizes space utilization for battery placement. This multi-functionality reduces the need for separate components, thereby increasing battery capacity while limiting the increase in device complexity
3Stability of the object's composition
If a tilting prevention structure is added to prevent deformation, then the display stability is improved, but the device complexity increases
Solution Approach 1:
The guide structure is merged with the existing housing structure, where the guide groove is formed directly on the housing surface and the guide protrusion is integrated with the flexible display assembly. This integration approach provides tilting prevention and deformation control while minimizing the addition of separate components, thereby improving display stability with limited increase in device complexity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The structure effectively prevents deformation, enhances the internal mounting space, increasing battery capacity and usage time, while maintaining the display's functionality and portability.
Implementation Method 1
a rack gear coupled to the first housing, a pinion gear driven by engaging with the rack gear, and a motor coupled to the second housing and configured to rotate the pinion gear
Implementation Method 2
a plurality of bearings configured to guide the rack gear to make a linear reciprocating motion and disposed to face the first surface of the rack gear; and at least one of the plurality of bearings may be in contact with the rack gear
Data Source
AI summary
An electronic apparatus according to an embodiment comprises: a first housing; a second housing coupled to the first housing to be slidable; a flexible display disposed on a surface formed by the first housing and the second housing, and is configured to be expanded or contracted according to the slide-in or slide-out movement of the second housing; a rack gear fastened with the first housing; a pinion gear which is configured to be driven while engaging with the rack gear; a motor driver fastened with the second housing and configured to rotate the pinion gear; a bracket which surrounds part of the motor driver and the pinion gear, and is fastened with the second housing; and a rack gear case surrounding a first surface and both side surfaces of the rack gear.