Flexible Display Device Sliding Casing Frame Mechanism
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Solution Overview
Problem
Flexible display devices face issues with wrinkles and damage when bent, due to their flexible nature, which affects their functionality and longevity.
Innovation Solution
A flexible display device design featuring a first casing, a second casing, and a frame, where the second casing slides relative to the first casing to switch between retracted and drawn-out states, with the frame driving the expansion and flattening of the display area, and a support mechanism to prevent squeezing and wrinkling, including a gear system and elastic members to manage deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the flexible display is bent to enable folding and expanding functions, then the device can occupy smaller space when folded and display in larger area when expanded, but the flexible display panel exhibits shape changes and wrinkles that may cause damage
Solution Approach 1:
The display system is divided into a first display region on the first casing and a second display region on the flexible display panel. The flexible display panel can be folded along a folding line, creating segmented display areas that can be independently managed. This segmentation allows the display to provide a larger total display area when expanded while enabling controlled folding to reduce the risk of damage to any single display region.
2Volume of moving object
If the flexible display is folded to reduce occupied space for portability, then the device becomes easier to carry, but the inner side surface of the flexible display is squeezed and wrinkled
Solution Approach 1:
The flexible display panel is disposed on the inner side of the second casing, which is movable relative to the first casing. When the device is folded, the second casing can be retracted into the first casing, and the flexible display panel is contained within the protective casing structure. This nesting arrangement protects the flexible display from external squeezing and wrinkling during folding and transport.
3Area of moving object
If the second casing is made movable to enable expansion and flattening of the display area, then the device can provide larger display area when drawn out, but the device complexity increases
Solution Approach 1:
The second casing is designed to be movable relative to the first casing, allowing the display device to dynamically transition between a folded state (with smaller display area) and an unfolded state (with larger display area). The flexible display panel itself is also dynamic, being able to fold and unfold along a folding line. This dynamic design enables the device to adapt its display area to different usage scenarios without requiring multiple fixed-size displays.
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
Enables a larger display area when expanded, easy retraction for portability, and reduced risk of damage by managing the flexible display's deformation through controlled movement and support, enhancing both functionality and durability.
Implementation Method 1
elastic members to manage deformation
Data Source
AI summary
A flexible display device includes: first and second casings; a frame movably assembled to the second casing; and a flexible display having first and second ends opposite to each other and first and second display areas. The second casing is movably assembled to the first casing to form a drawer configuration and slide relative to the first casing to switch between drawn-out and retracted states. The first end is connected to the first casing. The second end to the frame. In the retracted state, the flexible display is bent so the second display area is contained in the first and second casings. In a process from the retracted state to the drawn-out state, the second casing is drawn out from the first casing and drives the frame to move in the same direction to expand and flatten the second display area. A portable electronic device is also provided.