Multi-Joint Display Support With Elastic Pressing for Panel Flatness
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Solution Overview
Problem
Maintaining the side and central portions of a display panel flat when unfolded is challenging, especially as display panels become more prominent in electronic devices and are designed to be bent at various angles.
Innovation Solution
A display apparatus with a multi-joint structure and elastic portions that maintain the display panel flat by using a case, moving portion, and elastic portions to press the multi-joint structure towards the display surface, supported by a driver and locking mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the display panel is unfolded to increase the display area, then the display area is improved, but the flatness of the side and central portions deteriorates
Solution Approach 1:
The patent applies local quality by introducing elastic portions at specific locations (side surfaces of the multi-joint structure) rather than uniformly across the entire structure. These elastic portions are strategically positioned to provide localized support and pressing force to the display panel, maintaining flatness in critical areas while allowing the overall display area to be expanded through the unfolding mechanism.
Solution Approach 2:
The elastic portions function as counteracting elements that apply pressing force against the display panel in the opposite direction of the bending force. When the display panel is unfolded, the elastic portions expand and press against the panel to counterbalance the bending forces, thereby maintaining flatness in the side and central portions despite the increased display area.
2Adaptability or versatility
If the display panel is bent to allow unfolding, then the adaptability is improved, but the flatness of the display panel deteriorates
Solution Approach 1:
The patent employs dynamics by using elastic portions that can dynamically adjust their state between compressed and expanded forms. When the display panel is folded, the elastic portions are compressed; when unfolded, they expand to provide pressing force. This dynamic behavior allows the system to maintain flatness during unfolding while preserving the adaptability to change between folded and unfolded states.
Solution Approach 2:
The elastic portions undergo parameter changes in their physical state (compressed vs. expanded) depending on the folding/unfolding state of the display panel. This parameter change allows the elastic portions to provide the necessary pressing force only when needed (during unfolding), thereby maintaining flatness without interfering with the unfolding capability and adaptability of the display apparatus.
3Shape
If elastic portions are added to maintain flatness, then the flatness is improved, but the device complexity increases
Solution Approach 1:
The elastic portions are designed to be self-service elements that automatically expand and press against the display panel when the multi-joint structure is unfolded, without requiring external control or additional actuators. This self-service mechanism maintains flatness through the inherent elastic recovery of the material, thereby improving flatness while minimizing the increase in device complexity.
Solution Approach 2:
The elastic portions act as intermediary elements between the multi-joint structure and the display panel. Rather than directly connecting or controlling the display panel, the elastic portions mediate the interaction by providing passive pressing force, thereby maintaining flatness without adding complex control systems or direct mechanical connections that would increase 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 solution effectively maintains the display panel flat, preventing wrinkles and ensuring a smooth unfolding experience by using elastic portions to counteract bending forces on the display panel.
Implementation Method 1
an elastic portion disposed on a side surface of the multi-joint structure and configured to press the multi-joint structure toward a surface of the display panel on which an image is displayed
Data Source
AI summary
Provided is a display apparatus. The display apparatus includes a case, a moving portion inserted into or withdrawn from the case, a multi-joint structure inserted into or withdrawn from the case, a display panel disposed on outer surfaces of the case and the multi-joint structure, maintained in a bent state on a side surface of the moving portion, and inserted into or withdrawn from the case in case that the moving portion moves, and an elastic portion disposed on a side surface of the multi-joint structure and configured to press the multi-joint structure toward a surface of the display panel on which an image is displayed.