Multi-Joint Foldable Display Support for Flat Unfolding
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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 develop bendable structures.
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 a display panel is bent to enable unfolding, then the display area is increased and mobility is improved, but the flatness of the side and central portions deteriorates
Solution Approach 1:
The patent applies local quality by introducing an elastic portion specifically at the side portion of the display panel, rather than uniformly treating the entire panel. This elastic portion has different mechanical properties (flexibility) compared to the central display area, allowing the side to bend while maintaining the central portion's flatness for proper image display.
Solution Approach 2:
The display panel is segmented into different functional zones: a flexible side portion containing the elastic portion that can bend, and a central rigid portion that maintains flatness. This segmentation allows different parts of the same structure to have different degrees of flexibility, resolving the contradiction between overall flexibility and local flatness.
2Adaptability or versatility
If the display panel is unfolded to increase display area, then versatility is improved, but maintaining flatness becomes more difficult
Solution Approach 1:
The patent changes the mechanical parameter (flexibility) of specific portions of the display panel by introducing the elastic portion. This allows the panel to transition between folded and unfolded states while maintaining appropriate flatness in each state through the controlled elasticity of the side portions.
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 apply pressure and support the panel's bent state.
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.