Foldable Light-Emitting Device with Alternating Flexibility Regions
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Solution Overview
Problem
Existing light-emitting devices and display devices are not highly portable, browsable, lightweight, or flexible, and are prone to breakage, with limited display or light-emitting regions.
Innovation Solution
A light-emitting device with alternating strip-like high and low flexibility regions, where the high flexibility regions include a flexible light-emitting panel and the low flexibility regions include a support panel with lower flexibility, allowing the device to be folded and unfolded for enhanced portability and browsability, while maintaining a seamless large light-emitting region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the device is made thin and lightweight for portability, then weight and thickness are reduced, but the device becomes more prone to breakage
Solution Approach 1:
The device is divided into multiple flexible panels (first flexible panel, second flexible panel, third flexible panel) connected by folding portions, allowing the device to be segmented into foldable units that maintain structural integrity while reducing overall weight and thickness
Solution Approach 2:
The device employs flexible panels with flexible backlights and flexible display panels that can bend and fold, replacing rigid structures with flexible thin-film components to achieve weight reduction and thinness while maintaining durability through flexibility
2Ease of operation
If the device is made flexible and foldable for portability, then ease of carrying is improved, but the light-emitting region may be disrupted or broken
Solution Approach 1:
The light-emitting region is segmented across multiple flexible panels, with each panel containing a flexible backlight and flexible display panel that can independently flex without disrupting the overall light-emitting function
Solution Approach 2:
The device allows dynamic change in curvature radius at folding portions, enabling the flexible panels to bend to different degrees while maintaining light-emitting integrity through controlled parameter changes in the flexible components
3Reliability
If a rigid structure is used to maintain structural integrity, then reliability is improved, but flexibility and portability are reduced
Solution Approach 1:
The device replaces rigid structural components with flexible panels, flexible backlights, and flexible display panels that inherently maintain structural integrity through their flexible nature, enabling both reliability and portability
Solution Approach 2:
The device transitions from a static rigid structure to a dynamic flexible structure that can adapt its shape through folding portions, allowing the structural integrity to be maintained in both folded and unfolded states through dynamic configuration
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 device achieves high portability, browsability, and reliability with a seamless large light-emitting region, reducing the risk of breakage and power consumption, and can be made thin and lightweight.
Implementation Method 1
The present invention relates to a light-emitting device, a display device, an electronic device, a lighting device, or a manufacturing method thereof. In particular, the present invention relates to a light-emitting device, a display device, an electronic device, or a lighting device utilizing electroluminescence (EL)
Data Source
AI summary
A light-emitting device includes a strip-like high flexibility region and a strip-like low flexibility region arranged alternately in a direction. The high flexibility region includes a flexible light-emitting panel. The low flexibility region includes the light-emitting panel and a support panel having a lower flexibility than that of the light-emitting panel and overlapping with the light-emitting panel. It is preferable that the light-emitting panel include an external connection electrode and that a length in the direction of a low flexibility region A that overlaps with the external connection electrode be longer than a length in the direction of a low flexibility region B that is closest to the region A.