Foldable Display Device With Nested Housings For Miniaturization
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Solution Overview
Problem
Existing display devices lack the ability to be foldable, miniaturized, and provide continuous, unbroken display while being thin and novel.
Innovation Solution
A foldable display device with a flexible panel that can be folded multiple times, featuring housings that store circuits and components, allowing for selective display and power management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the display device is made foldable with multiple housings, then portability and miniaturization are improved, but device complexity increases
Solution Approach 1:
The display device is divided into multiple housings (first housing, second housing, third housing) that can be folded relative to each other. Each housing contains specific circuits and components, allowing the device to be compact when folded while distributing functional complexity across separate modules.
Solution Approach 2:
When the display panel is folded, the housings overlap and nest within each other's spatial footprint. The first, second, and third housings are arranged such that they occupy overlapping volumes when folded, achieving miniaturization while maintaining all necessary functional components within the nested structure.
2Ease of operation
If the display panel is made flexible and foldable, then portability is improved, but reliability decreases due to potential damage at bend portions
Solution Approach 1:
The display panel is designed with different properties at different locations. The bend portion has specific structural characteristics that differ from the flat display regions, optimized for flexibility and stress resistance. The curvature radius is controlled to be greater than or equal to 1 mm and less than or equal to 100 mm to balance flexibility and durability.
Solution Approach 2:
The housing structure provides protective coverage over the bend portion of the display panel before any damage can occur. The housings are positioned to shield the vulnerable folded region from external impacts and environmental factors, preventing damage before it happens.
3Adaptability or versatility
If multiple circuits are distributed across multiple housings, then device functionality is improved, but power consumption increases
Solution Approach 1:
The display device enables dynamic control of different display portions independently. When the display panel is folded, the system can selectively activate only the visible portions (first portion, second portion, or third portion) while keeping other portions inactive, thereby reducing overall power consumption while maintaining functional versatility.
4Length of stationary object
If the display device is thinned, then portability is improved, but manufacturing precision requirements increase
Solution Approach 1:
The thinned display device is constructed by segmenting functions across multiple thin housings rather than using a single thick housing. This segmentation allows each housing to be manufactured and assembled with precise thickness control, achieving an overall thin profile while maintaining structural integrity through modular construction.
Data Source
AI summary
A novel foldable display device or an electronic device using the same, e.g., a portable information processor or a portable communication information device, is provided. A foldable display device of which a display panel can be folded n times (n≥1, and n is a natural number) at a curvature radius of greater than or equal to 1 mm and less than or equal to 100 mm is obtained. The display device can be miniaturized by being foldable. In addition, in the state where the flexible display panel is opened, display which is unbroken and continuous over a plurality of housings is possible. The plurality of housings can store a circuit, an electronic component, a battery and the like inside as appropriate, and the thickness of each housing can be small.