Folding Display Housing Segmentation for Portability and Touch
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Solution Overview
Problem
Existing folding type display apparatuses are not suitable for mobile applications due to increased thickness and weight, and they compromise touch operability, especially when folded, as they lack effective curvature management and handling mechanisms.
Innovation Solution
A folding type display apparatus with a sheet-shaped flexible display section and multiple housings, including a channel-shaped first housing and bendable plate-shaped second and third housings, where the display section is fixed and the folding portion is housed within the first housing, and a holding member connects and supports the housings to maintain curvature and touch operability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a flexible display apparatus is folded to enable portability, then adaptability is improved, but the thickness and weight increase making it unsuitable for mobile applications
Solution Approach 1:
The housing is divided into multiple separable components: a first housing, a second housing, and a third housing that can be bent relative to each other. This segmentation allows the display apparatus to be folded into a compact form for portability while each segment maintains a thin and lightweight structure, preventing the overall weight from increasing significantly.
Solution Approach 2:
The housing employs a dynamic bending mechanism where the second housing can be bent relative to the first and third housings. This dynamic structure enables the apparatus to transition between a flat unfolded state for display use and a folded compact state for portability, without requiring additional heavy structural supports.
2Adaptability or versatility
If the display section is folded to a tight curvature, then portability is improved, but touch operability deteriorates due to insufficient curvature management
Solution Approach 1:
The first housing contains a recessed portion specifically positioned at the folding location of the display section. This local structural feature provides targeted curvature management only where needed during folding, while the rest of the display surface maintains its flatness and full touch operability when unfolded.
Solution Approach 2:
The recessed portion in the first housing creates a nested structure where the folding portion of the display section is received and guided within this recessed space. This nesting arrangement ensures the display section follows a controlled curvature path during folding, preventing excessive bending that would compromise touch sensitivity.
3Weight of moving object
If the housing structure is simplified to reduce weight, then weight is reduced, but the ability to maintain curvature and touch operability worsens
Solution Approach 1:
The housing is segmented into three separate components (first, second, and third housings) connected through bending joints. This segmentation allows each component to be optimized for minimal weight while the collective arrangement provides the necessary structural support for curvature management during folding operations.
Solution Approach 2:
The recessed portion in the first housing acts as an intermediary structure that mediates between the bending second housing and the display section. It provides the necessary geometric constraint for curvature management without requiring heavy reinforcement, thus maintaining reliability while keeping the overall structure lightweight.
Data Source
AI summary
A folding type display apparatus, which includes a first flexible substrate including a laminate of an inorganic film and an organic film; a sheet-shaped display section formed over the first flexible substrate and having flexibility, the sheet-shaped display section including a plurality of organic electro luminescence (EL) elements and a plurality of switching elements; and a second flexible substrate including a laminate of an inorganic film and an organic film and formed over the sheet-shaped display section, wherein the first and second flexible substrates include a plurality of the laminates respectively, and the inorganic films and the organic films are alternately laminated in the plurality of laminates.