Foldable Display Bending Structure With Thin Molded Part Support
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Solution Overview
Problem
The existing electronic devices with molded parts in bending areas face issues of increased overall thickness, reduced active display area, and damage during reassembly due to the thickness of the molded parts and direct bonding forces.
Innovation Solution
The electronic device design incorporates a plate with an extension area that surrounds the bending area of the display and molded part, reducing the thickness of the molded part and using a bonding member attached to the plate to prevent damage during reassembly, while forming the housing concavely to minimize the black masking area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the thickness of the molded part increases to absorb impact, then impact protection is improved, but the overall thickness of the electronic device increases
Solution Approach 1:
The patent introduces a plate structure extending in the width direction (lateral dimension) to provide impact absorption and structural support, rather than increasing thickness in the vertical dimension. This dimensional shift allows impact protection without increasing overall device thickness.
Solution Approach 2:
The impact protection function is divided between multiple components: the plate provides structural support and initial impact resistance, while the molded part provides additional cushioning. This segmentation allows each component to be optimized for its specific function without requiring excessive thickness in any single component.
2Strength
If the molded part thickness increases, then impact absorption is improved, but the black masking area increases and active display area decreases
Solution Approach 1:
The plate extends in the width direction (lateral dimension) rather than requiring increased thickness in the vertical dimension, thereby providing impact protection without encroaching on the active display area in the width direction.
Solution Approach 2:
The plate is strategically positioned and shaped to provide impact protection only in the specific regions where it is needed (distal end and sides), rather than uniformly increasing protection across the entire device, thus minimizing the impact on display area.
3Ease of manufacture
If the bonding member is attached directly to the lower portion of the molded part, then assembly is simplified, but the molded part may be damaged during reassembling
Solution Approach 1:
The plate serves as an intermediary structure between the bonding member and the molded part. The bonding member is attached to the plate rather than directly to the molded part, distributing bonding forces and preventing direct stress concentration on the molded part that could cause damage during reassembly.
Solution Approach 2:
The plate structure is designed beforehand to absorb and distribute bonding forces, providing a cushioning effect that protects the molded part from damage during subsequent assembly and reassembly operations.
Data Source
AI summary
An electronic device according to an embodiment of the present disclosure may include: a housing, a display including a bending area disposed at a distal end of the display and extending and being bent, the display having at least a part surrounded by the housing, a window cover disposed in one direction of the display, a plate including an extension area extending and spaced apart from the bending area of the display, the plate having at least a part disposed in an other direction opposite to one direction of the display, and a molded part disposed in a space surrounded by the bending area of the display, the window cover, and the extension area of the plate.