Foldable Electronic Apparatus Support Plate Impact Absorption

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Solution Overview

Problem

Existing foldable electronic apparatuses face reliability issues due to external impacts, as they lack effective structural support to protect sensitive components during folding and unfolding operations.

Innovation Solution

The design incorporates a foldable electronic apparatus with a specific structural configuration, including a folding area, non-folding areas, support plates, and input sensors, where the second support plate has an edge protruding further than the first support plate, creating a gap of 100 μm to 500 μm to absorb external impacts and protect the first support plate and input sensors.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single support plate structure is used in foldable electronic apparatuses, then the device complexity is reduced, but the reliability against external impacts deteriorates

Engineering Contradiction:
Improvesupport plate structureVSAvoidreliability against external impact
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The support plate is divided into multiple segments: a first support plate positioned above the active area and a second support plate positioned below the first support plate. This segmentation allows each plate to perform specific protective functions, with the second support plate extending beyond the first to provide impact absorption at the edges, thereby improving reliability without excessive complexity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The second support plate extends in the second direction (width direction) beyond the edges of the first support plate, creating an L-shaped configuration when viewed from above. This dimensional extension provides additional protection against external impacts from the sides and corners, enhancing reliability through spatial distribution of protective elements

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Reliability

If the second support plate edge protrudes further than the first support plate, then the protection against external impact is improved, but the device complexity increases

Engineering Contradiction:
Improveprotection against external impactVSAvoidsupport plate configuration
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The support structure is segmented into two distinct plates with different geometries. The first support plate covers the active area while the second support plate extends beyond it, creating a hierarchical protection system where each segment has a specific role in absorbing and distributing external impacts

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The second support plate protrudes beyond the first support plate to create an outer protective barrier that absorbs external impacts before they reach the more critical first support plate and active area components, providing beforehand cushioning against potential damage

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

Data Source

PatentUS11552264B2Electronic apparatus
Publication Date: 2023.01.10 SAMSUNG DISPLAY CO LTD
  • US11552264B2 patent drawing
  • US11552264B2 patent drawing
  • US11552264B2 patent drawing

AI summary

An electronic apparatus includes an electronic panel, a first support plate below the electronic panel, a second support plate below the first support plate, and a first input sensor between the first support plate and the second support plate. The electronic panel includes light emitting parts arranged in an active area. The active area includes a folding area and a first non-folding area and a second non-folding area adjacent to the folding area and spaced apart from each other. The first support plate includes a folding part overlapping the folding area, and a first support part and a second support part spaced apart from each other, the folding part being disposed between the first support part and the second support part. An edge of the second support plate protrudes further in the second direction than an edge of the first support plate protrudes.