Curved Display Design for Expanded Area and Compact Size

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Solution Overview

Problem

Conventional electronic devices with flat screens face a trade-off between increasing display area and maintaining portability, as enlarging the screen size often results in increased device size, compromising portability, especially in mobile devices.

Innovation Solution

A curved display design is implemented, featuring a housing with a transparent external protective layer, a flexible panel module layer, and an opaque layer, where the panel module layer includes a non-display area under the opaque layer, allowing for an extended display area without increasing the device's overall size, and incorporating a touch sensing layer and sealing layer for enhanced functionality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If the size of a flat display area is increased to extend the display area, then the display area is improved, but the overall size of the electronic device increases, degrading portability

Engineering Contradiction:
Improvedisplay areaVSAvoidoverall size
Core Design Contradiction:
Area of stationary objectVSLength of stationary object

Solution Approach 1:

The patent applies curvature to the display surface, transforming the flat display into a curved structure. This allows the display area to extend in a three-dimensional space without proportionally increasing the device's footprint, effectively resolving the contradiction between maximizing display area and maintaining compact device size.

Inventive Principle:
Principle #14Spheroidality (Curvature)

Solution Approach 2:

The invention transitions from a two-dimensional flat display to a three-dimensional curved display structure. By utilizing the third dimension (curvature), the display area can be expanded without linearly increasing the device's length, width, or thickness, thus maintaining portability while enhancing display area.

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

2Area of stationary object

If a curved display structure is implemented to extend display area while maintaining size, then display area is improved, but the structural complexity increases

Engineering Contradiction:
Improvedisplay areaVSAvoidstructural complexity
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The patent employs a multi-layered structure where various functional layers (display layer, touch sensing layer, protective layer, sealing layer) are nested within each other. This nested arrangement allows the curved display structure to achieve complex functionality while maintaining a compact and organized form factor, managing structural complexity through systematic layering.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The invention utilizes flexible panel modules and thin film structures to create the curved display. These flexible components can be bent and shaped into curved configurations without requiring complex rigid support structures, thereby achieving the desired curved geometry while minimizing structural complexity.

Inventive Principle:
Principle #30Flexible shells and thin films

3Adaptability or versatility

If the panel module layer is made flexible to conform to curved surface, then adaptability to curved shape is improved, but the reliability and protection of internal components may be compromised

Engineering Contradiction:
Improveadaptability to curved shapeVSAvoidprotection of internal components
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent implements a nested protective structure where multiple layers (protective layer, sealing layer, adhesive layers) are arranged concentrically around the flexible panel module. This nested arrangement provides progressive protection, allowing the flexible internal components to maintain their curved shape while being shielded from external damage, thus preserving reliability.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The invention incorporates protective layers and sealing layers that are positioned beforehand to cushion and protect the flexible panel module from potential damage. These pre-positioned protective structures ensure that the flexible components, which are more vulnerable due to their flexibility, are adequately protected while maintaining their adaptability to curved shapes.

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

Data Source

PatentUS11953944B2Curved display, display case, and electronic device including the same
Publication Date: 2024.04.09 SAMSUNG ELECTRONICS CO LTD
  • US11953944B2 patent drawing
  • US11953944B2 patent drawing
  • US11953944B2 patent drawing

AI summary

A mobile electronic device includes a display including a flat portion, a first side portion extending from one side of the flat portion, and a second side portion formed extending from another side of the flat portion; and a frame including a flat part disposed under the flat portion of the display, a first side part formed at a first edge of the flat part, and a second side part formed at a second edge of the flat part, the flat part being disposed between the first side part and the second side part. The display includes an external protective layer and a panel module disposed under the external protective layer. The first side part includes a first support portion and a second support portion formed adjacent to the first support portion and having a step difference with the first support portion.