Pivoting Display Stand Layout for Stable Portrait and Landscape Use

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Solution Overview

Problem

Existing display devices face challenges in maintaining stability at various installation angles, especially when transitioning between landscape and portrait orientations, leading to instability and difficulty in use.

Innovation Solution

A display device with a housing featuring a pivotable stand on its rear face, allowing for adjustable installation angles and enhanced stability in both orientations, utilizing a rotatable stand with a rectangular frame shape and elastic members for improved gripping, and a recessed design to manage cables and connectors.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a built-in kickstand is provided to enable landscape and portrait orientations, then the degree of freedom of installation is increased, but stability at optimal viewing angles is difficult to achieve

Engineering Contradiction:
Improveinstallation orientation flexibilityVSAvoiddisplay stability at optimal angle
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The stand is designed to be rotatable about a rotation axis, allowing it to dynamically adjust between different orientations (landscape and portrait modes). This dynamic capability enables the display to adapt to different installation scenarios while maintaining stability through controlled rotational movement rather than fixed positioning.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The stand has an asymmetric width design where the width in the long-side direction is smaller than the width of the housing in the long-side direction. This asymmetric configuration optimizes the center of gravity distribution and contact area with the support surface, enhancing stability at optimal viewing angles while accommodating both landscape and portrait orientations.

Inventive Principle:
Principle #4Asymmetry

2Area of stationary object

If the stand width in long-side direction equals housing width, then maximum support surface area is achieved, but the stand becomes too wide for portable use

Engineering Contradiction:
Improvestand support surface areaVSAvoidportability
Core Design Contradiction:
Area of stationary objectVSAdaptability or versatility

Solution Approach 1:

The stand width is optimized locally rather than uniformly matching the housing width. By making the stand width in the long-side direction smaller than the housing width, the design creates an optimal balance between providing sufficient support surface area for stability and maintaining a compact profile for portability. This local optimization allows the stand to be wide enough for stability while remaining narrow enough for easy carrying.

Inventive Principle:
Principle #3Local quality

Data Source

PatentEP4339735A1Display device
Publication Date: 2024.03.20 RICOH CO LTD
  • EP4339735A1 patent drawingFigure 1
  • EP4339735A1 patent drawingFigure 2
  • EP4339735A1 patent drawingFigure 3A~3B

AI summary

A display device (100; 100-2) includes a housing (110) having a rectangular shape in plan view, a display (121) having a screen surface exposed from a front face of the housing (110), and a stand (136; 136-2) disposed on a rear face of the housing (110) and pivotable on a rotation axis at a center in a short-side direction of the housing (110), to open and close relative to the housing (110). The stand (136; 136-2) has a width (W2) in a long-side direction of the housing (110) smaller than a width (W1) of the housing (110) in the long-side direction.