Simulated Lavatory Window Display for Aircraft

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Solution Overview

Problem

Commercial aircraft lavatories often feel confining due to limited space, and incorporating real windows would require structural changes to the aircraft body, which is undesirable.

Innovation Solution

A display system simulating a window is installed in the lavatory, comprising a bezel, a semi-transparent sheet, an opaque back plate, and a light source, which mimics the appearance of a window and enhances the perception of spaciousness without altering the aircraft's structure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If a real window is incorporated in the lavatory, then the perception of spaciousness is improved, but structural modifications to the aircraft body are required

Engineering Contradiction:
Improveperception of spaciousnessVSAvoidstructural modifications
Core Design Contradiction:
Volume of moving objectVSEase of manufacture

Solution Approach 1:

The patent applies the copying principle by creating a simulated window display that visually replicates the appearance of a real window without physically modifying the aircraft structure. The display system includes a bezel, semi-transparent sheet, opaque back plate, and light source that together create a fake window effect, allowing passengers to perceive spaciousness while avoiding structural changes to the aircraft body.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent replaces the mechanical/structural system (actual window requiring structural modifications) with an optical/electronic system (display system using light and semi-transparent materials). Instead of physically opening the aircraft body to create a real window, the invention uses a display system that projects or presents a window-like appearance through optical means, eliminating the need for structural modifications.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Volume of moving object

If the lavatory space is increased, then the confining feeling is reduced, but the seat count must be reduced

Engineering Contradiction:
Improvelavatory spaceVSAvoidseat count
Core Design Contradiction:
Volume of moving objectVSProductivity

Solution Approach 1:

The patent applies the dimensionality change principle by transitioning from physical spatial expansion to visual/perceptual expansion. Instead of actually increasing the lavatory's physical volume (which would require reducing seat count), the display system creates the illusion of expanded space by projecting window-like visuals that make the confined physical space feel larger and more open to passengers.

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

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The simulated window feature provides a sense of openness and commonality with the rest of the aircraft cabin, improving the user experience by creating a spacious feel within the lavatory without the need for structural modifications.

Implementation Method 1

a light source disposed between the semi-transparent sheet and the opaque back plate

Methodology Applied
Scientific EffectLight emission: Light Emitting Diode

Data Source

PatentUS10899453B2Vehicle with a simulated window feature
Publication Date: 2021.01.26 THE BOEING CO
  • US10899453B2 patent drawing
  • US10899453B2 patent drawing
  • US10899453B2 patent drawing

AI summary

An example of operating a display system of a lavatory of a vehicle is provided. The method includes: (i) receiving, at a controller, information indicating that the lavatory is in use; (ii) in response to receiving the information, operating, by the controller, the display system in a first state while the lavatory is in use; (iii) determining, by the controller, that the lavatory is no longer in use; and (iv) in response to determining that the lavatory is no longer in use, operating, by the controller, the display system in a second state.