Solid-State Display With Graded Index Interface for High Pressure

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Solution Overview

Problem

Conventional displays collapse under high pressure environments, such as underwater conditions, due to voids in their housing design.

Innovation Solution

The use of a display system with an optical interface comprising a material with a graded index of refraction, coupled with an optically transmissive material and a reflective surface, allowing the display to be constructed in a solid state without voids, thus maintaining structural integrity under pressure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional displays with curved lenses and voids in housing are used, then the display can function in normal environments, but the display collapses under high pressure environments

Engineering Contradiction:
Improvedisplay structural integrityVSAvoidhigh pressure collapse
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent removes the curved lens component entirely from the display system. Instead of using a curved lens to focus light, the invention employs a flat lens integrated into the touch-sensitive display panel, thereby eliminating the void space that would collapse under high pressure.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent employs a flat lens formed as a thin film or integrated structure within the display panel itself. This thin-film approach eliminates the need for bulky curved lens elements and creates a solid-state structure that can withstand high pressure without collapsing.

Inventive Principle:
Principle #30Flexible shells and thin films

2Strength

If a solid state display configuration is used, then the display maintains structural integrity under high pressure, but the optical performance must be maintained without curved lenses

Engineering Contradiction:
Improvepressure resistanceVSAvoidimage quality
Core Design Contradiction:
StrengthVSIllumination intensity

Solution Approach 1:

The patent replaces the mechanical curved lens structure with an optically functional flat lens that achieves the same light-focusing purpose through different optical mechanisms. This substitution maintains image quality while enabling solid-state construction that resists high pressure.

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

Solution Approach 2:

The patent changes the optical parameters by using a flat lens with specific refractive index properties and thickness variations to achieve the necessary light focusing and image formation without the traditional curved geometry. This parameter change enables both solid-state construction and maintained optical performance.

Inventive Principle:
Principle #35Parameter changes

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

Enables the use of displays in high-pressure environments without collapse, by focusing and reflecting images effectively onto a viewing surface, even in solid state configurations.

Implementation Method 1

an optical interface comprising a material with a graded index of refraction to receive an optical signal from a remote source

Methodology Applied
Scientific EffectGraded index of refraction: Refraction

Implementation Method 2

a reflective surface coupled to the optically transmissive material to reflect the image onto a viewing surface

Methodology Applied
Scientific EffectReflection: Reflection

Data Source

PatentUS8526820B1High pressure display
Publication Date: 2013.09.03 THE BOEING CO
  • US8526820B1 patent drawing
  • US8526820B1 patent drawing
  • US8526820B1 patent drawing

AI summary

Described herein are embodiments of displays which may be used in high pressure environments, e.g., in underwater environments, and systems which utilize such displays. In some embodiments, a system comprises at least one electronic device comprising an optical output, a first optical interface to couple the optical output to an optical transmission medium, a second optical interface coupled to the optical transmission medium, and a display coupled to the second optical interface. In some embodiments the second optical interface comprises a material having a graded index of refraction, and the display comprises an optically transmissive material coupled to the second optical interface to transmit an image from the second optical interface to a reflective surface.