Triple-Layer Transparent Display for Dual-Pilot Cockpit Readability
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Solution Overview
Problem
Current transparent OLED display screens in aeronautical cockpits cannot simultaneously provide information to both pilots without creating an opaque barrier, leading to unreadable inverted displays when viewed from both sides.
Innovation Solution
A hybrid display device comprising a stack of three flat screens: a transparent emissive matrix screen for each user, with a transparent blocking matrix screen in between to control image visibility, using image processing to opacify specific areas and ensure readable text and symbols on both sides.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a transparent OLED screen is placed between two pilots to display information, then information can be provided to both pilots, but the display becomes inverted and unreadable when viewed from both sides
Solution Approach 1:
The display system is segmented into three separate screens: a first transparent OLED screen for the first pilot, a second controllable transparency screen in the middle, and a third transparent OLED screen for the second pilot. This segmentation allows each screen to perform a specific function - the first and third screens display information for their respective pilots, while the second screen controls light transmission to prevent inversion issues, enabling readable displays for both pilots simultaneously
Solution Approach 2:
The second screen with controllable transparency acts as an intermediary between the first and third screens. It mediates the light transmission from the first screen to the third screen and vice versa, controlling when and how light passes through to ensure that text and symbols remain readable for both pilots without being inverted, thus solving the readability problem
2Adaptability or versatility
If multiple display screens are arranged on the cockpit dashboard, then information can be provided to crew members, but the view of the exterior landscape is blocked
Solution Approach 1:
The second screen implements local quality control by selectively adjusting transparency in different areas. When information display is needed, specific regions are made opaque to block light and display content clearly. When landscape viewing is needed, those same regions can become transparent, allowing the exterior view to pass through. This local control of transparency quality enables the system to adapt to different operational needs without permanently blocking the view
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 simultaneous, readable information display for both pilots with maintained transparency, reducing the number of screens and enhancing exterior landscape visibility, particularly beneficial for helicopter crews.
Implementation Method 1
Control of the light transmission of the second display screen can be obtained either by light absorption or by reflection.
Implementation Method 2
the second display screen is a liquid crystal screen with variable transmission
Implementation Method 3
a screen of the PDLC type with dispersed polymers
Implementation Method 4
The first display screen and the third display screen are matrix screens of the OLED type
Data Source
Figure 1~2b
Figure 3
Figure 4
AI summary
The general field of the invention is that of hybrid display devices comprising several screens of different types.The device according to the invention comprises a stack of three superimposed display screens of the same dimensions and means for generating and processing images, the first display screen being a transparent emissive matrix screen, the second display screen being a matrix screen with controlled transparency, the third display screen being a transparent emissive matrix screen, the second display screen being arranged between the first display screen and the third display screen so as to be able to block all or part of the image displayed by the first display screen and/or the third display screen, the stack of the three screens being arranged so as to be able to display an image on its first face and an image on its second face, the two images being able to be identical.