Secure display device

Abstract

The invention relates to a secure display device having an input port for receiving an input signal having at least one item of information to be displayed, said secure display device being characterised in that it comprises a plurality of display matrices superimposed on each other and having at least one transparent display area, each display matrix of said plurality is associated with a controlmeans for controlling said display matrix, each of the control means being connected directly to the input port so that said display matrices of said plurality simultaneously display said at least one item of information from said input signal.

Description

technical field [0001] The present invention relates to the field of information and parameter displays, and more particularly to the field of so-called secure data displays. [0002] The invention finds particularly interesting applications for the display of safety data in the nuclear industry, transport and aviation. Background technique [0003] In areas where data display is critical and security-related, security data display is often controlled to ensure that the information is reliable and available. In fact, conventional displays may suffer from pixel freezing or matrix refresh defects. These phenomena are almost impossible to detect in real time without the use of complex and expensive software means, which can also malfunction. [0004] In fact, a method is known which consists in using a redundant loop which, for the information transmitted to the display, makes it possible to control the displayed information via software means. Document US 2012 / 0036418 descr...

AI Technical Summary

Problems solved by technology

[0005] However, in view of the increase in security data to be displayed in real time, such methods are becoming increasingly complex and expensive to implement, which further complicates the implementation of means for detecting failures of display devices

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