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A method of information encryption/decryption based on self-driven electrochromic display device

An information encryption and electrochromic technology, applied in the field of information materials, can solve the problems of lack of intermediate state or transition state of information decryption, uncontrollable information encryption speed, and adjust the time of information encryption, so as to simplify the double-layer film configuration and encryption And the effect of short decryption time and convenient encryption and decryption

Active Publication Date: 2022-07-29
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above materials have advanced information storage functions, they also have the following shortcomings: after the same device is prepared, it can only realize the encryption and decryption of a specific pattern, and the function of displaying multiple patterns in one device needs to be perfected; Secondly, there are only two direct states, encrypted state / decrypted state, and there is no intermediate state or transition state for information decryption, and it is impossible to designate a special state as the pattern required for information authentication in real time; in addition, the speed of information encryption in the above work is also uncontrollable It is impossible to adjust the time of information encryption according to the needs of users

Method used

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  • A method of information encryption/decryption based on self-driven electrochromic display device
  • A method of information encryption/decryption based on self-driven electrochromic display device
  • A method of information encryption/decryption based on self-driven electrochromic display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A method for encrypting / decrypting information based on a self-driven electrochromic display device, comprising the following steps:

[0043] (1) Take a 3cm×3cm piece of ITO / glass, wash it ultrasonically for 15 minutes with deionized water, acetone, ethanol and deionized water in turn, blow dry with nitrogen for use; The method prepares ITO / glass with a petal pattern, and obtains a conductive area I outside the petal pattern and a conductive area II in the pattern; on the etched patterned ITO / glass, a Prussian blue (PB) film is prepared to obtain a All-blue PB / ITO / glass film that hides the petal pattern, realizes the encryption of pattern information;

[0044] The specific preparation method of the Prussian blue (PB) film is as follows: the ITO / glass with the petal pattern is ultrasonically washed with deionized water, acetone, ethanol and deionized water in sequence for 15 minutes, and dried with nitrogen for use; preparation of potassium ferricyanide, chloride Potass...

Embodiment 2

[0050] A method for encrypting / decrypting information based on a self-driven electrochromic display device, comprising the following steps:

[0051] (1) Take a piece of ITO / glass of 3cm×3cm, ultrasonically wash it with deionized water, acetone, ethanol and deionized water for 15 minutes in turn, blow dry with nitrogen for use; pre-design the conductive circuits of the moon and sun patterns, and laser etching Prepare ITO / glass with moon and sun patterns; prepare Prussian blue (PB) thin film on the etched patterned ITO / glass to obtain full blue PB / ITO / glass with hidden moon and sun patterns Glass film, realize the encryption of pattern information;

[0052] The preparation method of Prussian blue (PB) film is as described in Example 1.

[0053] (2) Add acrylamide monomer (5.0g) to LiCl aqueous solution (4.2mol / L, 15mL), then add crosslinker N,N'-methylenebisacrylamide (MBAA, 20mg) and initiator Ammonium persulfate (20mg), after ultrasonic treatment of the mixture, a transparen...

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Abstract

The invention provides a method for information encryption / decryption based on a self-driven electrochromic display device, comprising the following steps: preparing a pattern to be encrypted on a conductive substrate, and then preparing a Prussian blue film on the surface of the conductive substrate to realize information encryption Encryption; the ionic PAM / LiCl gel film is placed on the Prussian blue film, and the conductive area inside the pattern or the conductive area outside the pattern and the ionic PAM / LiCl gel film are connected through the metal sheet, so as to display the encrypted pattern and realize the information Decryption; then the connection between the inner region of the pattern or the outer region of the pattern and the ionic PAM / LiCl gel film is disconnected, and the information is re-encrypted. The method of the invention utilizes self-driven electrochromic devices to realize encrypted storage and decrypted display of information, can greatly enhance the security of information, and has wide applications in the fields of information confidentiality, information storage and anti-counterfeiting signs.

Description

technical field [0001] The invention relates to an information encryption / decryption method based on a self-driven electrochromic display device, belonging to the technical field of information materials. Background technique [0002] With the rapid development of electronic information technology, our daily life is flooded with massive data, and it is easier for people to obtain information and leak confidential information. In recent years, researchers have gone to great lengths to explore modern information storage strategies and information storage devices, ranging from single-color to multi-color and full-color, from rigid substrates to flexible substrates, from printable inks to color-changing or rewritable papers, etc. Anti-counterfeiting materials and corresponding technologies, such as anti-counterfeiting codes, fluorescent recognition, holographic anti-counterfeiting, etc., have achieved unprecedented development. However, methods for multi-level information secur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/60G06F21/62G06F21/64
CPCG06F21/602G06F21/6218G06F21/64
Inventor 赵飞菲王文寿王旭赵敬梅
Owner SHANDONG UNIV
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