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Information encryption/decryption method 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: 2021-07-16
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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  • Information encryption/decryption method based on self-driven electrochromic display device
  • Information encryption/decryption method based on self-driven electrochromic display device
  • Information encryption/decryption method 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 with deionized water, acetone, ethanol and deionized water for 15 minutes, and dry it with nitrogen gas for later use; pre-designed the conductive circuit of the petal pattern, and used laser etching Methods Prepare the ITO / glass with petal pattern, and obtain the outer conductive region I of the petal pattern and the inner conductive region II of the pattern; prepare a Prussian blue (PB) film on the etched patterned ITO / glass, and then obtain the pattern with The 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 for 15 minutes...

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 3cm×3cm ITO / glass, ultrasonically wash it with deionized water, acetone, ethanol and deionized water for 15 minutes in sequence, and dry it with nitrogen gas for later use; pre-design the conductive circuit of the moon and sun patterns, and laser etch Prepare ITO / glass with moon and sun patterns; prepare a Prussian blue (PB) film on the etched patterned ITO / glass, and you can get an all-blue PB / ITO / glass with hidden moon and sun patterns Glass film to 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 crosslinking agent N,N'-methylenebisacrylamide (MBAA, 20mg) and initiator Ammonium persulfate (20mg), the mixture was sonicated to ob...

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Abstract

The invention provides an information encryption / decryption method based on a self-driven electrochromic display device, and the method comprises the following steps: preparing a to-be-encrypted pattern on a conductive substrate, and then preparing a Prussian blue film on the surface of the conductive substrate to realize information encryption; arranging the ionic PAM / LiCl gel film on the Prussian blue film, and connecting the pattern internal conductive area or the pattern external conductive area with the ionic PAM / LiCl gel film through the metal sheet, so that the encrypted pattern is displayed, and information decryption is realized; and then disconnecting the connection between the pattern internal area or the pattern external area and the ionic PAM / LiCl gel film, and encrypting the information again. According to the method, encryption storage and decryption display of the information are achieved through the self-driven electrochromic device, the safety of the information can be greatly enhanced, and the method can be widely applied to the fields of information secrecy, information storage, anti-fake marks and the like.

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 inundated with massive data, and it is easier for people to obtain information and leak confidential information. In recent years, researchers have made every effort to explore modern information storage strategies as well as information storage devices, from monochrome to multicolor and panchromatic, from rigid substrates to flexible substrates, from printable inks to color-changing or rewritable paper, etc., Anti-counterfeiting materials and corresponding technologies, such as anti-counterfeiting codes, fluorescent identification, holographic anti-counterfeiting, etc., have achieved unprecedented development. However, methods for multi-level information securi...

Claims

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Application Information

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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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