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Double-channel encryption pixel structure design method

A design method and technology of pixel structure, applied in the field of optical structure coding of anti-counterfeiting encryption patterns, can solve problems such as increasing the density of encrypted information, and achieve the effect of raising the manufacturing threshold and simplifying information decryption

Active Publication Date: 2022-01-07
SUN YAT SEN UNIV
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  • Claims
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Problems solved by technology

However, this patent does not involve any technical solutions related to improving the encryption level of the grating pattern and at the same time increasing the density of encrypted information per unit area

Method used

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  • Double-channel encryption pixel structure design method
  • Double-channel encryption pixel structure design method
  • Double-channel encryption pixel structure design method

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Embodiment Construction

[0019] The accompanying drawings are for illustrative purposes only and cannot be construed as limiting the patent;

[0020] In order to better illustrate this embodiment, some parts in the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product;

[0021] For those skilled in the art, it is understandable that some well-known structures and descriptions thereof may be omitted in the drawings.

[0022] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] A method for designing a dual-pass encrypted pixel structure, even if the outline of a single dual-pass encrypted pixel is a square or a circle.

[0024] A dual-channel pixel is composed of four sub-pixels of equal area, and the sub-pixel contours are divided into regular triangles, squares, trapezoids, and fans according to the division method.

[0025] Each sub-pixel in the double-pa...

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Abstract

The invention provides a double-channel encryption pixel structure design method, an encryption anti-counterfeiting element formed by a double-channel encryption pixel structure designed by the method can effectively improve the manufacturing threshold of grating type encryption information patterns, and the purposes that information decryption is simple, but a coding structure is difficult to imitate are achieved; two completely different optical images are interpreted through crosstalk-free concentric switching under the condition of horizontally rotating by 90 degrees, in the switching process, the images do not have the visual photosensitive difference before and after switching due to the same light field intensity distribution, and the artistic impression of the encrypted pattern is improved while the unclonability of the encrypted pattern is improved.

Description

technical field [0001] The present invention relates to the field of optical structure coding of anti-counterfeit encrypted patterns, and more specifically, relates to a double-path encrypted pixel structure design method. Background technique [0002] Three mature technologies for preparing grating structures, such as embossing, transfer printing and photolithography, have promoted the application of grating-like patterns in the field of information anti-counterfeiting. However, the common grating encryption patterns currently on the market are often only composed of simple one-dimensional gratings, resulting in serious homogeneity of the grating encryption patterns, so that such patterns only play a decorative or beautifying role in most cases. At the same time, due to the low threshold for grating pattern preparation and simple pattern design, the anti-counterfeiting pattern constructed by this type of structure is very easy to be copied and embezzled. Therefore, the grat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/467H04N19/182
CPCH04N19/467H04N19/182
Inventor 陈旭东钟世龙
Owner SUN YAT SEN UNIV
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