Two-dimensional code anti-counterfeit label and manufacturing method thereof

Abstract

The invention discloses a two-dimensional code anti-counterfeit label. The two-dimensional code anti-counterfeit label comprises four stripes which correspond to four kinds of color information respectively, and the stripes are constituted by low-frequency optical gratings with different frequencies and different visible directions; the color information comprises black, white, a first gray leveland a second gray level; the black corresponds to a black module area of a two-dimensional code image in the two-dimensional code anti-counterfeit label, the white corresponds to a white module area of the two-dimensional code image, the first gray level corresponds to a coincident area of a hidden information image in the two-dimensional code anti-counterfeit label and the black module area, andthe second gray level corresponds to a coincident area of the hidden information image and the white module. By means of the two-dimensional code anti-counterfeit label, an excellent anti-counterfeitfunction of the two-dimensional code label can be achieved, information can be simply hidden and obtained without the assistance of any auxiliary equipment, and the two-dimensional code anti-counterfeit label is low in cost and easy to use.

Description

technical field [0001] The invention relates to the field of anti-counterfeiting labels, more specifically, the invention relates to a two-dimensional code anti-counterfeiting label and a manufacturing method thereof. Background technique [0002] Two-dimensional code technology is developed on the basis of one-dimensional barcode. It has the advantages of high information density, strong coding ability, and strong error correction ability. It can be well combined with mobile terminals such as smartphones. Users only need to use The QR code recognition software on the mobile phone can obtain the text, image, sound and other information represented by the QR code by taking a QR code image. Therefore, the QR code is called the entrance of the Internet. With its advantages of high efficiency and convenience, it is often used in mobile payment, shopping link sharing, concert or scenic spot tickets, etc. [0003] With the application and promotion of two-dimensional code technol...

AI Technical Summary

Problems solved by technology

[0003] With the application and promotion of two-dimensional code technology, while bringing convenience to users, it also brings many security risks

QR codes are easily copied and imitated, and the information of QR codes is also easily tampered with during use

Because the hidden picture will not have a great impact on the restoration of the original picture, the human eye cannot detect the difference

If a grating sheet corresponding to the frequency is used on the original image of the printed matter, and the grating sheet is rotated, when the rotation angle is consistent with the network line of the original image, the hidden image information will be displayed, but most of these hidden patterns or text information need to use identification tools It was only shown that this greatly increased the cost of the product

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