Three-dimensional code generation method and device based on quantum dots

Abstract

The invention discloses a three-dimensional code generation method based on quantum dots. The method comprises the steps: providing a plurality of kinds of printing ink with quantum dot light-emitting materials, and enabling each kind of printing ink to emit light of a corresponding color under preset excitation light, with a color which can be emitted by each printing ink having a corresponding coding coordinate value; printing a two-dimensional code image, irradiating the two-dimensional code image with excitation light, and obtaining the two-dimensional code image in an excitation state; constructing a three-dimensional space coordinate value (x, y, z) of each pixel point in the two-dimensional code image, wherein x is the coordinate position of the pixel point in the x-axis direction of the two-dimensional code image, y is the coordinate position of the pixel point in the y-axis direction of the two-dimensional code image, z is the coding coordinate value corresponding to the color displayed by the pixel point in the excitation state, and a three-dimensional code image with three-dimensional space coordinate values is obtained. According to the method and device, the information storage capacity of the two-dimensional code is effectively improved.

Description

technical field [0001] The invention relates to the field of three-dimensional code anti-counterfeiting technology, in particular to a method and device for generating a three-dimensional code based on quantum dots. Background technique [0002] QR code is a very common anti-counterfeiting mark, which has the characteristics of large storage capacity, high confidentiality, and high traceability. Therefore, it is used in technical fields such as commodity anti-counterfeiting, product traceability, and product tracking. However, from a technical point of view, the QR code itself has no anti-counterfeiting function, it just graphs some information, and anyone can obtain this information through existing scanning software and generate the same QR code. [0003] With the advancement of the information age, the functions of computers have become quite powerful, and the demand for information storage is also increasing. The original two-dimensional code can no longer meet the needs...

AI Technical Summary

Problems solved by technology

However, from a technical point of view, the QR code itself has no anti-counterfeiting function, it just graphs some information, and anyone can obtain this information through existing scanning software and generate the same QR code

[0003] With the advancement of the information age, the functions of computers have become quite powerful, and the demand for information storage is also increasing. The original two-dimensional code can no longer meet the needs of computer users and barcode users due to the small amount of information storage.

The maximum capacity of a two-dimensional code depends on the resolution capability of mainstream scanning equipment. The more information the two-dimensional code itself has, the more pixels it needs. However, the resolution capability of current mainstream scanning equipment is also limited. To expand the capacity of the pixels, the pressure on the scanning equipment is too great, and it is not easy to popularize and apply. Therefore, there is a need for a method to increase the information storage capacity of the two-dimensional code under the condition that the number of pixels of the two-dimensional code remains unchanged.

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