Unlock instant, AI-driven research and patent intelligence for your innovation.

Two-dimensional code based on quantum dot photoluminescence

A photoluminescence and photoluminescence wavelength technology, applied in the field of two-dimensional codes, can solve problems such as user loss and difficulty for users to understand the reliability of two-dimensional codes, and achieve the effect of expanding data capacity and strong anti-counterfeiting ability.

Inactive Publication Date: 2018-03-30
FUZHOU UNIV
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method of using QR codes improves usability, but due to the lack of data, it is difficult for users to understand the credibility of this QR code, and even corresponds to deceptive links, causing losses to users

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Two-dimensional code based on quantum dot photoluminescence
  • Two-dimensional code based on quantum dot photoluminescence
  • Two-dimensional code based on quantum dot photoluminescence

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.

[0022] A two-dimensional code based on quantum dot photoluminescence of the present invention is a multilayer two-dimensional code printed by multiple layers of different quantum dot inks. The multi-layer two-dimensional code uses a variety of quantum dot inks with different photoluminescent wavelengths to print each layer separately. Use a single quantum dot ink to print a single layer of two-dimensional code graphics to form part of the overall data of the two-dimensional code. Each layer of quantum dot ink printing with different photoluminescent wavelengths is vertically stacked, and each layer uses the same two-dimensional area.

[0023] Under the action of an ultraviolet light source, the spectrometer identifies the luminous wavelength of each pixel and judges the bit stream 0, 1. Whether there is an excitation intensity exceeding...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a two-dimensional code based on quantum dot photoluminescence. The multi-layer two-dimensional code is formed by multiple types of different quantum dot ink through the multi-layer printing, and the multi-layer two-dimensional code uses the multiple types of the quantum dot ink with the different luminescence wavelengths. Organized two-dimensional graphs are printed in thesame area. A '0' or '1' bit stream is determined by judging whether the excitation wavelength corresponding to the peak value area of the luminescence wavelength is greater than a threshold value. The invention provides a two-dimensional code capacity expansion solution. The solution is capable of effectively improving the data storage volume of the two-dimensional code, and guaranteeing the possibility of large-scale operation, and has the anti-fake property.

Description

technical field [0001] The invention relates to a two-dimensional code based on photoluminescence of quantum dots. Background technique [0002] QR code, as a popular encoding method on mobile devices and devices in recent years, can store more information than traditional one-dimensional bar codes, and can also represent more data types. The traditional two-dimensional code uses a special set of graphics to distribute black and white graphics on the plane according to certain rules to record data information. In the code compilation, the "0" and "1" bits that constitute the internal logic basis of the computer are skillfully used. The concept of flow uses several geometric shapes corresponding to binary to represent text and numerical information, and automatically reads through image input devices or photoelectric scanning devices to realize automatic processing of information: it has some common features of barcode technology: each code system It has its specific charact...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06K19/06
CPCG06K19/06046
Inventor 李福山徐中炜胡海龙刘洋陈伟马福民孙凯
Owner FUZHOU UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com