Application of the hottest printing electronics in

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The application of printed electronics in packaging

there are usually only two types of devices - thin film transistor circuit (TFTC) and organic light emitting diode (OLED) that occupy the meetings and reports about printed electronics. Although the names of these two devices are very different, they are both luminous mobile color displays - none of them can be used as low-cost packaging materials so far. One day they will all become extremely important, but in terms of arbitrary use, the ideal printed electronic devices used on or in packaging will overshadow many commercial applications that are already in use

around us, we can already see examples of printed electronic products. Take a look at the magnificent large bulletin boards of elumin8 company in the UK and Schreiner variolight company, a branch of Schreiner Group GmbH Co. kg airline in Germany. They emit bright colors, and the light changes in turn. Those components are almost completely printed by wire printing technology - conductive layer, ceramic insulator, phosphorescent coating with metal copper doping, protector, etc. These displays are powered by a box of traditional electronic devices called AC electroluminescence 2 Driven by horizontal negative charge, one day we will also make this small box by printing

now, we have used printed electronic technology to embed video games on McDonald's packaging bags, which uses conductive patterns and batteries produced by t-ink Inc; In addition, the RFID smart tag used in the package has also used the printed antenna and internal connection. The battery detectors on the package are completely printed (resistors, thermal color displays and internal connectors), and the annual sales volume reaches several billion yuan, thanks to Avery Dennison company in Pasadena, California, and Mactac company in stow, Ohio, USA

another example of current printed electronic device applications is the new smart skin chip from power paper, It replaces the packaging of cosmetics and drugs. These small pieces filled with products are shipped directly from the manufacturer and used by patients. Using a printed battery and a conductive pattern, these small pieces release the drug by making the skin porous. Another product can make short-term tattoos for young people. The tattoo pattern can last for four months - just good enough to scare their mother

there is also a printing time/temperature recording label that has entered the testing stage. This label uses the printed electrochromic display produced by KSW microtec AG of Germany and infraab company of Oxnard, California (model: microcomputer controlled (fully automatic) wood-based panel universal experimental machine Oxnard). These labels are used for food packaging and blood bags, and can send back signals to record temperature changes. When the contained products deteriorate, the labels will show the words "expired". At present, a chip is used, so the label is not completely printed, but the battery and antenna are printed and combined with an RFID function

in the field of electronic power packaging, printing components provide a cheaper, more flexible and more powerful choice for many products, such as RFID (radio frequency identification) antennas, devices used for product promotion on outer packaging, time/temperature indicators, etc

the Swedish post office uses an express parcel called securepak produced by cypak AB company in Stockholm to mail. Securepak integrates printed graphic patterns and internal connecting wires, which can provide the recipient with relevant digital information, including the sender, the mailing content, the designated recipient, and any information that may be changed - all of which occur before the package is opened. With the help of accurate time marks, the quality is guaranteed and the problems related to accidents are solved, which ensures the integration of the delivery process. At present, this solution uses a microprocessor and costs about $6

together with findus, an international frozen food supplier, and a Swedish dairy supply chain, bioett of Sweden successfully tested a fully printed sensor/capacitor/biosensor that can send time/temperature characteristic signals. Under the premise of large volume production, it is estimated that it can reach a low cost of 15 cents each. Silicon chips are not required for this component

the performance of these batteries varies greatly, from low performance and low price to the opposite high performance and high price, which reflects the emerging market demand with wide diversity

technology outlook

in order to grasp the next development trend, we just need to look at what is being studied in the surrounding laboratories. Aardex USA in Union City, California, has been selling plastic bottles for tablets, which are equipped with a load cell. In this way, the drug industry is vigorously developing new medical materials and medical implant devices. Bottles can truly tell patients whether they are taking drugs on time and in quantity. Imation medical of Canada, cypak of Denmark, bang Olufsen MEDICOM, and other companies have intelligent blister packaging, plastic bottle packaging and more similar products. These packaging can record the time of taking medicine of patients and transmit the information to doctors through broadcast signals. MeadWestvaco healthcare packaging company in New York is trying to commercialize this invention of cypak company, but its price is about $15 each. Maybe but it will limit its application to drug testing

at present, 50% of the data of drug experiments are problematic, because this is the percentage of patients who use drugs incorrectly. Those from manufacturers, such as e-pillar and others, can give voice prompts. Design force, a subsidiary of Swedish SCA packaging company, has worked with a large pharmaceutical company to design a drug packaging. If a patient touches a drug bottle at an incorrect time, the packaging will call "it's not time to take medicine"

speaking of the printing technology used, at present, most printed electronic circuit products are printed by silk printing. However, inkjet printing technology is favored by polymer thin film transistor circuits (TFTC) and other new technologies, although rotary coating is used in some

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