화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2017년 봄 (04/05 ~ 04/07, 대전컨벤션센터)
권호 42권 1호
발표분야 고분자 소프트 일렉트로닉스
제목 R2R Gravure Printed TFT-Active Matrix and NFC Tags
초록 For the realization of ubiquitous society, the wireless sensor network and flexible display should be available without concerning the limit of cost and size. Therefore, the fully roll-to-roll (R2R) printed thin film transistors (TFTs) based costless NFC-sensor tags and flexible signage with a large area should be first practically available since the NFC tag with sensor can be used as a protocol to transfer information via smartphone, and flexible signage can take the roles of printing papers and wall papers. As a consequence of developing the costless NFC tag with sensor and the flexible large area signage, I would like to show the way of fabricating the costless NFC tag and TFT-active matrix for operating e-paper using the R2R gravure printing process. As reference examples, fully gravure printed 4 bit NFC tags and 20 x 20 pixels of TFT-active matrix with 10 PPI resolutions to operate e-paper are R2R gravure printed using silver nanoparticle based conducting ink, BaTiO3 nanoparticle based dielectric ink and single walled carbon nanotube based semiconducting ink with poly(ethylenephtalate) (PET) film as a substrate, and their scalability has been studied by optimizing the printing process and the ink formulation to attain 95% of the device yield. Since we are using R2R gravure system including commercially available R2R gravure machine with servomechanism to control the overlay printing registration accuracy of ±20 μm, electronic inks and PET web, this R2R system can be practically employed to manufacture 4 bit NFC tags and 10 PPI levels of TFT-active matrix or any relevant printed TFT based devices. In this presentation, I would like to show the details of R2R gravure system to print 4 bit NFC tag and TFT-active matrix and characterize the electrical properties of consisted R2R printed TFTs in the devices. Furthermore, the fully R2R gravure printed 4-bit NFC tag and e-paper with 10 PPI resolutions will be demonstrated.
저자 Junfeng Sun, 박혜진, 정윤수, Grishmi Rajbhandari, Bijendra Bishow Maskey, Ashish Sapkota, 조규진
소속 순천대
키워드 -
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