Capacitive Sensor Array for Fingerprint Recognition
| Autor: | Min-Taek Hong, M. K. Jang, Byung Seong Bae, I. H. Kang, Y. E. Jeon, T. Mohammed-Brahim, Emmanuel Jacques, Y. J. Lee, Jong Mo Lee, B. M. Seo |
|---|---|
| Přispěvatelé: | Institut d'Électronique et des Technologies du numéRique (IETR), Université de Nantes (UN)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Ministry of Education, Nantes Université (NU)-Université de Rennes 1 (UR1), Université de Nantes (UN)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Materials science business.industry Capacitive sensing Oxide Hardware_PERFORMANCEANDRELIABILITY Fingerprint recognition Oxide thin-film transistor 01 natural sciences Signal Capacitance [SPI.TRON]Engineering Sciences [physics]/Electronics 010309 optics chemistry.chemical_compound [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI] Sensor array chemistry Thin-film transistor 0103 physical sciences Hardware_INTEGRATEDCIRCUITS Optoelectronics business |
| Popis: | International audience; Touch function is merged into the display for the convenient interfaces between man and machine, particularly in mobile phones. In addition, the fingerprint recognition module is also adopted in mobile phones for the security purpose. In this paper, capacitive sensor arrays of oxide thin film transistors (TFTs) were investigated for fingerprint recognition. For the transparent sensor array, oxide TFT was used and also the transparent indium thin oxide (ITO) electrodes was investigated for 450 X 450 pixel arrays. The simulation results of the sensor array of oxide TFT show that ITO can be used in capacitive pixel sensor arrays to achieve its transparency. The electrode area dependence on the sensing signal was investigated for the various glass thicknesses. The rather thick glass gives much reduced sensing signal and the allowed thickness was lower than 8 mu m, therefore, for the high sensing signals the coating material with enough hardness is necessary for the replacement of the cover glass. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|