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| Content Provider | IET Digital Library |
|---|---|
| Author | Kang, I. H. Hong, M. T. Bae, B. S. |
| Abstract | Touch-based user identity verification is widely used in smartphones, and fingerprint authentication is the most popular method. The authors developed a capacitive type of fingerprint sensor that uses only one amorphous oxide thin film transistor (TFT) that is integrated into a display screen. To achieve a small sensor area, they removed one bus line from the conventional three bus lines and used only one oxide TFT. The proposed sensor shows good sensitivity. The measured voltage difference between a ridge (touch) and a valley (non-touch) was 5.4 V with an input pulse of 15 V. |
| Starting Page | 1212 |
| Ending Page | 1214 |
| Page Count | 3 |
| ISSN | 00135194 |
| Volume Number | 54 |
| e-ISSN | 1350911X |
| Issue Number | Issue 21, Oct (2018) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/el/54/21 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/el.2018.5189 |
| Journal | Electronics Letters |
| Publisher Date | 2018-09-12 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Amorphous Oxide Thin Film Transistor Bus Line Capacitance Measurement Capacitive Sensor Capacitive Sensor Pixel Circuit Display Screen Display Technology Field Effect Device Fingerprint Authentication Fingerprint Sensor Impedance And Admittance Measurement Screens (display) Sensing Device And Transducers Smartphone Tactile Sonsor TFT Thin Film Transistors Touch-based User Identity Verification Touch-fingerprint Recognition Sensor Voltage 15.0 V Voltage 5.4 V Voltage Difference Measurement Voltage Measurement |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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