Open AccessBCD to 7‐segment decoder with oxide thin film transistors
Author(s) -
Hwang J.Y.,
Kim J.K.,
Moon S.J.,
Hong M.T.,
Yun E.J.,
Bae B.S.
Publication year - 2016
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2016.0803
Subject(s) - thin film transistor , transistor , binary number , materials science , computer science , voltage , decimal , decoding methods , computer hardware , optoelectronics , electrical engineering , electronic engineering , engineering , algorithm , arithmetic , nanotechnology , mathematics , layer (electronics)
Binary coded decimal (BCD) to 7‐segment decoder with oxide thin film transistors (TFTs) was implemented on a glass to display 7‐segment display from BCD. The developed BCD to the 7‐segment decoder with indium–gallium–zinc oxide thin film transistors was verified up to 1 kHz operation frequency under the power supply voltage of 5 V, and converted successfully 4‐bit binary input code to 7‐segment inputs. The binary output voltages were 0.4 V for the low and 4.1 V for the high at an operation frequency of 500 Hz, respectively. The output signals of the developed 7‐segment decoder matched well the BCD to the decimal values. The result showed that oxide TFT can be used for the integrated BCD to 7‐segment decoder for the various sensing applications, particularly for wearable devices and the integrated bio sensing platform.