Abrupt Power-Off Detector for Mobile TFT-LCD Driver IC

Abrupt Power-Off Detector for Mobile TFT-LCD Driver IC

A circuit technique to detect unexpected power condition such as battery separation is presented. Abrupt power-off due to this unexpected power condition may cause an abnormal display in mobile TFT-LCD because adequate power-off sequence cannot be performed. To demonstrate feasibility of the APD, te...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Lee, Jae-Goo, Woo, Jae-Hyuck, Lee, Guhn-Sang, Kang, Im-Soo, Kim, Bong-Nam, Kim, Jin-Tae, Kong, Bai-Sun, Jun, Young-Hyun, Lee, Chil-Gee
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Batteries
Capacitors
Detectors
Displays
Driver circuits
Electrodes
Equivalent circuits
Power supplies
Thin film transistors
Voltage
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A circuit technique to detect unexpected power condition such as battery separation is presented. Abrupt power-off due to this unexpected power condition may cause an abnormal display in mobile TFT-LCD because adequate power-off sequence cannot be performed. To demonstrate feasibility of the APD, test chip was designed and fabricated in a 30-V/4-um 5-V/0.8-um 2.5-V/0.25-um triple-well CMOS process. Experimental results show that the proposed APD improves display quality by allowing a proper power-off sequence at all abrupt power-off conditions.
ISSN:1548-3746
1558-3899
DOI:10.1109/MWSCAS.2006.382119