DocumentCode :
1504274
Title :
A PDM-Based Digital Driving Technique Using Delta-Sigma ( 
) Modulation for QVGA Full-Color AMOLED Display Applications
Author :
Jang, Jae Hyuk ; Kwon, Minho ; Tjandranegara, Edwin ; Lee, Kwyro ; Jung, Byunghoo
Author_Institution :
Dept. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA
Volume :
6
Issue :
7
fYear :
2010
fDate :
7/1/2010 12:00:00 AM
Firstpage :
269
Lastpage :
278
Abstract :
We propose a digital driving technique using pulse-density modulation (PDM) for an active-matrix organic light-emitting diode (AMOLED) to effectively suppress the false image contour in conventional pulsewidth modulation (PWM) while achieving considerably low operating frequency. A compact first-order digital ΔΣ modulator provides the PDM signal to the panel. A 2.2-inch QVGA AMOLED system using the proposed technique shows no false image contour problem while allowing relaxed minimum gate scan time.
Keywords :
data compression; delta-sigma modulation; organic light emitting diodes; pulse width modulation; QVGA full-color AMOLED display; active-matrix organic light-emitting diode; delta-sigma modulation; digital driving technique; false image contour; first-order digital Δspl Sigma/ modulator; pulse-density modulation; pulsewidth modulation; Active matrix organic light emitting diodes; Delta modulation; Digital modulation; Driver circuits; Flat panel displays; Organic light emitting diodes; Pulse width modulation; Space vector pulse width modulation; Thin film transistors; Voltage; $Delta Sigma$
fLanguage :
English
Journal_Title :
Display Technology, Journal of
Publisher :
ieee
ISSN :
1551-319X
Type :
jour
DOI :
10.1109/JDT.2010.2048698
Filename :
5473165
Link To Document :
