Paper Info
Title
A hybrid control scheme for driving current sources of pm-oled panel
Abstract
This paper proposes a new amplitude width modulation (AWM) scheme for PM-OLED (passive matrix organic light emission device) data driver IC. The data driver controls brightness of OLED by adjusting the amplitude and width of the current through OLED. There are two conventional modulation schemes; pulse amplitude modulation (PAM) and pulse width modulation (PWM). The PWM suffers from lower light emitting efficiency at lower luminance levels. The PAM gives us large chip area, due to DACs for each column. The proposed AWM accurately controls the current level using MSB data and increases luminance using LSB data that improves inefficiencies of the PAM and PWM. We fabricated a one channel data driver chip with AWM using a 0.18 um standard CMOS process. The proposed scheme reduces power consumption 50% compared with PWM.
Year
DOI
Venue
2009
10.1109/TCE.2009.5174434
IEEE Trans. Consumer Electronics
Keywords
DocType
Volume
msb data,pulse width modulation,new amplitude width modulation,channel data driver chip,proposed awm,conventional modulation scheme,lsb data,data driver,hybrid control scheme,current source,pulse amplitude modulation,data driver ic,pm-oled panel,amplitude modulation,organic light emitting diodes,lighting,display,driver circuit,chip,brightness,oled,cmos integrated circuits,pixel
Journal
55
Issue
ISSN
Citations 
2
0098-3063
0
PageRank 
References 
Authors
0.34
1
3
Name
Order
Citations
PageRank
Seok-Man Kim101.01
Jehoon Lee2379.61
Kyoung-Rok Cho321731.77