TY - GEN
T1 - Integrated ambient light sensor on a LED driver chip
AU - Wu, Jian Fu
AU - Wei, Chia-Ling
AU - Hsieh, Yuan Ta
AU - Fang, Chiao Li
AU - Tsai, Hann Huei
AU - Juang, Ying Zong
PY - 2011/12/1
Y1 - 2011/12/1
N2 - This paper presents a boost-type light-emitting-diode (LED) driver with an on-chip ambient light dimming for the liquid crystal display (LCD) backlight module in portable electronics. The proposed system integrates an ambient light sensor (ALS) to achieve the function of dimming control. By sensing the surrounding illumination, the LED driver automatically regulates the LED current, and, hence, the power dissipation of LED backlight module can be effectively reduced. As a result, the battery life can be extended.
AB - This paper presents a boost-type light-emitting-diode (LED) driver with an on-chip ambient light dimming for the liquid crystal display (LCD) backlight module in portable electronics. The proposed system integrates an ambient light sensor (ALS) to achieve the function of dimming control. By sensing the surrounding illumination, the LED driver automatically regulates the LED current, and, hence, the power dissipation of LED backlight module can be effectively reduced. As a result, the battery life can be extended.
UR - http://www.scopus.com/inward/record.url?scp=84863167445&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84863167445&partnerID=8YFLogxK
U2 - 10.1109/PEDS.2011.6147368
DO - 10.1109/PEDS.2011.6147368
M3 - Conference contribution
AN - SCOPUS:84863167445
SN - 9781612849997
T3 - Proceedings of the International Conference on Power Electronics and Drive Systems
SP - 944
EP - 947
BT - 2011 IEEE 9th International Conference on Power Electronics and Drive Systems, PEDS 2011
T2 - 2011 IEEE 9th International Conference on Power Electronics and Drive Systems, PEDS 2011
Y2 - 5 December 2011 through 8 December 2011
ER -