scholarly journals Smart Dimming Control Algorithm for Reducing Power Consumption of LED TV Backlight

2014 ◽  
Vol 19 (4) ◽  
pp. 320-326
Author(s):  
Je-Seung Ryu ◽  
Ju-Hee Park ◽  
Seong-Ho Lim ◽  
Tae-Woo Kim
2018 ◽  
Vol 10 (11) ◽  
pp. 4087
Author(s):  
In-Tae Kim ◽  
Yu-Sin Kim ◽  
Hyeonggon Nam ◽  
Taeyon Hwang

This study aims to evaluate the accuracy and energy savings of a daylight responsive dimming system (DRDS) when considering the influence of indirect illuminance. In the case of the existing DRDS, during the calibration process of each luminaire, the other luminaires were turned off to detect the illuminance of both the luminaire and the incoming daylight. However, the work plane illuminance under the luminaires was affected by the indirect illuminance from the other luminaires. The final work plane illuminance would thus be higher than the target illuminance during real system operation. To improve the accuracy and energy savings of the DRDS, an improved dimming control algorithm was applied to the DRDS when considering the influence of indirect illuminance. The real-time power consumption and accuracy of the target illuminance of the DRDS when considering the influence of indirect illuminance in a full-scale mock-up was measured and analyzed (for 23 days, from 22 June to 18 July 2018). As a result, the average accuracy of the target illuminance was 98.9% (SD 0.5%), and the average saving in lighting energy was 77%.


2013 ◽  
Vol 739 ◽  
pp. 423-426
Author(s):  
De Yue Cao ◽  
Yi Zou

This paper briefly explains the advantages of LED and the classification of LED backlight and explores the pattern of LED backlight based on dynamic regional control technology to overcome and improve the inherent problems of LCD TV monitor on purpose of reducing power consumption and saving energy.


Author(s):  
Alexander Chatzigeorgiou ◽  
Spiridon Nikolaidis

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