Power test method for LED backlight LCD TVs and software development  

作　　者：刘臻 张建华 

机构地区：[1]School of Mechatronics Engineering and Automation,Shanghai University [2]Key Laboratory of Advanced Display and System Application (Shanghai University),Ministry of Education

出　　处：《Journal of Shanghai University(English Edition)》2011年第4期267-271,共5页上海大学学报（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant No.60871030);the Shanghai Leading Academic Discipline Project(Grant No.S30108)

摘　　要：As the appearance of local dimming technique, the current existing test methods are not suitable for testing the power consumption of the LCD TVs using the local dimming technique any longer. A test method appropriate to LED backlight LCD TVs using the local dimming technique is proposed in this paper, and then the test software is developed. The results demonstrate that the test software developed can show the real average power consumption of the LCD using local dimming technique, and by normalization the power consumption become comparable for not only local dimming LCD TVs but global dimming LCD TVs. Using the software developed in this paper, the ratio of power saving is clear when an LCD TV using the local dimming technique compared with one without local dimming technique.As the appearance of local dimming technique, the current existing test methods are not suitable for testing the power consumption of the LCD TVs using the local dimming technique any longer. A test method appropriate to LED backlight LCD TVs using the local dimming technique is proposed in this paper, and then the test software is developed. The results demonstrate that the test software developed can show the real average power consumption of the LCD using local dimming technique, and by normalization the power consumption become comparable for not only local dimming LCD TVs but global dimming LCD TVs. Using the software developed in this paper, the ratio of power saving is clear when an LCD TV using the local dimming technique compared with one without local dimming technique.

关 键 词：local dimming global dimming power consumption test comparison 

分 类 号：TN873.93[电子电信—信息与通信工程]