公开(公告)号：US08917230B2

公开(公告)日：2014-12-23

申请号：US12909239

申请日：2010-10-21

申请人： Ho-Sik Shin ,  Seokhyun Nam ,  Young-Min Park ,  Yu-Dong Kim ,  Jung-Hyun Yang

发明人： Ho-Sik Shin ,  Seokhyun Nam ,  Young-Min Park ,  Yu-Dong Kim ,  Jung-Hyun Yang

IPC分类号： G09G3/36 ,  H05B33/08

CPC分类号： H05B33/0851 ,  H05B33/0815

摘要： A backlight assembly includes; a plurality of light source strings which receive a driving voltage to generate a light, a driving circuit including a channel terminal commonly connected to output terminals of the plurality of light source strings and which receives a feedback voltage through the channel terminal to control the driving voltage according to the feedback voltage, and a current detection circuit connected to the output terminals of the plurality of light source strings to receive currents from the plurality of light source strings and which turns off the driving circuit when at least one of the received currents is larger than a predetermined reference current.

摘要翻译： 背光组件包括： 多个光源串，其接收用于产生光的驱动电压;驱动电路，包括共同连接到所述多个光源串的输出端的通道端子，并且通过所述通道端子接收反馈电压以控制所述驱动电压 以及连接到所述多个光源串的输出端的电流检测电路，以接收来自所述多个光源串的电流，并且当所述接收电流中的至少一个较大时，所述电流检测电路截止所述驱动电路 比预定的参考电流。

公开(公告)号：US20110181625A1

公开(公告)日：2011-07-28

申请号：US12909239

申请日：2010-10-21

申请人： Ho-Sik SHIN ,  Seokhyun NAM ,  Young-Min PARK ,  Yu-Dong KIM ,  Jung-Hyun YANG

发明人： Ho-Sik SHIN ,  Seokhyun NAM ,  Young-Min PARK ,  Yu-Dong KIM ,  Jung-Hyun YANG

IPC分类号： G09G5/10 ,  H05B37/02 ,  H05B37/04

CPC分类号： H05B33/0851 ,  H05B33/0815

摘要： A backlight assembly includes; a plurality of light source strings which receive a driving voltage to generate a light, a driving circuit including a channel terminal commonly connected to output terminals of the plurality of light source strings and which receives a feedback voltage through the channel terminal to control the driving voltage according to the feedback voltage, and a current detection circuit connected to the output terminals of the plurality of light source strings to receive currents from the plurality of light source strings and which turns off the driving circuit when at least one of the received currents is larger than a predetermined reference current.

摘要翻译： 背光组件包括： 多个光源串，其接收用于产生光的驱动电压;驱动电路，包括共同连接到所述多个光源串的输出端的通道端子，并且通过所述通道端子接收反馈电压以控制所述驱动电压 以及连接到所述多个光源串的输出端的电流检测电路，以接收来自所述多个光源串的电流，并且当所述接收电流中的至少一个较大时，所述电流检测电路截止所述驱动电路 比预定的参考电流。

公开(公告)号：US20120153853A1

公开(公告)日：2012-06-21

申请号：US13172983

申请日：2011-06-30

申请人： BYOUNG DAE YE ,  Sang-Chul Byun ,  Jung-Hyun Yang

发明人： BYOUNG DAE YE ,  Sang-Chul Byun ,  Jung-Hyun Yang

IPC分类号： H05B37/00

CPC分类号： H05B33/0827

摘要： A backlight unit includes a driving circuit outputting a driving voltage, light source strings, a first feedback circuit, a first current control circuit, a second feedback circuit, and a second current control circuit. Each light source string includes light sources and receives the driving voltage to generate light. The first feedback circuit outputs a first control signal based on a measured current at input terminals of the light source strings. The first current control circuit receives the driving voltage and controls a strength of the current input at the input terminals based on the first control signal. The second feedback circuit outputs a second control signal based on a measured current at each output terminal of the light source strings. The second current control circuit controls a strength of a current output at each output terminal of the light source strings.

摘要翻译： 背光单元包括输出驱动电压的驱动电路，光源串，第一反馈电路，第一电流控制电路，第二反馈电路和第二电流控制电路。 每个光源串包括光源并接收驱动电压以产生光。 第一反馈电路基于光源串的输入端子处的测量电流输出第一控制信号。 第一电流控制电路基于第一控制信号接收驱动电压并控制输入端的电流输入的强度。 第二反馈电路基于光源串的每个输出端子处的测量电流输出第二控制信号。 第二电流控制电路控制在光源串的每个输出端子处的电流输出的强度。