公开(公告)号：US08169390B2

公开(公告)日：2012-05-01

申请号：US12011779

申请日：2008-01-28

申请人： Moon-Shik Kang ,  Inn-Sung Lee ,  Song-Yi Han

发明人： Moon-Shik Kang ,  Inn-Sung Lee ,  Song-Yi Han

IPC分类号： G09G3/36

CPC分类号： G09G3/3406 ,  G02F1/133604 ,  G09G3/3648 ,  G09G2320/0261 ,  G09G2320/0285 ,  G09G2320/0633 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2330/02 ,  G09G2360/16

摘要： The present invention relates to a method of controlling luminance of a backlight based on a processed image data after receiving information of image data, in order to improve the visibility of moving picture. An inverter according to the present invention includes a first block generating a first luminance control signal with an analog value depending on the luminance control signal with a duty ratio depending on a synchronization signal. The luminance control signals generated by the respective blocks are synthesized luminance control signal. Accordingly, a liquid crystal display employing two backlight control methods can be provided. Thus, it is possible to remove the drag phenomenon of a screen and, at the same time, to improve the visibility for moving picture.

摘要翻译： 本发明涉及一种在接收到图像数据的信息之后基于经处理的图像数据控制背光的亮度的方法，以便提高运动图像的可视性。 根据本发明的逆变器包括：第一块，其根据具有取决于同步信号的占空比的亮度控制信号产生具有模拟值的第一亮度控制信号。 由各个块产生的亮度控制信号是合成亮度控制信号。 因此，可以提供采用两种背光控制方法的液晶显示器。 因此，可以消除屏幕的拖动现象，并且同时提高运动图像的可视性。

公开(公告)号：US07324077B2

公开(公告)日：2008-01-29

申请号：US10521731

申请日：2002-09-18

申请人： Moon-Shik Kang ,  Inn-Sung Lee ,  Song-Yi Han

发明人： Moon-Shik Kang ,  Inn-Sung Lee ,  Song-Yi Han

IPC分类号： G09G3/36

CPC分类号： G09G3/3406 ,  G02F1/133604 ,  G09G3/3648 ,  G09G2320/0261 ,  G09G2320/0285 ,  G09G2320/0633 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2330/02 ,  G09G2360/16

摘要： The present invention relates to a method of controlling luminance of a backlight based on a processed image data after receiving information of image data, in order to improve the visibility of moving picture. An inverter according to the present invention includes a first block generating a first luminance control signal with an analog value depending on the luminance control signal with a duty ratio depending on a synchronization signal. The luminance control signals generated by the respective blocks are synthesized luminance control signal. Accordingly, a liquid crystal display employing two backlight control methods can be provided. Thus, it is possible to remove the drag phenomenon of a screen and, at the same time, to improve the visibility for moving picture.

摘要翻译： 本发明涉及一种在接收到图像数据的信息之后基于经处理的图像数据控制背光的亮度的方法，以便提高运动图像的可视性。 根据本发明的逆变器包括：第一块，其根据具有取决于同步信号的占空比的亮度控制信号产生具有模拟值的第一亮度控制信号。 由各个块产生的亮度控制信号是合成亮度控制信号。 因此，可以提供采用两种背光控制方法的液晶显示器。 因此，可以消除屏幕的拖动现象，并且同时提高运动图像的可视性。

公开(公告)号：US07319600B2

公开(公告)日：2008-01-15

申请号：US10479814

申请日：2002-06-10

申请人： Inn-Sung Lee ,  Moon-Shik Kang ,  Song-Yi Han

发明人： Inn-Sung Lee ,  Moon-Shik Kang ,  Song-Yi Han

IPC分类号： H02M3/335 ,  H02M5/40

CPC分类号： H02M1/4225 ,  G09G3/3406 ,  G09G3/36 ,  G09G2330/02 ,  H02M5/458 ,  H02M2001/007 ,  H02M2001/009 ,  H05B41/2822 ,  Y02B70/126 ,  Y10T307/406

摘要： Disclosed are a power supplying apparatus and a LCD having the same that reduces manufacturing cost of a large-scale LCD module and enhances powpower efficiency by integrating an external dc power supply used in a large-scale LCD panel into a LCD panel. A first voltage converter converts an external ac voltage into a first dc voltage, and changes a voltage level of the first de voltage into a second dc voltage having a highr voltage level than that of the first de voltage. A second voltage converter converts the second dc voltage into an ac voltage, raises a voltage level of the converted ac voltage, and provides the raised ac voltage to a load. A current detector detects a current flowing through the load, and provides a current detection signal as a feedback signal to the first voltage converter so that the first voltage provide a constant direct current output voltage.

摘要翻译： 本发明公开了一种通过将大型LCD面板中使用的外部直流电源集成到LCD面板中而降低大型LCD模块的制造成本并提高功率效率的电力供给装置和LCD。 第一电压转换器将外部交流电压转换为第一直流电压，并将第一电压的电压电平改变为具有比第一电压高的电压电平的第二直流电压。 第二电压转换器将第二直流电压转换为交流电压，提高转换交流电压的电压电平，并将升高的交流电压提供给负载。 电流检测器检测流过负载的电流，并将电流检测信号作为反馈信号提供给第一电压转换器，使得第一电压提供恒定的直流输出电压。

公开(公告)号：US07145546B2

公开(公告)日：2006-12-05

申请号：US10606015

申请日：2003-06-24

申请人： Moon-Shik Kang ,  Inn-Sung Lee ,  Song-Yi Han

发明人： Moon-Shik Kang ,  Inn-Sung Lee ,  Song-Yi Han

IPC分类号： G09G3/36

CPC分类号： G09G3/36 ,  G09G3/2014 ,  G09G3/3406 ,  G09G2310/0235 ,  G09G2320/0606 ,  G09G2320/0626 ,  G09G2320/064

摘要： An apparatus of driving a light source for a display device includes a switching unit for selectively transmitting a DC input voltage, an oscillator for converting the DC input voltage into an AC voltage, and a transformer including a primary coil and a secondary coil for boosting the converted AC voltage using mutual inductance and for providing the boosted voltage for the light source. The driving apparatus further includes a current sensor for sensing a current in the oscillator or the secondary coil, and a light controller for controlling the switching unit based on the sensed current by the current sensor and a dimming control signal from an external device. Therefore, the current in the light source can be detected without a separate wire for connecting the light source and the light controller.

摘要翻译： 用于驱动显示装置的光源的装置包括用于选择性地传输DC输入电压的开关单元，用于将DC输入电压转换为AC电压的振荡器，以及包括初级线圈和次级线圈的变压器，用于升压 使用互感转换交流电压，并为光源提供升压电压。 驱动装置还包括用于感测振荡器或次级线圈中的电流的电流传感器，以及基于由电流传感器检测的电流和来自外部设备的调光控制信号来控制开关单元的光控制器。 因此，可以不用单独的线检测光源中的电流，用于连接光源和光控制器。

公开(公告)号：US06947024B2

公开(公告)日：2005-09-20

申请号：US10273837

申请日：2002-10-18

申请人： Inn-Sung Lee ,  Moon-Shik Kang ,  Song-Yi Han

发明人： Inn-Sung Lee ,  Moon-Shik Kang ,  Song-Yi Han

IPC分类号： G02F1/13357 ,  G02F1/133 ,  G09G3/34 ,  H05B41/24 ,  H05B41/282 ,  H05B41/285 ,  G09G3/36

CPC分类号： H05B41/2858 ,  G02F2001/133612 ,  Y02B20/186

摘要： Disclosed is a liquid crystal display device having a lamp driving apparatus for preventing lamps from being damaged due to electric current variation among the lamps. A DC/DC converter converts an externally provided DC voltage input into a converted DC voltage signal having a predetermined voltage level. A DC/AC inverter inverts the converted DC voltage signal into an AC voltage signal to supply the inverted AC voltage signal to an input terminal of a lamp. A power controller detects electric current flowing the lamp at an output terminal of the lamp to control the level of the inverted AC voltage signal output from the DC/AC inverter and bypasses a part of electric current applied to the input terminal of the lamp when a level of the detected electric current is higher than a predetermined threshold value. Therefore, when the level of the electric current flowing through the lamp exceeds the predetermined threshold value, the power controller bypasses the part of the electric current supplied to the lamp to the ground, thereby decreasing the amount of the electric current supplied to the lamp and preventing the lamp from being damaged.

摘要翻译： 公开了一种具有灯驱动装置的液晶显示装置，用于防止灯由于灯之间的电流变化而被损坏。 DC / DC转换器将外部提供的DC电压输入转换成具有预定电压电平的转换的DC电压信号。 DC / AC逆变器将转换的直流电压信号反相为交流电压信号，将反相交流电压信号提供给灯的输入端。 功率控制器检测在灯的输出端流动灯的电流，以控制从DC / AC逆变器输出的反相AC电压信号的电平，并绕过施加到灯的输入端的电流的一部分，当a 检测电流的电平高于预定阈值。 因此，当流过灯的电流水平超过预定阈值时，功率控制器将提供给灯的电流的一部分旁路到地，从而减少供应给灯的电流量， 防止灯被损坏。

公开(公告)号：US20060050048A1

公开(公告)日：2006-03-09

申请号：US11217006

申请日：2005-08-31

申请人： Inn-Sung Lee ,  Moon-Shik Kang ,  Song-Yi Han

发明人： Inn-Sung Lee ,  Moon-Shik Kang ,  Song-Yi Han

IPC分类号： G09G3/36

CPC分类号： H05B41/2858 ,  G02F2001/133612 ,  Y02B20/186

摘要： Disclosed is a liquid crystal display device having a lamp driving apparatus for preventing lamps from being damaged due to electric current variation among the lamps. A DC/DC converter converts an externally provided DC voltage input into a converted DC voltage signal having a predetermined voltage level. A DC/AC inverter inverts the converted DC voltage signal into an AC voltage signal to supply the inverted AC voltage signal to an input terminal of a lamp. A power controller detects electric current flowing the lamp at an output terminal of the lamp to control the level of the inverted AC voltage signal output from the DC/AC inverter and bypasses a part of electric current applied to the input terminal of the lamp when a level of the detected electric current is higher than a predetermined threshold value. Therefore, when the level of the electric current flowing through the lamp exceeds the predetermined threshold value, the power controller bypasses the part of the electric current supplied to the lamp to the ground, thereby decreasing the amount of the electric current supplied to the lamp and preventing the lamp from being damaged.

公开(公告)号：US08390561B2

公开(公告)日：2013-03-05

申请号：US11217006

申请日：2005-08-31

申请人： Inn-Sung Lee ,  Moon-Shik Kang ,  Song-Yi Han

发明人： Inn-Sung Lee ,  Moon-Shik Kang ,  Song-Yi Han

IPC分类号： G09G3/36

CPC分类号： H05B41/2858 ,  G02F2001/133612 ,  Y02B20/186

摘要： Disclosed is a liquid crystal display device having a lamp driving apparatus for preventing lamps from being damaged due to electric current variation among the lamps. A DC/DC converter converts an externally provided DC voltage input into a converted DC voltage signal having a predetermined voltage level. A DC/AC inverter inverts the converted DC voltage signal into an AC voltage signal to supply the inverted AC voltage signal to an input terminal of a lamp. A power controller detects electric current flowing the lamp at an output terminal of the lamp to control the level of the inverted AC voltage signal output from the DC/AC inverter and bypasses a part of electric current applied to the input terminal of the lamp when a level of the detected electric current is higher than a predetermined threshold value. Therefore, when the level of the electric current flowing through the lamp exceeds the predetermined threshold value, the power controller bypasses the part of the electric current supplied to the lamp to the ground, thereby decreasing the amount of the electric current supplied to the lamp and preventing the lamp from being damaged.

摘要翻译： 公开了一种具有灯驱动装置的液晶显示装置，用于防止灯由于灯之间的电流变化而被损坏。 DC / DC转换器将外部提供的DC电压输入转换成具有预定电压电平的转换的DC电压信号。 DC / AC逆变器将转换的直流电压信号反相为交流电压信号，将反相交流电压信号提供给灯的输入端。 功率控制器检测在灯的输出端流动灯的电流，以控制从DC / AC逆变器输出的反相AC电压信号的电平，并绕过施加到灯的输入端的电流的一部分，当a 检测电流的电平高于预定阈值。 因此，当流过灯的电流水平超过预定阈值时，功率控制器将提供给灯的电流的一部分旁路到地，从而减少供应给灯的电流量， 防止灯被损坏。

公开(公告)号：US20080158267A1

公开(公告)日：2008-07-03

申请号：US12011779

申请日：2008-01-28

申请人： Moon-Shik Kang ,  Inn-Sung Lee ,  Song-Yi Han

发明人： Moon-Shik Kang ,  Inn-Sung Lee ,  Song-Yi Han

IPC分类号： G09G5/10 ,  G09G3/36

CPC分类号： G09G3/3406 ,  G02F1/133604 ,  G09G3/3648 ,  G09G2320/0261 ,  G09G2320/0285 ,  G09G2320/0633 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2330/02 ,  G09G2360/16

摘要： The present invention relates to a method of controlling luminance of a backlight based on a processed image data after receiving information of image data, in order to improve the visibility of moving picture. An inverter according to the present invention includes a first block generating a first luminance control signal with an analog value depending on the luminance control signal with a duty ratio depending on a synchronization signal. The luminance control signals generated by the respective blocks are synthesized luminance control signal. Accordingly, a liquid crystal display employing two backlight control methods can be provided. Thus, it is possible to remove the drag phenomenon of a screen and, at the same time, to improve the visibility for moving picture.

公开(公告)号：US07221345B2

公开(公告)日：2007-05-22

申请号：US10626758

申请日：2003-07-21

申请人： Inn-Sung Lee ,  Moon-Shik Kang ,  Song-Yi Han

发明人： Inn-Sung Lee ,  Moon-Shik Kang ,  Song-Yi Han

IPC分类号： G09G3/36

CPC分类号： H05B41/2851 ,  H05B41/2855

摘要： An apparatus of a light source for a liquid crystal display includes two transformers connected between a driver and respective lamps, and a driving signal from a driver is supplied to the lamps through the transformers. Secondary sides of the transformers are connected to each other, and a node between the transformers works as a neutral point in that loads connected to the transformers are symmetrical. The neutral point moves when the symmetry of the load distribution is broken under abnormal operation such as arc generation due to disconnection of the transformers. The movement of the neutral point increases the voltage at the node between the transformers and the driver is shut down when a voltage divided from the voltage of the node is larger than a reference voltage.

摘要翻译： 用于液晶显示器的光源的装置包括连接在驱动器和各个灯之间的两个变压器，并且来自驱动器的驱动信号通过变压器提供给灯。 变压器的二次侧相互连接，并且变压器之间的节点作为中性点工作，因为连接到变压器的负载是对称的。 当负载分布的对称性在异常操作（例如由于变压器的断开导致的电弧产生）中断时，中性点移动。 中性点的移动增加变压器之间的节点处的电压，并且当从节点的电压分压的电压大于参考电压时，驱动器被关闭。

公开(公告)号：US20060125767A1

公开(公告)日：2006-06-15

申请号：US10521731

申请日：2002-09-18

申请人： Moon-Shik Kang ,  Inn-Sung Lee ,  Song-Yi Han

发明人： Moon-Shik Kang ,  Inn-Sung Lee ,  Song-Yi Han

IPC分类号： G09G3/36

CPC分类号： G09G3/3406 ,  G02F1/133604 ,  G09G3/3648 ,  G09G2320/0261 ,  G09G2320/0285 ,  G09G2320/0633 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2330/02 ,  G09G2360/16

摘要： The present invention relates to a method of controlling luminance of a backlight based on a processed image data after receiving information of image data, in order to improve the visibility of moving picture. An inverter according to the present invention includes a first block generating a first luminance control signal with an analog value depending on the luminance control signal with a duty ratio depending on a synchronization signal. The luminance control signals generated by the respective blocks are synthesized luminance control signal. Accordingly, a liquid crystal display employing two backlight control methods can be provided. Thus, it is possible to remove the drag phenomenon of a screen and, at the same time, to improve the visibility for moving picture.

摘要翻译： 本发明涉及一种在接收到图像数据的信息之后基于经处理的图像数据控制背光的亮度的方法，以便提高运动图像的可视性。 根据本发明的逆变器包括：第一块，其根据具有取决于同步信号的占空比的亮度控制信号产生具有模拟值的第一亮度控制信号。 由各个块产生的亮度控制信号是合成亮度控制信号。 因此，可以提供采用两种背光控制方法的液晶显示器。 因此，可以消除屏幕的拖动现象，并且同时提高运动图像的可视性。