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1. 发明授权

US07492106B2 Inverter circuit, backlight assembly, liquid crystal display having the same, and method thereof 有权
标题翻译：逆变器电路，背光组件，具有相同的液晶显示器及其方法
公开(公告)号：US07492106B2
公开(公告)日：2009-02-17
申请号：US11520913
申请日：2006-09-14
申请人： Osamu Sengoku , Takashi Kinoshita , Tatsuhisa Shimura
发明人： Osamu Sengoku , Takashi Kinoshita , Tatsuhisa Shimura
IPC分类号： H05B37/00
CPC分类号： H05B41/2822
摘要： A backlight assembly prevents abnormal discharge of a device using a high voltage to drive a discharge tube such as CCFL. An inverter circuit includes an inverter transformer supplying an AC high voltage to a plurality of discharge tubes, and a plurality of balance transformers. First terminals of primary coils of the balance transformers are connected to the discharge tubes, and second terminals of the primary coils are connected to a ground. Secondary coils of the balance transformers are connected in series to form a loop. A resistor has a first terminal connected to the loop and a second terminal connected to the ground. Accordingly, the backlight assembly may detect a high-voltage abnormal discharge such as a corona discharge, an arc discharge or the like.
摘要翻译：背光组件防止使用高电压的装置的异常放电以驱动诸如CCFL的放电管。逆变器电路包括向多个放电管提供交流高电压的逆变器变压器和多个平衡变压器。平衡变压器的初级线圈的第一端子连接到放电管，并且初级线圈的第二端子连接到地。平衡变压器的二次线圈串联连接形成回路。电阻器具有连接到环路的第一端子和连接到地的第二端子。因此，背光组件可以检测诸如电晕放电，电弧放电等的高电压异常放电。

2. 发明授权

US07723996B2 Inverter circuit and backlight assembly having the same 有权
标题翻译：逆变器电路和背光组件具有相同的功能
公开(公告)号：US07723996B2
公开(公告)日：2010-05-25
申请号：US11864616
申请日：2007-09-28
申请人： Yun-Gun Lee , Jin-Won Jang , Tatsuhisa Shimura , Osamu Sengoku
发明人： Yun-Gun Lee , Jin-Won Jang , Tatsuhisa Shimura , Osamu Sengoku
IPC分类号： G01R31/02
CPC分类号： H05B41/2822 , H05B41/2855
摘要： An inverter circuit includes plural pairs of third coils, in which adjacent third coils are serially connected to each other so as to offset AC voltage generated from the paired third coils, one end of the paired third coils being connected to ground. Input terminals of plural diodes are connected to one end of the paired third coils so as to generate the voltage detection value by detecting voltage generated from the paired third coils. A fault detector compares the voltage detection value generated from the diodes with a predetermined threshold value to detect a fault and generates the comparison result.
摘要翻译：逆变器电路包括多对第三线圈，其中相邻的第三线圈彼此串联连接以便偏移从成对的第三线圈产生的AC电压，所述成对的第三线圈的一端连接到地。多个二极管的输入端子连接到成对的第三线圈的一端，以便通过检测从成对的第三线圈产生的电压来产生电压检测值。故障检测器将从二极管产生的电压检测值与预定阈值进行比较，以检测故障并产生比较结果。

3. 发明授权

US07477023B2 Inverter circuit and backlight assembly having the same 有权
标题翻译：逆变器电路和背光组件具有相同的功能
公开(公告)号：US07477023B2
公开(公告)日：2009-01-13
申请号：US11851743
申请日：2007-09-07
申请人： Tatsuhisa Shimura , Osamu Sengoku
发明人： Tatsuhisa Shimura , Osamu Sengoku
IPC分类号： H05B41/16
CPC分类号： H05B41/2822
摘要： An inverter circuit includes a power supply which outputs an alternating current voltage, an inverter transformer having one primary coil connected to an output terminal of the power supply and pairs of secondary coils which supply an alternating current high voltage, induced by the one primary coil, to pairs of discharge tubes and a plurality of balance transformers having primary coils serially connected between respective pairs of the pairs of secondary coils of the inverter transformer, and having secondary coils corresponding to the primary coils of the plurality of balance transformers, wherein the secondary coils of the plurality of balance transformers are serially connected to form a loop.
摘要翻译：逆变器电路包括输出交流电压的电源，具有连接到电源的输出端的一个初级线圈的逆变器变压器和由一个初级线圈感应的提供交流高压的次级线圈对，成对放电管和多个平衡变压器，其具有串联连接在逆变器变压器的各对次级线圈对之间的初级线圈，并且具有对应于多个平衡变压器的初级线圈的次级线圈，其中次级线圈多个平衡变压器串联连接形成回路。

4. 发明授权

US07402957B2 Inverter circuit, backlight assembly, and liquid crystal display with backlight assembly 失效
标题翻译：逆变电路，背光组件和带背光组件的液晶显示器
公开(公告)号：US07402957B2
公开(公告)日：2008-07-22
申请号：US11521884
申请日：2006-09-15
申请人： Tatsuhisa Shimura , Takashi Kinoshita , Osamu Sengoku
发明人： Tatsuhisa Shimura , Takashi Kinoshita , Osamu Sengoku
IPC分类号： H05B37/00
CPC分类号： H05B41/2822
摘要： In an inverter circuit, inverter transformers supply AC voltage to discharge tubes. The inverter transformers are arranged such that the AC voltage at a respective first terminal of each secondary coil has an opposite polarity with respect to a corresponding second terminal of each secondary coil. Balance transformers have primary coils inserted in series between a reference terminal of the secondary coils of the inverter transformers and ground. The secondary coils of the balance transformers are connected in series to form a loop. One node of the loop is grounded and a voltage detection node is located on the loop. At least one secondary coil of the secondary coils of the balance transformers is interposed between the grounded node of the loop and the voltage detection node. Thus, an abnormal state or condition, such as an open circuit or a short circuit may be detected.
摘要翻译：在逆变电路中，逆变变压器为交流电压提供放电管。逆变器变压器被布置成使得每个次级线圈的相应的第一端子处的AC电压相对于每个次级线圈的对应的第二端子具有相反的极性。平衡变压器具有串联插入在逆变器变压器的次级线圈的参考端和地之间的初级线圈。平衡变压器的次级线圈串联连接形成一个回路。回路的一个节点接地，电压检测节点位于回路上。平衡变压器的次级线圈的至少一个次级线圈插入在环路的接地节点和电压检测节点之间。因此，可以检测到诸如开路或短路的异常状态或状况。

5. 发明申请

US20070109817A1 Inverter circuit 有权
标题翻译：逆变电路
公开(公告)号：US20070109817A1
公开(公告)日：2007-05-17
申请号：US11450770
申请日：2006-06-09
申请人： Tatsuhisa Shimura , Takashi Kinoshita , Osamu Sengoku
发明人： Tatsuhisa Shimura , Takashi Kinoshita , Osamu Sengoku
IPC分类号： H02M3/335
CPC分类号： H02M7/538 , H02M1/08 , H03K17/691 , H05B41/2828
摘要： An inverter circuit includes a first driving transformer, a second driving transformer, a power voltage circuit, a high-side FET connected to a secondary winding of the first driving transformer, a low-side FET connected to a secondary winding of the second driving transformer and an inverter transformer connected to a driving node between the high-side FET and the low-side FET. Thus, a direct current path does not exist between a gate of the high-side FET and the driving node, so that a gate voltage of the high-side FET is biased more to a negative polarity.
摘要翻译：逆变器电路包括第一驱动变压器，第二驱动变压器，电源电压电路，连接到第一驱动变压器的次级绕组的高侧FET，连接到第二驱动变压器的次级绕组的低侧FET 以及连接到高侧FET和低侧FET之间的驱动节点的逆变器变压器。因此，在高侧FET的栅极和驱动节点之间不存在直流路径，使得高侧FET的栅极电压被更多地偏置为负极性。

6. 发明申请

US20070108917A1 Inverter circuit, backlight and liquid crystal display 有权
标题翻译：逆变电路，背光和液晶显示
公开(公告)号：US20070108917A1
公开(公告)日：2007-05-17
申请号：US11501415
申请日：2006-08-09
申请人： Osamu Sengoku , Takashi Kinoshita , Tatsuhisa Shimura
发明人： Osamu Sengoku , Takashi Kinoshita , Tatsuhisa Shimura
IPC分类号： H05B41/24
CPC分类号： H05B41/282 , Y02B20/183
摘要： An inverter circuit includes an inverter transformer to supply AC high voltages of opposite phases, and a plurality of balance transformers. The inverter transformer supplies AC high voltages of same phases to every n number of CCFLs, and the CCFLs are connected in series to primary windings of the balance transformers at every two CCFLs. Also, secondary windings of the balance transformers are connected in series to form a closed loop. Thus, an inverter circuit may realized for a large-sized backlight without increasing a number of the balance transformers.
摘要翻译：逆变器电路包括用于提供相反相位的交流高电压的逆变器变压器和多个平衡变压器。逆变器变压器为每n个CCFL提供相同相位的交流高电压，并且CCFL每隔两个CCFL串联连接到天平变压器的初级绕组。而且，平衡变压器的次级绕组串联连接以形成闭环。因此，在不增加多个平衡变压器的情况下，可以实现用于大尺寸背光的逆变器电路。

7. 发明授权

US08686650B2 LED backlight device 有权
标题翻译： LED背光装置
公开(公告)号：US08686650B2
公开(公告)日：2014-04-01
申请号：US13291720
申请日：2011-11-08
申请人： Tatsuhisa Shimura
发明人： Tatsuhisa Shimura
IPC分类号： H05B37/02
CPC分类号： H05B33/0827
摘要： An LED backlight device includes an inverter having an input connected to a DC power supply to provide an output AC current. A plurality of transformers are each configured to drop AC current input from the inverter. Input sides of the transformers are connected in series to an output of the inverter and output sides of the transformers are disposed in parallel. A plurality of full-wave rectification circuits are respectively connected to the output sides of the transformers and full-wave rectify the dropped AC currents, respectively. A plurality of smoothing circuits are respectively connected to outputs of the full-wave rectification circuits, and are configured to smooth the full-wave rectified currents to output DC currents, respectively. A plurality of LED strings are respectively connected to the outputs of the smoothing circuits and each of the LED strings have a plurality of LEDs.
摘要翻译： LED背光装置包括具有连接到DC电源的输入端以提供输出AC电流的反相器。多个变压器各自被配置为丢弃从逆变器输入的交流电流。变压器的输入侧与变频器的输出端串联连接，变压器的输出侧并列配置。多个全波整流电路分别连接到变压器的输出侧，并分别对掉落的交流电进行全波整流。多个平滑电路分别连接到全波整流电路的输出，并且被配置为平滑全波整流以分别输出直流电流。多个LED串分别连接到平滑电路的输出，并且每个LED串具有多个LED。

8. 发明授权

US08139019B2 Brightness adjusting device and liquid crystal display having the same 有权
标题翻译：亮度调节装置和具有相同的液晶显示器
公开(公告)号：US08139019B2
公开(公告)日：2012-03-20
申请号：US11853631
申请日：2007-09-11
申请人： Song-Yi Han , Tatsuhisa Shimura , Osamu Sengoku
发明人： Song-Yi Han , Tatsuhisa Shimura , Osamu Sengoku
IPC分类号： G09G3/36
CPC分类号： H05B41/3927
摘要： A brightness adjusting device includes a multiplication circuit, which multiplies a vertical signal by a predetermined multiplication ratio to output a multiplication signal, a differential circuit that distinguishes between different multiplication signals, a serrated wave generator that charges/discharges a condenser according to a signal output from the differential circuit and generates a serrated wave having constant amplitude independently of a frequency of the multiplication signal, a brightness adjusting voltage generator that generates a reference voltage to determine a pulse duty, and a comparator that outputs a pulse signal by comparing a voltage of the serrated wave with the brightness adjusting voltage. The brightness adjusting voltage generator includes a circuit that outputs a variable voltage, and the multiplication circuit includes a circuit having a variable multiplication ratio.
摘要翻译：亮度调节装置包括乘法电路，该乘法电路将垂直信号乘以预定乘法比率以输出乘法信号，区分不同乘法信号的差分电路，根据信号输出对冷凝器进行充放电的锯齿波发生器从所述差分电路产生与所述乘法信号的频率无关的具有恒定幅度的锯齿波，生成参考电压以确定脉冲占空比的亮度调节电压发生器，以及比较器，通过比较所述脉冲占空比的电压锯齿波具有亮度调节电压。亮度调节电压发生器包括输出可变电压的电路，并且乘法电路包括具有可变倍率的电路。

9. 发明授权

US08030858B2 Inverter circuit, backlight device and liquid crystal display having the same 有权
标题翻译：逆变器电路，背光装置和具有相同的液晶显示器
公开(公告)号：US08030858B2
公开(公告)日：2011-10-04
申请号：US12262396
申请日：2008-10-31
申请人： Min-Soo Choi , Osamu Sengoku , Tatsuhisa Shimura
发明人： Min-Soo Choi , Osamu Sengoku , Tatsuhisa Shimura
IPC分类号： H05B37/00 , H05B39/00 , H05B41/00
CPC分类号： H05B41/282 , H05B41/2855 , Y02B20/183
摘要： An inverter circuit for a backlight device includes an inverter transformer which supplies a high AC voltage to a plurality of discharge tubes, a filter circuit connected to an output terminal of the inverter transformer, and an abnormal discharge detection circuit. The filter circuit passes a current signal having a high frequency component of the high AC voltage to the abnormal discharge detection circuit, and the abnormal discharge detection circuit detects an abnormal discharge current based on the current signal.
摘要翻译：用于背光装置的逆变器电路包括向多个放电管提供高AC电压的逆变器变压器，连接到逆变器变压器的输出端子的滤波器电路和异常放电检测电路。滤波器电路将具有高交流电压的高频分量的电流信号传送到异常放电检测电路，异常放电检测电路根据电流信号检测异常放电电流。

10. 发明申请

US20070126370A1 Inverter circuit, backlight assembly, and liquid crystal display with backlight assembly 失效
标题翻译：逆变电路，背光组件和带背光组件的液晶显示器
公开(公告)号：US20070126370A1
公开(公告)日：2007-06-07
申请号：US11521111
申请日：2006-09-14
申请人： Tatsuhisa Shimura , Takashi Kinoshita
发明人： Tatsuhisa Shimura , Takashi Kinoshita
IPC分类号： H05B41/24
CPC分类号： H05B41/2822 , H05B41/245
摘要： In an inverter circuit for a backlight assembly, a first sinusoidal voltage and a second sinusoidal voltage having an opposite polarity to that of the first sinusoidal voltage are applied across terminals of 2n CCFLs. Each of respective primary coils of n first balance transformers are connected in series with corresponding first terminals of a first set of n CCFLs from the 2n CCFLs. Each of respective primary coils of n second balance transformers are connected in series with corresponding first terminals of a second set of n CCFLs from the 2n CCFLs. The secondary coils of the first balance transformers and the secondary coils of the second balance transformers are connected in series with each other to form a loop. Accordingly, the backlight assembly makes it easy to troubleshoot a failure in the CCFLs.
摘要翻译：在用于背光组件的逆变器电路中，在2n个CCFL的端子之间施加具有与第一正弦电压相反极性的第一正弦电压和第二正弦电压。 n个第一平衡变压器的各个初级线圈中的每一个与来自2n CCFL的第一组n CCFL的相应的第一端串联连接。 n个第二平衡变压器的各个初级线圈中的每一个与来自2n CCFL的第二组n CCFL的相应的第一端串联连接。第一平衡变压器的次级线圈和第二平衡变压器的次级线圈彼此串联连接以形成环路。因此，背光组件使得易于排除CCFL中的故障。

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