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1. 发明授权

US08643587B2 Field sequential color mode liquid crystal display 有权
标题翻译：现场顺序彩色模式液晶显示
公开(公告)号：US08643587B2
公开(公告)日：2014-02-04
申请号：US11566505
申请日：2006-12-04
申请人： Chang Woo Ha , Byoung Own Min , Jeong In Cheon , Yu Jin Jang
发明人： Chang Woo Ha , Byoung Own Min , Jeong In Cheon , Yu Jin Jang
IPC分类号： G09G3/36
CPC分类号： G09G3/3413 , G09G2310/0235 , G09G2320/064 , H05B33/0818 , Y02B20/347
摘要： In an FSC mode LCD, a controller operates in response to an external adjustment, and a DC/DC converter converts a battery voltage into a driving voltage under control of the controller. A color LED backlight includes first, second and third color LED arrays connected in parallel, which are operated by the driving voltage. An FSC generator generates first, second and third color PWM signals according to an internal sawtooth voltage and a dimming voltage. A 3-channel current source generates first, second and third driving currents under control of the controller, and on/off switches paths of the first, second and third driving currents flowing through the first, second and third color LED arrays according to the first, second and third color PWM signals generated from the FSC generator, thereby adjusting luminance of the first, second and third color LED arrays of the color LED backlight.
摘要翻译：在FSC模式LCD中，控制器响应于外部调整而工作，并且DC / DC转换器在控制器的控制下将电池电压转换成驱动电压。彩色LED背光包括由驱动电压操作的并联连接的第一，第二和第三彩色LED阵列。 FSC发生器根据内部锯齿电压和调光电压产生第一，第二和第三颜色PWM信号。 3通道电流源在控制器的控制下产生第一，第二和第三驱动电流，并且根据第一，第二和第三驱动电流在第一，第二和第三彩色LED阵列中的第一，第二和第三驱动电流的开/关，从FSC发生器产生的第二和第三颜色PWM信号，从而调整彩色LED背光的第一，第二和第三颜色LED阵列的亮度。

2. 发明授权

US08289091B2 Relaxation oscillator 失效
标题翻译：放松振荡器
公开(公告)号：US08289091B2
公开(公告)日：2012-10-16
申请号：US13005054
申请日：2011-01-12
申请人： Jeong Mo Yang , Changsik Yoo , Young Jin Moon , Yong Seong Roh , Joong Ho Choi , Jae Shin Lee , Jung Chul Gong , Yu Jin Jang
发明人： Jeong Mo Yang , Changsik Yoo , Young Jin Moon , Yong Seong Roh , Joong Ho Choi , Jae Shin Lee , Jung Chul Gong , Yu Jin Jang
IPC分类号： H03K3/26
CPC分类号： H03K3/354 , H03K3/0231 , H03K3/03 , H03K5/1534
摘要： A relaxation oscillator includes a ramp wave generator configured to generate a ramp wave by complementary first capacitor module charged and discharged according to a first switching signal and second capacitor module charged and discharged according to a second switching signal, a negative feedback circuit unit configured to generate a compensation voltage for compensating an error between the ramp wave and a reference voltage through a feedback of the ramp wave, and a switching signal generator configured to generate the first switching signal and the second switching signal from the compensation voltage and the ramp wave, including a peak voltage storage unit configured to store a peak voltage of the ramp wave that is controlled to be equal to the reference voltage based on the compensation voltage and a peak voltage transfer unit configured to transfer the peak voltage of the ramp wave to the negative feedback unit.
摘要翻译：张弛振荡器包括：斜波发生器，被配置为根据第一开关信号进行充放电的互补第一电容器模块和根据第二开关信号充放电的第二电容器模块产生斜波;负反馈电路单元，被配置为产生补偿电压，用于通过斜坡波的反馈补偿斜坡波与参考电压之间的误差;以及切换信号发生器，被配置为从补偿电压和斜波产生第一切换信号和第二切换信号，包括峰值电压存储单元，被配置为基于补偿电压来存储被控制为等于参考电压的斜波的峰值电压;以及峰值电压传送单元，其被配置为将斜波的峰值电压传递到负反馈单元。

3. 发明申请

US20120087160A1 POWER FACTOR CORRECTION CIRCUIT 有权
标题翻译：功率因数校正电路
公开(公告)号：US20120087160A1
公开(公告)日：2012-04-12
申请号：US13162793
申请日：2011-06-17
申请人： Jeong Mo YANG , Chang Sik YOO , Yung Jin MOON , Yong Seong ROH , Joong Ho CHOI , Jae Shin LEE , Jung Chul GONG , Yu Jin JANG
发明人： Jeong Mo YANG , Chang Sik YOO , Yung Jin MOON , Yong Seong ROH , Joong Ho CHOI , Jae Shin LEE , Jung Chul GONG , Yu Jin JANG
IPC分类号： H02M1/12
CPC分类号： H02M1/4225 , Y02B70/126 , Y02P80/112
摘要： There is provided a power factor correction circuit capable of correcting a power factor of a power converting module through increasing an input current by switching a main switching element of a power converting module on the basis of a first reference wave having a slope based on a first signal and an error voltage, in particular, by limiting a switching frequency on the basis of a first reference wave having a slope based on a second signal lower than a first signal and an error voltage when the switching frequency of the main switching element increases because an input voltage of the power converting module is low.
摘要翻译：提供了一种功率因数校正电路，其能够通过增加输入电流来校正功率转换模块的功率因数，所述功率因数校正电路通过基于第一参考波来切换功率转换模块的主开关元件，所述第一基准波具有基于第一信号和误差电压，特别是通过基于具有基于低于第一信号的第二信号的斜率的第一参考波和当主开关元件的开关频率增加时的误差电压来限制开关频率，因为电力转换模块的输入电压低。

4. 发明申请

US20110141085A1 INITIAL DRIVING CIRCUIT OF BACKLIGHT UNIT 失效
标题翻译：背光单元的初始驱动电路
公开(公告)号：US20110141085A1
公开(公告)日：2011-06-16
申请号：US12771002
申请日：2010-04-30
申请人： Yu Jin JANG , Jin Soo LEE , Jeong Mo YANG , Jeong In CHEON
发明人： Yu Jin JANG , Jin Soo LEE , Jeong Mo YANG , Jeong In CHEON
IPC分类号： G09G5/00
CPC分类号： H05B41/2858 , G09G3/3406 , G09G2330/026 , H05B41/382 , Y02B20/204
摘要： Provided is an initial driving circuit of a backlight unit having a lamp unit provided with a plurality of lamps. In the initial driving circuit, an error amplifying unit 100 detects an error voltage VERO between a feedback voltage VFB corresponding to a current flowing to the lamp unit and a preset first reference voltage Vref11. A soft signal generation unit 200 generates a soft start signal VSS of the lamp unit. A high-frequency signal driving signal generating unit 300 generates a high-frequency driving signal VHF of the of the lamp unit. A high-frequency driving termination determining unit 400 generates a high-frequency driving termination signal SHE when the error voltage VERO is equal in voltage level to the soft start signal VSS. A high-frequency driving signal blocking unit 500 blocks the high-frequency driving signal VHF in advance when the high-frequency driving termination signal SHE is inputted.
摘要翻译：提供了具有设置有多个灯的灯单元的背光单元的初始驱动电路。在初始驱动电路中，误差放大单元100检测对应于流向灯单元的电流的反馈电压VFB与预设的第一参考电压Vref11之间的误差电压VERO。软信号生成单元200生成灯单元的软启动信号VSS。高频信号驱动信号生成单元300生成灯单元的高频驱动信号VHF。高频驱动终止确定单元400当软电启动信号VSS的电压电平相等时，产生高频驱动终止信号SHE。当输入高频驱动终止信号SHE时，高频驱动信号阻断单元500预先阻挡高频驱动信号VHF。

5. 发明授权

US07940014B2 Apparatus for driving light emitting element 有权
标题翻译：用于驱动发光元件的装置
公开(公告)号：US07940014B2
公开(公告)日：2011-05-10
申请号：US12254520
申请日：2008-10-20
申请人： Sang Cheol Shin , Byoung Own Min , Jung Chul Gong , Yu Jin Jang , Seung Kon Kong
发明人： Sang Cheol Shin , Byoung Own Min , Jung Chul Gong , Yu Jin Jang , Seung Kon Kong
IPC分类号： H05B37/02
CPC分类号： H05B33/0818
摘要： Provided is an apparatus for driving a light emitting element. The apparatus includes a power unit, a light emitting element array, a constant-current circuit unit, and a voltage limiting circuit unit. The power unit supplies driving power. The light emitting element array includes a plurality of light emitting elements connected in series between an anode terminal connected to the power unit and a cathode terminal. The constant-current circuit unit maintains a constant current flowing through the light emitting element array according to a first tuning voltage. The voltage limiting circuit unit is connected between the cathode terminal of the light emitting element array and the constant-current circuit unit, and divides a total voltage applied between the cathode terminal of the light emitting element array and a ground according to a second tuning voltage to limit a voltage applied to the constant-current circuit unit below a predetermined voltage.
摘要翻译：提供一种驱动发光元件的装置。该装置包括功率单元，发光元件阵列，恒流电路单元和电压限制电路单元。电源单元提供驱动电源。发光元件阵列包括串联连接到电源单元的阳极端子和阴极端子之间的多个发光元件。恒流电路单元根据第一调谐电压维持流过发光元件阵列的恒定电流。电压限制电路单元连接在发光元件阵列的阴极端子和恒流电路单元之间，并且根据第二调谐电压将施加在发光元件阵列的阴极端子与地之间的总电压分压以将施加到恒流电路单元的电压限制在预定电压以下。

6. 发明授权

US07868560B2 Inverter driving circuit for LCD backlight 失效
标题翻译：逆变驱动电路用于LCD背光
公开(公告)号：US07868560B2
公开(公告)日：2011-01-11
申请号：US11808161
申请日：2007-06-07
申请人： Jung Chul Gong , Byoung Own Min , Yu Jin Jang , Sang Cheol Shin
发明人： Jung Chul Gong , Byoung Own Min , Yu Jin Jang , Sang Cheol Shin
IPC分类号： H05B41/36
CPC分类号： H05B41/2828 , G09G3/3406 , Y02B20/186
摘要： An inverter driving circuit for an LCD is switched on/off more stably to improve heating radiation characteristics and drive efficiency. In the driving circuit, a controller supplies a first driving signal. A level shifter provides a second driving signal. A first delay circuit delays a rising section of the first driving signal to provide the first driving signal. A second delay circuit delays a falling section of the second driving signal to provide the second driving signal. Also, a power switching circuit is provided. The inverter driving circuit for the LCD, when a switching device thereof is turned off, has less current flowing in the switching device, thereby generating less heat. In addition, the inverter driving circuit prevents heat generation caused by current flowing reversely in the switching device, thereby enhancing drive efficiency.
摘要翻译：用于LCD的逆变器驱动电路更稳定地接通/断开以提高加热辐射特性和驱动效率。在驱动电路中，控制器提供第一驱动信号。电平移位器提供第二驱动信号。第一延迟电路延迟第一驱动信号的上升部分以提供第一驱动信号。第二延迟电路延迟第二驱动信号的下降部分以提供第二驱动信号。另外，还提供了电源开关电路。用于LCD的逆变器驱动电路当其开关装置关闭时，在开关装置中流动的电流较少，从而产生较少的热量。此外，逆变器驱动电路防止在开关装置中逆流流动的热量产生，从而提高驱动效率。

7. 发明申请

US20100109547A1 LCD BACKLIGHT INVERTER 有权
标题翻译：液晶背光逆变器
公开(公告)号：US20100109547A1
公开(公告)日：2010-05-06
申请号：US12437692
申请日：2009-05-08
申请人： Yu Jin JANG , Byoung own Min , Jung Chul Gong , Sang Cheol Shin , Jeong In Cheon
发明人： Yu Jin JANG , Byoung own Min , Jung Chul Gong , Sang Cheol Shin , Jeong In Cheon
IPC分类号： H05B41/292
CPC分类号： H05B41/2855
摘要： Disclosed is a liquid crystal display (LCD) backlight inverter. The LCD backlight inverter includes a lamp open detection unit outputting a first open detection voltage for a preset time period when it is determined that a predetermined lamp is open, based on a current voltage corresponding to the current of the predetermined lamp of a plurality of lamps, a first open determination unit outputting an open detection signal when the first open detection voltage is input, a second open determination unit outputting a protection signal when it is determined that all of the plurality of lamps are open based on detection voltages of the plurality of lamps, a temporary protection determination unit outputting a frequency change signal when both the open detection signal and the protection signal are input, and an operating frequency control unit changing an operating frequency to a preset protective frequency according to the frequency change.
摘要翻译：公开了一种液晶显示（LCD）背光逆变器。 LCD背光逆变器包括：灯开路检测单元，基于与多个灯的预定灯的电流相对应的电流电压，当确定预定灯打开时，将预定时间段的第一开路检测电压输出第一开路判定单元，当输入第一开路检测电压时，输出开路检测信号;第二开路判定单元，基于多个灯的检测电压确定多个灯全部断开时，输出保护信号灯，当输入开放检测信号和保护信号时输出频率变化信号的临时保护判定单元，以及根据频率变化将工作频率改变为预设保护频率的工作频率控制单元。

8. 发明申请

US20090058467A1 PHASE DETECTION APPARATUS 失效
标题翻译：相位检测装置
公开(公告)号：US20090058467A1
公开(公告)日：2009-03-05
申请号：US12200031
申请日：2008-08-28
申请人： Jung Chul GONG , Byoung Own MIN , Yu Jin JANG , Seung Kon KONG , Sang Cheol SHIN
发明人： Jung Chul GONG , Byoung Own MIN , Yu Jin JANG , Seung Kon KONG , Sang Cheol SHIN
IPC分类号： H03D13/00
CPC分类号： H03D13/003
摘要： There is provided a phase detection apparatus that can accurately detect a phase difference between an input signal and a reference signal even when the input signal and the reference signal have different duty cycles. A phase detection apparatus according to an aspect of the invention may include: a pulse generation unit generating a first pulse signal on an edge of an input pulse signal, and a second pulse signal based on an edge of a reference pulse signal having a predetermined phase; and a detection unit detecting a phase difference between the first pulse signal and the second pulse signal from the pulse generation unit.
摘要翻译：提供了即使在输入信号和参考信号具有不同的占空比的情况下，也可以精确地检测输入信号和参考信号之间的相位差的相位检测装置。根据本发明的一个方面的相位检测装置可以包括：脉冲产生单元，其在输入脉冲信号的边缘上产生第一脉冲信号，以及基于具有预定相位的参考脉冲信号的边沿的第二脉冲信号 ; 以及检测单元，其从所述脉冲发生单元检测所述第一脉冲信号和所述第二脉冲信号之间的相位差。

9. 发明申请

US20090009256A1 VARIABLE-FREQUENCY OSCILLATOR 有权
标题翻译：可变频率振荡器
公开(公告)号：US20090009256A1
公开(公告)日：2009-01-08
申请号：US12166885
申请日：2008-07-02
申请人： YU JIN JANG , BYOUNG OWN MIN , SEUNG KON KONG , SANG CHEOL SHIN , JUNG CHUL GONG
发明人： YU JIN JANG , BYOUNG OWN MIN , SEUNG KON KONG , SANG CHEOL SHIN , JUNG CHUL GONG
IPC分类号： H03L7/00 , G05F3/04
CPC分类号： H03K4/502
摘要： There is provided a frequency-variable oscillator that varies, even when a frequency of an input signal is varied, a frequency of an oscillation signal according to the varied frequency of the input signal. A frequency-variable oscillator according to an aspect of the invention includes: a voltage-to-current converter circuit converting a voltage level of an input signal into a current level within a predetermined range; and an oscillator circuit varying a frequency according to the current level from the voltage-to-current converter circuit and oscillating the varied frequency.
摘要翻译：提供了一种变频振荡器，即使输入信号的频率发生变化，也可根据输入信号的频率变化振荡信号的频率。根据本发明的一个方面的频率可变振荡器包括：电压 - 电流转换器电路，其将输入信号的电压电平转换成预定范围内的电流电平; 以及振荡器电路，其根据来自电压 - 电流转换器电路的电流电平改变频率并振荡变化的频率。

10. 发明申请

US20070290722A1 Liquid crystal display backlight inverter 失效
标题翻译：液晶显示器背光逆变器
公开(公告)号：US20070290722A1
公开(公告)日：2007-12-20
申请号：US11812554
申请日：2007-06-20
申请人： Yu Jin Jang , Byoung Own Min , Sang Cheol Shin , Jung Chul Gong
发明人： Yu Jin Jang , Byoung Own Min , Sang Cheol Shin , Jung Chul Gong
IPC分类号： G01R19/00
CPC分类号： H05B41/2855
摘要： A liquid crystal display backlight inverter including a first error amplifying unit receiving and comparing a first detection voltage corresponding to a current flowing through a lamp with a first preset reference voltage and outputting a first error voltage corresponding to an error therebetween; a second error amplifying unit receiving and comparing a second detection voltage corresponding to a voltage applied to the lamp with a second preset reference voltage and outputting a second error voltage corresponding to an error therebetween; a feedback selector selecting one of the outputs of the first and second error amplifying unit according to an error between the second detection voltage and a third preset reference voltage; and a lamp control pulse generator generating a pulse signal having a duty controlled according to one of the first error voltage and second error voltage.
摘要翻译：一种液晶显示器背光逆变器，包括：第一误差放大单元，接收和比较与流过灯的电流相对应的第一检测电压与第一预设参考电压，并输出与其间的误差对应的第一误差电压; 第二误差放大单元，接收和比较与施加到所述灯的电压相对应的第二检测电压与第二预设参考电压，并输出与其之间的误差对应的第二误差电压; 反馈选择器，根据第二检测电压和第三预置参考电压之间的误差来选择第一和第二误差放大单元的输出之一; 以及灯控制脉冲发生器，其产生具有根据第一误差电压和第二误差电压之一控制的占空比的脉冲信号。

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