公开(公告)号：US20100026201A1

公开(公告)日：2010-02-04

申请号：US12495065

申请日：2009-06-30

申请人： Sang-Chul Byun ,  Se-Ki Park ,  Byoung-Dae Ye ,  Eui-Jeong Kang ,  Yong-Hoon Kwon ,  Gi-Cherl Kim ,  Byung-Choon Yang

发明人： Sang-Chul Byun ,  Se-Ki Park ,  Byoung-Dae Ye ,  Eui-Jeong Kang ,  Yong-Hoon Kwon ,  Gi-Cherl Kim ,  Byung-Choon Yang

IPC分类号： H05B37/02

CPC分类号： G09G3/3406 ,  G09G3/3648 ,  G09G2310/066 ,  G09G2320/0209 ,  G09G2320/0219 ,  G09G2320/0276 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2330/025 ,  G09G2330/06 ,  G09G2360/16 ,  H05B33/0815 ,  H05B33/0818 ,  H05B33/0848

摘要： A display device with improved display quality is provided. The display device includes an LED light source emitting light, a display panel receiving the light to display an image, and a backlight driver adjusting the magnitude and the duty ratio of an LED current I_LED flowing through the LED light source. The waveform of the LED current I_LED includes at least one of a rising section in which the magnitude of the LED current more gradually increases from a turn-off current value to a peak value, and a falling section in which the magnitude of the LED current more gradually decreases from the peak value to the turn-off current value. This acts to reduce waterfall noise.

摘要翻译： 提供了具有改进的显示质量的显示装置。 显示装置包括发射光的LED光源，接收用于显示图像的光的显示面板和调节流过LED光源的LED电流I_LED的大小和占空比的背光驱动器。 LED电流I_LED的波形包括其中LED电流的大小从关断电流值逐渐增加到峰值的上升部分中的至少一个以及LED电流的大小的下降部分 从峰值逐渐减小到关断电流值。 这样做可以降低瀑布噪音。

公开(公告)号：US08198822B2

公开(公告)日：2012-06-12

申请号：US12496772

申请日：2009-07-02

申请人： Sang-Chul Byun ,  Gi-Cherl Kim ,  Byung-Choon Yang ,  Byoung-Dae Ye

发明人： Sang-Chul Byun ,  Gi-Cherl Kim ,  Byung-Choon Yang ,  Byoung-Dae Ye

IPC分类号： H05B41/36 ,  H05B43/00 ,  H05B37/02

CPC分类号： H05B33/0815 ,  G09G3/3406 ,  Y02B20/341

摘要： A light source driving apparatus includes; a boosting part which boosts an input voltage received from an input part and generates a driving voltage, a boosting transistor which controls an operation of the boosting part, a rectification part connected between the boosting part and an output part and which transmits the driving voltage to the output part, an integrated circuit which generates a gate signal which controls the boosting transistor, and a protection circuit which generates a protection signal which controls a voltage level of the gate signal according to an output current of the boosting transistor.

摘要翻译： 光源驱动装置包括： 升压部，其升高从输入部接收的输入电压并产生驱动电压;升压晶体管，其控制所述升压部的动作;整流部，连接在所述升压部和所述输出部之间，并将所述驱动电压传递至 输出部分，产生控制升压晶体管的栅极信号的集成电路，以及产生保护信号的保护电路，该保护信号根据升压晶体管的输出电流来控制栅极信号的电压电平。

公开(公告)号：US08395325B2

公开(公告)日：2013-03-12

申请号：US12556320

申请日：2009-09-09

申请人： Byoung-Dae Ye ,  Gi-Cherl Kim ,  Byung-Choon Yang ,  Se-Ki Park ,  Sang-Chul Byun

发明人： Byoung-Dae Ye ,  Gi-Cherl Kim ,  Byung-Choon Yang ,  Se-Ki Park ,  Sang-Chul Byun

IPC分类号： H05B37/00 ,  H05B39/00 ,  H05B41/00 ,  G09G3/32

CPC分类号： H05B33/0818 ,  H05B33/0827

摘要： A method of driving a light source, a light source apparatus for performing the method, and a display apparatus having the light source apparatus are disclosed in accordance with one or more embodiments. In the method, a plurality of light source strings connected in parallel is driven by applying a driving voltage to a first terminal of the light source strings. A peak current due to a voltage deviation of each of the light source strings is switch-controlled to uniform an average current of the light source strings. Thus, a peak current flowing through light source strings in accordance with a voltage deviation of the light source strings is switch-controlled, so that an average current of the light source strings may be uniformly maintained. Therefore, a voltage deviation is not consumed as power, so that damage to circuit elements due to heat may be prevented.

摘要翻译： 根据一个或多个实施例公开了一种驱动光源的方法，用于执行该方法的光源装置和具有该光源装置的显示装置。 在该方法中，通过向光源串的第一端施加驱动电压来驱动并联连接的多个光源串。 由于每个光源串的电压偏差引起的峰值电流被开关控制以使光源串的平均电流均匀。 因此，根据光源串的电压偏差流过光源串的峰值电流是开关控制的，使得可以均匀地保持光源串的平均电流。 因此，不会将电压偏差作为功率消耗，从而可以防止由于热而对电路元件造成的损坏。

公开(公告)号：US20100194299A1

公开(公告)日：2010-08-05

申请号：US12556320

申请日：2009-09-09

申请人： Byoung-Dae Ye ,  Gi-Cherl Kim ,  Byung-Choon Yang ,  Se-Ki Park ,  Sang-Chul Byun

发明人： Byoung-Dae Ye ,  Gi-Cherl Kim ,  Byung-Choon Yang ,  Se-Ki Park ,  Sang-Chul Byun

IPC分类号： H05B37/00

CPC分类号： H05B33/0818 ,  H05B33/0827

摘要： A method of driving a light source, a light source apparatus for performing the method, and a display apparatus having the light source apparatus are disclosed in accordance with one or more embodiments. In the method, a plurality of light source strings connected in parallel is driven by applying a driving voltage to a first terminal of the light source strings. A peak current due to a voltage deviation of each of the light source strings is switch-controlled to uniform an average current of the light source strings. Thus, a peak current flowing through light source strings in accordance with a voltage deviation of the light source strings is switch-controlled, so that an average current of the light source strings may be uniformly maintained. Therefore, a voltage deviation is not consumed as power, so that damage to circuit elements due to heat may be prevented.

摘要翻译： 根据一个或多个实施例公开了一种驱动光源的方法，用于执行该方法的光源装置和具有该光源装置的显示装置。 在该方法中，通过向光源串的第一端施加驱动电压来驱动并联连接的多个光源串。 由于每个光源串的电压偏差引起的峰值电流被开关控制以使光源串的平均电流均匀。 因此，根据光源串的电压偏差流过光源串的峰值电流是开关控制的，使得可以均匀地保持光源串的平均电流。 因此，不会将电压偏差作为功率消耗，从而可以防止由于热而对电路元件造成的损坏。

公开(公告)号：US08330705B2

公开(公告)日：2012-12-11

申请号：US12469081

申请日：2009-05-20

申请人： Byoung-Dae Ye ,  Gi-Cherl Kim ,  Byung-Choon Yang ,  Sang-Chul Byun

发明人： Byoung-Dae Ye ,  Gi-Cherl Kim ,  Byung-Choon Yang ,  Sang-Chul Byun

IPC分类号： G09G3/36

CPC分类号： H05B33/0818 ,  H05B33/086 ,  Y02B20/347

摘要： A method of driving a light source includes; driving a plurality of light source strings in response to a plurality of driving signals, when a light source module having the plurality of light source strings connected in parallel with each other receives a driving voltage, detecting a detection voltage from channel input terminals of a multichannel current control part, wherein the multichannel current control part controls a resistance difference of the plurality of light source strings based on the plurality of driving signals, and controlling a level of the driving voltage via adjusting a current applied to a feedback terminal of a driving voltage generating part, wherein the driving voltage generating part generates the driving voltage.

摘要翻译： 驱动光源的方法包括： 当具有彼此并联连接的多个光源串的光源模块接收驱动电压时，响应于多个驱动信号驱动多个光源串，从多通道的通道输入端检测检测电压 电流控制部，其中所述多通道电流控制部分基于所述多个驱动信号来控制所述多个光源串的电阻差，并且通过调节施加到驱动电压的反馈端的电流来控制所述驱动电压的电平 其中所述驱动电压产生部分产生所述驱动电压。

公开(公告)号：US20090207633A1

公开(公告)日：2009-08-20

申请号：US12243620

申请日：2008-10-01

申请人： Byoung-Dae Ye ,  Gi-Cherl Kim ,  Byung-Choon Yang ,  Dong-Min Yeo

发明人： Byoung-Dae Ye ,  Gi-Cherl Kim ,  Byung-Choon Yang ,  Dong-Min Yeo

IPC分类号： F21V8/00

CPC分类号： G02F1/1336 ,  G02F2001/133612 ,  H01L25/167 ,  H01L27/15 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01L2224/48247 ,  H01L2924/1305 ,  H01L2924/00014 ,  H01L2924/00

摘要： A backlight unit and a liquid crystal display including the same are provided. The backlight unit includes a circuit board, at least one internal interconnection formed on the circuit board, and a plurality of light emitting devices mounted to be connected with the at least one internal interconnection on the circuit board, each of the plurality of light emitting devices including at least one light emitting chip and at least one driving chip.

摘要翻译： 提供背光单元和包括该背光单元的液晶显示器。 背光单元包括电路板，形成在电路板上的至少一个内部互连以及安装成与电路板上的至少一个内部互连连接的多个发光器件，多个发光器件中的每一个 包括至少一个发光芯片和至少一个驱动芯片。

公开(公告)号：US08242982B2

公开(公告)日：2012-08-14

申请号：US12407448

申请日：2009-03-19

申请人： Eui-Jeong Kang ,  Gi-Cherl Kim ,  Byung-Choon Yang ,  Byoung-Dae Ye ,  Dong-Min Yeo

发明人： Eui-Jeong Kang ,  Gi-Cherl Kim ,  Byung-Choon Yang ,  Byoung-Dae Ye ,  Dong-Min Yeo

IPC分类号： G09G3/30

CPC分类号： G09G3/3426 ,  G09G2320/0233 ,  G09G2320/04 ,  G09G2320/043 ,  G09G2320/0633 ,  G09G2320/064

摘要： To drive light-emitting blocks, currents are sensed through the light-emitting blocks arranged in an M×N matrix (wherein M and N are natural numbers), wherein M rows are connected to a row switching part and N columns are connected to a column switching part. The light-emitting blocks are driven by a local dimming method with feedback control responsive to the sensed currents.

摘要翻译： 为了驱动发光块，通过布置在M×N矩阵（其中M和N是自然数）的发光块感测电流，其中M行连接到行切换部分，并且N列连接到 列切换部。 发光块由具有响应于感测电流的反馈控制的局部调光方法驱动。

公开(公告)号：US08363004B2

公开(公告)日：2013-01-29

申请号：US12352255

申请日：2009-01-12

申请人： Byoung-Dae Ye ,  Byung-Choon Yang ,  Gi-Cherl Kim

发明人： Byoung-Dae Ye ,  Byung-Choon Yang ,  Gi-Cherl Kim

IPC分类号： G09G3/36 ,  H05B37/02

CPC分类号： G09G3/006 ,  G09G3/3406 ,  G09G3/3648 ,  G09G2330/08

摘要： A method of driving light sources controls amounts of light from light-emitting diode (LED) strings based on pulse signals to operate the LED strings connected in parallel. Voltages are synchronized with the pulse signals at input terminals of control circuits to detect the voltages, the control circuits being connected to the LED strings and controlling resistance variations of the LED strings. The operation of the LED strings is stopped when the detected voltage is out of a predetermined allowable voltage range due to a short-circuited LED. Therefore, a light source device may be protected by stopping the operation of the LED strings.

摘要翻译： 驱动光源的方法基于脉冲信号来控制来自发光二极管（LED）串的光量，以操作并联连接的LED串。 电压与控制电路输入端的脉冲信号同步，以检测电压，控制电路连接到LED串并控制LED串的电阻变化。 当检测到的电压由于短路LED而在预定的允许电压范围之外时，LED串的操作停止。 因此，可以通过停止LED串的操作来保护光源装置。

公开(公告)号：US08226257B2

公开(公告)日：2012-07-24

申请号：US12243620

申请日：2008-10-01

申请人： Byoung-Dae Ye ,  Gi-Cherl Kim ,  Byung-Choon Yang ,  Dong-Min Yeo

发明人： Byoung-Dae Ye ,  Gi-Cherl Kim ,  Byung-Choon Yang ,  Dong-Min Yeo

IPC分类号： G09F13/04

CPC分类号： G02F1/1336 ,  G02F2001/133612 ,  H01L25/167 ,  H01L27/15 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01L2224/48247 ,  H01L2924/1305 ,  H01L2924/00014 ,  H01L2924/00

摘要： A backlight unit and a liquid crystal display including the same are provided. The backlight unit includes a circuit board, at least one internal interconnection formed on the circuit board, and a plurality of light emitting devices mounted to be connected with the at least one internal interconnection on the circuit board, each of the plurality of light emitting devices including at least one light emitting chip and at least one driving chip.

摘要翻译： 提供背光单元和包括该背光单元的液晶显示器。 背光单元包括电路板，形成在电路板上的至少一个内部互连以及安装成与电路板上的至少一个内部互连连接的多个发光器件，多个发光器件中的每一个 包括至少一个发光芯片和至少一个驱动芯片。

公开(公告)号：US20090225021A1

公开(公告)日：2009-09-10

申请号：US12352255

申请日：2009-01-12

申请人： Byoung-Dae Ye ,  Byung-Choon Yang ,  Gi-Cherl Kim

发明人： Byoung-Dae Ye ,  Byung-Choon Yang ,  Gi-Cherl Kim

IPC分类号： G09G3/36 ,  H05B37/02

CPC分类号： G09G3/006 ,  G09G3/3406 ,  G09G3/3648 ,  G09G2330/08

摘要： A method of driving light sources controls amounts of light from light-emitting diode (LED) strings based on pulse signals to operate the LED strings connected in parallel. Voltages are synchronized with the pulse signals at input terminals of control circuits to detect the voltages, the control circuits being connected to the LED strings and controlling resistance variations of the LED strings. The operation of the LED strings is stopped when the detected voltage is out of a predetermined allowable voltage range due to a short-circuited LED. Therefore, a light source device may be protected by stopping the operation of the LED strings.

摘要翻译： 驱动光源的方法基于脉冲信号来控制来自发光二极管（LED）串的光量，以操作并联连接的LED串。 电压与控制电路输入端的脉冲信号同步，以检测电压，控制电路连接到LED串并控制LED串的电阻变化。 当检测到的电压由于短路LED而在预定的允许电压范围之外时，LED串的操作停止。 因此，可以通过停止LED串的操作来保护光源装置。