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1. 发明专利

JP2008010425A Voltage feedback circuit for lcd backlight inverter 审中-公开
标题翻译： LCD背光逆变器电压反馈电路
公开(公告)号：JP2008010425A
公开(公告)日：2008-01-17
申请号：JP2007169507
申请日：2007-06-27
申请人： Samsung Electro Mech Co Ltd , 三星電機株式会社
发明人： SHIN SANG CHEOL , MIN BYOUNG OWN , GONG JUNG CHUL , JANG YOU JIN
IPC分类号： H05B41/24 , G02F1/13357
CPC分类号： H05B41/282 , G09G3/3406 , H05B41/2822 , H05B41/2855 , Y02B20/183
摘要： PROBLEM TO BE SOLVED: To provide a voltage feedback circuit for an LCD backlight inverter capable of correctly detecting a lamp drive voltage in open condition regardless of the number of lamp open wires. SOLUTION: This voltage feedback circuit applied to an LCD backlight inverter including a plurality of pairs of first and second transformers driven in phases reverse to each other is provided with: a first voltage detection part 110 detecting a first drive voltage from a first transformer; a second voltage detection part 120 detecting a second drive voltage from a second transformer; a peak detection part 130 detecting a peak of a detection voltage VD detected at a detection connection node ND to which the output end of the first voltage detection part and that of the second voltage detection part are connected; a voltage regulation part 140 regulating the peak voltage from the peak detection part to a preset voltage ratio; and an error detection part 150 detecting the difference between the detection voltage from the voltage regulation part and a preset reference voltage. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于LCD背光逆变器的电压反馈电路，能够在打开状态下正确地检测灯驱动电压，而不管灯开路数量如何。
解决方案：该电压反馈电路被应用于包括彼此相反驱动的多对第一和第二变压器的LCD背光逆变器，第一电压检测部分110检测来自第一变压器; 第二电压检测部分120，检测来自第二变压器的第二驱动电压; 峰值检测部分130，检测在第一电压检测部分和第二电压检测部分的输出端连接到的检测连接节点ND处检测到的检测电压VD的峰值; 将峰值电压从峰值检测部分调节到预设电压比的电压调整部分140; 以及检测来自电压调节部分的检测电压与预设参考电压之间的差异的误差检测部分150。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2009124125A 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：JP2009124125A
公开(公告)日：2009-06-04
申请号：JP2008270856
申请日：2008-10-21
申请人： Samsung Electro Mech Co Ltd , 三星電機株式会社
发明人： SHIN SANG CHEOL , MIN BYOUNG OWN , GONG JUNG CHUL , JANG YOU JIN , KONG SEUNG KON
IPC分类号： H01L33/00
CPC分类号： H05B33/0818
摘要： PROBLEM TO BE SOLVED: To provide an apparatus for driving a light emitting element which can limit heat generation in a constant current circuit. SOLUTION: This apparatus includes: a power part 100 supplying driving power; a light emitting element array 200 including a plurality of light emitting elements connected in series between an anode end connected to the power part 100 and a cathode end; a constant-current circuit part 300 keeping a current flowing to the light emitting element array 200 constant in accordance with a first tuning voltage; and a voltage limiting circuit part 400 connected between the cathode end of the light emitting element array 200 and the constant-current circuit part 300, and dividing a partial voltage out of a total voltage applied between the cathode end of the light emitting element array 200 and a ground according to a second tuning voltage to limit a voltage applied to the constant-current circuit part 300 below a preset voltage. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于驱动可限制恒流电路中的发热的发光元件的装置。解决方案：该装置包括：提供驱动力的功率部分100; 发光元件阵列200，其包括串联连接到电源部分100的阳极端和阴极端之间的多个发光元件; 根据第一调谐电压保持流向发光元件阵列200的电流恒定的恒流电路部件300; 以及连接在发光元件阵列200的阴极端和恒流电路部300之间的电压限制电路部400，并且将施加在发光元件阵列200的阴极端之间的总电压除成分压以及根据第二调谐电压的接地，以将施加到恒流电路部件300的电压限制在预设电压以下。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2007213010A Field sequential color mode liquid crystal display 有权
标题翻译：现场顺序颜色模式液晶显示
公开(公告)号：JP2007213010A
公开(公告)日：2007-08-23
申请号：JP2006323282
申请日：2006-11-30
申请人： Samsung Electro Mech Co Ltd , 三星電機株式会社
发明人： HA CHANG WOO , MIN BYOUNG OWN , CHEON JEONG IN , JANG YOU JIN
IPC分类号： G09G3/34 , G02F1/133 , G09G3/20 , G09G3/36
CPC分类号： G09G3/3413 , G09G2310/0235 , G09G2320/064 , H05B33/0818 , Y02B20/347
摘要： PROBLEM TO BE SOLVED: To provide a field sequential color mode liquid crystal display device capable of improving luminance efficiency and reducing color distortion by applying a burst mode PWM dimming to a field sequential driving system.
SOLUTION: The field sequential color mode liquid crystal display includes: a controller which operates in response to an external adjustment; a DC/DC converter which converts a battery voltage into a driving voltage under control of the controller; a color LED backlight which includes first, second and third color LED arrays operating by the driving voltage from the DC/DC converter; an FSC generator which generates first, second and third color PWM signals according to an internal sawtooth voltage and a dimming voltage; and a 3-channel current source which 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.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：解决的问题：提供一种场顺序彩色模式液晶显示装置，其能够通过对场顺序驱动系统施加突发模式PWM调光来提高亮度效率并降低颜色失真。解决方案：场序色彩模式液晶显示器包括：控制器，其响应于外部调整而操作; DC / DC转换器，其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，其包括由来自DC / DC转换器的驱动电压工作的第一，第二和第三彩色LED阵列; FSC发生器，其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; 以及3通道电流源，其在所述控制器的控制下产生第一，第二和第三驱动电流，并且根据所述控制器的所述第一，第二和第三颜色LED阵列的所述第一，第二和第三驱动电流的导通/截止开关路径从FSC发生器产生的第一，第二和第三颜色PWM信号。版权所有（C）2007，JPO＆INPIT

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