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1. 发明申请

US20150359051A1 LOW FLICKER LED DRIVING CIRCUIT WITH HIGH POWER FACTOR 有权
标题翻译：具有高功率因数的低闪烁LED驱动电路
公开(公告)号：US20150359051A1
公开(公告)日：2015-12-10
申请号：US14297906
申请日：2014-06-06
申请人： VastView Technology Inc.
发明人： Hung-Chi Chu , Yuhren Shen
IPC分类号： H05B33/08
CPC分类号： H05B33/0845 , H05B33/083
摘要： An LED-based lighting apparatus comprises a rectified AC voltage source having a rectified output connected to a storage capacitor through a switching device, a plurality of LED segments controlled by a linear driving circuit and at least one charging path connected between the LED segments and the storage capacitor. One or more controllable linear LED driving units may be connected in parallel with the storage capacitor to provide balance between reducing flicker and increasing power factor of the lighting apparatus.
摘要翻译：一种基于LED的照明装置，包括经整流的交流电压源，其整流输出通过开关装置连接到存储电容器，多个LED线段由线性驱动电路控制，至少一个充电路径连接在LED段和存储电容。可以将一个或多个可控制的线性LED驱动单元与存储电容器并联连接，以在降低闪烁和提高照明装置的功率因数之间提供平衡。

2. 发明申请

US20150084516A1 LED-BASED LIGHTING APPARATUS WITH LOW FLICKER 审中-公开
标题翻译：基于LED的低照度照明设备
公开(公告)号：US20150084516A1
公开(公告)日：2015-03-26
申请号：US14034808
申请日：2013-09-24
申请人： VastView Technology Inc.
发明人： Hung-Chi Chu , YuhRen Shen
IPC分类号： H05B33/08
CPC分类号： H05B33/0809 , H05B33/0812 , Y02B20/343
摘要： An LED-based lighting apparatus is powered by multi-phase AC voltages to reduce flicker. A multi-phase AC-to-AC power generator is used to generate a plurality of AC voltages from an AC power source. The plurality of AC voltages each having a different phase are rectified by a plurality of rectifiers to provide a plurality of rectified AC voltages for a plurality of LED lighting units. Each LED lighting unit has voltage dependent brightness and reaches maximum brightness at different time due to the phase difference in the rectified AC voltage. The peak-to-peak variation in the total brightness is reduced and therefore the LED-based lighting apparatus has low flicker.
摘要翻译：基于LED的照明装置由多相交流电压供电以减少闪烁。多相AC交流发电机用于从AC电源产生多个AC电压。各个具有不同相位的多个AC电压由多个整流器整流，以为多个LED照明单元提供多个整流的AC电压。每个LED照明单元具有电压依赖亮度，由于整流交流电压的相位差，在不同时间达到最大亮度。总亮度的峰 - 峰变化减小，因此基于LED的照明装置具有低闪烁。

3. 发明申请

US20140159593A1 APPARATUS HAVING UNIVERSAL STRUCTURE FOR DRIVING A PLURALITY OF LED STRINGS 审中-公开
标题翻译：具有驱动大量LED条的通用结构的装置
公开(公告)号：US20140159593A1
公开(公告)日：2014-06-12
申请号：US13708452
申请日：2012-12-07
申请人： VASTVIEW TECHNOLOGY INC.
发明人： Hung-Chi Chu , Yuh-Ren Shen
IPC分类号： H05B33/08
CPC分类号： H05B33/083 , H05B33/0824
摘要： An apparatus comprises a plurality of controllable LED strings interposed with a plurality of switching units with each switching unit being connected between a leading controllable LED string and a trailing controllable LED string. A controller controls the switching units so that controllable LED strings are connected in a combination of series and parallel connections by connecting two adjacent leading and trailing controllable LED strings in series or parallel or by-passing the leading controllable LED string based on an automatically detected input voltage range. Each controllable LED string includes a plurality of LEDs connected in series between positive and negative ends of the controllable LED string and a plurality of controlling switches each corresponding to an LED. The number of LEDs connected in series in each controllable LED string is further adjusted by the controller as the input voltage varies with time.
摘要翻译：一种装置包括多个可控LED串，其插入多个开关单元，每个开关单元连接在前置可控LED串和后置可控LED串之间。控制器控制开关单元，使得可控LED串以串联和并联连接的组合连接，通过串联或并联连接两个相邻的前导和后退可控LED串，或者基于自动检测的输入绕过前导可控LED串电压范围每个可控LED串包括串联连接在可控LED串的正端和负端之间的多个LED以及各自对应于LED的多个控制开关。随着输入电压随时间的变化，控制器进一步调整每个可控LED串串联连接的LED数量。

4. 发明授权

US08648537B2 Methods and apparatus for driving LED-based lighting units 有权
标题翻译：用于驱动LED照明单元的方法和装置
公开(公告)号：US08648537B2
公开(公告)日：2014-02-11
申请号：US13420608
申请日：2012-03-15
申请人： Hung-Chi Chu
发明人： Hung-Chi Chu
IPC分类号： H05B37/02
CPC分类号： H05B33/0824
摘要： A plurality of switching units interleaves with a plurality of LED-based lighting units to configure the interconnection of the LED-based lighting units for providing multiple lighting modes. Each switching unit disposed between a leading lighting unit and a trailing lighting unit is separately controlled by a controller. The switching unit can be configured to connect the two LED-based lighting units in parallel or in series, or to bypass the leading LED-based lighting unit. All the LED-based lighting units are connected in series when an input voltage supply is at a maximum voltage level, and connected in parallel when the input voltage supply is at a minimum voltage level. As the input voltage level decreases, the number of LED-based lighting units connected in parallel increases, and vice versa.
摘要翻译：多个开关单元与多个基于LED的照明单元交错，以配置用于提供多个照明模式的基于LED的照明单元的互连。设置在前导照明单元和后退照明单元之间的每个切换单元由控制器单独控制。开关单元可以被配置为并联或串联连接两个基于LED的照明单元，或者绕过领先的基于LED的照明单元。当输入电压为最大电压电平时，所有基于LED的照明单元都串联连接，并且当输入电压为最小电压电平时并联。随着输入电压电平的降低，并联连接的基于LED的照明单元的数量增加，反之亦然。

5. 发明授权

US07652462B2 Constant current regulator with current sensing circuit loop 失效
标题翻译：具有电流检测电路回路的恒流稳压器
公开(公告)号：US07652462B2
公开(公告)日：2010-01-26
申请号：US11907545
申请日：2007-10-15
申请人： Ming-Chia Wang , Hung-Chi Chu , Yuhren Shen
发明人： Ming-Chia Wang , Hung-Chi Chu , Yuhren Shen
IPC分类号： G05F1/40 , G05F1/10
CPC分类号： H02M3/156
摘要： A constant current regulator includes a current sensing circuit loop connected to a switch unit of the constant current regulator to detect a current flowing through the switch unit and to generate a detection current that is in proportion to the current flowing through the switch unit. The detection current flows through a detection resistor to induce a detection voltage. A differential amplifier bases on a set voltage and the received detection voltage to generate an error voltage to a pulse width modulation controller, which in turn causes a gate driver circuit to control the switching operation of the switch unit thereby supplying a constant current to a load connected to an output voltage of the regulator.
摘要翻译：恒流调节器包括连接到恒流调节器的开关单元的电流感测电路回路，以检测流过开关单元的电流并产生与流过开关单元的电流成比例的检测电流。检测电流流过检测电阻器以产生检测电压。差分放大器基于设定电压和接收到的检测电压，以产生到脉宽调制控制器的误差电压，这又导致栅极驱动电路控制开关单元的开关操作，从而向负载提供恒定电流连接到调节器的输出电压。

6. 发明授权

US07307611B2 Driving method for LCD panel 失效
标题翻译： LCD面板驱动方式
公开(公告)号：US07307611B2
公开(公告)日：2007-12-11
申请号：US10889265
申请日：2004-07-10
申请人： Liang-Chen Chien , Cheng-Jung Chen , Chang-Cheng Lin
发明人： Liang-Chen Chien , Cheng-Jung Chen , Chang-Cheng Lin
IPC分类号： G09G3/36
CPC分类号： G09G3/3648 , G09G3/2011 , G09G3/3685 , G09G2310/0205 , G09G2310/0251 , G09G2310/027 , G09G2320/0247 , G09G2320/0261
摘要： A driving method for LCD panels is disclosed, wherein the driver circuit includes multiple data line drivers and at least two gate line drivers, and the first gate line driver produces a normal image with sequential line scanning starting from the beginning of a frame, and the second gate line driver produces a dimmed image starting from a predetermined number of lines below at the same time to emulate one full sweep across a CRT. Therefore, a dimmed image is inserted into every digitized image, where a dimmed image is defined to be a digitized image with each pixel having a fraction 1/N of the original pixel value. The LCD panel drive using this driving method achieves performance closer to the impulse approach used in CRT displays, and the flickering phenomenon can be significantly rectified.
摘要翻译：公开了一种用于LCD面板的驱动方法，其中驱动电路包括多个数据线驱动器和至少两个栅极线驱动器，并且第一栅极线驱动器从帧的开始开始以顺序行扫描产生正常图像，并且第二栅极线驱动器同时产生从预定数量的线开始的模糊图像，以模拟跨CRT的一次全扫描。因此，将暗淡的图像插入到每个数字化图像中，其中将暗淡的图像定义为数字化图像，其中每个像素具有原始像素值的1 / N的分数。采用这种驱动方式的LCD面板驱动器实现了更接近CRT显示器使用的脉冲方式的性能，并且闪烁现象可以得到明显改善。

7. 发明授权

US07245295B2 Device and method of dynamic driving for liquid crystal display 失效
标题翻译：液晶显示器的动态驱动装置及方法
公开(公告)号：US07245295B2
公开(公告)日：2007-07-17
申请号：US10772930
申请日：2004-02-04
申请人： Cheng-Jung Chen , Jhih-Hong Jiang
发明人： Cheng-Jung Chen , Jhih-Hong Jiang
IPC分类号： G09G1/06
CPC分类号： G09G3/3611 , G09G2320/0252 , G09G2320/0261 , G09G2320/041 , G09G2320/0606 , G09G2320/0626
摘要： A dynamic driving device is disclosed. The device enhances the display effect of a dynamic image on a liquid crystal display by dynamically adjusting the driving voltage applied to a liquid crystal display's Graphic Processing Unit (GPU) or Central Processing Unit (CPU). The device utilizes a driving path selection unit to allow a user to specify a driving path through an operation interface, which in turn affects the variation of driving voltage applied on the Graphic Processing Unit by dynamically adjusting the drive to the liquid crystal display.
摘要翻译：公开了一种动态驱动装置。该装置通过动态地调整施加到液晶显示器的图形处理单元（GPU）或中央处理单元（CPU）的驱动电压来增强动态图像在液晶显示器上的显示效果。该装置利用驱动路径选择单元来允许用户通过操作界面指定驱动路径，这又通过动态地调整对液晶显示器的驱动来影响施加在图形处理单元上的驱动电压的变化。

8. 发明授权

US07215333B2 Method for driving LCD device 有权
标题翻译： LCD设备驱动方法
公开(公告)号：US07215333B2
公开(公告)日：2007-05-08
申请号：US10799046
申请日：2004-03-11
申请人： Chen-Jung Chen , Yuhren Shen , Liang-Chen Chien
发明人： Chen-Jung Chen , Yuhren Shen , Liang-Chen Chien
IPC分类号： G09G5/00
CPC分类号： G09G3/3666 , G09G2310/0251 , G09G2310/04 , G09G2310/062
摘要： Disclosed is a method for driving pixels of an LCD device, wherein an overlapping area between a data line connected to a data driver and a gate line connected to a gate driver defines a pixel of an LCD device. A first gate driver is selected from the LCD device' at least two gate drivers based on a selection rule. Starting from a line A, the first gate driver displays a part of a picture image by sequentially displaying the image line by line up to a number of lines according to a pre-determined display range. Then a second gate driver based on the selection rule displays a part of an all black image by displaying, from a line B, a number of lines based on a pre-determined display range simultaneously. The line B is separated from the line A by a number of lines according to a pre-determined gap range.
摘要翻译：公开了一种用于驱动LCD器件的像素的方法，其中连接到数据驱动器的数据线与连接到栅极驱动器的栅极线之间的重叠区域定义了LCD器件的像素。基于选择规则，从LCD装置的至少两个栅极驱动器中选择第一栅极驱动器。从行A开始，第一栅极驱动器通过根据预定的显示范围逐行地依次显示图像行直到多行，来显示图像的一部分。然后，基于选择规则的第二栅极驱动器通过基于预定的显示范围同时从线B显示多条线来显示全部黑色图像的一部分。线B根据预定的间隙范围与线A分离多行。

9. 发明申请

US20050275645A1 Method of increasing image gray-scale response speed 有权
标题翻译：增加图像灰度响应速度的方法
公开(公告)号：US20050275645A1
公开(公告)日：2005-12-15
申请号：US10866028
申请日：2004-06-14
申请人： Yuh-Ren Shen , Cheng-Jung Chen
发明人： Yuh-Ren Shen , Cheng-Jung Chen
IPC分类号： G09G3/20 , G09G3/36
CPC分类号： G09G3/2011 , G09G3/3648 , G09G2310/0205 , G09G2310/061
摘要： A method of increasing image gray-scale response speed comprising the following steps: to divide plural driven gate lines of an LCD into plural areas; to divide the frame interval time relative to the plural areas into plural sub-intervals, and to sequentially activate each first gate line of these areas during a time period of synchronized signals, then to sequentially activate the next gate lines of these areas, the operation is repeated; to apply an advance voltage to at least a gate line to overdrive frames, and to apply an image data voltage to at least a gate line; to repeat the above steps until the end of the entire frame interval time and to enter the next frame interval. The LCD can be fast driven by dividing of time and space. The method suits for treatment of frames of displays of various LCD's and organic light emitting diodes (OLED's).
摘要翻译：一种提高图像灰度响应速度的方法，包括以下步骤：将LCD的多个驱动栅极线分成多个区域; 将相对于多个区域的帧间隔时间分割为多个子间隔，并且在同步信号的时间段期间顺序地激活这些区域的每个第一栅极线，然后顺序地激活这些区域的下一个栅极线，操作重复; 将至少栅极线上的提前电压施加到过驱动帧，并且将图像数据电压施加到至少栅极线; 重复上述步骤，直到整个帧间隔时间结束，并进入下一个帧间隔。 LCD可以通过时间和空间的划分来快速驱动。该方法适用于各种LCD和有机发光二极管（OLED）的显示器框架的处理。

10. 发明授权

US09794992B1 Universal method for driving LEDs using high voltage 有权
公开(公告)号：US09794992B1
公开(公告)日：2017-10-17
申请号：US15496029
申请日：2017-04-25
申请人： VastView Technology Inc.
发明人： Hung-Chi Chu , Yuhren Shen
IPC分类号： H05B37/02 , H05B33/08 , G01R19/04
CPC分类号： H05B33/0842 , G01R19/04 , H05B33/0824 , H05B33/083 , H05B37/0227
摘要： An apparatus for driving LEDs using high voltage includes two LED driving circuits and two switches that can be turned on or off by a universal controller so as to connect the two LED driving circuits in two different configurations. When the input voltage is in a range from rectified 90 volt AC to rectified 140 volt AC, the two switches are controlled in such a way that the two LED driving circuits are connected in parallel. When the input voltage VIN is in a range from rectified 180 volt AC to rectified 265 volt AC, the two switches are controlled to connect the LED segments of the LED unit in one LED driving circuit in series with the other LED driving circuit.

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