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1. 发明授权

US09280928B2 Apparatus and method for driving LED display 有权
标题翻译： LED显示屏驱动装置及方法
公开(公告)号：US09280928B2
公开(公告)日：2016-03-08
申请号：US14056742
申请日：2013-10-17
申请人： SCT TECHNOLOGY, LTD.
发明人： Eric Li , Shean-Yih Chiou , Shang-Kuan Tang , Xinchao Peng
IPC分类号： G09G3/32
CPC分类号： G09G3/32 , G09G2310/0216 , G09G2310/0245 , G09G2310/08 , G09G2320/0233 , G09G2330/06 , H03L7/1974
摘要： An apparatus for driving LED display includes a plurality of phase locked loop circuits. Each of the phase locked loop circuits includes a divider configured to receive the voltage controlled output signal and generate the feedback signal, a memory configured to generate a modulation profile codes and a sigma delta block. The divider receives a randomized numbers so as to change a dividing ratio over a modulation period. The sigma delta block includes at least one sigma delta modulator and at least one gain block. The sigma delta block is configured to receive the modulation profile codes and generate the randomized numbers to the divider. Each of the at least one gain block is configured to generate a value that is multiplied to at least one of the at least one sigma delta modulator so as to change a spread spectrum modulation depth.
摘要翻译：用于驱动LED显示器的装置包括多个锁相环电路。每个锁相环电路包括被配置为接收压控输出信号并产生反馈信号的分频器，被配置为产生调制分布码和Σ-Δ块的存储器。分频器接收随机数，以便在调制周期上改变分频比。 Σ-Δ块包括至少一个Σ-Δ调制器和至少一个增益块。 Σ-Δ块被配置为接收调制分布码，并将该随机化的数字产生到分频器。所述至少一个增益块中的每一个被配置为生成与所述至少一个Σ-Δ调制器中的至少一个相乘的值，以便改变扩频调制深度。

2. 发明申请

US20150137705A1 APPARATUS AND METHOD FOR DRIVING LED DISPLAY 有权
标题翻译：用于驱动LED显示器的装置和方法
公开(公告)号：US20150137705A1
公开(公告)日：2015-05-21
申请号：US14082841
申请日：2013-11-18
申请人： SCT Technology, Ltd.
发明人： Eric LI , Shang-Kuan TANG , Shen LEI , Yi ZHANG
IPC分类号： G09G5/10
CPC分类号： G09G5/10 , G09G3/3283 , G09G2320/064 , G09G2330/12 , H03K2005/00202
摘要： This disclosure provides an output stage for a LED driver circuit. The output stage has an input module, a regulator module for maintaining a constant internal voltage, and an output module for generating output signals.
摘要翻译：本公开提供了用于LED驱动器电路的输出级。输出级具有输入模块，用于维持恒定的内部电压的调节器模块和用于产生输出信号的输出模块。

3. 发明授权

US08143794B1 Low voltage light source driving circuit 有权
标题翻译：低压光源驱动电路
公开(公告)号：US08143794B1
公开(公告)日：2012-03-27
申请号：US12403320
申请日：2009-03-12
申请人： Eric Li , Shang-Kuan Tang , Yi Zhang
发明人： Eric Li , Shang-Kuan Tang , Yi Zhang
IPC分类号： H05B41/36
CPC分类号： H05B33/0812
摘要： A low voltage LED (Light Emitting Diode) driving circuit operates under low supply voltage to provide stable and reliable control of LEDs. The LED driving circuit includes a switching transistor to turn on or off an output current in the LED. The LED driving circuit also includes a control transistor for controlling the level of the output current. The two transistors are coupled via a node that is maintained at a low voltage to increase the voltage across the switching transistor. The increased voltage across the switching transistor allows faster switching and more stable control over different levels of output voltage. The LED driver also includes circuit components for matching the turn-on times and turn-off times for different levels of the output current.
摘要翻译：低电压LED（发光二极管）驱动电路在低电源电压下工作，为LED提供稳定可靠的控制。 LED驱动电路包括用于导通或关断LED中的输出电流的开关晶体管。 LED驱动电路还包括用于控制输出电流电平的控制晶体管。两个晶体管经由保持在低电压的节点耦合以增加开关晶体管两端的电压。开关晶体管两端的增加的电压允许更快的开关和对不同输出电压电平的更稳定的控制。 LED驱动器还包括用于匹配不同电平输出电流的导通时间和关断时间的电路组件。

4. 发明授权

US09716085B2 Method for manufacturing a light emitted diode display 有权
公开(公告)号：US09716085B2
公开(公告)日：2017-07-25
申请号：US15337991
申请日：2016-10-28
申请人： SCT TECHNOLOGY, LTD.
发明人： Eric Li , Heng Liu , Sheanyih Chiou
IPC分类号： H01L21/70 , H01L25/00 , H01L23/00 , H01L25/075 , H01L21/67 , H01L21/683 , H01L21/66 , H01L25/16 , H01L25/18 , H01L33/00 , H01L33/62 , H01L27/15
CPC分类号： H01L25/50 , H01L21/67144 , H01L21/6831 , H01L21/6838 , H01L22/20 , H01L24/00 , H01L25/0753 , H01L25/167 , H01L25/18 , H01L27/156 , H01L33/0079 , H01L33/0095 , H01L33/62
摘要： A method for manufacturing a micro LED display is provided. The method includes providing a plurality of LED elements on a first substrate, transferring, using a magnetic holder or a vacuum holder, at least two of the plurality of LED elements of the same primary color from the first substrate to a second substrate, performing the steps of the providing and the transferring with respect to three primary colors, forming an array of RGB LED units on the second substrate, each of the array of RGB LED units including a red LED element, a green LED element, and a blue LED element, interposing the array of RGB LED units between the second substrate and an LED driver wafer, detaching the second substrate from the array of RGB LED units, and interposing the array of RGB LED units between the LED driver wafer and a cover.

5. 发明授权

US09698134B2 Method for manufacturing a light emitted diode display 有权
公开(公告)号：US09698134B2
公开(公告)日：2017-07-04
申请号：US14953246
申请日：2015-11-27
申请人： SCT TECHNOLOGY, LTD.
发明人： Eric Li , Heng Liu , Sheanyih Chiou
IPC分类号： H01L21/70 , H01L25/00 , H01L23/00 , H01L25/075 , H01L21/67 , H01L21/683 , H01L21/66 , H01L25/16 , H01L25/18 , H01L33/00 , H01L33/62 , H01L27/15
CPC分类号： H01L25/50 , H01L21/67144 , H01L21/6831 , H01L21/6838 , H01L22/20 , H01L24/00 , H01L25/0753 , H01L25/167 , H01L25/18 , H01L27/156 , H01L33/0079 , H01L33/0095 , H01L33/62
摘要： A method for manufacturing a micro LED display is provided. The method includes providing a plurality of LED elements on a first substrate, transferring, using a magnetic holder or a vacuum holder, at least two of the plurality of LED elements of the same primary color from the first substrate to a second substrate, performing the steps of the providing and the transferring with respect to three primary colors, forming an array of RGB LED units on the second substrate, each of the array of RGB LED units including a red LED element, a green LED element, and a blue LED element, interposing the array of RGB LED units between the second substrate and an LED driver wafer, detaching the second substrate from the array of RGB LED units, and interposing the array of RGB LED units between the LED driver wafer and a cover.

6. 发明授权

US09390647B2 Pulse width correction for LED display driver 有权
标题翻译： LED显示驱动器的脉冲宽度校正
公开(公告)号：US09390647B2
公开(公告)日：2016-07-12
申请号：US14337165
申请日：2014-07-21
申请人： SCT TECHNOLOGY, LTD.
发明人： Eric Li , Shang-Kuan Tang , Wenjie Yang , Yi Zhang
IPC分类号： G09G3/30 , G09G3/34 , G09G3/32
CPC分类号： G09G3/32 , G09G3/2014 , G09G3/3413 , G09G2320/0285 , G09G2320/064 , G09G2320/0666 , G09G2330/06
摘要： The LED display system comprises an array of LEDs and a driver circuit that employs a scrambled PWM generator. The scrambled PWM generator is configured to generate a plurality of PWM pulses. The PWM pulses are distributed into a corresponding number of refresh segments. The driver circuit is configured so that one or more of PWM pulses are extendable by a certain offset value so that the pulse width in the corresponding refresh segments is wide enough for the LED to emit light.
摘要翻译： LED显示系统包括LED阵列和采用加扰PWM发生器的驱动电路。加扰PWM发生器被配置为产生多个PWM脉冲。 PWM脉冲被分配到相应数量的刷新段。驱动器电路被配置为使得一个或多个PWM脉冲可延伸某个偏移值，使得相应的刷新段中的脉冲宽度足够大以使LED发光。

7. 发明授权

US09286825B2 Apparatus and method for driving LED display 有权
标题翻译： LED显示屏驱动装置及方法
公开(公告)号：US09286825B2
公开(公告)日：2016-03-15
申请号：US14056699
申请日：2013-10-17
申请人： SCT TECHNOLOGY, LTD.
发明人： Eric Li , Shean-Yih Chiou , Shang-Kuan Tang , Xinchao Peng
IPC分类号： G09G3/32 , G09G3/20 , G09G5/12
CPC分类号： G09G3/32 , G09G3/2088 , G09G5/12 , G09G2330/06
摘要： The apparatus for driving LED display includes a system control unit having a synchronization signal generator configured to generate a synchronization start signal and a plurality of phase locked loop circuits. Each of the phase locked loop circuits includes a divider coupled to the voltage controlled oscillator and configured to change the sequence of dividing ratios over a modulation period, a sigma delta modulator configured to generate a sequence of random numbers to the divider, and a spread spectrum modulation depth controller coupled to the sigma delta modulator and configured to receive the synchronization start signal from the synchronization signal generator. Upon receipt of the synchronization start signal, the spread spectrum modulation depth controller starts a spread spectrum modulation.
摘要翻译：用于驱动LED显示器的装置包括具有同步信号发生器的系统控制单元，其被配置为产生同步起始信号和多个锁相环电路。每个锁相环电路包括耦合到压控振荡器并被配置为在调制周期上改变分频比的序列的分频器，配置成产生分频器的随机数序列的Σ-Δ调制器，以及扩展频谱调制深度控制器，其耦合到所述Σ-Δ调制器并且被配置为从所述同步信号发生器接收所述同步开始信号。在接收到同步开始信号时，扩频调制深度控制器开始扩频调制。

8. 发明授权

US08462025B2 Signal transmission between a controller and an optical pickup unit 有权
标题翻译：控制器和光学拾取单元之间的信号传输
公开(公告)号：US08462025B2
公开(公告)日：2013-06-11
申请号：US13350602
申请日：2012-01-13
申请人： Eric Li , Shang-Kuan Tang , Nedi Nadershahi
发明人： Eric Li , Shang-Kuan Tang , Nedi Nadershahi
IPC分类号： H03M5/00
CPC分类号： H03M5/06 , G11B7/126 , G11B20/10027 , G11B20/1407 , G11B2220/2537
摘要： An improved transmission protocol is used to transmit a signal between two components of an electronic device. The improved transmission protocol is configured to reduce the number of simultaneous channel transitions that occur when multiple signal channels are transmitted in parallel. Reducing the number of simultaneous channel transitions is beneficial because a signal that is subject to skew, distortion, or electromagnetic interference during transmission may have a shorter settling time when fewer channels undergo a transition simultaneously. When the protocol is used to transmit a signal from a controller to an optical pickup unit in an optical data storage system, the reduced settling times allow for a higher data transmission rate.
摘要翻译：改进的传输协议用于在电子设备的两个组件之间传输信号。改进的传输协议被配置为减少当多个信号信道并行发送时发生的同时信道转换的数量。减少同时信道转换的数量是有益的，因为在较少信道同时进行转换时，在发送期间经受偏斜，失真或电磁干扰的信号可能具有较短的建立时间。当协议用于在光学数据存储系统中将信号从控制器发送到光学拾取单元时，减小的建立时间允许更高的数据传输速率。

9. 发明申请

US20120206430A1 CIRCUITS FOR ELIMINATING GHOSTING PHENOMENA IN DISPLAY PANEL HAVING LIGHT EMITTERS 有权
标题翻译：用于消除具有发光体的显示面板中的GHOSTING PHENOMENA的电路
公开(公告)号：US20120206430A1
公开(公告)日：2012-08-16
申请号：US13397669
申请日：2012-02-15
申请人： Eric Li , Chun Lu , Jianxin Xue , Wenjie Yang , Watt Li , Yutao Chen , Zhifeng Wen , Shean-Yih Chiou , Shang-kuan Tang , Nedi Nadershashi
发明人： Eric Li , Chun Lu , Jianxin Xue , Wenjie Yang , Watt Li , Yutao Chen , Zhifeng Wen , Shean-Yih Chiou , Shang-kuan Tang , Nedi Nadershashi
IPC分类号： G09G5/00 , G09G3/32
CPC分类号： G09G3/32 , G09G2300/06 , G09G2310/0248 , G09G2310/0275 , G09G2330/025 , G09G2330/04
摘要： The present disclosure provides a circuit for discharging parasitic capacitance in a display panel with common-anode topology having a plurality of light emitters, as well as a circuit for charging parasitic capacitance in a display panel with common-cathode topology. In the common-cathode topology, the circuit includes a three-terminal device having a gate, a source, and a drain, wherein one of the source and the drain is electrically coupled to a common cathode of the light emitters, and a mechanism for controlling the three-terminal device, the mechanism being electrically coupled to the gate. Shortly after a previously selected light emitter is unselected, the mechanism turns on the three-terminal device to form a conductive path between the source and the drain. The mechanism turns off the three-terminal device after a voltage at the common cathode is increased to a predetermined voltage level or after a maximum period of time lapses.
摘要翻译：本公开提供了一种用于在具有多个发光体的共阳极拓扑的显示面板中放电寄生电容的电路，以及用于在具有共阴极拓扑的显示面板中对寄生电容进行充电的电路。在共阴极拓扑中，电路包括具有栅极，源极和漏极的三端子器件，其中源极和漏极之一电耦合到发光体的公共阴极，以及用于控制三端子装置，该机构电耦合到栅极。在未选择先前选择的光发射器之后不久，该机构使三端子器件导通，以在源极和漏极之间形成导电路径。在公共阴极上的电压增加到预定电压电平之后或经过最大时间段之后，该机构关闭三端子器件。

10. 发明授权

US09955542B2 Apparatus and method for driving LED display panel 有权
公开(公告)号：US09955542B2
公开(公告)日：2018-04-24
申请号：US15237040
申请日：2016-08-15
申请人： SCT TECHNOLOGY, LTD.
发明人： Eric Li , Shang-Kuan Tang , Wenjie Yang , Lei Shen , Yi Zhang , Yutao Chen , Shahnad Nadershahi
IPC分类号： H05B33/00 , H05B33/08 , G09G3/32
CPC分类号： H05B33/0845 , G09G3/32 , G09G2310/0267 , G09G2310/08 , G09G2320/064 , H05B33/0815 , H05B33/086
摘要： The present disclosure provides devices, circuits, and methods for driving an LED display panel, so as to ensure the delivery of equal global charge at minimum gray scale. In one example, the circuit of the present disclosure includes a current source, a detection module, and a measurement module. The current source is configured to generate a current signal for the LEDs. The detection module is configured to detect a forward voltage of the LEDs in response to a low current applied to the LEDs. The detection module is further configured to hold the detected forward voltage. The measurement module is configured to measure a time period for an anode voltage of the LEDs to rise to the detected forward voltage in response to a display current applied to the LEDs.

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