公开(公告)号：US08547366B2

公开(公告)日：2013-10-01

申请号：US12785681

申请日：2010-05-24

Applicant: Ping-Lin Liu ,  Tse-Yuan Chen

Inventor： Ping-Lin Liu ,  Tse-Yuan Chen

IPC: G09G5/00

CPC classification number: G09G3/20 ,  G09G2310/0286 ,  G11C19/184 ,  G11C19/28

Abstract: A driving device outputting a plurality of sequentially asserted driving signals is provided, including a shift register, a buffer unit, and switch circuits. The shift register includes shift registering units coupled in series. The shift registering units respectively generate shift registering signals which are sequentially asserted. The buffer unit receives at least one input signal. The input signal is periodically asserted, and the buffer unit outputs the input signal. The switch circuits are coupled to the shift registering units to receive the shift registering signals, respectively. All of the switch circuits are coupled to the buffer unit to receive the input signal, and the switch circuits sequentially output the input signal to serve as the driving signals according to the assertion of the shift registering signals.

Abstract translation: 提供输出多个顺序断言的驱动信号的驱动装置，包括移位寄存器，缓冲单元和开关电路。 移位寄存器包括串联耦合的移位寄存单元。 移位登记单元分别产生顺序地被确认的移位登记信号。 缓冲单元接收至少一个输入信号。 周期性地输入输入信号，缓冲单元输出输入信号。 开关电路被耦合到移位寄存单元以分别接收移位寄存信号。 所有开关电路都耦合到缓冲单元以接收输入信号，并且开关电路根据移位寄存信号的断言顺序输出输入信号作为驱动信号。

公开(公告)号：US08111216B2

公开(公告)日：2012-02-07

申请号：US11954257

申请日：2007-12-12

Applicant: Chuan-Yi Chan ,  Ping-Lin Liu ,  Du-Zen Peng

Inventor： Chuan-Yi Chan ,  Ping-Lin Liu ,  Du-Zen Peng

IPC: G09G3/30

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2320/0223 ,  G09G2320/0233

Abstract: A pixel driving circuit comprises a storage capacitor, a transistor, a transfer circuit, a driving element, and a switch circuit. The storage capacitor comprises first and second nodes. The transistor has a gate coupled to a discharge signal and is coupled between the first and second nodes. The discharge signal turns on the transistor in first and second discharge periods to discharge the storage capacitor. The transfer circuit outputs a data signal or a reference signal to the first node of the storage capacitor. The switch circuit is coupled to the driving element, a first display element and a second display element. The switch circuit can make the driving element diode-connected in first and second data load periods, and allow a driving current through a first display element in a first light-emitting period and a second display element in a second light-emitting period.

Abstract translation: 像素驱动电路包括存储电容器，晶体管，传输电路，驱动元件和开关电路。 存储电容器包括第一和第二节点。 晶体管具有耦合到放电信号的栅极，并耦合在第一和第二节点之间。 放电信号在第一和第二放电周期中导通晶体管，以放电存储电容器。 传送电路将数据信号或参考信号输出到存储电容器的第一节点。 开关电路耦合到驱动元件，第一显示元件和第二显示元件。 开关电路可以使驱动元件在第一和第二数据负载时段二极管连接，并且允许在第二发光周期中通过第一发光周期中的第一显示元件的驱动电流和第二显示元件的驱动电流。

公开(公告)号：US20110135050A1

公开(公告)日：2011-06-09

申请号：US12955686

申请日：2010-11-29

Applicant: Ping-Lin Liu

Inventor： Ping-Lin Liu

IPC: G11C19/28

CPC classification number: G11C19/28

Abstract: An electronic system including a shift register is disclosed. The shift register includes a first transistor, a first trigger circuit, a second transistor, and a second trigger circuit. The first transistor receives a first input signal. The first trigger circuit is serially connected to the first transistor between a first level and a second level and is connected with the first transistor in a first node. The second transistor receives a second input signal inverted to the first input signal. The second trigger circuit receives the level of the first node, is serially connected to the second transistor between a third level and the second level, and is connected with the second transistor in a second node.

Abstract translation: 公开了一种包括移位寄存器的电子系统。 移位寄存器包括第一晶体管，第一触发电路，第二晶体管和第二触发电路。 第一晶体管接收第一输入信号。 第一触发电路在第一电平和第二电平之间串联连接到第一晶体管，并且在第一节点中与第一晶体管连接。 第二晶体管接收与第一输入信号反相的第二输入信号。 第二触发电路接收第一节点的电平，在第三电平和第二电平之间串联连接到第二晶体管，并在第二节点与第二晶体管连接。

公开(公告)号：US07876293B2

公开(公告)日：2011-01-25

申请号：US11894191

申请日：2007-08-20

Applicant: Ping-Lin Liu

Inventor： Ping-Lin Liu

IPC: G09G3/30

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2320/043

Abstract: An image display system comprises a pixel driving circuit. A storage capacitor is coupled between the first and second nodes. The first switch is turned on in the first and second periods. The second switch, coupled to the first node, is turned on in the first and second periods. The third switch, coupled between the second node and the first switch, is turned on in the first, third and fourth periods. The fourth switch, coupled between the second switch and the first voltage, is turned on in the first, third and fourth periods. The fifth switch, coupled between the second node and the first voltage, is turned on in the first, second and third periods. The sixth switch, coupled between the first node and the reference voltage, is turned on in the fourth period. The first transistor is coupled between the first and second switches and is turned on in the fourth period. During the second period, the voltage between source and gate of the first transistor is a threshold voltage. The electroluminescent element emits light in the fourth period.

Abstract translation: 图像显示系统包括像素驱动电路。 存储电容器耦合在第一和第二节点之间。 第一个开关在第一个和第二个周期被打开。 耦合到第一节点的第二开关在第一和第二周期中导通。 耦合在第二节点和第一开关之间的第三开关在第一，第三和第四周期中导通。 耦合在第二开关和第一电压之间的第四开关在第一，第三和第四周期中导通。 耦合在第二节点和第一电压之间的第五开关在第一，第二和第三周期中导通。 耦合在第一节点和参考电压之间的第六开关在第四周期中导通。 第一晶体管耦合在第一和第二开关之间，并且在第四周期中导通。 在第二周期期间，第一晶体管的源极和栅极之间的电压是阈值电压。 电致发光元件在第四周期发光。

公开(公告)号：US07817120B2

公开(公告)日：2010-10-19

申请号：US11801162

申请日：2007-05-08

Applicant: Du-Zen Peng ,  Ping-Lin Liu

Inventor： Du-Zen Peng ,  Ping-Lin Liu

IPC: G09G3/30

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2320/0223 ,  G09G2320/0233

Abstract: A pixel driving circuit with threshold voltage and power supply voltage compensation. The pixel circuit includes a storage capacitor, a transistor, a transfer circuit, a driving element, and a switching circuit. The transistor has a gate coupled to a discharge signal and is coupled between a first node and a second node. The discharge signal directs the transistor to turn on and then discharges the storage capacitor in a first period. The transfer circuit transfers a data signal or a reference signal to a first node of the storage capacitor. The driving element has a first terminal coupled to a first voltage, a second terminal coupled to a second node of the storage capacitor and a third terminal outputting a driving current. The switching circuit is coupled between the driving element and a display element. The switching circuit can be controlled to diode-connect the driving element in a second period, allowing the driving current to be output to the display element in a third time period.

Abstract translation: 具有阈值电压和电源电压补偿的像素驱动电路。 像素电路包括存储电容器，晶体管，传输电路，驱动元件和开关电路。 晶体管具有耦合到放电信号的栅极，并且耦合在第一节点和第二节点之间。 放电信号引导晶体管导通，然后在第一周期内放电存储电容器。 传送电路将数据信号或参考信号传送到存储电容器的第一节点。 驱动元件具有耦合到第一电压的第一端子，耦合到存储电容器的第二节点的第二端子和输出驱动电流的第三端子。 开关电路耦合在驱动元件和显示元件之间。 可以控制开关电路以在第二时间段内对驱动元件进行二极管连接，从而允许在第三时间段内将驱动电流输出到显示元件。

公开(公告)号：US20100164943A1

公开(公告)日：2010-07-01

申请号：US12648116

申请日：2009-12-28

Applicant: Ping-Lin Liu

Inventor： Ping-Lin Liu

IPC: G06F3/038 ,  G09G3/30 ,  G09G3/36

CPC classification number: G09G3/3677 ,  G09G3/3266 ,  G09G2320/0209 ,  G09G2320/0223

Abstract: A display panel includes a gate line circuit. The gate line circuit includes a gate driver, a control circuit and a gate line. The gate driver generates a first driving signal with alternate high and low levels. The first driving signal has a first rising edge and a first falling edge. The control circuit receives the first driving signal and generates a second driving signal. The second driving signal has a second rising edge and a second falling edge. The second rising edge and the second falling edge are respectively smoother than the first rising edge and the first falling edge. The control circuit includes at least one capacitor. The capacitor is charged in a first direction in response to the first rising edge of the first driving signal. The capacitor is charged in a second direction in response to the first falling edge of the first driving signal.

Abstract translation: 显示面板包括栅极线电路。 栅极线电路包括栅极驱动器，控制电路和栅极线。 栅极驱动器产生具有交替的高电平和低电平的第一驱动信号。 第一驱动信号具有第一上升沿和第一下降沿。 控制电路接收第一驱动信号并产生第二驱动信号。 第二驱动信号具有第二上升沿和第二下降沿。 第二上升沿和第二下降沿分别比第一上升沿和第一下降沿平滑。 控制电路包括至少一个电容器。 响应于第一驱动信号的第一上升沿，电容器沿第一方向充电。 响应于第一驱动信号的第一下降沿，电容器在第二方向充电。

公开(公告)号：US20100026676A1

公开(公告)日：2010-02-04

申请号：US12503388

申请日：2009-07-15

Applicant: Ping-Lin Liu

Inventor： Ping-Lin Liu

IPC: G09G5/00

CPC classification number: G09G3/20 ,  G09G3/3696 ,  G09G2330/028

Abstract: A display system is disclosed in the present invention, which includes a low drop-out voltage regulator (LDO) for receiving an input voltage and providing a stable output voltage. The low drop-out voltage regulator includes a regulating circuit, a first switch, a current source circuit and an inverting circuit. The regulating circuit has a regulating circuit input, a regulating circuit output and a regulating circuit control terminal. The first switch selectively forms short or open circuit in accordance with ON/OFF states thereof. The current source circuit provides a fixed current to the control terminal and the output of the regulating circuit. The inverting circuit has an inverting circuit input coupled to the regulating circuit output and an inverting circuit output terminal coupled to the regulating circuit control terminal, the inverting circuit inverting the output voltage from the regulating circuit output. The regulating circuit control terminal adjusts the output voltage in accordance with a control voltage received thereof.

Abstract translation: 在本发明中公开了一种显示系统，其包括用于接收输入电压并提供稳定输出电压的低压降电压调节器（LDO）。 低压降稳压器包括调节电路，第一开关，电流源电路和反相电路。 调节电路具有调节电路输入，调节电路输出和调节电路控制端。 第一开关根据其ON / OFF状态选择性地形成短路或开路。 电流源电路向控制端和调节电路的输出提供固定电流。 反相电路具有耦合到调节电路输出的反相电路输入和耦合到调节电路控制端的反相电路输出端，反相电路使调节电路输出的输出电压反相。 调节电路控制端子根据其接收到的控制电压来调节输出电压。

公开(公告)号：US07385441B2

公开(公告)日：2008-06-10

申请号：US11535499

申请日：2006-09-27

Applicant: Ping-Lin Liu

Inventor： Ping-Lin Liu

IPC: H03K7/08

CPC classification number: H03K19/01714

Abstract: A buffer circuit has a first transistor and a second transistor in a cascode, and a buffer switch coupled from an output of the buffer to a gate of the second transistor. The buffer circuit is bootstrapped by a bootstrap capacitor, a diode circuit, and a bootstrap switch. The bootstrap capacitor is coupled from the output to the gate of the second transistor through the bootstrap switch. A potential difference is set up across the bootstrap capacitor through the diode circuit. When a low input is given to the buffer circuit, the second transistor turns off and the output goes to a high bias voltage through the first transistor. When a high input is given, the first transistor turns off, the second transistor turns on, and as the output goes low, the gate of the second transistor is bootstrapped to drop the output completely down to a low bias voltage.

Abstract translation: 缓冲电路具有共源共栅中的第一晶体管和第二晶体管，以及从缓冲器的输出端耦合到第二晶体管的栅极的缓冲器开关。 缓冲电路由自举电容器，二极管电路和自举开关自举。 自举电容器通过自举开关从输出端耦合到第二晶体管的栅极。 通过二极管电路在自举电容器之间建立电位差。 当向缓冲器电路提供低输入时，第二晶体管截止，并且输出通过第一晶体管达到高偏置电压。 当给定高输入时，第一晶体管截止，第二晶体管导通，并且随着输出变低，第二晶体管的栅极被自举地将输出完全降低到低偏置电压。

公开(公告)号：US08754708B2

公开(公告)日：2014-06-17

申请号：US13567151

申请日：2012-08-06

Applicant: Ping Lin Liu

Inventor： Ping Lin Liu

IPC: H03F3/45

CPC classification number: H03F1/0205 ,  H03F3/3022 ,  H03F3/45381 ,  H03F2200/408 ,  H03F2203/45674 ,  H03F2203/45728

Abstract: The present invention relates to an operational amplifier comprising an input-stage circuit, a floating current mirror circuit, and an output-stage circuit. The input-stage circuit receives an input signal and produces a control signal. The floating current mirror circuit is coupled to the input-stage circuit, and produces a mirror current according to the control signal. The output-stage circuit is coupled to the floating current mirror circuit, and produces a driving signal according to the mirror current. When the operational amplifier is operating in the static mode, the output-stage circuit further produces a static current according to the mirror current. Thereby, by using the floating current mirror circuit, the purpose of low power consumption can be achieved while driving to the high-voltage mode or to the low-voltage mode.

Abstract translation: 本发明涉及一种运算放大器，包括输入级电路，浮动电流镜电路和输出级电路。 输入级电路接收输入信号并产生控制信号。 浮动电流镜电路耦合到输入级电路，并根据控制信号产生镜电流。 输出级电路耦合到浮动电流镜电路，并根据镜电流产生驱动信号。 当运算放大器工作在静态模式时，输出级电路进一步根据镜电流产生静态电流。 因此，通过使用浮动电流镜电路，可以在驱动到高压模式或低电压模式时实现低功耗的目的。

公开(公告)号：US20130027008A1

公开(公告)日：2013-01-31

申请号：US13556716

申请日：2012-07-24

Applicant: Ping Lin LIU

Inventor： Ping Lin LIU

IPC: G05F1/46

CPC classification number: G06F1/26 ,  G09G3/3696 ,  G09G2330/021 ,  G09G2330/026 ,  G09G2330/027 ,  Y10S323/901

Abstract: The present relates to a start-up circuit, which is used for starting up a variable power supply circuit, which comprises a detection circuit and a transition circuit. The detection circuit is used for detecting an output voltage of the variable power supply and producing a detection signal. The transition circuit is coupled to the detection circuit. It transits the level of the detection signal and produces a control signal for starting up or cutting off the variable power supply. Thereby, the problem of incapability in transition can be avoided as well as achieving the purpose of low power consumption.

Abstract translation: 本发明涉及一种启动电路，其用于启动包括检测电路和转换电路的可变电源电路。 检测电路用于检测可变电源的输出电压并产生检测信号。 转换电路耦合到检测电路。 它转换检测信号的电平并产生用于启动或切断可变电源的控制信号。 因此，能够避免转移不能力的问题，而且能够实现低功耗的目的。