公开(公告)号：US20120194575A1

公开(公告)日：2012-08-02

申请号：US13442882

申请日：2012-04-10

Applicant: Chih-Jen Yen ,  Yueh-Hsiu Liu ,  Ju-Lin Huang ,  Peng-Yu Chen ,  Yu-Shao Liu

Inventor： Chih-Jen Yen ,  Yueh-Hsiu Liu ,  Ju-Lin Huang ,  Peng-Yu Chen ,  Yu-Shao Liu

IPC: G09G5/10

CPC classification number: G09G3/3696 ,  G09G3/3614 ,  G09G3/3688 ,  G09G2310/027 ,  G09G2310/0297 ,  G09G2320/0673

Abstract: A gamma-voltage generator is provided to generating a plurality of first gamma voltages and second gamma voltages. At least one of the first gamma voltages generated by DACs of the gamma-voltage generator within a first frame period and at least one of the second gamma voltages generated by the DACs within a second frame period are outputted from a same one of the gamma buffers of the gamma-voltage generator, whereby the transmitted gamma voltages have substantially equal offset. Therefore, the display quality approaches an ideal condition.

Abstract translation: 提供伽马电压发生器以产生多个第一伽马电压和第二伽马电压。 在第一帧周期内由伽马电压发生器的DAC产生的第一伽马电压中的至少一个和由第二帧周期内的DAC产生的第二伽马电压中的至少一个从相同的一个伽马缓冲器输出 的γ电压发生器，由此所传输的伽马电压具有基本相等的偏移。 因此，显示质量接近理想状态。

公开(公告)号：US08344802B2

公开(公告)日：2013-01-01

申请号：US13090254

申请日：2011-04-20

Applicant: Ju-Lin Huang ,  Peng-Yu Chen

Inventor： Ju-Lin Huang ,  Peng-Yu Chen

IPC: H03F3/45

CPC classification number: H03F3/45475 ,  H03F1/086 ,  H03F2200/408 ,  H03F2203/45512

Abstract: An operational amplifier device includes an operational amplifier, a first transmission gate, and a first switch module. The operational amplifier includes an output stage, which has a first signal input terminal and a signal output terminal, and outputs an output voltage at the signal output terminal. The first transmission gate is coupled between the signal output terminal and a transmission output terminal, having a first transmission control terminal. The first switch module is utilized for controlling electrical connection between the first signal input terminal and the first transmission control terminal. During a first transmission period, the first switch module controls the first transmission control terminal to be coupled to the first signal input terminal, thereby conducting the first transmission gate to not only transmit the output voltage but also act as a Miller capacitor.

Abstract translation: 运算放大器装置包括运算放大器，第一传输门和第一开关模块。 运算放大器包括具有第一信号输入端和信号输出端的输出级，并输出信号输出端的输出电压。 第一传输门耦合在信号输出端和具有第一传输控制终端的传输输出端之间。 第一开关模块用于控制第一信号输入端和第一变速器控制端之间的电连接。 在第一传输周期期间，第一开关模块控制第一传输控制终端耦合到第一信号输入端，从而使第一传输门不仅传输输出电压，而且还充当米勒电容器。

公开(公告)号：US08593389B2

公开(公告)日：2013-11-26

申请号：US13442882

申请日：2012-04-10

Applicant: Chih-Jen Yen ,  Yueh-Hsiu Liu ,  Ju-Lin Huang ,  Peng-Yu Chen ,  Yu-Shao Liu

Inventor： Chih-Jen Yen ,  Yueh-Hsiu Liu ,  Ju-Lin Huang ,  Peng-Yu Chen ,  Yu-Shao Liu

IPC: G09G3/36

CPC classification number: G09G3/3696 ,  G09G3/3614 ,  G09G3/3688 ,  G09G2310/027 ,  G09G2310/0297 ,  G09G2320/0673

Abstract: A gamma-voltage generator is provided to generating a plurality of first gamma voltages and second gamma voltages. At least one of the first gamma voltages generated by DACs of the gamma-voltage generator within a first frame period and at least one of the second gamma voltages generated by the DACs within a second frame period are outputted from a same one of the gamma buffers of the gamma-voltage generator, whereby the transmitted gamma voltages have substantially equal offset. Therefore, the display quality approaches an ideal condition.

公开(公告)号：US20120188012A1

公开(公告)日：2012-07-26

申请号：US13090254

申请日：2011-04-20

Applicant: Ju-Lin Huang ,  Peng-Yu Chen

Inventor： Ju-Lin Huang ,  Peng-Yu Chen

IPC: H03F3/45

CPC classification number: H03F3/45475 ,  H03F1/086 ,  H03F2200/408 ,  H03F2203/45512

Abstract: An operational amplifier device includes an operational amplifier, a first transmission gate, and a first switch module. The operational amplifier includes an output stage, which has a first signal input terminal and a signal output terminal, and outputs an output voltage at the signal output terminal. The first transmission gate is coupled between the signal output terminal and a transmission output terminal, having a first transmission control terminal. The first switch module is utilized for controlling electrical connection between the first signal input terminal and the first transmission control terminal. During a first transmission period, the first switch module controls the first transmission control terminal to be coupled to the first signal input terminal, thereby conducting the first transmission gate to not only transmit the output voltage but also act as a Miller capacitor.

Abstract translation: 运算放大器装置包括运算放大器，第一传输门和第一开关模块。 运算放大器包括具有第一信号输入端和信号输出端的输出级，并输出信号输出端的输出电压。 第一传输门耦合在信号输出端和具有第一传输控制终端的传输输出端之间。 第一开关模块用于控制第一信号输入端和第一传输控制端之间的电连接。 在第一传输周期期间，第一开关模块控制第一传输控制终端耦合到第一信号输入端，从而使第一传输门不仅传输输出电压，而且还充当米勒电容器。

公开(公告)号：US08536946B2

公开(公告)日：2013-09-17

申请号：US13275319

申请日：2011-10-18

Applicant: Ju-Lin Huang ,  Chun-Yung Cho ,  Yu-Shao Liu

Inventor： Ju-Lin Huang ,  Chun-Yung Cho ,  Yu-Shao Liu

IPC: H03F3/45

CPC classification number: H03F3/45183 ,  H03F1/0277 ,  H03F3/211

Abstract: An output error compensation method adapted to a multi-input operational amplifier is disclosed. The output error compensation method includes following steps. A plurality of original transconductances of a plurality of differential pairs is obtained regarding a specific combination of input voltages received by the differential pairs. Transconductance differences of a plurality of adjustable differential pairs among the differential pairs are obtained according to the original transconductances. Adjusted transconductance of the adjustable differential pairs are obtained according to the original transconductances and the transconductance differences. Transconductances of the adjustable differential pairs are respectively adjusted according to the adjusted transconductances, so that an output voltage can match an expected value when each of a plurality of combinations of the input voltages is received.

Abstract translation: 公开了一种适用于多输入运算放大器的输出误差补偿方法。 输出误差补偿方法包括以下步骤。 关于由差分对接收的输入电压的特定组合，获得多个差分对的多个原始跨导。 根据原始跨导获得差分对之间的多个可调差分对的跨导差异。 根据原始跨导和跨导差异，可调节差分对的跨导。 可调节差分对的跨导根据调节的跨导分别调整，使得当输入电压的多个组合中的每一个被接收时，输出电压可以匹配期望值。

公开(公告)号：US08174481B2

公开(公告)日：2012-05-08

申请号：US12690087

申请日：2010-01-19

Applicant: Ju-Lin Huang

Inventor： Ju-Lin Huang

IPC: G09G3/36

CPC classification number: G09G3/3688 ,  G09G3/3614 ,  G09G2310/027 ,  G09G2310/0297 ,  G09G2320/0673

Abstract: A driving circuit of a liquid crystal display including a first input port, a second input port, a first gamma buffer, a second gamma buffer, and a switching circuit is provided. A plurality of first gamma voltages are inputted from the first input port, and a plurality of second gamma voltages are inputted from the second input port. The switching circuit switches the connections between the two input ports and the two gamma buffers, such that a first line of pixels of the liquid crystal display receives the gamma voltages from the first gamma buffer within a first frame period and a second frame period, and that a second line of pixels of the liquid crystal display receives the gamma voltages from the second gamma buffer within the first frame period and the second frame period.

Abstract translation: 提供了包括第一输入端口，第二输入端口，第一伽马缓冲器，第二伽马缓冲器和开关电路的液晶显示器的驱动电路。 从第一输入端口输入多个第一伽马电压，并且从第二输入端口输入多个第二伽玛电压。 开关电路切换两个输入端口和两个伽马缓冲器之间的连接，使得液晶显示器的第一行像素在第一帧周期和第二帧周期内从第一伽马缓冲器接收伽马电压，以及 液晶显示器的第二行像素在第一帧周期和第二帧周期内从第二伽马缓冲器接收伽马电压。

公开(公告)号：US20120119834A1

公开(公告)日：2012-05-17

申请号：US13339373

申请日：2011-12-29

Applicant: Chia-Wei Su ,  Ju-Lin Huang ,  Keko-Chun Liang

Inventor： Chia-Wei Su ,  Ju-Lin Huang ,  Keko-Chun Liang

IPC: H03F3/45

CPC classification number: H03F3/211 ,  H03F1/52 ,  H03F1/523 ,  H03F3/265 ,  H03F3/303 ,  H03F3/45 ,  H03F3/45071 ,  H03F3/45475 ,  H03F2200/444 ,  H03F2203/21178 ,  H03F2203/45218

Abstract: An amplifier circuit with overshoot suppress scheme including an input amplifier, an output amplifier, and a diode is provided. A first and a second input ends of the output amplifier are coupled to a differential output pair of the input amplifier. The diode is coupled between an output end and the first input end of the output amplifier. When the voltage difference between the output and the input ends of the output amplifier is greater then the barrier voltage of the diode, the diode is turned on, so that the output end of the output amplifier is coupled to the input end of the output amplifier. In the transient state, it rapidly smoothes the overshoot signal. In the steady state, the diode is cut off to maintain the normal operation of the operational amplifier.

Abstract translation: 提供了具有输入放大器，输出放大器和二极管的具有过冲抑制方案的放大器电路。 输出放大器的第一和第二输入端耦合到输入放大器的差分输出对。 二极管耦合在输出端和输出放大器的第一输入端之间。 当输出放大器的输出端和输入端之间的电压差大于二极管的势垒电压时，二极管导通，使得输出放大器的输出端耦合到输出放大器的输入端 。 在瞬态状态下，它会快速平滑过冲信号。 在稳定状态下，二极管被切断以保持运算放大器的正常工作。

公开(公告)号：US08130218B2

公开(公告)日：2012-03-06

申请号：US12051837

申请日：2008-03-19

Applicant: Ji-Ting Chen ,  Ju-Lin Huang

Inventor： Ji-Ting Chen ,  Ju-Lin Huang

IPC: G06F3/038 ,  G09G5/00 ,  G09G3/36

CPC classification number: G09G3/3688 ,  G09G2310/0248

Abstract: An electronic device of a source driver in an LCD device, for enhancing accuracy of voltage outputted to an equivalent capacitor of a panel of the LCD device, includes a first node, a second node, an output unit, a first charge sharing switch, a second charge sharing switch, a first precharge switch, and a second precharge switch. The electronic device only uses two precharge switches to implement the precharge function and can decrease the current limiting resistor for enhancing the output voltage accuracy and decrease the charge time of the equivalent capacitor.

Abstract translation: 一种用于提高输出到LCD装置的面板的等效电容器的电压的精度的LCD装置中的源极驱动器的电子装置，包括第一节点，第二节点，输出单元，第一电荷共享开关， 第二电荷共享开关，第一预充电开关和第二预充电开关。 电子设备仅使用两个预充电开关来实现预充电功能，并且可以减小限流电阻器，以提高输出电压精度并减小等效电容器的充电时间。

公开(公告)号：US20090153547A1

公开(公告)日：2009-06-18

申请号：US12051837

申请日：2008-03-19

Applicant: Ji-Ting Chen ,  Ju-Lin Huang

Inventor： Ji-Ting Chen ,  Ju-Lin Huang

IPC: G06F3/038

CPC classification number: G09G3/3688 ,  G09G2310/0248

Abstract: An electronic device of a source driver in an LCD device, for enhancing accuracy of voltage outputted to an equivalent capacitor of a panel of the LCD device, includes a first node, a second node, an output unit, a first charge sharing switch, a second charge sharing switch, a first precharge switch, and a second precharge switch. The electronic device only uses two precharge switches to implement the precharge function and can decrease the current limiting resistor for enhancing the output voltage accuracy and decrease the charge time of the equivalent capacitor.

Abstract translation: 一种用于提高输出到LCD装置的面板的等效电容器的电压的精度的LCD装置中的源极驱动器的电子装置，包括第一节点，第二节点，输出单元，第一电荷共享开关， 第二电荷共享开关，第一预充电开关和第二预充电开关。 电子设备仅使用两个预充电开关来实现预充电功能，并且可以减小限流电阻器，以提高输出电压精度并减小等效电容器的充电时间。

公开(公告)号：US08120421B2

公开(公告)日：2012-02-21

申请号：US12604375

申请日：2009-10-22

Applicant: Ju-Lin Huang

Inventor： Ju-Lin Huang

IPC: G01R19/00

CPC classification number: G01R31/316 ,  G01R31/2884 ,  H03F3/45183 ,  H03F2203/45616 ,  H03F2203/45724 ,  H03F2203/45726

Abstract: A circuit structure free from test effect is provided. The circuit structure includes a first test terminal and a second test terminal. A symmetric circuit unit is coupled between the first test terminal and the second test terminal. The symmetric circuit unit includes a plurality of transistors, wherein the transistors are symmetrically disposed to form a first part circuit and a second part circuit. A switch control unit alternatively connects the transistors of the first part circuit and the transistors of the second part circuit between the first test terminal and the second test terminal according to a control signal.

Abstract translation: 提供了没有测试效果的电路结构。 电路结构包括第一测试终端和第二测试终端。 对称电路单元耦合在第一测试终端和第二测试终端之间。 对称电路单元包括多个晶体管，其中晶体管对称地设置以形成第一部分电路和第二部分电路。 开关控制单元根据控制信号将第一部分电路的晶体管和第二部分电路的晶体管交替地连接在第一测试端子和第二测试端子之间。