Patents by Inventor Jung-Chun Tseng
Jung-Chun Tseng has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8253661Abstract: A method of compensating for luminance of an organic light emitting diode is provided. In an embodiment, an operational current of a dummy organic light emitting diode of a color is utilized to simulate the condition that a real pixel current attenuates with time, and a feedback current is outputted accordingly. A compensating voltage is generated according to the feedback current, and is used to regulates the data current inputted to the real pixel so as to compensate for the luminance of the real pixel of the color.Type: GrantFiled: February 5, 2009Date of Patent: August 28, 2012Assignee: Au Optronics Corp.Inventors: Wein-Town Sun, Jung-Chun Tseng
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Patent number: 7696972Abstract: A single clock driven shift register comprising multiple stages is provided. The (M)th stage comprises a latch unit, a logic unit, and a non-overlap buffer. The latch unit latches an input signal from the (M?1)th stage according to a clock signal. The logic unit connecting to an output terminal of the latch unit deals with an output signal of the latch unit and the clock signal with an NAND logic calculation. The non-overlap buffer connecting to the output terminal of the logic unit comprises at least three inverters connected in a serial, and an output signal of the first inverter coupled to the output terminal of the logic unit is input to an latch unit of the (M+1)th stage. Meanwhile, an output signal of the non-overlap buffer of the (M?1)th stage is input to the non-overlap buffer or the logic unit to delay the output signal of the non-overlap buffer.Type: GrantFiled: June 6, 2005Date of Patent: April 13, 2010Assignee: AU Optronics Corp.Inventors: Jung-Chun Tseng, Sheng-Chao Liu, Jian-Shen Yu
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Patent number: 7554513Abstract: An organic light emitting diode (OLED) display includes a first and a second digital/analog current converters, a feedback unit and a compensating unit. The feedback unit includes the first and second feedback circuits for generating the first and second feedback currents, respectively. The compensating unit includes the first and second compensating circuits for outputting the first and second compensating voltages as the first and second reference voltages for the first and second digital/analog current converters in accordance with the first and second feedback currents, respectively. The luminance change of the first and second pixels is positively proportional to the first and second feedback current change. Therefore, the first and second compensating voltages are changed accordingly, and the first and second reference voltages are regulated so as to compensate for the luminance of the first and second pixels.Type: GrantFiled: June 17, 2005Date of Patent: June 30, 2009Assignee: Au Optronics Corp.Inventors: Wein-Town Sun, Jung-Chun Tseng
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Publication number: 20090141051Abstract: A method of compensating for luminance of an organic light emitting diode is provided. In an embodiment, an operational current of a dummy organic light emitting diode of a color is utilized to simulate the condition that a real pixel current attenuates with time, and a feedback current is outputted accordingly. A compensating voltage is generated according to the feedback current, and is used to regulates the data current inputted to the real pixel so as to compensate for the luminance of the real pixel of the color.Type: ApplicationFiled: February 5, 2009Publication date: June 4, 2009Applicant: AU OPTRONICS CORP.Inventors: Wein-Town Sun, Jung-Chun Tseng
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Patent number: 7525524Abstract: A data driving circuit and organic light emitting diode display, comprising a D/A converter, a switch unit, a first analog sampling storage circuit and a second analog sampling storage circuit. The first analog sampling storage circuit is controlled by a first signal for storing corresponding first analog transformed data in the first cycle, and controlled by a second signal for outputting first analog data corresponding to the first analog transformed data in the second cycle. The second analog sampling storage circuit is controlled by the second signal for storing the second analog transformed data in the second cycle, and controlled by the first signal for outputting second analog data corresponding to the second analog transformed data in a third cycle.Type: GrantFiled: May 10, 2005Date of Patent: April 28, 2009Assignee: Au Optronics Corp.Inventors: Jung-Chun Tseng, Shin-Hung Yeh, Wein-Town Sun
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Publication number: 20070255188Abstract: A massager includes a power unit to drive two compression plates linked to two axial seats to relatively swing for kneading on the neck of the user; a kneading unit being each provided externally to the plate; one or a plurality of dancer driven by a transmission shaft being disposed to each kneading unit to provide continuous movement simulating finger pressing to massage the user's neck and shoulders at the same time.Type: ApplicationFiled: May 1, 2006Publication date: November 1, 2007Inventor: Jung-Chun Tseng
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Patent number: 7245278Abstract: A display pixel circuit having a data line loading circuit with a first capacitor, a first reset circuit coupled with the data line loading circuit, and a diode coupled to the data line loading circuit. The display pixel circuit also includes a second capacitor associated with the diode, and a second reset circuit coupled with the second capacitor. The first reset circuit is configured to reset the first capacitor. The second reset circuit is configured to reset the second capacitor, and the diode is driven by a constant current after resetting the first capacitor and the second capacitor.Type: GrantFiled: March 15, 2004Date of Patent: July 17, 2007Assignee: Au Optronics CorporationInventors: Jen-Yi Hu, Jung-Chun Tseng
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Publication number: 20060287620Abstract: A power massager to respectively work on the neck and shoulders of its user includes a drive unit to drive two press plates to oscillate for massaging the neck; two finger press units coupled to a transmission shaft on the outer sides of both press plate; each finger press unit being separately provided a hammer; and the hammer as driven by the transmission shaft continuously operates to massage the shoulders.Type: ApplicationFiled: June 17, 2005Publication date: December 21, 2006Inventor: Jung-Chun Tseng
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Patent number: 7057542Abstract: A data driving circuit and method for an organic light emitting diode display. Data lines transmit first digital data in a first cycle, and subsequent digital data in a second cycle. A D/A converter electrically connected to the data lines converts the first digital data to first analog data, and converts the subsequent digital data to second analog data. Each analog sampling storage circuit electrically coupled to the D/A converter, in the first cycle, stores the first analog data, in the second cycle, outputs the first analog data and stores the second analog data, and in a third cycle, outputs the second analog data.Type: GrantFiled: May 10, 2005Date of Patent: June 6, 2006Assignee: AU Optronics Corp.Inventors: Shin-Hung Yeh, Jung-Chun Tseng
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Patent number: 7034734Abstract: A digital to analog converter is provided. The digital to analog converter comprises a digital data input, a decoder, a re-queuing circuit and a plurality of current cells. The digital data input receives a digital input data. The decoder decodes the digital input data and generates a decoded data. The re-queuing circuit changes a bit sequence of decoded data and outputs a re-queued data. Each current cell comprises a current source and an internal logic gate. The internal logic gate determines whether the current source outputs the current according to the re-queued data.Type: GrantFiled: June 7, 2005Date of Patent: April 25, 2006Assignee: AU Optronics Corp.Inventor: Jung-Chun Tseng
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Publication number: 20060017685Abstract: A single clock driven shift register comprising multiple stages is provided. The (M)th stage comprises a latch unit, a logic unit, and a non-overlap buffer. The latch unit latches an input signal from the (M?1)th stage according to a clock signal. The logic unit connecting to an output terminal of the latch unit deals with an output signal of the latch unit and the clock signal with an NAND logic calculation. The non-overlap buffer connecting to the output terminal of the logic unit comprises at least three inverters connected in a serial, and an output signal of the first inverter coupled to the output terminal of the logic unit is input to an latch unit of the (M+1)th stage. Meanwhile, an output signal of the non-overlap buffer of the (M?1)th stage is input to the non-overlap buffer or the logic unit to delay the output signal of the non-overlap buffer.Type: ApplicationFiled: June 6, 2005Publication date: January 26, 2006Inventors: Jung-Chun Tseng, Sheng-Chao Liu, Jian-Shen Yu, Yih-Sheng Yu
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Publication number: 20050280617Abstract: An organic light emitting diode (OLED) display includes a first and a second digital/analog current converters, a feedback unit and a compensating unit. The feedback unit includes the first and second feedback circuits for generating the first and second feedback currents, respectively. The compensating unit includes the first and second compensating circuits for outputting the first and second compensating voltages as the first and second reference voltages for the first and second digital/analog current converters in accordance with the first and second feedback currents, respectively. The luminance change of the first and second pixels is positively proportional to the first and second feedback current change. Therefore, the first and second compensating voltages are changed accordingly, and the first and second reference voltages are regulated so as to compensate for the luminance of the first and second pixels.Type: ApplicationFiled: June 17, 2005Publication date: December 22, 2005Inventors: Wein-Town Sun, Jung-Chun Tseng
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Patent number: 6977470Abstract: A pixel device of an electroluminescence device that comprises a scan line and a data line corresponding to the pixel device, a voltage signal transmitted over the scan line having a first state and a second state, a current mirror circuit further comprising a first transistor including a gate, and a second transistor including a gate coupled to the gate of the first transistor, a first current flowing through the first transistor to the data line being provided in response to the first state of the voltage signal, a second current proportional to the first current flowing through the second transistor in response to the first state of the voltage signal, a light emitting diode connected to the second transistor, and a capacitor being charged to a voltage level in response to the first state of the voltage signal by the first current, and maintaining the second current during the second state of the voltage signal.Type: GrantFiled: April 28, 2004Date of Patent: December 20, 2005Assignee: Au Optronics Corp.Inventor: Jung-Chun Tseng
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Publication number: 20050270209Abstract: A digital to analog converter is provided. The digital to analog converter comprises a digital data input, a decoder, a re-queuing circuit and a plurality of current cells. The digital data input receives a digital input data. The decoder decodes the digital input data and generates a decoded data. The re-queuing circuit changes a bit sequence of decoded data and outputs a re-queued data. Each current cell comprises a current source and an internal logic gate. The internal logic gate determines whether the current source outputs the current according to the re-queued data.Type: ApplicationFiled: June 7, 2005Publication date: December 8, 2005Inventor: Jung-Chun Tseng
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Publication number: 20050270207Abstract: A data driving circuit and method for an organic light emitting diode display. Data lines transmit first digital data in a first cycle, and subsequent digital data in a second cycle. A D/A converter electrically connected to the data lines converts the first digital data to first analog data, and converts the subsequent digital data to second analog data. Each analog sampling storage circuit electrically coupled to the D/A converter, in the first cycle, stores the first analog data, in the second cycle, outputs the first analog data and stores the second analog data, and in a third cycle, outputs the second analog data.Type: ApplicationFiled: May 10, 2005Publication date: December 8, 2005Inventors: Shin-Hung Yeh, Jung-Chun Tseng
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Publication number: 20050270206Abstract: A data driving circuit and organic light emitting diode display, comprising a D/A converter, a switch unit, a first analog sampling storage circuit and a second analog sampling storage circuit. The first analog sampling storage circuit is controlled by a first signal for storing corresponding first analog transformed data in the first cycle, and controlled by a second signal for outputting first analog data corresponding to the first analog transformed data in the second cycle. The second analog sampling storage circuit is controlled by the second signal for storing the second analog transformed data in the second cycle, and controlled by the first signal for outputting second analog data corresponding to the second analog transformed data in a third cycle.Type: ApplicationFiled: May 10, 2005Publication date: December 8, 2005Inventors: Jung-Chun Tseng, Shin-Hung Yeh, Wein-Town Sun
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Publication number: 20050242744Abstract: A pixel device of an electroluminescence device that comprises a scan line and a data line corresponding to the pixel device, a voltage signal transmitted over the scan line having a first state and a second state, a current mirror circuit further comprising a first transistor including a gate, and a second transistor including a gate coupled to the gate of the first transistor, a first current flowing through the first transistor to the data line being provided in response to the first state of the voltage signal, a second current proportional to the first current flowing through the second transistor in response to the first state of the voltage signal, a light emitting diode connected to the second transistor, and a capacitor being charged to a voltage level in response to the first state of the voltage signal by the first current, and maintaining the second current during the second state of the voltage signal.Type: ApplicationFiled: April 28, 2004Publication date: November 3, 2005Inventor: Jung-Chun Tseng
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Publication number: 20050057456Abstract: A display pixel circuit having a data line loading circuit with a first capacitor, a first reset circuit coupled with the data line loading circuit, and a diode coupled to the data line loading circuit. The display pixel circuit also includes a second capacitor associated with the diode, and a second reset circuit coupled with the second capacitor. The first reset circuit is configured to reset the first capacitor. The second reset circuit is configured to reset the second capacitor, and the diode is driven by a constant current after resetting the first capacitor and the second capacitor.Type: ApplicationFiled: March 15, 2004Publication date: March 17, 2005Inventors: Jen-Yi Hu, Jung-Chun Tseng
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Publication number: 20040186399Abstract: A leg massage installation comprised of a roller to massage nerve centers on the foot; two pressboards fixed to the peripheral of a cam disk; the center of the camdisk being inserted onto a spherical part of a linkage shaft; a drive disk each fixed to both sides of the linkage shaft; one end of the linkage shaft being incorporated to the roller by means of a shift mechanism; the turning roller to drive the linkage shaft for reciprocal turning through the shift mechanism, and the drive disk twists for both pressboards to reciprocally swing towards the roller massage nerve centers on the feet and leg muscles.Type: ApplicationFiled: March 17, 2003Publication date: September 23, 2004Inventor: Jung-Chun Tseng
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Publication number: 20030135138Abstract: A transmission for a swing exerciser mainly has two ends of a link rod respectively and pivotally disposed onto a crank shaft and a rocking rod as well as a driving member composed by a motor and a variable speed gear for driving the crank shaft to rotate; when the crank shaft rotates, the crank shaft and the rocking rod drive the link rod to repetitively wind along an 8-shaped path thereby to allow the straddle seat thereon to make an user's leg portions swing left and right as well as lift up and down for exercising effect.Type: ApplicationFiled: January 11, 2002Publication date: July 17, 2003Inventor: Jung-Chun Tseng