Patents by Inventor Yung-tse Cheng
Yung-tse Cheng 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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Publication number: 20170147126Abstract: A touch panel including a substrate, first bridge electrodes, first transparent electrodes, an insulation layer, first sensing electrodes, second bridge electrodes, and second sensing electrodes is provided. Two neighboring first transparent electrodes cover two ends of each first bridge electrode and are electrically connected to the first bridge electrode. Each first transparent electrode has an overlapping region and a non-overlapping region. The insulation layer has openings. Two neighboring openings expose the non-overlapping regions of the first transparent electrodes. Two neighboring first sensing electrodes are filled in the openings and are electrically connected to each other through the first transparent electrodes and the first bridge electrodes, so as to form a first sensing electrode series. The second bridge electrodes cross the first bridge electrodes.Type: ApplicationFiled: June 14, 2016Publication date: May 25, 2017Inventors: KUAN-YU CHIU, TENG-FU TUNG, PO-YUAN LIU, YUNG-TSE CHENG
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Patent number: 8976143Abstract: A touch detecting method comprises: enabling a sample signal in a period between driving a previous gate line and a previous two gate line before a corresponding gate line of a sense unit, and sampling a readout signal in a corresponding readout line during a sample period corresponding to the enabled sample signal by a readout unit; using the sampled readout signal during the sample period by the readout unit as a sample reference signal; enabling a sense readout signal in a period between driving the corresponding gate line of the sense unit and a next gate line, and reading out the readout signal during a sense readout period corresponding to the enabled sense readout signal; using the readout signal during the sense readout period as a sense signal; and judging whether the sense unit is touched according to the sample reference signal and the sense signal.Type: GrantFiled: February 23, 2011Date of Patent: March 10, 2015Assignee: Au Optronics Corp.Inventors: Ping-Hwan Lee, Yu-Min Hsu, Yung-Tse Cheng
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Patent number: 8963850Abstract: A method for determining scanning times of touch driving pulse in a touch panel includes steps of: judging a current gate line scan period is in which one of a data updating time period and a blanking time period; if the current gate line scan period is in the data updating time period, setting a scanning times of touch driving pulse in the current gate line scan period to be a first value; and if the current gate line scan period is in the blanking time period, setting the scanning times of touch driving pulse in the current gate line scan period to be a second value. The first value is different from the second value, and a time for touch driving pulse scanning is non-overlapped with another time for providing display data to data lines of the touch panel in each scan line scan period.Type: GrantFiled: April 29, 2011Date of Patent: February 24, 2015Assignee: AU Optronics Corp.Inventors: Chun-Wei Yang, Chun-Lung Hung, Yu-Min Hsu, Yung-Tse Cheng
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Patent number: 8890822Abstract: A method for controlling operations of a touch panel includes synchronizing timing of a plurality of gate lines and timing of a plurality of touch sensors; determining whether polarities of common voltages of a display layer are consistent when driving signals are outputted to a first gate line and a second gate line, the second gate line following the first gate line; and if the polarities are consistent, outputting at least one driving pulse to a touch sensor of the plurality of touch sensors after image data corresponding to the second gate line is transmitted to the display layer.Type: GrantFiled: December 14, 2011Date of Patent: November 18, 2014Assignee: AU Optronics Corp.Inventors: Chun-Wei Yang, Jing-Jhih Huang, Yu-Min Hsu, Yung-Tse Cheng
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Patent number: 8872774Abstract: While correcting and recording initial touch points on a touch panel, a plurality of sensors on the touch panel are classified into a plurality of first sensing groups assigned with serial numbers, and a plurality of sensors of each the first sensing group are equally divided into a plurality of second sensing groups assigned with serial numbers. After detecting initial touch points on the touch panel, a plurality of headers are generated for the plurality of first sensing groups, and a data structure is generated for each of the sensors having detected initial touch points according to whether first sensing groups corresponding to the headers have the sensors having the detected initial touch points or not. At last, the initial touch points are filtered off from a plurality of detected touch points on the touch panel, according to initial touch point information recorded in loaded data structures.Type: GrantFiled: May 4, 2011Date of Patent: October 28, 2014Assignee: AU Optronics Corp.Inventors: Ping-Hwan Lee, Yu-Min Hsu, Yung-Tse Cheng
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Publication number: 20140092056Abstract: The touch apparatus includes a touch panel, a signal generation unit for generating a driving signal, an inductor, and a detection unit. The touch panel has touch areas. The inductor is coupled between the touch panel and the signal generation unit and transmits the driving signal to the touch areas. The detection unit is coupled to the touch panel and the signal generation unit, receives touch signals from the touch areas, and calculates capacitance variances of the touch areas according to the touch signals and an output timing of the driving signal, so as to detect a touch point of the touch panel. A frequency of the driving signal is equal to a resonant frequency of a reference capacitance of the touch panel and an inductance of the inductor.Type: ApplicationFiled: December 20, 2012Publication date: April 3, 2014Applicant: AU OPTRONICS CORPORATIONInventors: Sin-Guo Jhou, Yu-Min Hsu, Yung-Tse Cheng
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Patent number: 8643582Abstract: A driving apparatus for a liquid crystal display (LCD) is provided. The driving apparatus includes a plurality of data driving ICs and a control board. The data driving ICs are used for receiving and transmitting a clock signal, a plurality of data signals and a first reference voltage from the 1st data driving IC to the last data driving IC in series. The control board is used for providing the clock signal, the data signals and the first reference voltage, and changing the first reference voltage received by each data driving IC according to a variation of the clock signal and the data signals transmitted between the data driving ICs, so that the operation frequency of the data driving ICs is unrestricted.Type: GrantFiled: January 8, 2013Date of Patent: February 4, 2014Assignee: Au Optronics CorporationInventors: Ming-Hung Tu, Sheng-Kai Hsu, Yung-Tse Cheng, Chih-Sung Wang
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Patent number: 8471804Abstract: A control signal generation method of integrated gate driver circuit includes the steps of: providing one gate control signal to an integrated gate driver circuit; and generating a plurality of internal control signals by the integrated gate driver circuit according to on the gate control signal to control internal operations of the integrated gate driver circuit. Furthermore, an integrated gate driver circuit is adapted to receive one external gate control signal. The integrated gate driver circuit includes an internal control signal generation circuit for generating a plurality of internal control signals according to the external gate control signal to control internal operations of the integrated gate driver circuit. In addition, a liquid crystal display device using the above-mentioned integrated gate driver circuit also is provided.Type: GrantFiled: February 24, 2009Date of Patent: June 25, 2013Assignee: AU Optronics Corp.Inventors: Meng-Ju Wu, Sheng-Kai Hsu, Yung-Tse Cheng, Ming-Hung Tu
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Patent number: 8436831Abstract: An exemplary capacitive touch detection system includes a capacitive touch panel and a detection control circuit. The capacitive touch panel includes a plurality of input terminals and output terminals. The detection control circuit includes a scanning signal transmitting module electrically coupled to the input terminals and a detection signal receiving and waveform shaping module including a receiver and an impedance-matching network. The detection signal receiving and waveform shaping module is electrically coupled to the output terminals for receiving and processing a plurality of detection signals outputted from the respective output terminals and thereby producing a plurality of processed detection signals. The receiver is used for receiving the detection signals.Type: GrantFiled: June 30, 2010Date of Patent: May 7, 2013Assignee: Au Optronics Corp.Inventors: Fu-Cheng Wei, Yu-Min Hsu, Yung-Tse Cheng
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Patent number: 8432374Abstract: The present invention relates to a position detector and a touch sensing device of using same with SNR enhancement. In one embodiment, the position detector has (P+1) inputs, each input for receiving an input signal associated with a position, P being a positive integer, and P operational amplifiers, each operational amplifier having a non-inverting input and an inverting input, where the inverting input of the j-th operational amplifier is electrically connected to the non-inverting input of the (j+1)-th operational amplifier, and the non-inverting input and the inverting input of the j-th operational amplifier are electrically connected to the j-th input port and the (j+1)-th input port, respectively, j=1, 2, 3, . . . , (P?1).Type: GrantFiled: February 26, 2010Date of Patent: April 30, 2013Assignee: AU Optronics CorporationInventors: Chun-Wei Yang, Chia-Feng Yang, Yu-Min Hsu, Yung-Tse Cheng
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Patent number: 8395596Abstract: A touch panel device having high touch sensitivity includes sensing capacitors, switches, storage capacitors, a differential amplifier and a signal processing unit. During a sense period, the switches are periodically turned on alternately for periodically transferring the charges of the sensing capacitors to the storage capacitors. The differential amplifier is put in use for amplifying the voltage difference of two corresponding storage capacitors for generating a touch readout signal. The signal processing unit performs an OR operation on two touch readout signals generated during different sense periods based on different sensing capacitor combinations regarding same panel touch position for providing a touch position signal.Type: GrantFiled: December 17, 2009Date of Patent: March 12, 2013Assignee: AU Optronics Corp.Inventors: Jun-Wei Yang, Chia-Feng Yang, Yu-Min Hsu, Yung-Tse Cheng
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Patent number: 8378949Abstract: A driving apparatus for a liquid crystal display (LCD) is provided. The driving apparatus includes a plurality of data driving ICs and a control board. The data driving ICs are used for receiving and transmitting a clock signal, a plurality of data signals and a first reference voltage from the 1st data driving IC to the last data driving IC in series. The control board is used for providing the clock signal, the data signals and the first reference voltage, and changing the first reference voltage received by each data driving IC according to a variation of the clock signal and the data signals transmitted between the data driving ICs, so that the operation frequency of the data driving ICs is unrestricted.Type: GrantFiled: October 9, 2008Date of Patent: February 19, 2013Assignee: Au Optronics CorporationInventors: Ming-Hung Tu, Sheng-Kai Hsu, Yung-Tse Cheng, Chih-Sung Wang
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Publication number: 20120319962Abstract: A method for controlling operations of a touch panel includes synchronizing timing of a plurality of gate lines and timing of a plurality of touch sensors; determining whether polarities of common voltages of a display layer are consistent when driving signals are outputted to a first gate line and a second gate line, the second gate line following the first gate line; and if the polarities are consistent, outputting at least one driving pulse to a touch sensor of the plurality of touch sensors after image data corresponding to the second gate line is transmitted to the display layer.Type: ApplicationFiled: December 14, 2011Publication date: December 20, 2012Inventors: Chun-Wei Yang, Jing-Jhih Huang, Yu-Min Hsu, Yung-Tse Cheng
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Patent number: 8284172Abstract: An exemplary detecting method for a photo-sensor touch panel and a touch-sensitive electronic apparatus using the same are provided. In aforementioned method, an image frame is obtained by scanning the photo-sensor touch panel. Then, a distribution area of data points in the image frame each having a brightness between a predetermined brightness and a first threshold brightness is defined as a first sensing area, and a distribution area of data points in the image frame each having a brightness between the predetermined brightness and a second threshold brightness is defined as a second sensing area. Afterward, it is determined that whether a real touch probably/really occurred according to a relative distance between one of first data points and corresponding one of second data points. The first data points located in the first sensing area, and the second data points located in the second sensing area.Type: GrantFiled: August 26, 2009Date of Patent: October 9, 2012Assignee: AU Optronics Corp.Inventors: Chun-Wei Yang, Yu-Min Hsu, Yung-Tse Cheng
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Publication number: 20120154322Abstract: A method for determining scanning times of touch driving pulse in a touch panel includes steps of: judging a current gate line scan period is in which one of a data updating time period and a blanking time period; if the current gate line scan period is in the data updating time period, setting a scanning times of touch driving pulse in the current gate line scan period to be a first value; and if the current gate line scan period is in the blanking time period, setting the scanning times of touch driving pulse in the current gate line scan period to be a second value. The first value is different from the second value, and a time for touch driving pulse scanning is non-overlapped with another time for providing display data to data lines of the touch panel in each scan line scan period.Type: ApplicationFiled: April 29, 2011Publication date: June 21, 2012Applicant: AU OPTRONICS CORP.Inventors: Chun-Wei YANG, Chun-Lung HUNG, Yu-Min HSU, Yung-Tse CHENG
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Publication number: 20110316795Abstract: While correcting and recording initial touch points on a touch panel, a plurality of sensors on the touch panel are classified into a plurality of first sensing groups assigned with serial numbers, and a plurality of sensors of each the first sensing group are equally divided into a plurality of second sensing groups assigned with serial numbers. After detecting initial touch points on the touch panel, a plurality of headers are generated for the plurality of first sensing groups, and a data structure is generated for each of the sensors having detected initial touch points according to whether first sensing groups corresponding to the headers have the sensors having the detected initial touch points or not. At last, the initial touch points are filtered off from a plurality of detected touch points on the touch panel, according to initial touch point information recorded in loaded data structures.Type: ApplicationFiled: May 4, 2011Publication date: December 29, 2011Inventors: Ping-Hwan Lee, Yu-Min Hsu, Yung-Tse Cheng
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Publication number: 20110298759Abstract: During test of a display, a synchronous reference signal is determined, and an appearing moment of a minimal-noise signal is determined based on a start moment of the synchronous reference signal. Therefore, during other tests or usage by a user on the display, noise from data lines due to data coupling may be avoided, and detection and determination of touch commands on a touch panel of the display may be isolated from being disturbed by the noise.Type: ApplicationFiled: September 21, 2010Publication date: December 8, 2011Inventors: Chun-Wei Yang, Chun-Lung Hung, Yu-Min Hsu, Yung-Tse Cheng
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Publication number: 20110285663Abstract: A touch detecting method comprises: enabling a sample signal in a period between driving a previous gate line and a previous two gate line before a corresponding gate line of a sense unit, and sampling a readout signal in a corresponding readout line during a sample period corresponding to the enabled sample signal by a readout unit; using the sampled readout signal during the sample period by the readout unit as a sample reference signal; enabling a sense readout signal in a period between driving the corresponding gate line of the sense unit and a next gate line, and reading out the readout signal during a sense readout period corresponding to the enabled sense readout signal; using the readout signal during the sense readout period as a sense signal; and judging whether the sense unit is touched according to the sample reference signal and the sense signal.Type: ApplicationFiled: February 23, 2011Publication date: November 24, 2011Applicant: AU OPTRONICS CORP.Inventors: Ping-Hwan LEE, Yu-Min Hsu, Yung-Tse Cheng
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Patent number: 8049703Abstract: A flat display structure including a substrate, a pixel matrix, a driving circuit and several voltage adapting devices and driving method thereof are provided. Each of voltage adapting devices includes an input terminal, a first control terminal and an output terminal. The input terminal is electrically connected to the i-th gate line Gi corresponding to the i-th pixel row Ri. The first control terminal is adapted to receive a first control signal. The output terminal is adapted to receive a working voltage.Type: GrantFiled: July 10, 2006Date of Patent: November 1, 2011Assignee: AU Optronics Corp.Inventors: Lee-Hsun Chang, Yu-Wen Lin, Chung-Lung Li, Yung-Tse Cheng
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Patent number: 8031160Abstract: A flat display apparatus comprising a shift register array is provided. The shift register array comprises a plurality of shift registers. At least one of these shift registers comprises a shift register unit, a first TFT, and a second TFT. The shift register unit is configured to receive an activation signal and comprises a first output terminal and a second output terminal. The gate of the first TFT is coupled to the first output terminal. The second electrode of the first TFT receives a clock signal. The gate of the second TFT is coupled to the first electrode of the first TFT. The second electrode of the second TFT is coupled to the second electrode of the first TFT. The first electrode of the second TFT is coupled to the second output terminal.Type: GrantFiled: July 13, 2007Date of Patent: October 4, 2011Assignee: AU Optronics Corp.Inventors: Jing Ru Chen, Lee Hsun Chang, Shyh-Feng Chen, Chun-Jong Chang, Yung-Tse Cheng