Patents by Inventor Kuo-Hsing Cheng
Kuo-Hsing 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: 20130100103Abstract: A driving method of a bi-stable display panel includes: providing a handwriting period; and configuring, at an end of the handwriting period, the bi-stable display panel to be driven by dc non-balance to display an image to be displayed.Type: ApplicationFiled: August 17, 2012Publication date: April 25, 2013Applicant: AU OPTRONICS CORP.Inventors: Chun-Chi LAI, Chia-Hsien CHU, Kuo-Hsing CHENG, Chia-Wei HAO
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Patent number: 8369476Abstract: A clock generator is illustrated. The clock generator mentioned above includes a multimodulus frequency divider and a delta-sigma modulator. The multimodulus frequency divider is archived by switching the phase thereof. The multimodulus frequency divider increases the operating frequency of the clock generator effectively, and has a characteristic with half period resolution for reducing the jitter of an output clock signal when its spectrum is spread. Besides, the delta-sigma modulator increases the accuracy of the triangle modulation and reduces error of quantization by adding a few components therein. Thus, the clock generator could be expanded to a programmable clock generator.Type: GrantFiled: March 7, 2011Date of Patent: February 5, 2013Assignee: Industrial Technology Research InstituteInventors: Wei-Sheng Tseng, Hong-Yi Huang, Kuo-Hsing Cheng, Yuan-Hua Chu
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Patent number: 8334848Abstract: A resistance type touch display panel includes a first substrate and a second substrate disposed above the first substrate. The first substrate includes many scan lines and data lines defining many pixel regions on the first substrate, many pixel units and touch units. Each pixel unit is located in one of the pixel regions and electrically connected with one of the scan lines and data lines respectively. Each touch unit is electrically connected with one of the scan lines and data lines and distributed in at least two pixel regions. The second substrate includes many spacers, many touch protrusions and a common electrode covering the spacers and the touch protrusions. Each touch protrusion is located above one of the touch units and a gap is formed between the common electrode disposed on each touch protrusion and the touch unit.Type: GrantFiled: May 30, 2008Date of Patent: December 18, 2012Assignee: Au Optronics CorporationInventors: Mei-Sheng Ma, Hsin-Hung Lee, Yuan-Chun Wu, Kuo-Hsing Cheng
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Publication number: 20120293480Abstract: An electrophoretic display and a related driving method are provided, the electrophoretic display and related driving method for causing voltage level switching of a common signal of the electrophoretic display, which induces colored electrophoretic particles to be arranged in a more compact way during a power-off period, thereby improving the quality of a standby image of the electrophoretic display.Type: ApplicationFiled: April 9, 2012Publication date: November 22, 2012Inventors: Feng-Sheng Lin, Kuo-Hsing Cheng, Chun-Chi Lai, Ching-Yen Tsai
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Publication number: 20120280952Abstract: An electrophoretic display includes an electrophoretic panel, a timing control circuit, a source driver, a gate driver, and a gate line enable circuit. The timing control circuit generates a timing control signal corresponding to a refresh area of a frame according to the refresh area. The gate driver generates output enable signals corresponding to the refresh area according to the timing control signal, and the gate line enable circuit transmits scan signals of first gate lines corresponding to the refresh area to second gate lines corresponding to the refresh area according to the enabled output enable signals. The source driver drives data lines corresponding to the refresh area according to the timing control signal to charge/discharge pixels corresponding to the refresh area.Type: ApplicationFiled: March 25, 2012Publication date: November 8, 2012Inventors: Kuo-Cheng Hsu, Che-Chia Hsu, Pei-Yu Chen, Kuo-Hsing Cheng
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Publication number: 20120249508Abstract: A bistable display and a method of driving a panel thereof are provided. The bistable display includes a bistable display panel and a driving device. The bistable display panel at least has a first pixel and a second pixel, and these two pixels share a data line. The driving device is coupled to the bistable display panel, and used for providing different source driving waveforms to the first pixel and the second pixel respectively.Type: ApplicationFiled: October 7, 2011Publication date: October 4, 2012Applicant: AU OPTRONICS CORPORATIONInventors: Kuo-Cheng Hsu, Kuan-Yi Lien, Pei-Yu Chen, Mei-Sheng Ma, Kuo-Hsing Cheng
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Patent number: 8269536Abstract: An onion waveform generator and a spread spectrum clock generator (SSCG) using the same are provided. The onion waveform generator includes a value generation unit and an accumulating unit. The value generation unit outputs a counting value. The accumulating unit accumulates the counting value to output a waveform value. The accumulating unit switches from an increasing mode to a decreasing mode if the waveform value is a third boundary value, and the accumulating unit switches from the decreasing mode to the increasing mode if the waveform value is a fourth boundary value.Type: GrantFiled: August 31, 2010Date of Patent: September 18, 2012Assignee: Industrial Technology Research InstituteInventors: Hong-Yi Huang, Chih-Yuan Hsu, Wei-Sheng Tseng, Kuo-Hsing Cheng, Yuan-Hua Chu
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Patent number: 8269118Abstract: A touch panel includes a substrate, a touch-sensing circuit, a plurality of sensing signal transmission wires, a capacitance compensation conductor, and a sensing signal readout circuit. The touch-sensing circuit is disposed on the substrate. The sensing signal transmission wires are disposed on the substrate and electrically connected to the touch-sensing circuit. The capacitance compensation conductor is disposed over the sensing signal transmission wires. Capacitance of each sensing signal transmission wire is C1, and coupling capacitance between each sensing signal transmission wire and the capacitance compensation conductor is C2. The sensing signal readout circuit is electrically connected to the sensing signal transmission wires. In each sensing signal transmission wire, variation of summation of C1 and C2 is less than a readout resolution of the sensing signal readout circuit.Type: GrantFiled: November 24, 2009Date of Patent: September 18, 2012Assignee: Au Optronics CorporationInventors: Jing-Tin Kuo, Pei-Yu Chen, Yu-Chuan Lin, Wei-Jen Chang, Kuo-Hsing Cheng
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Patent number: 8237877Abstract: A touch panel includes two substrates, a sealant positioned between the substrates, a liquid crystal layer disposed between the substrates and enclosed by the sealant, and a first and a second sensing zones disposed on the substrate, wherein the first sensing zone is enclosed by the second sensing zone, and the second sensing zone is enclosed by the sealant. The first and second sensing zones have at least a first sensor and at least a second sensor respectively. The first sensor has a first sensor gap, and the second sensor has a second sensor gap smaller than the first sensor gap.Type: GrantFiled: November 10, 2008Date of Patent: August 7, 2012Assignee: AU Optronics Corp.Inventors: Hsin-Hung Lee, Mei-Sheng Ma, Yuan-Chun Wu, Kuo-Hsing Cheng, Jia-Lang Hsu, Pei-Yu Chen, Yao-Jen Hsieh
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Publication number: 20120169677Abstract: A liquid crystal display (LCD) and an LCD panel thereof are provided. The structure of the pixel array of the LCD panel is the structure of the one third source driving (OTSD), and by which skillfully layout the coupled relationship among each pixel, each signal line and each scan line, such that the LCD panel can be driven by a column inversion to achieve the purpose of single-dot inversion displaying, and thus not only reducing the power consumption of the whole LCD, but also promoting the display quality.Type: ApplicationFiled: April 29, 2011Publication date: July 5, 2012Applicant: AU OPTRONICS CORPORATIONInventors: Chun-Chi Lai, Ching-Wei Chen, Tsan-Chun Wang, Kuo-Hsing Cheng, Yao-Jen Hsieh
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Publication number: 20120169956Abstract: An LCD panel transmits the display data to sub-pixels in a zigzag pattern through a data line. The variation of the feed-through voltages of the sub-pixels may be modified by adjusting the ratios of the channel widths and the channel lengths of the TFTs in the sub-pixels to some predetermined ratios, or by adjusting the compensation capacitance to the coupling capacitance of the TFTs of the sub-pixels.Type: ApplicationFiled: May 29, 2011Publication date: July 5, 2012Inventors: Chun-Chi Lai, Ching-Wei Chen, Tsan-Chun Wang, Kuo-Hsing Cheng, Yu-Cheng Chen
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Patent number: 8199120Abstract: A repairable touch control device includes a substrate, a sensor circuit, and at least a repairing wiring. The substrate includes a sensor region, and a peripheral region. The sensor circuit, which includes sensor wirings, is disposed in the sensor region. The repairing wiring is disposed in the peripheral region for repairing the sensor wirings.Type: GrantFiled: December 22, 2008Date of Patent: June 12, 2012Assignee: AU Optronics Corp.Inventors: Yuan-Chun Wu, Hsin-Hung Lee, Mei-Sheng Ma, Kuo-Hsing Cheng, Yao-Jen Hsieh
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Patent number: 8184105Abstract: A touch panel including a substrate, a plurality of first sensing series, and a plurality of second sensing series is provided. The first sensing series and the second sensing series are disposed on the substrate. The first sensing series extend along a first direction and are electrically insulated from each other. Each of the first sensing series includes a plurality of first sensing pads and a plurality of first bridge portions connected between the first sensing pads. The second sensing series extend along a second direction and are electrically insulated from each other. Each of the second sensing series includes a plurality of second sensing pads and a plurality of second bridge portions connected between the second sensing pads. Each of the first bridge portions and one of the second bridge portions are intersected, and at least one of the second bridge portions has at least one electrostatic discharge tip.Type: GrantFiled: December 2, 2009Date of Patent: May 22, 2012Assignee: Au Optronics CorporationInventors: Yu-Chuan Lin, Sheng-Fa Liu, Jing-Tin Kuo, Hsin-Hung Lee, Wei-Jen Chang, Pei-Yu Chen, Yu-Mei Chiu, Mei-Sheng Ma, Kuo-Hsing Cheng
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Patent number: 8139017Abstract: A liquid crystal display device, drive circuit, and repair method thereof are provided. The drive circuit includes a plurality of signal lines and a plurality of drivers connected with the signal lines. The drivers have an ordering sequence. Each of the drivers includes a first amplifier and a second amplifier. Each of the first amplifier and the second amplifier includes an input terminal and an output terminal. The output terminal of the first amplifier of each of the driver is coupled to the input terminal of the first amplifier of the next stage driver according to the ordering sequence. The output terminal of the second amplifier of each driver is coupled to the input terminal of the second amplifier of the next stage driver according to the ordering sequence.Type: GrantFiled: February 18, 2008Date of Patent: March 20, 2012Assignee: AU Optronics Corp.Inventors: Chao Liang Lu, Chi Mao Hung, Wei Min Sun, Yu Chuan Lin, Kuo Hsing Cheng
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Patent number: 8115746Abstract: A display panel with multi-touch function includes a display area and a non-display area. The display area includes a data line, a gate line, a first sensing line, a second sensing line, and a sensing unit. The sensing unit electrically connects the first and second sensing lines according to a touch signal or electrically isolates the first sensing line from the second sensing line. The non-display area includes a gate driver, a first switch and a second switch. The first switch provides a path for charging the second sensing line according to a scan signal, and the second switch provides a path for discharging the second sensing line according to a reset signal.Type: GrantFiled: April 16, 2009Date of Patent: February 14, 2012Assignee: AU Optronics Corp.Inventors: Yu-Cheng Tsai, Chao-Chen Wang, Pang-Chiang Chia, Kuo-Hsing Cheng, Mei-Sheng Ma
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Patent number: 8094117Abstract: A display apparatus comprises a shift register array. The shift register array comprises a plurality of shift registers. At least one shift register comprises a first transistor, a second transistor, a third transistor, and a driving circuit. The gate and the first electrode of the first transistor receive an input signal. The gate of the second transistor is coupled to the second electrode of the first transistor. The second electrode of the second transistor generates an output signal. The first electrode of the second transistor receives a clock signal. The third transistor is used to pull down a voltage level at the gate of the second transistor. The driving circuit determines an on/off status of the third transistor in response to the input signal and the output signal.Type: GrantFiled: September 1, 2010Date of Patent: January 10, 2012Assignee: Au Optronics Corp.Inventors: Chih Yuan Chien, Yu Ju Kuo, Ming Sheng Lai, Kuo Hsing Cheng
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Patent number: 7986296Abstract: A thin-film-transistor liquid crystal display comprises a display unit which contains a plurality of scanning lines, a plurality of data lines arranged to cross the plurality of scanning lines and defining a plurality of pixels, and a data driving circuit providing pixel data signals to the plurality of data lines. The pixels of each scanning line are divided into groups of N successive pixels, where N is an integer greater than 1. A polarity of the respective pixel data signals for the data lines within each group is the same as each other. The polarity of the respective pixel data signals for each successive group along at least one of the scanning lines alternates between a first polarity and a second polarity.Type: GrantFiled: May 24, 2004Date of Patent: July 26, 2011Assignee: Au Optronics CorporationInventor: Kuo-Hsing Cheng
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Publication number: 20110156782Abstract: An onion waveform generator and a spread spectrum clock generator (SSCG) using the same are provided. The onion waveform generator includes a value generation unit and an accumulating unit. The value generation unit outputs a counting value. The accumulating unit accumulates the counting value to output a waveform value. The accumulating unit switches from an increasing mode to a decreasing mode if the waveform value is a third boundary value, and the accumulating unit switches from the decreasing mode to the increasing mode if the waveform value is a fourth boundary value.Type: ApplicationFiled: August 31, 2010Publication date: June 30, 2011Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Hong-Yi Huang, Chih-Yuan Hsu, Wei-Sheng Tseng, Kuo-Hsing Cheng, Yuan-Hua Chu
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Publication number: 20110150168Abstract: A clock generator is illustrated. The clock generator mentioned above includes a multimodulus frequency divider and a delta-sigma modulator. The multimodulus frequency divider is archived by switching the phase thereof. The multimodulus frequency divider increases the operating frequency of the clock generator effectively, and has a characteristic with half period resolution for reducing the jitter of an output clock signal when its spectrum is spread. Besides, the delta-sigma modulator increases the accuracy of the triangle modulation and reduces error of quantization by adding a few components therein. Thus, the clock generator could be expanded to a programmable clock generator.Type: ApplicationFiled: March 7, 2011Publication date: June 23, 2011Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Wei-Sheng Tseng, Hong-Yi Huang, Kuo-Hsing Cheng, Yuan-Hua Chu
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Patent number: 7949085Abstract: A shift register unit includes a plurality of register units electrically coupled in cascade. Each register unit outputs an output pulse according to a first clock signal, a second clock signal and an output pulse of a previous register unit. Each register unit includes a first switch unit, a second switch unit, a third switch unit, a fourth switch unit, and a driving unit. The first switch unit is used for conducting the input pulse to a first node when the first switch is turned on. The second switch unit is used for conducting the output pulse of the register unit according to the first clock signal to an output end when the second switch unit is turned on in response to the input pulse. The third switch unit electrically coupled to a supply end is used for conducting a supply voltage to the output end when the second switch unit is turned off.Type: GrantFiled: June 14, 2007Date of Patent: May 24, 2011Assignee: AU Optronics Corp.Inventors: Kuo-hsing Cheng, Ming-sheng Lai, Chih-yuan Chien, Yu-ju Kuo