Patents by Inventor Sheng-Kai Hsu
Sheng-Kai Hsu 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: 8144139Abstract: In a display panel module, a first group and a second group of data driver chips are separately cascaded on a first side of a display panel. A scan driver chip is disposed on a second side of the display panel. A first flexible printed circuit (FPC) is connected between a printed circuit board (PCB) and the display panel for transmitting signals to the first group of data driver chips, the second group of data driver chips and the scan driver chip, respectively.Type: GrantFiled: March 19, 2007Date of Patent: March 27, 2012Assignee: AU Optronics Corp.Inventors: Sheng-Kai Hsu, Chih-Hsiang Yang
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Publication number: 20120032603Abstract: A light emitting device includes a plurality of light emitting modules and a plurality of voltage controlling circuits capable of being independently controlled. Each voltage controlling circuit includes a dynamic voltage controlling module, a current controlling module, and a luminance controlling module. The dynamic voltage controlling module is used for comparing a voltage level at a second terminal of the light emitting module and a voltage level of a reference voltage source, so as to output a first voltage. The current controlling module is used for adjusting a bias current flowing through the light emitting module, according to the first voltage. The luminance controlling module is used for comparing the first voltage with a clock signal, and for generating a pulse width modulation signal according to a result of the comparison, so as to dynamically control a duty cycle of the light emitting module.Type: ApplicationFiled: March 15, 2011Publication date: February 9, 2012Inventors: Ching-Hung Wang, Ching-Yi Chen, Sheng-Kai Hsu
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Publication number: 20120019160Abstract: A LED driving method includes steps of: providing a first pulse width modulation (PWM) signal for determining a brightness of a LED; obtaining a duty cycle of the first PWM signal; and selectively enabling the LED to work with a PWM dimming mode or a direct current (DC) dimming mode according to a relative relationship between a magnitude of the obtained duty cycle and a preset threshold value. Since the LED is performed with a two stage brightness control by use of mixed dimming mode, the driving efficiency of the LED can be improved.Type: ApplicationFiled: March 8, 2011Publication date: January 26, 2012Applicant: AU OPTRONICS CORP.Inventors: Hung-Ching LEE, Ching-Chou Yu, Sheng-Kai Hsu, Dang-Ko Wang
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Publication number: 20110248971Abstract: The present invention relates to a gate driver circuit and application of the same in a liquid crystal display (LCD) for improving the display performance thereof. The gate driver circuit includes at least one PMOS transistor and two NMOS transistors configured to modify a falling edge of a corresponding scanning signal according to a linear function that defines a waveform shape for the scanning signal.Type: ApplicationFiled: April 9, 2010Publication date: October 13, 2011Applicant: AU OPTRONICS CORPORATIONInventors: Wen-Chiang Huang, Sheng-Kai Hsu
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Publication number: 20110156603Abstract: An exemplary light-emitting diode (LED) driving circuit includes a LED driving IC, at least a LED string and at least a resistor. The LED string each is electrically coupled between a power source voltage and a control terminal of the LED driving IC and whereby a driving current of the LED string is subjected to the control of the LED driving IC. The resistor each is electrically coupled to between the control terminal and a predetermined potential. Moreover, a LED driving method also is provided.Type: ApplicationFiled: November 23, 2010Publication date: June 30, 2011Applicant: AU OPTRONICS CORP.Inventors: Chien-Ming KO, Yueh-Han Li, Sheng-Kai Hsu, Hung-Ching Lee
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Publication number: 20110122123Abstract: A gate driving circuit includes several driving circuit units and several switch units. Each driving circuit unit outputs several driving signals to several scan lines sequentially. One of the switch units is respectively disposed between two adjacent driving circuit units and conducts or blocks a first and a second clock signal transmitted to driving circuit units.Type: ApplicationFiled: January 28, 2011Publication date: May 26, 2011Applicant: AU OPTRONICS CORPORATIONInventor: Sheng-Kai Hsu
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Publication number: 20110080383Abstract: A display panel includes a display area, a first bonding area, and a second bonding area. The second bonding area is used for bonding with a gate driver. The second bonding area includes a plurality of input pads and a plurality of output pads. The plurality of input pads is disposed on the two sides of the second bonding area in the first direction and on the two sides of the second bonding area only the plurality of input pads is disposed in the second direction. The plurality of output pads is disposed on the center region of the second bonding area in the first direction and on the center region of the second bonding area only the plurality of output pads is disposed in the second direction.Type: ApplicationFiled: September 12, 2010Publication date: April 7, 2011Inventors: Wen-Chiang Huang, Sheng-Kai Hsu
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Patent number: 7903223Abstract: In a display panel module, data driver chips are cascaded to one another and mounted on a display panel. A first flexible printed circuit (FPC) board is connected between a printed circuit board (PCB) and one end of the cascaded data driver chips for transmitting data signals to the data driver chips. A second FPC board is connected between the PCB and the cascaded data driver chips for transmitting power signals to the data driver chips.Type: GrantFiled: February 14, 2007Date of Patent: March 8, 2011Assignee: AU Optronics CorporationInventors: Sheng-Kai Hsu, Chih-Hsiang Yang
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Patent number: 7903076Abstract: A gate driving circuit includes several driving circuit units and several switch units. Each driving circuit unit outputs several driving signals to several scan lines sequentially. One of the switch units is respectively disposed between two adjacent driving circuit units and conducts or blocks a first and a second clock signal transmitted to driving circuit units.Type: GrantFiled: February 14, 2007Date of Patent: March 8, 2011Assignee: Au Optronics CorporationInventor: Sheng-Kai Hsu
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Patent number: 7903073Abstract: A display is provided. The display includes a first timing controller, a second timing controller and drivers. The first timing controller receives and transmits a first portion of pixel values, in which the first portion of the pixel values includes the pixel values of at least two non-adjacent pixels. The second timing controller receives and transmits a second portion of the pixel values, in which the second portion of the pixel values includes the pixel values of at least two non-adjacent pixels. Each of the drivers receives respectively a part of the first portion of the pixel values transmitted by the first timing controller and a part of the second portion of the pixel values transmitted by the second timing controller. A method of transmitting image data in the display is also disclosed.Type: GrantFiled: November 29, 2007Date of Patent: March 8, 2011Assignee: Au Optronics CorporationInventors: Chun-Fan Chung, Sheng-Kai Hsu, Yung-Tse Cheng, Szu-Che Yeh, Li-Ru Lyu, Chih-Sung Wang
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Publication number: 20110050680Abstract: The present invention in one aspect relates to a source driver comprising a first digital-to-analog converter with a positive polarity (PDAC), a second digital-to-analog converter with a negative polarity (NDAC), a first operational amplifier and a second operational amplifier. Each operational amplifier is characterized with a 1st & 2nd stage and an output stage. Both the PDAC and NDAC are coupled to the first and second operational amplifiers through a first pair of switches. The 1st & 2nd and output stages of the first operational amplifier are coupled to the 1st & 2nd and output stages of the second operational amplifier through a second pair of switches. The first and second operational amplifiers are coupled to odd data lines and even data line through a third pair of switches. Further, the amplitudes of the operational voltages for the PDAC, the NDAC and the output stages first and second operational amplifiers are set to be between the supply voltage and the ground voltage.Type: ApplicationFiled: September 1, 2009Publication date: March 3, 2011Applicant: AU OptronicsInventors: Chun-Fan Chung, Sheng-Kai Hsu
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Patent number: 7830351Abstract: An LCD gate driver circuitry having a control circuit to adjust the driving current according to a bias control signal, wherein the control circuit comprises a plurality of PMOS switching elements connected in parallel and a plurality of NMOS switching elements connected in parallel. These switching elements form a plurality of PMOS/NMOS switching element pairs. Each of the pairs serves as a current booster stage in the gate driver circuitry. The “ON”/“OFF” state of each switching element pair is controlled by a separate bias signal so that the switching element pairs can be selectively turned on in order to adjust the driver current as needed. As such, the same gate driver circuitry can be used with different LCD panels.Type: GrantFiled: October 11, 2005Date of Patent: November 9, 2010Assignee: Au Optronics CorporationInventors: Chih-Sung Wang, Chih-Hsiang Yang, Yu-Min Hsu, Sheng-Kai Hsu
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Publication number: 20100275003Abstract: A method for express execution of internet service accessing with a touch-control interface for a computer system is provided. A computer system is installed with a first operating system in a data storage therein. The method includes the following steps: the computer system executing the BIOS of the computer system; before loading and executing the first operating system, the computer system detecting and activating a touch-control display device; the touch-control display device displaying executive item icons representing internet service accessing programs; detecting the executive item icon selection by the user; based on the selection, loading and executing the first operating system; and executing the internet service accessing program corresponding to the selected executive item icon.Type: ApplicationFiled: June 11, 2010Publication date: October 28, 2010Applicant: GETAC TECHNOLOGY CORPORATIONInventors: Sheng-Kai Hsu, Hsien-Wen Chang
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Publication number: 20100275004Abstract: A method for express execution of navigation function is provided. A computer system is installed with a first operating system in a data storage device therein. The method includes the following steps: the computer system executing the BIOS of the computer system; before loading and executing the first operating system, the computer system detecting and activating a touch-control display device; the touch-control display device displaying an executive item icon representing the navigation function; detecting the executive item icon selection by the user; based on the selection, loading and executing the first operating system; and executing the navigation function corresponding to the selected executive item icon.Type: ApplicationFiled: June 29, 2010Publication date: October 28, 2010Applicant: GETAC TECHNOLOGY CORPORATIONInventors: Sheng-Kai Hsu, Hsien-Wen Chang
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Publication number: 20100263918Abstract: A circuit board and a layout method therefor are provided. The circuit board is adapted for coupling between two circuits and includes multiple first pins, multiple second pins, a chip-disposing area for disposing a circuit chip, and a routing area including electrical routes. The first pins are coupled to one the circuit, and the second pins are coupled to the other one circuit. Two terminals of each of a first group of electrical routes of the electrical routes respectively are coupled to one of the first pins and the chip-disposing area, and two terminals of each of a second group of electrical routes of the electrical routes respectively are coupled to the chip-disposing area and one of the second pins. The second group of electrical routes and at least one of the first pins therebetween do not have any one of the first group of electrical routes.Type: ApplicationFiled: June 29, 2010Publication date: October 21, 2010Inventors: Yung-Hsu LIN, Sheng-Kai Hsu, Chih-Sung Wang
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Publication number: 20100207930Abstract: A driving apparatus for driving a liquid crystal display panel includes a timing controller, a plurality of pairs of transmission lines, a plurality of source driving circuits, a plurality of terminal resistors, and a plurality of auxiliary resistors. The timing controller functions to generate a plurality of differential signals outputted via a plurality of output ports. Each output port includes two output ends for outputting a corresponding differential signal. Each pair of transmission lines is coupled to the timing controller for receiving a corresponding differential signal. Each source driving circuit is coupled to the pairs of transmission lines for receiving the differential signals so as to generate a plurality of data signals. Each terminal resistor is coupled between two terminals of a corresponding pair of transmission lines. Each auxiliary resistor is coupled between two output ends of a corresponding output port of the timing controller.Type: ApplicationFiled: April 17, 2009Publication date: August 19, 2010Inventors: Chun-Fan Chung, Sheng-Kai Hsu
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Patent number: 7774586Abstract: A method and system for express execution of multimedia playing is provided. A computer system is installed with a first operating system and a second operating system in a data storage therein. The method includes the following steps: the computer system finishing basic booting process; the computer system loading and executing a driver to activate a touch-control display device; the touch-control display device displaying icons representing detected audiovisual players; detecting the icon selection by the user; based on the selection, loading and executing the corresponding operating system; and executing the application program corresponding to the selected audiovisual player.Type: GrantFiled: September 21, 2005Date of Patent: August 10, 2010Assignee: Getac Technology CorporationInventor: Sheng-Kai Hsu
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Patent number: 7750661Abstract: A method of testing a liquid crystal display includes the steps of forming a plurality of chip positioning areas with a plurality of data connecting ends on a glass substrate, forming a plurality of data wires between two adjacent chip positioning areas which are linked to the plurality of data connecting ends of the two adjacent chip positioning areas, forming a testing circuit on each chip positioning area, which is linked to a predetermined amount of data connecting ends, and probing two testing circuits of two chip positioning areas to obtain an electrical parameter.Type: GrantFiled: March 22, 2007Date of Patent: July 6, 2010Assignee: AU Optronics Corp.Inventor: Sheng-kai Hsu
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Publication number: 20100111346Abstract: An electronic device includes a casing defining a sound receiving chamber therein, and a microphone accommodated in the sound receiving chamber. The sound receiving chamber has an arcuate surface being part of an outer elliptical surface. The microphone is located at a focus of the elliptical surface, with a sound receiving surface of the microphone facing the sound receiving chamber. The other focus of the elliptical surface is disposed at a position out of the sound receiving chamber.Type: ApplicationFiled: March 9, 2009Publication date: May 6, 2010Applicant: FOXCONN TECHNOLOGY CO., LTD.Inventors: PO-YAO HSIAO, SHENG-KAI HSU, KUEN-YING OU
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Publication number: 20100053060Abstract: 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: ApplicationFiled: February 24, 2009Publication date: March 4, 2010Inventors: Meng-Ju WU, Sheng-Kai Hsu, Yung-Tse Cheng, Ming-Hung Tu