Patents by Inventor Yung-Chih Chen

Yung-Chih Chen 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).

  • Publication number: 20160046013
    Abstract: A ratchet wrench tool set includes a box, tool bits receivable in the box, two side boards mounted to two sides of the box, and a ratcheting device. The ratcheting device includes a rotary connection plate to which a ratcheting head is mounted. The rotary connection plate is rotatably mounted to the two side boards and rotatable between an operation position and a storage position and includes a constraint step section. The slidable constraint cover has a front end that forms a constraint projection section and is slidably mounted between the two side boards. When the slidable constraint cover is moved frontwards, the constraint projection section engages the constraint step section to retain the ratcheting device in the operation position and when the slidable constraint cover is moved rearward, the constraint projection section disengages from the constraint step section to allow the ratcheting device to rotate to the storage position.
    Type: Application
    Filed: August 9, 2015
    Publication date: February 18, 2016
    Inventors: Yung-Chih CHEN, Chao-Yuan YANG
  • Publication number: 20160034106
    Abstract: A touch apparatus and a touch sensing method thereof are provided. Touch information generated according to received scanning beams is returned by a touch tool, and coordinates of the touch tool on a touch area is calculated according to the returned touch information.
    Type: Application
    Filed: December 26, 2014
    Publication date: February 4, 2016
    Applicant: Coretronic Corporation
    Inventors: Pen-Ning Kuo, Chung-Lung Yang, Yung-Chih Chen
  • Patent number: 9208737
    Abstract: A shift register circuit has a plurality of shift registers. Each of the shift registers has at least four input terminals, a signal input terminal, an output terminal, a pull-up circuit, a driving circuit, a stability driving circuit, and a pull-down circuit. The signal input terminal receives an input signal, and the pull-up circuit is configured to pull up a voltage level of a node of the shift register. The driving circuit outputs a gate driving signal according to the voltage level of the node. The pull-down circuit is configured to pull down the voltage level of the node. The stability driving circuit can pull down the voltage of the output terminal according to the voltages of the four input terminals, and, thus, can reduce the response time of the shift register circuit and increase the operation region of the shift register circuit.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: December 8, 2015
    Assignee: AU Optronics Corp.
    Inventors: Kai-Wei Hong, Pin-Yu Chan, Li-Wei Liu, Yung-Chih Chen
  • Publication number: 20150318051
    Abstract: A shift register circuit includes a first transistor, a capacitor, a pull-up control circuit, a first pull-down circuit, a pull-down control circuit, a second pull-down circuit and a compensation circuit. The compensation circuit further includes a second transistor, a third transistor, a fourth transistor, a fifth transistor and a sixth transistor. The second transistor, the third transistor, the fourth transistor, and the fifth transistor are corporately used to output a compensation pulse; and the sixth transistor is used to output the compensation pulse to a gate terminal of the first transistor thereby compensating a control signal.
    Type: Application
    Filed: September 9, 2014
    Publication date: November 5, 2015
    Inventors: KAI-WEI HONG, PIN-YU CHAN, YUNG-CHIH CHEN, LI-WEI LIU
  • Publication number: 20150316966
    Abstract: An electronic device may include: a circuit board having a board surface; a heat-generating source including a first electronic component mounted on the board surface of the circuit board; and a heat dissipating panel stacked over the circuit board, having a panel surface, and formed with a first recess that is indented inwardly from the panel surface and that is defined by a first recess-defining wall. The first electronic component protrudes from the board surface into the first recess to contact the first recess-defining wall.
    Type: Application
    Filed: April 28, 2015
    Publication date: November 5, 2015
    Applicant: TAIWAN GREEN POINT ENTERPRISES CO., LTD.
    Inventors: Yung-Chih CHEN, Jun-Wei SU, Chien-Hsiang HSIEH, Jung-Chi LIU, Yu-Lin HSIEH
  • Publication number: 20150294734
    Abstract: A gate driver has a plurality of shift registers. Each of the shift registers has at least three input terminals, two signal input terminals, a pull-up circuit, a driving circuit, a stability pull-down control circuit, and a stability pull-down circuit. The three input terminals of each shift register receive three different clock signals. Accordingly, the driving circuit and the stability pull-down control circuit of each shift register are controlled according to the three clock signals, such that a glitch causing by the coupling effect of the parasitic capacitor of the driving circuit is avoided and the stability of the gate driver is improved.
    Type: Application
    Filed: August 8, 2014
    Publication date: October 15, 2015
    Inventors: Pin-Yu Chan, Chia-En Wu, Kai-Wei Hong, Li-Wei Liu, Yung-Chih Chen
  • Publication number: 20150294624
    Abstract: A pixel driving circuit includes a light emitting diode (LED), a data writing unit, two transistors and two compensation units. The gate of the first transistor is coupled to the data writing unit for determining the current flow of the LED. The first compensation unit is coupled to the first transistor for providing a current path from the gate of the first transistor to a first voltage source and a current path from the gate of the first transistor to a second voltage source. The second compensation unit includes a first capacitor coupled to the gate of the first transistor for voltage coupling and providing a differential voltage that equals to the OLED to the gate of the first transistor. The second transistor is coupled between the first voltage source and a second voltage source for enabling or disabling the current flow between the first and second voltage sources.
    Type: Application
    Filed: December 31, 2014
    Publication date: October 15, 2015
    Inventors: LI-WEI LIU, WEI-CHU HSU, YUNG-CHIH CHEN
  • Publication number: 20150255034
    Abstract: A shift register circuit has a plurality of shift registers. Each of the shift registers has at least four input terminals, a signal input terminal, an output terminal, a pull-up circuit, a driving circuit, a stability driving circuit, and a pull-down circuit. The signal input terminal receives an input signal, and the pull-up circuit is configured to pull up a voltage level of a node of the shift register. The driving circuit outputs a gate driving signal according to the voltage level of the node. The pull-down circuit is configured to pull down the voltage level of the node. The stability driving circuit can pull down the voltage of the output terminal according to the voltages of the four input terminals, and, thus, can reduce the response time of the shift register circuit and increase the operation region of the shift register circuit.
    Type: Application
    Filed: July 8, 2014
    Publication date: September 10, 2015
    Inventors: Kai-Wei Hong, Pin-Yu Chan, Li-Wei Liu, Yung-Chih Chen
  • Patent number: 9105347
    Abstract: A shift register includes a signal input unit for receiving and providing an input signal, a signal output unit for controlling whether outputting a clock signal according to the input signal provided by the signal input unit, and a plurality of stable modules. Each of the stable modules is electrically coupled to an output terminal of the signal input unit, an output terminal of the signal output unit, and a default potential. Each of the stable modules receives a corresponding operation signal and is enabled in a duty of the corresponding operation signal, such that both the output terminal of the signal input unit and the output terminal of the signal output unit are electrically coupled to the default potential when the input signal is disabled. Before one of the stable modules is disabled, another of the stable modules has already been enabled.
    Type: Grant
    Filed: October 11, 2011
    Date of Patent: August 11, 2015
    Assignee: AU OPTRONICS CORP.
    Inventors: Kuo-Chang Su, Yung-Chih Chen, Kuo-Hua Hsu
  • Patent number: 9087596
    Abstract: The disclosure provides a gate driving circuit on array applied to a display panel with charge sharing pixel structure. In particular, the gate driving circuit is adapted to receive multi-phase clock signal and includes a plurality of shift registers. Each shift register includes a driving circuit including a first driving transistor and a second driving transistor, a pull-down unit and at least one pull-up unit, so that is capable of generating mutually non-overlapped main gate driving signal and sub gate driving signal. Furthermore, the advantage of the disclosure is to provide a gate driving circuit with simplified circuit structure and circuit layout.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: July 21, 2015
    Assignee: AU OPTRONICS CORP.
    Inventors: Kuo-Chang Su, Yung-Chih Chen, Yu-Chung Yang, Chih-Ying Lin
  • Publication number: 20150144179
    Abstract: A solar cell module includes a solar panel, a first frame strip, a second frame strip, and a connecting member. The first frame strip and the second frame strip are both assembled at the edges of the solar panel. The connecting member includes two top wind plates, a bottom wind plate, a connecting web, and two connecting terminal portions. A gap is formed between the two top wind plates. The connecting web is connected to the two top wind plates and the bottom wind plate, and has a breach and at least one corner. The breach and the gap form a drainage ditch to expose a corner of the solar panel. The two connecting terminal portions extend from the connecting web, so as to be detachably connected to the first frame strip and the second frame strip via the two connecting terminal portions.
    Type: Application
    Filed: May 13, 2014
    Publication date: May 28, 2015
    Applicant: AU Optronics Corporation
    Inventors: Yung-Chih CHEN, Huang-Chi TSENG, Chieh-Min CHENG, Wen-Yuan LIAO
  • Publication number: 20150092257
    Abstract: A laser scanning device and a calibration method thereof are provided. The laser scanning device includes a light-emitting element, an oscillating reflective element, a light receiving element and a micro processing unit. The oscillating reflective element is configured to swing back and forth in an adjustable oscillation frequency, such that laser beams emitted from the light-emitting element are reflected to a predetermined scan region. When a swing angle of the oscillating reflective element is affected by a change of the environment temperature, an oscillation frequency of the laser scanning device is directly changed corresponding to the current environment temperature by the micro processing unit such that the oscillating reflective element correctly swings in a predetermined angle range.
    Type: Application
    Filed: July 3, 2014
    Publication date: April 2, 2015
    Inventors: YUNG-CHIH CHEN, HUNG-CHUN HSU
  • Publication number: 20150084948
    Abstract: A liquid crystal display includes a liquid crystal panel, a source driving circuit, a timing controller, and a gate driving circuit. The source driving circuit converts frame data into a plurality of data voltages, and charges/discharges a first data line according to a data voltage of the plurality of data voltages. The gate driving circuit enables a gate line corresponding to the data voltage. The timing controller sequentially enables a plurality of switch enable lines corresponding to the gate line. A plurality of pixel switches are turned on according to the enabled gate line. A data line switch is turned on according to an enabled switch enable line. The data voltage charges/discharges a corresponding pixel through the turned-on data line switch and one of the turned-on pixel switches.
    Type: Application
    Filed: December 5, 2014
    Publication date: March 26, 2015
    Inventors: Kuo-Hua Hsu, Yung-Chih Chen, Kuo-Chang Su, Yu-Chung Yang
  • Publication number: 20150060641
    Abstract: An optical touch device defining a sensing area includes two scanning modules and a light detecting element. The scanning modules respectively disposed on terminals of a first side of the sensing area include light-emitting elements and reflective elements. The light-emitting element is used for emitting a detective light along a first pathway and the reflective element has a reflective surface for reflecting the detective light such that the detective light is emitted along a second pathway. There is an angle forming between the first side and the second pathway and the reflective surface changes a direction of the second pathway such that the detective light scans in the sensing area. The detective light has a first intensity and a second intensity, in which the first intensity is less than the second intensity. The light detecting element is used for receiving a detective light reflected by an object.
    Type: Application
    Filed: July 9, 2014
    Publication date: March 5, 2015
    Inventors: YUNG-CHIH CHEN, CHUNG-LUNG YANG, LEI-CHIH CHANG
  • Patent number: 8971479
    Abstract: A shift register of a gate driving circuit includes a pull-up unit for pulling up a first output signal and a first gate signal to a high voltage level according to a driving voltage and a high-frequency clock signal, a start-up unit for transmitting a second gate signal, an energy-store unit for providing the driving voltage to the pull-up unit according to the second gate signal, a first discharging unit for pulling down the driving voltage to a first voltage level according to a first control signal, a first leakage-preventing unit for turning off the first discharging unit when the first gate signal reaches the high voltage level, a first pull-down unit for respectively pulling down the first output and first gate signals to the first and a second voltage levels according to the first control signal, and a first control unit for generating the first control signal.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: March 3, 2015
    Assignee: AU Optronics Corp.
    Inventors: Ching-Hui Chang, Pin-Yu Chan, Kai-Wei Hong, Yung-Chih Chen
  • Patent number: 8913020
    Abstract: A touch module including an image sensing unit, a plurality of first reflecting elements, a plurality of second reflecting elements, and a processing unit is provided. The image sensing unit is positioned in correspondence with a first corner of a sensing area and capable of capturing a sensing image to output an image signal. The first reflecting elements and the second reflecting elements respectively have different first angles and different second angles, are disposed along a first and the second edges of the sensing area respectively, and are capable of reflecting a touch object to form a first and a second image in the sensing image. A second corner formed by the first the second edges is diagonal to the first corner. The processing unit is coupled the image sensing unit and receives the image signal to determine the position of the touch object relative to the sensing area.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: December 16, 2014
    Assignee: Young Lighting Technology Inc.
    Inventors: Chien-Sheng Yang, Li-Huang Lu, Yung-Chih Chen
  • Patent number: 8890790
    Abstract: A liquid crystal display device includes a plurality of pixel driving circuits and a pixel array. Each pixel driving circuit of the plurality of pixel driving circuits includes four thin film transistors and has four output terminals, where each thin film transistor is used for driving an output terminal of the four output terminals, and the four output terminals are coupled to two gate lines and two sharing lines respectively for outputting two main output signals and two sharing output signals. The phases and timings of the two main output signals and the two sharing output signals are all the same. A pixel of the pixel array is charged/discharged to a specific voltage level according to a main output signal of the two main output signals, a sharing output signal, and a signal of a data line.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: November 18, 2014
    Assignee: AU Optronics Corp.
    Inventors: Chih-Ying Lin, Chun-Hsin Liu, Kuo-Chang Su, Yung-Chih Chen
  • Publication number: 20140299185
    Abstract: A photoelectrical conversion module includes at least one photoelectrical conversion device, at least one first ribbon, a second ribbon, and at least two encapsulation layers. The photoelectrical conversion device includes a solar substrate having a plurality of finger electrodes. The first ribbon is located on the solar substrate and is intersected with the finger electrodes. The first ribbon has a first connection portion located out of the solar substrate. The second ribbon has at least one second connection portion. The first connection portion is intersected and overlapped with the second connection portion, such that a portion of the first connection portion is located above the second connection portion, and another portion of the first connection portion is located under the second connection portion. The relative position of the first and second ribbons is fixed by the encapsulation layers.
    Type: Application
    Filed: April 2, 2014
    Publication date: October 9, 2014
    Applicant: AU Optronics Corporation
    Inventors: Yung-Chih CHEN, Huang-Chi TSENG
  • Publication number: 20140290742
    Abstract: A frame structure includes a first horizontal board, a second horizontal board, a first vertical board, a third horizontal board, a second vertical board, and at least one support element. The first vertical board is connected to the first and second horizontal boards. The second vertical board is connected to the second and third horizontal boards. At least a portion of the second horizontal board and at least a portion of the third horizontal board protrude from the second vertical board, such that an open accommodating space is defined between the second horizontal board, the second vertical board, and the third horizontal board. The support element is detachably positioned in the accommodating space. A top surface of the support element is abutted against the second horizontal board, and a bottom surface of the support element is abutted against the third horizontal board.
    Type: Application
    Filed: October 16, 2013
    Publication date: October 2, 2014
    Applicant: AU Optronics Corporation
    Inventors: Yu-Jung CHANG, Huang-Chi TSENG, Hung-Ming TSENG, Yung-Chih CHEN
  • Publication number: 20140283897
    Abstract: A solar power module includes a first frame, a second frame, and a solar cell laminate. The first frame includes a first main body and a first clamping portion. The first clamping portion is disposed along the inner edge of the first main body to be ring-shaped. The second frame includes a second main body and a second clamping portion. The second main body abuts against the first main body. The second clamping portion is disposed along the inner edge of the second main body to be ring-shaped and corresponding to the first clamping portion. The periphery of the solar cell laminate is clamped between the first clamping portion and the second clamping portion.
    Type: Application
    Filed: March 21, 2014
    Publication date: September 25, 2014
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Yung-Chih CHEN, Huang-Chi TSENG