Patents by Inventor Wen-Pin Chen

Wen-Pin 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).

  • Patent number: 7907696
    Abstract: A shift register includes a plurality of stages cascade-connected with each other. Each stage includes a pull-up circuit, a pull-up driving circuit, and a pull-down circuit. The pull-up circuit coupled to a first clock signal is used for providing an output signal. The pull-up driving circuit includes a control circuit and a first transistor. The control circuit has a gate coupled to a previous stage, and a drain coupled to a second clock signal. The first transistor includes a gate coupled to the source of the control circuit, a drain coupled to a driving end of the previous stage, and a source coupled to a first input end. The pull-down circuit pulls down voltage on the first input end.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: March 15, 2011
    Assignee: Au Optronics Corp.
    Inventors: Wen-pin Chen, Lee-hsun Chang, Je-hao Hsu
  • Publication number: 20100309191
    Abstract: A shift register of an LCD device operates based on two clock signals and maintains the gate voltage of an output transistor switch using two pull-down transistor switches. The gate voltages of the pull-down transistor switches are switched periodically between the high and low level of the clock signals. During the output period, the transistor switches have negative gate-source voltages so as to reduce leakage.
    Type: Application
    Filed: November 18, 2009
    Publication date: December 9, 2010
    Inventors: Je-Hao Hsu, Wen-Pin Chen, Chiu-Mei Yu, Lee-Hsun Chang
  • Publication number: 20100201902
    Abstract: In a display device and a repairing method therefor, the display device includes a gate line and two gate-on-array circuits arranged at two sides thereof. Each of the gate-on-array circuits includes a stage coupled to the gate line. Each the stage includes a transistor and a repair circuit. The first source/drain electrode of the transistor is coupled to the gate line, and the second source/drain electrode of the transistor is coupled to receive a clock pulse signal. The repair circuit includes a first terminal coupled to the gate electrode of the transistor, a second terminal coupled to a predetermined potential, and at least one control terminal adapted to receive at least one repair signal to pull the potential on the gate electrode of the transistor to the predetermined potential. The transistor maintains at off-state when the at least one repair signal is supplied to the repair circuit.
    Type: Application
    Filed: September 3, 2009
    Publication date: August 12, 2010
    Inventors: Je-Hao HSU, Wen-Pin Chen, Chiu-Mei Yu, Lee-Hsun Chang
  • Publication number: 20100085083
    Abstract: A gate driving circuit having a low leakage current control mechanism is disclosed for providing a plurality of gate signals forwarded to a plurality of gate lines respectively. The gate driving circuit includes a plurality of shift registers. Each shift register includes a driving unit, an energy store unit, a buffer unit, a voltage regulation unit, and a control unit. The driving unit generates a gate signal based on a driving control voltage and a first clock. The buffer unit functions to receive a start pulse signal. The energy store unit provides the driving control voltage through performing a charging process based on the start pulse signal. The control unit generates a control signal based on the first clock and a second clock having a phase opposite to the first clock. The voltage regulation unit regulates the driving control voltage based on the control signal.
    Type: Application
    Filed: December 9, 2008
    Publication date: April 8, 2010
    Inventors: Lee-Hsun Chang, Wen-Pin Chen, Je-Hao Hsu, Chiu-Mei Yu
  • Publication number: 20100079443
    Abstract: An apparatus, a shifter register unit, a liquid crystal display device and a method for eliminating afterimage are provided herein, which merely utilize a high voltage source delay discharging phenomenon oriented from a powered-off power device to lead any two of a plurality of existing signal sources employed by the shift register unit to reach a high level used for controlling of charge and discharge of a discharge switching unit corresponding to a pixel unit. Therefore, a power-off afterimage problem could be improved and a signal reset function for power-on also can be achieved.
    Type: Application
    Filed: September 1, 2009
    Publication date: April 1, 2010
    Applicant: AU Optronics Corp.
    Inventors: Lee-Hsun Chang, Chiu-Mei Yu, Wen-Pin Chen, Je-Hao Hsu
  • Publication number: 20100054392
    Abstract: A shift register includes a plurality of stages cascade-connected with each other. Each stage includes a pull-up circuit, a pull-up driving circuit, and a pull-down circuit. The pull-up circuit coupled to a first clock signal is used for providing an output signal. The pull-up driving circuit includes a control circuit and a first transistor. The control circuit has a gate coupled to a previous stage, and a drain coupled to a second clock signal. The first transistor includes a gate coupled to the source of the control circuit, a drain coupled to a driving end of the previous stage, and a source coupled to a first input end. The pull-down circuit pulls down voltage on the first input end.
    Type: Application
    Filed: April 23, 2009
    Publication date: March 4, 2010
    Applicant: AU OPTRONICS CORP.
    Inventors: Wen-pin Chen, Lee-hsun Chang, Je-hao Hsu
  • Publication number: 20090256831
    Abstract: A display apparatus and a circuit reparation method thereof are provided. The display apparatus comprises a control module, a first gate on array (GOA) circuit, a second GOA circuit, and a variable voltage source. The control module generates at least one control signal. The first GOA circuit is electrically connected to the control module according to a first leading wire in advance. The second GOA circuit is electrically connected to the control module according to a second leading wire in advance. The variable voltage source provides a predetermined voltage level. When the first GOA circuit is disabled, the first GOA circuit and the control module are adjusted to be electrically disconnected, and the first leading wire is electrically connected to the variable voltage source. The display apparatus is operated in response to the control signal and the predetermined voltage level.
    Type: Application
    Filed: August 13, 2008
    Publication date: October 15, 2009
    Applicant: AU OPTRONICS CORP.
    Inventors: Je-Hao Hsu, Lee-Hsun Chang, Wen-Pin Chen, Chiu Mei Yu
  • Publication number: 20090127984
    Abstract: A motor magnetic pre-stressing apparatus includes a stator and a rotor. The rotor is pivoted with the stator. The stator includes a lower insulating frame and a magnetic-guiding ring, and the magnetic-guiding ring is installed on the lower insulating frame. The rotor has a magnetic element, and the magnetic element has even radial magnetic poles. Thereby, by utilizing the attraction between magnetic-guiding ring and the magnetic element, a magnetic pre-stressing force is generated to absorb the rotor downwards so that the rotor rotates stably and smoothly.
    Type: Application
    Filed: November 21, 2007
    Publication date: May 21, 2009
    Inventors: Zhen-Yu Lee, Wen-Pin Chen, Jen-Chieh Chang, Sheng-Pin Su
  • Publication number: 20090121043
    Abstract: A horizontal-type atomizing apparatus with automatically controlled working fluid level includes a portable horizontal base internally defining a dispensing chamber and an atomizing chamber horizontally opposite to but communicating with each other; a pressure container assembled to the dispensing chamber for supplying a working fluid into the dispensing chamber and the atomizing chamber; and an atomizing module arranged on the base. By utilizing the principle of atmospheric pressure balance, the working fluid in the dispensing chamber is maintained at a constant level, allowing the atomizing module to obtain constant volume of working fluid and constant working load to produce a stable amount of mist containing uniformly-sized droplets. An ambient atmospheric condition sensing unit is included for detecting atmospheric conditions in the environment surrounding the atomizing apparatus, regulating the amount of mist to be produced, and generating a warning signal for timely replenishing the working fluid.
    Type: Application
    Filed: November 11, 2008
    Publication date: May 14, 2009
    Applicant: KAI CHIH INDUSTRIAL Co., Ltd.
    Inventors: Nai Ying JEAN, Wen Pin Chen
  • Publication number: 20080278911
    Abstract: A cooling fan and dynamic pressure bearing structure is disclosed. The cooling fan includes a base portion, a bearing portion, a dynamic pressure bearing, a coil assembly, and an impeller assembly. The dynamic pressure bearing is received in the bearing portion. A plurality of pressure collecting grooves is arranged in an inner surface of a shaft hole of the dynamic pressure bearing at intervals for receiving lubricating oil. Each pressure collecting groove has two slanted grooves extending slantways which connect with each other at one end to form a connecting point. A transverse groove extends from the connecting point backward the direction of the two slanted grooves. Based on the special design of the pressure collecting groove, the present invention increases the area that creates pressure to increase the intensity of the pressure and decrease the number of pressure collecting grooves to reduce processing loads and production costs.
    Type: Application
    Filed: May 11, 2007
    Publication date: November 13, 2008
    Inventors: Wen-Pin Chen, Sheng-Pin Su, Zhen-Yu Lee, Meng-Jia Tsai, Mei-Lin Lai
  • Publication number: 20080264224
    Abstract: A circular saw mechanism includes a base having a work surface for supporting a workpiece and a saw arm. The saw arm is pivotally connected to the base and is movable vertically upwards and downwards and includes a connecting device and a motor fixedly mounted thereon. A saw blade is mounted to the saw arm and is rotatable by the motor for cutting a workpiece on the work surface. A handle defining a plane is pivotally connected to the connecting device and is movable relative to the saw arm between a vertical position, where the plane is maintained perpendicular to the work surface, and a horizontal position, where the plane is maintained parallel to the work surface. The handle has a first grip and a second grip fixedly connected together, and an operating lever mounted to the first grip and operable to control operation of the motor.
    Type: Application
    Filed: April 21, 2008
    Publication date: October 30, 2008
    Applicant: Rexon Industrial Corp., Ltd.
    Inventor: Wen Pin Chen
  • Publication number: 20080041972
    Abstract: A spraying structure for an atomizer includes a main body, an interior of which is provided with a vertically installed liquid container with its opening facing upward, and with a liquid delivery member being located above the container for sucking out the liquid; a power part; and a spraying device. The main body can be provided with the spraying device which takes required power from the power part, and is provided with an actuator to operate a vibratory plate. The vibratory plate is configured slantingly with respect to an end head of the liquid delivery member. Through an action to the vibratory plate by the actuator, liquid in a membrane shape on a surface of the liquid delivery member can be atomized to be sprayed out in a tilted direction, thereby achieving a function of spraying laterally.
    Type: Application
    Filed: August 2, 2006
    Publication date: February 21, 2008
    Inventors: Wen-Pin Chen, Nai-Ying Jean
  • Publication number: 20070291469
    Abstract: A switch panel assembly is mounted on a wall and has a switch panel, a light-guiding rod, a circuit board and a switch. The switch panel has two lamp holders formed on and protruding from the switch panel. The light-guiding rod is mounted between the two lamp holders. The circuit board has at least one lamp held in the lamp holders and an optical sensor held in one of the lamp holders. The switch is connected electrically to an illuminating device. The optical sensor is used to detect ambient lights such that the at least one lamp can be automatically lighted up when an ambient environment is dark. The light-guiding rod guides, refracts and scatters the lights emitting from the lamp to brighten the ambient environment for a people easily and quickly finding and switching the switch.
    Type: Application
    Filed: June 15, 2006
    Publication date: December 20, 2007
    Inventor: Wen-Pin Chen
  • Publication number: 20070169775
    Abstract: A mechanism for the draft of a high frequency atomization device, which has particular application to supporting a cantilever excitation device on the surface of a large amount of operating liquid using a floating support method, thereby enabling a vibratable plate to accurately position on the liquid surface of any height and bring into effect quantitative power. The excitation device is structured from a block piezoelectric ceramic actuator and the vibratable plate, which extends from one side of the actuator and joined thereto using a cantilever method. The excitation device floats on the liquid surface of the operating liquid using a floating support. An operating side of a free end of the vibratable plate maintains a definite directed amount of effect on the liquid surface, and is able to acquire comparable load conditions and bring into effect quantitative power.
    Type: Application
    Filed: January 20, 2006
    Publication date: July 26, 2007
    Inventors: Wen-Pin Chen, Nai-Ying Jean
  • Patent number: D573968
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: July 29, 2008
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Wen-Pin Chen, Chien-Ju Huang
  • Patent number: D574350
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: August 5, 2008
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Pei-Shiuan Yu, Wen-Pin Chen
  • Patent number: D596597
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: July 21, 2009
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Pei-Shiuan Yu, Shiao-Chin Huang, Wen-Pin Chen
  • Patent number: D596598
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: July 21, 2009
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Shiao-Chin Huang, Pei-Shiuan Yu, Wen-Pin Chen
  • Patent number: D613703
    Type: Grant
    Filed: October 26, 2009
    Date of Patent: April 13, 2010
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Wen-Pin Chen
  • Patent number: D613724
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: April 13, 2010
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Chi-Hsiang Kao, Wen-Pin Chen