Patents by Inventor Cheng-Chieh Liu

Cheng-Chieh Liu 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: 8537307
    Abstract: A display panel including a first substrate having a first panel area and a second panel area, a second substrate disposed above the first panel area, a third substrate disposed above the second panel area, a first liquid crystal layer disposed between the first substrate and the second substrate, a second liquid crystal layer disposed between the first substrate and the third substrate, a first active device array disposed on the first substrate to drive the first liquid crystal layer, a second active device array disposed on the third substrate to drive the second liquid crystal layer, an integrated circuit (IC), and a conductive element is provided. The IC is disposed on the third substrate. The conductive element is disposed between the first substrate and the third substrate to electrically connect the IC to the first active device array.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: September 17, 2013
    Assignees: Dongguan Masstop Liquid Crystal Display Co., Ltd., Wintek Corporation
    Inventors: Po-Hsien Wang, Cheng-Chieh Liu, Jyh-Yeuan Ma
  • Publication number: 20130156616
    Abstract: A manufacturing method of a thin fan comprises the steps of: providing a plastic material containing a plurality of metal particles; molding the plastic material into a housing; removing a part of a surface of the housing to form a circuit layout area at the housing; and forming a metal layer in the circuit layout area.
    Type: Application
    Filed: April 16, 2012
    Publication date: June 20, 2013
    Inventors: Chia-Yuan CHANG, Han-Pei Wang, Cheng-Chieh Liu, Wen-Ping Teng
  • Patent number: 8100674
    Abstract: A fan has a fan frame for accommodating a first circuit board and a second circuit board. A fan frame includes a housing, a base, and at least one supporting element. The base is disposed in the housing, and the base includes a bottom portion and a tube portion, which is connected to and extended from the bottom portion. The supporting element is connected between the housing and the base. There is a predetermined distance between the bottom portion of the base and an end of the housing so as to form an accommodating space, the first circuit board is disposed on the base and is located on a first side of the bottom portion facing the tube portion, and the second circuit board is disposed in the accommodating space which is located on a second side of the bottom portion facing away from the tube portion.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: January 24, 2012
    Assignee: Delta Electronics, Inc.
    Inventors: Wei-Yi Lin, Hui-Neng Yang, Po-Hui Shen, Cheng-Chieh Liu, Kun-Ming Lee, Cheng-Wei Yan
  • Publication number: 20110317086
    Abstract: A display panel including a first substrate having a first panel area and a second panel area, a second substrate disposed above the first panel area, a third substrate disposed above the second panel area, a first liquid crystal layer disposed between the first substrate and the second substrate, a second liquid crystal layer disposed between the first substrate and the third substrate, a first active device array disposed on the first substrate to drive the first liquid crystal layer, a second active device array disposed on the third substrate to drive the second liquid crystal layer, an integrated circuit (IC), and a conductive element is provided. The IC is disposed on the third substrate. The conductive element is disposed between the first substrate and the third substrate to electrically connect the IC to the first active device array.
    Type: Application
    Filed: June 29, 2011
    Publication date: December 29, 2011
    Applicants: WINTEK CORPORATION, DONGGUAN MASSTOP LIQUID CRYSTAL DISPLAY CO., LTD.
    Inventors: Po-Hsien Wang, Cheng-Chieh Liu, Jyh-Yeuan Ma
  • Publication number: 20110134329
    Abstract: A method of performing video stabilization may be applied to unstable frames captured by a vibrating camera. The method includes checking if the frame is vibrating and calculating a degree of vibration for compensating a vibration area. Based on block motion estimation, a feature block selected from nine fixed observation blocks is used to obtain a vibration vector. The vibration vector is used to adjust the vibration frame for restoring the frame.
    Type: Application
    Filed: June 4, 2010
    Publication date: June 9, 2011
    Inventors: Chao-Ho Chen, Jie-Ru Chen, Sheng-Hong Wang, Cheng-Chieh Liu
  • Publication number: 20110102344
    Abstract: A portable electronic device including a main body and a wireless input unit is provided. The main body has a display surface and an accommodating portion opposite the display surface. The accommodating portion defines an accommodating space substantially parallel to the display surface. The wireless input unit is placed inside the accommodating space and capable of being extracted from the accommodating space. The wireless input unit is separate from the main body. The wireless input unit includes a touch panel, a pattern layer, and a control circuit. The touch panel has an operation surface and a back surface opposite the operation surface. The pattern layer is disposed on the back surface of the touch panel and has a plurality of control area patterns. The control circuit is disposed on the touch panel.
    Type: Application
    Filed: October 28, 2010
    Publication date: May 5, 2011
    Inventors: Nai Heng Chang, Cheng-Chieh Liu, Chih-Chang Lai
  • Patent number: 7701158
    Abstract: A fan system includes a driving device, a speed detecting device and a logic device. The driving device generates a speed detecting signal and a predetermined alarm signal. The speed detecting device, which is electrically connected with the driving device, receives the speed detecting signal, and generates a low speed signal when the speed detecting signal is lower than a reference signal. The logic device is respectively electrically connected with the driving device and the speed detecting device, and generates an alarm signal when the logic device receives the predetermined alarm signal or the low speed signal.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: April 20, 2010
    Assignee: Delta Electronics, Inc.
    Inventors: Chia-Feng Wu, Cheng-Chieh Liu, Ching-Sen Hsieh, Yueh-Lung Huang, Wen-Shi Huang
  • Patent number: 7694157
    Abstract: A heat dissipation device for cooling an electronic device. The heat dissipation device comprises a fan, a controller connected to the fan and coupled to the electronic device and a sensor connected to the controller and sending a first signal to the controller by detecting a temperature variation in the electronic device. The electronic device sends a second signal to the controller, the controller changes the speed of the fan according to either the first signal or the second signal.
    Type: Grant
    Filed: August 23, 2004
    Date of Patent: April 6, 2010
    Assignee: Delta Electronics, Inc.
    Inventors: Chia-Feng Wu, Cheng-Chieh Liu, Yueh Lung Huang, Yi-Chieh Cho
  • Patent number: 7508375
    Abstract: A method for controlling a control of a display comprising a control cluster. The display is placed in a first or a second orientation. The method first detects the orientation of the display. Next, the method assigns a function of the control according to the orientation. If the orientation is the first orientation, the control is enabled to execute a first function. If the orientation is the second orientation, the control is enabled to execute a second function.
    Type: Grant
    Filed: March 14, 2005
    Date of Patent: March 24, 2009
    Assignee: Qisda Corporation
    Inventor: Cheng-Chieh Liu
  • Patent number: 7425809
    Abstract: A heat dissipation device comprises a fan motor, a drive circuit, and a reset current reduction circuit. When the fan motor is locked, an input terminal of the reset current reduction circuit receives an alarm signal, and an output terminal thereof outputs a voltage signal, which is larger than a reference voltage generated as the fan motor is at a low rotation rate, so as to decrease a reset current of the fan motor.
    Type: Grant
    Filed: March 9, 2006
    Date of Patent: September 16, 2008
    Assignee: Delta Electronics, Inc.
    Inventors: Po-Hui Shen, Cheng-Chieh Liu, Ching-Sen Hsieh, Yueh-Lung Huang
  • Publication number: 20080053639
    Abstract: A fan has a fan frame for accommodating a first circuit board and a second circuit board. A fan frame includes a housing, a base, and at least one supporting element. The base is disposed in the housing, and the base includes a bottom portion and a tube portion, which is connected to and extended from the bottom portion. The supporting element is connected between the housing and the base. There is a predetermined distance between the bottom portion of the base and an end of the housing so as to form an accommodating space, the first circuit board is disposed on the base and is located on a first side of the bottom portion facing the tube portion, and the second circuit board is disposed in the accommodating space which is located on a second side of the bottom portion facing away from the tube portion.
    Type: Application
    Filed: September 7, 2007
    Publication date: March 6, 2008
    Applicant: DELTA ELECTRONICS, INC.
    Inventors: Wei-Yi Lin, Hui-Neng Yang, Po-Hui Shen, Cheng-Chieh Liu, Kun-Ming Lee, Cheng-Wei Yan
  • Publication number: 20070262977
    Abstract: A method for automatically powering up a display and a display using the same are disclosed. When a display device is connected to power from power disconnection, a flag is set as a power-on status. It is then determined whether a display signal is received by the display device, wherein the display device presents an image according to the display signal. When the flag is the power-on status and the display signal is received by the display device, the display device is caused to power up and present the image automatically.
    Type: Application
    Filed: May 8, 2007
    Publication date: November 15, 2007
    Applicant: BENQ CORPORATION
    Inventor: Cheng-Chieh Liu
  • Patent number: 7291949
    Abstract: A modified mounting structure for a heat-dissipating device. The heat-dissipating device has a motor and a seat with a slot mounted on a base or the cover portion of a stator thereof. The seat secures a motor controller of the heat-dissipating device detecting phase changes of the magnetic poles of the motor. The structure of a heat-dissipating device reduces required components, manufacturing cost and assembly time, and the control circuit is greatly simplified.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: November 6, 2007
    Assignee: Delta Electronics, Inc.
    Inventors: Cheng-Chieh Liu, Yi-Fang Chou, Tsu-Liang Lin, Ming-Shi Tsai, Kuo-Cheng Lin
  • Publication number: 20070145920
    Abstract: A fan system includes a driving device, a speed detecting device and a logic device. The driving device generates a speed detecting signal and a predetermined alarm signal. The speed detecting device, which is electrically connected with the driving device, receives the speed detecting signal, and generates a low speed signal when the speed detecting signal is lower than a reference signal. The logic device is respectively electrically connected with the driving device and the speed detecting device, and generates an alarm signal when the logic device receives the predetermined alarm signal or the low speed signal.
    Type: Application
    Filed: December 14, 2006
    Publication date: June 28, 2007
    Inventors: Chia-Feng Wu, Cheng-Chieh Liu, Ching-Sen Hsieh, Yueh-Lung Huang, Wen-Shi Huang
  • Patent number: 7218073
    Abstract: A fan motor speed control circuit is disclosed. The circuit includes a digital/analog converting unit and a driving unit. The digital/analog converting unit takes charge of receiving a pulse width modulation (PWM) signal and converting it into a voltage signal. The driving unit is connected with the digital/analog converting unit in series for receiving the voltage signal, while the driving unit provides a first predetermined voltage level and a second predetermined voltage level as references. The fan motor is kept to run with a low constant rotation speed when the voltage signal level is higher than the first predetermined voltage level, with a full constant rotation speed when the voltage signal level is lower than the second predetermined voltage level, and with a variable rotation speed when the voltage signal level is lower than the first predetermined voltage level and higher than the second predetermined voltage level.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: May 15, 2007
    Assignee: Delta Electronics Inc.
    Inventors: Wen-shi Huang, Ming-shi Tsai, Cheng-chieh Liu, Tsung-jung Hsieh, Yuch-lung Huang
  • Patent number: 7164249
    Abstract: A fan control device receives a reference revolution signal to control the rotation speed of a fan. The fan control device includes a reference signal generating module, a revolution modifying module and a fan driving module. The reference signal generating module generates a first reference signal and a second reference signal. The revolution modifying module receives the first reference signal and the second reference signal, and generates a target revolution signal according to the reference revolution signal and the first and second reference signals. The fan driving module receives the target revolution signal and generates a driving signal to drive the fan according to the target revolution signal.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: January 16, 2007
    Assignee: Delta Electronics, Inc.
    Inventors: Chia-Feng Wu, Cheng-Chieh Liu, Ching-Sen Hsieh, Tsung-Jung Hsieh, Yueh-Lung Huang
  • Publication number: 20060263072
    Abstract: A fan control device receives a reference revolution signal to control the rotation speed of a fan. The fan control device includes a reference signal generating module, a revolution modifying module and a fan driving module. The reference signal generating module generates a first reference signal and a second reference signal. The revolution modifying module receives the first reference signal and the second reference signal, and generates a target revolution signal according to the reference revolution signal and the first and second reference signals. The fan driving module receives the target revolution signal and generates a driving signal to drive the fan according to the target revolution signal.
    Type: Application
    Filed: February 16, 2006
    Publication date: November 23, 2006
    Inventors: Chia-Feng Wu, Cheng-Chieh Liu, Ching-Sen Hsieh, Tsung-Jung Hsieh, Yueh-Lung Huang
  • Publication number: 20060214616
    Abstract: A heat dissipation device comprises a fan motor, a drive circuit, and a reset current reduction circuit. When the fan motor is locked, an input terminal of the reset current reduction circuit receives an alarm signal, and an output terminal thereof outputs a voltage signal, which is larger than a reference voltage generated as the fan motor is at a low rotation rate, so as to decrease a reset current of the fan motor.
    Type: Application
    Filed: March 9, 2006
    Publication date: September 28, 2006
    Inventors: Po-Hui Shen, Cheng-Chieh Liu, Ching-Sen Hsieh, Yueh-Lung Huang
  • Publication number: 20060156258
    Abstract: A method for automatically entering factory configuration mode. An input signal is received. Frequency of the input signal falling within a predetermined range is determined. When frequency of the input signal falls within a predetermined range, a factory mode OSD (on-screen display) is activated.
    Type: Application
    Filed: January 11, 2006
    Publication date: July 13, 2006
    Inventor: Cheng-Chieh Liu
  • Publication number: 20050268128
    Abstract: A heat dissipation device for cooling an electronic device. The heat dissipation device comprises a fan, a controller connected to the fan and coupled to the electronic device and a sensor connected to the controller and sending a first signal to the controller by detecting a temperature variation in the electronic device. The electronic device sends a second signal to the controller, the controller changes the speed of the fan according to either the first signal or the second signal.
    Type: Application
    Filed: August 23, 2004
    Publication date: December 1, 2005
    Inventors: Chia-Feng Wu, Cheng-Chieh Liu, Yueh Huang, Yi-Chieh Cho