Patents by Inventor Chun-Chieh Yu

Chun-Chieh Yu 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: 20140327373
    Abstract: An LED drive device includes: a drive module generating, based on a control signal, a drive current that flows through an LED-based load, and generating, based on the drive current, a sampling current associated with the drive current; a voltage detection module detecting a voltage across the LED-based load, and generating an adjustment signal based on the detection result and on a predetermined reference voltage; and a control signal generation module generating the control signal based on the adjustment signal, the sampling current and the predetermined reference voltage.
    Type: Application
    Filed: May 5, 2014
    Publication date: November 6, 2014
    Applicant: ILI TECHNOLOGY CORPORATION
    Inventors: Wen-Kuen LIU, Chun-Chieh YU
  • Patent number: 8581822
    Abstract: A method for driving a liquid crystal display device provides sufficient charge time for a pixel unit by adjusting a main-charge time and a precharge time of the pixel unit according to the polarities of data driving signals applied during a main-charge period and a precharge period. Meanwhile, the method controls a write period during which a data driving signal is written into a pixel unit, so that each pixel unit can be equally charged.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: November 12, 2013
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Hui-Ping Chuang, Yi-Jui Huang, Tsan-Ming Hsieh, Chun-Chieh Yu
  • Publication number: 20110221729
    Abstract: A method for driving a liquid crystal display device provides sufficient charge time for a pixel unit by adjusting a main-charge time and a precharge time of the pixel unit according to the polarities of data driving signals applied during a main-charge period and a precharge period. Meanwhile, the method controls a write period during which a data driving signal is written into a pixel unit, so that each pixel unit can be equally charged.
    Type: Application
    Filed: June 28, 2010
    Publication date: September 15, 2011
    Inventors: Hui-Ping Chuang, Yi-Jui Huang, Tsan-Ming Hsieh, Chun-Chieh Yu
  • Publication number: 20110209893
    Abstract: A cable structure includes a conductor, a shielding layer wrapped the conductor, a knit layer surrounding the shielding layer, and an insulating layer bound round the knit layer. The knit layer is interlaced by multiple knitting wires. Each of the knitting wires has a plurality of metallic wires which are arranged side by side to form a metallic strip, and at least one fiber filament arranged at an outer side of the metallic strip. The abreast knitting wires are arranged by means of each two adjacent metallic strips sandwiching at least one fiber filament therebetween.
    Type: Application
    Filed: February 26, 2010
    Publication date: September 1, 2011
    Inventors: Chun-Chieh Yu, Ming-Xing Jiang
  • Publication number: 20110102384
    Abstract: A driver chip is suitable to be mounted on an active device array substrate of a display. The active device array substrate includes a plurality of signal lines. The driver chip includes a chip body, a plurality of output terminals, and a plurality of load adjusting units. The output terminals are used for electrically connecting some of the signal lines, and the load adjusting units are electrically connected between the output terminals and the chip body. The chip body is electrically connected to the plurality of signal lines through the output terminals and the load adjusting units. The load adjusting units are used for enabling loads between the chip body and the signal lines electrically connected to the chip body to be consistent.
    Type: Application
    Filed: February 2, 2010
    Publication date: May 5, 2011
    Applicant: CHUNGHW A PICTURE TUBES, LTD.
    Inventors: YI-JUI HUANG, Chun-Chieh Yu
  • Publication number: 20110050554
    Abstract: A display device includes a panel, a receiving interface, a timing control module, a backlight module and a backlight driving unit. The receiving interface receives a first data signal and a first backlight control signal with a first timing. The timing control module converts the first data signal into a second data signal and then outputs the second data signal to the panel. Furthermore, based on the second data signal, the timing control module converts the first backlight control signal into a second backlight control signal with a second timing different from the first timing and then outputs the second backlight control signal. After receiving the second backlight control signal from the timing control module, the backlight driving unit is controlled by the second backlight control signal to output an output voltage signal to the backlight module.
    Type: Application
    Filed: October 12, 2009
    Publication date: March 3, 2011
    Inventors: Chun-Chieh Yu, Yi-Chiang Lai
  • Publication number: 20090231259
    Abstract: An apparatus and a method for eliminating an image sticking of a liquid crystal display (LCD) are provided. The image sticking occurs when the LCD is turned off. The LCD includes a data driver and a number of pixels coupled to a common voltage. The apparatus includes a voltage detector and a voltage switching device. The voltage detector detects a system voltage of the LCD and outputs a control signal according to the system voltage. The voltage switching device is coupled to the voltage detector for selectively providing a data voltage or the common voltage as a driving voltage of the data driver according to the control signal. The voltage switching device is controlled by the control signal to provide the common voltage to the data driver when the system voltage is less than a reference voltage.
    Type: Application
    Filed: February 4, 2009
    Publication date: September 17, 2009
    Applicant: CHUNGHWA PICTURE TUBES, LTD.
    Inventors: Chun-Chieh Yu, Shin-Chung Huang, I-Cheng Chen
  • Publication number: 20090026304
    Abstract: A winding machine includes a frame with a main axis fixed on. A winding tray is engaged on the main axis and defines long slots. Winding spindles pass through the long slots respectively and stretch forward. An unloading mechanism includes a basic tray and a sub-tray mounted on the main axis. The basic tray defines through-holes and guiding holes. The unloading mechanism further includes unloading units, and each unloading unit has a panel member pivotally connected to the basic tray. The panel member defines an arc track and integrates with a connecting member connected to the basic tray by helical springs and engaging with the winding spindle. A sliding pillar slidably located in the front of the basic tray projects forward to form a supporting element configuring a first idler wheel. A pushing block is moveably received in the through-hole. A front end thereof protrudes out of the through-hole and defines an inclined guide surface and a back end extends to be fixed on the sub-tray.
    Type: Application
    Filed: July 23, 2007
    Publication date: January 29, 2009
    Inventors: Chun-Chieh Yu, Yan Zhang, Ming Huang, Zhong-Bin Chen
  • Publication number: 20080245916
    Abstract: An automatic winder comprises a winding apparatus having a motor and a movable disc, an unloading apparatus and a rotating shaft. The unloading apparatus has a driven device and a plurality of unloading devices. The driven device comprises cylinders, driven blocks and a driven disc. An unloading device comprises at least a driven block, a sliding pole, a sliding base and a runner. One end of the sliding pole connects with the driven block. A plurality of first elastomers joins one end of the sliding pole and a base. A plurality of second elastomer connects the base and the runner. The sliding base having an apogee and a bottom. A sliding portion projecting sideward from the sliding pole connects with and moves along the sliding base.
    Type: Application
    Filed: April 5, 2007
    Publication date: October 9, 2008
    Applicant: CHENG UEI PRECISION INDUSTRY CO., LTD.
    Inventors: Chun-Chieh Yu, Yan Zhang, Ming Huang, Zhong-Bin Chen