Patents by Inventor Chih-Sung Wang

Chih-Sung Wang 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: 20090195531
    Abstract: A liquid crystal display and the driving method thereof. The LCD includes a timing controller, a plurality of driver chips and a display panel. The driver chips are cascaded together for driving the display panel to display frames. A driver chip includes a differential receiver, a single-ended receiver, a shift register, a differential transmitter, a single-ended transmitter and a pixel driver. The driver chip receives a pixel signal and drives the display panel according to the pixel signal, and outputs the pixel signal to the next driver chip.
    Type: Application
    Filed: April 8, 2009
    Publication date: August 6, 2009
    Inventors: Chih-Sung Wang, Chih-Hsiang Yang, Chao-Liang Lu
  • Patent number: 7564439
    Abstract: A LCD (Liquid Crystal Display) with improved motion image quality and a driving method therefor. The LCD includes a pixel, a data driving circuit and a scan driving circuit. The data driving circuit generates over driving pixel data and gray pixel data according to pixel data of a Nth frame and pixel data of a (N+1)th frame, and outputs driving voltages, which correspond to the over driving pixel data, black pixel data and the gray pixel data, to the pixel at first, second and third time. The scan driving circuit outputs a scan signal at the first time, second time and third time to enable the pixel to receive the driving voltages corresponding to the over driving pixel data, the black pixel data and the gray pixel data. The driving voltages enables the pixel to generate a brightness curve similar to a pulse curve.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: July 21, 2009
    Assignee: Au Optronics Corp.
    Inventors: Yao-Jen Hsieh, Huan-Hsin Li, Chih-Sung Wang, Huan-Lin Peng
  • Publication number: 20090091527
    Abstract: 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: Application
    Filed: November 29, 2007
    Publication date: April 9, 2009
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Chun-Fan Chung, Sheng-Kai Hsu, Yung-Tse Cheng, Szu-Che Yeh, Li-Ru Lyu, Chih-Sung Wang
  • Patent number: 7483006
    Abstract: A liquid crystal display and the driving method thereof. The LCD includes a timing controller, a plurality of driver chips and a display panel. The driver chips are cascaded together for driving the display panel to display frames. A driver chip includes a differential receiver, a single-ended receiver, a shift register, a differential transmitter, a single-ended transmitter and a pixel driver. The driver chip receives a pixel signal and drives the display panel according to the pixel signal, and outputs the pixel signal to the next driver chip.
    Type: Grant
    Filed: January 14, 2005
    Date of Patent: January 27, 2009
    Assignee: AU Optronics Corp.
    Inventors: Chih-Sung Wang, Chih-Hsiang Yang, Chao-Liang Lu
  • Publication number: 20090021460
    Abstract: A liquid crystal display and the driving method thereof. The LCD includes a timing controller, a plurality of driver chips and a display panel. The driver chips are cascaded together for driving the display panel to display frames. A driver chip includes a differential receiver, a single-ended receiver, a shift register, a differential transmitter, a single-ended transmitter and a pixel driver. The driver chip receives a pixel signal and drives the display panel according to the pixel signal, and outputs the pixel signal to the next driver chip.
    Type: Application
    Filed: September 17, 2008
    Publication date: January 22, 2009
    Applicant: AU OPTRONICS CORP.
    Inventors: Chih-Sung Wang, Chih-Hsiang Yang, Chao-Liang Lu
  • Publication number: 20080283737
    Abstract: A backlight module having a plurality of light emitting blocks is provided. The backlight module includes a plurality of light emitting devices and a plurality of photo-sensors. The light emitting devices are disposed in the light emitting blocks. Herein, the light emitting devices disposed in the same lighting block can be turned on simultaneously. Further, the photo-sensors are disposed among the light emitting blocks. Herein, the photo-sensors are capable of detecting the luminous intensity of the neighboring light emitting blocks. The photo-sensors of the above-mentioned backlight module can accurately detect the luminous intensity of each light emitting block. A calibration method of the backlight module is also provided.
    Type: Application
    Filed: August 21, 2007
    Publication date: November 20, 2008
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Te-Mei Wang, Yao-Jen Hsieh, Chih-Sung Wang
  • Publication number: 20080062155
    Abstract: A display device capable of adjusting slew rate includes a display panel, a driving circuit, a storage unit, and a compensating circuit. The display panel includes a plurality of signal lines for signal transmission. The driving circuit is coupled to the display panel for generating driving signals to a signal line of the display panel based on a control signal and a corresponding compensating signal. Data related to each signal line and its corresponding compensating signal is stored in the storage unit. The compensating circuit, coupled to the storage unit and the driving circuit, receives the compensating signal from the storage unit and sends the compensating signal to the driving circuit.
    Type: Application
    Filed: March 2, 2007
    Publication date: March 13, 2008
    Inventors: Chih-Sung Wang, Chih-Hsiang Yang, Pei-Chen Chan, Sheng-Kai Hsu
  • Publication number: 20070080921
    Abstract: 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: Application
    Filed: October 11, 2005
    Publication date: April 12, 2007
    Inventors: Chih-Sung Wang, Chih-Hsiang Yang, Yu-Min Hsu, Sheng-Kai Hsu
  • Publication number: 20070013627
    Abstract: A system for driving a liquid crystal display is provided. The system receives a video signal including a first predetermined gray level signal and a second predetermined gray level signal. The system includes a memory, an impulse signal module, a first multiplexer and a detection unit. The memory stores the first predetermined gray level signal. The impulse signal module receives the first and second predetermined gray level signal to generate a plurality of impulse signals. The first multiplexer receives the plurality of impulse signals and outputs the second predetermined gray level signal or the plurality of impulse signals according to the first control signal. The detection unit generates a first control signal to be applied to the first multiplexer according to the first predetermined gray level signal and the second predetermined gray level signal.
    Type: Application
    Filed: July 14, 2006
    Publication date: January 18, 2007
    Applicant: AU Optronics Corp.
    Inventors: Yao-Jen Hsieh, Huan-Hsin Li, Chih-Sung Wang
  • Publication number: 20060226785
    Abstract: Backlight assemblies for large flat panel displays are provided. A backlight assembly comprises a back plate, a plurality of first and second lamps, a first connector module and an optical assembly. The first and second lamps are parallel to an axis, disposed in a first position and a second position of the axis, respectively. The first connector module is disposed on the back plate, comprising a plurality of conductive blocks. Each conductive block comprises an insulator, a first conductive member and a second conductive member disposed on opposite sides of the insulation body. A protrusion is formed in the middle of the insulator to support the optical assembly. The first and second conductive members both have depressions to receive and electrically connect the first and second lamps.
    Type: Application
    Filed: October 11, 2005
    Publication date: October 12, 2006
    Inventors: Yu-Chuan Lin, Hui-Kai Chou, Yi-Shiuan Tsai, Chih-Sung Wang
  • Publication number: 20060181499
    Abstract: A scan method for use in a flat panel display comprising K groups of lines, comprising the following steps. First, K sequences S1 to SK are provided. A scan order is then determined according to the K sequences S1 to SK. Thereafter, the K groups of lines are synchronously scanned by the scan order. K is an integer not less than 2. Each group of lines comprises at least M lines.
    Type: Application
    Filed: June 14, 2005
    Publication date: August 17, 2006
    Inventors: Huan-Hsin Li, Yao-Jen Hsieh, Chih-Sung Wang
  • Publication number: 20060145992
    Abstract: A LCD (Liquid Crystal Display) with improved motion image quality and a driving method therefor. The LCD includes a pixel, a data driving circuit and a scan driving circuit. The data driving circuit generates over driving pixel data and gray pixel data according to pixel data of a Nth frame and pixel data of a (N+1)th frame, and outputs driving voltages, which correspond to the over driving pixel data, black pixel data and the gray pixel data, to the pixel at first, second and third time. The scan driving circuit outputs a scan signal at the first time, second time and third time to enable the pixel to receive the driving voltages corresponding to the over driving pixel data, the black pixel data and the gray pixel data. The driving voltages enables the pixel to generate a brightness curve similar to a pulse curve.
    Type: Application
    Filed: November 28, 2005
    Publication date: July 6, 2006
    Inventors: Yao-Jen Hsieh, Huan-Hsin Li, Chih-Sung Wang, Huan-Lin Peng
  • Publication number: 20060028415
    Abstract: A method for driving a liquid crystal display (LCD) includes receiving image data of each display unit of the LCD in every display period to determine gray levels of the display units, controlling a gate driver of the LCD to scan each of the display units at least twice every display period, controlling a source driver of the LCD to generate a switch signal, controlling the source driver to determine the gray levels of one row of the display units when the switch signal is at a first voltage level, and controlling the source driver to drive one row of the display units to a predetermined gray level status when the switch signal is at a second voltage level.
    Type: Application
    Filed: January 4, 2005
    Publication date: February 9, 2006
    Inventors: Chih-Hsiang Yang, Chih-Sung Wang, Yao Jen Hsieh, Huan Hsin Li
  • Publication number: 20060012550
    Abstract: A liquid crystal display and the driving method thereof. The LCD includes a timing controller, a plurality of driver chips and a display panel. The driver chips are cascaded together for driving the display panel to display frames. A driver chip includes a differential receiver, a single-ended receiver, a shift register, a differential transmitter, a single-ended transmitter and a pixel driver. The driver chip receives a pixel signal and drives the display panel according to the pixel signal, and outputs the pixel signal to the next driver chip.
    Type: Application
    Filed: January 14, 2005
    Publication date: January 19, 2006
    Inventors: Chih-Sung Wang, Chih-Hsiang Yang, Chao-Liang Lu
  • Publication number: 20060012589
    Abstract: A method of multiple-frame scanns for a display includes generating K line-triggering signals within a period in which one frame is finished completed scanning from a first line to a last line, generating K clocks of different phases for triggering K input data, and displaying K input data on the display according to the K line-triggering signals and the K clocks of different phases.
    Type: Application
    Filed: December 13, 2004
    Publication date: January 19, 2006
    Inventors: Yao Jen Hsieh, Chih-Sung Wang
  • Patent number: 6844629
    Abstract: A display panel comprises the following elements. A pixel array arranged by a plurality of pixel devices is applied for producing images according to input signals. A plurality of COG chips are fabricated on a peripheral region of the display panel and connected in series wherein the COG chips can convey the input signals to the pixel array for driving selected the pixel devices. A plurality of WOA lines are defined on the display panel for connecting the COG chips in series to transfer the input signals. And a first bypassing bus is fabricated aside the COG chips and connected separately to two different WOA lines for connecting with at least one the COG chip in parallel so as to bypass the input signals.
    Type: Grant
    Filed: July 1, 2003
    Date of Patent: January 18, 2005
    Assignee: Au Optronics Corp.
    Inventors: Shan-Te Chen, Chih-Sung Wang, Chin-Chen Yang, Sheng-Lun Su, Ke-Feng Lin
  • Publication number: 20040056331
    Abstract: A display panel comprises the following elements. A pixel array arranged by a plurality of pixel devices is applied for producing images according to input signals. A plurality of COG chips are fabricated on a peripheral region of the display panel and connected in series wherein the COG chips can convey the input signals to the pixel array for driving selected the pixel devices. A plurality of WOA lines are defined on the display panel for connecting the COG chips in series to transfer the input signals. And a first bypassing bus is fabricated aside the COG chips and connected separately to two different WOA lines for connecting with at least one the COG chip in parallel so as to bypass the input signals.
    Type: Application
    Filed: July 1, 2003
    Publication date: March 25, 2004
    Applicant: AU Optronics Corp.
    Inventors: Shan-Te Chen, Chih-Sung Wang, Chin-Chen Yang, Sheng-Lun Su, Ke-Feng Lin