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).
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Publication number: 20090195531Abstract: 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: ApplicationFiled: April 8, 2009Publication date: August 6, 2009Inventors: Chih-Sung Wang, Chih-Hsiang Yang, Chao-Liang Lu
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Patent number: 7564439Abstract: 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: GrantFiled: November 28, 2005Date of Patent: July 21, 2009Assignee: Au Optronics Corp.Inventors: Yao-Jen Hsieh, Huan-Hsin Li, Chih-Sung Wang, Huan-Lin Peng
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Publication number: 20090091527Abstract: 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: ApplicationFiled: November 29, 2007Publication date: April 9, 2009Applicant: AU OPTRONICS CORPORATIONInventors: Chun-Fan Chung, Sheng-Kai Hsu, Yung-Tse Cheng, Szu-Che Yeh, Li-Ru Lyu, Chih-Sung Wang
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Patent number: 7483006Abstract: 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: GrantFiled: January 14, 2005Date of Patent: January 27, 2009Assignee: AU Optronics Corp.Inventors: Chih-Sung Wang, Chih-Hsiang Yang, Chao-Liang Lu
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Publication number: 20090021460Abstract: 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: ApplicationFiled: September 17, 2008Publication date: January 22, 2009Applicant: AU OPTRONICS CORP.Inventors: Chih-Sung Wang, Chih-Hsiang Yang, Chao-Liang Lu
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Publication number: 20080283737Abstract: 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: ApplicationFiled: August 21, 2007Publication date: November 20, 2008Applicant: AU OPTRONICS CORPORATIONInventors: Te-Mei Wang, Yao-Jen Hsieh, Chih-Sung Wang
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Publication number: 20080062155Abstract: 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: ApplicationFiled: March 2, 2007Publication date: March 13, 2008Inventors: Chih-Sung Wang, Chih-Hsiang Yang, Pei-Chen Chan, Sheng-Kai Hsu
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Publication number: 20070080921Abstract: 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: ApplicationFiled: October 11, 2005Publication date: April 12, 2007Inventors: Chih-Sung Wang, Chih-Hsiang Yang, Yu-Min Hsu, Sheng-Kai Hsu
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Publication number: 20070013627Abstract: 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: ApplicationFiled: July 14, 2006Publication date: January 18, 2007Applicant: AU Optronics Corp.Inventors: Yao-Jen Hsieh, Huan-Hsin Li, Chih-Sung Wang
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Publication number: 20060226785Abstract: 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: ApplicationFiled: October 11, 2005Publication date: October 12, 2006Inventors: Yu-Chuan Lin, Hui-Kai Chou, Yi-Shiuan Tsai, Chih-Sung Wang
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Publication number: 20060181499Abstract: 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: ApplicationFiled: June 14, 2005Publication date: August 17, 2006Inventors: Huan-Hsin Li, Yao-Jen Hsieh, Chih-Sung Wang
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Publication number: 20060145992Abstract: 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: ApplicationFiled: November 28, 2005Publication date: July 6, 2006Inventors: Yao-Jen Hsieh, Huan-Hsin Li, Chih-Sung Wang, Huan-Lin Peng
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Publication number: 20060028415Abstract: 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: ApplicationFiled: January 4, 2005Publication date: February 9, 2006Inventors: Chih-Hsiang Yang, Chih-Sung Wang, Yao Jen Hsieh, Huan Hsin Li
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Publication number: 20060012550Abstract: 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: ApplicationFiled: January 14, 2005Publication date: January 19, 2006Inventors: Chih-Sung Wang, Chih-Hsiang Yang, Chao-Liang Lu
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Publication number: 20060012589Abstract: 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: ApplicationFiled: December 13, 2004Publication date: January 19, 2006Inventors: Yao Jen Hsieh, Chih-Sung Wang
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Patent number: 6844629Abstract: 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: GrantFiled: July 1, 2003Date of Patent: January 18, 2005Assignee: Au Optronics Corp.Inventors: Shan-Te Chen, Chih-Sung Wang, Chin-Chen Yang, Sheng-Lun Su, Ke-Feng Lin
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Publication number: 20040056331Abstract: 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: ApplicationFiled: July 1, 2003Publication date: March 25, 2004Applicant: AU Optronics Corp.Inventors: Shan-Te Chen, Chih-Sung Wang, Chin-Chen Yang, Sheng-Lun Su, Ke-Feng Lin