Patents Assigned to Au Optronics Corp.
  • Backlight control method for high dynamic range LCD
    Publication number: 20080180383
    Abstract: A cumulative function of image is obtained according to its gray levels of pixels. This function is then mapped to obtain a backlight modulation function according to a reference line. The backlight brightness provided for different regions of the liquid crystal display are decided by the backlight modulation function while displaying the images.
    Type: Application
    Filed: August 31, 2007
    Publication date: July 31, 2008
    Applicant: AU OPTRONICS CORP.
    Inventors: Fang-Cheng Lin, Cheng-Yu Liao, Lin-Yao Liao, Yi-Pai Huang, Te-Mei Wang, Han-Ping Shieh
  • Liquid crystal display panel and testing system and method thereof
    Publication number: 20080180592
    Abstract: A testing system of a liquid crystal display panel including a substrate, a driving circuit, a first testing pad, and a second testing pad is provided. The substrate includes a pixel array whose one side has a pixel testing area. The driving circuit is formed on the substrate and connected to the other side of the pixel testing area for providing a signal to the pixel array. The first testing pad is connected to the driving circuit. The second testing pad is connected to the pixel testing area. The testing method of the liquid crystal display panel includes: respectively testing whether the liquid crystal display panel and the pixel testing area have a defect and accordingly generating a first testing pattern and a second testing pattern; combining the first testing pattern and the second testing pattern to determine whether the defect occurs at the driving circuit or the pixel array.
    Type: Application
    Filed: December 27, 2007
    Publication date: July 31, 2008
    Applicant: AU OPTRONICS CORP.
    Inventors: Shan-Jen Yu, Chung-Chi Huang, Jing-Ru Chen
  • METHOD FOR FABRICATING A PIXEL STRUCTURE OF A LIQUID CRYSTAL DISPLAY
    Publication number: 20080182350
    Abstract: A method for fabricating a pixel structure of a liquid crystal device is provided. The method comprises providing a substrate defining a thin film transistor (TFT) region and a display region thereon. An opaque conductive layer is formed on the TFT region, and a transparent pixel electrode is formed on the display region. A patterned photoresist passivation layer is formed by backside exposure process on the TFT region, wherein the opaque conductive layer serves as the photo-mask during the backside exposure process. The photoresist passivation layer is subjected to a middle bake process to be reflowed, resulting in a complete covering of the opaque conductive layer.
    Type: Application
    Filed: December 27, 2007
    Publication date: July 31, 2008
    Applicant: AU OPTRONICS CORP.
    Inventor: Hsiang-Lin Lin
  • Method for alignment of liquid crystal molecules by using hydrogen ion beam in an amount greater than one hundred times that of non-hydrogen ions
    Patent number: 7405788
    Abstract: A method that uses at least one hydrogen ion beam for alignment of liquid crystal molecules is proposed in the present invention. The method of the present invention is proposed to resolve the problems of physical destruction and surface deterioration of the alignment films caused by the conventional method using argon ions beams. The method of the present invention directly uses at least one hydrogen ion beam to impact the alignment film. Hence, the physical destruction of the alignment film is reduced. In addition, via the reaction between hydrogen ions and the alignment films, the quality of the alignment film is improved.
    Type: Grant
    Filed: October 5, 2005
    Date of Patent: July 29, 2008
    Assignees: Taiwan TFT LCD Association, Chunghwa Picture Tubes, Ltd., Au Optronics Corp., Quanta Display Inc., Hannstar Display Corp., Chi Mei Optoelectronics Corp., Industrial Technology Research Institute, Toppoly Optoelectronics Corp.
    Inventors: Bang-Hao Wu, Ching-Wen Hsiao, Yu-Ming Chen, Hsin-Chun Chiang, Chung-Wen Wu
  • Pixel driving circuit and pixel driving method
    Patent number: 7405714
    Abstract: A pixel driving circuit for use in an Active Matrix Organic Light Emission Display (AMOLED). A pixel driving method for use in the AMOLED. The pixel driving circuit comprises a current source, a driving pump, and a discharge circuit. A fixed current is provided by the current source. The driving pump coupled to the current source and a Light Emitting Diode (LED), charges a cell to saturation by the fixed current, such that the potential of the cell drives the LED lighting. The discharge circuit, coupled to the driving pump and a data line, controls the cell discharge based on a data signal on the data line. The discharge circuit controls the cell discharge speed, whereby the LED lighting time and luminance is adjusted.
    Type: Grant
    Filed: April 18, 2005
    Date of Patent: July 29, 2008
    Assignee: AU Optronics Corp.
    Inventor: Li-Wei Shih
  • Pixel structure
    Patent number: 7405429
    Abstract: A method of fabricating a thin film transistor is disclosed. First, a substrate is provided and a patterned polysilicon layer is formed on the substrate. A metal layer is formed on the patterned polysilicon layer. Then, a portion of the metal layer is removed so that the remaining metal layer beside the patterned polysilicon layer forms a source and a drain. A gate insulation layer is formed on the substrate to cover the source, the drain and the patterned polysilicon layer. A gate is formed on the gate insulation layer over the patterned polysilicon layer.
    Type: Grant
    Filed: August 11, 2006
    Date of Patent: July 29, 2008
    Assignee: AU Optronics Corp. (AUO)
    Inventor: Chin-Kuo Ting
  • Pixel Structure and Method for Generating Drive Voltages in the Same
    Publication number: 20080174537
    Abstract: A pixel structure and a method for generating drive voltages in the pixel structure are disclosed. The pixel structure comprises a first sub-pixel electrode, a first com-line, and a second com-line. The first sub-pixel electrode is applied with a first drive voltage. The first com-line transmits a first com-voltage signal. The second com-line transmits a second com-voltage signal. The first drive voltage is derived by combining the first com-voltage signal and the second com-voltage signal.
    Type: Application
    Filed: May 15, 2007
    Publication date: July 24, 2008
    Applicant: AU OPTRONICS CORP.
    Inventors: Ting-Wei Su, Jenn-Jia Su
  • Optical microelectromechanical device
    Patent number: 7403321
    Abstract: An optical microelectromechanical systems (MEMS) device includes a transparent substrate with a plurality of discrete conductive lines, an dielectric layer disposed on the substrate and the conductive lines, reflective members and edge supporters. The reflective members and conductive lines are orthogonal, defining a plurality of pixel areas. Each reflective member is supported by edge supporters arranged around each pixel area and over the dielectric layer by a predetermined gap. The reflective members cover the connecting end of each edge supporter, providing protection from damage during fabrication.
    Type: Grant
    Filed: May 19, 2005
    Date of Patent: July 22, 2008
    Assignee: AU Optronics Corp.
    Inventors: Chia-Sheng Lee, Han-Tu Lin, Jia-Fam Wong
  • Apparatus and method for cleaning a glass substrate before photoresist coating
    Patent number: 7402212
    Abstract: A method for cleaning a glass substrate before photoresist coating, which method can remove oxide compounds and organic residues from the surface of a metal layer of the glass substrate, comprises the steps of firstly providing an alkaline developer in a concentration of between 0.35% and 0.45%; later immersing the metal film of the glass substrate in the alkaline developer; then rinsing the metal film of the glass substrate after immersed with clean water; and lastly having the surface of the metal film of the glass substrate in a dry treatment.
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: July 22, 2008
    Assignee: Au Optronics Corp.
    Inventors: Wei-Ting Chen, Man-Hung Wu, Hung-Yi Cheng
  • LIQUID CRYSTAL DISPLAY PANEL AND ELECTRONIC APPARATUS UTILIZING THE SAME
    Publication number: 20080170188
    Abstract: Disclosed is a liquid crystal display panel having one or more light holes in the reflection region for improving the aperture ratio and color uniformity at different view angles. The light holes are formed at the reflection region having an alignment protrusion as a center. The light holes are substantially arranged around the alignment protrusion with substantially identical total area, or at least one light hole formed at the reflection region having the alignment protrusion in the light hole as a center.
    Type: Application
    Filed: August 13, 2007
    Publication date: July 17, 2008
    Applicant: AU OPTRONICS CORP.
    Inventors: Shih-Chyuan Fan Jiang, Ching-Huan Lin, Chih-Ming Chang
  • DATA LINE REPAIR MECHANISM AND METHOD FOR A DISPLAY
    Publication number: 20080172570
    Abstract: A data line repair mechanism for a display including a data driver, a plurality of data lines, at least one rescue line is disclosed, wherein each data line includes a second end and a first end coupled to the data driver, the rescue line is coupled to the data driver, and when a first data line fails, the rescue line is coupled to the second end of the first data line via a single one weld point. The mechanism includes an address storage unit storing the addresses of the first data line and rescue line, and a data processor receiving an input data to output an output data to the data driver, wherein the input data includes a first display data corresponding to the first data line, and the first display data is transmitted to the rescue line based on the addresses of the first data line and rescue line.
    Type: Application
    Filed: November 20, 2007
    Publication date: July 17, 2008
    Applicant: AU OPTRONICS CORP.
    Inventors: Chih-Che Hsu, Hung-Min Shih
  • Transition film of flat panel display and a method using the same
    Patent number: 7399562
    Abstract: A flat panel display comprising a liquid crystal module, a backlight module, and a transition film is disclosed. The backlight module provides light to the liquid crystal module, and the transition film is disposed above the liquid crystal module. The transition film comprises a material capable of filtering light of specific wavelengths. The material can be organic dye material phthal-ocyanine Copper (CuPc) or C32H16N8Cu. The transition film can be an evaporation layer, so the transition film can be formed on the polarizer of the liquid crystal module. The transition film has a transparency ratio with respect to blue light and a transparency ratio with respect to red light, and the ratios range from 0.5 to 0.95. The transparency ratio with respect to blue light is greater than that with respect to red light. The backlight module comprises one or more light emitting diodes (LEDs) to provide light.
    Type: Grant
    Filed: June 1, 2005
    Date of Patent: July 15, 2008
    Assignee: AU Optronics Corp.
    Inventors: Wen-Ping Yang, Wen-Kuen Chen, Cheng-Wei Li
  • Common voltage adjustment circuit and liquid crystal display panel utilizing the same
    Patent number: 7400312
    Abstract: A common voltage adjustment circuit. The common voltage adjustment circuit is applied in a liquid crystal display panel having a plurality of display units, coupled to a common electrode. The common voltage adjustment circuit has a first register, a second register, a first digital-to-analog converter, a second digital-to-analog converter, and a regulator. The common voltage adjustment circuit adjusts AC voltage and DC voltage of the common voltage and provides the adjusted common voltage to the common electrode.
    Type: Grant
    Filed: August 17, 2004
    Date of Patent: July 15, 2008
    Assignee: AU Optronics Corp.
    Inventors: Chi-Mao Hung, Po-Cheng Shih
  • Liquid crystal displays with liquid crystal molecules and polymers in which the polymers adhere to the substrates and capsulate the molecules
    Patent number: 7400368
    Abstract: Liquid crystal displays and fabrication methods thereof. The liquid crystal display comprises a first substrate with an active matrix of a plurality of pixels. A second substrate is provided opposing the first substrate. A liquid crystal layer is interposed between the first substrate and the second substrate. Each pixel comprises a polymer dispersed liquid crystal layer corresponding to a first liquid crystal region and a non-polymer dispersed liquid crystal layer corresponding to a second liquid crystal region.
    Type: Grant
    Filed: October 4, 2005
    Date of Patent: July 15, 2008
    Assignee: Au Optronics Corp.
    Inventors: Yi-Ju Chen, Chia-Yu Lee, Chieh-Ting Chen, Po-Lun Chen
  • Pixels, display devices utilizing same, and pixel driving methods
    Patent number: 7400309
    Abstract: A pixel including a light-emitting element, a driving transistor, a maintain capacitor, a switch device, and a control device. The driving transistor is serially coupled to the light-emitting element for driving the light-emitting element to emit light and has a threshold voltage and a gate connected to a point. A first terminal of the maintain capacitor is connected to the point. The switch device is controlled by a scan signal and connected between a data line and the point. The control device is connected to a second terminal of the maintain capacitor. When the switch device is turned off, the control device provides a first control voltage, the value of which is determined by the threshold voltage, to the point through the maintain capacitor.
    Type: Grant
    Filed: November 19, 2004
    Date of Patent: July 15, 2008
    Assignee: Au Optronics Corp.
    Inventor: Kuan-Long Wu
  • Method of detecting array of liquid crystal display and apparatus thereof
    Patent number: 7399965
    Abstract: A detection apparatus for detecting a defect in an array of a liquid crystal display, comprises a main chamber, a stage, a detection device and a main heater. The stage is disposed in the main chamber, and the array is placed on stage. The detection device is disposed in the main chamber and detects an electrical characteristic of the array. The main heater heats the array to a first temperature to reveal the defect of the array.
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: July 15, 2008
    Assignee: Au Optronics Corp.
    Inventors: Ting-Hui Huang, Kuo-Kuei Lee, Chih-Chiang Chen, Feng-Lung Chang
  • Shift register circuit
    Patent number: 7400698
    Abstract: A shift register circuit including a first shift register unit, a second shift register unit, a third shift register unit, and a fourth shift register unit connected in serial. The second shift register unit includes an output terminal, and a pull down system pulling the voltage of the output terminal of the second shift register unit according to a pull down signal. The fourth shift register unit includes a third switch and a fourth switch. The fourth switch has a control terminal electrically coupled to the second terminal of the third switch and the pull down unit. The fourth shift register unit generates the pull down signal according to the voltage level of the connecting point between the third switch and the fourth switch.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: July 15, 2008
    Assignee: Au Optronics Corp.
    Inventors: Lee-Hsun Chang, Yu-Wen Lin
  • Driving method for dual panel display
    Patent number: 7400306
    Abstract: A flat panel display device for dual-panel display that comprises an array of pixels formed in rows and columns, a first sub-array of the array of pixels for image display in a first direction, a second sub-array of the array of pixels for image display in a second direction, at least one scan driver for sequentially scanning the array of pixels row by row, and a plurality of multiplexers, connectable to receive a control signal having a first state and a second state, for connecting the first sub-array of pixels to the at least one scan driver in response to the first state of the control signal, and connecting the second sub-array of pixels to the at least one scan driver in response to the second state of the control signal.
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: July 15, 2008
    Assignee: AU Optronics Corp.
    Inventor: Shuo-Hsiu Hu
  • DRIVING ARCHITECTURE OF LIQUID CRYSTAL DISPLAY
    Publication number: 20080165098
    Abstract: A driving circuit architecture of a liquid crystal display (LCD) is described. The driving circuit comprises a control circuit, a gate driving module and a data driving module. The control circuit generates a gate control signal and a data control signal. The gate driving circuit electrically coupled to the control circuit generates scanning signal according to the gate control signals. The data driving module electrically coupled to the control circuit is used to generate data driving signal according to data control signal. The data driving module comprises a plurality of different type of driving circuits.
    Type: Application
    Filed: June 25, 2007
    Publication date: July 10, 2008
    Applicant: AU Optronics Corp.
    Inventors: Chih-hsiang Yang, Sheng-kai Hsu
  • Cleaning apparatus for pillared devices
    Patent number: 7395824
    Abstract: A cleaning apparatus for pillared device comprises an outer tank, an inner tank, a lid and a plurality of nozzles. Upper edges of opposing sidewalls of the outer tank include respective openings to support a shaft extending out from two ends of the pillared device. The inner tank within the outer tank for containing a first cleaning solution to dip a portion of the pillared device is constructed above the floor of the outer tank. The lid is rested on the top of the outer tank. The nozzles constructed along a pipeline inside the lid is used to spay a second cleaning solution onto the pillared device mounted in the inner tank.
    Type: Grant
    Filed: November 28, 2003
    Date of Patent: July 8, 2008
    Assignee: AU Optronics Corp.
    Inventors: Tien-Kuei Wen, Bin-Lin Chang