Patents Assigned to Au Optronics Corp.
  • Patent number: 9576517
    Abstract: A shift register includes a plurality of shift register circuits. Each of the shift register circuits includes a first switch, an input circuit, a pull-down circuit and a ripple reduction circuit. The first switch is used to output a scanning signal of the shift register circuit according to voltage levels of a node and a clock signal. The input circuit is used to pull up the voltage level of the node according to a scanning signal of a previous shift register circuit. The pull-down circuit is used to pull down the voltage levels of the node and the scanning signal of the shift register circuit according to a scanning signal of a following shift register circuit. The ripple reduction circuit is used to suppress ripples on the voltage levels of the node and the scanning signal caused by the coupling effect of the clock signal.
    Type: Grant
    Filed: December 27, 2014
    Date of Patent: February 21, 2017
    Assignee: AU OPTRONICS CORP.
    Inventors: Wei-Chu Hsu, Man-Wen Shih, Ya-Ling Chen, Chien-Ya Lee
  • Patent number: 9576515
    Abstract: A bright dot detection method adapted to be used in a display panel including a plurality of gate lines, a plurality of source lines and a bright dot detection module. The plurality of gate lines and the plurality of sources line are interlaced thereby forming a plurality of pixels. The bright dot detection method includes: driving the plurality of pixels through enabling the plurality of gate lines simultaneously, thereby forming a first bright line in a first direction; and driving the plurality of pixels through enabling the plurality of gate lines sequentially and providing a control signal to the bright dot detection module, thereby forming a second bright line in a second direction, wherein a bright dot is positioned where the first and second bright lines meet with each other. A display panel is also disclosed.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: February 21, 2017
    Assignee: AU OPTRONICS CORP.
    Inventor: Kun-Feng Tsou
  • Patent number: 9564098
    Abstract: A display panel, a gate driver and a control method are disclosed herein. The gate driver includes series-coupled driving stages. One of the driving stages includes an input unit and a shift register circuit. The input unit outputs a shift signal to a control node according to a gate driving signal from the previous driving stage and the gate driving signal from the next driving stage. The shift register circuit is electrically coupled to the control node, and outputs the gate driving signal. During the enabling period of the gate driving signal from the previous driving stage and the enabling period of the gate driving signal from the current driving stage, the shift register circuit keeps the voltage level of the control node being at a first voltage.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: February 7, 2017
    Assignee: AU OPTRONICS CORP.
    Inventors: Wei-Chien Liao, Ming-Hung Chuang
  • Patent number: 9564889
    Abstract: A gate driving circuit includes plural-stage output circuits, an Nth stage output circuit of the plural-stage output circuits includes an Nth stage shift register and a mixer. The Nth stage shift register is configured to output an Nth pulse signal. The mixer is coupled to the Nth stage shift register and an (N+M)th stage shift register, for respectively outputting a first clock signal and a predetermined pulse signal during different periods according to the Nth pulse signal and an (N+M)th pulse signal of the (N+M)th stage shift register. Wherein pulse widths or phases of the first clock signal and the predetermined pulse signal are different, and N and M are positive integers.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: February 7, 2017
    Assignee: AU OPTRONICS CORP.
    Inventors: Chen-Chi Lin, Chun-Hsin Liu
  • Patent number: 9557847
    Abstract: A touch panel includes a substrate, a sensing array, a plurality of first connection lines and at least two button sensing pads. The substrate has an active region and a peripheral region disposed on at least one side of the active region. The sensing array is disposed in the active region, which includes a plurality of first sensing electrode series disposed in the active region along a first direction and a plurality of second sensing electrode series disposed in the active region along a second direction. The first and second sensing electrode series intersect and form a plurality of sensing units. The first connection lines are disposed in the peripheral region and electrically connected to the first sensing electrode series respectively. The at least two button sensing pads are disposed in the peripheral region, and electrically connected to at least two first connection lines respectively to form a virtual button.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: January 31, 2017
    Assignee: AU OPTRONICS CORP.
    Inventors: Chien-Yu Chen, Wen-Chi Chuang, Yi-Chi Chen, Ching-Chien Yuan
  • Patent number: 9558698
    Abstract: A driving method for driving a display apparatus including a plurality of pixels, a plurality of data lines and a data driver. The data driver includes a first latch outputting a first sample data signal to a second latch, the second latch, a first charge sharing line and a second charge sharing line. The method includes performing a first charge sharing when a polarity of one of the pixels changes so as to output a first calibrated data signal to the data line electrically coupled to the pixel, and executing a second charge sharing when the most significant bit of the first sample data signal is different from the most significant bit of the second sample data signal so as to output a second adjusted data signal to the data line.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: January 31, 2017
    Assignee: AU OPTRONICS CORP.
    Inventors: Wei-Jyun Chen, Chun-Fan Chung, Szu-Che Yeh
  • Patent number: 9558391
    Abstract: An identification recognition device includes a light emission module, a light sensing module, a pulse scanning unit, a fingerprint scanning unit and a controller. The light sensing module is used to generate first light currents and second light currents according to first reflecting light and second reflecting light. The pulse scanning unit is used to generate data of current variance of the object and the fingerprint scanning unit is used to generate features of fingerprint of the object. The controller is used to control the light emission module to emit the first incident light and to emit the second incident light when the object has a pulse according to the data of current variance of the object, and determine if the object passes the identification recognition test according to the features of fingerprint of the object.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: January 31, 2017
    Assignee: AU OPTRONICS CORP.
    Inventors: Chih-Lun Cheng, Yu-Jung Liu
  • Patent number: 9554434
    Abstract: A light-emitting diode driver includes a power switch, a logic unit and a pulse adjustment signal generator. The power switch is used to control a charging level of a light-emitting diode voltage terminal, and controlled to be turned on or off by a pulse-width modulation signal. The logic unit is coupled to a control terminal of the power switch, and used to generate a frequency control signal. The pulse adjustment signal generator is coupled to the logic unit, and used to generate an operational wave according to the frequency control signal and update the pulse-width modulation signal according to the operational wave. When the duty cycle of the pulse-width modulation signal is smaller than a pulse-width modulation threshold, the operational wave has a first frequency. When the duty cycle of the pulse-width modulation signal is larger than the pulse-width modulation threshold, the operational wave has a second frequency higher than the first frequency.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: January 24, 2017
    Assignee: AU OPTRONICS CORP.
    Inventors: Kuan-Cheng Chen, Yung-Hsu Lin
  • Patent number: 9547398
    Abstract: A substrate with touch function includes a plurality of scan lines and at least a touch device disposed thereon. The touch device includes at least a power line, at least a readout line, a light sensing circuit and a voltage divider circuit. The power line and the readout line are disposed on the substrate. The light sensing circuit is electrically coupled to a (N+1)th of the power lines, an Nth of the scan lines and an Nth of the readout lines, wherein N is an integer. The voltage divider circuit has an output terminal and is configured to output a first voltage to the light sensing circuit through the output terminal thereof according to a degree of illumination thereon or a degree of capacitance change. A display using the aforementioned substrate is also provided.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: January 17, 2017
    Assignee: AU OPTRONICS CORP.
    Inventors: Hsin-Yu Pan, Chung-Min Lien, Han-Ming Chen
  • Patent number: 9541791
    Abstract: A display device includes a flexible display panel, a light module and an optical film. The flexible display panel has a first axis and curving about the first axis as an axis of curvature. The light module is located on one side of the flexible display panel. The optical film is located between the flexible display panel and the light module. The optical film includes a substrate and multiple first strip microstructures. The substrate has a first side and a second side that are opposite to each other. The first side faces the light module while the second side faces the flexible display panel. The first strip microstructures are located on the first side of the substrate, and the first strip microstructures extend along a second axis.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: January 10, 2017
    Assignee: AU OPTRONICS CORP.
    Inventors: Ming-Lung Chen, Kun-Hung Hsieh
  • Patent number: 9542903
    Abstract: A display device includes a plurality of pixel units. Each of the pixel units at least includes three sub-pixels for displaying different colors. The three sub-pixels are electrically connected to three different gate lines, and at least two of the three sub-pixels are electrically connected to the same data line.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: January 10, 2017
    Assignee: AU OPTRONICS CORP.
    Inventors: Yi-Ching Chen, Yu-Sheng Huang, Chia-Wei Chen, Chun-Ru Huang
  • Patent number: 9542884
    Abstract: A display panel includes a display area first and second gate line driving circuits. The display area includes a plurality of pixels is configured to determine how to process a data transmitted on a data line according to first and second control signals transmitted on first and second gate lines respectively and a second control signal transmitted on a second gate line and determine when to emit light according to a light emitting control signal transmitted on a light emitting control line. The first gate line driving circuit is coupled to the first gate line and for providing the first control signal thereto. The second gate line driving circuit is coupled to the second gate line and the light emitting control line and configured to provide the second control signal and the light emitting control signal thereto, respectively.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: January 10, 2017
    Assignee: AU OPTRONICS CORP.
    Inventors: Ya-Ting Lin, Ting-Wei Guo
  • Patent number: 9543038
    Abstract: A shift register has a first switch, a pull-up circuit, and a pull-down circuit. The first switch receives a first clock signal. The pull-up circuit is configured to turn on the first switch to pull up a voltage level of an output terminal of the shift register. The pull-up circuit has a second switch and a first control circuit. The first control circuit is coupled to a first system power terminal to avoid an excessive voltage difference between two nodes of the first control circuit. The pull-down circuit is configured to pull down the voltage level of the output terminal of the shift register when the first switch is turned off, and further configured to keep a voltage level of a control node of a switch coupled between the output terminal and a second system power terminal at a low voltage.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: January 10, 2017
    Assignee: AU OPTRONICS CORP.
    Inventors: Wei-Chien Liao, Ming-Hung Chuang, Cheng-Chiu Pai, Shu-Wen Tzeng
  • Patent number: 9535300
    Abstract: A pixel structure includes a substrate, a plurality of gate lines and data lines, and at least one first pixel. The gate lines and the data lines are disposed on the substrate. The first pixel is disposed on the substrate and electrically connected to corresponding gate line and data line. The first pixel includes a first electrode, a first dielectric layer and a second electrode. The first electrode is disposed on the substrate. The first dielectric layer is disposed on the first electrode, and the first dielectric layer has at least one first island structure. The second electrode is disposed on a top surface of the first island structure, and the second electrode partially exposes the top surface of the first island structure.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: January 3, 2017
    Assignee: AU OPTRONICS CORP.
    Inventors: Ju-Chin Chen, Hsiao-Wei Cheng, Shih-Chyuan Fan Jiang, Yu-Chia Huang
  • Patent number: 9536963
    Abstract: An electrode structure of a transistor, and a pixel structure and a display apparatus comprising the electrode structure of the transistor are disclosed. The electrode structure of the transistor comprises a first electrode and a second electrode. The first electrode has at least two first portions and at least one second portion. The first portions are substantially parallel with each other and each has a first width. The second portion has a second width, and connects the substantially parallel first portions to define a space with an opening. The first width is substantially greater than the second width.
    Type: Grant
    Filed: March 7, 2007
    Date of Patent: January 3, 2017
    Assignee: AU OPTRONICS CORP.
    Inventors: Yu-Min Lin, Kuo-Lung Fang, Feng-Yuan Gan
  • Patent number: 9536483
    Abstract: A display includes a source driver, a demultiplexer, a first data line, a second data line, a first pixel and a second pixel. The demultiplexer includes a first pixel signal transmission unit and a second pixel signal transmission unit. The first pixel signal transmission unit includes a first sub-pixel signal transmission unit, a second sub-pixel signal transmission unit and a third sub-pixel signal transmission unit. The first sub-pixel signal transmission unit and the second sub-pixel signal transmission unit share a drain. A second pixel signal transmission unit next to the first pixel signal transmission unit includes a fourth sub-pixel signal transmission unit, a fifth sub-pixel signal transmission unit and a sixth sub-pixel signal transmission unit. The fourth sub-pixel signal transmission unit and the fifth sub-pixel signal transmission unit share another drain.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: January 3, 2017
    Assignee: AU OPTRONICS CORP.
    Inventors: Kuo-Ming Li, Cheng-Chiu Pai, Chun-Hung Kuo, Yu-Hsuan Li
  • Patent number: 9530223
    Abstract: An image correction method and an image correction device are provided. The image correction method includes the following steps: obtaining a gray level value of a pixel in an image and a frequency domain value of the gray level value; determining whether the frequency domain value is smaller than a first threshold; performing an adaptive gamma correction procedure on the gray level value according to the frequency domain value and outputting the result if the frequency domain value is smaller than the first threshold; outputting the gray level value directly if the frequency domain value is not smaller than the first threshold.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: December 27, 2016
    Assignee: AU OPTRONICS CORP.
    Inventors: Ting-Wei Hsu, Chao-Wei Yeh, Chien-Wen Chen, Chien-Huang Liao
  • Patent number: 9529236
    Abstract: A pixel structure includes a gate line, a first data line, first and second pixel electrodes, first and second active devices, an insulation layer, and first and second connection electrodes. The first and second pixel electrodes are respectively disposed aside a first edge and a second edge of the gate line. The first drain electrode and second drain electrode of the first and second active devices both extend toward the second pixel electrode. The first connection electrode is electrically connected to the first drain electrode through a first contact hole and connected to the first pixel electrode; the first connection electrode and the first data line overlap in the vertical projection direction. The second connection electrode is disposed aside the second edge, and the second connection electrode is connected to the second pixel electrode and electrically connected to the second drain electrode through a second contact hole.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: December 27, 2016
    Assignee: AU OPTRONICS CORP.
    Inventors: Ming-Haw Chang, Chun-Yi Chiang
  • Patent number: 9513491
    Abstract: A 3D image display device includes an image projection unit for projecting a first image; a first polarization unit disposed on a projection path of the first image for linearly polarizing the first image to have a first linear polarization direction; a lens array disposed on the projection path of the first image for refracting an image having a second linear polarization direction, the second linear polarization direction being different from the first linear polarization direction; a first quarter-wave plate disposed on the projection path of the first image for converting polarization direction of an image between a linear polarization direction and a circular polarization direction; and a reflection unit disposed on the projection path of the first image for reflecting the first image transmitted from the first quarter-wave plate back to the first quarter-wave plate.
    Type: Grant
    Filed: November 16, 2014
    Date of Patent: December 6, 2016
    Assignee: AU OPTRONICS CORP.
    Inventors: Kuan-Yu Tung, Hsin-Ying Wu, Li-Min Chen
  • Patent number: 9513502
    Abstract: A flexible display has a display layer, a thin-film transistor (TFT) layer and a flexible substrate. The display layer has a plurality of display units. The TFT layer has a plurality of pixel control circuits and a plurality of sensing circuits. The pixel control circuits are configured to control operations of the plurality of display units. Each of the sensing circuits is configured to generate a deformation signal according to deformation of the flexible display. The flexible substrate and the TFT layer are stacked.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: December 6, 2016
    Assignee: AU OPTRONICS CORP.
    Inventors: Ji-Feng Chen, Chia-Hsun Tu, Po-Yang Lin, Chen-Shuo Huang, Keh-Long Hwu