Patents by Inventor Wei-Chu Hsu

Wei-Chu Hsu 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).

  • Patent number: 11183660
    Abstract: A display device includes a substrate, an auxiliary electrode, a buffer layer, a plurality of active elements, and a plurality of light-emitting elements. The auxiliary electrode is disposed on the substrate and overlapped with an active region. The buffer layer is disposed on the auxiliary electrode. The plurality of active elements are disposed on the buffer layer and disposed in the active region. The plurality of light-emitting elements are electrically connected with the active elements, respectively. Each of the light-emitting elements includes a first electrode, a second electrode, and a light-emitting layer disposed between the first electrode and the second electrode. Each of the second electrodes is electrically connected with the auxiliary electrode.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: November 23, 2021
    Assignee: Au Optronics Corporation
    Inventors: Wei-Chu Hsu, Ko-Ruey Jen
  • Publication number: 20200212350
    Abstract: A display device includes a substrate, an auxiliary electrode, a buffer layer, a plurality of active elements, and a plurality of light-emitting elements. The auxiliary electrode is disposed on the substrate and overlapped with an active region. The buffer layer is disposed on the auxiliary electrode. The plurality of active elements are disposed on the buffer layer and disposed in the active region. The plurality of light-emitting elements are electrically connected with the active elements, respectively. Each of the light-emitting elements includes a first electrode, a second electrode, and a light-emitting layer disposed between the first electrode and the second electrode. Each of the second electrodes is electrically connected with the auxiliary electrode.
    Type: Application
    Filed: November 14, 2019
    Publication date: July 2, 2020
    Applicant: Au Optronics Corporation
    Inventors: Wei-Chu Hsu, Ko-Ruey Jen
  • Patent number: 10504401
    Abstract: A display panel is provided. A pixel array includes a plurality of first subpixels, a first source line coupled to the first subpixels, a plurality of second subpixels displaying the same with the first subpixels, and a second source line coupled to the second subpixels. A multiplexer circuit includes a first switch coupled between the first source line and a source driver and a second switch coupled between the second source line and the source driver. A first compensation capacitor couples between the first source line and a reference voltage, and a capacitance value thereof is related to a cut-off time point of the first switch. A second compensation capacitor couples between the second source line and the reference voltage, and a capacitance value thereof the second compensation capacitor is related to a cut-off time point of the second switch different from the cut-off time point of the second switch.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: December 10, 2019
    Assignee: Au Optronics Corporation
    Inventors: Wei-Chu Hsu, Ko-Ruey Jen
  • Publication number: 20190189043
    Abstract: A display panel is provided. A pixel array includes a plurality of first subpixels, a first source line coupled to the first subpixels, a plurality of second subpixels displaying the same with the first subpixels, and a second source line coupled to the second subpixels. A multiplexer circuit includes a first switch coupled between the first source line and a source driver and a second switch coupled between the second source line and the source driver. A first compensation capacitor couples between the first source line and a reference voltage, and a capacitance value thereof is related to a cut-off time point of the first switch. A second compensation capacitor couples between the second source line and the reference voltage, and a capacitance value thereof the second compensation capacitor is related to a cut-off time point of the second switch different from the cut-off time point of the second switch.
    Type: Application
    Filed: July 9, 2018
    Publication date: June 20, 2019
    Applicant: Au Optronics Corporation
    Inventors: Wei-Chu Hsu, Ko-Ruey Jen
  • 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: 9514680
    Abstract: A pixel driving circuit includes a light emitting diode (LED), a data writing unit, two transistors and two compensation units. The gate of the first transistor is coupled to the data writing unit for determining the current flow of the LED. The first compensation unit is coupled to the first transistor for providing a current path from the gate of the first transistor to a first voltage source and a current path from the gate of the first transistor to a second voltage source. The second compensation unit includes a first capacitor coupled to the gate of the first transistor for voltage coupling and providing a differential voltage that equals to the OLED to the gate of the first transistor. The second transistor is coupled between the first voltage source and a second voltage source for enabling or disabling the current flow between the first and second voltage sources.
    Type: Grant
    Filed: December 31, 2014
    Date of Patent: December 6, 2016
    Assignee: AU OPTRONICS CORP.
    Inventors: Li-Wei Liu, Wei-Chu Hsu, Yung-Chih Chen
  • Patent number: 9495904
    Abstract: A light emitting diode module includes a light emitting unit and a light emitting diode circuit. The light emitting diode circuit includes four transistors and a storage capacitor. A first transistor includes a first end for receiving a data signal, and a control end. The storage capacitor has a first end coupled to a second end of the first transistor. A second transistor has a first end coupled to a first voltage source, and a control end. A third transistor has a first end coupled to a second end of the second transistor, and a control end coupled to a second end of the storage capacitor. A fourth transistor has a first end coupled to the second end of the storage capacitor, a control end, and a second end coupled to the second end of the second transistor.
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: November 15, 2016
    Assignee: AU OPTRONICS CORP.
    Inventors: Wei-Chu Hsu, Li-Wei Liu, Hua-Gang Chang
  • Patent number: 9406733
    Abstract: A pixel structure, including a data line, a scan line, at least one active device, a first auxiliary electrode, and a light emitting device, is provided. The at least one active device is electrically connected with the data line and the scan line, and each active device includes a gate, a channel layer, a source, and a drain. The first auxiliary electrode is electrically insulated from the active device. The light emitting device is disposed above the first auxiliary electrode, wherein the light emitting device includes a first electrode layer, a light emitting layer, and a second electrode layer. The first electrode layer is electrically connected with the first auxiliary electrode. The light emitting layer is disposed on the first electrode layer. The second electrode layer is disposed on the light emitting layer, wherein the second electrode layer is electrically connected with the active device.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: August 2, 2016
    Assignee: Au Optronics Corporation
    Inventors: Yi-Hsuan Lee, Peng-Bo Xi, Wei-Chu Hsu
  • Publication number: 20160125808
    Abstract: A pixel structure includes a light-emitting diode, a transistor, a data-receiving unit, a compensating unit, and a resetting unit. The transistor is configured to be electrically coupled to the light-emitting diode, and drive the light-emitting diode based on a voltage difference between the control terminal and the first terminal of the transistor. The data-receiving unit is configured to be electrically coupled to the first terminal of the transistor, and provide a pixel date signal to the first terminal of the transistor based on a first scan signal. The compensating unit is electrically coupled to the control terminal and the second terminal of the transistor to act as a current path therebetween. The resetting unit is electrically coupled to the light-emitting diode. The resetting unit is configured to respectively provide a reverse bias and reference voltage to the light-emitting diode and the control terminal of the transistor.
    Type: Application
    Filed: January 29, 2015
    Publication date: May 5, 2016
    Inventors: Wei-Chu HSU, Pi-Cheng WU, Ko-Ruey JEN, Chien-Ya LEE
  • Patent number: 9318047
    Abstract: An organic light emitting display unit structure including a first pixel, a second pixel adjacent to the first pixel, a first scan line electrically connected to the first pixel, a second scan line electrically connected to the second pixel, a data line, a power line, a sustaining signal line, a common reset signal line and a common light emitting signal line is provided. The power line and the sustaining signal line are respectively electrically connected to both of the first pixel and the second pixel. The data line intersects with the first scan line and the second scan line and is electrically connected to the first pixel and the second pixel. The common reset signal line and the common light emitting signal line are substantially disposed inside the first pixel and the second pixel respectively and are electrically connected to the first pixel and the second pixel.
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: April 19, 2016
    Assignee: Au Optronics Corporation
    Inventors: Wei-Chu Hsu, Pi-Cheng Wu, Tsung-Ting Tsai
  • Publication number: 20160104753
    Abstract: A pixel structure, including a data line, a scan line, at least one active device, a first auxiliary electrode, and a light emitting device, is provided. The at least one active device is electrically connected with the data line and the scan line, and each active device includes a gate, a channel layer, a source, and a drain. The first auxiliary electrode is electrically insulated from the active device. The light emitting device is disposed above the first auxiliary electrode, wherein the light emitting device includes a first electrode layer, a light emitting layer, and a second electrode layer. The first electrode layer is electrically connected with the first auxiliary electrode. The light emitting layer is disposed on the first electrode layer. The second electrode layer is disposed on the light emitting layer, wherein the second electrode layer is electrically connected with the active device.
    Type: Application
    Filed: December 18, 2015
    Publication date: April 14, 2016
    Inventors: Yi-Hsuan Lee, Peng-Bo Xi, Wei-Chu Hsu
  • Publication number: 20160049107
    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: Application
    Filed: December 27, 2014
    Publication date: February 18, 2016
    Inventors: Wei-Chu Hsu, Man-Wen Shih, Ya-Ling Chen, Chien-Ya Lee
  • Patent number: 9263509
    Abstract: A pixel structure, including a data line, a scan line, at least one active device, a first auxiliary electrode, and a light emitting device, is provided. The at least one active device is electrically connected with the data line and the scan line, and each active device includes a gate, a channel layer, a source, and a drain. The first auxiliary electrode is electrically insulated from the active device. The light emitting device is disposed above the first auxiliary electrode, wherein the light emitting device includes a first electrode layer, a light emitting layer, and a second electrode layer. The first electrode layer is electrically connected with the first auxiliary electrode. The light emitting layer is disposed on the first electrode layer. The second electrode layer is disposed on the light emitting layer, wherein the second electrode layer is electrically connected with the active device.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: February 16, 2016
    Assignee: Au Optronics Corporation
    Inventors: Yi-Hsuan Lee, Peng-Bo Xi, Wei-Chu Hsu
  • Publication number: 20150294624
    Abstract: A pixel driving circuit includes a light emitting diode (LED), a data writing unit, two transistors and two compensation units. The gate of the first transistor is coupled to the data writing unit for determining the current flow of the LED. The first compensation unit is coupled to the first transistor for providing a current path from the gate of the first transistor to a first voltage source and a current path from the gate of the first transistor to a second voltage source. The second compensation unit includes a first capacitor coupled to the gate of the first transistor for voltage coupling and providing a differential voltage that equals to the OLED to the gate of the first transistor. The second transistor is coupled between the first voltage source and a second voltage source for enabling or disabling the current flow between the first and second voltage sources.
    Type: Application
    Filed: December 31, 2014
    Publication date: October 15, 2015
    Inventors: LI-WEI LIU, WEI-CHU HSU, YUNG-CHIH CHEN
  • Publication number: 20150069356
    Abstract: A pixel structure, including a data line, a scan line, at least one active device, a first auxiliary electrode, and a light emitting device, is provided. The at least one active device is electrically connected with the data line and the scan line, and each active device includes a gate, a channel layer, a source, and a drain. The first auxiliary electrode is electrically insulated from the active device. The light emitting device is disposed above the first auxiliary electrode, wherein the light emitting device includes a first electrode layer, a light emitting layer, and a second electrode layer. The first electrode layer is electrically connected with the first auxiliary electrode. The light emitting layer is disposed on the first electrode layer. The second electrode layer is disposed on the light emitting layer, wherein the second electrode layer is electrically connected with the active device.
    Type: Application
    Filed: July 31, 2014
    Publication date: March 12, 2015
    Inventors: Yi-Hsuan Lee, Peng-Bo Xi, Wei-Chu Hsu
  • Publication number: 20140354182
    Abstract: A pixel includes an organic light-emitting diode, a driving transistor, a first switch, a third switch and a fourth switch. The driving transistor is electrically coupled to the organic light-emitting diode. When the pixel is in a data writing period, the first switch is configured to write a data voltage into a control terminal of the driving transistor. When the pixel is in a compensating period, a path between a control terminal and a first terminal of the fourth switch is established to charge or discharge the control terminal of the driving transistor through a current path, thereby forming a compensating voltage according to the voltage of the control terminal of the driving transistor. The driving transistor is turned on by the compensating voltage during a light emitting period, and the third switch is turned on such that a driving current is provided to the organic light emitting diode.
    Type: Application
    Filed: January 22, 2014
    Publication date: December 4, 2014
    Applicant: AU Optronics Corporation
    Inventors: Li-Wei LIU, Wei-Chu HSU
  • Publication number: 20140339998
    Abstract: A light emitting diode module includes a light emitting unit and a light emitting diode circuit. The light emitting diode circuit includes four transistors and a storage capacitor. A first transistor includes a first end for receiving a data signal, and a control end. The storage capacitor has a first end coupled to a second end of the first transistor. A second transistor has a first end coupled to a first voltage source, and a control end. A third transistor has a first end coupled to a second end of the second transistor, and a control end coupled to a second end of the storage capacitor. A fourth transistor has a first end coupled to the second end of the storage capacitor, a control end, and a second end coupled to the second end of the second transistor.
    Type: Application
    Filed: August 19, 2013
    Publication date: November 20, 2014
    Applicant: AU Optronics Corp.
    Inventors: Wei-Chu Hsu, Li-Wei Liu, Hua-Gang Chang
  • Publication number: 20130314308
    Abstract: An organic light emitting display unit structure including a first pixel, a second pixel adjacent to the first pixel, a first scan line electrically connected to the first pixel, a second scan line electrically connected to the second pixel, a data line, a power line, a sustaining signal line, a common reset signal line and a common light emitting signal line is provided. The power line and the sustaining signal line are respectively electrically connected to both of the first pixel and the second pixel. The data line intersects with the first scan line and the second scan line and is electrically connected to the first pixel and the second pixel. The common reset signal line and the common light emitting signal line are substantially disposed inside the first pixel and the second pixel respectively and are electrically connected to the first pixel and the second pixel.
    Type: Application
    Filed: October 15, 2012
    Publication date: November 28, 2013
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Wei-Chu Hsu, Pi-Cheng Wu, Tsung-Ting Tsai