Patents by Inventor CHI-LIANG WU

CHI-LIANG WU 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: 20240133918
    Abstract: In a method for obtaining the equivalent oxide thickness of a dielectric layer, a first semiconductor capacitor including a first silicon dioxide layer and a second semiconductor capacitor including a second silicon dioxide layer are provided and a modulation voltage is applied to the semiconductor capacitors to measure a first scanning capacitance microscopic signal and a second scanning capacitance microscopic signal. According to the equivalent oxide thicknesses of the silicon dioxide layers and the scanning capacitance microscopic signals, an impedance ratio is calculated. The modulation voltage is applied to a third semiconductor capacitor including a dielectric layer to measure a third scanning capacitance microscopic signal. Finally, the equivalent oxide thickness of the dielectric layer is obtained according to the equivalent oxide thickness of the first silicon dioxide layer, the first scanning capacitance microscopic signal, third scanning capacitance microscopic signal, and the impedance ratio.
    Type: Application
    Filed: April 12, 2023
    Publication date: April 25, 2024
    Inventors: MAO-NAN CHANG, CHI-LUN LIU, HSUEH-LIANG CHOU, YI-SHAN WU, CHIAO-JUNG LIN, YU-HSUN HSUEH
  • Patent number: 10488967
    Abstract: A shift register operates in a display period and a touch period in turn. The shift register circuit comprises a plurality of shift register units. Each shift register unit generates a pulse signal to a gate line, a following adjacent shift register unit, and an anterior adjacent shift register unit. Each shift register unit comprises a flip-flop (FF) circuit and an output circuit. The FF circuit controls potentials of an internal terminal and an internal inverted terminal based on a received a setting signal and a received reset signal. The output circuit generates the pulse signal related to a clock signal under a control of the internal terminal and the received internal inverted terminal. During the touch period, the potential of the internal terminal and the potential of the internal inverted terminal remain the same as the potential in the anterior display period.
    Type: Grant
    Filed: December 25, 2017
    Date of Patent: November 26, 2019
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Hideo Sato, Chi-Liang Wu
  • Publication number: 20180181244
    Abstract: A shift register operates in a display period and a touch period in turn. The shift register circuit comprises a plurality of shift register units. Each shift register unit generates a pulse signal to a gate line, a following adjacent shift register unit, and an anterior adjacent shift register unit. Each shift register unit comprises a flip-flop (FF) circuit and an output circuit. The FF circuit controls potentials of an internal terminal and an internal inverted terminal based on a received a setting signal and a received reset signal. The output circuit generates the pulse signal related to a clock signal under a control of the internal terminal and the received internal inverted terminal. During the touch period, the potential of the internal terminal and the potential of the internal inverted terminal remain the same as the potential in the anterior display period.
    Type: Application
    Filed: December 25, 2017
    Publication date: June 28, 2018
    Inventors: Hideo Sato, Chi-Liang Wu
  • Patent number: 9997544
    Abstract: The present disclosure provides a contact window structure. In the contact window structure, a first insulating layer, having a first opening, is positioned on a first metal layer, wherein the first opening exposes a part of the first metal layer. A second metal layer covers the first opening and contacts with the first metal layer via the first opening. A second insulating layer, having a second opening, is positioned on the first insulating layer, wherein the second opening exposes a part of the second layer and the first insulating layer. The projection area of the second opening on the first metal layer covers the projection area of the first opening on the first metal layer. A pixel structure containing the contact window structure and a manufacturing method thereof are also provided herein.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: June 12, 2018
    Assignee: E Ink Holdings Inc.
    Inventors: Kuan-Yi Lin, Fang-An Shu, Tzung-Wei Yu, Chi-Liang Wu
  • Publication number: 20170125443
    Abstract: The present disclosure provides a contact window structure. In the contact window structure, a first insulating layer, having a first opening, is positioned on a first metal layer, wherein the first opening exposes a part of the first metal layer. A second metal layer covers the first opening and contacts with the first metal layer via the first opening. A second insulating layer, having a second opening, is positioned on the first insulating layer, wherein the second opening exposes a part of the second layer and the first insulating layer. The projection area of the second opening on the first metal layer covers the projection area of the first opening on the first metal layer. A pixel structure containing the contact window structure and a manufacturing method thereof are also provided herein.
    Type: Application
    Filed: January 18, 2017
    Publication date: May 4, 2017
    Inventors: Kuan-Yi LIN, Fang-An SHU, Tzung-Wei YU, Chi-Liang WU
  • Patent number: 9622366
    Abstract: A display panel having a wireless charging function is provided, and the display panel includes a first substrate, an induction coil layer, a display pixel layer, and a second substrate. The induction coil layer is disposed on the first substrate. The induction coil layer includes at least one induction coil. The induction coil layer is adapted for collaborating with a wireless charging power supply, such that the induction coil layer executes the wireless charging function. The display pixel layer is disposed on the induction coil layer. The second substrate is disposed on the display pixel layer.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: April 11, 2017
    Assignee: E Ink Holdings Inc.
    Inventors: Chin-Wen Lin, Po-Hsin Lin, Chi-Liang Wu, Ted-Hong Shinn
  • Patent number: 9590036
    Abstract: The present disclosure provides a contact window structure. In the contact window structure, a first insulating layer, having a first opening, is positioned on a first metal layer, wherein the first opening exposes a part of the first metal layer. A second metal layer covers the first opening and contacts with the first metal layer via the first opening. A second insulating layer, having a second opening, is positioned on the first insulating layer, wherein the second opening exposes a part of the second layer and the first insulating layer. The projection area of the second opening on the first metal layer covers the projection area of the first opening on the first metal layer. A pixel structure containing the contact window structure and a manufacturing method thereof are also provided herein.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: March 7, 2017
    Assignee: E Ink Holdings Inc.
    Inventors: Kuan-Yi Lin, Fang-An Shu, Tzung-Wei Yu, Chi-Liang Wu
  • Patent number: 9543954
    Abstract: A driver circuit with device variation compensation function and an operation method thereof are provided. The driver circuit includes a pull-up switch unit, an isolating switch and a pull-down switch unit. A first terminal of the pull-up switch unit is coupled to a first voltage. A second terminal of the pull-up switch unit is coupled to an output terminal of the driver circuit. A first terminal of the isolating switch is coupled to the second terminal of the pull-up switch unit. A first terminal of the pull-down switch unit is coupled to a second terminal of the isolating switch. A second terminal of the pull-down switch unit is coupled to a second voltage. The pull-down switch unit has a device variation compensation function.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: January 10, 2017
    Assignee: Industrial Technology Research Institute
    Inventors: Chi-Liang Wu, Ya-Hsiang Tai, Yung-Hui Yeh, Zong-Hua Cai
  • Patent number: 9520451
    Abstract: An organic light-emitting diode display device includes a substrate, a light-absorption layer, an active array structure, and an organic light-emitting diode. The substrate has a first and a second surface opposite to each other. The light-absorption layer is disposed on the first surface, and has at least one opening exposing a portion of the first surface. The active array structure is positioned on the second surface, and includes at least one data line, at least one gate line, and at least one switching device electrically connected to the gate and data lines. The light-absorption layer overlaps at least one of the data line and the gate line when viewed in a direction perpendicular to the substrate. The organic light-emitting diode is electrically connected to the switching device, and the organic light-emitting diode overlaps the opening when viewed in the direction perpendicular to the substrate.
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: December 13, 2016
    Assignee: E Ink Holdings Inc.
    Inventors: Wei-Chou Lan, Ted-Hong Shinn, Xue-Hung Tsai, Chi-Liang Wu, Chih-Hsiang Yang
  • Publication number: 20160112046
    Abstract: A driver circuit with device variation compensation function and an operation method thereof are provided. The driver circuit includes a pull-up switch unit, an isolating switch and a pull-down switch unit. A first terminal of the pull-up switch unit is coupled to a first voltage. A second terminal of the pull-up switch unit is coupled to an output terminal of the driver circuit. A first terminal of the isolating switch is coupled to the second terminal of the pull-up switch unit. A first terminal of the pull-down switch unit is coupled to a second terminal of the isolating switch. A second terminal of the pull-down switch unit is coupled to a second voltage. The pull-down switch unit has a device variation compensation function.
    Type: Application
    Filed: January 9, 2015
    Publication date: April 21, 2016
    Inventors: Chi-Liang Wu, Ya-Hsiang Tai, Yung-Hui Yeh, Zong-Hua Cai
  • Patent number: 9275569
    Abstract: A threshold voltage sensing circuit applied in a display panel includes a first sensor and a second sensor. The first sensor positioned in the display panel receives an operation signal at a regular time point after start-up and continuously receives multiple driving signals which are the same as those received by the pixel circuits of the display panel and outputs a first output voltage accordingly. The second sensor positioned in the display panel receives the driving signals at a regular time point after start-up and outputs a second output voltage accordingly. When the voltage difference between the first output voltage and the second output voltage is beyond a variation standard, the low level of the gate voltage of the pixel circuit is adjusted.
    Type: Grant
    Filed: June 24, 2013
    Date of Patent: March 1, 2016
    Assignee: E Ink Holdings Inc.
    Inventors: Chi-Liang Wu, Po-Hsin Lin, Young-Ran Chuang, Chin-Wen Lin, Ted-Hong Shinn
  • Patent number: 9177498
    Abstract: A display panel includes a gate driving circuit and a control circuit. The gate driving circuit includes a plurality of circuit stages. An Nth-circuit stage of the circuit stages includes a start unit, a drive unit, a first pull-down unit, a second pull-down unit, and a current detecting unit. The drive unit is configured to provide a dock signal to an Nth-output terminal. The first pull-down unit is configured to make an enable node have a first pull-down voltage. The second pull-down unit is configured to provide a disable node with a second pull-down voltage. The current detecting unit is configured to detect an error current passing through the first pull-down unit and output an error signal according to the error current. The control circuit is configured to adjust the second pull-down voltage according to the error signal of the Nth-circuit stage.
    Type: Grant
    Filed: November 11, 2013
    Date of Patent: November 3, 2015
    Assignee: E Ink Holdings Inc.
    Inventors: Chi-Liang Wu, Po-Hsin Lin, Chin-Wen Lin, Ted-Hong Shinn
  • Publication number: 20150270164
    Abstract: The present disclosure provides a contact window structure. In the contact window structure, a first insulating layer, having a first opening, is positioned on a first metal layer, wherein the first opening exposes a part of the first metal layer. A second metal layer covers the first opening and contacts with the first metal layer via the first opening. A second insulating layer, having a second opening, is positioned on the first insulating layer, wherein the second opening exposes a part of the second layer and the first insulating layer. The projection area of the second opening on the first metal layer covers the projection area of the first opening on the first metal layer. A pixel structure containing the contact window structure and a manufacturing method thereof are also provided herein.
    Type: Application
    Filed: March 17, 2015
    Publication date: September 24, 2015
    Inventors: Kuan-Yi LIN, Fang-An SHU, Tzung-Wei YU, Chi-Liang WU
  • Patent number: 9068729
    Abstract: A lamp including a light source, a reflective unit and a light modulation module is provided. The light source provides an illuminating light, and the reflective unit reflects the illuminating light. The light modulation module is disposed between the light source and the reflective unit. In the light modulation module, a region where movable light absorbing materials exist is a light absorbing region, and a region where the movable light absorbing materials are absent is a light penetration region. By applying different electrical fields to the movable light absorbing materials, sizes and locations of the light absorbing region and the light penetration region can be changed. A portion of the illuminating light irradiating the light penetration region penetrates through the light penetration region, is transmitted to the reflective unit, being reflected by the reflective unit, and penetrates through the light penetration region again sequentially.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: June 30, 2015
    Assignee: E Ink Holdings Inc.
    Inventors: Chi-Liang Wu, Po-Hsin Lin, Chin-Wen Lin, Ted-Hong Shinn
  • Publication number: 20150137091
    Abstract: An organic light-emitting diode display device includes a substrate, a light-absorption layer, an active array structure, and an organic light-emitting diode. The substrate has a first and a second surface opposite to each other. The light-absorption layer is disposed on the first surface, and has at least one opening exposing a portion of the first surface. The active array structure is positioned on the second surface, and includes at least one data line, at least one gate line, and at least one switching device electrically connected to the gate and data lines. The light-absorption layer overlaps at least one of the data line and the gate line when viewed in a direction perpendicular to the substrate. The organic light-emitting diode is electrically connected to the switching device, and the organic light-emitting diode overlaps the opening when viewed in the direction perpendicular to the substrate.
    Type: Application
    Filed: August 20, 2014
    Publication date: May 21, 2015
    Inventors: Wei-Chou LAN, Ted-Hong SHINN, Xue-Hung TSAI, Chi-Liang WU, Chih-Hsiang YANG
  • Patent number: 8879144
    Abstract: A driving substrate is disclosed. The driving substrate includes a first substrate. The first substrate has a display zone and a border zone surrounding the display zone. The border zone includes at least one active area and at least one non-active area. The active area includes a first conductive layer disposed on the first substrate. The non-active area connects the active area to form the border zone. A display using the driving substrate is also disclosed.
    Type: Grant
    Filed: December 16, 2012
    Date of Patent: November 4, 2014
    Assignee: E Ink Holdings Inc.
    Inventors: Chin-Wei Lin, Po-Hsin Lin, Chi-Liang Wu, Ted-Hong Shinn
  • Patent number: 8847227
    Abstract: A display panel circuit structure includes a substrate, a first metal layer, a second metal layer, and a third metal layer. The first metal layer is disposed on the substrate. The second metal layer is disposed on the first metal layer and electrically connected to the first metal layer, in which the second metal layer has a pad area and a trace area connected to the pad area. The line width of the second metal layer in the pad area is greater than the line width of the second metal layer in the trace area. The third metal layer is disposed on the second metal layer, in which the third metal layer does not overlap the second metal layer n the trace area.
    Type: Grant
    Filed: November 23, 2012
    Date of Patent: September 30, 2014
    Assignee: E Ink Holdings Inc.
    Inventors: Po-Hsin Lin, Chi-Liang Wu, Chin-Wen Lin, Ted-Hong Shinn
  • Publication number: 20140225882
    Abstract: A display panel includes a gate driving circuit and a control circuit. The gate driving circuit includes a plurality of circuit stages. An Nth-circuit stage of the circuit stages includes a start unit, a drive unit, a first pull-down unit, a second pull-down unit, and a current detecting unit. The drive unit is configured to provide a dock signal to an Nth-output terminal. The first pull-down unit is configured to make an enable node have a first pull-down voltage. The second pull-down unit is configured to provide a disable node with a second pull-down voltage. The current detecting unit is configured to detect an error current passing through the first pull-down unit and output an error signal according to the error current. The control circuit is configured to adjust the second pull-down voltage according to the error signal of the Nth-circuit stage.
    Type: Application
    Filed: November 11, 2013
    Publication date: August 14, 2014
    Applicant: E Ink Holdings Inc.
    Inventors: Chi-Liang WU, Po-Hsin LIN, Chin-Wen LIN, Ted-Hong SHINN
  • Patent number: 8743027
    Abstract: An OLED driving circuit is provided. The OLED driving circuit comprises a switch transistor, a storage capacitor, a driving transistor and a control module. In a charging time period, a charging switch of the control module is conducted to connect the storage capacitor and a first voltage end and a data signal is transmitted from the switch transistor to the storage capacitor. In a memory time period, a memory switch of the control module is conducted to connect the storage capacitor and an OLED and the data signal is transmitted from the switch transistor to the storage capacitor. In a light-emitting time period, three light-emitting switches are conducted to connect the driving transistor to the storage capacitor, the first voltage end and the OLED.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: June 3, 2014
    Assignee: E Ink Holdings Inc.
    Inventors: Chi-Liang Wu, Po-Hsin Lin, Chin-Wen Lin, Ted-Hong Shinn
  • Publication number: 20140085172
    Abstract: A threshold voltage sensing circuit applied in a display panel includes a first sensor and a second sensor. The first sensor positioned in the display panel receives an operation signal at a regular time point after start-up and continuously receives multiple driving signals which are the same as those received by the pixel circuits of the display panel and outputs a first output voltage accordingly. The second sensor positioned in the display panel receives the driving signals at a regular time point after start-up and outputs a second output voltage accordingly. When the voltage difference between the first output voltage and the second output voltage is beyond a variation standard, the low level of the gate voltage of the pixel circuit is adjusted.
    Type: Application
    Filed: June 24, 2013
    Publication date: March 27, 2014
    Inventors: Chi-Liang WU, Po-Hsin LIN, Young-Ran CHUANG, Chin-Wen LIN, Ted-Hong SHINN