Patents by Inventor Yi-Cheng Liu

Yi-Cheng Liu 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: 20250113419
    Abstract: A display device and a brightness adjustment method thereof are provided. The display device includes multiple light panels and a control circuit. Each light panel includes multiple light-emitting diodes, a driving circuit, and a storage circuit. The driving circuit is used to drive the light-emitting diodes and detect a forward voltage value of at least one light-emitting diode among the light-emitting diodes as a forward voltage value of a corresponding light panel. When a target light panel is used to replace one of the light panels, the control circuit controls forward voltage values of the target light panel and the reference light panel to become consistent.
    Type: Application
    Filed: August 30, 2024
    Publication date: April 3, 2025
    Applicant: Optoma Corporation
    Inventors: Yi-Cheng Liu, Yen-Hsiang Hung, Cheng-Chien Ou
  • Patent number: 12259433
    Abstract: A motor commutation testing circuit is provided. When a commutation testing circuit determines that the motor commutation testing circuit enters a test mode, a selector circuit selects a commutation signal generating circuit and provides a simulated commutation signal generated by the commutation signal generating circuit to a control circuit. When the testing circuit determines that the motor commutation testing circuit enters a rotation detection mode, the selector circuit selects a motor rotation detecting circuit and provides a commutation signal of a motor that is detected by the motor rotation detecting circuit to the control circuit.
    Type: Grant
    Filed: October 17, 2022
    Date of Patent: March 25, 2025
    Assignee: ANPEC ELECTRONICS CORPORATION
    Inventor: Yi-Cheng Liu
  • Publication number: 20250063922
    Abstract: The present disclosure provides a display device and a method for manufacturing a display device. The method for manufacturing a display device of the present disclosure includes: forming a light emitting layer, a first metal layer and a protective layer on a substrate, wherein the first metal layer is located between the light emitting layer and the protective layer; forming a release layer covering over the light emitting layer, the first metal layer and the protective layer; removing a first portion of the release layer to expose the light emitting layer and the first portion of the first metal layer; and forming a first encapsulation layer covering the light emitting layer, a first portion of the first metal layer and a second portion of the release layer. A thickness of the first encapsulation layer on the light emitting layer is substantially equal to a thickness of the first encapsulation layer on the first portion of the first metal layer.
    Type: Application
    Filed: August 16, 2022
    Publication date: February 20, 2025
    Inventors: MAOCHUNG LIN, YI-CHENG LIU, HUEI-SIOU CHEN, CHIU YEN SU
  • Publication number: 20240164003
    Abstract: An electrostatic discharge device including at least two conductive materials isolated from each other and at least one electrostatic eliminator. The conductive materials are located outside two opposite side walls of an insulated fluid-carrying member and separated from the side walls thereof. When electrostatic charges are accumulated on the insulated fluid-carrying member, the electrostatic charges form an electrostatic voltage on the conductive materials. The electrostatic eliminator is electrically connected to the conductive materials and directly disconnected from a grounding terminal. The electrostatic eliminator releases and eliminates the electrostatic charges by the conductive materials to reduce the electrostatic voltage. In addition, the insulated fluid-carrying member can also be replaced by an insulation container. When the insulation container is used, induction electrodes can replace the conductive materials in the insulation container.
    Type: Application
    Filed: November 16, 2023
    Publication date: May 16, 2024
    Inventors: TAO-CHIN WEI, YUAN-PING LIU, YI-CHENG LIU
  • Patent number: 11961714
    Abstract: A substrate processing apparatus comprises a chamber member that defines an interior volume that has an aspect ratio. The chamber member comprises a pair of laterally opposing inlet walls and a loading port. Each of the pair of laterally opposing inlet walls has an inlet port configured to receive output from a remote plasma source. The loading port is arranged between the pair of inlet walls, configured to allow passage of a substrate into the interior volume.
    Type: Grant
    Filed: May 31, 2021
    Date of Patent: April 16, 2024
    Assignee: LINCO TECHNOLOGY CO., LTD.
    Inventors: Yi-Yuan Huang, Yi-Cheng Liu
  • Publication number: 20240071731
    Abstract: A substrate processing apparatus, comprising: a processing chamber having a plasma intake wall configured to receive plasma from a remote plasma source (RPS) and a surrounding wall having an inner surface defining an interior volume for receiving a substrate; and a substrate support having a substrate supporting surface facing the plasma intake wall and elevatably arranged in the interior volume of the processing chamber. The surrounding wall, in a cross-section of the processing chamber, includes: a first segment having a first width associated with a processing region for the substrate support; a second segment having a width greater than the first width that is further away from the plasma intake wall than the first segment.
    Type: Application
    Filed: October 26, 2023
    Publication date: February 29, 2024
    Inventors: Yi-Yuan HUANG, Yi-Cheng LIU
  • Publication number: 20240044985
    Abstract: A motor commutation testing circuit is provided. When a commutation testing circuit determines that the motor commutation testing circuit enters a test mode, a selector circuit selects a commutation signal generating circuit and provides a simulated commutation signal generated by the commutation signal generating circuit to a control circuit. When the testing circuit determines that the motor commutation testing circuit enters a rotation detection mode, the selector circuit selects a motor rotation detecting circuit and provides a commutation signal of a motor that is detected by the motor rotation detecting circuit to the control circuit.
    Type: Application
    Filed: October 17, 2022
    Publication date: February 8, 2024
    Inventor: YI-CHENG LIU
  • Patent number: 11855562
    Abstract: An automatic control system for a phase angle of a motor is provided. A current detector circuit detects a current signal of the motor to output a current detected signal. A control circuit outputs a control signal according to the current detected signal indicating a time point at which the current signal reaches a zero value. A driver circuit outputs a driving signal according to the control signal. An output circuit operates to output a motor rotation adjusting signal to the motor to adjust a rotational state of the motor according to the driving signal.
    Type: Grant
    Filed: August 3, 2022
    Date of Patent: December 26, 2023
    Assignee: ANPEC ELECTRONICS CORPORATION
    Inventor: Yi-Cheng Liu
  • Publication number: 20230398563
    Abstract: A parallel-type coating apparatus for coating at least one object to be coated carried by a carrier includes a double-layer vacuum chamber having feed and discharge chambers opposite to each other in a Z-direction, and a plurality of process chambers for performing at least a fixed point coating on the at least one object to be coated. The double-layer vacuum chamber and the process chambers are arranged in two juxtaposed rows in a Y-direction transverse to the Z-direction. A feed lifting mechanism is disposed in one of the double-layer vacuum chamber 3 and the process chambers, and includes a feed lifting seat movable in the Z-direction. A plurality of first conveying devices are respectively disposed in the other ones of the process chambers for conveying the carrier. A method for coating a multilayer film on at least one object to be coated carried by a carrier is also disclosed.
    Type: Application
    Filed: December 2, 2022
    Publication date: December 14, 2023
    Applicant: LINCO TECHNOLOGY CO., LTD.
    Inventors: Yi-Yuan HUANG, Yi-Cheng LIU
  • Publication number: 20230402948
    Abstract: An automatic control system for a phase angle of a motor is provided. A current detector circuit detects a current signal of the motor to output a current detected signal. A control circuit outputs a control signal according to the current detected signal indicating a time point at which the current signal reaches a zero value. A driver circuit outputs a driving signal according to the control signal. An output circuit operates to output a motor rotation adjusting signal to the motor to adjust a rotational state of the motor according to the driving signal.
    Type: Application
    Filed: August 3, 2022
    Publication date: December 14, 2023
    Inventor: YI-CHENG LIU
  • Publication number: 20230245860
    Abstract: A diffusing plate includes a plate body including a rectangular hole-configuring region, a plurality of holes arranged in the rectangular hole-configuring region and arranged concentrically to form a first to an N-th rectangular patterns from an inside to an outside sequentially. Scales of the first to the N-th rectangular patterns are incrementally increased, and N is a positive integer. One portion of the holes are located in an area near a center of the rectangular hole-configuring region, another portion of the holes are located in four corner areas of the rectangular hole-configuring region, each of the holes has a diameter, and the diameter of the one portion of the holes is smaller than the diameter of the another portion of the holes.
    Type: Application
    Filed: April 12, 2023
    Publication date: August 3, 2023
    Inventors: Yi-Yuan HUANG, Cheng-Yu TSAO, Cheng-Sheng LIN, Tsung-Wei CHANG, Yi-Cheng LIU
  • Patent number: 11473895
    Abstract: The present invention provides a reflective condensing interferometer for focusing on a preset focus. The reflective condensing interferometer includes a concave mirror set, a convex mirror, a light splitting element, and a reflecting element. The concave mirror set has first and second concave surface portions which are oppositely located on two sides of a central axis passing through the preset focus and are concave on a surface facing the central axis and the preset focus. Light is preset to be incident in parallel to the central axis in use. The convex mirror is disposed between the concave mirror set and the preset focus on the central axis, and is convex away from the preset focus. The light splitting element vertically intersects with the central axis between the convex mirror and the preset focus. The reflecting element is disposed between the light splitting element and the convex mirror.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: October 18, 2022
    Assignee: NATIONAL APPLIED RESEARCH LABORATORIES
    Inventors: Yi-Cheng Liu, Chun-Jen Weng, Tai-Shan Liao, Guo-Hao Lu
  • Publication number: 20220285132
    Abstract: A substrate processing apparatus comprises a chamber member that defines an interior volume that has an aspect ratio. The chamber member comprises a pair of laterally opposing inlet walls and a loading port. Each of the pair of laterally opposing inlet walls has an inlet port configured to receive output from a remote plasma source. The loading port is arranged between the pair of inlet walls, configured to allow passage of a substrate into the interior volume.
    Type: Application
    Filed: May 31, 2021
    Publication date: September 8, 2022
    Inventors: YI-YUAN HUANG, YI-CHENG LIU
  • Publication number: 20220254660
    Abstract: A substrate processing apparatus, comprising: a processing chamber having a plasma intake wall configured to receive plasma from a remote plasma source (RPS) and a surrounding wall having inner surface defining an interior volume for receiving a substrate; and a substrate support having a substrate supporting surface facing the plasma intake wall and elevatably arranged in the interior volume of the processing chamber. The surrounding wall, in a cross-section of the processing chamber, includes: a first segment having a first width associated with a processing region for the substrate support; a second segment having a width greater than the first width that is further away from the plasma intake wall than the first segment.
    Type: Application
    Filed: February 5, 2021
    Publication date: August 11, 2022
    Inventors: YI-YUAN HUANG, YI-CHENG LIU
  • Patent number: 11205984
    Abstract: A motor driving circuit and a motor driving method are provided. The motor driving circuit is used to drive a motor, and includes a starting unit, a driving unit, a floating phase selecting unit, a hysteresis comparator, an integration circuit, a first comparator and a control circuit. The control circuit controls the floating phase selecting unit to select a floating phase to output a floating phase voltage signal, and controls, in response to an initial starting signal, the integration circuit to use a first integration time, and determine whether the motor has been successfully started. In response to a successful start, the control circuit controls the integration circuit to use a second integration time, and controls the starting unit to be switched to an operation mode to control the driving unit to drive the motor. The first integration time is greater than the second integration time.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: December 21, 2021
    Assignee: ANPEC ELECTRONICS CORPORATION
    Inventors: Kun-Min Chen, Yi-Cheng Liu
  • Patent number: 11145844
    Abstract: A method of manufacturing an electroluminescent device includes the following steps. A substrate including a first sub-pixel region and a second sub-pixel region is provided. A first light-emitting layer is formed over the substrate through a shadow mask to cover the first sub-pixel region and at least a portion of the second sub-pixel region. A sacrificial layer is formed over the substrate, wherein the sacrificial layer includes an opening exposing a portion of the first light-emitting layer that is over the second sub-pixel region. The portion of the first light-emitting layer that is over the second sub-pixel region is removed. A second light-emitting layer is formed over the sacrificial layer and on the second sub-pixel region through the opening of the sacrificial layer. The sacrificial layer is removed simultaneously with a portion of the second light-emitting layer that is over the sacrificial layer.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: October 12, 2021
    Assignee: INT TECH CO., LTD.
    Inventors: Huei-Siou Chen, Yi-Cheng Liu, Li-Chen Wei
  • Patent number: 11069638
    Abstract: An electronic component includes a circuit substrate, a connecting electrode, a micro-element, and a solder. The connecting electrode is located on the circuit substrate. The connecting electrode has a first transparent conductive layer. A surface of the first transparent conductive layer is located opposite the circuit substrate, and has a plurality of micrometers or nanometer particles. The micro-element is electrically connected to the connecting electrode. The solder is located between the connecting electrode and the micro-element, and fixes the micro-element on the connecting electrode.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: July 20, 2021
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Yi-Cheng Liu, Ho-Cheng Lee, Chung-Chan Liu
  • Patent number: 11071190
    Abstract: An electrostatic discharge device includes at least two conductive materials and at least one electrostatic eliminating circuit. The conductive materials are attached to the outer wall of an insulating hollow tube. The conductive materials separate from each other and overlap in a radial direction of the insulating hollow tube. Static charges are accumulated on the insulating hollow tube to form an electrostatic voltage across the conductive materials. The electrostatic eliminating circuit is electrically connected to the conductive materials and disconnected from a grounding terminal. The electrostatic eliminating circuit receives and eliminates the static charges through the conductive materials to reduce the electrostatic voltage.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: July 20, 2021
    Assignees: Midas Wei Trading Co., Ltd., Champion Elite Company Limited
    Inventors: Tao-Chin Wei, Yuan-Ping Liu, Yi Cheng Liu
  • Patent number: 11062445
    Abstract: A method of medical image registration is to be implemented by a computer device, and includes steps of: obtaining an ultrasound target image corresponding to an area of interest in an ultrasound image; for each of multiple computed tomography (CT) images, obtaining a CT candidate image that corresponds to an area of interest in the CT image; for each of the CT candidate images, calculating a similarity between the CT candidate image and the ultrasound target image; making one of the CT candidate images that corresponds to the greatest similarity among the CT candidate images serve as a CT target image; and performing image registration on the ultrasound target image and the CT target image.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: July 13, 2021
    Assignees: HIWIN TECHNOLOGIES CORP., CHINA MEDICAL UNIVERSITY
    Inventors: Bao-Yu Hsieh, Tzung-Chi Huang, Hsien-Te Chen, You-Min Chen, Yi-Cheng Liu
  • Publication number: 20210172722
    Abstract: The present invention provides a reflective condensing interferometer for focusing on a preset focus. The reflective condensing interferometer includes a concave mirror set, a convex mirror, a light splitting element, and a reflecting element. The concave mirror set has first and second concave surface portions which are oppositely located on two sides of a central axis passing through the preset focus and are concave on a surface facing the central axis and the preset focus. Light is preset to be incident in parallel to the central axis in use. The convex mirror is disposed between the concave mirror set and the preset focus on the central axis, and is convex away from the preset focus. The light splitting element vertically intersects with the central axis between the convex mirror and the preset focus. The reflecting element is disposed between the light splitting element and the convex mirror.
    Type: Application
    Filed: July 2, 2020
    Publication date: June 10, 2021
    Inventors: YI-CHENG LIU, CHUN-JEN WENG, TAI-SHAN LIAO, GUO-HAO LU