Patents by Inventor Chih-Liang Liao

Chih-Liang Liao 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: 20210288149
    Abstract: A method for forming a high-electron mobility transistor is disclosed. A substrate is provided. A buffer layer is formed over the substrate. A GaN channel layer is formed over the buffer layer. An AlGaN layer is formed over the GaN channel layer. A GaN source layer and a GaN drain layer are formed on the AlGaN layer within a source region and a drain region, respectively. A gate recess is formed in the AlGaN layer between the source region and the drain region. A p-GaN gate layer is then formed in and on the gate recess.
    Type: Application
    Filed: June 3, 2021
    Publication date: September 16, 2021
    Inventors: Shin-Chuan Huang, Chih-Tung Yeh, Chun-Ming Chang, Bo-Rong Chen, Wen-Jung Liao, Chun-Liang Hou
  • Publication number: 20210288150
    Abstract: A high-electron mobility transistor includes a substrate, a GaN channel layer over the substrate, an AlGaN layer over the GaN channel layer, a gate recess in the AlGaN layer, a source region and a drain region on opposite sides of the gate recess, a GaN source layer and a GaN drain layer grown on the AlGaN layer within the source region and the drain region, respectively, a p-GaN gate layer in and on the gate recess; and a re-grown AlGaN film on the AlGaN layer, on the GaN source layer and the GaN drain layer, and on interior surface of the gate recess.
    Type: Application
    Filed: June 3, 2021
    Publication date: September 16, 2021
    Inventors: Shin-Chuan Huang, Chih-Tung Yeh, Chun-Ming Chang, Bo-Rong Chen, Wen-Jung Liao, Chun-Liang Hou
  • Patent number: 11003888
    Abstract: The present disclosure discloses a fingerprint recognition device, which includes a luminescent display panel, a substrate, an image capturing module, a plurality of first prism arrays and a plurality of second prisms. The first prism arrays are disposed on the substrate and paralleled to each other, and each of the first prism arrays receives an incident ray from the luminescent display panel. The first prism arrays provide a first light guiding direction, and the first light guiding direction is orthogonal to the incident ray. The second prisms are disposed on the substrate, and the second prisms are corresponding to the first prism arrays respectively. Each of the second prisms has a light-emitting surface, and the light-emitting surface faces toward the image capturing module. The second prisms provide a second light guiding direction, and the second light guiding direction is perpendicular to the first light guiding direction.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: May 11, 2021
    Assignee: Chicony Electronics Co., Ltd.
    Inventor: Chih-Liang Liao
  • Publication number: 20200226349
    Abstract: The present disclosure discloses a fingerprint recognition device, which includes a luminescent display panel, a substrate, an image capturing module, a plurality of first prism arrays and a plurality of second prisms. The first prism arrays are disposed on the substrate and paralleled to each other, and each of the first prism arrays receives an incident ray from the luminescent display panel. The first prism arrays provide a first light guiding direction, and the first light guiding direction is orthogonal to the incident ray. The second prisms are disposed on the substrate, and the second prisms are corresponding to the first prism arrays respectively. Each of the second prisms has a light-emitting surface, and the light-emitting surface faces toward the image capturing module. The second prisms provide a second light guiding direction, and the second light guiding direction is perpendicular to the first light guiding direction.
    Type: Application
    Filed: October 23, 2019
    Publication date: July 16, 2020
    Inventor: CHIH-LIANG LIAO
  • Publication number: 20200192158
    Abstract: A fingerprint identification and uniform light structure is applied to an electronic device which includes a display screen. The fingerprint identification and uniform light structure includes a backlight plate, a plurality of light emitting units, a semi-transparent reflective filter and a fingerprint photography module. The backlight plate is located under the display screen, and the backlight plate includes a hole. The plurality of light emitting units are located on one side of the backlight plate, and the side is toward the display screen. The semi-transparent reflective filter is located in the hole. The fingerprint photography module is located under the filter.
    Type: Application
    Filed: September 6, 2019
    Publication date: June 18, 2020
    Inventors: CHENG-CHUNG CHANG, CHIH-LIANG LIAO
  • Patent number: 8040453
    Abstract: A pixel module comprising a first transistor, a second transistor, and a connection line is disclosed. The first transistor is coupled to a first gate line, a source line, and a first drain line. The second transistor is coupled to a second gate line, the source line, and a second drain line. The connection line overlaps and isolates the first and the second drain lines.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: October 18, 2011
    Assignee: Au Optronics Corp.
    Inventors: Yeong-Feng Wang, Chih-Liang Liao, Tien-Chun Huang, Yi-Wei Lee
  • Patent number: 8013965
    Abstract: A liquid crystal display device is disclosed, which comprises an upper substrate, a lower substrate, and a liquid crystal layer. The lower substrate has several pixel electrodes, metal lines, and switch elements thereon. Each switch element comprises a source electrode, a drain electrode, a gate electrode, and an opening between the source electrode and the drain electrode. A passivation layer covering the surface of the source electrode and the drain electrode forms two inclined planes separately on two sides. The two inclined planes face each other and are locating on a kink or step of the source electrode and drain electrode. The inclined planes also contact each other at the upper side of the opening. The inclinations of the inclined planes to the lower substrate are in a range from 5 to 50 degrees.
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: September 6, 2011
    Assignee: AU Optronics Corporation
    Inventors: Yeong-Feng Wang, Liang-Pin Yu, Chih-Liang Liao, Chien-Hung Chen, I-Hua Ho, Yi-Wei Lee
  • Publication number: 20110001916
    Abstract: A liquid crystal display device is disclosed, which comprises an upper substrate, a lower substrate, and a liquid crystal layer. The lower substrate has several pixel electrodes, metal lines, and switch elements thereon. Each switch element comprises a source electrode, a drain electrode, a gate electrode, and an opening between the source electrode and the drain electrode. A passivation layer covering the surface of the source electrode and the drain electrode forms two inclined planes separately on two sides. The two inclined planes face each other and are locating on a kink or step of the source electrode and drain electrode. The inclined planes also contact each other at the upper side of the opening. The inclinations of the inclined planes to the lower substrate are in a range from 5 to 50 degrees.
    Type: Application
    Filed: September 3, 2010
    Publication date: January 6, 2011
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Yeong-Feng Wang, Liang-Pin Yu, Chih-Liang Liao, Chien-Hung Chen, Ihua Ho, Yi-Wei Lee
  • Patent number: 7817219
    Abstract: A liquid crystal display device is disclosed, which comprises an upper substrate, a lower substrate, and a liquid crystal layer. The lower substrate has several pixel electrodes, metal lines, and switch elements thereon. Each switch element comprises a source electrode, a drain electrode, a gate electrode, and an opening between the source electrode and the drain electrode. A passivation layer covering the surface of the source electrode and the drain electrode forms two inclined planes separately on two sides. The two inclined planes face each other and are locating on a kink or step of the source electrode and drain electrode. The inclined planes also contact each other at the upper side of the opening. The inclinations of the inclined planes to the lower substrate are in a range from 5 to 50 degrees.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: October 19, 2010
    Assignee: AU Optronics Corporation
    Inventors: Yeong-Feng Wang, Liang-Pin Yu, Chih-Liang Liao, Chien-Hung Chen, I-Hua Ho, Yi-Wei Lee
  • Patent number: 7511795
    Abstract: An apparatus for detecting non-uniform cell gap in a liquid crystal display panel is disclosed, which comprises a first plate, an axle, and a cell gap detecting unit. A surface of the first plate has at least one holding mechanism for fixing at least one the liquid crystal display panel onto the first plate. The axle connects to the first plate and is used to rotate the first plate. The cell gap detecting unit detects the cell gap in the liquid crystal display panel.
    Type: Grant
    Filed: March 2, 2006
    Date of Patent: March 31, 2009
    Assignee: Au Optronics Corporation
    Inventors: Tai-Chi Huang, Chih-Liang Liao
  • Publication number: 20080158463
    Abstract: A pixel module comprising a first transistor, a second transistor, and a connection line is disclosed. The first transistor is coupled to a first gate line, a source line, and a first drain line. The second transistor is coupled to a second gate line, the source line, and a second drain line. The connection line overlaps and isolates the first and the second drain lines.
    Type: Application
    Filed: March 28, 2007
    Publication date: July 3, 2008
    Applicant: QUANTA DISPLAY INC.
    Inventors: Yeong-Feng Wang, Chih-Liang Liao, Tien-Chun Huang, Yi-Wei Lee
  • Publication number: 20070153152
    Abstract: A liquid crystal display device is disclosed, which comprises an upper substrate, a lower substrate, and a liquid crystal layer. The lower substrate has several pixel electrodes, metal lines, and switch elements thereon. Each switch element comprises a source electrode, a drain electrode, a gate electrode, and an opening between the source electrode and the drain electrode. A passivation layer covering the surface of the source electrode and the drain electrode forms two inclined planes separately on two sides. The two inclined planes face each other and are locating on a kink or step of the source electrode and drain electrode. The inclined planes also contact each other at the upper side of the opening. The inclinations of the inclined planes to the lower substrate are in a range from 5 to 50 degrees.
    Type: Application
    Filed: December 29, 2006
    Publication date: July 5, 2007
    Applicant: Quanta Display Inc.
    Inventors: Yeong-Feng Wang, Liang-Pin Yu, Chih-Liang Liao, Chien-Hung Chen, Ihua Ho, Yi-Wei Lee
  • Publication number: 20060220670
    Abstract: A method for measuring a cell gap of a liquid crystal panel, comprises providing a detection device, holding the liquid crystal panel vertically, heating the liquid crystal panel to a detection temperature between 50° C. to 70° C., and measuring the cell gap of the liquid crystal panel with the detection device.
    Type: Application
    Filed: March 6, 2006
    Publication date: October 5, 2006
    Inventors: Tai-Chi Huang, Chih-Liang Liao
  • Publication number: 20060203180
    Abstract: An apparatus for detecting non-uniform cell gap in a liquid crystal display panel is disclosed, which comprises a first plate, an axle, and a cell gap detecting unit. A surface of the first plate has at least one holding mechanism for fixing at least one the liquid crystal display panel onto the first plate. The axle connects to the first plate and is used to rotate the first plate. The cell gap detecting unit detects the cell gap in the liquid crystal display panel.
    Type: Application
    Filed: March 2, 2006
    Publication date: September 14, 2006
    Applicant: Quanta Display Inc.
    Inventors: Tai-Chi Huang, Chih-Liang Liao