Patents by Inventor Yung-Chin Liu
Yung-Chin 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).
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Patent number: 11526978Abstract: An image processing method includes the steps of lighting up at least a part of light emitting units of a light emitting device; capturing a plurality of detection images corresponding to a plurality of sections of the light emitting device respectively, wherein each section includes a plurality of lighted-up light emitting units, each detection image includes a plurality of light spots respectively corresponding to the light emitting units of the associated section, and every two adjacent sections have an overlap area including at least one lighted-up light emitting unit; and stitching the detection images of the adjacent sections together by taking the light spots corresponding to at least one lighted-up light emitting unit of the overlap area as alignment reference spots, so that the light emitting statuses of all the light emitting units are presented by a single image.Type: GrantFiled: December 10, 2020Date of Patent: December 13, 2022Assignee: MPI CORPORATIONInventors: Ping-Ying Wu, Yung-Chin Liu
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Patent number: 11451714Abstract: A light emitting element detecting method includes the steps of generating a first control signal to open a shutter of an image capturing device which captures an image toward a light outlet of a light emitting element, generating a pulse signal to light up the light emitting element, generating a second control signal to close the shutter of the image capturing device and obtaining a detection image, and determining the light emitting status of the light outlet of the light emitting element according to the detection image. As a result, the present invention can accurately detect whether the light outlet of the light emitting element has the problem of emitting no light or flashing.Type: GrantFiled: December 10, 2020Date of Patent: September 20, 2022Assignee: MPI CORPORATIONInventors: Ping-Ying Wu, Yung-Chin Liu, Hsuan-Chiao Huang
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Patent number: 11346789Abstract: An optical inspection system includes a brightness inspection module for inspecting the brightness of a light emitting element, an integrated inspection module for inspecting the near field optical characteristic and the beam quality factor of the light emitting element, and a far field inspection module for inspecting the far field optical characteristic of the light emitting element. As a result, the optical inspection system is space-saving and capable of reducing the distance and time of the movement of the device under test.Type: GrantFiled: December 10, 2020Date of Patent: May 31, 2022Assignee: MPI CORPORATIONInventors: Ping-Ying Wu, Chiu-Wang Chen, Yung-Chin Liu
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Publication number: 20220005721Abstract: A method of aligning a wafer includes defining a reference direction for aligning the wafer; capturing an image of the wafer held on a chuck; using an identifying module to analyze a straight line on the image of the wafer; calculating an offset angle between the straight line and the reference direction; and calibrating the offset angle to align the straight line with the reference direction by way rotating the chuck.Type: ApplicationFiled: July 2, 2020Publication date: January 6, 2022Inventors: Yung-Chin LIU, Chien-Hung CHEN, Men-Han LEE
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Publication number: 20210183047Abstract: An image processing method includes the steps of lighting up at least a part of light emitting units of a light emitting device; capturing a plurality of detection images corresponding to a plurality of sections of the light emitting device respectively, wherein each section includes a plurality of lighted-up light emitting units, each detection image includes a plurality of light spots respectively corresponding to the light emitting units of the associated section, and every two adjacent sections have an overlap area including at least one lighted-up light emitting unit; and stitching the detection images of the adjacent sections together by taking the light spots corresponding to at least one lighted-up light emitting unit of the overlap area as alignment reference spots, so that the light emitting statuses of all the light emitting units are presented by a single image.Type: ApplicationFiled: December 10, 2020Publication date: June 17, 2021Applicant: MPI CORPORATIONInventors: PING-YING WU, YUNG-CHIN LIU
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Publication number: 20210181120Abstract: An optical inspection system includes a brightness inspection module for inspecting the brightness of a light emitting element, an integrated inspection module for inspecting the near field optical characteristic and the beam quality factor of the light emitting element, and a far field inspection module for inspecting the far field optical characteristic of the light emitting element. As a result, the optical inspection system is space-saving and capable of reducing the distance and time of the movement of the device under test.Type: ApplicationFiled: December 10, 2020Publication date: June 17, 2021Applicant: MPI CORPORATIONInventors: PING-YING WU, CHIU-WANG CHEN, YUNG-CHIN LIU
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Publication number: 20210185211Abstract: A light emitting element detecting method and a light emitting element detecting equipment adapted for the method are discloses. The method includes the steps of generating a first control signal to open a shutter of an image capturing device which captures an image toward a light outlet of a light emitting element, generating a pulse signal to light up the light emitting element, generating a second control signal to close the shutter of the image capturing device and obtaining a detection image, and determining the light emitting status of the light outlet of the light emitting element according to the detection image. As a result, the present invention can accurately detect whether the light outlet of the light emitting element has the problem of emitting no light or flashing.Type: ApplicationFiled: December 10, 2020Publication date: June 17, 2021Applicant: MPI CORPORATIONInventors: PING-YING WU, YUNG-CHIN LIU, HSUAN-CHIAO HUANG
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Patent number: 10678370Abstract: An aligning method for use in semiconductor inspection apparatus is provided. The semiconductor inspection apparatus includes a stage and a touch-control screen. The aligning method includes defining a reference direction; displaying an image of a device under test supported by the stage on the touch-control screen; detecting a first touch point and a second touch point occurred on the touch-control screen; defining a straight line according to the first touch point and the second touch point; calculating an included angle defined by the straight and the reference direction; and rotating the stage according to the included angle.Type: GrantFiled: August 17, 2018Date of Patent: June 9, 2020Assignee: MPI CORPORATIONInventors: Lin-Lin Chih, Guan-Jhih Liou, Chien-Hung Chen, Yung-Chin Liu
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Publication number: 20190171328Abstract: An aligning method for use in semiconductor inspection apparatus is provided. The semiconductor inspection apparatus includes a stage and a touch-control screen. The aligning method includes defining a reference direction; displaying an image of a device under test supported by the stage on the touch-control screen; detecting a first touch point and a second touch point occurred on the touch-control screen; defining a straight line according to the first touch point and the second touch point; calculating an included angle defined by the straight and the reference direction; and rotating the stage according to the included angle.Type: ApplicationFiled: August 17, 2018Publication date: June 6, 2019Applicant: MPI CorporationInventors: Lin-Lin Chih, Guan-Jhih Liou, Chien-Hung Chen, Yung-Chin Liu
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Patent number: 10048844Abstract: The instant disclosure provides an operating method of inspecting equipment, with the method applicable to semiconductor inspecting equipment having a movable element. The method includes: displaying a wafer graphic by a touch display; detecting a touch signal generated by the touch display; detecting the magnification of the wafer graphic when the touch signal is generated; and determining the moving speed of the movable element based on the magnification of the wafer graphic when the touch signal is generated. In addition, the moving direction of the movable element can be determined according to the touch signal. Through the instant disclosure, the operator can more intuitively operate each movable element of semiconductor inspecting equipment.Type: GrantFiled: January 15, 2016Date of Patent: August 14, 2018Assignee: MPI CORPORATIONInventors: Stojan Kanev, Yung-Chin Liu, Andrej Rumiantsev, Yao-Chuan Chiang
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Publication number: 20160210028Abstract: The instant disclosure provides an operating method of inspecting equipment, with the method applicable to semiconductor inspecting equipment having a movable element. The method includes: displaying a wafer graphic by a touch display; detecting a touch signal generated by the touch display; detecting the magnification of the wafer graphic when the touch signal is generated; and determining the moving speed of the movable element based on the magnification of the wafer graphic when the touch signal is generated. In addition, the moving direction of the movable element can be determined according to the touch signal. Through the instant disclosure, the operator can more intuitively operate each movable element of semiconductor inspecting equipment.Type: ApplicationFiled: January 15, 2016Publication date: July 21, 2016Inventors: Stojan Kanev, Yung-Chin Liu, Andrej Rumiantsev, YAO-CHUAN CHIANG
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Patent number: 7483097Abstract: An anti-Newton's ring backlight module and liquid crystal display using the same has a housing, a light guide plate, multiple optical films, an air passage and a adhesive layer. The housing has a top surface, where an internal cavity is formed, and a sidewall having an inner shoulder. The light guide plate is disposed in the internal cavity. The optical films are disposed on the light guide plate and are substantially smaller than the inner shoulder of the internal cavity to define an air passage between the optical films and the inner shoulder. The adhesive layer is bonded to the optical films and the inner shoulder and mainly has at least one through hole corresponding to the air passage and communicates with the air passage to allow air trapped between adjacent optical films to escape away. The release film simplifies the Liquid crystal panel module manufacturing process.Type: GrantFiled: January 29, 2007Date of Patent: January 27, 2009Assignee: Wintek CorporationInventors: Yu-Shan Tsai, Tsung-Yao Chen, Yung-Chin Liu
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Publication number: 20080180597Abstract: An anti-Newton's ring backlight module and liquid crystal display using the same has a housing, a light guide plate, multiple optical films, an air passage and a adhesive layer. The housing has a top surface, where an internal cavity is formed, and a sidewall having an inner shoulder. The light guide plate is disposed in the internal cavity. The optical films are disposed on the light guide plate and are substantially smaller than the inner shoulder of the internal cavity to define an air passage between the optical films and the inner shoulder. The adhesive layer is bonded to the optical films and the inner shoulder and mainly has at least one through hole corresponding to the air passage and communicates with the air passage to allow air trapped between adjacent optical films to escape away. The release film simplifies the Liquid crystal panel module manufacturing process.Type: ApplicationFiled: January 29, 2007Publication date: July 31, 2008Applicant: WINTEK CORPORATIONInventors: Yu-Shan TSAI, Tsung-Yao CHEN, Yung-Chin LIU
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Patent number: D922396Type: GrantFiled: June 6, 2018Date of Patent: June 15, 2021Assignee: MPI CORPORATIONInventors: Lin-Lin Chih, Guan-Jhih Liou, Chien-Hung Chen, Yung-Chin Liu