Patents by Inventor Yu-Nan Tsai
Yu-Nan Tsai 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: 11980076Abstract: A tiled display device includes two panels and two cover layers respectively disposed on the two panels. The two cover layers include a contact region. A top portion and a bottom portion of the contact region have a height H. One of the two cover layers has a thickness Tn. One of the two panels has a distance Xn between an upper surface of the one of the two panels and the bottom portion of the contact region. The one of the two panels is corresponding to the one of the two cover layers. The height H, the thickness Tn and the distance Xn satisfy the equation: 0<H/(Xn+Tn)<0.8.Type: GrantFiled: December 24, 2020Date of Patent: May 7, 2024Assignee: InnoLux CorporationInventors: Ping-Hsun Tsai, Shih-Fu Liao, I-An Yao, Yu-Chun Hsu, Yung-Hsun Wu, Sheng-Nan Fan
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Patent number: 9316891Abstract: A micro-projection system applied to a portable electronic device, comprising an optical engine, a control module, and a flat cable. The optical engine projects an image. The control module provides at least one control signal to control the optical engine. The flat cable is detachably connected to the optical engine and the control module respectively. Wherein, the optical engine and the control module are configured in the portable electronic device separately, and the flat cable has a corresponding configuration state for connecting the optical engine to the control module.Type: GrantFiled: March 14, 2014Date of Patent: April 19, 2016Assignee: Lite-On Technology CorporationInventors: Cheng-Chung Hsu, Yu-Nan Tsai
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Patent number: 9268129Abstract: The invention provides a driving calibration apparatus of an electrostatic MEMS scanning mirror and a driving calibration method thereof The driving calibration method includes the following steps. Different reference voltages are sequentially set to drive a plane mirror of the electrostatic MEMS scanning mirror to swing. Projection positions on a projected surface corresponding to the reference voltages that the laser beam projects to are determined. A driving lookup table is established according to the reference voltages and the corresponding projection positions. Calibrated driving voltages corresponding to ideal projection positions are determined according to the driving lookup table. The pane mirror is driven to swing according to the calibrated driving voltages.Type: GrantFiled: March 17, 2014Date of Patent: February 23, 2016Assignee: Lite-On Technology CorporationInventors: Chia-Hao Hsu, Yu-Nan Tsai
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Patent number: 9213184Abstract: The present invention provides a micro projector device including a MEMS mirror, a laser source module, a detection module, and a control unit. The MEMS mirror has a first portion and a second portion, the first portion pivots to the second portion, and the first portion oscillates in relation to the second portion. The laser source module generates a laser light to a reflection plane of the first portion of the MEMS mirror. The detection module detects a capacitance value between the first portion and the second portion. The control unit determines the relative position between the first portion and the second portion according to the capacitance value, and provides image data to the laser source module according to the relative position. The reflection plane of the first portion is configured to reflect the laser light from the laser source module to a projection plane.Type: GrantFiled: January 3, 2014Date of Patent: December 15, 2015Assignee: Lite-On Technology CorporationInventors: Yu-Nan Tsai, Kevin K W Cheng, Chia-Hao Hsu, Chun-Lai Hsiao
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Patent number: 9201165Abstract: A detection circuit is provided. A detection signal corresponding to an equivalent capacitance value of a micro-electro-mechanical system is generated by an oscillator, and the equivalent capacitance value of the micro-electro-mechanical system varies with a location of the micro-electro-mechanical system.Type: GrantFiled: October 3, 2013Date of Patent: December 1, 2015Assignee: Lite-On Technology CorporationInventors: Yu-Nan Tsai, Kai-Wen Cheng, Chia-Hao Hsu, Chun-Lai Hsiao
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Publication number: 20150185468Abstract: The invention provides a driving calibration apparatus of an electrostatic MEMS scanning mirror and a driving calibration method thereof The driving calibration method includes the following steps. Different reference voltages are sequentially set to drive a plane mirror of the electrostatic MEMS scanning mirror to swing. Projection positions on a projected surface corresponding to the reference voltages that the laser beam projects to are determined. A driving lookup table is established according to the reference voltages and the corresponding projection positions. Calibrated driving voltages corresponding to ideal projection positions are determined according to the driving lookup table. The pane mirror is driven to swing according to the calibrated driving voltages.Type: ApplicationFiled: March 17, 2014Publication date: July 2, 2015Applicant: LITE-ON IT CORPORATIONInventors: Chia-Hao Hsu, Yu-Nan Tsai
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Publication number: 20150185051Abstract: An angle detection circuit of an electrostatic MEMS scanning mirror is provided. The angle detection circuit includes a capacitance sensing unit, a low-pass filter amplifier unit and an angle determination unit. The capacitance sensing unit is coupled to a mirror electrode of the electrostatic MEMS scanning minor for sensing an equivalent capacitance of the electrostatic MEMS scanning mirror and providing a capacitance sensing signal. The low-pass filter amplifier unit is coupled to the capacitance sensing unit for receiving the capacitance sensing signal and providing a position signal. The angle determination unit is coupled to the low-pass filter amplifier unit for receiving the position signal, and determines a rotation angle of the mirror electrode of the electrostatic MEMS scanning mirror to provide an angle signal.Type: ApplicationFiled: February 27, 2014Publication date: July 2, 2015Applicant: LITE-ON IT CORPORATIONInventor: Yu-Nan Tsai
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Publication number: 20150160538Abstract: A micro-projection system applied to a portable electronic device, comprising an optical engine, a control module, and a flat cable. The optical engine projects an image. The control module provides at least one control signal to control the optical engine. The flat cable is detachably connected to the optical engine and the control module respectively. Wherein, the optical engine and the control module are configured in the portable electronic device separately, and the flat cable has a corresponding configuration state for connecting the optical engine to the control module.Type: ApplicationFiled: March 14, 2014Publication date: June 11, 2015Applicant: LITE-ON IT CORPORATIONInventors: Cheng-Chung Hsu, Yu-Nan Tsai
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Publication number: 20150109588Abstract: The present invention provides a micro projector device including a MEMS mirror, a laser source module, a detection module, and a control unit. The MEMS mirror has a first portion and a second portion, the first portion pivots to the second portion, and the first portion oscillates in relation to the second portion. The laser source module generates a laser light to a reflection plane of the first portion of the MEMS mirror. The detection module detects a capacitance value between the first portion and the second portion. The control unit determines the relative position between the first portion and the second portion according to the capacitance value, and provides image data to the laser source module according to the relative position. The reflection plane of the first portion is configured to reflect the laser light from the laser source module to a projection plane.Type: ApplicationFiled: January 3, 2014Publication date: April 23, 2015Applicant: LITE-ON IT CorporationInventors: Yu-Nan TSAI, Kevin KW CHENG, Chia-Hao HSU, Chun-Lai HSIAO
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Publication number: 20150042365Abstract: A detection circuit is provided. A detection signal corresponding to an equivalent capacitance value of a micro-electro-mechanical system is generated by an oscillator, and the equivalent capacitance value of the micro-electro-mechanical system varies with a location of the micro-electro-mechanical system.Type: ApplicationFiled: October 3, 2013Publication date: February 12, 2015Applicant: LITE-ON IT CORPORATIONInventors: Yu-Nan Tsai, Kai-Wen Cheng, Chia-Hao Hsu, Chun-Lai Hsiao
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Patent number: 8926102Abstract: A safety protection method for a laser projection apparatus is provided. The laser scanning apparatus includes a laser source, a laser source driver, a scanning mirror, and a light-outputting port. The laser source driver is configured to drive the laser source to emit a laser beam. The safety protection method includes the following steps. Firstly, after the laser projection apparatus is powered on, an optical path of the laser beam is adjusted, so that the laser beam is not ejected out from the light-outputting port. Then, the laser source driver is disabled. Then, a judging step is performed to judge whether an intensity of the laser beam is higher than a threshold level. If the intensity of the laser beam is higher than the threshold level, the laser source is turned off.Type: GrantFiled: October 10, 2012Date of Patent: January 6, 2015Assignee: Lite-On Technology CorporationInventor: Yu-Nan Tsai
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Publication number: 20140063475Abstract: A safety protection method for a laser projection apparatus is provided. The laser scanning apparatus includes a laser source, a laser source driver, a scanning mirror, and a light-outputting port. The laser source driver is configured to drive the laser source to emit a laser beam. The safety protection method includes the following steps. Firstly, after the laser projection apparatus is powered on, an optical path of the laser beam is adjusted, so that the laser beam is not ejected out from the light-outputting port. Then, the laser source driver is disabled. Then, a judging step is performed to judge whether an intensity of the laser beam is higher than a threshold level. If the intensity of the laser beam is higher than the threshold level, the laser source is turned off.Type: ApplicationFiled: October 10, 2012Publication date: March 6, 2014Applicant: LITE-ON IT CORPORATIONInventor: Yu-Nan Tsai