Patents by Inventor Hyun Young Choi
Hyun Young Choi 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: 11380233Abstract: A display device includes: a plurality of pixels connected to scan lines, emission control lines, data lines, and a power line; a scan driver configured to supply a scan signal to the scan lines; and an emission driver configured to supply an emission control signal to the emission control lines, wherein a voltage of a first power supplied to the power line during an inspection period has a pulse form alternating between a first level and a second level that is lower than the first level, and the display device is configured to maintain the voltage of the first power at a third level.Type: GrantFiled: March 10, 2021Date of Patent: July 5, 2022Assignee: Samsung Display Co., Ltd.Inventors: Ji Young Lee, Yong Bin Kim, Gun Woo Yang, Hyun Young Choi
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Publication number: 20220120330Abstract: The present disclosure relates to a stand having an improved structure to stably support a display module, and a display apparatus including the same. The stand is configured to support a display module. The stand includes a base assembly including a first base and a second base coupled to the first base, a support bar extending in a height direction of the stand to be coupled to the base assembly, a first vibration damper installed on the first base, the first vibration damper including a moving member exposed to the outside of the first base and provided to move in the height direction of the stand, and a second vibration damper installed on the second base, the second vibration damper including a rotation member provided to exposed to the outside of the second base and move in the height direction of the stand and rotatably provided to impart mobility to the stand.Type: ApplicationFiled: March 21, 2019Publication date: April 21, 2022Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyun Young CHOI, Ji Su KIM, Dae Sik YOON, Woo Sung IN, Hyun Jun JUNG, Dae Su CHOI
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Patent number: 11282421Abstract: A method of detecting a pixel defect for detecting a defect of a pixel including first to fourth transistors, connected to a data line, and receiving a scan signal and an initialization control signal includes turning on the first through fourth transistors by changing the scan signal and the initialization control signal to have a turn-on voltage level in an inspection period, detecting an inspecting current flowing in a path corresponding to the first through fourth transistors using a current detector that is connected to the data line, determining that a threshold voltage of the second transistor is within a normal range when the inspecting current is within a reference range, and determining that the threshold voltage of the second transistor is out of the normal range when the inspecting current is out of the reference range.Type: GrantFiled: March 13, 2020Date of Patent: March 22, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Gunwoo Yang, Yongbin Kim, Hyun Young Choi
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Publication number: 20210335167Abstract: A display device includes: a plurality of pixels connected to scan lines, emission control lines, data lines, and a power line; a scan driver configured to supply a scan signal to the scan lines; and an emission driver configured to supply an emission control signal to the emission control lines, wherein a voltage of a first power supplied to the power line during an inspection period has a pulse form alternating between a first level and a second level that is lower than the first level, and the display device is configured to maintain the voltage of the first power at a third level.Type: ApplicationFiled: March 10, 2021Publication date: October 28, 2021Inventors: Ji Young LEE, Yong Bin KIM, Gun Woo YANG, Hyun Young CHOI
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Publication number: 20200402432Abstract: A method of detecting a pixel defect for detecting a defect of a pixel including first to fourth transistors, connected to a data line, and receiving a scan signal and an initialization control signal includes turning on the first through fourth transistors by changing the scan signal and the initialization control signal to have a turn-on voltage level in an inspection period, detecting an inspecting current flowing in a path corresponding to the first through fourth transistors using a current detector that is connected to the data line, determining that a threshold voltage of the second transistor is within a normal range when the inspecting current is within a reference range, and determining that the threshold voltage of the second transistor is out of the normal range when the inspecting current is out of the reference range.Type: ApplicationFiled: March 13, 2020Publication date: December 24, 2020Inventors: GUNWOO YANG, YONGBIN KIM, HYUN YOUNG CHOI
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Patent number: 10714563Abstract: The present disclosure relates to a display device. The display device according to an exemplary embodiment includes a display area comprising a plurality of pixels, a peripheral area that is disposed outside the display area, and a wiring portion in the peripheral area. The wiring portion includes a plurality of signal lines that are adjacent to each other and are arranged along a first direction and each extends in a second direction that is different from the first direction. The plurality of signal lines are arranged in an order of average voltages of signals respectively transmitted by the plurality of signal lines during one frame.Type: GrantFiled: October 30, 2018Date of Patent: July 14, 2020Assignee: Samsung Display Co., Ltd.Inventors: Dong-Hyun Lee, Hyeon-Do Park, Ha Gyeong Song, Hyun Young Choi
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Publication number: 20200175226Abstract: Provided is an incorrect triple detection system including a triple selector configured to select a target triple (subject, type, object) in a knowledge base, a sampler configured to create a sentence model by connecting object triples sharing entities included in the target triple, a model builder configured to embed the sentence model into a vector space to create a training entity vector and build an embedding model, and an incorrect triple detector configured to detect an incorrect triple by inputting a test triple into the embedding model.Type: ApplicationFiled: November 26, 2019Publication date: June 4, 2020Inventors: Young Tack PARK, Wan Gon LEE, Jagvaral BATSELEM, Hyun Young CHOI, Ji Houn HONG
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Publication number: 20190198598Abstract: The present disclosure relates to a display device. The display device according to an exemplary embodiment includes a display area comprising a plurality of pixels, a peripheral area that is disposed outside the display area, and a wiring portion in the peripheral area. The wiring portion includes a plurality of signal lines that are adjacent to each other and are arranged along a first direction and each extends in a second direction that is different from the first direction. The plurality of signal lines are arranged in an order of average voltages of signals respectively transmitted by the plurality of signal lines during one frame.Type: ApplicationFiled: October 30, 2018Publication date: June 27, 2019Inventors: Dong-Hyun LEE, Hyeon-Do PARK, Ha Gyeong SONG, Hyun Young CHOI
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Publication number: 20190087724Abstract: Disclosed are a method of operating a knowledgebase and a server using the same. The method of operating a knowledgebase may include: (a) receiving triple data sets as input; (b) forming at least one data cluster set by classifying the triple data sets according to relation based on semantic information of the knowledgebase; and (c) learning each relation model by inputting the data cluster set into a neural tensor network.Type: ApplicationFiled: December 28, 2017Publication date: March 21, 2019Inventors: Young Tack PARK, Wan Gon LEE, Batselem JAGVARAL, Hyun Young CHOI, Ji Houn HONG
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Patent number: 10222664Abstract: A liquid crystal display device includes a substrate, a first coupling electrode disposed on the substrate, a first insulating layer disposed on the first coupling electrode, a second coupling electrode disposed on the first insulating layer and capacitively coupled to the first coupling electrode, a second insulating layer disposed on the second coupling electrode, and a pixel electrode including first and second sub-pixel electrodes, which are disposed on the second insulating layer and are electrically insulated from each other, where the first sub-pixel electrode is electrically connected to the first coupling electrode via a first contact hole, which is defined in the first and second insulating layers, and the second sub-pixel electrode is electrically connected to the second coupling electrode via a second contact hole which is defined in the second insulating layer.Type: GrantFiled: November 8, 2016Date of Patent: March 5, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Il Joo Kim, Cheol Gon Lee, Gun Woo Yang, Hyun Young Choi, Tae Ho Kang, Chol Ho Kim, Hae Ryeong Park, Dong Il Yoo, Yong Woo Lee, Mee Hye Jung, Joong Gun Chong
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Publication number: 20170322468Abstract: A liquid crystal display device includes a substrate, a first coupling electrode disposed on the substrate, a first insulating layer disposed on the first coupling electrode, a second coupling electrode disposed on the first insulating layer and capacitively coupled to the first coupling electrode, a second insulating layer disposed on the second coupling electrode, and a pixel electrode including first and second sub-pixel electrodes, which are disposed on the second insulating layer and are electrically insulated from each other, where the first sub-pixel electrode is electrically connected to the first coupling electrode via a first contact hole, which is defined in the first and second insulating layers, and the second sub-pixel electrode is electrically connected to the second coupling electrode via a second contact hole which is defined in the second insulating layer.Type: ApplicationFiled: November 8, 2016Publication date: November 9, 2017Inventors: Il Joo KIM, Cheol Gon LEE, Gun Woo YANG, Hyun Young CHOI, Tae Ho KANG, Chol Ho KIM, Hae Ryeong PARK, Dong Il YOO, Yong Woo LEE, Mee Hye JUNG, Joong Gun CHONG
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Patent number: 9177704Abstract: The present invention is directed to a potentiometer having enhanced reliability and durability, capable of being unlimitedly used in a high-temperature environment inside a flying object (air vehicle). Said potentiometer comprises: a consecutive type potentiometer having a structure that a resistor is formed of a material having an excellent stability in a high-temperature environment, and having an excellent surface hardness so as to have a high resistance to damages; and a discrete type potentiometer having a structure that a resistor is protected by a passivation layer, and through holes are formed at the passivation layer for electrical connection with the outside, and the through holes are filled with a conductive material.Type: GrantFiled: May 1, 2013Date of Patent: November 3, 2015Assignee: AGENCY FOR DEFENSE DEVELOPMENTInventors: Yong Dae Kim, Hyun Young Choi
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Publication number: 20130314203Abstract: The present invention is directed to a potentiometer having enhanced reliability and durability, capable of being unlimitedly used in a high-temperature environment inside a flying object (air vehicle). Said potentiometer comprises: a consecutive type potentiometer having a structure that a resistor is formed of a material having an excellent stability in a high-temperature environment, and having an excellent surface hardness so as to have a high resistance to damages; and a discrete type potentiometer having a structure that a resistor is protected by a passivation layer, and through holes are formed at the passivation layer for electrical connection with the outside, and the through holes are filled with a conductive material.Type: ApplicationFiled: May 1, 2013Publication date: November 28, 2013Applicant: AGENCY FOR DEFENSE DEVELOPMENTInventors: Yong Dae Kim, Hyun Young Choi
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Patent number: 6957665Abstract: Disclosed is a flow force compensating spool valve having a flow force compensating protrusion ring at a supply channel of a sleeve on an outer circumference portion of a spool rod, and a hydraulic valve, a pneumatic valve, a three-way valve, and a four-way valve using the spool valve, in which the flow force can be compensated by a simple structure change of the spool without changing a structure of the sleeve.Type: GrantFiled: February 20, 2003Date of Patent: October 25, 2005Assignees: Agency for Defense Development, Hanwha CorporationInventors: Weon Gyu Shin, Hyun Young Choi, Hyo Pil Shin, Eui Joon Moon, Jong Yeol Kim
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Patent number: 6918852Abstract: A speed change gear for an automatic transmission includes: an input portion; an output portion; and a plurality of planetary gear sets including a compound planetary gear set. The plurality of the planetary gear sets has a clutch and a brake. The clutch includes a first clutch and a second clutch for connecting and disconnecting the reduced rotation from a speed reduction planetary gear set to the compound planetary gear set, and a third clutch which is a direct clutch for outputting the input rotation at a constant speed to the compound planetary gear set. The third clutch is disposed radially outward relative to a first ring gear of the speed reduction planetary gear set. The first ring gear has an outer periphery which is provided with a clutch hub. The clutch hub constitutes the direct clutch and is an input member to the third clutch.Type: GrantFiled: July 14, 2003Date of Patent: July 19, 2005Assignee: Jatco LTDInventor: Hyun Young Choi
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Publication number: 20040014549Abstract: A speed change gear for an automatic transmission includes: an input portion; an output portion; and a plurality of planetary gear sets including a compound planetary gear set. The plurality of the planetary gear sets has a clutch and a brake. The clutch includes a first clutch and a second clutch for connecting and disconnecting the reduced rotation from a speed reduction planetary gear set to the compound planetary gear set, and a third clutch which is a direct clutch for outputting the input rotation at a constant speed to the compound planetary gear set. The third clutch is disposed radially outward relative to a first ring gear of the speed reduction planetary gear set. The first ring gear has an outer periphery which is provided with a clutch hub. The clutch hub constitutes the direct clutch and is an input member to the third clutch.Type: ApplicationFiled: July 14, 2003Publication date: January 22, 2004Applicant: JATCO LtdInventor: Hyun Young Choi
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Publication number: 20040000347Abstract: Disclosed is a flow force compensating spool valve having a flow force compensating protrusion ring at a supply channel of a sleeve on an outer circumference portion of a spool rod, and a hydraulic valve, a pneumatic valve, a three-way valve, and a four-way valve using the spool valve, in which the flow force can be compensated by a simple structure change of the spool without changing a structure of the sleeve.Type: ApplicationFiled: February 20, 2003Publication date: January 1, 2004Applicants: Agency for Defense Development, Hanwha CorporationInventors: Weon Gyu Shin, Hyun Young Choi, Hyo Pil Shin, Eui Joon Moon, Jong Yeol Kim
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Patent number: 5830100Abstract: An automatic transmission having five forward speed ranges and a single reverse speed range wherein a fluid torque converter connected to a crankshaft of an engine increases the rotary torque of the engine and transferring the increased rotary torque to a planetary gear unit installed next to the fluid torque converter. The planetary gear unit includes: a first, a second and a third planetary gear set; and changes the rotary torque, rotary speed, and rotational direction of the power transferred from the fluid torque converter. Friction elements connect and lock the planetary gear sets to the driven shafts, and are controlled with a hydraulic control system. The hydraulic control system controls the fluid path by a shift lever, according to the speed and load of the vehicle.Type: GrantFiled: November 18, 1996Date of Patent: November 3, 1998Inventor: Hyun-Young Choi