Patents by Inventor Ki Min SON
Ki Min SON 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: 11955085Abstract: An inverter circuit, a gate driver using the same, and a display device according to an embodiment are discussed. The inverter circuit can include a first transistor connected between a high potential voltage line and a first node; a second transistor having a gate connected to the first node and turned on according to a voltage of the first node to charge a second control node to a high potential voltage of the high potential voltage line; a third transistor having a gate connected to a first control node, a first electrode connected to the first node, and a second electrode connected to the second control node; and a fourth transistor having a gate connected to the first control node, a first electrode connected to the second control node, and a second electrode connected to a low potential voltage line.Type: GrantFiled: July 7, 2022Date of Patent: April 9, 2024Assignee: LG DISPLAY CO., LTD.Inventors: Seok Noh, Ki Min Son
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Patent number: 11946541Abstract: A method of controlling an EOP of a powertrain may include determining, by a controller electrically connected to the EOP, whether an oil sloshing phenomenon in which it is difficult for oil to return to a space where an oil intake port of the EOP is positioned may occur while a vehicle is running; and reducing, by the controller, the revolutions per minute (RPM) of the EOP by a predetermined reduced RPM when it is determined that the oil sloshing phenomenon may occur.Type: GrantFiled: August 20, 2021Date of Patent: April 2, 2024Assignees: Hyundai Motor Company, Kia CorporationInventors: Sung Sik Choi, Kyung Moo Lee, Seong Min Son, Ki Bum Kim, Se Hwan Jo, Bong Uk Bae
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Publication number: 20240105122Abstract: A pixel circuit comprises a first switch element comprising a first electrode to which an initialization voltage is applied, a gate electrode to which a initialization pulse is applied, and a second electrode connected to a second node; a second switch element comprising a first electrode connected to a third node or a fourth node, a gate electrode to which a sensing pulse is applied, and a second electrode to which a reference voltage is applied; a third switch element comprising a first electrode to which a data voltage is applied, a gate electrode to which a scan pulse is applied, and a second electrode connected to the second node; and a fourth switch element comprising a first electrode connected to the third node, a gate electrode to which a first emission control pulse is applied, and a second electrode connected to the fourth node.Type: ApplicationFiled: December 6, 2023Publication date: March 28, 2024Inventors: Ki Min SON, Chang Hee KIM, Seok NOH
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Publication number: 20240072182Abstract: An optical sensor includes a substrate, a photoelectric element disposed on the substrate and that includes a first electrode, an intermediate layer disposed on the first electrode, and a second electrode disposed on the intermediate layer, a barrier layer disposed on the second electrode, an insulating layer that covers the photoelectric element and the barrier layer, and a bias electrode disposed on the insulating layer and electrically connected to the second electrode. The barrier layer is spaced apart from the first electrode.Type: ApplicationFiled: November 6, 2023Publication date: February 29, 2024Inventors: KI JUNE LEE, JUNG HA SON, TAE SUNG KIM, JAE IK LIM, HYUN MIN CHO
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Patent number: 11887536Abstract: A pixel circuit comprises a first switch element comprising a first electrode to which an initialization voltage is applied, a gate electrode to which a initialization pulse is applied, and a second electrode connected to a second node; a second switch element comprising a first electrode connected to a third node or a fourth node, a gate electrode to which a sensing pulse is applied, and a second electrode to which a reference voltage is applied; a third switch element comprising a first electrode to which a data voltage is applied, a gate electrode to which a scan pulse is applied, and a second electrode connected to the second node; and a fourth switch element comprising a first electrode connected to the third node, a gate electrode to which a first emission control pulse is applied, and a second electrode connected to the fourth node.Type: GrantFiled: July 7, 2022Date of Patent: January 30, 2024Assignee: LG Display Co., Ltd.Inventors: Ki Min Son, Chang Hee Kim, Seok Noh
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Patent number: 11882742Abstract: A display panel and an electronic device including the same are disclosed. A circuit layer of the display panel includes at least a first transistor and a second transistor. The first transistor includes a first oxide semiconductor pattern, a gate electrode, a first electrode in contact with one side of the first oxide semiconductor pattern, a second electrode in contact with the other side of the first oxide semiconductor pattern, and a first-first metal pattern disposed on the substrate to overlap the first oxide semiconductor pattern.Type: GrantFiled: September 1, 2022Date of Patent: January 23, 2024Assignee: LG Display Co., Ltd.Inventors: Ki Min Son, Seok Noh, Ki Bok Park, Ye Won Hong
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Publication number: 20240013720Abstract: A pixel circuit of a display device includes a driving element comprising a first electrode connected to a first node to which a pixel driving voltage is applied, a first gate electrode connected to a second node, a second electrode connected to a third node, and a second gate electrode connected to a fourth node, and configured to supply an electric current to a light-emitting element; a first switch element configured to be turned on according to a gate-on voltage and supply a data voltage to the second node; a first capacitor connected between the second node and the third node; a second capacitor connected between the third node and the fourth node; and a third capacitor connected between the fourth node and the first node, or between the fourth node and a power line to which the pixel driving voltage is applied.Type: ApplicationFiled: September 18, 2023Publication date: January 11, 2024Applicant: LG DISPLAY CO., LTD.Inventors: Ki Min SON, Chang Hee KIM
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Patent number: 11854484Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit of the present disclosure includes: a driving element including a first electrode connected to a first node to which a pixel driving voltage is applied, a gate electrode connected to a second node, and a second electrode connected to a third node; a first switch element configured to supply a data voltage of pixel data to a fourth node in response to a scan pulse; a second switch element configured to supply an initialization voltage to the second node in response to a first initialization pulse; a third switch element configured to supply a reference voltage lower than the initialization voltage to the third node in response to a sensing pulse; and a fourth switch element configured to supply the reference voltage to the fourth node in response to a second initialization pulse.Type: GrantFiled: August 30, 2022Date of Patent: December 26, 2023Assignee: LG Display Co., Ltd.Inventors: Ki Min Son, Chang Hee Kim
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Patent number: 11830441Abstract: The present disclosure is directed to a gate driver circuit configured to prevent a light-emitting element of a display device from emitting light in a sensing mode. The gate driver circuit allows a plurality of scan lines of the display device being concurrently sensed by pre-charging a node of the gate driver circuit prior starting a sensing mode. The present disclosure provides the benefit of sensing a greater number of pixels of a display in a shorter time while also ensuring that a sufficient charge is provided by the pre-charged node for a plurality of pixels of the plurality of scan lines to be sensed concurrently.Type: GrantFiled: July 8, 2022Date of Patent: November 28, 2023Assignee: LG Display Co., Ltd.Inventors: Ki Won Son, Ki Min Son, Seok Noh
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Patent number: 11798476Abstract: A pixel circuit of a display device includes a driving element comprising a first electrode connected to a first node to which a pixel driving voltage is applied, a first gate electrode connected to a second node, a second electrode connected to a third node, and a second gate electrode connected to a fourth node, and configured to supply an electric current to a light-emitting element; a first switch element configured to be turned on according to a gate-on voltage and supply a data voltage to the second node; a first capacitor connected between the second node and the third node; a second capacitor connected between the third node and the fourth node; and a third capacitor connected between the fourth node and the first node, or between the fourth node and a power line to which the pixel driving voltage is applied.Type: GrantFiled: June 29, 2022Date of Patent: October 24, 2023Inventors: Ki Min Son, Chang Hee Kim
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Patent number: 11798489Abstract: A gate driver according to an embodiment and a display device using the same are discussed. The gate driver can output a gate signal to a pixel circuit having a driving element connected between a first power line and a first node, a light-emitting element connected between the first node and a second power line, and a switching element connected between the first node and a third power line and driven by the gate signal. The gate driver includes a first circuit unit to receive a carry signal from a previous signal transmission unit to charge or discharge a first control node and a second control node, and a second circuit unit having a first buffer transistor and a second buffer transistor configured to output the gate signal based on a first clock signal and a first low potential voltage according to potentials of the first and second control nodes.Type: GrantFiled: July 7, 2022Date of Patent: October 24, 2023Assignee: LG DISPLAY CO., LTD.Inventors: Ki Won Son, Seok Noh, Ki Min Son, Seo Jun Yeom
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Patent number: 11727878Abstract: A pixel circuit and a display device including the pixel circuit are discussed. The pixel circuit can include a driving element including a first electrode connected to a first node to which a pixel driving voltage is applied, a gate electrode connected to a second node, and a second electrode connected to a third node; a first switch element including a first electrode connected to the third node, a gate electrode to which a first light emission control pulse is applied, and a second electrode connected to a fourth node; a second switch element including a first electrode connected to the third node, a gate electrode to which a second light emission control pulse is applied, and a second electrode connected to a fifth node; and a light emitting device including an anode connected to the fifth node, and a cathode electrode to which a low potential power voltage is applied.Type: GrantFiled: August 23, 2022Date of Patent: August 15, 2023Assignee: LG DISPLAY CO., LTD.Inventors: Ki Min Son, Chang Hee Kim, Ki Bok Park
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Patent number: 11645981Abstract: Disclosed are a gate driver and a display panel including the same.Type: GrantFiled: July 7, 2022Date of Patent: May 9, 2023Assignee: LG Display Co., Ltd.Inventors: Seok Noh, Ki Min Son
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Publication number: 20230073753Abstract: A pixel circuit and a display device including the pixel circuit are discussed. The pixel circuit can include a driving element including a first electrode connected to a first node to which a pixel driving voltage is applied, a gate electrode connected to a second node, and a second electrode connected to a third node; a first switch element including a first electrode connected to the third node, a gate electrode to which a first light emission control pulse is applied, and a second electrode connected to a fourth node; a second switch element including a first electrode connected to the third node, a gate electrode to which a second light emission control pulse is applied, and a second electrode connected to a fifth node; and a light emitting device including an anode connected to the fifth node, and a cathode electrode to which a low potential power voltage is applied.Type: ApplicationFiled: August 23, 2022Publication date: March 9, 2023Applicant: LG Display Co., Ltd.Inventors: Ki Min SON, Chang Hee KIM, Ki Bok PARK
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Publication number: 20230070020Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit of the present disclosure includes: a driving element including a first electrode connected to a first node to which a pixel driving voltage is applied, a gate electrode connected to a second node, and a second electrode connected to a third node; a first switch element configured to supply a data voltage of pixel data to a fourth node in response to a scan pulse; a second switch element configured to supply an initialization voltage to the second node in response to a first initialization pulse; a third switch element configured to supply a reference voltage lower than the initialization voltage to the third node in response to a sensing pulse; and a fourth switch element configured to supply the reference voltage to the fourth node in response to a second initialization pulse.Type: ApplicationFiled: August 30, 2022Publication date: March 9, 2023Inventors: Ki Min SON, Chang Hee KIM
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Publication number: 20230071094Abstract: A display panel and an electronic device including the same are disclosed. A circuit layer of the display panel includes at least a first transistor and a second transistor. The first transistor includes a first oxide semiconductor pattern, a gate electrode, a first electrode in contact with one side of the first oxide semiconductor pattern, a second electrode in contact with the other side of the first oxide semiconductor pattern, and a first-first metal pattern disposed on the substrate to overlap the first oxide semiconductor pattern.Type: ApplicationFiled: September 1, 2022Publication date: March 9, 2023Inventors: Ki Min SON, Seok NOH, Ki Bok PARK, Ye Won HONG
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Publication number: 20230029234Abstract: A pixel circuit comprises a first switch element comprising a first electrode to which an initialization voltage is applied, a gate electrode to which a initialization pulse is applied, and a second electrode connected to a second node; a second switch element comprising a first electrode connected to a third node or a fourth node, a gate electrode to which a sensing pulse is applied, and a second electrode to which a reference voltage is applied; a third switch element comprising a first electrode to which a data voltage is applied, a gate electrode to which a scan pulse is applied, and a second electrode connected to the second node; and a fourth switch element comprising a first electrode connected to the third node, a gate electrode to which a first emission control pulse is applied, and a second electrode connected to the fourth node.Type: ApplicationFiled: July 7, 2022Publication date: January 26, 2023Inventors: Ki Min Son, Chang Hee Kim, Seok Noh
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Publication number: 20230008511Abstract: A gate driver according to an embodiment and a display device using the same are discussed. The gate driver can output a gate signal to a pixel circuit having a driving element connected between a first power line and a first node, a light-emitting element connected between the first node and a second power line, and a switching element connected between the first node and a third power line and driven by the gate signal. The gate driver includes a first circuit unit to receive a carry signal from a previous signal transmission unit to charge or discharge a first control node and a second control node, and a second circuit unit having a first buffer transistor and a second buffer transistor configured to output the gate signal based on a first clock signal and a first low potential voltage according to potentials of the first and second control nodes.Type: ApplicationFiled: July 7, 2022Publication date: January 12, 2023Applicant: LG Display Co., Ltd.Inventors: Ki Won SON, Seok NOH, Ki Min SON, Seo Jun YEOM
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Publication number: 20230008552Abstract: A pixel circuit and a display panel including the same are disclosed. The pixel circuit may include a driving element including a gate connected to a first node to which a data voltage is configured to be applied, a first electrode connected to a high-potential voltage line, and a second electrode connected to a second node; a first switch element connected between the second node and a third node; a second switch element connected between the second node and a fourth node; a third switch element connected between the fourth node and a reference voltage line; a first capacitor connected between the first node and the third node; and a second capacitor connected between the third node and the fourth node.Type: ApplicationFiled: June 30, 2022Publication date: January 12, 2023Applicant: LG Display Co., Ltd.Inventors: Chang Hee KIM, Ki Min SON
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Publication number: 20230009494Abstract: Disclosed are a gate driver and a display panel including the same.Type: ApplicationFiled: July 7, 2022Publication date: January 12, 2023Inventors: Seok NOH, Ki Min SON