Patents by Inventor In Chol Kim
In Chol Kim 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: 12283235Abstract: A pixel includes: a light-emitting element including an anode and a cathode, a first transistor including a first and a second electrode and a gate electrode connected with a first node, a third transistor connected between the second electrode of the first transistor and the first node and including a gate electrode connected with a first scan line, a sixth transistor connected between the second electrode of the first transistor and the anode and including a gate electrode connected with a first emission line, and a seventh transistor connected between the anode and an initialization voltage line and including a gate electrode connected with a second scan line. During an initialization period, the third, sixth, and seventh transistors are turned on such that an initialization voltage from the initialization voltage line is transferred to the gate electrode of the first transistor.Type: GrantFiled: May 11, 2024Date of Patent: April 22, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jin-Wook Yang, Yu-Chol Kim, Donggyu Lee, Jae-Hyeon Jeon
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Publication number: 20250092254Abstract: Disclosed a thermoplastic resin composition, and a molded article manufactured therefrom, the thermoplastic resin composition including, based on 100 parts by weight of a base resin including (A) 50 to 90 wt % of a polycarbonate resin; and (B) 10 to 50 wt % of a polysiloxane-polycarbonate copolymer resin, (C) 0.1 to 2 parts by weight of an aluminum-based pigment, 0.01 to 0.1 parts by weight of a mica-based pigment, or a combination thereof; and (D) 0.05 to 0.5 parts by weight of sodium phosphate monobasic dihydrate.Type: ApplicationFiled: December 23, 2022Publication date: March 20, 2025Inventors: Semi KIM, Kyoungju KIM, Keehae KWON, In-Chol KIM, Jungeun PARK
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Publication number: 20250075071Abstract: Provided is a molded product manufactured from a thermoplastic resin composition containing a polycarbonate-based polymer, a polysiloxane-polycarbonate copolymer, a polysiloxane-polyester copolymer, and a benzotriazole-based UV stabilizer having a molecular weight equal to or greater than about 1,800.Type: ApplicationFiled: March 20, 2024Publication date: March 6, 2025Inventors: Min Jin Choi, Seung Hwan Lee, Woo Chul Jung, Kyoung Sil Lee, Choon Ho Lee, In Chol Kim, Young Seung Kim, Yun Seok Bae, Hee Kyoung Ryoo
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Patent number: 12223914Abstract: A display device includes pixels including a light-emitting element, and an initialization transistor connected between an anode electrode of the light-emitting element and a first initialization power line to which a voltage of initialization power is supplied, and turned on when an initialization scan signal is supplied, and an initialization scan driver which supplies the initialization scan signal. The initial scan driver supplies an i-th (i is a natural number) initial scan signal to overlap an (i?1)-th initial scan signal, and supplies an (i+1)-th initial scan signal so as not to overlap the i-th initial scan signal, and the initialization scan signal is set to a gate-on voltage.Type: GrantFiled: June 6, 2023Date of Patent: February 11, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Seong Oh Yeom, Yu Chol Kim, Ji Hye Kim, Jin Wook Yang, Eui Myeong Cho, Ja Kyoung Jin
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Publication number: 20250022420Abstract: A display device includes a display panel including first pixels arranged in a first row and second pixels arranged in a second row. A viewing angle of the first pixels is different from a viewing angle of the second pixels. The first pixels and the second pixels are disposed in a privacy region of the display panel and a public region of the display panel which is different from the privacy region. The display device further includes a panel driver configured to receive privacy region position information indicating a position of the privacy region, and drive the display panel such that the first pixels emit light in the privacy region of the display panel and the second pixels emit light in the public region of the display panel.Type: ApplicationFiled: July 12, 2024Publication date: January 16, 2025Inventors: BYUNG KI CHUN, WOO-CHUL KIM, BOODONG KWAK, SOON-DONG KIM, YU-CHOL KIM, KWANGSUK SHIN, BYUNGKIL JEON
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Patent number: 12198617Abstract: A display device includes: a display panel including pixels having light-emitting elements; a timing control unit for variably changing the driving frame frequency of the display panel according to the input frame frequency of digital video data; and a data driving unit for outputting data voltages according to the digital video data, wherein the display panel operates at a first frame frequency for a first frame period and operates at a second frame frequency, which is lower than the first frame frequency, for a second frame period, the second frame period includes a data addressing period in which a data voltage corresponding to each of the pixels is applied to the pixels, and a blank period in which no data voltage is applied to each of the pixels, and the blank period includes a period of initializing a first electrode of a light-emitting element into an initialization voltage.Type: GrantFiled: August 23, 2021Date of Patent: January 14, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ji Hye Kim, Joon Chul Goh, Yu Chol Kim, Jin Wook Yang, Ja Kyoung Jin
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Publication number: 20250010862Abstract: When a towing vehicle is driven while towing a towed vehicle having driving force, a controller of the towed vehicle determines wheel slip of the towing vehicle based on driving information of the towing vehicle and determines wheel slip of the towed vehicle based on driving information of the towed vehicle, and upon determining that wheel slip of the towing vehicle or the towed vehicle has occurred or upon determining that wheel slip of each of the towing vehicle and the towed vehicle has occurred, control to increase or decrease driving force of the towed vehicle or control to change the driving force distribution ratio between left and right wheels of the towed vehicle is performed, whereby it is possible to improve driving stability and rough road escape performance of the towing vehicle and the towed vehicle.Type: ApplicationFiled: September 17, 2024Publication date: January 9, 2025Applicants: Hyundai Motor Company, Kia CorporationInventors: Woul Sun CHOI, Buhm Joo SUH, Yeong II CHOI, Seung Wook LEE, Seok Joon KIM, Tal Chol KIM, Hyuk Joon KWON
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Publication number: 20250006129Abstract: A display device comprises a display panel including a pixel, and a panel driver configured to receive input image data in a variable frame frequency in order to drive the display panel based on the input image data. A frame period for the display panel is divided into at least one scan period and at least one or more hold periods, and a time during which the pixel performs an anode initialization operation in each of the hold periods is longer than a time during which the pixel performs the anode initialization operation in the scan period.Type: ApplicationFiled: September 12, 2024Publication date: January 2, 2025Inventors: JIHYE KIM, YU-CHOL KIM, Seongoh Yeom, JAKYOUNG JIN
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Publication number: 20240404464Abstract: A display device including: a display panel including a pixel; and a panel driver configured to provide a reference voltage and a data voltage to the pixel, wherein the pixel emits light with a luminance corresponding to a difference between the reference voltage and the data voltage, and when the reference voltage changes, and a range of the data voltage is shifted by a voltage level that corresponds to the amount of change in the reference voltage.Type: ApplicationFiled: December 21, 2023Publication date: December 5, 2024Inventors: JIN-WOOK YANG, DONGGYU LEE, JAE-HYEON JEON, YU-CHOL KIM
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Patent number: 12157370Abstract: An embodiment hybrid powertrain for a vehicle includes a first input shaft configured to be interlocked with an engine, a second input shaft configured to be interlocked with a first motor and to be parallel to the first input shaft, a third input shaft configured to be interlocked with a second motor and to be parallel to the second input shaft, an output shaft mounted parallel to the third input shaft, a first selective mesh device configured to transmit power from the second input shaft to the output shaft at multiple different gear ratios, a second selective mesh device configured to transmit the power from the third input shaft to the output shaft at the multiple different gear ratios, and a third selective mesh device configured to transmit the power from the first input shaft to the second input shaft or the third input shaft.Type: GrantFiled: April 25, 2022Date of Patent: December 3, 2024Assignees: Hyundai Motor Company, Kia CorporationInventors: Hyuk Joon Kwon, Ho Rim Yang, Buhm Joo Suh, Woul Sun Choi, Seung Wook Lee, Seok Joon Kim, Tal Chol Kim, Yeong Il Choi
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Patent number: 12139000Abstract: A powertrain apparatus for an electric vehicle, includes a planetary gear set including three rotation elements, a first motor connected to a first rotation element of the planetary gear set, a differential engaged to a second rotation element of the planetary gear set, a second motor connected to a third rotation element of the planetary gear set, and a synchronizer configured to selectively connect or disconnect between a driveshaft coupled to one side of the differential and the second motor and to selectively connect or disconnect between the second rotation element of the planetary gear set and the third rotation element of the planetary gear set.Type: GrantFiled: March 2, 2023Date of Patent: November 12, 2024Assignees: Hyundai Motor Company, Kia CorporationInventors: Hyuk Joon Kwon, Buhm Joo Suh, Woul Sun Choi, Seung Wook Lee, Tal Chol Kim, Yeong Il Choi
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Patent number: 12122387Abstract: When a towing vehicle is driven while towing a towed vehicle having driving force, a controller of the towed vehicle determines wheel slip of the towing vehicle based on driving information of the towing vehicle and determines wheel slip of the towed vehicle based on driving information of the towed vehicle, and upon determining that wheel slip of the towing vehicle or the towed vehicle has occurred or upon determining that wheel slip of each of the towing vehicle and the towed vehicle has occurred, control to increase or decrease driving force of the towed vehicle or control to change the driving force distribution ratio between left and right wheels of the towed vehicle is performed, whereby it is possible to improve driving stability and rough road escape performance of the towing vehicle and the towed vehicle.Type: GrantFiled: July 27, 2023Date of Patent: October 22, 2024Assignees: Hyundai Motor Company, Kia CorporationInventors: Woul Sun Choi, Buhm Joo Suh, Yeong Il Choi, Seung Wook Lee, Seok Joon Kim, Tal Chol Kim, Hyuk Joon Kwon
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Patent number: 12094415Abstract: A display device comprises a display panel including a pixel, and a panel driver configured to receive input image data in a variable frame frequency in order to drive the display panel based on the input image data. A frame period for the display panel is divided into at least one scan period and at least one or more hold periods, and a time during which the pixel performs an anode initialization operation in each of the hold periods is longer than a time during which the pixel performs the anode initialization operation in the scan period.Type: GrantFiled: October 4, 2023Date of Patent: September 17, 2024Assignee: Samsung Display Co., Ltd.Inventors: Jihye Kim, Yu-Chol Kim, Seongoh Yeom, Jakyoung Jin
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Publication number: 20240296787Abstract: A pixel includes: a light-emitting element including an anode and a cathode, a first transistor including a first and a second electrode and a gate electrode connected with a first node, a third transistor connected between the second electrode of the first transistor and the first node and including a gate electrode connected with a first scan line, a sixth transistor connected between the second electrode of the first transistor and the anode and including a gate electrode connected with a first emission line, and a seventh transistor connected between the anode and an initialization voltage line and including a gate electrode connected with a second scan line. During an initialization period, the third, sixth, and seventh transistors are turned on such that an initialization voltage from the initialization voltage line is transferred to the gate electrode of the first transistor.Type: ApplicationFiled: May 11, 2024Publication date: September 5, 2024Inventors: JIN-WOOK YANG, YU-CHOL KIM, DONGGYU LEE, JAE-HYEON JEON
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Publication number: 20240278785Abstract: When a towing vehicle is driven while towing a towed vehicle having driving force, a controller of the towed vehicle determines wheel slip of the towing vehicle based on driving information of the towing vehicle and determines wheel slip of the towed vehicle based on driving information of the towed vehicle, and upon determining that wheel slip of the towing vehicle or the towed vehicle has occurred or upon determining that wheel slip of each of the towing vehicle and the towed vehicle has occurred, control to increase or decrease driving force of the towed vehicle or control to change the driving force distribution ratio between left and right wheels of the towed vehicle is performed, whereby it is possible to improve driving stability and rough road escape performance of the towing vehicle and the towed vehicle.Type: ApplicationFiled: July 27, 2023Publication date: August 22, 2024Applicants: Hyundai Motor Company, Kia CorporationInventors: Woul Sun CHOI, Buhm Joo Suh, Yeong II Choi, Seung Wook Lee, Seok Joon Kim, Tal Chol Kim, Hyuk Joon Kwon
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Publication number: 20240257720Abstract: A luminance compensation method of a display device includes a first luminance for a reference grayscale at a first operating frequency and a second luminance for the reference grayscale at a second operating frequency are measured. A first reference value is calculated based on the first luminance and the second luminance, a first duty ratio of the initialization control signal is changed into a second duty ratio depending on a comparison result of the first reference value and a threshold value After the first duty ratio is changed into the second duty ratio, a third luminance for the reference grayscale is measured, and a second reference value is calculated based on the first luminance and the third luminance. A final duty ratio corresponding to the threshold value is calculated depending on a comparison result of the second reference value and the threshold value.Type: ApplicationFiled: October 25, 2023Publication date: August 1, 2024Inventors: Seongoh YEOM, YU-CHOL KIM, JIHYE KIM, JIN-WOOK YANG, EUI-MYEONG CHO, JAKYOUNG JIN
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Publication number: 20240249661Abstract: A display device includes a display panel including a plurality of pixels and a panel driver that drives the display panel in a first mode where an operating frequency is fixed, and a second mode where the operating frequency is variable. Each of the plurality of pixels includes a light-emitting element and a pixel driving circuit connected to a first electrode of the light-emitting element. The panel driver includes a driving controller that determines whether the operating frequency corresponds to one of predetermined compensation frequencies in the second mode, and outputs a voltage control signal depending on the determination result, and a voltage generator that changes a voltage level of an anode initialization voltage applied to the first electrode in response to the voltage control signal.Type: ApplicationFiled: November 6, 2023Publication date: July 25, 2024Inventors: JAKYOUNG JIN, JIHYE KIM, YU-CHOL KIM, JIN-WOOK YANG, Seongoh YEOM, EUI-MYEONG CHO
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Patent number: 12033566Abstract: A display device includes: a pixel electrically connected to a data line, a write scan line, an initialization scan line, a compensation scan line, a transmission control line, and an emission control line; a first driving circuit configured to provide a write scan signal to the write scan line and a second driving circuit configured to receive a plurality of clock signals, each of which has a time duration of one unit horizontal period and provide an initialization scan signal, a compensation scan signal, a transmission control signal, and an emission control signal to the initialization scan line, the compensation scan line, the transmission control line, and the emission control line, respectively. Each of the initialization scan signal and the compensation scan signal has an activation interval of one unit horizontal periods or more.Type: GrantFiled: March 28, 2023Date of Patent: July 9, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jin-Wook Yang, Yu-Chol Kim, Sehyuk Park, Donggyu Lee, Jae-Hyeon Jeon
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Publication number: 20240212588Abstract: A pixel connected to a first scan line includes a light-emitting element including an anode and a cathode, a first transistor including a first electrode, a second electrode, and a gate electrode connected to a first node, a first capacitor connected between the first node and a second node, a second transistor connected between the second electrode of the first transistor and the first node including a gate electrode connected to the first scan line, a third transistor including a first electrode, a second electrode connected to the second node, and a gate electrode connected to the first scan line, and a fourth transistor including a first electrode connected to a first driving voltage line, a second electrode connected to the first electrode of the first transistor, and a gate electrode connected to the first scan line.Type: ApplicationFiled: March 6, 2024Publication date: June 27, 2024Inventors: JIN-WOOK YANG, YU-CHOL KIM, DONGGYU LEE, JAEKEUN LIM, JAE-HYEON JEON
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Patent number: 12020652Abstract: A display device includes: a pixel connected to a first scan line, a second scan line, and a data line, and including a light emitting element and a storage capacitor; and a timing controller configured to drive the pixel in a normal mode in which a driving frequency is maintained constant or a frequency variable mode according to a variable frequency signal supplied from outside, wherein in the normal mode, a first electrode voltage of the light emitting element is initialized in response to a data voltage being supplied to the storage capacitor, and wherein in the frequency variable mode, the first electrode voltage of the light emitting element is not initialized in response to the data voltage being supplied to the storage capacitor.Type: GrantFiled: July 1, 2021Date of Patent: June 25, 2024Assignee: Samsung Display Co., Ltd.Inventors: Ja Kyoung Jin, Yu Chol Kim, Ji Hye Kim, Jin Wook Yang, Seong Oh Yeom