Patents by Inventor Jun Seok Choi
Jun Seok 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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Publication number: 20240122025Abstract: A display device includes: a pixel defining layer defining openings arranged in first and second directions, the openings forming emission areas in which light emitting elements are disposed to emit light of different colors; a light blocking layer disposed on the pixel defining layer, and defining holes, each overlapping the opening and having a larger diameter than the opening; and color filters disposed on the light blocking layer to overlap the holes and overlap the emission areas. The opening has an opening interval, which is defined as a difference in diameter between the overlapping hole and the opening, in the openings, among homogeneous openings in which the light emitting elements for emitting light of the same color are disposed, the homogeneous openings adjacent in the first or second direction have different opening intervals, and among the homogeneous openings, openings having different opening intervals are at least three types.Type: ApplicationFiled: May 2, 2023Publication date: April 11, 2024Inventors: Chan Young KIM, Yeong Ho LEE, Ha Seok JEON, Jun Hee LEE, Choong Youl IM, Hyun Duck CHO, Kook Hyun CHOI
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Patent number: 11956980Abstract: Discussed is an organic light emitting device in which a light emitting layer includes a host and different kinds of dopants, the fluorescent dopant is formed of a material having energy level properties facilitating thermally activated delayed fluorescence (TADF), and thus energy is concentratedly transferred to the fluorescent dopant so as to increase luminous efficacy of a single color.Type: GrantFiled: December 24, 2020Date of Patent: April 9, 2024Assignee: LG DISPLAY CO., LTD.Inventors: Gyeong-Woo Kim, Hong-Seok Choi, Seung-Ryong Joung, Jun-Ho Lee, Yoon-Deok Han, Hee-Su Byeon
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Publication number: 20240103438Abstract: A method and a system thereof for producing a digital holographic screen based on multi-hogel printing are proposed. The system includes a light source unit including lasers, a dichroic mirror for RGB three color matching, mirrors, a beam splitter, and an optical shutter, an object beam unit including a spatial filter, a lens, and a mirror, a reference beam unit including a spatial filter, a lens, and a mirror, a diffuser fixing unit including a diffuser holder and a diffuser positioned between the object beam unit and a recording material and configured to scatter and diffuse the object beam, a photomask movement unit including a photomask holder, an XY-translation stage, and a photomask positioned between the reference beam unit and the recording medium and on which a grid-shaped on/off binary pattern is printed, and a controller configured to control the optical shutter and the XY-translation stage.Type: ApplicationFiled: November 11, 2021Publication date: March 28, 2024Inventors: Dong Hak SHIN, Yong Seok OH, Jae Hong KIM, Jong sung JUNG, Jae Woo PARK, Jun Yong CHOI
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Patent number: 11942635Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery using a positive electrode containing the positive electrode active material. More particularly, the present invention relates to a positive electrode active material that is able to solve a problem of increased resistance according to an increase in Ni content by forming a charge transport channel in a lithium composite oxide and a lithium secondary battery using a positive electrode containing the positive electrode active material.Type: GrantFiled: September 28, 2020Date of Patent: March 26, 2024Assignee: ECOPRO BM CO., LTD.Inventors: Moon Ho Choi, Jun Won Suh, Jin Kyeong Yun, Jung Han Lee, Mi Hye Yun, Seung Woo Choi, Gwang Seok Choe, Ye Ri Jang, Joong Ho Bae
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Patent number: 11939338Abstract: The present disclosure relates to a spiropyran composite having improved mechano-sensitivity, a method for manufacturing the same, and a chromic article including the same. Particularly, the spiropyran composite is obtained by bonding spiropyran covalently to a polymer, an inorganic material or a mixture thereof to form spiropyran composite, and impregnating the spiropyran composite with a sensitivity-enhancing agent for a suitable time through a wet infiltration process to form non-polar environment at the inner part of the spiropyran composite, to cause pre-stretch and to increase a change in color or fluorescence in response to force, stress or strain, thereby providing significantly improved mechano-sensitivity. In addition, a wet filtration process is used and no expensive equipment is required to simplify the process. Further, the process can be performed rapidly within several minutes to reduce the processing time.Type: GrantFiled: April 12, 2021Date of Patent: March 26, 2024Assignee: Korea Institute of Science and TechnologyInventors: Jaewoo Kim, Jun Young Jo, Yong Chae Jung, Yong Seok Choi, Han Gyeol Jang, Sungmin Jung, Dong Woo Kim
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Patent number: 11934063Abstract: A system may have a display that includes a plurality of light sources such as light-emitting diodes. The display may be an exterior display that is routinely operated in daytime conditions where ambient light levels are very high. To increase contrast in an exterior display, the display may include a sunlight blocking element. A static sunlight blocking element may include a louver film with asymmetric light blocking portions. The system may include an ambient light sensor that is configured to determine ambient light levels. Based on the detected ambient light level, control circuitry in the system may adjust one or more adjustable components in the display. The display may include an adjustable diffuser that has at least two states with different haze levels. The display may include an adjustable tint layer that has at least two states with different transmission levels.Type: GrantFiled: December 16, 2022Date of Patent: March 19, 2024Assignee: Apple Inc.Inventors: Tao Zhan, Yu P Sun, Rong Liu, Yong Seok Choi, Joshua A Spechler, Jun Qi, Victor H Yin
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Patent number: 11930670Abstract: A display device comprises a substrate; a driving transistor including a first active layer and a switching transistor including a second active layer, the first active layer and the second active layer being disposed on the substrate; a first gate insulating layer disposed on the first active layer of the driving transistor and the second active layer of the switching transistor; first and second gate electrodes disposed on the first gate insulating layer to overlap the first active layer of the driving transistor and the second active layer of the switching transistor, respectively; a first interlayer insulating layer disposed on the first gate electrode and the second gate electrode; and a second interlayer insulating layer disposed on the first interlayer insulating layer to overlap the first active layer without overlapping the second active layer in a plan view.Type: GrantFiled: May 6, 2021Date of Patent: March 12, 2024Assignees: Samsung Display Co., Ltd., Industry-University Cooperation Foundation Hanyang University ERICA CampusInventors: Sang Woo Sohn, Saeroonter Oh, Joon Seok Park, Young Joon Choi, Su Hyun Kim, Jun Hyung Lim
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Publication number: 20240063443Abstract: An embodiment battery module includes a plurality of battery cells provided as a pouch type, a plurality of cartridges, each of the cartridges holding the battery cells that are adjacent to each other and form a pair, a sensing block coupled to a lateral side of the plurality of cartridges to bind the plurality of cartridges to each other, the sensing block including a first connector configured to electrically connect the plurality of battery cells and a second connector configured to measure voltage of the plurality of battery cells, and a lateral cover coupled to an outward side of the sensing block to bind the sensing block and the plurality of cartridges to each other, the lateral cover including a first opening that exposes the first connector to an outside and a second opening that exposes the second connector to the outside.Type: ApplicationFiled: May 16, 2023Publication date: February 22, 2024Inventors: Hyunchang Kang, Jun Young Lim, Seoha Kang, Jun Seok Choi, Kyubin Chung, Ji Woong Han, Wan Choi, Houk Park, Jae Eun Kim
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Patent number: 11904709Abstract: A battery storage device for an electric vehicle includes a reinforcing panel that reduces impact energy and is disposed between a case and a battery module, whereby, when a car collision occurs, the battery module is protected from impact by the reinforcing panel, damage to the battery module is reduced, stability of the vehicle is secured, and manufacturing costs are reduced.Type: GrantFiled: June 2, 2020Date of Patent: February 20, 2024Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Jin Won Kim, Jun Seok Choi
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Publication number: 20230117229Abstract: A vehicle battery module includes battery cells and a plurality of cooling tubes, each provided to correspond to one of the battery cells and disposed either above or below, or both above and below the corresponding one of the battery cells. The battery module includes connectors each connecting one of the battery cells to a corresponding one of the cooling tubes so as to cool the battery cell through the cooling tube. A cartridge is configured to fix positions of the plurality of cooling tubes and a case is coupled to outer sides of the battery cells in a state in which the battery cells, the connectors, and the cartridge are assembled. A cooling pipe is connected to the plurality of cooling tubes so as to supply a cooling medium to each of the cooling tubes.Type: ApplicationFiled: July 25, 2022Publication date: April 20, 2023Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Jin Won Kim, Jun Seok Choi
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Patent number: 11498404Abstract: A battery case of a battery storage device is disposed on a vehicle floor, thereby securing an interior space. A battery module of the battery storage device can be cooled by using an interior air, thereby simplifying a cooling structure and saving a manufacturing cost. In addition, the battery storage device for an electric vehicle blocks noise generated by a cooling device and an electrical component from flowing into the interior, thereby preventing the occurrence of a passenger's discomfort feeling caused by the noise.Type: GrantFiled: June 5, 2020Date of Patent: November 15, 2022Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Jin Won Kim, Byung Su Kim, Jun Seok Choi
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Publication number: 20220359948Abstract: An inlet duct for a vehicle battery system includes an inlet part having an inlet hole open toward a vehicle interior, outlet parts divided from the inlet part and having outlet holes so as to supply air introduced to the inlet hole to the battery system via two separated paths, and a grill provided in the inlet part by having multiple ribs forming a grid to cover the inlet hole.Type: ApplicationFiled: July 26, 2022Publication date: November 10, 2022Inventors: Byung Su Kim, Jun Seok Choi, Jin Won Kim
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Patent number: 11431058Abstract: An inlet duct for a vehicle battery system includes an inlet part having an inlet hole open toward a vehicle interior, outlet parts divided from the inlet part and having outlet holes so as to supply air introduced to the inlet hole to the battery system via two separated paths, and a grill provided in the inlet part by having multiple ribs forming a grid to cover the inlet hole.Type: GrantFiled: May 18, 2020Date of Patent: August 30, 2022Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Byung Su Kim, Jun Seok Choi, Jin Won Kim
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Patent number: 11296371Abstract: A cell-tab-cooling type battery may include a plurality of battery cells respectively including tabs for electrical connection from each other, the respective tabs of the plurality of battery cells being aligned in one direction thereof; a plurality of bus bars connected in common to the tabs of the battery cells adjacent to each other among the plurality of battery cells to form an electrical connection between the battery cells; and a plurality of cooling capsules respectively including a coolant and being respectively bonded on the plurality of bus bars.Type: GrantFiled: November 21, 2019Date of Patent: April 5, 2022Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Jun Seok Choi, Byung Su Kim
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Patent number: 11283113Abstract: Disclosed is a cooling system for a battery of a vehicle and a method for cooling the battery. A heat absorption member is attached to a terminal of battery cell of the battery for absorbing heat. A controller of the vehicle computes heat generation based on the driver's input about the vehicle's destination, controls the battery to limit its current output after temperature.Type: GrantFiled: June 6, 2018Date of Patent: March 22, 2022Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Jeong Hun Seo, Jun Seok Choi, Yong Jae Kim, Hui Tae Yang
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Patent number: 11230321Abstract: A body of a vehicle equipped with a high-voltage battery is disclosed. The vehicle body includes a rear cross member mounted below the rear side of the front seat so as to be oriented in the lateral direction of the vehicle body, a front cross member mounted in front of the rear cross member so as to be oriented in the lateral direction of the vehicle body, a high-voltage battery mounted between the front cross member and the rear cross member, and a plurality of longitudinal support members mounted to support the bottom of the high-voltage battery and to connect the front cross member and the rear cross member to each other in the longitudinal direction of the vehicle body.Type: GrantFiled: May 20, 2020Date of Patent: January 25, 2022Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Se Hoon Jung, Ki Bong Park, Young Tae Yang, Jun Seok Choi, Min Gyu Park, Ji Ho Choi, Byung Su Kim, Hyo Seop Cha, Hyeon Su Jin, Dong Su Yang, Jin Won Kim
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Patent number: 11230177Abstract: A battery system of a vehicle is provided and includes a battery module assembly (BMA) formed by overlapping a plurality of battery modules along a first direction, a cooling fan installed to be aligned along the first direction on one side of the BMA and configured to discharge air cooling the BMA while passing therethrough, a low voltage battery installed to be aligned along the first direction on the other side of the BMA, a power relay assembly (PRA) aligned along a second direction perpendicular to the first direction and installed adjacent to the low voltage battery, and a battery management system (BMS) aligned along a third direction perpendicular to the first direction and the second direction and installed adjacent to the low voltage battery and the PRA.Type: GrantFiled: May 25, 2020Date of Patent: January 25, 2022Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Byung Su Kim, Jun Seok Choi, Jin Won Kim
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Publication number: 20210408612Abstract: A battery pack for a vehicle includes: a case having an air outlet and an air inlet; a battery having a plurality of battery cells and disposed in the case; a first temperature detector for detecting a temperature of the at least one battery cell; a second temperature detector for detecting a temperature of air to be discharged through the air outlet; and a fan inducing a flow of air suctioned through the air inlet to be discharged to the air outlet, and to rotate based on at least one of cell temperature information about the temperature of the at least one battery cell detected by the first temperature detector or discharge temperature information about a discharge air temperature detected by the second temperature detector.Type: ApplicationFiled: December 22, 2020Publication date: December 30, 2021Inventors: Jinwon Kim, Jun Seok Choi
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Patent number: 11205811Abstract: A cooling structure for a battery is provided. The cooling structure includes a plurality of stacked battery cells and tabs are formed on one side or both sides of electrode of each of the battery cells. Additionally, a cooling passage is configured to accommodate the tabs in an inner space thereof and the tabs operate as cooling fins in the cooling passage.Type: GrantFiled: December 7, 2018Date of Patent: December 21, 2021Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Jun-Seok Choi, Byung-Su Kim
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Publication number: 20210257694Abstract: Disclosed herein is a battery storage device for an electric vehicle, in which a battery casing is provided under a vehicle floor to secure an indoor space, and a battery module is cooled using indoor air, thus simplifying a cooling structure and reducing a manufacturing cost.Type: ApplicationFiled: August 3, 2020Publication date: August 19, 2021Inventors: Jin Won Kim, Ki Bong Park, Young Tae Yang, Se Hoon Jung, Jong Chan Kim, Jae Hwan Jung, Ji Ho Choi, Dong Su Yang, Jun Seok Choi