Abstract: Disclosed herein are a retardation film for IPS mode, a polarizing plate including the same, and a liquid crystal display including the same. The retardation film for IPS mode has an out-of-plane retardation at a wavelength of 450 nm (Rth (450) of about ?80 nm to 0 nm, an out-of-plane retardation at a wavelength of 550 nm (Rth (550) of about ?60 nm to 10 nm, an out-of-plane retardation at a wavelength of 650 nm (Rth (650) of about ?60 nm to 10 nm, and an in-plane retardation (Re) at a wavelength of 550 nm of about 0 nm to 10 nm.
Type:
Grant
Filed:
November 16, 2018
Date of Patent:
June 27, 2023
Assignee:
Samsung SDI Co., Ltd.
Inventors:
Sang Hum Lee, Kyung Il Sul, Jung Hun You
Abstract: Disclosed is a rechargeable lithium battery including a positive electrode including a positive active material; a negative electrode including a negative active material; an electrolyte solution including a lithium salt and a non-aqueous organic solvent; and a separator between the positive and the negative electrodes, the separator including a porous substrate and a coating layer positioned on at least one side of the porous substrate. The negative active material includes a Si-based material; the non-aqueous organic solvent includes cyclic carbonate including ethylene carbonate, propylene carbonate, or combinations thereof, the cyclic carbonate being included in an amount of about 20 volume % to about 60 volume % based on the total amount of the non-aqueous organic solvent; and the coating layer includes a fluorine-based polymer, an inorganic compound, or combinations thereof. The rechargeable lithium battery has improved cycle-life and high temperature storage characteristics.
Type:
Grant
Filed:
March 5, 2021
Date of Patent:
June 27, 2023
Assignee:
Samsung SDI Co., Ltd.
Inventors:
Kwang-Jo Cheong, Yong-Beom Lee, Myung-Ro Lee, Su-Min Lee
Abstract: The present invention relates to a composition for an organic optoelectronic diode, comprising a first compound for an organic optoelectronic diode; and a second compound for an organic optoelectronic diode, and an organic optoelectronic diode and a display device including the same.
Type:
Grant
Filed:
July 4, 2018
Date of Patent:
June 27, 2023
Assignee:
SAMSUNG SDI CO., LTD.
Inventors:
Dong Wan Ryu, Sangshin Lee, Seungjae Lee, Sung-Hyun Jung, Eun Sun Yu, Dalho Huh
Abstract: Disclosed is a secondary battery comprising: an electrode assembly in which a first electrode plate, a second electrode plate, and a separator are rolled up; and a support plate which is coupled to one end surface of the electrode assembly where the rolled first electrode plate, second electrode plate, and separator are exposed, so as to support the electrode assembly. A secondary battery according to an embodiment of the present invention comprises a support plate coupled to the lower end of an electrode assembly, whereby, when the secondary battery falls, movements of the electrode assembly can be prevented, and deformation of the electrode assembly due to an external impact can be suppressed.
Abstract: The present invention relates to a lithium secondary battery comprising: a current collector comprising a structure in a fabric form in which fiber bundles are cross-woven, wherein each of the fiber bundles is formed of sets of fiber yarns and each of the fiber yarns includes a polymer fiber and a metal layer surrounding the polymer fiber; and an electrode including an active material layer disposed on at least one surface of the current collector.
Type:
Grant
Filed:
March 26, 2018
Date of Patent:
June 27, 2023
Assignee:
SAMSUNG SDI CO., LTD.
Inventors:
Hyeri Eom, Seungjae Lee, Sol Choi, Da-Un Han
Abstract: A processor-implemented battery management method includes: estimating state information of a plurality of battery cells in a battery pack using a first battery state estimation model; determining whether state information of at least one of the plurality of battery cells is to be estimated using a second battery state estimation model; and estimating the state information of the at least one battery cell using the second model, in response to a result of the determining being that the state information of the at least one battery cell is to be estimated using the second model.
Abstract: Provided are a polarizing plate and a display device comprising the same, the polarizing plate comprising: a polarizing film; a polarizing film protection film arranged on at least one surface of the polarizing film; an adhesive layer interposed between the polarizing film and the polarizing film protection film; and a printing layer impregnated in the adhesive layer and formed on at least part of the edge of the adhesive layer, wherein a curve ensuring portion is formed on at least one surface of the printing layer.
Type:
Grant
Filed:
November 8, 2017
Date of Patent:
June 20, 2023
Assignee:
Samsung SDI Co., Ltd.
Inventors:
Jin Woo Kim, Han Su Kim, Kwang Ho Shin, Dong Yoon Shin
Abstract: A photosensitive resin composition, a photosensitive resin layer, and a color filter, the composition including a colorant including a first green dye having a core-shell structure and a second green dye in a weight ratio of about 1:9 to about 7:3; a binder resin; a photopolymerizable compound; a photopolymerization initiator; and a solvent.
Type:
Grant
Filed:
August 7, 2019
Date of Patent:
June 20, 2023
Assignee:
SAMSUNG SDI CO., LTD.
Inventors:
Jihye Kwon, Sunghoon Park, Jungsun Lee, Juho Jung, Gyuseok Han
Abstract: A polarizing plate and an optical display apparatus are provided. A polarizing plate includes: a polarizer; and a first retardation layer and a second retardation layer sequentially stacked on a lower surface of the polarizer, and the first retardation layer has a short wavelength dispersion of about 1 to about 1.03, a long wavelength dispersion of about 0.98 to about 1, and an in-plane retardation of about 180 nm to about 220 nm at a wavelength of 550 nm, the second retardation layer has a short wavelength dispersion of about 1 to about 1.1, a long wavelength dispersion of about 0.96 to about 1, and an in-plane retardation Re of about 70 nm to about 120 nm at a wavelength of 550 nm, and a ratio of out-of-plane retardation of the second retardation layer at a wavelength of 550 nm to thickness thereof is about ?33 nm/?m to about ?15 nm/?m.
Type:
Grant
Filed:
July 28, 2020
Date of Patent:
June 20, 2023
Assignee:
Samsung SDI Co., Ltd.
Inventors:
Jun Mo Koo, Bong Choon Kim, Dong Yoon Shin, Jung Hun You, Sang Hum Lee
Abstract: An anode active material, an anode including the anode active material; and a lithium secondary battery including the anode, the anode active material including a core including a carbonaceous material; and a polycyclic compound on a surface of the core, the polycyclic compound being represented by Formula 1:
Type:
Grant
Filed:
April 16, 2020
Date of Patent:
June 20, 2023
Assignees:
SAMSUNG SDI CO., LTD., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
Inventors:
Jungmin Lee, Jangwook Choi, Yunshik Cho, Jaemin Kim
Abstract: A sulfide solid electrolyte includes: an ionic conductor including a PS43? unit, a P2S64? unit, and a P2S74? unit; and a lithium compound containing a halogen element, wherein a molar ratio of the P2S64? unit to the PS43? unit is about 1:1 to about 5:1, and a molar amount of the P2S74? unit with respect to the total molar amount of the PS43? unit, the P2S64? unit, and the P2S74? unit is greater than 0 to about 60%.
Abstract: A solid electrolyte includes a compound having an argyrodite crystal structure represented by Formula 1, LiaMxPSbBrcXd.??Formula 1 wherein Formula 1, M is Na, K, Fe, Mg, Ca, Ag, Cu, Zr, Zn, or a combination thereof; X is Cl, I, or a combination thereof; and 0?x<1, 5?(a+x)<7, 5?a?6, 4?b?6, 0<(c+d)?2, and (c/d)>4.
Type:
Grant
Filed:
September 29, 2020
Date of Patent:
June 20, 2023
Assignee:
SAMSUNG SDI CO., LTD.
Inventors:
Hyunseok Kim, Saebom Ryu, Seoksoo Lee, Soyeon Kim
Abstract: A positive active material for a rechargeable lithium battery includes a first positive active material including a secondary particle including at least two agglomerated primary particles, where at least one part of the primary particles has a radial arrangement structure, as well as a second positive active material having a monolith structure. The first and second positive active materials may both include nickel-based positive active materials. A method of preparing the positive active material, and a rechargeable lithium battery including a positive electrode including the positive active material are also provided.
Abstract: Disclosed are a compound for an organic optoelectronic device represented by Chemical Formula 1, a composition for an organic optoelectronic device, an organic optoelectronic device including the same, and a display device. Details of Chemical Formula 1 are the same as defined in the specification.
Type:
Grant
Filed:
January 18, 2017
Date of Patent:
June 13, 2023
Assignee:
SAMSUNG SDI CO., LTD.
Inventors:
Kipo Jang, Jun Seok Kim, Jinhyun Lui, Chang Ju Shin, Sujin Han, Youngkwon Kim, Eun Sun Yu, Sung-Hyun Jung, Ho Kuk Jung
Abstract: A nickel-based active material precursor includes a particulate structure including a core portion, an intermediate layer portion on the core portion, and a shell portion on the intermediate layer portion, wherein the intermediate layer portion and the shell portion include primary particles radially arranged on the core portion, and each of the core portion and the intermediate layer portion includes a cation or anion different from that of the shell portion. The cation includes at least one selected from boron (B), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), titanium (Ti), vanadium (V), tungsten (W), chromium (Cr), iron (Fe), copper (Cu), zirconium (Zr), and aluminium (Al), and the anion includes at least one selected from phosphate (PO4), BO2, B4O7, B3O5, and F.
Abstract: The present invention relates to an organic compound represented by Chemical Formula 1, an organic optoelectronic diode, and a display device.
Type:
Grant
Filed:
July 21, 2016
Date of Patent:
June 13, 2023
Assignee:
SAMSUNG SDI CO., LTD.
Inventors:
Sung-Hyun Jung, Dong Wan Ryu, Chang Ju Shin, Hanill Lee, Chunkeun Jang
Abstract: A resist underlayer composition includes a polymer including a structural unit represented by Chemical Formula 1, and a solvent. A method of forming patterns uses the resist underlayer composition under a photoresist pattern to enhance the sensitivity of the photoresist to an exposure light source, thereby providing enhanced resolution and faster processing times.
Type:
Grant
Filed:
January 20, 2021
Date of Patent:
June 13, 2023
Assignee:
Samsung SDI Co., Ltd.
Inventors:
Jaeyeol Baek, Soonhyung Kwon, Minsoo Kim, Hyeon Park, Shinhyo Bae, Daeseok Song, Yoojeong Choi
Abstract: To improve the safety of a secondary battery, the present disclosure provides a secondary battery including: a plurality of battery cells each including a case and an electrode assembly accommodated in the case; a plurality of first bus bars electrically connected to the plurality of battery cells and having a first thickness, the plurality of first bus bars being apart from each other with a predetermined gap therebetween; and a second bus bar arranged above the plurality of first bus bars and electrically connected to the plurality of first bus bars, the second bus bar having a second thickness greater than the first thickness.
Abstract: The present invention relates to a battery pack capable of securing a welding strength between a tab plate and an electrode tab, and a manufacturing method therefor. As an example, disclosed is a battery pack comprising: a battery cell from which an electrode tab is withdrawn; and a protection circuit module which is electrically connected to the battery cell and which has a circuit board and a tab plate formed on one surface of the circuit board and electrically connected to the electrode tab, wherein the tab plate has a through hole for heating the electrode tab.
Abstract: A battery system includes a plurality of battery modules, each of the battery modules including a plurality of stacked battery cells and a battery module monitor (BMM) configured to monitor the respective battery cells; a battery system monitor (BSM) configured to communicate with and control the BMMs; a housing enclosing the battery modules and the BSM, the battery modules being arranged in the housing such that a swelling compensation channel is formed between the battery module and the housing; and an optical communication system (OCS) configured to connect the BSM with the BMMs via optical signals propagating along the swelling compensation channel.
Type:
Grant
Filed:
February 22, 2021
Date of Patent:
June 6, 2023
Assignee:
SAMSUNG SDI CO., LTD.
Inventors:
Maximilian Hofer, Roland Klobasa, Gernot Kraberger