Abstract: The present, invention provides a liquid crystal display device that can exhibit excellent retardation stability against heat and that can prevent reduction in contrast ratio due to scattering even when the liquid crystal display device includes a retardation layer formed by polymerization of a reactive monomer, and a method for producing a liquid crystal display device suitable for production of the liquid crystal display device. The liquid crystal display device of the present invention includes paired substrates and a liquid crystal layer provided between the paired substrates. At least one of the paired substrates includes a retardation layer formed from a polymer of at least one type of monomer. The at least one type of monomer includes a photo-aligning monomer that is to be aligned by polarized light.
Abstract: The present invention relates to a liquid crystal alignment composition that not only exhibits high degree of imidization and excellent film strength when manufacturing a liquid crystal alignment film, but also can realize improved alignment property and electrical properties, a method for preparing a liquid crystal alignment film using the same, a liquid crystal alignment film and a liquid crystal display using the same.
Type:
Grant
Filed:
November 12, 2019
Date of Patent:
June 6, 2023
Assignee:
LG CHEM, LTD.
Inventors:
Jun Young Yoon, Kichul Koo, Jung Ho Jo, Soonho Kwon, Hyeongseuk Yun, Seongku Kim, Hoonseo Park
Abstract: The present invention relates to a liquid crystal alignment agent composition including a copolymer for liquid crystal alignment agent containing two types of repeating units classified according to the types of diamine-derived functional groups, and a crosslinker compound in which the protecting group having a specific structure was introduced, a method for preparing a liquid crystal alignment film using the same, and a liquid crystal alignment film and a liquid crystal display device using the same.
Type:
Grant
Filed:
January 9, 2020
Date of Patent:
June 6, 2023
Assignee:
LG CHEM, LTD.
Inventors:
Seongku Kim, Kichul Koo, Hoonseo Park, Jung Ho Jo, Soonho Kwon
Abstract: An adhesive composite is provided that may include a substrate and an adhesive layer overlying the substrate. The adhesive layer may include at least a first region of a high Tg adhesive material and a second region of a low Tg adhesive material. The first region of the adhesive layer may be co-planar with the second region of the adhesive layer. The high Tg adhesive material may include a first glass transition temperature Tg1 and the low Tg adhesive material may include a second glass transition temperature Tg2, where Tg1 is greater than Tg2.
Abstract: A curable mixture, a partially cured composition, a cured composition, an article containing either the partially cured composition or the cured composition, and a method of bonding two substrates are provided. The partially cured composition functions as a pressure-sensitive adhesive while the cured composition functions as a structural or semi-structural adhesive. The curable mixture can be applied to a first substrate by printing or dispensing, if desired.
Type:
Grant
Filed:
June 27, 2018
Date of Patent:
May 23, 2023
Assignee:
3M Innovative Properties Company
Inventors:
Kelly A. Volp, Kathleen S. Shafer, Ross E. Behling, Ann M. Gilman, Mark F. Ellis, Matthew R. D. Smith, Aaron T. Hedegaard, Xiaoming Jiang, Cyrus A. Anderson
Abstract: The sealing material composition of the present disclosure includes a lactone-based compound having at least two functional groups A represented by the Chemical Formula (1) and a curing agent that is thermally reactive with the lactone-based compound and contains a compound having at least two of one or more kinds of functional groups B selected from the group consisting of a mercaptan group, a hydroxyl group, and a secondary amine group where, a is an integer of 0 or 1, and * is an atomic bond.
Abstract: A low refractive layer includes a plurality of hollow inorganic particles and a matrix between the hollow inorganic particles, and capable of exhibiting a good refractive index and improved durability by enhancing the weight ratio of the hollow inorganic particles to the matrix. An electronic device according to an embodiment of the inventive concept including the low refractive layer may exhibit improved reliability and good display quality.
Type:
Grant
Filed:
July 1, 2019
Date of Patent:
May 16, 2023
Assignee:
Samsung Display Co., Ltd.
Inventors:
Taekjoon Lee, Young gu Kim, Sun-young Chang, Jongmin Ok, Hyelim Jang, Jin-soo Jung, Kyungseon Tak
Abstract: The Kerr effect depends very strongly on the temperature and is associated with high operating voltages. The present invention relates to an electrically controllable optical element which comprises a cell (D) filled with a starting mixture (K) and having two substrates (1a, 1b) and a conductive layer (2a, 2b) applied onto the inner surface of the respective substrate (1a, 1b), wherein the starting mixture (K) comprises a mixture of dipolar, rod-shaped molecules (5) and semi-mesogenes (4) as active constituents, and wherein the starting mixture (K) forms a thin layer having a wide-meshed, anisotropic network (9) produced by photo-polymerization between the structured or/and flat conductive layers (2a, 2b), which are applied onto a substrate (1a, 1b), in a thin-film cell (D). According to the invention, an optically active surface profile (O) is incorporated on the inner surface of a substrate (1a or 1b) or into the substrate (1a or 1b) or both substrates (1a and 1b).
Type:
Grant
Filed:
January 18, 2018
Date of Patent:
May 9, 2023
Assignees:
FokusTec GmbH
Inventors:
Klaus Hoffmann, Joachim Stumpe, Thomas Fischer, Michael Rutloh
Abstract: A sealed pharmaceutical container includes a shoulder, a neck extending from the shoulder, and a flange extending from the neck. The flange includes an inclined sealing surface defining an opening in the sealed pharmaceutical container. The sealed pharmaceutical container also includes a sealing assembly including a stopper extending over the sealing surface of the flange and a cap securing the stopper to the flange. The stopper has a glass transition temperature (Tg) that is greater than or equal to ?70° C. and less than or equal to ?45° C. The sealing assembly maintains a helium leakage rate of the sealed pharmaceutical container of less than or equal to 1.4×10?6 cm3/s as the sealed pharmaceutical container is cooled to a temperature of less than or equal to ?45° C.
Type:
Grant
Filed:
March 26, 2021
Date of Patent:
May 9, 2023
Assignee:
CORNING INCORPORATED
Inventors:
Dane Alphanso Christie, Sinue Gomez-Mower, Adam Robert Sarafian, Robert Anthony Schaut
Abstract: Regioselectively substituted cellulose esters having a plurality of pivaloyl substituents and a plurality of aryl-acyl substituents are disclosed along with methods for making the same. Such cellulose esters may be suitable for use in films, such as +A optical films, and/or +C optical films. Optical films prepared employing such cellulose esters have a variety of commercial applications, such as, for example, as compensation films in liquid crystal displays and/or waveplates in creating circular polarized light used in 3-D technology.
Type:
Grant
Filed:
May 4, 2021
Date of Patent:
May 9, 2023
Assignee:
Eastman Chemical Company
Inventors:
Matthew Allen Boone, Christopher Harlan Burk, Peter Borden Mackenzie, Jennifer A. Fish, Eduardo Gallas Cervo, Elaine Beatrice Mackenzie, Robert Joseph Maleski, Wesley Wayne McConnell, David William Norman, Tabatha Stearns, Bin Wang
Abstract: Adhesive sealant composition comprising at least one moisture-crosslinkable prepolymer and, as plasticizing agent, an ester compound of formula (I): in which: R1, R2 and R3 represent an oxycarbonylalkyl radical of 4 to 20 carbon atoms; R4 represents a hydrogen atom, a methyl or ethyl radical or else a radical: —CH2—R5 in which R5 represents an oxycarbonylalkyl radical of 4 to 20 carbon atoms.
Abstract: A flexible display is disclosed. In one aspect, the flexible display includes a window layer including a bending area and a non-bending area and a flexible display panel formed over a surface of the window layer and configured to display images. The bending area includes a plurality of cut portions which are configured to be at least partially separated along a plurality of cut lines formed therebetween.
Abstract: A multilayer structure includes a layer of a resin composition containing an ethylene-vinyl alcohol copolymer and a thermoplastic elastomer, wherein a mass ratio of the ethylene-vinyl alcohol copolymer to the thermoplastic elastomer is from 65/35 to 95/5 and the layer of the resin composition has one surface directly adjacent to a layer of polyolefin with no polar functional group. A multilayer structure is thus provided that is excellent in gas barrier properties, transparency, and flexibility and also has good delamination properties between the layer of the resin composition and the layer of the polyolefin with no polar functional group.
Abstract: A multilayer adhesive tape in which an interface separation between layers does not occur even at in extremely low temperature atmosphere is provided. The multilayer adhesive tape sequentially includes: a first outer adhesive layer; an intermediate adhesive layer; and a second outer adhesive layer, in which attaching force among the first outer adhesive layer, the intermediate adhesive layer, and the second outer adhesive layer is maintained after the multilayer adhesive tape is treated in liquefied nitrogen for 15 seconds.
Type:
Grant
Filed:
May 18, 2018
Date of Patent:
January 10, 2023
Inventors:
Hokyung Song, Dong Hoon Lim, Ju Yong Seo, Jun Man Choi, Woo Yeon Kim, Jae Sung Hong, Jang Soon Kim, Sle Lee, Kwang Su Seo
Abstract: An adhesive composition and a polarizing plate including an adhesive layer formed using the same are disclosed herein. In some embodiments, an adhesive composition includes 3-ethyl-3-(2-ethylhexyloxy)methyloxetane, 3-ethyl-3-hydroxymethyloxetane, 3,3?-oxybis(methylene)bis(3-ethyloxetane), an acryl-based compound, an aromatic epoxy compound, and an alicyclic epoxy compound, wherein the 3-ethyl-3-(2-ethylhexyloxy)methyloxetane is present in an amount of 20 parts by weight to 40 parts by weight, the 3-ethyl-3-hydroxymethyloxetane is present in 2 parts by weight to 8 parts by weight, the 3,3?-oxybis(methylene)bis(3-ethyloxetane) is present in 2 parts by weight to 8 parts by weight, the acryl-based compound is present in 5 parts by weight to 20 parts by weight, the aromatic epoxy compound is present in 7 parts by weight to 40 parts by weight, and the alicyclic epoxy compound is present in 10 parts by weight to 50 parts by weight, based on 100 parts by weight of the adhesive composition.
Abstract: An adhesive composition including a first epoxy-based compound, a second epoxy-based compound, an oxetane compound, and a diacrylate-based compound is provided. A polarizing plate includes a polarizer, an adhesive layer provided on at least one surface of the polarizer and formed using the adhesive composition, and a protective film provided on at least one surface of the adhesive layer. An image display device using the polarizing plate is also provided.
Abstract: An adhesive composition and a polarizing plate including an adhesive layer formed using the same are disclosed herein. In some embodiments, an adhesive composition includes 3-ethyl-3-(2-ethylhexyloxy)methyloxetane, 3-ethyl-3-hydroxymethyloxetane, 3,3?-oxybis(methylene)bis(3-ethyloxetane), an aromatic epoxy compound, and an alicyclic epoxy compound, wherein the 3-ethyl-3-(2-ethylhexyloxy)methyloxetane is present in an amount of 20 parts by weight to 50 parts by weight, the 3-ethyl-3-hydroxymethyloxetane is present in an amount of 2 parts by weight to 8 parts by weight, the 3,3?-oxybis(methylene)bis(3-ethyloxetane) is present in an amount of 2 parts by weight to 8 parts by weight, the aromatic epoxy compound is present in an amount of 7 parts by weight to 38 parts by weight, and the alicyclic epoxy compound is present in amount of 10 parts by weight to 50 parts by weight, based on 100 parts by weight of the adhesive composition.
Abstract: The present application relates to a pressure-sensitive adhesive composition and a use thereof. The polarizing plate to which the pressure-sensitive adhesive composition of the present application is applied has an advantage that the performance capable of blocking the blue light, for example, the light having a wavelength region of 380 nm or more, is particularly excellent, when attached to an organic light emitting panel, especially, an organic light emitting panel comprising a plastic substrate.
Type:
Grant
Filed:
June 5, 2019
Date of Patent:
November 1, 2022
Inventors:
Ha Song Yun, Seung Ju Noh, Hyun Hee Son
Abstract: Illustrative examples of forming and using suitably adapted materials for improving interface strength between thermoset-thermoplastic joined parts includes exposure of a thermoplastic substrate to a plasma to form an amine-functionalized substrate having amine chemical moieties disposed on a first surface. The first surface of the thermoplastic substrate is positioned adjacent to and contacts a second surface of a thermoset substrate to form a workpiece. The thermoset substrate includes epoxide chemical moieties on and within material forming the thermoset substrate. The workpiece is subsequently heated to form a structure, where heating of the workpiece causes covalent chemical bonds to form between the plasma-treated first surface of the thermoplastic substrate and the second surface of the thermoset substrate.
Abstract: An article of fabric of a generally tubular shape body having an inner skin-facing surface with a generally symmetric inner circumference and an outer-facing surface having a generally non-symmetric outer circumference.