Patents by Inventor Jung Woon KIM
Jung Woon 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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Publication number: 20240402866Abstract: A method of displaying an application is provided. The method includes displaying an execution screen of a first application on a first area when the first application is executed, displaying the execution screen of the first application on a second area instead of on the first area when a second application is executed while the first application is executed, and displaying an execution screen of a second application on the first area.Type: ApplicationFiled: August 13, 2024Publication date: December 5, 2024Inventors: Young-jin KIM, Sung-hee KIM, Seung-woon LEE, Kang-tae KIM, Tae-soo KIM, Jung-hwan CHOI
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Patent number: 12135488Abstract: A light modulating device is disclosed herein. In some embodiments, a light modulating device includes a first substrate, a second substrate, and a liquid crystal layer, wherein the liquid crystal layer is disposed between the first and second substrates, and wherein the light modulating device satisfies Equation 1: T2?3×T1, wherein, T1 is an initial transmittance measured after vertically orienting the liquid crystal layer and placing it between orthogonal polarizers, and T2 is a transmittance measured after heating the liquid crystal layer showing the transmittance of T1 at 100° C. for 5 minutes, and then placing it between the orthogonal polarizers. The light modulating device can stably maintain designed optical properties even after an encapsulation process. The light modulating device can also stably maintain the orientation state of a light modulation layer while effectively securing adhesive force between upper and lower substrates.Type: GrantFiled: July 29, 2021Date of Patent: November 5, 2024Assignee: LG Chem, Ltd.Inventors: Min Jun Gim, Dong Hyun Oh, Jung Sun You, Jin Hong Kim, Jung Woon Kim
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Publication number: 20240356524Abstract: A bulk acoustic resonator includes a resonance portion including a first electrode, a piezoelectric layer disposed on the first electrode along a height direction, and a second electrode disposed on the piezoelectric layer along the height direction. The resonance portion includes an overlapping region in which the first electrode, the piezoelectric layer, and the second electrode overlap each other along the height direction. The overlapping region includes a central portion and an edge portion disposed outside the central portion, and including a first edge portion and a second edge portion. A height of the second electrode of the first edge portion and a height of the second electrode of the second edge portion are lower than a height of the second electrode of the central portion along the height direction, and are different from each other along the height direction.Type: ApplicationFiled: February 22, 2024Publication date: October 24, 2024Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Won HAN, Sang Uk SON, Jong Woon KIM, Sungwook KIM, Jeong Hoon RYOU, Daehun JEONG, Jung-Eun YOUM, Sangheon HAN, Jeonga KIM, Hwasun LEE
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Patent number: 12118177Abstract: A method of displaying an application is provided. The method includes displaying an execution screen of a first application on a first area when the first application is executed, displaying the execution screen of the first application on a second area instead of on the first area when a second application is executed while the first application is executed, and displaying an execution screen of a second application on the first area.Type: GrantFiled: May 19, 2023Date of Patent: October 15, 2024Assignee: Samsung Electronics Co., Ltd.Inventors: Young-jin Kim, Sung-hee Kim, Seung-woon Lee, Kang-tae Kim, Tae-soo Kim, Jung-hwan Choi
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Patent number: 12099111Abstract: A detection device includes a transmitter for outputting an impulse signal and a receiver for receiving and processing a reflected signal obtained by reflecting the impulse signal from a target. The receiver includes a sample and extension unit that samples a received signal and extends a duration of a value obtained by sampling the received signal to form an extended signal extended to a frequency lower than a frequency of the reflected signal.Type: GrantFiled: December 9, 2021Date of Patent: September 24, 2024Assignee: UIF (UNIVERSITY INDUSTRY FOUNDATION), YONSEI UNIVERSITYInventors: Tae Wook Kim, Jung Woon Park
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Patent number: 11976224Abstract: A pressure-sensitive adhesive and a liquid crystal cell including the same are disclosed herein. In some embodiments, a pressure-sensitive adhesive having a storage elastic modulus of 700 kPa or more at a temperature of 25° C. and a frequency of 6 rad/sec, and a gel fraction of 35% or more, wherein the gel fraction is defined by Equation 1: B/A×100??[Equation 1] wherein, A is an initial mass (g) of the pressure-sensitive adhesive, B is a mass (g) of an insoluble content after the pressure-sensitive adhesive is immersed in a solvent at 60° C. for 24 hours and then dried at 150° C. for 30 minutes. The press-sensitive adhesive is advantageous for implementation into a flexible element between upper and lower substrates of a liquid crystal cell, and providing excellent electro-optical properties and appearance uniformity by minimizing defects.Type: GrantFiled: July 2, 2021Date of Patent: May 7, 2024Assignee: LG Chem, Ltd.Inventors: Jung Sun You, Dong Hyun Oh, Jin Hong Kim, Jung Woon Kim, Min Jun Gim
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Patent number: 11940694Abstract: A method for manufacturing a light modulation device is provided. The light modulation device is capable of removing defects such as orientation irregularities. The light modulation device further improves the orientation state in the light modulation device that adjusts orientation of a liquid crystal compound or the like with a liquid crystal alignment film and a pressure-sensitive adhesive layer or adhesive layer.Type: GrantFiled: November 4, 2020Date of Patent: March 26, 2024Assignee: LG Chem, Ltd.Inventors: Jung Sun You, Dong Hyun Oh, Cheol Min Yun, Jin Hong Kim, Jung Woon Kim, Min Jun Gim
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Patent number: 11927852Abstract: An optical device is disclosed herein. In some embodiments, a optical device includes a liquid crystal element having a top surface, a bottom surface, and sides separating the top surface and the bottom surface, and an outer layer surrounding the sides of the liquid crystal element, wherein the liquid crystal element comprises a first base layer, a second base layer, a liquid crystal layer positioned between the first base layer and the second base layer, a pressure-sensitive adhesive layer positioned between the first base layer and the liquid crystal layer, and a spacer to maintain a gap between the first base layer and the second base layer, wherein the optical device satisfies Equation 1: ?T2×0.4?T1?T2?T2×0.4??[Equation 1] wherein, T1 is a thickness of the outer layer, and T2 is a thickness of the liquid crystal element.Type: GrantFiled: October 28, 2021Date of Patent: March 12, 2024Assignee: LG Chem, Ltd.Inventors: Jung Woon Kim, Jung Sun You, Doo Young Huh, Dong Hyun Oh
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Publication number: 20240036400Abstract: A light modulating device is disclosed herein. The light modulating device is applied to a sunroof and/or glass of an automobile. In some embodiments, a light modulating device configured to be disposed in a sunroof of an automobile includes a light modulation film layer, wherein the light modulation film layer includes a first anisotropic substrate, a second anisotropic substrate, and a liquid crystal layer, wherein each of the first and second anisotropic substrates has a first surface, wherein the first surfaces of the first and second anisotropic substrates face each other, wherein the liquid crystal layer is disposed between the first surfaces of the first and second anisotropic substrates, and wherein a slow axis of the first or second anisotropic substrate is disposed parallel to a width direction of the automobile.Type: ApplicationFiled: July 22, 2021Publication date: February 1, 2024Applicant: LG Chem, Ltd.Inventors: Min Jun Gim, Dong Hyun Oh, Jung Sun You, Jin Hong Kim, Jung Woon Kim
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Publication number: 20230408872Abstract: An optical device is disclosed herein. In some embodiments, a optical device includes a liquid crystal element having a top surface, a bottom surface, and sides separating the top surface and the bottom surface, and an outer layer surrounding the sides of the liquid crystal element, wherein the liquid crystal element comprises a first base layer, a second base layer, a liquid crystal layer positioned between the first base layer and the second base layer, a pressure-sensitive adhesive layer positioned between the first base layer and the liquid crystal layer, and a spacer to maintain a gap between the first base layer and the second base layer, wherein the optical device satisfies Equation 1: ?T2×0.4?T1?T2?T2×0.4??[Equation 1] wherein, T1 is a thickness of the outer layer, and T2 is a thickness of the liquid crystal element.Type: ApplicationFiled: October 28, 2021Publication date: December 21, 2023Applicant: LG Chem, Ltd.Inventors: Jung Woon Kim, Jung Sun You, Doo Young Huh, Dong Hyun Oh
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Publication number: 20230384638Abstract: An optical device is disclosed herein. In some embodiments, an optical device includes a first outer substrate, a second outer substrate, a liquid crystal element positioned between the first outer substrate and the second outer substrate, a first intermediate layer between the first outer substrate and the liquid crystal element, and a second intermediate layer between the second outer substrate and the liquid crystal element, wherein a sum of total thicknesses of the first and second intermediate layers is 800 ?m or more, and wherein the liquid crystal element includes a first base layer, a second base layer, a liquid crystal layer between the first base layer and the second base layer, a pressure-sensitive adhesive layer between the first base layer and the liquid crystal layer, and a spacer to maintain a gap between the first and second base layers.Type: ApplicationFiled: October 28, 2021Publication date: November 30, 2023Applicant: LG Chem, Ltd.Inventors: Jung Woon Kim, Dong Hyun Oh, Jung Sun You, Jin Hong Kim, Eun Jung Lim, Min Jun Gim
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Publication number: 20230305338Abstract: A light modulating device is disclosed herein. In some embodiments, a light modulating device includes a first substrate, a second substrate, a light modulation layer, and a retardation film, wherein each of the first and second substrates has a first surface and a second surface, wherein the first and second surfaces are disposed opposite to each other, wherein the first surfaces of the first and second substrates face each other, wherein the light modulation layer is disposed between the first and second substrates, wherein the retardation film is formed on the second surface of the first substrate or the second substrate, and wherein the retardation film has an in-plane phase difference in a range of 100 nm to 300 nm for light having a wavelength of 550 nm. The light modulating device can be control omnidirectional light leakage in a black mode while having excellent optical properties and mechanical properties.Type: ApplicationFiled: July 22, 2021Publication date: September 28, 2023Applicant: LG Chem, Ltd.Inventors: Min Jun Gim, Sergey Belyaev, Dong Hyun Oh, Jung Sun You, Jin Hong Kim, Jung Woon Kim, Han Min Seo
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Publication number: 20230280616Abstract: A light modulating device is disclosed herein. In some embodiments, a light modulating device includes a light modulation film layer, wherein the light modulation film layer includes a first substrate, a second substrate, and a liquid crystal layer, wherein the liquid crystal layer is disposed between the first and second substrates, wherein the liquid crystal layer and is capable of implementing twisted orientation, and wherein a K value is in a range of 0.15 to 0.4. The light modulation device can stably maintain designed optical properties even after an encapsulation process in which a pressure is applied, such as an autoclave process. The light modulating device can also stably maintain the orientation state of the light modulation layer while effectively securing adhesive force between upper and lower substrates.Type: ApplicationFiled: July 27, 2021Publication date: September 7, 2023Applicant: LG Chem, Ltd.Inventors: Min Jun Gim, Dong Hyun Oh, Jung Sun You, Jin Hong Kim, Jung Woon Kim, Han Min Seo
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Publication number: 20230279279Abstract: A pressure-sensitive adhesive and a liquid crystal cell including the same are disclosed herein. In some embodiments, a pressure-sensitive adhesive having a storage elastic modulus of 700 kPa or more at a temperature of 25° C. and a frequency of 6 rad/sec, and a gel fraction of 35% or more, wherein the gel fraction is defined by Equation 1: B/A×100??[Equation 1] wherein, A is an initial mass (g) of the pressure-sensitive adhesive, B is a mass (g) of an insoluble content after the pressure-sensitive adhesive is immersed in a solvent at 60° C. for 24 hours and then dried at 150° C. for 30 minutes. The press-sensitive adhesive is advantageous for implementation into a flexible element between upper and lower substrates of a liquid crystal cell, and providing excellent electro-optical properties and appearance uniformity by minimizing defects.Type: ApplicationFiled: July 2, 2021Publication date: September 7, 2023Applicant: LG Chem, Ltd.Inventors: Jung Sun You, Dong Hyun Oh, Jin Hong Kim, Jung Woon Kim, Min Jun Gim
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Patent number: 11733567Abstract: A light modulation device is disclosed herein. The light modulation device can properly maintain a cell gap by controlling the shape and arrangement of spacers and the like, and is applicable for various applications by effectively controlling omnidirectional light leakage in a black mode, while having excellent optical properties, including transmittance-variable characteristics and haze characteristics, and the like.Type: GrantFiled: October 8, 2020Date of Patent: August 22, 2023Inventors: Min Jun Gim, Jung Sun You, Cheol Ock Song, Dong Hyun Oh, Nam Gyu Kim, Jin Hong Kim, Jung Woon Kim
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Publication number: 20230258982Abstract: A light modulating device is disclosed herein. In some embodiments, a light modulating device includes a first substrate having a first surface, a pressure-sensitive adhesive layer or an adhesive layer formed on the first surface of the first substrate, a second substrate, a liquid crystal layer disposed between the first and second substrates; and a partition wall spacer, wherein the partition wall spacer maintains a distance between the first and second substrates, wherein the liquid crystal layer is capable of being configured in a twist orientation, and wherein a ratio of thickness of the liquid crystal layer relative to a pitch of the liquid crystal layer in the twist orientation is more than 2.8 and 10 or less. The light modulating device can have a wide transmittance variable range and does not have problems, such as liquid crystal defects or visibility deterioration, while implementing low transmittance in a black mode.Type: ApplicationFiled: July 1, 2021Publication date: August 17, 2023Applicant: LG Chem, Ltd.Inventors: Jin Hong Kim, Dong Hyun Oh, Jung Sun You, Jung Woon Kim, Min Jun Gim
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Publication number: 20230258992Abstract: A light modulating device is disclosed herein. In some embodiments, a light modulating device includes a first substrate, a second substrate, and a liquid crystal layer, wherein the liquid crystal layer is disposed between the first and second substrates, and wherein the light modulating device satisfies Equation 1: T2?3×T1, wherein, T1 is an initial transmittance measured after vertically orienting the liquid crystal layer and placing it between orthogonal polarizers, and T2 is a transmittance measured after heating the liquid crystal layer showing the transmittance of T1 at 100° C. for 5 minutes, and then placing it between the orthogonal polarizers. The light modulating device can stably maintain designed optical properties even after an encapsulation process. The light modulating device can also stably maintain the orientation state of a light modulation layer while effectively securing adhesive force between upper and lower substrates.Type: ApplicationFiled: July 29, 2021Publication date: August 17, 2023Applicant: LG Chem, Ltd.Inventors: Min Jun Gim, Dong Hyun Oh, Jung Sun You, Jin Hong Kim, Jung Woon Kim
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Publication number: 20230229050Abstract: An optical device is disclosed herein. In some embodiments, an optical device includes a first outer substrate, a second outer substrate, a liquid crystal element film positioned between the first and second outer substrates, intermediate layers positioned between the first outer substrate and the liquid crystal element film and between the liquid crystal element film and the second outer substrate, respectively, wherein a sum of the total thicknesses of the intermediate layers is 1,600 ?m or more. The optical device can secure structural stability and good quality uniformity by maintaining the cell gap of the liquid crystal element film properly, having excellent attachment force between the upper substrate and the lower substrate, and minimizing defects such as pressing or crowding in the bonding process of the outer substrates.Type: ApplicationFiled: July 2, 2021Publication date: July 20, 2023Applicant: LG Chem, Ltd.Inventors: Jung Woon Kim, Dong Hyun Oh, Jung Sun You, Jin Hong Kim, Min Jun Gim
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Patent number: 11614660Abstract: A transmittance-variable film and a use thereof, where the transmittance-variable film can control pretilt of a liquid crystal interface by applying a liquid crystal alignment film containing splay oriented liquid crystal molecules, and can vertically and horizontally orient a liquid crystal layer or a liquid crystal interface according to an average tilt angle of the liquid crystal alignment film to ensure uniformity of driving and fast response speed. In addition, by applying a liquid crystal alignment film, the transmittance-variable film can be implemented in various modes with a simple coating-drying-curing method excluding the rubbing process by controlling an arrangement of liquid crystal molecules in a liquid crystal alignment film other than the pretilt control method using the conventional rubbing method.Type: GrantFiled: October 18, 2017Date of Patent: March 28, 2023Inventors: Jung Woon Kim, Su Young Ryu, Moon Soo Park, Byoung Kun Jeon, Sin Young Kim, Ji Youn Lee
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Publication number: 20220390779Abstract: A method for manufacturing a light modulation device is provided. The light modulation device is capable of removing defects such as orientation irregularities. The light modulation device further improves the orientation state in the light modulation device that adjusts orientation of a liquid crystal compound or the like with a liquid crystal alignment film and a pressure-sensitive adhesive layer or adhesive layer.Type: ApplicationFiled: November 4, 2020Publication date: December 8, 2022Applicant: LG Chem, Ltd.Inventors: Jung Sun You, Dong Hyun Oh, Cheol Min Yun, Jin Hong Kim, Jung Woon Kim, Min Jun Gim