Patents by Inventor Seong-Yong Hwang
Seong-Yong Hwang 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: 11975500Abstract: Provided is a method for manufacturing a polarizing plate, comprising a step of irradiating an optical laminate with ultraviolet rays having an emission wavelength band of 380 nm to 410 nm. The optical laminate sequentially comprises a first base film, a first adhesive layer, a linear polarizer, a second adhesive layer, a second base film and a reverse dispersion liquid crystal layer. The first adhesive layer and the second adhesive layer each comprise a photosensitizer for initiating a curing reaction in a wavelength band of 350 nm to 410 nm, and the ultraviolet rays are irradiated on the first base film side of the optical laminate.Type: GrantFiled: February 11, 2020Date of Patent: May 7, 2024Assignee: LG Chem, Ltd.Inventors: Young Sik Kim, Jin Yong Park, Yeon Ok Jung, Min Woo Hwang, Jung Geun Kwon, Yong Su Ju, Chan Youn Kim, Ji Hoon Park, Seong Min Lim
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Publication number: 20240136604Abstract: The present invention provides a battery safety test device includes: a mechanical switch element having one end connected to either a battery positive or negative electrode and the other end connected to an electronic switching element; the electronic switching element having one end connected to the mechanical switch element and the other end connected to the other of the battery positive or negative electrode; a voltage sensor for measuring a voltage of the battery after the mechanical switch element and the electronic switching element are turned on; and a current sensor for measuring a current of the battery after the mechanical switch element and the electronic switching element are turned on.Type: ApplicationFiled: December 29, 2023Publication date: April 25, 2024Applicant: LG ENERGY SOLUTION, LTD.Inventors: Won Hyeok LEE, Hyung Jin HWANG, Seong Ha CHA, Ui Yong JEONG, In Cheol SHIN
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Patent number: 11925084Abstract: A display panel can include a substrate, a light-emitting element including an emission region on the substrate, a reference voltage line adjacent to the light-emitting element, and a branch line connected to the reference voltage line to apply a reference voltage to light-emitting element. The light-emitting element can emit light on the emission region in a direction of the substrate. Further, the branch line can include a semiconductor layer, and the semiconductor layer of the branch line can overlap the emission region.Type: GrantFiled: December 16, 2022Date of Patent: March 5, 2024Assignee: LG DISPLAY CO., LTD.Inventors: Dong Yoon Lee, Kwang Yong Choi, Seong Hwan Hwang, Byeong Uk Gang, Hye Min Park
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Patent number: 11911733Abstract: A hair dye dispenser according to an embodiment of the present invention includes a housing having an opening hole formed on one side of which a hair dye is provided, a plurality of cartridges disposed inside the housing and accommodating at least one dyeing material, a main body in which the plurality of cartridges are rotatably disposed, a main motor for rotating the main body so that a first cartridge of the plurality of cartridges is located adjacent to the opening hole, a discharge module for discharging the dyeing material contained in the first cartridge, and an accommodating body in which a basket accommodating the dyeing material discharged by the discharge module is placed, wherein the discharge module may include an elevating body that pressurizes the first cartridge when moving up and is separated from the first cartridge when moving down.Type: GrantFiled: October 24, 2019Date of Patent: February 27, 2024Assignee: LG FAROUK CO.Inventors: Kyung Sik Jang, Jeong Ho Lee, Jung Yong Lee, Seong Lok Hwang, Sang Min Lee, Joong Hun Kim
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Publication number: 20240040848Abstract: A display device comprises pixel electrodes disposed on a substrate and spaced apart from one another, a pixel-defining film disposed on the substrate and including openings, which are spaced apart from one another and overlap the pixel electrodes, organic light-emitting layers disposed in the openings of the pixel-defining film, a common electrode disposed between the pixel-defining film and the organic light-emitting layers, an encapsulation layer disposed on the common electrode, a light-blocking layer disposed on the encapsulation layer and including holes, which overlap the openings and are spaced apart from one another, and color filters disposed in the holes of the light-blocking layer and overlapping the openings. Sides of each of the openings have concave-convex patterns including convex portions that protrude outwardly and concave portions that are inwardly depressed. The color filters are disposed to partially overlap one another on the light-blocking layer.Type: ApplicationFiled: April 12, 2023Publication date: February 1, 2024Applicant: Samsung Display Co., Ltd.Inventors: Seong Yong HWANG, Ji Hyun KIM, Chan Young KIM, Yeong Ho LEE, Jun Hee LEE, Choong Youl IM, Ha Seok JEON, Hyun Duck CHO, Kook Hyun CHOI, Beohm Rock CHOI
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Publication number: 20230098923Abstract: A display device includes a display panel and a first shielding layer. The display panel includes a substrate, a display structure, and a sensing structure. The substrate includes a display area, a bending area, and a pad area. The display structure is disposed in the display area on the substrate. The sensing structure is disposed on the display structure, and includes sensing electrodes. The first shielding layer is disposed in the bending area on the substrate, and includes a same material as the sensing electrode.Type: ApplicationFiled: September 23, 2022Publication date: March 30, 2023Inventors: SEONG-YONG HWANG, SHINYA ONOUE, DONGJIN JEONG
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Patent number: 11231622Abstract: An optical film includes a first pattern layer including a base part and a plurality of protruding parts disposed on the base part, and having a first refractive index, and a second pattern layer disposed on the first pattern layer and having a second refractive index greater than the first refractive index. Each of the protruding parts includes a bottom surface adjacent to the base part, an upper surface opposite to the bottom surface and parallel to the bottom surface, and a side surface disposed between the bottom surface and the upper surface. The side surface includes three or more sub-inclined surfaces, inclination angles of which are different from each other, or includes a curved surface which is convex in a direction of the second pattern layer.Type: GrantFiled: August 27, 2020Date of Patent: January 25, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sung-Kyu Shim, Seong-Yong Hwang, Dohun Kim, Jonghwan Kim, Juyoun Son, Young-keun Lee, Seoungbum Pyoun
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Patent number: 11215864Abstract: An optical film includes a first pattern layer including a base part and protrusion part groups on the base part and having a first refractive index, and a second pattern layer on the first pattern layer and having a second refractive index greater than the first refractive index. Each of the protrusion part groups includes first and second protrusion parts adjacent to each other. Each of the first and second protrusion parts includes a bottom surface, an upper surface, a first side surface and a second side surface. The first and second protrusion parts are symmetrical with respect to a reference line passing through a center of each of the protrusion part groups and perpendicular to the base part. The first and second protrusion parts are asymmetrical with respect to a center line passing through a center of the upper surface and perpendicular to the bottom surface.Type: GrantFiled: August 10, 2020Date of Patent: January 4, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jonghwan Kim, Seong-Yong Hwang, Kyung-Min Kim, Sung-Kyu Shim
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Patent number: 11105970Abstract: Provided are an optical member, a display device including the same, and method for fabricating the optical member. The optical sheet includes an adhesive layer; and an optical pattern in contact with a first surface of the adhesive layer; and a release film in contact with a second surface of the adhesive layer, opposite to the first surface, wherein the optical pattern comprises a first pattern extending in a first direction, and a plurality of second patterns formed on the first pattern, wherein the first pattern comprises peak portions having a largest thickness and depressed portions having a smallest thickness, and the adhesive layer comprises a third pattern of recesses respectively aligned with the depressed portions of the first pattern, and a fourth pattern of recesses respectively aligned with the plurality of second patterns.Type: GrantFiled: May 2, 2019Date of Patent: August 31, 2021Assignee: Samsung Display Co., Ltd.Inventors: Jae Sul An, Jong Hwan Kim, Seong Yong Hwang
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Patent number: 11092734Abstract: An optical member and a display device including the same. The optical member includes a light guide plate including a surface disposed on a plane defined by a first direction and a second direction crossing the first direction, a low refractive index pattern disposed on the surface of the light guide plate and including an opening for exposing the surface of the light guide plate, a wavelength conversion layer disposed on the low refractive index pattern, and a passivation layer disposed on the wavelength conversion layer and covering a side surface of the wavelength conversion layer and a side surface of the low refractive index pattern at least one side portion. The low refractive index pattern has a lower index of refraction than the light guide plate, and a ratio of an area occupied by the low refractive index pattern to an area of the surface of the light guide plate decreases in the first direction.Type: GrantFiled: June 22, 2020Date of Patent: August 17, 2021Assignee: Samsung Display Co., Ltd.Inventors: Seong Yong Hwang, Young Min Park, Ju Young Yoon, Sung Kyu Shim, Sang Won Lee
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Publication number: 20210132422Abstract: An optical film includes a first pattern layer including a base part and protrusion part groups on the base part and having a first refractive index, and a second pattern layer on the first pattern layer and having a second refractive index greater than the first refractive index. Each of the protrusion part groups includes first and second protrusion parts adjacent to each other. Each of the first and second protrusion parts includes a bottom surface, an upper surface, a first side surface and a second side surface. The first and second protrusion parts are symmetrical with respect to a reference line passing through a center of each of the protrusion part groups and perpendicular to the base part. The first and second protrusion parts are asymmetrical with respect to a center line passing through a center of the upper surface and perpendicular to the bottom surface.Type: ApplicationFiled: August 10, 2020Publication date: May 6, 2021Inventors: JONGHWAN KIM, Seong-Yong HWANG, Kyung-Min KIM, Sung-Kyu SHIM
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Publication number: 20210132447Abstract: An optical film includes a first pattern layer including a base part and a plurality of protruding parts disposed on the base part, and having a first refractive index, and a second pattern layer disposed on the first pattern layer and having a second refractive index greater than the first refractive index. Each of the protruding parts includes a bottom surface adjacent to the base part, an upper surface opposite to the bottom surface and parallel to the bottom surface, and a side surface disposed between the bottom surface and the upper surface. The side surface includes three or more sub-inclined surfaces, inclination angles of which are different from each other, or includes a curved surface which is convex in a direction of the second pattern layer.Type: ApplicationFiled: August 27, 2020Publication date: May 6, 2021Inventors: Sung-Kyu SHIM, Seong-Yong HWANG, Dohun KIM, Jonghwan KIM, Juyoun SON, Young-keun LEE, SEOUNGBUM PYOUN
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Patent number: 10928577Abstract: An optical member includes a light guide plate, a first low refractive layer, a wavelength conversion layer, and a passivation layer. The first low refractive layer is disposed on the light guide plate. A refractive index of the first low refractive layer is smaller than a refractive index of the light guide plate. The wavelength conversion layer is disposed on the first low refractive layer. The passivation layer is disposed on the wavelength conversion layer. The passivation layer covers a side surface of the wavelength conversion layer and a side surface of the first low refractive layer on at least one side.Type: GrantFiled: October 23, 2019Date of Patent: February 23, 2021Assignee: Samsung Display Co., Ltd.Inventors: Seong Yong Hwang, Jin Ho Park, Tae Gil Kang, Hyuk Hwan Kim, Sang Won Lee, Jae Jin Choi
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Patent number: 10908457Abstract: An optical member and display device, the optical member including a diffuser plate, a wavelength conversion layer disposed on a top surface of the diffuser plate, a passivation layer disposed on the wavelength conversion layer and covering a side surface of the wavelength conversion layer on at least one side thereof, and a diffusing pattern layer disposed on and in direct contact with a bottom surface of the diffuser plate and containing diffusion particles.Type: GrantFiled: July 31, 2018Date of Patent: February 2, 2021Assignee: Samsung Display Co., Ltd.Inventors: Sang Won Lee, Sung Kyu Shim, Seong Yong Hwang
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Patent number: 10809437Abstract: An optical member includes a light guide plate having a top surface, a bottom surface, and side surfaces that connect the top surface and the bottom surface three-dimensionally and have a smaller area than the top surface and the bottom surface, a low refractive layer disposed on a side surface of the light guide plate and having a lower refractive layer than the light guide plate, and a wavelength conversion layer disposed on the low refractive layer, the wavelength conversion layer receiving first wavelength light and converting the first wavelength light into second wavelength light, which is of a different wavelength band from the first wavelength light.Type: GrantFiled: July 10, 2018Date of Patent: October 20, 2020Assignee: Samsung Display Co., Ltd.Inventors: Seong Yong Hwang, Tae Gil Kang, Sang Won Lee
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Publication number: 20200319394Abstract: An optical member and a display device including the same. The optical member includes a light guide plate including a surface disposed on a plane defined by a first direction and a second direction crossing the first direction, a low refractive index pattern disposed on the surface of the light guide plate and including an opening for exposing the surface of the light guide plate, a wavelength conversion layer disposed on the low refractive index pattern, and a passivation layer disposed on the wavelength conversion layer and covering a side surface of the wavelength conversion layer and a side surface of the low refractive index pattern at least one side portion. The low refractive index pattern has a lower index of refraction than the light guide plate, and a ratio of an area occupied by the low refractive index pattern to an area of the surface of the light guide plate decreases in the first direction.Type: ApplicationFiled: June 22, 2020Publication date: October 8, 2020Inventors: Seong Yong HWANG, Young Min Park, Ju Young Yoon, Sung Kyu Shim, Sang Won Lee
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Publication number: 20200292748Abstract: A backlight unit includes a display panel, a light guide plate beneath the display panel, a light source spaced apart from the light guide plate in a first direction, a plurality of first optical patterns beneath the light guide plate while extending in the first direction and being arranged in a second direction intersecting the first direction, and a plurality of second optical patterns beneath the plurality of first optical patterns. Each of the plurality of first optical patterns has a quadrangle shape when viewed in the first direction.Type: ApplicationFiled: February 24, 2020Publication date: September 17, 2020Inventors: JINHO PARK, Seong-Yong HWANG, Hansol KANG, Juyoun SON, JAE SUL AN
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Patent number: 10732343Abstract: An optical member includes a light guide plate, a wavelength conversion layer, and a reflective tape. The wavelength conversion layer is disposed on an upper surface of the light guide plate. The reflective tape includes a first side portion covering first side surfaces of the light guide plate and the wavelength conversion layer. The reflective tape includes a first surface and a second surface. The first surface is configured to reflect light of a first wavelength band and light of a second wavelength band different from the first wavelength band. The second surface is configured to absorb the light of the first wavelength band.Type: GrantFiled: April 3, 2019Date of Patent: August 4, 2020Assignee: Samsung Display Co., Ltd.Inventors: Do Hun Kim, Ji Eun Nam, Young Min Park, You Jin Seo, Hyeon Mi Lee, Hyeon Seon Jeong, Taek Sun Shin, Seong Yong Hwang
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Patent number: 10725224Abstract: An optical member includes a light guide plate, a first low refractive layer, a wavelength conversion layer, and a passivation layer. The first low refractive layer is disposed on the light guide plate. A refractive index of the first low refractive layer is smaller than a refractive index of the light guide plate. The wavelength conversion layer is disposed on the first low refractive layer. The passivation layer is disposed on the wavelength conversion layer. The passivation layer covers a side surface of the wavelength conversion layer and a side surface of the first low refractive layer on at least one side.Type: GrantFiled: November 3, 2017Date of Patent: July 28, 2020Assignee: Samsung Display Co., Ltd.Inventors: Seong Yong Hwang, Jin Ho Park, Tae Gil Kang, Hyuk Hwan Kim, Sang Won Lee, Jae Jin Choi
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Patent number: 10705374Abstract: An optical member including a light guide plate, a low refractive layer disposed on an upper surface of the light guide plate and having a lower refractive index than the light guide plate, a wavelength conversion layer disposed on the low refractive layer, a passivation layer disposed on the wavelength conversion layer and covering a side surface of the wavelength conversion layer and a side surface of the low refractive layer, and an optical pattern formed on a lower surface of the light guide plate.Type: GrantFiled: January 22, 2018Date of Patent: July 7, 2020Assignee: Samsung Display Co., Ltd.Inventors: Sang Won Lee, Seong Yong Hwang, Tae Gil Kang, Sung Hoon Kim, Eun Guk Lee