Patents by Inventor Jin-Seock Ma
Jin-Seock Ma 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: 11956998Abstract: A display device includes: a first substrate including a pixel area and a transmissive area; a thin-film transistor on the first substrate; a planarization layer on the thin-film transistor; a first light emitting electrode on the planarization layer; a bank covering a part of the first light emitting electrode; a light emitting layer on the first light emitting electrode; and a second light emitting electrode on the light emitting layer and the bank. The transmissive area includes a transmissive hole penetrating the bank and the planarization layer.Type: GrantFiled: January 4, 2023Date of Patent: April 9, 2024Assignee: Samsung Display Co., Ltd.Inventors: Se Wan Son, Moo Soon Ko, Rae Young Gwak, Jin Seock Ma, Min Jeong Park, Ki Bok Yoo, So La Lee, Jin Goo Jung, Jong Won Chae, Ye Ji Han
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Publication number: 20230345766Abstract: A display device includes a base layer including a plurality of pixel regions, which include a first pixel region, a second pixel region, and a non-pixel region, a pixel defining film disposed on the non-pixel region of the base layer and including a pixel opening disposed corresponding to each of the plurality of pixel regions, and a light-emitting element layer. A valley pattern surrounding a portion of each of the plurality of pixel regions is defined in the pixel defining film and includes a first valley pattern and a second valley pattern. An opening portion is defined at which the valley pattern does not surround the pixel regions and includes a first opening portion and a second opening portion. The first opening portion and the second opening portion do not face each other.Type: ApplicationFiled: January 30, 2023Publication date: October 26, 2023Applicant: Samsung Display Co., Ltd.Inventors: DONGHYEOK LEE, SEUNGGYU TAE, MOOSOON KO, JIN SEOCK MA, YONGHO YANG, KI-BOK YOO, JIN-SUK LEE
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Publication number: 20230209891Abstract: A display device includes: a first display area including a first pixel circuit portion and a first light emitting element electrically connected each other; a 2-1 display area including a 2-1 pixel circuit portion, a 2-1 light emitting element electrically connected each other, and a 2-2 pixel circuit portion; and a 2-2 display area including a 2-2 light emitting element electrically connected with the 2-2 pixel circuit portion, and a light transmissive area. The first pixel circuit portion is disposed lower than the first light emitting element in a cross-sectional view, and the 2-1 pixel circuit portion is disposed lower than the 2-1 light emitting element in a cross-sectional view. The 2-2 light emitting element includes a first electrode, an emission layer, and a second electrode, and the 2-2 display area includes a low reflective layer that overlaps the first electrode in a plan view.Type: ApplicationFiled: July 26, 2022Publication date: June 29, 2023Applicant: Samsung Display Co., LTD.Inventor: Jin Seock MA
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Publication number: 20230157069Abstract: A light emitting display device includes: a first display area that includes a first pixel circuit part and a first light emitting element connected to the first pixel circuit part; a (2-1)-th display area that includes a (2-1)-th pixel circuit part, a (2-1)-th light emitting element connected to the (2-1)-th pixel circuit part, and a (2-2)-th pixel circuit part; and a (2-2)-th display area that includes a (2-2)-th light emitting element connected to the (2-2)-th pixel circuit part and a light transmitting area, wherein the first pixel circuit part of the first display area is below the first light emitting element, the (2-1)-th pixel circuit part of the (2-1)-th display area is below the (2-1)-th light emitting element, and at least one organic film in the first pixel circuit part and the (2-1)-th pixel circuit part is not included in the light transmitting area.Type: ApplicationFiled: June 24, 2022Publication date: May 18, 2023Inventors: Jin Seock MA, Sola LEE, Kyung Hyun CHOI
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Publication number: 20230157076Abstract: A display device includes: a first substrate including a pixel area and a transmissive area; a thin-film transistor on the first substrate; a planarization layer on the thin-film transistor; a first light emitting electrode on the planarization layer; a bank covering a part of the first light emitting electrode; a light emitting layer on the first light emitting electrode; and a second light emitting electrode on the light emitting layer and the bank. The transmissive area includes a transmissive hole penetrating the bank and the planarization layer.Type: ApplicationFiled: January 4, 2023Publication date: May 18, 2023Inventors: Se Wan SON, Moo Soon KO, Rae Young GWAK, Jin Seock MA, Min Jeong PARK, Ki Bok YOO, So La LEE, Jin Goo JUNG, Jong Won CHAE, Ye Ji HAN
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Patent number: 11641767Abstract: A display device includes: a substrate comprising a first layer and a second layer; a first display area including a first pixel area on the substrate; a second display area including a second pixel area and a transparent area adjacent to each other on the substrate; and a blocking layer disposed in the second pixel area of the second display area, and disposed between a first layer and a second layer of the substrate in a side view, and the blocking layer including a metal blocks light.Type: GrantFiled: December 31, 2020Date of Patent: May 2, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jong Won Chae, Moo Soon Ko, Jin Seock Ma, Sung Hoon Moon, Se Wan Son, Yong-Je Jeon, Jin Goo Jung
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Publication number: 20230030952Abstract: A display device includes a substrate having a first area and a second area, wherein the first area includes a transmissive area and a non-transmissive area adjacent to the transmissive area and the second area has transmittance less than the first area, a display portion disposed in the non-transmissive area of the first area and the second area and disposed on the substrate, a conductive layer disposed between the substrate and the display portion and defining a plurality of first openings overlapping the transmissive area, a low reflection layer disposed between the substrate and the conductive layer, overlapping the conductive layer, and defining a plurality of second openings overlapping the transmissive area and a polarizing film disposed under the substrate, overlapping the conductive layer, and defining a plurality of third openings overlapping the transmissive area.Type: ApplicationFiled: July 25, 2022Publication date: February 2, 2023Inventors: JIN SEOCK MA, MOOSOON KO, DONGHOON KIM, SANGHOON YIM, DONGJO KIM, YOUNGJI KIM
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Patent number: 11569322Abstract: A display device includes: a substrate including a display area and a transmission area; a blocking layer disposed in the display area of the substrate and including a first blocking layer and a second blocking layer that is disposed on the first blocking layer; an insulating layer disposed on the blocking layer; a transistor disposed on the insulating layer; and a light emitting element connected to the transistor, wherein a first reflectivity of the first blocking layer is smaller than a second reflectivity of the second blocking layer, and a first absorption coefficient of the first blocking layer is smaller than a second absorption coefficient of the second blocking layer.Type: GrantFiled: March 23, 2021Date of Patent: January 31, 2023Inventors: Jin Seock Ma, Gyung Min Baek, Hyun Eok Shin, Ju Hyun Lee, Moo Soon Ko, Jin Goo Jung, Kyung Hyun Choi
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Patent number: 11552150Abstract: A display device includes: a first substrate including a pixel area and a transmissive area; a thin-film transistor on the first substrate; a planarization layer on the thin-film transistor; a first light emitting electrode on the planarization layer; a bank covering a part of the first light emitting electrode; a light emitting layer on the first light emitting electrode; and a second light emitting electrode on the light emitting layer and the bank. The transmissive area includes a transmissive hole penetrating the bank and the planarization layer.Type: GrantFiled: December 9, 2020Date of Patent: January 10, 2023Assignee: Samsung Display Co., Ltd.Inventors: Se Wan Son, Moo Soon Ko, Rae Young Gwak, Jin Seock Ma, Min Jeong Park, Ki Bok Yoo, So La Lee, Jin Goo Jung, Jong Won Chae, Ye Ji Han
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Publication number: 20220302420Abstract: A display device includes a substrate that includes a display area and a transmissive area, a first blocking layer that is disposed on the display area of the substrate, and disposed on a first surface of the substrate, a second blocking layer that is disposed in the display area of the substrate, and disposed on a second surface of the substrate opposite to the first surface, an insulation layer that is disposed on the first blocking layer, a transistor that is disposed on the insulation layer, and a light emitting element that is connected to the transistor.Type: ApplicationFiled: January 11, 2022Publication date: September 22, 2022Inventors: Jin Seock MA, Moo Soon KO, Se Wan SON, Jin Goo JUNG, Kyung Hyun CHOI
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Publication number: 20220037419Abstract: A display device includes: a substrate including a display area and a transmission area; a blocking layer disposed in the display area of the substrate and including a first blocking layer and a second blocking layer that is disposed on the first blocking layer; an insulating layer disposed on the blocking layer; a transistor disposed on the insulating layer; and a light emitting element connected to the transistor, wherein a first reflectivity of the first blocking layer is smaller than a second reflectivity of the second blocking layer, and a first absorption coefficient of the first blocking layer is smaller than a second absorption coefficient of the second blocking layer.Type: ApplicationFiled: March 23, 2021Publication date: February 3, 2022Inventors: Jin Seock MA, Gyung Min BAEK, Hyun Eok SHIN, Ju Hyun LEE, Moo Soon KO, Jin Goo JUNG, Kyung Hyun CHOI
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Publication number: 20210335955Abstract: A display device includes: a first substrate including a pixel area and a transmissive area; a thin-film transistor on the first substrate; a planarization layer on the thin-film transistor; a first light emitting electrode on the planarization layer; a bank covering a part of the first light emitting electrode; a light emitting layer on the first light emitting electrode; and a second light emitting electrode on the light emitting layer and the bank. The transmissive area includes a transmissive hole penetrating the bank and the planarization layer.Type: ApplicationFiled: December 9, 2020Publication date: October 28, 2021Inventors: Se Wan SON, Moo Soon KO, Rae Young GWAK, Jin Seock MA, Min Jeong PARK, Ki Bok YOO, So La LEE, Jin Goo JUNG, Jong Won CHAE, Ye Ji HAN
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Publication number: 20210280658Abstract: A display device includes: a substrate comprising a first layer and a second layer; a first display area including a first pixel area on the substrate; a second display area including a second pixel area and a transparent area adjacent to each other on the substrate; and a blocking layer disposed in the second pixel area of the second display area, and disposed between a first layer and a second layer of the substrate in a side view, and the blocking layer including a metal blocks light.Type: ApplicationFiled: December 31, 2020Publication date: September 9, 2021Inventors: Jong Won CHAE, Moo Soon KO, Jin Seock MA, Sung Hoon MOON, Se Wan SON, Yong-Je JEON, Jin Goo JUNG
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Patent number: 7994555Abstract: A spin transistor useful for device miniaturization and high-density integration is provided. The spin transistor includes: a semiconductor substrate including a channel layer; ferromagnetic source and drain disposed on the semiconductor substrate to be separated from each other and to be magnetized in a direction perpendicular to a surface of the channel layer; a gate formed on the semiconductor substrate between the source and the drain to adjust spins of electrons passing through the channel layer, wherein spin-polarized electrons are injected from the source to the channel layer, and the electrons injected into the channel layer pass though the channel layer and are injected into the drain, and wherein the spins of the electrons passing through the channel layer undergo precession due to a spin-orbit coupling induced magnetic field according to a voltage of the gate.Type: GrantFiled: December 3, 2007Date of Patent: August 9, 2011Assignee: Korea Institute of Science and TechnologyInventors: Hyun-Cheol Koo, Suk-Hee Han, Joon-Yeon Chang, Hyung-Jun Kim, Jin-Seock Ma
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Publication number: 20080308844Abstract: A spin transistor useful for device miniaturization and high-density integration is provided. The spin transistor includes: a semiconductor substrate including a channel layer; ferromagnetic source and drain disposed on the semiconductor substrate to be separated from each other and to be magnetized in a direction perpendicular to a surface of the channel layer; a gate formed on the semiconductor substrate between the source and the drain to adjust spins of electrons passing through the channel layer, wherein spin-polarized electrons are injected from the source to the channel layer, and the electrons injected into the channel layer pass though the channel layer and are injected into the drain, and wherein the spins of the electrons passing through the channel layer undergo precession due to a spin-orbit coupling induced magnetic field according to a voltage of the gate.Type: ApplicationFiled: December 3, 2007Publication date: December 18, 2008Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Hyun-Cheol Koo, Suk-Hee Han, Joon-Yeon Chang, Hyung-Jun Kim, Jin-Seock Ma