Patents by Inventor Ji-Yun Jang
Ji-Yun Jang 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: 20240180043Abstract: Disclosed is a heterojunction semiconductor flexible substrate in which an epitaxial oxide thin film layer is hetero-bonded to a thinned silicon substrate using a metal layer, a manufacturing method thereof, and the heterojunction semiconductor flexible substrate can be applied to sensor, actuator, transducer, or micro electro mechanical systems (MEMS) device using high functionality of the epitaxial oxide thin film layer of high quality as well as an electronic and/or optical device.Type: ApplicationFiled: November 16, 2023Publication date: May 30, 2024Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Seung Hyub BAEK, Min Seok KIM, Ji-Soo JANG, Sunghoon HUR, Jungho YOON, Hyun-Cheol SONG, Seong Keun KIM, Ji-Won CHOI, Jin Sang KIM, Chong Yun KANG
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Publication number: 20240180041Abstract: The present invention relates to a heterojunction semiconductor substrate having excellent dielectric properties, a method of manufacturing the same, and an electronic device using the same. The present invention provides a heterojunction semiconductor substrate with improved interlayer adhesion, low leakage current, and excellent dielectric properties that maintain strength in a ferroelectric fatigue experiment by interposing a metal layer and a conductive metal oxide layer on a semiconductor substrate to form an epitaxial oxide thin film layer composed of perovskite piezoelectric oxide. The heterojunction semiconductor substrate can be applied to sensors, actuators, transducers, or MEMS devices that use the high functionality of the high-quality epitaxial oxide thin film layer, including applications in electronic and optical devices.Type: ApplicationFiled: November 29, 2023Publication date: May 30, 2024Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Seung Hyub BAEK, Soo Young JUNG, Sunghoon HUR, Ji-Soo JANG, Jungho YOON, Hyun-Cheol SONG, Seong Keun KIM, Chong Yun KANG, Ji-Won CHOI, Jin Sang KIM
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Publication number: 20240179932Abstract: The present disclosure relates to an organic light emitting diode and an organic light emitting device including the same. The organic light emitting diode includes a first electrode; a second electrode facing the first electrode; and a first blue emitting material layer including a first compound and a second compound and positioned between the first and second electrodes, wherein the first compound is represented by Formula 1, and the second compound is represented by Formula 3. According to an aspect of the present disclosure, it is allowed to provide an OLED and an organic light emitting device having high emitting efficiency and/or improved lifespan.Type: ApplicationFiled: October 31, 2023Publication date: May 30, 2024Applicants: LG DISPLAY CO., LTD., LT Materials Co.,LtdInventors: Ji-Seon JANG, Chi-Ho LEE, Suk-Young BAE, Han-Jin AHN, Jun-Yun KIM, Dae-Hyuk CHOI, Dong-Jun KIM, Yong-Woo KIM, Yong-Geun JUNG, Jin-Hwan SHIN, Seok-Hyeon YU
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Publication number: 20240148871Abstract: The present invention relates to a hydrogel composition comprising a chloroplast, a chloroplast transit peptide, alginate, and a pancreatic cell, and can supply oxygen to a cell or a tissue and control carbon dioxide and exhibits excellent preventive or therapeutic effects on diseases such as diabetes, etc., and thus may be utilized in the tissue engineering field such as organ transplant.Type: ApplicationFiled: March 18, 2022Publication date: May 9, 2024Applicant: IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANGInventors: Dong Yun LEE, Seon Mi JANG, Chae Rim YOO, Ji Yun Kim
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Patent number: 11974492Abstract: A display device includes a first region, a second region adjacent to a side of the first region, and a third region adjacent to another side of the first region; a display panel in the first region, the second region and the third region; a window on and overlapping the display panel; and a bonding member between the display panel and the window and in the first region, the second region and the third region. The bonding member includes a first bonding part having a first elastic modulus and in the first region, a second bonding part having a second elastic modulus and in the second region, and a third bonding part having a third elastic modulus and in the third region. The first elastic modulus is greater than each of the second elastic modulus and the third elastic modulus.Type: GrantFiled: December 16, 2020Date of Patent: April 30, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kyoung Ah Lee, Min Gu Kim, Ji Soo Kim, Hyo Yul Yoon, Eui Yun Jang
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Patent number: 11966119Abstract: An optical film for a display device, includes: a first refractive layer having an upper surface and a lower surface including first projections and second projections extending away from the lower surface in a first direction, the second projections having different heights than the first projections, the first projections having lateral sides with different angles of inclination that decrease in the first direction; and a second refractive layer disposed directly on the upper surface of the first refractive layer, the second refractive layer having a refractive index different from that of the first refractive layer.Type: GrantFiled: August 28, 2020Date of Patent: April 23, 2024Assignee: Samsung Display Co., Ltd.Inventors: Hye Lim Jang, Young Gu Kim, Ji Yun Park, Jong Ho Son, Jong Min Ok, Sun Young Chang, Baek Kyun Jeon, Kyung Seon Tak
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Patent number: 11930684Abstract: Provided is a display device. The display device includes a first base portion, a second base portion facing the first base portion, a light emitting layer disposed on one surface of the first base portion and emitting first light, a first wavelength conversion pattern disposed on the light emitting layer and converting the first light into second light having a different wavelength from the first light, a first color filter overlapping the first wavelength conversion pattern on one surface of the second base portion and spaced apart from the first wavelength conversion pattern, and an air layer interposed between the first wavelength conversion pattern and the first color filter.Type: GrantFiled: June 3, 2021Date of Patent: March 12, 2024Assignee: Samsung Display Co., Ltd.Inventors: Chang Soon Jang, Keun Chan Oh, Gak Seok Lee, Sang Hun Lee, So Yun Lee, Ji Eun Jang
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Patent number: 11009634Abstract: The present disclosure provides a structural color filter comprising: a substrate; a metal layer disposed on the substrate; and semiconductor gratings disposed on the metal layer, wherein each of the semiconductor gratings is elongated in a first direction, wherein the semiconductor gratings are arranged to be spaced apart from each other in a second direction perpendicular to the first direction, wherein the semiconductor gratings have the same thickness, wherein the thickness is smaller than a wavelength of visible-light.Type: GrantFiled: January 17, 2018Date of Patent: May 18, 2021Assignee: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITYInventors: Hui Joon Park, Kyu Tae Lee, Ji Yun Jang
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Patent number: 10310343Abstract: Disclosed is a display panel in which a black matrix is formed on an upper substrate, which is disposed so as to face a lower substrate, so as to delimit each pixel area, a plurality of light control partitions is provided in the pixel area of the upper substrate, a color filter is provided in the pixel area of the upper substrate, and an overcoat layer is provided over the entire surface of the upper substrate. The light control partitions are formed in the pixel area simultaneously with the formation of the black matrix, which enables the omission of an existing light control film. Thereby, a narrow viewing angle is realized without increasing the thickness or manufacturing cost of a product.Type: GrantFiled: November 29, 2017Date of Patent: June 4, 2019Assignee: LG DISPLAY CO., LTD.Inventors: Hoon-Sub Shin, Mi-Kyung Lee, Ji-Yun Jang, Jun-Sung Kong, Yong-Hee Han, Eun-Young Yun
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Publication number: 20180203170Abstract: The present disclosure provides a structural color filter comprising: a substrate; a metal layer disposed on the substrate; and semiconductor gratings disposed on the metal layer, wherein each of the semiconductor gratings is elongated in a first direction, wherein the semiconductor gratings are arranged to be spaced apart from each other in a second direction perpendicular to the first direction, wherein the semiconductor gratings have the same thickness, wherein the thickness is smaller than a wavelength of visible-light.Type: ApplicationFiled: January 17, 2018Publication date: July 19, 2018Applicant: Industry-Academic Cooperation Foundation of Ajou UniversityInventors: Hui Joon PARK, Kyu Tae LEE, Ji Yun JANG
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Publication number: 20180149936Abstract: Disclosed is a display panel in which a black matrix is formed on an upper substrate, which is disposed so as to face a lower substrate, so as to delimit each pixel area, a plurality of light control partitions is provided in the pixel area of the upper substrate, a color filter is provided in the pixel area of the upper substrate, and an overcoat layer is provided over the entire surface of the upper substrate. The light control partitions are formed in the pixel area simultaneously with the formation of the black matrix, which enables the omission of an existing light control film. Thereby, a narrow viewing angle is realized without increasing the thickness or manufacturing cost of a product.Type: ApplicationFiled: November 29, 2017Publication date: May 31, 2018Applicant: LG DISPLAY CO., LTD.Inventors: Hoon-Sub SHIN, Mi-Kyung LEE, Ji-Yun JANG, Jun-Sung KONG, Yong-Hee HAN, Eun-Young YUN
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Patent number: 8350997Abstract: A Liquid Crystal Display (LCD) device includes: a panel on which images are implemented; a backlight device below the panel and providing light; and a polarizer including a linear-polarizing layer over the panel that linear-polarizes light from the backlight device and a circular-polarizing layer over the linear-polarizing layer that circular-polarizes the linear-polarized light.Type: GrantFiled: December 15, 2008Date of Patent: January 8, 2013Assignee: LG Display Co., Ltd.Inventors: Mi-Kyung Lee, Ji-Yun Jang
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Publication number: 20090303421Abstract: A Liquid Crystal Display (LCD) device includes: a panel on which images are implemented; a backlight device below the panel and providing light; and a polarizer including a linear-polarizing layer over the panel that linear-polarizes light from the backlight device and a circular-polarizing layer over the linear-polarizing layer that circular-polarizes the linear-polarized light.Type: ApplicationFiled: December 15, 2008Publication date: December 10, 2009Inventors: Mi-Kyung Lee, Ji-Yun Jang