Patents by Inventor Ji-Hwan Yoon
Ji-Hwan Yoon 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: 20240150113Abstract: A photovoltaic power generation module installation support system according to the present invention comprises: a conveyer device, which assembles a plurality of photovoltaic power generation modules into one string and moves same in one direction; and a loading cart including an accommodation space in which the string moved from the conveyer device is loaded in the direction that is horizontal to the ground, wherein the conveyer device includes one or more end stoppers for providing a vertical alignment line of the photovoltaic power generation module first arranged at one end of a conveyor.Type: ApplicationFiled: March 11, 2022Publication date: May 9, 2024Applicant: SAMSUNG C&T CORPORATIONInventors: Dong Shik KIM, Ji Hwan YOON, Kuk Hwan KIM, Jae Seung CHO
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Patent number: 11936075Abstract: Disclosed are a separator for fuel cells capable of minimizing the volume of a system and the use of sealants, and a stack for fuel cells, more particularly, a stack for solid oxide fuel cells, including the same. Specifically, by adding a metal sheet having a specific shape, position and size to the separator, the stress applied to the sealant can be uniformized, and thus the oxidizing agent and fuel can be separated and electrically isolated using only a piece of sealant. Therefore, the stack for fuel cells is characterized in that there is no variation in temperature, reactant concentration, power, or the like between respective unit cells, so delamination and microcracks do not occur, the volume is minimized, and the power density per unit volume is very high.Type: GrantFiled: December 21, 2021Date of Patent: March 19, 2024Assignee: Korea Institute of Science and TechnologyInventors: Jong Ho Lee, Kyung Joong Yoon, Ji Won Son, Seong Kook Oh, Sang Hyeok Lee, Dong Hwan Kim, Min Jun Oh
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Publication number: 20240019538Abstract: The present disclosure relates to a radar system including a pulse Doppler radar. A method of removing clutter according to the present disclosure includes obtaining chirp rate information on a chirp rate applied to a transmission signal of the pulse Doppler radar, determining a reference Doppler frequency for removing a clutter signal by considering the chirp rate information, and removing a signal having a frequency less than or equal to the reference Doppler frequency.Type: ApplicationFiled: July 5, 2023Publication date: January 18, 2024Applicant: AGENCY FOR DEFENSE DEVELOPMENTInventors: Ji Hwan YOON, Yong Min KIM, Won Jin LEE, Jieun ROH
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Patent number: 11605677Abstract: A display device includes a first base member having a first light-emitting area, a second light-emitting area, and a non-light-emitting area between the first and second light-emitting areas; a second base member on the first base member; a first color filter on a first surface of the second base member that faces the first base member and overlapping with the first light-emitting area; a second color filter on the first surface of the second base member and overlapping with the second light-emitting area; a color pattern on the first surface of the second base member, between the first and second color filters, and overlapping with the non-light-emitting area; a light-shielding member on the color pattern and overlapping with the non-light-emitting area; and a first wavelength conversion pattern on the second color filter and including a first wavelength shifter.Type: GrantFiled: January 25, 2021Date of Patent: March 14, 2023Assignee: Samsung Display Co., Ltd.Inventors: Young Hee Lee, Hyun Shik Lee, Seung Wook Chang, Byoung Seong Jeong, Sang Woo Pyo, Jae Hoon Hwang, Ji Hwan Yoon
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Publication number: 20210151510Abstract: A display device includes a first base member having a first light-emitting area, a second light-emitting area, and a non-light-emitting area between the first and second light-emitting areas; a second base member on the first base member; a first color filter on a first surface of the second base member that faces the first base member and overlapping with the first light-emitting area; a second color filter on the first surface of the second base member and overlapping with the second light-emitting area; a color pattern on the first surface of the second base member, between the first and second color filters, and overlapping with the non-light-emitting area; a light-shielding member on the color pattern and overlapping with the non-light-emitting area; and a first wavelength conversion pattern on the second color filter and including a first wavelength shifter.Type: ApplicationFiled: January 25, 2021Publication date: May 20, 2021Inventors: Young Hee LEE, Hyun Shik LEE, Seung Wook CHANG, Byoung Seong JEONG, Sang Woo PYO, Jae Hoon HWANG, Ji Hwan YOON
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Patent number: 10985220Abstract: A light emitting display device includes a substrate having a first pixel, a second pixel, a third pixel, and an infrared emission portion. The first, second, and third pixels emit light of different colors. The light emitting device also includes a first electrode on the substrate, a second electrode overlapping the first electrode, an emission layer between the first electrode and the second electrode, and an auxiliary layer between the first electrode and the emission layer. The auxiliary layer includes a first auxiliary layer on the first pixel and a second auxiliary layer in the infrared emission portion. The first auxiliary layer and second auxiliary layer include a same material.Type: GrantFiled: July 14, 2019Date of Patent: April 20, 2021Inventors: Sang Woo Lee, Heung Su Park, Ji Hwan Yoon, Jae Hoon Hwang
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Patent number: 10923538Abstract: A display device includes a first base member having a first light-emitting area, a second light-emitting area, and a non-light-emitting area between the first and second light-emitting areas; a second base member on the first base member; a first color filter on a first surface of the second base member that faces the first base member and overlapping with the first light-emitting area; a second color filter on the first surface of the second base member and overlapping with the second light-emitting area; a color pattern on the first surface of the second base member, between the first and second color filters, and overlapping with the non-light-emitting area; a light-shielding member on the color pattern and overlapping with the non-light-emitting area; and a first wavelength conversion pattern on the second color filter and including a first wavelength shifter.Type: GrantFiled: January 13, 2020Date of Patent: February 16, 2021Assignee: Samsung Display Co., Ltd.Inventors: Young Hee Lee, Hyun Shik Lee, Seung Wook Chang, Byoung Seong Jeong, Sang Woo Pyo, Jae Hoon Hwang, Ji Hwan Yoon
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Patent number: 10811463Abstract: A light emitting display device includes a substrate that includes a first pixel, a second pixel, a third pixel, and an infrared ray emission portion, the first pixel, the second pixel, and the third pixel representing different colors, a first electrode on the substrate, a second electrode that overlaps the first electrode, an emission layer between the first electrode and the second electrode, and an auxiliary layer between the first electrode and the emission layer. The emission layer may include a first emission layer in the first pixel and an infrared ray emission layer in the infrared ray emission portion, the auxiliary layer may include a first auxiliary layer in the first pixel, and the infrared ray emission layer and the first auxiliary layer may include the same material.Type: GrantFiled: October 24, 2017Date of Patent: October 20, 2020Assignee: Samsung Display Co., Ltd.Inventors: Hyo Yeon Kim, Yi Seul Kim, Heun Seung Lee, Ji Hwan Yoon, Jae Hoon Hwang
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Publication number: 20200328256Abstract: A display device includes a first base member having a first light-emitting area, a second light-emitting area, and a non-light-emitting area between the first and second light-emitting areas; a second base member on the first base member; a first color filter on a first surface of the second base member that faces the first base member and overlapping with the first light-emitting area; a second color filter on the first surface of the second base member and overlapping with the second light-emitting area; a color pattern on the first surface of the second base member, between the first and second color filters, and overlapping with the non-light-emitting area; a light-shielding member on the color pattern and overlapping with the non-light-emitting area; and a first wavelength conversion pattern on the second color filter and including a first wavelength shifter.Type: ApplicationFiled: January 13, 2020Publication date: October 15, 2020Inventors: Young Hee LEE, Hyun Shik LEE, Seung Wook CHANG, Byoung Seong JEONG, Sang Woo PYO, Jae Hoon HWANG, Ji Hwan YOON
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Publication number: 20190341434Abstract: A light emitting display device includes a substrate having a first pixel, a second pixel, a third pixel, and an infrared emission portion. The first, second, and third pixels emit light of different colors. The light emitting device also includes a first electrode on the substrate, a second electrode overlapping the first electrode, an emission layer between the first electrode and the second electrode, and an auxiliary layer between the first electrode and the emission layer. The auxiliary layer includes a first auxiliary layer on the first pixel and a second auxiliary layer in the infrared emission portion. The first auxiliary layer and second auxiliary layer include a same material.Type: ApplicationFiled: July 14, 2019Publication date: November 7, 2019Inventors: Sang Woo Lee, Heung Su Park, Ji Hwan Yoon, Jae Hoon Hwang
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Patent number: 10388706Abstract: A light emitting display device includes a substrate having a first pixel, a second pixel, a third pixel, and an infrared emission portion. The first, second, and third pixels emit light of different colors. The light emitting device also includes a first electrode on the substrate, a second electrode overlapping the first electrode, an emission layer between the first electrode and the second electrode, and an auxiliary layer between the first electrode and the emission layer. The auxiliary layer includes a first auxiliary layer on the first pixel and a second auxiliary layer in the infrared emission portion. The first auxiliary layer and second auxiliary layer include a same material.Type: GrantFiled: October 19, 2017Date of Patent: August 20, 2019Assignee: Samsung Display Co., Ltd.Inventors: Sang Woo Lee, Heung Su Park, Ji Hwan Yoon, Jae Hoon Hwang
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Patent number: 10283036Abstract: A luminance correction system includes an image pickup device configured to pick up a test image and generate pickup data, a parameter calculation device configured to calculate a first target luminance that is a maximum luminance of a reference area in a display panel and a detected maximum luminance that is a luminance of a correction target sub-pixel based on the pickup data with respect to a maximum grayscale, determine a second target luminance by correcting the first target luminance, and calculate correction parameters, and a display device including the display panel, the display device configured to compensate the input grayscale of the correction target sub-pixel to a target grayscale based on the correction parameters and generate a data voltage by adjusting upward a gamma voltage corresponding to the target grayscale.Type: GrantFiled: February 22, 2017Date of Patent: May 7, 2019Assignee: Samsung Display Co., Ltd.Inventors: Jeong-Geun Yoo, In-Hwan Kim, Ji-Hwan Yoon, Hyun-Ho Lee
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Publication number: 20180261655Abstract: A light emitting display device includes a substrate having a first pixel, a second pixel, a third pixel, and an infrared emission portion. The first, second, and third pixels emit light of different colors. The light emitting device also includes a first electrode on the substrate, a second electrode overlapping the first electrode, an emission layer between the first electrode and the second electrode, and an auxiliary layer between the first electrode and the emission layer. The auxiliary layer includes a first auxiliary layer on the first pixel and a second auxiliary layer in the infrared emission portion. The first auxiliary layer and second auxiliary layer include a same material.Type: ApplicationFiled: October 19, 2017Publication date: September 13, 2018Inventors: Sang Woo LEE, Heung Su PARK, Ji Hwan YOON, Jae Hoon HWANG
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Publication number: 20180261652Abstract: A light emitting display device includes a substrate that includes a first pixel, a second pixel, a third pixel, and an infrared ray emission portion, the first pixel, the second pixel, and the third pixel representing different colors, a first electrode on the substrate, a second electrode that overlaps the first electrode, an emission layer between the first electrode and the second electrode, and an auxiliary layer between the first electrode and the emission layer. The emission layer may include a first emission layer in the first pixel and an infrared ray emission layer in the infrared ray emission portion, the auxiliary layer may include a first auxiliary layer in the first pixel, and the infrared ray emission layer and the first auxiliary layer may include the same material.Type: ApplicationFiled: October 24, 2017Publication date: September 13, 2018Inventors: Hyo Yeon KIM, Yi Seul KIM, Heun Seung LEE, Ji Hwan YOON, Jae Hoon HWANG
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Publication number: 20170249890Abstract: A luminance correction system includes an image pickup device configured to pick up a test image and generate pickup data, a parameter calculation device configured to calculate a first target luminance that is a maximum luminance of a reference area in a display panel and a detected maximum luminance that is a luminance of a correction target sub-pixel based on the pickup data with respect to a maximum grayscale, determine a second target luminance by correcting the first target luminance, and calculate correction parameters, and a display device including the display panel, the display device configured to compensate the input grayscale of the correction target sub-pixel to a target grayscale based on the correction parameters and generate a data voltage by adjusting upward a gamma voltage corresponding to the target grayscale.Type: ApplicationFiled: February 22, 2017Publication date: August 31, 2017Inventors: Jeong-Geun YOO, In-Hwan KIM, Ji-Hwan YOON, Hyun-Ho LEE
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Patent number: 9735387Abstract: An organic light emitting display includes: a substrate; a first electrode on the substrate; an organic light emitting layer on the first electrode; a second electrode formed on the organic light emitting layer; a non-resonance reflection inducing layer on the second electrode; and a capping layer on the non-resonance reflection inducing layer.Type: GrantFiled: September 23, 2016Date of Patent: August 15, 2017Assignee: Samsung Display Co., Ltd.Inventors: Nam Su Kang, Ji Hye Shim, Ji Hwan Yoon, Chang Ho Lee, Hyun Ju Choi
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Patent number: 9711579Abstract: An organic light emitting diode (OLED) display includes a substrate, a thin film transistor disposed on the substrate, a first electrode disposed on the thin film transistor and electrically connected to the thin film transistor, a first auxiliary layer disposed on the first electrode, an emission layer disposed on the first auxiliary layer, an electron transport layer disposed on the emission layer, a first buffer layer disposed on the electron transport layer, and a second electrode disposed on the first buffer layer.Type: GrantFiled: July 1, 2016Date of Patent: July 18, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Il Soo Oh, Chang Ho Lee, Ji Hwan Yoon, Dae Yup Shin, Hee Joo Ko, Se Jin Cho, Jin Young Yun, Bora Lee, Yeon-Woo Lee, Beom Joon Kim, Pyung Eun Jeon, Hyun Ju Choi, Joong Won Sim, In Jae Lee
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Patent number: 9601694Abstract: A donor substrate for a laser transfer includes a base layer, a primer layer disposed on the base layer, a light-to-heat conversion layer disposed on the primer layer, and an intermediate layer disposed on the light-to-heat conversion layer, where the light-to-heat conversion layer includes graphene.Type: GrantFiled: December 18, 2013Date of Patent: March 21, 2017Assignee: SAMSUNG DISPLAY CO., LTDInventors: Ji-Young Kwon, Ji-Hwan Yoon, Sang-Woo Pyo, Ha-Jin Song, Byeong-Wook Yoo, Bum-Suk Lee, Ji-Myoung Ye, Yi-Seul Kim
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Patent number: 9590213Abstract: An organic light-emitting display device, a method of manufacturing the same, and a donor substrate and a donor substrate set used to manufacture the organic light-emitting display device.Type: GrantFiled: June 3, 2015Date of Patent: March 7, 2017Assignee: Samsung Display Co., Ltd.Inventors: Hyo Yeon Kim, Ha Jin Song, Sang-Woo Lee, Hye Yeon Shim, Heun Seung Lee, Kyul Han, Ji Hwan Yoon
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Patent number: RE47578Abstract: An organic light emitting diode (OLED) and a method of manufacturing the same. An auxiliary layer comprising a high density metallic compound and an emission layer are formed by a laser induced thermal imaging (LITI) process. The LITI process reduces manufacturing costs and time by eliminating the need for a mask patterning process. The metallic compound has a density of 2 g/cm3 or greater to promote adhesion and improve interfacial planarization. This results in improved luminance uniformity (i.e. luminance mura) between pixels within an OLED display device.Type: GrantFiled: October 19, 2017Date of Patent: August 20, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kyul Han, Sang-Woo Lee, Hyo-Yeon Kim, Hye-Yeon Shim, Heun-Seung Lee, Sang-Woo Pyo, Ji-Hwan Yoon