Patents by Inventor Gyeong-Woo KIM
Gyeong-Woo 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: 20240134292Abstract: A substrate treatment apparatus according to an aspect of the present invention includes: a support plate that supports a substrate and is provided with a heater member for heating the substrate; and a cooling unit for forcedly cooling the support plate, wherein the cooling unit includes: a cooling housing to provide a cooling space; a plurality of gas feed nozzles that is arranged in the cooling housing and supplies cooling gas toward the heater member; and a plurality of gas feed lines that is directly connected to the gas feed nozzles and supplies the cooling gas transferred from the outside to the gas feed nozzles.Type: ApplicationFiled: October 4, 2023Publication date: April 25, 2024Applicant: SEMES CO., LTD.Inventors: Minhee CHO, Hee Man AHN, Gyeong Won SONG, Jumi LEE, Chun Woo PARK, Byung Hwi KIM
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Patent number: 11956980Abstract: Discussed is an organic light emitting device in which a light emitting layer includes a host and different kinds of dopants, the fluorescent dopant is formed of a material having energy level properties facilitating thermally activated delayed fluorescence (TADF), and thus energy is concentratedly transferred to the fluorescent dopant so as to increase luminous efficacy of a single color.Type: GrantFiled: December 24, 2020Date of Patent: April 9, 2024Assignee: LG DISPLAY CO., LTD.Inventors: Gyeong-Woo Kim, Hong-Seok Choi, Seung-Ryong Joung, Jun-Ho Lee, Yoon-Deok Han, Hee-Su Byeon
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Patent number: 11828943Abstract: Disclosed are a display panel which changes the inner structure of an organic light emitting stack and a color transmission structure so as to improve luminance, and a head mounted display device using the same.Type: GrantFiled: December 18, 2020Date of Patent: November 28, 2023Assignee: LG DISPLAY CO., LTD.Inventors: Seung-Ryong Joung, Sang-Hun Han, Ahn-Ki Kim, Hong-Seok Choi, Yoon-Deok Han, Gyeong-Woo Kim, Jun-Ho Lee, Hee-Su Byeon
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Publication number: 20230345748Abstract: Disclosed are an organic light emitting device and a display device using the same in which a light emitting layer includes a host and a plurality of dopants. In the light emitting layer, energy is transferred from a host and other dopants to one dopant by energy transfer system, thus it is possible to increase luminous efficacy of a single color and to increase lifetime of emission.Type: ApplicationFiled: June 27, 2023Publication date: October 26, 2023Inventors: Gyeong-Woo KIM, Hong-Seok CHOI, Seung-Ryong JOUNG, Yoon-Deok HAN, Jun-Ho LEE, Ji-Seon JANG
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Patent number: 11730006Abstract: Disclosed are an organic light emitting device and a display device using the same in which a light emitting layer includes a host and a plurality of dopants. In the light emitting layer, energy is transferred from a host and other dopants to one dopant by energy transfer system, thus it is possible to increase luminous efficacy of a single color and to increase lifetime of emission.Type: GrantFiled: November 12, 2020Date of Patent: August 15, 2023Assignee: LG Display Co., Ltd.Inventors: Gyeong-Woo Kim, Hong-Seok Choi, Seung-Ryong Joung, Yoon-Deok Han, Jun-Ho Lee, Ji-Seon Jang
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Patent number: 11730013Abstract: Disclosed is a display panel configured such that, in a structure in which the distance between a display surface and a viewer is short, the structure between a reflective plate and a first electrode (an anode) is changed such that light having three or more color peak properties for all subpixels is transmitted through a second electrode (a cathode), whereby white expression as well as color expression is possible, and a head mounted display device including the same.Type: GrantFiled: August 21, 2020Date of Patent: August 15, 2023Assignee: LG Display Co., Ltd.Inventors: Seung-Ryong Joung, Hong-Seok Choi, Yoon-Deok Han, Gyeong-Woo Kim, Jun-Ho Lee, Ji-Seon Jang
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Publication number: 20230209992Abstract: An organic light emitting diode can include a reflective electrode, a transparent electrode facing the reflective electrode, a first emitting part including a first emitting material layer, and a second emitting part including a second emitting material layer. The first emitting material layer can be a fluorescent emitting layer comprising a fourth compound as a fluorescent dopant. The second emitting material layer can be a phosphorescent emitting layer comprising a first compound as a phosphorescent dopant. Preferably, a ratio of a second emission peak intensity of the phosphorescent dopant to the first emission peak intensity of the phosphorescent dopant in the second emitting material layer is 0.5 or less. An organic light emitting device can include the organic light emitting diode and can be used in a display device or a lighting device.Type: ApplicationFiled: October 31, 2022Publication date: June 29, 2023Applicant: LG DISPLAY CO., LTD.Inventors: Han-Jin AHN, Gyeong-Woo KIM, Ji-Seon JANG, Joon-Beom IM, Jun-Yun KIM
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Publication number: 20230200228Abstract: An organic light emitting diode (OLED) is described, which comprises at least one emitting material (EML) disposed between two electrodes. The EML can comprise a first emitting material layer having a first compound and a second compound of phosphorescent material, and a second emitting material layer having a third compound with triplet-triplet-annihilation property and a fourth compound. Further, an organic light emitting device can comprise the OLED. With the luminous materials with adjusted excited singlet/triplet energy levels, the intensities of emission peaks and full-width at quarter maximum applied into the emitting material layer, the driving voltage of the OLED can be reduced and the luminous efficiency, blue index and luminous lifespan of the OLED can be enhanced.Type: ApplicationFiled: October 28, 2022Publication date: June 22, 2023Applicant: LG Display Co., Ltd.Inventors: Gyeong-Woo KIM, Joon-Beom IM, Han-Jin AHN, Jun-Yun KIM
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Publication number: 20220209121Abstract: An organic light emitting diode includes a first electrode; a second electrode facing the first electrode; and a first emitting material layer including a first compound, a second compound and a third compound and positioned between the first and second electrodes, wherein an onset wavelength of the second compound is greater than an onset wavelength of the first compound and is smaller than an onset wavelength of the third compound, wherein a maximum emission wavelength of the second compound is smaller than a maximum emission wavelength of the first compound, and a maximum emission wavelength of the third compound is equal to or smaller than a maximum emission wavelength of the first compound, and wherein a full width at half maximum of each of the second and third compounds is smaller than a full width at half maximum of the first compound.Type: ApplicationFiled: November 11, 2021Publication date: June 30, 2022Applicant: LG DISPLAY CO., LTD.Inventors: Gyeong-Woo KIM, Ji-Seon JANG, Ik-Rang CHOE, Hye-Gun RYU, Han-Jin AHN, Jun-Yun KIM
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Patent number: 11233093Abstract: A head mounted display device comprises a display panel comprising first to third subpixels defined at a substrate, a reflection plate provided in the first, second and third subpixels, first electrodes vertically spaced apart from a lower surface of the reflection plate by a first distance, a second distance and a third distance at the first, second and third subpixels, respectively, a white organic stack on the first electrodes at the first, second and third subpixels, a second electrode on the white organic stack, and a first color filter on the second electrode at the third subpixel to transmit light having a long wavelength.Type: GrantFiled: July 19, 2019Date of Patent: January 25, 2022Assignee: LG DISPLAY CO., LTD.Inventors: Hong-Seok Choi, Yoon-Deok Han, Gyeong-Woo Kim, Jun-Ho Lee
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Publication number: 20210199972Abstract: Disclosed are a display panel which changes the inner structure of an organic light emitting stack and a color transmission structure so as to improve luminance, and a head mounted display device using the same.Type: ApplicationFiled: December 18, 2020Publication date: July 1, 2021Applicant: LG Display Co., Ltd.Inventors: Seung-Ryong JOUNG, Sang-Hun HAN, Ahn-Ki KIM, Hong-Seok CHOI, Yoon-Deok HAN, Gyeong-Woo KIM, Jun-Ho LEE, Hee-Su BYEON
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Publication number: 20210202876Abstract: Discussed is an organic light emitting device in which a light emitting layer includes a host and different kinds of dopants, the fluorescent dopant is formed of a material having energy level properties facilitating thermally activated delayed fluorescence (TADF), and thus energy is concentratedly transferred to the fluorescent dopant so as to increase luminous efficacy of a single color.Type: ApplicationFiled: December 24, 2020Publication date: July 1, 2021Applicant: LG Display Co., Ltd.Inventors: Gyeong-Woo KIM, Hong-Seok CHOI, Seung-Ryong JOUNG, Jun-Ho LEE, Yoon-Deok HAN, Hee-Su BYEON
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Publication number: 20210151703Abstract: Disclosed are an organic light emitting device and a display device using the same in which a light emitting layer includes a host and a plurality of dopants. In the light emitting layer, energy is transferred from a host and other dopants to one dopant by energy transfer system, thus it is possible to increase luminous efficacy of a single color and to increase lifetime of emission.Type: ApplicationFiled: November 12, 2020Publication date: May 20, 2021Inventors: Gyeong-Woo KIM, Hong-Seok CHOI, Seung-Ryong JOUNG, Yoon-Deok HAN, Jun-Ho LEE, Ji-Seon JANG
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Publication number: 20210066663Abstract: Disclosed is a display panel configured such that, in a structure in which the distance between a display surface and a viewer is short, the structure between a reflective plate and a first electrode (an anode) is changed such that light having three or more color peak properties for all subpixels is transmitted through a second electrode (a cathode), whereby white expression as well as color expression is possible, and a head mounted display device including the same.Type: ApplicationFiled: August 21, 2020Publication date: March 4, 2021Inventors: Seung-Ryong JOUNG, Hong-Seok CHOI, Yoon-Deok HAN, Gyeong-Woo KIM, Jun-Ho LEE, Ji-Seon JANG
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Publication number: 20200027932Abstract: A head mounted display device comprises a display panel comprising first to third subpixels defined at a substrate, a reflection plate provided in the first, second and third subpixels, first electrodes vertically spaced apart from a lower surface of the reflection plate by a first distance, a second distance and a third distance at the first, second and third subpixels, respectively, a white organic stack on the first electrodes at the first, second and third subpixels, a second electrode on the white organic stack, and a first color filter on the second electrode at the third subpixel to transmit light having a long wavelength.Type: ApplicationFiled: July 19, 2019Publication date: January 23, 2020Applicant: LG Display Co., Ltd.Inventors: Hong-Seok CHOI, Yoon-Deok HAN, Gyeong-Woo KIM, Jun-Ho LEE