Patents by Inventor Joon-bae Lee
Joon-bae Lee 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: 20240164206Abstract: The present invention relates to: a pyrene derivative compound having a specific structure; and a high efficiency organic light-emitting device employing the pyrene derivative compound in a light emitting layer and thus having excellent light-emitting characteristics. The organic light-emitting device according to the present invention can be configured as a high efficiency organic light-emitting device having excellent light-emitting characteristics by employing the pyrene derivative compound having the specific structure as a host in the light emitting layer, and thus can be usefully applied industrially in lighting devices, as well as various display devices such as flat, flexible, and wearable displays.Type: ApplicationFiled: February 15, 2022Publication date: May 16, 2024Inventors: Se-jin LEE, Si-in KIM, Seok-bae PARK, Hee-dae KIM, Yeong-tae CHOI, Seung-soo LEE, Ji-yung KIM, Kyeong-hyeon KIM, Kyung-tae KIM, Myeong-jun KIM, Tae-gyun LEE, Joon-ho KIM
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Publication number: 20240155938Abstract: An organic light-emitting device according to the present invention uses a pyrene derivative compound having a characteristic structure as a host in a light-emitting layer to realize a long-lifespan and high-efficiency organic light-emitting device having excellent light-emitting characteristics in terms of lifespan and luminescence efficiency. Accordingly, the organic light-emitting device can be usefully applied, in the industrial aspect, for various display devices such as flat panel, flexible, and wearable displays, as well as lighting devices.Type: ApplicationFiled: February 15, 2022Publication date: May 9, 2024Inventors: Se-jin LEE, Si-in KIM, Seok-bae PARK, Hee-dae KIM, Yeong-tae CHOI, Seung-soo LEE, Ji-yung KIM, Kyeong-hyeon KIM, Kyung-tae KIM, Myeong-jun KIM, Tae-gyun LEE, Joon-ho KIM
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Publication number: 20240090318Abstract: The present invention relates to a novel heterocyclic compound usable in an organic light-emitting device and to an organic light-emitting device comprising same, wherein [chemical formula A] is as described in the detailed description of the invention.Type: ApplicationFiled: December 28, 2021Publication date: March 14, 2024Inventors: Se-Jin LEE, Seok-Bae PARK, Si-In KIM, Hee-Dae KIM, Yeong-Tae CHOI, Ji-Yung KIM, Kyung-Tae KIM, Myeong-Jun KIM, Kyeong-hyeon KIM, Seung-soo LEE, Tae Gyun LEE, Joon-Ho KIM
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Patent number: 11919122Abstract: A substrate processing apparatus includes: a conveyor belt configured to have an outer surface on which a bottom surface of a substrate is seated; and a polishing head unit configured to face an upper surface of the substrate, wherein the polishing head unit includes: a polishing head connected to a driver; a polishing pad configured to face the polishing head; a polishing pad fixing ring disposed between the polishing head and the polishing pad; and a temperature sensor configured to overlap the polishing pad fixing ring and to be spaced apart from the polishing pad fixing ring.Type: GrantFiled: September 29, 2020Date of Patent: March 5, 2024Assignees: SAMSUNG DISPLAY CO., LTD., KCTECH CO., LTD.Inventors: Seung Bae Kang, Sung Hyeon Park, Jung Gun Nam, Joon-Hwa Bae, Kyung Bo Lee, Keun Woo Lee, Woo Jin Cho, Byoung Kwon Choo
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Patent number: 11644414Abstract: The present disclosure relates to a ferrocene-based compound having high selectivity for sulfide ion. The ferrocene-based compound is obtained by reacting a ferrocene starting material with one or more organic compound selected from a nitrile, a methyl ester and an ethyl ester, and a chemical sensor in solution state is prepared by mixing the compound with an organic solvent. The chemical sensor according to the present disclosure has high selectivity and sensitivity for sulfide ion even at low concentration and may be used as a chemical sensor for detecting hydrogen sulfide in solution state by allowing visual inspection of sulfide ion.Type: GrantFiled: March 2, 2021Date of Patent: May 9, 2023Assignee: REPUBLIC OF KOREA (NATIONAL FORENSIC SERVICE DIRECTOR MINISTRY OF INTERIOR AND SAFETY)Inventors: Dae-Jun Ahn, Mia Kwon, Jisook Min, Joon-Bae Lee, Dong-Kye Lee, Byeong-Yeol Song
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Publication number: 20210333199Abstract: The present disclosure relates to a ferrocene-based compound having high selectivity for sulfide ion. The ferrocene-based compound is obtained by reacting a ferrocene starting material with one or more organic compound selected from a nitrile, a methyl ester and an ethyl ester, and a chemical sensor in solution state is prepared by mixing the compound with an organic solvent. The chemical sensor according to the present disclosure has high selectivity and sensitivity for sulfide ion even at low concentration and may be used as a chemical sensor for detecting hydrogen sulfide in solution state by allowing visual inspection of sulfide ion.Type: ApplicationFiled: March 2, 2021Publication date: October 28, 2021Applicant: REPUBLIC OF KOREA(NATIONAL FORENSIC SERVICE DIRECTOR MINISTRY OF INTERIOR ANDInventors: Dae-Jun AHN, Mia Kwon, Jisook Min, Joon-Bae Lee, Dong-Kye Lee, Byeong-Yeol Song
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Patent number: 6815887Abstract: An organic electroluminescent display (EL) device including a transparent substrate, a first electrode unit formed on the transparent substrate in a predetermined pattern and made of a transparent conductive material, an organic EL unit including organic layers having a predetermined pattern, stacked on the first electrode unit, a second electrode unit corresponding to the first electrode unit, formed on the organic EL unit in a predetermined pattern, and an encapsulation layer to encapsulate the first electrode unit, the organic EL unit and the second electrode unit to protect the same, the encapsulation layer including a first component and a second component made of one or more metals selected from the group consisting of iron (Fe), cobalt (Co), vanadium (V), titanium (Ti), aluminium (Al), silver (Ag) and platinum (Pt).Type: GrantFiled: March 18, 2002Date of Patent: November 9, 2004Assignee: Samsung SDI Co., Ltd.Inventors: Joon-bae Lee, Chang-won Park, Jin-woo Park, Dong-chan Shin
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Plate for a plasma display panel (PDP), method for fabricating the plate, and a PDP having the plate
Patent number: 6674237Abstract: A plate for a plasma display panel includes a plate member formed of a transparent material, a series of electrodes formed in a predetermined pattern on the plate member, and a dielectric layer formed on the plate member to cover the electrodes, wherein the electrodes are formed of a dielectric first component, and a metallic second component of at least one metal selected from a group consisting of iron (Fe), cobalt (Co), vanadium (V), titanium (Ti), aluminum (Al), silver (Ag), silicon (Si), germanium (Ge), yttrium (Y), zinc (Zn), zirconium (Zr), tungsten (W), tantalum (Ta), copper (Cu), and platinum (Pt).Type: GrantFiled: September 10, 2001Date of Patent: January 6, 2004Assignee: Samsung SDI Co., Ltd.Inventors: Young-rag Do, Chang-won Park, Joon-bae Lee, Chaun-gi Choi -
Patent number: 6627322Abstract: A functional film includes a transition layer having a first constituent and a second constituent having gradual content gradients according to a thickness of the functional film. The first constituent is at least one dielectric material selected from the group consisting of SiOx (x>1), MgF2, CaF2, Al2O3, SnO2, In2O3 and ITO, and the second constituent is at least one material selected from the group consisting of iron (Fe), cobalt (Co), titanium (Ti), vanadium (V), aluminum (Al), silver (Ag), silicon (Si), germanium (Ge), yttrium (Y), zinc (Zn), zirconium (Zr), tungsten (W) and tantalum (Ta).Type: GrantFiled: November 28, 2001Date of Patent: September 30, 2003Assignee: Samsung SDI Co., Ltd.Inventors: Chaun-gi Choi, Young-rag Do, Joon-bae Lee, Chang-won Park
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Patent number: 6623862Abstract: A functional film including a transition layer including a first constituent selected from aluminum and silicon and at least one second constituent selected from oxygen and nitrogen, the first and second constituents having gradual content gradients according to a thickness of the functional film.Type: GrantFiled: November 28, 2001Date of Patent: September 23, 2003Assignee: Samsung SDI Co., Ltd.Inventors: Chaun-gi Choi, Young-rag Do, Joon-bae Lee, Chang-won Park
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Publication number: 20030117071Abstract: An organic electroluminescent display (EL) device including a transparent substrate, a first electrode unit formed on the transparent substrate in a predetermined pattern and made of a transparent conductive material, an organic EL unit including organic layers having a predetermined pattern, stacked on the first electrode unit, a second electrode unit corresponding to the first electrode unit, formed on the organic EL unit in a predetermined pattern, and an encapsulation layer to encapsulate the first electrode unit, the organic EL unit and the second electrode unit to protect the same, the encapsulation layer including a first component and a second component made of one or more metals selected from the group consisting of iron (Fe), cobalt (Co), vanadium (V), titanium (Ti), aluminium (Al), silver (Ag) and platinum (Pt).Type: ApplicationFiled: March 18, 2002Publication date: June 26, 2003Applicant: Samsung SDI Co., Ltd.Inventors: Joon Bae Lee, Chang-Won Park, Jin-Woo Park, Dong-Chan Shin
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Patent number: 6579624Abstract: A functional film includes a transition layer having a first constituent having SiO as a dielectric material and at least one second constituent selected from aluminum (Al), silver (Ag), silicon (Si), germanium (Ge), yttrium (Y), zinc (Zn), zirconium (Zr), tungsten (W) and tantalum (Ta). The first and second constituents have corresponding gradual content gradients according to a thickness of the functional film.Type: GrantFiled: November 28, 2001Date of Patent: June 17, 2003Assignee: Samsung SDI Co., Ltd.Inventors: Chaun-gi Choi, Young-rag Do, Joon-bae Lee, Chang-won Park
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Plate for a plasma display panel (PDP), method for fabricating the plate, and a PDP having the plate
Publication number: 20020190652Abstract: A plate for a plasma display panel includes a plate member formed of a transparent material, a series of electrodes formed in a predetermined pattern on the plate member, and a dielectric layer formed on the plate member to cover the electrodes, wherein the electrodes are formed of a dielectric first component, and a metallic second component of at least one metal selected from a group consisting of iron (Fe), cobalt (Co), vanadium (V), titanium (Ti), aluminum (Al), silver (Ag), silicon (Si), germanium (Ge), yttrium (Y), zinc (Zn), zirconium (Zr), tungsten (W), tantalum (Ta), copper (Cu), and platinum (Pt).Type: ApplicationFiled: September 10, 2001Publication date: December 19, 2002Applicant: Samsung SDI Co., Ltd.Inventors: Young-Rag Do, Chang-Won Park, Joon-Bae Lee, Chaun-Gi Choi -
Publication number: 20020187354Abstract: A functional film including a transition layer including a first constituent selected from aluminum and silicon and at least one second constituent selected from oxygen and nitrogen, the first and second constituents having gradual content gradients according to a thickness of the functional film.Type: ApplicationFiled: November 28, 2001Publication date: December 12, 2002Applicant: SAMSUNG SDI CO., LTD.Inventors: Chaun-Gi Choi, Young-Rag Do, Joon-Bae Lee, Chang-Won Park
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Publication number: 20020160218Abstract: A functional film includes a transition layer having a first constituent having SiO as a dielectric material and at least one second constituent selected from aluminum (Al), silver (Ag), silicon (Si), germanium (Ge), yttrium (Y), zinc (Zn), zirconium (Zr), tungsten (W) and tantalum (Ta). The first and second constituents have corresponding gradual content gradients according to a thickness of the functional film.Type: ApplicationFiled: November 28, 2001Publication date: October 31, 2002Applicant: SAMSUNG SDI CO., LTD.Inventors: Chaun-gi Choi, Young-rag Do, Joon-bae Lee, Chang-won Park
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Publication number: 20020146570Abstract: A functional film includes a transition layer having a first constituent and a second constituent having gradual content gradients according to a thickness of the functional film. The first constituent is at least one dielectric material selected from the group consisting of SiOx (x>1), MgF2, CaF2, Al2O3, SnO2, In2O3 and ITO, and the second constituent is at least one material selected from the group consisting of iron (Fe), cobalt (Co), titanium (Ti), vanadium (V), aluminium (Al), silver (Ag), silicon (Si), germanium (Ge), yttrium (Y), zinc (Zn), zirconium (Zr), tungsten (W) and tantalum (Ta).Type: ApplicationFiled: November 28, 2001Publication date: October 10, 2002Applicant: SAMSUNG SDI CO., LTD.Inventors: Chaun-gi Choi, Young-rag Do, Joon-bae Lee, Chang-won Park
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Patent number: 6447983Abstract: A photolithography method includes applying to a substrate a coating of a film forming composition containing a bonding resin and a film forming material and drying to form a film; selectively coating the film with a photosensitive composition including a photosensitizer to form a film pattern; exposing the film with the film pattern; and developing the film. Therefore, a film in a pattern and having excellent characteristics can be manufactured easily and efficiently. The photolithography method can be applied to any product which requires the formation of a film in a pattern.Type: GrantFiled: May 24, 2000Date of Patent: September 10, 2002Assignee: Samsung SDI Co., Ltd.Inventors: Yong Han, Young-rag Do, Joon-bae Lee
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Patent number: 6387576Abstract: A black matrix, a preparation method thereof and a display device employing the black matrix. The black matrix which is a black coating layer surrounding pixels of the display device, includes SiO which is a dielectric material and at least one metal selected from the group consisting of iron (Fe), cobalt (Co), vanadium (V) and titanium (Ti). The black matrix has excellent thermal and chemical stability and is environmentally desirous by using a mixture of a nontoxic metal and a dielectric material. Also, the black matrix exhibits excellent adhesion to a substrate without an annealing process, is excellent in mechanical characteristic due to the absence of internal stress and is capable of being micro-patterned to have a particle size of 1 &mgr;m or less. When applied to the substrate of the display device, the black matrix exhibits excellent external light absorbing effect. Therefore, a display device having improved luminance and contrast characteristics can be attained.Type: GrantFiled: December 21, 2000Date of Patent: May 14, 2002Assignees: Samsung SDI Co., Ltd., Ivan Z. Indutnyy, Petro E. Shepelizvyi, Kateryna V. MichailoyskayaInventors: Ivan Indutnyy Z., Petro Shepeliavyi E., Kateryna Michailovskaya V., Chang-won Park, Joon-bae Lee, Yong Han
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Publication number: 20010030721Abstract: A black matrix, a preparation method thereof and a display device employing the black matrix. The black matrix which is a black coating layer surrounding pixels of the display device, includes SiO which is a dielectric material and at least one metal selected from the group consisting of iron (Fe), cobalt (Co), vanadium (V) and titanium (Ti). The black matrix has excellent thermal and chemical stability and is environmentally desirous by using a mixture of a nontoxic metal and a dielectric material. Also, the black matrix exhibits excellent adhesion to a substrate without an annealing process, is excellent in mechanical characteristic due to the absence of internal stress and is capable of being micro-patterned to have a particle size of 1 &mgr;m or less. When applied to the substrate of the display device, the black matrix exhibits excellent external light absorbing effect. Therefore, a display device having improved luminance and contrast characteristics can be attained.Type: ApplicationFiled: December 21, 2000Publication date: October 18, 2001Inventors: Ivan Indutnyy Z., Petro Shepeliavyi E., Kateryna Michailovskaya V., Chang-won Park, Joon-bae Lee, Yong Han
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Patent number: 5998918Abstract: A method of manufacturing a phosphor screen for a flickerless cathode ray tube comprising the steps of forming red and green phosphor layers on a panel for a cathode ray tube on which a black matrix is formed, forming a blue phosphor layer on said panel on which a black matrix is formed by coating the blue phosphor slurry and drying and forming a double phosphor layer by coating an ultraviolet phosphor slurry on said blue phosphor layer and drying, is provided.Type: GrantFiled: November 24, 1997Date of Patent: December 7, 1999Assignee: Samsung Display Devices Co., Ltd.Inventors: Young-rag Do, Chang-won Park, Joon-bae Lee, Won-ho Yoon