Patents by Inventor Min-Seung Chun
Min-Seung Chun 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: 7999459Abstract: The invention is directed to organic light emitting diodes (OLEDs) and methods of manufacturing the same. According to embodiments of the invention, an improved electron transport layer (ETL) reduces the driving voltage and current consumption of the OLED, and increase luminous efficiency and lifespan. The OLED includes a first electrode, an organic layer on the first electrode and including an emission layer (EML) and an ETL, and a second electrode on the organic layer.Type: GrantFiled: January 26, 2009Date of Patent: August 16, 2011Assignee: Samsung Mobile Display Co., Ltd.Inventors: Min-Seung Chun, Dong-Heon Kim, Jae-Hyun Kwak, Jung-Ha Son, Mi-Kyung Kim, Kwan-Hee Lee
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Publication number: 20110127511Abstract: A top-emitting organic light-emitting device (OLED) including a reflective first electrode layer; a semitransparent second electrode layer facing the first electrode layer; and an organic layer between the first electrode layer and the second electrode layer, wherein the organic layer comprises a first layer, a second layer, and an emission layer between the first layer and the second layer, wherein the sum of the thicknesses of the emission layer and the second layer is about 0.15 to about 0.30 times the thickness of the entire organic layer. The top-emitting OLED may have high efficiency, and thus driving voltage may be reduced.Type: ApplicationFiled: December 2, 2010Publication date: June 2, 2011Inventors: Mie-Hwa Park, Min-Seung Chun, Kyung-Hoon Choi, Young-Suck Choi, Young-Ho Park, Hee-Seong Jeong
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Patent number: 7952271Abstract: An organic light-emitting device includes a substrate; a first electrode; a second electrode facing the first electrode; an organic layer disposed on the first electrode; and an emitting layer interposed between the organic layer and the second electrode. The concentration of inorganic impurities within the organic layer is 1000 ppb or less. The organic light-emitting device has high light-emitting efficiency, low driving voltage, high brightness, and long life span.Type: GrantFiled: July 18, 2008Date of Patent: May 31, 2011Assignee: Samsung Mobile Display Co., Ltd.Inventors: Min-Seung Chun, Dong-Hun Kim, Mi-Kyung Kim, Jung-Ha Son, Jae-Hyun Kwak
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Publication number: 20110114930Abstract: An organic light-emitting device including a mixed organic layer that includes a triphenyl amine derivative and a pyrazine derivative and an emission layer that includes an anthracene derivative, an amine-containing styryl derivative, or any mixture thereof.Type: ApplicationFiled: November 15, 2010Publication date: May 19, 2011Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.,Inventors: Tae-Shick Kim, Dong-Heon Kim, Kwan-Hee Lee, Choon-Woo Lim, Jae-Hyun Kwak, Jung-Ha Son, Min-Seung Chun, Young-Ho Park, Kyung-Hoon Choi, Mi-Kyung Kim
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Publication number: 20110084258Abstract: An organic light-emitting device including a substrate; a first electrode on the substrate; a second electrode; an organic layer between the first electrode and the second electrode, the organic layer including an emission layer; and a first layer including a cyano group-containing compound, the first layer being between the first electrode and the emission layer, wherein the first electrode includes an Al-based reflective layer and a transparent conductive layer sequentially stacked on the substrate, the Al-based reflective layer including a first element and nickel (Ni), and the first element includes at least one of lanthanum (La), cerium (Ce), praseodymium (Pr), promethium (Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), and lutetium (Lu).Type: ApplicationFiled: October 12, 2010Publication date: April 14, 2011Inventors: Tae-Shick KIM, Dong-Heon Kim, Kwan-Hee Lee, Min-Seung Chun, Mi-Kyung Kim
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Patent number: 7811680Abstract: An organic electroluminescent device is disclosed that includes an emission layer between a first electrode and a second electrode, and a buffer layer between the emission layer and the first electrode. The buffer layer includes a carbon-based compound and may be about 0.1 nm to about 100 nm thick. The organic electroluminescent device has greater driving voltage, better efficiency, and a longer life expectancy.Type: GrantFiled: October 11, 2005Date of Patent: October 12, 2010Assignee: Samsung Mobile Display Co., Ltd.Inventors: Tae-Shick Kim, Hye-In Jeong, Young-Mo Koo, Ok-Keun Song, Jun-Yeob Lee, Min-Seung Chun, Mi-Kyung Kim
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Patent number: 7776457Abstract: An organic electroluminescent (EL) device which has a light emitting layer composed of at least one phosphorescent dopant disposed between a first electrode and a second electrode; and a blue light emitting layer contacting the light emitting layer, wherein the light emitting layer has a hole transport material and an electron transport material as a host.Type: GrantFiled: November 8, 2005Date of Patent: August 17, 2010Assignee: Samsung Mobile Display Co., Ltd.Inventors: Jun-Yeob Lee, Min-Seung Chun, Yong-Joong Choi
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Publication number: 20100181561Abstract: An organic light emitting device with improved light emitting efficiency, the organic light emitting device includes a substrate, a first electrode arranged on the substrate, a second electrode arranged to face the first electrode, an organic light-emitting layer arranged between the first electrode and the second electrode, an electron transport layer arranged between the organic light-emitting layer and the second electrode, wherein the electron transport layer includes a multi-layer structure that includes at least one first layer and at least two second layers, wherein ones of said at least one first layer and ones of said at least two second layers are alternately stacked, wherein ones of the at least two second layers are arranged at both opposite ends of the electron transport layer, each of the at least two second layers having a lower electron mobility than that of each of the at least one first layer.Type: ApplicationFiled: January 14, 2010Publication date: July 22, 2010Applicant: Samsung Mobile Display Co., LTD.Inventors: Mi-Kyung KIM, Min-Seung CHUN, Dong-Heon KIM, Kwan-Hee LEE
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Publication number: 20100176389Abstract: Provided are an organic light emitting diode and a method of manufacturing the same. The organic light emitting diode adjusts an optical resonance thickness and prevents spectrum distortions without use of an auxiliary layer. The organic light emitting diode includes a first electrode that is optically reflective; a second electrode that is optically transmissible and faces the first electrode; an organic emission layer interposed between the first electrode and the second electrode, the organic emission layer including: a first emission layer including a mixed layer that contains a host material and a dopant material, and a second emission layer comprising only the host material; and a carrier injection transport layer interposed between the organic emission layer and the first electrode or between the organic emission layer and the second electrode.Type: ApplicationFiled: January 13, 2010Publication date: July 15, 2010Applicant: Samsung Mobile Display Co., Ltd.Inventors: Min-Seung CHUN, Mi-Kyung Kim, Dong-Heon Kim, Jung-Ha Son, Jae-Hyun Kwak, Kyung-Hoon Choi, Mie-Hwan Park, Young-Ho Park, Young-Suck Choi, Tae-Shick Kim, Choon-Woo Im, Kwan-Hee Lee
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Publication number: 20100059775Abstract: Provided are an organic light emitting diode and a method of fabricating the same, which can reduce the efficiency of electron injection and transport at low brightness to cause low luminous efficiency, thus preventing the organic light emitting diode from emitting light when displaying black. The organic light emitting diode includes a first electrode, an emission layer disposed on the first electrode, a second electrode disposed on the emission layer, and a metal layer formed of a metal element to a thickness of 5 to less than 50 ?. The metal layer is disposed between the first electrode and the emission layer or between the emission layer and the second electrode.Type: ApplicationFiled: August 26, 2009Publication date: March 11, 2010Applicant: Samsung Mobile Display Co., Ltd.Inventors: Mi-Kyung Kim, Min-Seung Chun, Dong-Heon Kim, Jung-Ha Son, Jae-Hyun Kwak
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Patent number: 7651790Abstract: An organic light-emitting device is provided that includes an emission layer containing a phosphorescent dopant and a bipolar phosphorescent host interposed between a first electrode and a second electrode. The bipolar phosphorescent host is a compound represented by formula 1: A—C—B??(1) where A is a hole transport unit, B is an electron transport unit, and C is a bond or a linking group. The bipolar compound can transport both holes and electrons. The organic light-emitting device has high efficiency and a long lifetime.Type: GrantFiled: November 4, 2005Date of Patent: January 26, 2010Assignee: Samsung Mobile Display Co., Ltd.Inventors: Jun-Yeob Lee, Jang-Hyuk Kwon, Min-Seung Chun, Yong-Joong Choi
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Publication number: 20100012926Abstract: An organic EL device is constructed with a first electrode, a light-emitting layer, a second electrode, and an organic layer which includes a biphenylenediamine compound and is interposed between the first electrode and the light-emitting layer. The organic layer formed between the first electrode and the light-emitting layer has both hole transport and hole injection properties. With this structure, the organic EL device has improved lifetime characteristics in spite of absence of a hole injection layer. A buffer layer including an organic compound with p-type semiconductive property may be further formed between the first electrode and the organic layer including the 4,4?-biphenylenediamine compound to facilitate hole injection from the first electrode and transport an injected hole to the light-emitting layer. Therefore, the organic EL device can have a lower driving voltage, thereby improving a device lifetime.Type: ApplicationFiled: May 10, 2005Publication date: January 21, 2010Inventors: Jun-Yeob Lee, Jang-Hyuk Kwon, Min-Seung Chun, Yong-Joong Choi
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Patent number: 7646011Abstract: An organic light emitting display device is disclosed. The device includes a substrate; a first electrode formed on the substrate; an organic layer including at least an emission layer and formed on the first electrode; and a second electrode formed on the organic layer. The emission layer includes a host and a dopant material. The dopant is one of materials having the structure of Formula 1, where R may be one selected from the group consisting of ethylene, an ethylene derivative, stilbene, a stilbene derivative. Also, R1 to R6 may be different from or equal to each other, and each is selected from the group consisting of a hydrogen atom, a halogen atom, a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C1 to C20 alkoxy group, a substituted or unsubstituted C5 to C20 aryl group, a C3 to C30 heterocyclic group, and an aliphatic C3 to C30 hydrocarbon group.Type: GrantFiled: July 14, 2006Date of Patent: January 12, 2010Assignee: Samsung Mobile Display Co., Ltd.Inventors: Jun-Yeob Lee, Min-Seung Chun, Yong-Joong Choi
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Patent number: 7601439Abstract: An organic electroluminescent device includes an emission layer interposed between a first electrode and a second electrode. The emission layer may be composed of a host material and a phosphorescent dopant material. The host material may be composed of a mixture of a hole transport material and an electron transport material. The hole transport material may be a carbazole compound and the electron transport material may include at least a compound selected from spirofluorenes and organic metal complexes. The use of the mixture facilitates the re-combination of holes and electrons in neighboring organic layers, thus decreasing the driving voltage and increasing the luminous efficiency and lifetime of the organic electroluminescent device.Type: GrantFiled: November 23, 2005Date of Patent: October 13, 2009Assignee: Samsung Mobile Display Co., Ltd.Inventors: Min-Seung Chun, Jun-Yeob Lee, Yong-Joong Choi
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Patent number: 7595118Abstract: An organic light emitting device including a first electrode, a second electrode, and an emission layer arranged between the first electrode and the second electrode, the emission layer comprising at least two electron transport materials adapted to serve as a host and a phosphorescent dopant. The use of at least two electron transport materials as a host facilitates the re-combination of holes and electrons in neighboring organic layers, thus improving the luminous efficiency and the lifetime of the organic light emitting device.Type: GrantFiled: November 17, 2005Date of Patent: September 29, 2009Assignee: Samsung Mobile Display Co., Ltd.Inventors: Min-Seung Chun, Jun-Yeob Lee, Yong-Joong Choi
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Publication number: 20090233125Abstract: An organic light-emitting device includes a first electrode; a second electrode; and an organic layer interposed between the first electrode and the second electrode, the organic layer including one or more anthracene derivative compounds represented by Formula 1 below and optionally an ionic metal complex: wherein R1 and R2 are each independently a hydrogen atom, a substituted or unsubstituted C1-C30 alkyl group, a substituted or unsubstituted C1-C30 alkoxy group, a substituted or unsubstituted C6-C30 aryl group, a substituted or unsubstituted C6-C30 aryloxy group, a substituted or unsubstituted C4-C30 heteroaryl group, a substituted or unsubstituted C6-C30 condensed polycyclic group, a hydroxyl group, halogen, a cyano group, or a substituted or unsubstituted amino group.Type: ApplicationFiled: March 14, 2008Publication date: September 17, 2009Applicant: Samsung SDI Co., Ltd.Inventors: Kyung-Hoon CHOI, Kwan-Hee Lee, Min-Seung Chun, Choon-Won Lim, Mia-Hwa Park, Young-suck Choi, Young-Ho Park
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Publication number: 20090232976Abstract: A method of forming a plurality of multi-layer organic films in a single process includes preparing a first evaporating source that evaporates a first evaporating source material onto a first deposition region and a second evaporating source that evaporates a second evaporating source material onto a second deposition region, wherein the first evaporating source material and the second evaporating source material are different from each other, adjusting the first evaporating source and the second evaporating source in order to obtain a first overlapping region in which the first deposition region and the second deposition region overlap each other, driving the first evaporating source and the second evaporating source to deposit the first evaporating source material and the second evaporating source material onto a portion of an object to be processed, and moving the first evaporating source and the second evaporating source from a first end of the object to a second end of the object to form a multilayer filType: ApplicationFiled: September 9, 2008Publication date: September 17, 2009Applicant: Samsung SDI Co., Ltd.Inventors: Ji-Hwan YOON, Kwan-Hee Lee, Jae-Hyun Kwak, Dong-Hun Kim, Min-Seung Chun, Jung-Ha Son
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Publication number: 20090224655Abstract: An organic light-emitting device includes a substrate; a first electrode; a second electrode facing the first electrode; an organic layer disposed on the first electrode; and an emitting layer interposed between the organic layer and the second electrode. The concentration of inorganic impurities within the organic layer is 1000 ppb or less. The organic light-emitting device has high light-emitting efficiency, low driving voltage, high brightness, and long life span.Type: ApplicationFiled: July 18, 2008Publication date: September 10, 2009Applicant: Samsung SDI Co., Ltd.Inventors: Min-Seung CHUN, Dong-Hun KIM, Mi-Kyung KIM, Jung-Ha SON, Jae-Hyun KWAK
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Publication number: 20090206740Abstract: An organic light emitting diode includes a first electrode, an organic layer disposed on the first electrode and including an emission layer and an electron transport layer, and a second electrode disposed on the organic layer. The electron transport layer includes an organic metal complex including beryllium and one of compounds of formula 1: wherein R1 to R22 are as defined in the specification.Type: ApplicationFiled: January 26, 2009Publication date: August 20, 2009Applicant: Samsung Mobile Display Co., Ltd.Inventors: Min-Seung Chun, Mi-Kyung Kim, Dong-Heon Kim, Jae-Hyun Kwak, Jung-Ha Son, Kwan-Hee Lee
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Publication number: 20090189521Abstract: The invention is directed to organic light emitting diodes (OLEDs) and methods of manufacturing the same. According to embodiments of the invention, an improved electron transport layer (ETL) reduces the driving voltage and current consumption of the OLED, and increase luminous efficiency and lifespan. The OLED includes a first electrode, an organic layer on the first electrode and including an emission layer (EML) and an ETL, and a second electrode on the organic layer.Type: ApplicationFiled: January 26, 2009Publication date: July 30, 2009Inventors: Min-Seung Chun, Dong-Heon Kim, Jae-Hyun Kwak, Jung-Ha Son, Mi-Kyung Kim, Kwan-Hee Lee