Patents by Inventor Jae-hyun Kwak
Jae-hyun Kwak 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).
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
Publication number: 20080284324Abstract: Organic light emitting devices (OLEDs) are provided. An exemplary OLED includes a substrate, a first electrode, a second electrode, and an organic layer between the first and second electrodes having a hole injection layer and an emissive layer. The emissive layer includes red, green and blue emissive layers. The organic layer further includes an auxiliary layer selected from a first auxiliary layer between the hole injection layer and the red emissive layer for adjusting the resonance cycle of red light, a second auxiliary layer between the hole injection layer and the green emissive layer for adjusting the resonance cycle of green light, and combinations thereof. The material of the auxiliary layer is different from the material of the hole injection layer. The organic light emitting device has low turn-on voltage, high current density, high luminance, high current efficiency, high power, long life-time, and excellent color purity.Type: ApplicationFiled: May 15, 2008Publication date: November 20, 2008Inventors: Min-Seung Chun, Kwan-Hee Lee, Mi-Kyung Kim, Dong-Hun Kim, Jae-Hyun Kwak, Jung-Ha Son
-
Patent number: 7421775Abstract: A method of easily and inexpensively manufacturing an antenna for an RFID tag by forming the antenna using magnets of a pattern corresponding to a shape of the antenna is provided. One example method includes a) placing a substrate above a level of a fluid containing a conductive substance, b) placing a magnet (e.g., an electromagnet including an electrode) formed in a shape of an antenna pattern above a surface of the substrate, and adhering the conductive substance to a bottom of the substrate in the shape of the antenna pattern by a magnetic force, and c) fixing the conductive substance adhered to the bottom of the substrate.Type: GrantFiled: July 1, 2005Date of Patent: September 9, 2008Assignee: Samsung Techwin Co., Ltd.Inventors: Jae-hyun Kwak, Se-jin Lim, Soo-ho Kim
-
Patent number: 7382265Abstract: An ultra high frequency (UHF) radio frequency identification (RFID) tag and a method of manufacturing the tag are provided. The tag includes a substrate, a chip attached to the substrate and having a plurality of bumps for connecting a circuit formed therein with an external, and at least one UHF antenna extended in a longitudinal direction and responding to ultra high frequency transferred from the external, at least one end of the UHF antenna connected to the bump, and one portion of the antenna fixed to the substrate.Type: GrantFiled: August 2, 2005Date of Patent: June 3, 2008Assignee: Samsung Techwin Co., Ltd.Inventors: Jae-hyun Kwak, Se-jin Lim, Soo-ho Kim
-
Publication number: 20070141396Abstract: An organic luminescence display device having an emission layer between a first electrode and a second electrode is disclosed. One embodiment of the device includes: a first hole injection layer and a second hole injection layer between the first electrode and the emission layer; and a charge generation layer doped with a p-type dopant between the first hole injection layer and the second hole injection layer. The device has a reduced driving voltage and an enhanced efficiency and lifetime.Type: ApplicationFiled: November 13, 2006Publication date: June 21, 2007Inventors: Min-Seung Chun, Mi-Kyung Kim, Dong-Hun Kim, Jung-Ha Son, Jae-Hyun Kwak
-
Publication number: 20070141395Abstract: An organic EL display device and a method of manufacturing the same are disclosed. One embodiment of the organic EL display device includes: a light-emitting layer between a first electrode and a second electrode; a hole injection layer and a hole transport layer between the first electrode and the light-emitting layer; and a charge generation layer between the hole injection layer and the hole transport layer. The charge generation layer between the hole injection layer and the hole transport layer results in a low driving voltage, high efficiency and a long lifespan of the organic EL display device.Type: ApplicationFiled: November 13, 2006Publication date: June 21, 2007Inventors: Min-Seung Chun, Mi-Kyung Kim, Dong-Hun Kim, Jung-Ha Son, Jae-Hyun Kwak
-
Publication number: 20060143898Abstract: A method of easily and inexpensively manufacturing an antenna for an RFID tag by forming the antenna using magnets of a pattern corresponding to a shape of the antenna is provided. The method includes a) placing a substrate above a level of a fluid containing a conductive substance, b) placing an electrode formed in a shape of an antenna pattern above a surface of the substrate, and applying a current to the electrode, to adhere the conductive substance to a bottom of the substrate in the shape of the antenna pattern by an electromagnetic force, and c) fixing the conductive substance adhered to the bottom of the substrate.Type: ApplicationFiled: July 1, 2005Publication date: July 6, 2006Applicant: Samsung Techwin Co., Ltd.Inventors: Jae-hyun Kwak, Se-jin Lim, Soo-ho Kim
-
Publication number: 20060103536Abstract: An ultra high frequency (UHF) radio frequency identification (RFID) tag and a method of manufacturing the tag are provided. The tag includes a substrate, a chip attached to the substrate and having a plurality of bumps for connecting a circuit formed therein with an external, and at least one UHF antenna extended in a longitudinal direction and responding to ultra high frequency transferred from the external, at least one end of the UHF antenna connected to the bump, and one portion of the antenna fixed to the substrate.Type: ApplicationFiled: August 2, 2005Publication date: May 18, 2006Applicant: Samsung Techwin Co., Ltd.Inventors: Jae-hyun Kwak, Se-jin Lim, Soo-ho Kim