Patents by Inventor Byung-Hoon Chun
Byung-Hoon 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: 9496515Abstract: Provided is an organic light emitting diode that is highly efficient and has a long lifespan. The organic light emitting diode includes a carbazole-based compound for improving light emission efficiency. In certain embodiments an electron transport layer can include an anthraces-based compound. The organic light emitting diode may be included in a flat display diode including a thin film transistor (TFT).Type: GrantFiled: December 19, 2013Date of Patent: November 15, 2016Assignee: Samsung Display Co., Ltd.Inventors: Byung-Hoon Chun, Ja-Hyun Im, Sung-Jun Bae, Seong-Jong Kang, Kwan-Hee Lee
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Patent number: 9472767Abstract: An organic light-emitting device and a method of manufacturing the same. The organic light-emitting device includes a substrate, a first electrode formed on the substrate, a second electrode, an emission layer between the first electrode and the second electrode, a hole transport layer between the first electrode and the emission layer, and an electron transport layer between the second electrode and the emission layer. The hole transport layer includes a first hole transport unit comprising: a first hole transport layer comprising a hole transporting material, a third hole transport layer formed on the first hole transport layer and comprising a charge generating material; and a fifth hole transport layer formed on the third hole transport layer and comprising the hole transporting material.Type: GrantFiled: March 8, 2011Date of Patent: October 18, 2016Assignee: Samsung Display Co., Ltd.Inventors: Ja-Hyun Im, Ji-Hwan Yoon, Byung-Hoon Chun, Bum-Suk Kim
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Patent number: 9312309Abstract: An organic light emitting diode display includes a p-doped layer that can obtain high efficiency at low-voltage driving and low current and prevent leakage current by differentially forming the p-doped layer for each pixel.Type: GrantFiled: February 9, 2015Date of Patent: April 12, 2016Assignee: Samsung Display Co., Ltd.Inventors: Ja-Hyun Im, Jung-Min Moon, Tae-Kwang Sung, Ji-Hwan Yoon, Byung-Hoon Chun
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Patent number: 9196859Abstract: An organic light-emitting device and a flat panel device, the organic light-emitting device including a first electrode; a second electrode; and an organic layer between the first electrode and the second electrode, wherein the organic layer includes an emission layer, the emission layer including at least one N-doping layer.Type: GrantFiled: December 10, 2013Date of Patent: November 24, 2015Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Joong-Won Sim, Kwan-Hee Lee, Byung-Hoon Chun
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Patent number: 9172044Abstract: An organic light-emitting device with an electron transport layer disposed between the organic emission layer and the second electrode and comprising an anthracene-based compound and a carbazole-based compound represented by Formula 1 below: with improved efficiency and lifetime and a method for preparing the same are provided.Type: GrantFiled: March 12, 2013Date of Patent: October 27, 2015Assignee: Samsung Display Co., Ltd.Inventors: Ji-Hoon Seo, Kwan-Hee Lee, Byung-Hoon Chun, Ja-Hyun Im, Sung-Jun Bae
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Patent number: 9165981Abstract: An organic light emitting display includes a substrate; a first pixel electrode disposed on the substrate; a second pixel electrode disposed on the substrate; a hole auxiliary layer disposed on the first pixel electrode and the second pixel electrode; a first organic emission layer disposed on the hole auxiliary layer in correspondence with the first pixel electrode and the second pixel electrode; a blue organic emission layer disposed on the hole auxiliary layer in correspondence with the first pixel electrode and the second pixel electrode, the blue organic emission layer being further disposed on the first organic emission layer; a non-doping blue organic emission layer disposed on the blue organic emission layer; an electron auxiliary layer disposed on the non-doping blue organic emission layer; and a common electrode disposed on the electron auxiliary layer.Type: GrantFiled: January 20, 2014Date of Patent: October 20, 2015Assignee: Samsung Display Co., Ltd.Inventors: Ji-Hoon Seo, Kwan-Hee Lee, Ji-Hwan Yoon, Byung-Hoon Chun, Ja-Hyun Im
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Patent number: 9130188Abstract: An organic light-emitting diode includes: a substrate; a first electrode; a second electrode; an emission layer between the first electrode and the second electrode; and a hole blocking layer between the emission layer and the second electrode. The hole blocking layer includes a first layer including a first material and a second material, and a second layer formed on the first layer and including the first material. The first material includes a hole blocking material having a highest occupied molecular orbital (HOMO) energy level in the range of about 5.5 to about 6.9 eV, and the second material includes a green or red phosphorescent host material.Type: GrantFiled: November 4, 2011Date of Patent: September 8, 2015Assignee: Samsung Display Co., Ltd.Inventors: Byung-Hoon Chun, Sung-Jun Bae, Seong-Jong Kang
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Publication number: 20150155338Abstract: An organic light emitting diode display includes a p-doped layer that can obtain high efficiency at low-voltage driving and low current and prevent leakage current by differentially forming the p-doped layer for each pixel.Type: ApplicationFiled: February 9, 2015Publication date: June 4, 2015Inventors: Ja-Hyun Im, Jung-Min Moon, Tae-Kwang Sung, Ji-Hwan Yoon, Byung-Hoon Chun
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Publication number: 20150123086Abstract: An organic light emitting diode display includes a first substrate, an organic light emitting diode on the first substrate, a capping layer on the organic light emitting diode. The capping layer includes a first surface facing the organic light emitting diode and a second surface opposite the first surface. The capping layer has a gradient of refractive index that varies along a thickness direction from the first surface toward the second surface.Type: ApplicationFiled: May 12, 2014Publication date: May 7, 2015Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Jae-Young Lee, Seong-Jun Lee, Seong-Jong Kang, Myoung-Ki Kim, Byung-Hoon Chun
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Patent number: 8987714Abstract: An organic light emitting diode display includes a p-doped layer that can obtain high efficiency at low-voltage driving and low current and prevent leakage current by differentially forming the p-doped layer for each pixel.Type: GrantFiled: November 9, 2012Date of Patent: March 24, 2015Assignee: Samsung Display Co., Ltd.Inventors: Ja-Hyun Im, Ji-Hwan Yoon, Byung-Hoon Chun, Jung-Min Moon, Tae-Kwang Sung
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Publication number: 20140374707Abstract: An organic light emitting display includes a substrate; a first pixel electrode disposed on the substrate; a second pixel electrode disposed on the substrate; a hole auxiliary layer disposed on the first pixel electrode and the second pixel electrode; a first organic emission layer disposed on the hole auxiliary layer in correspondence with the first pixel electrode and the second pixel electrode; a blue organic emission layer disposed on the hole auxiliary layer in correspondence with the first pixel electrode and the second pixel electrode, the blue organic emission layer being further disposed on the first organic emission layer; a non-doping blue organic emission layer disposed on the blue organic emission layer; an electron auxiliary layer disposed on the non-doping blue organic emission layer; and a common electrode disposed on the electron auxiliary layer.Type: ApplicationFiled: January 20, 2014Publication date: December 25, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Ji-Hoon SEO, Kwan-Hee LEE, Ji-Hwan YOON, Byung-Hoon Chun, Ja-Hyun IM
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Publication number: 20140367653Abstract: An organic light-emitting device and a flat panel device, the organic light-emitting device including a first electrode; a second electrode; and an organic layer between the first electrode and the second electrode, wherein the organic layer includes an emission layer, the emission layer including at least one N-doping layer.Type: ApplicationFiled: December 10, 2013Publication date: December 18, 2014Inventors: Joong-Won SIM, Kwan-Hee Lee, Byung-Hoon Chun
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Publication number: 20140209874Abstract: Provided is an organic light emitting diode that is highly efficient and has a long lifespan. The organic light emitting diode includes a carbazole-based compound for improving light emission efficiency. In certain embodiments an electron transport layer can include an anthraces-based compound. The organic light emitting diode may be included in a flat display diode including a thin film transistor (TFT).Type: ApplicationFiled: December 19, 2013Publication date: July 31, 2014Inventors: Byung-Hoon Chun, Ja-Hyun Im, Sung-Jun Bae, Seong-Jong Kang, Kwan-Hee Lee
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Publication number: 20140103302Abstract: An organic light-emitting device with an electron transport layer disposed between the organic emission layer and the second electrode and comprising an anthracene-based compound and a carbazole-based compound represented by Formula 1 below: with improved efficiency and lifetime and a method for preparing the same are provided.Type: ApplicationFiled: March 12, 2013Publication date: April 17, 2014Inventors: Ji-Hoon SEO, Kwan-Hee LEE, Byung-Hoon CHUN, Ja-Hyun Im, Sung-Jun BAE
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Patent number: 8616930Abstract: A deposition apparatus includes a deposition source emitting a deposition material and an angle control member disposed on both sides of the deposition source and controlling an emission direction angle of the deposition material. The angle control member includes a housing having an internal space opened in an emission direction of the deposition material and a sliding member having a first end which is inserted into the internal space and a second end disposed on an emission path of the deposition material. The sliding member is movable forward and backward in the emission direction of the deposition material along the internal space. A method of manufacturing an organic light emitting diode (OLED) display which uses the deposition apparatus is also disclosed.Type: GrantFiled: November 14, 2012Date of Patent: December 31, 2013Assignee: Samsung Display Co., Ltd.Inventors: Ja-Hyun Im, Byung-Hoon Chun
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Publication number: 20130337720Abstract: A deposition apparatus includes a deposition source emitting a deposition material and an angle control member disposed on both sides of the deposition source and controlling an emission direction angle of the deposition material. The angle control member includes a housing having an internal space opened in an emission direction of the deposition material and a sliding member having a first end which is inserted into the internal space and a second end disposed on an emission path of the deposition material. The sliding member is movable forward and backward in the emission direction of the deposition material along the internal space. A method of manufacturing an organic light emitting diode (OLED) display which uses the deposition apparatus is also disclosed.Type: ApplicationFiled: November 14, 2012Publication date: December 19, 2013Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Ja-Hyun Im, Byung-Hoon Chun
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Patent number: 8610346Abstract: 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; and a carbonaceous material-containing layer between the first electrode and the organic layer, wherein the first electrode includes an aluminum (Al)-based reflective layer and a transparent conductive layer sequentially stacked in this order 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: GrantFiled: October 12, 2010Date of Patent: December 17, 2013Assignee: Samsung Display Co., Ltd.Inventors: Tae-Shick Kim, Dong-Heon Kim, Kwan-Hee Lee, Byung-Hoon Chun
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Publication number: 20130001523Abstract: An organic light-emitting diode includes: a substrate; a first electrode; a second electrode; an emission layer between the first electrode and the second electrode; and a hole blocking layer between the emission layer and the second electrode. The hole blocking layer includes a first layer including a first material and a second material, and a second layer formed on the first layer and including the first material. The first material includes a hole blocking material having a highest occupied molecular orbital (HOMO) energy level in the range of about 5.5 to about 6.9 eV, and the second material includes a green or red phosphorescent host material.Type: ApplicationFiled: November 4, 2011Publication date: January 3, 2013Inventors: Byung-Hoon Chun, Sung-Jun Bae, Seong-Jong Kang
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Patent number: 8299478Abstract: An OLED display device includes a substrate, a TFT on the substrate, the TFT including a semiconductor layer, a gate electrode, and source and drain electrodes, a first electrode electrically connected to one of the source and drain electrodes, a pixel defining layer on the substrate, the pixel defining layer exposing the first electrode and having a reversed trapezoidal shape, an emitting layer on the exposed first electrode, and a second electrode on the emitting layer.Type: GrantFiled: February 4, 2010Date of Patent: October 30, 2012Assignee: Samsung Display Co., Ltd.Inventor: Byung-Hoon Chun
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Publication number: 20110215308Abstract: An organic light-emitting device and a method of manufacturing the same. The organic light-emitting device includes a substrate, a first electrode formed on the substrate, a second electrode, an emission layer between the first electrode and the second electrode, a hole transport layer between the first electrode and the emission layer, and an electron transport layer between the second electrode and the emission layer. The hole transport layer includes a first hole transport unit comprising: a first hole transport layer comprising a hole transporting material, a third hole transport layer formed on the first hole transport layer and comprising a charge generating material; and a fifth hole transport layer formed on the third hole transport layer and comprising the hole transporting material.Type: ApplicationFiled: March 8, 2011Publication date: September 8, 2011Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.Inventors: Ja-Hyun IM, Ji-Hwan YOON, Byung-Hoon CHUN, Bum-Suk KIM