Patents by Inventor Sang Eok Jang
Sang Eok Jang 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: 20210257419Abstract: An organic light-emitting display device includes: a display panel having a first display area and a second display area, the first and second display areas having different light transmittances from each other in a unit area, wherein the display panel includes a plurality of organic light-emitting diodes disposed in the first display area and the second display area, wherein a first organic light-emitting diode disposed in the first display area and a second organic light-emitting diode disposed in the second display area each include at least one light emitter, and the number of the light emitter included in the second organic light-emitting diode is greater than the number of the light emitter included in the first organic light-emitting diode.Type: ApplicationFiled: January 29, 2021Publication date: August 19, 2021Inventors: Sang Eok Jang, Seung Chan Lee, Sun Ho Kim, Dong Hwan Shim, Sun Hee Lee, Gun Hee Kim, Tae Hoon Yang
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Patent number: 9337448Abstract: An organic light emitting display includes an array substrate, a plurality of light emitting devices disposed over the array substrate, and a plurality of color filters having different colors. The plurality of light emitting devices include a first light emitting device configured to emit light having a first color and a second light emitting device configured to emit light having a second color different from the first color, and the plurality of color filters include first and second color filters disposed over the first light emitting device and the second light emitting device, respectively.Type: GrantFiled: August 6, 2013Date of Patent: May 10, 2016Assignee: Samsung Display Co., Ltd.Inventors: Sung-Soo Lee, Se Il Kim, Eun Kyoung Nam, Sang Eok Jang
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Patent number: 9165983Abstract: An organic light emitting diode display includes a substrate including a plurality of subpixel areas, a plurality of pixel electrodes positioned corresponding to each of the plurality of subpixel areas on the substrate, a white emission layer formed on the plurality of pixel electrodes; a common electrode covering the white emission layer, a plurality of capping layers positioned corresponding to each of the plurality of subpixel areas on the common electrode, and a color filter layer including a plurality of filter layers corresponding to each of the plurality of subpixel areas. At least two capping layers among the plurality of capping layers have any one of a refractive index and a thickness different from each other.Type: GrantFiled: January 31, 2014Date of Patent: October 20, 2015Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sang-Eok Jang, Sung-Soo Lee, Eun-Kyoung Nam, Se-Il Kim
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Patent number: 9142784Abstract: The present invention relates to a highly efficient carbazole-based compound and to an organic electroluminescence device including the same. According to the present invention, provided are a compound for an organic electroluminescence device and an organic electroluminescence device including the compound, in which a carbazole-based phosphine oxide compound, which is a compound intended for an organic electroluminescence device, is employed to overcome the problems of conventional compounds for organic electroluminescence devices, i.e. those of instable thermal stability and low efficiency, and particularly, the compound of the present invention exhibits superior efficiency in pure-blue phosphorescent devices.Type: GrantFiled: June 23, 2011Date of Patent: September 22, 2015Assignee: SK CHEMICALS CO., LTD.Inventors: Jun Yeob Lee, Soon Ok Jeon, Hyo Suk Son, Kyoung Soo Yook, Sang Eok Jang
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Publication number: 20140312325Abstract: An organic light emitting diode display includes a substrate including a plurality of subpixel areas, a plurality of pixel electrodes positioned corresponding to each of the plurality of subpixel areas on the substrate, a white emission layer formed on the plurality of pixel electrodes; a common electrode covering the white emission layer, a plurality of capping layers positioned corresponding to each of the plurality of subpixel areas on the common electrode, and a color filter layer including a plurality of filter layers corresponding to each of the plurality of subpixel areas. At least two capping layers among the plurality of capping layers have any one of a refractive index and a thickness different from each other.Type: ApplicationFiled: January 31, 2014Publication date: October 23, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Sang-Eok JANG, Sung-Soo LEE, Eun-Kyoung NAM, Se-Il KIM
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Patent number: 8841659Abstract: An organic light-emitting display apparatus that has reduced resonance effect includes a thin film transistor (TFT) layer including a plurality of TFTs, first protective layer covering the TFT, a color filter disposed in at least a partial area of the region in the first protective layer, a first overcoat covering the color filter, a second protective layer covering the first overcoat, a second overcoat disposed on the second protective layer, and a pixel electrode disposed on top of the second overcoat and electrically coupled to the TFTs in the TFT layer.Type: GrantFiled: July 12, 2013Date of Patent: September 23, 2014Assignee: Samsung Display Co., Ltd.Inventors: Se-II Kim, Sung-Soo Lee, Eun-Kyoung Nam, Sang-Eok Jang
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Publication number: 20140166997Abstract: An organic light-emitting display apparatus that has reduced resonance effect includes a thin film transistor (TFT) layer including a plurality of TFTs, first protective layer covering the TFT, a color filter disposed in at least a partial area of the region in the first protective layer, a first overcoat covering the color filter, a second protective layer covering the first overcoat, a second overcoat disposed on the second protective layer, and a pixel electrode disposed on top of the second overcoat and electrically coupled to the TFTs in the TFT layer.Type: ApplicationFiled: July 12, 2013Publication date: June 19, 2014Inventors: Se-Il Kim, Sung-Soo Lee, Eun-Kyoung Nam, Sang-Eok Jang
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Publication number: 20140077185Abstract: An organic light emitting display includes an array substrate, a plurality of light emitting devices disposed over the array substrate, and a plurality of color filters having different colors. The plurality of light emitting devices include a first light emitting device configured to emit light having a first color and a second light emitting device configured to emit light having a second color different from the first color, and the plurality of color filters include first and second color filters disposed over the first light emitting device and the second light emitting device, respectively.Type: ApplicationFiled: August 6, 2013Publication date: March 20, 2014Applicant: Samsung display Co., LtdInventors: Sung-Soo LEE, Se Il KIM, Eun Kyoung NAM, Sang Eok JANG
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Publication number: 20130119367Abstract: The present invention relates to a highly efficient carbazole-based compound and to an organic electroluminescence device including the same. According to the present invention, provided are a compound for an organic electroluminescence device and an organic electroluminescence device including the compound, in which a carbazole-based phosphine oxide compound, which is a compound intended for an organic electroluminescence device, is employed to overcome the problems of conventional compounds for organic electroluminescence devices, i.e. those of instable thermal stability and low efficiency, and particularly, the compound of the present invention exhibits superior efficiency in pure-blue phosphorescent devices.Type: ApplicationFiled: June 23, 2011Publication date: May 16, 2013Applicant: INDUSTRY ACADEMIC COOPERATION FOUNDATION, DANKOOK UNIVERSITYInventors: Jun Yeob Lee, Soon Ok Jeon, Hyo Suk Son, Kyoung Soo Yook, Sang Eok Jang