Patents by Inventor Jin Sub Lee
Jin Sub 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: 20170250316Abstract: A light-emitting diode (LED) device configured to provide a multi-color display includes a plurality of light-emitting cells at least partially defined by a partition layer. The LED device may be configured to reduce optical interferences between the light-emitting cells. The LED device includes a plurality of light-emitting structures spaced apart from one another; a plurality of electrode layers on respective first surfaces of the light-emitting structures, a separation layer configured to electrically insulate the light-emitting structures from each other; phosphor layers on respective second surfaces of the light-emitting structures and associated with different colors, and a partition layer between the phosphor layers to separate the phosphor layers from one another. Each light-emitting cell may include a separate light-emitting structure, a separate set of one or more electrodes, and a separate phosphor layer.Type: ApplicationFiled: October 13, 2016Publication date: August 31, 2017Applicant: Samsung Electronics Co., Ltd.Inventors: Ji-hye YEON, Wan-tae Lim, Young-soo Park, Jung-sub Kim, Jin-sub Lee, Ha-nul Yoo, Hye-seok Noh
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Publication number: 20170244010Abstract: A light-emitting device package includes a plurality of luminescent structures arranged spaced apart from each other in a horizontal direction, an intermediate layer on the plurality of luminescent structures, and wavelength conversion layers on the intermediate layer, the wavelength conversion layers vertically overlapping separate, respective luminescent structures of the plurality of luminescent structures. The intermediate layer may include a plurality of layers, the plurality of layers associated with different refractive indexes, respectively. The intermediate layer may include a plurality of sets of holes, each set of holes may include a separate plurality of holes, and each wavelength conversion layer may vertically overlap a separate set of holes on the intermediate layer.Type: ApplicationFiled: November 29, 2016Publication date: August 24, 2017Applicant: Samsung Electronics Co., Ltd.Inventors: Jung-sub KIM, Yong-il KIM, Dong-gun LEE, Kyung-wook HWANG, Jin-sub LEE, Min-gyeong GWON
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Publication number: 20170236866Abstract: A pixel of a light emitting diode module, display panel or other device, may comprise different colored sub-pixels, where one of the sub-pixels comprises a wavelength converting material, such as phosphor, to convert light emitted from an associated light emitting diode of that sub-pixel into a color other than the main color of light emitted from that sub-pixel. The wavelength converting material may have an amount selected to tune the color coordinates of the pixel. The amount of wavelength converting material may be determined in response to measuring the intensity of the spectrum of light emitted by the light emitting diode of the sub-pixel, or similarly manufactured sub-pixels, on which the wavelength converting material is to be formed. Methods of manufacturing the same are also disclosed.Type: ApplicationFiled: November 16, 2016Publication date: August 17, 2017Inventors: Jin Sub LEE, Han Kyu SEONG, Yong Il KIM, Jung Sub KIM, Seul Gee LEE
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Publication number: 20170125631Abstract: A semiconductor light emitting device includes a first conductivity-type semiconductor layer; an active layer disposed on the first conductivity-type semiconductor layer, and including: a plurality of quantum barrier layers; and a plurality of quantum well layers containing indium (In), the plurality of quantum barrier layers and the plurality of quantum well layers being alternately stacked on each other, the plurality of quantum well layers comprising a first quantum well layer and a second quantum well layer; and a second conductivity-type semiconductor layer disposed on the active layer, wherein the first quantum well layer is disposed closer to the first conductivity-type semiconductor layer than the second quantum well layer, wherein the second quantum well layer is disposed closer to the second conductivity-type semiconductor layer than the first quantum well layer, wherein a thickness of the second quantum well layer is greater than a thickness of the first quantum well layer, and wherein each of theType: ApplicationFiled: August 12, 2016Publication date: May 4, 2017Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jin Sub LEE, Jung Sub KIM, Han Kyu SEONG, Soon Jo KWON, Ji Hye YEON, Dong Gun LEE
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Nanostructure semiconductor light emitting device having rod and capping layers of differing heights
Patent number: 9595637Abstract: There is provided a semiconductor light-emitting device including a base layer formed of a first conductivity-type semiconductor material, and a plurality of light-emitting nanostructures disposed on the base layer to be spaced apart from each other, and including first conductivity-type semiconductor cores, active layers, and second conductivity-type semiconductor layers. The first conductivity-type semiconductor cores include rod layers extending upwardly from the base layer, and capping layers disposed on the rod layers. Heights of the rod layers are different in at least a portion of the plurality of light-emitting nanostructures, and heights of the capping layers are different in at least a portion of the plurality of light-emitting nanostructures.Type: GrantFiled: October 22, 2015Date of Patent: March 14, 2017Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyun Seong Kum, Dae Myung Chun, Ji Hye Yeon, Han Kyu Seong, Jin Sub Lee, Young Jin Choi, Jae Hyeok Heo -
Publication number: 20170054055Abstract: A semiconductor ultraviolet light emitting device includes: a substrate; a buffer layer disposed on the substrate and comprising a plurality of nanorods between which a plurality of voids are formed; a first conductive nitride layer disposed on the buffer layer and having a first conductive AlGaN layer; an active layer disposed on the first conductive nitride layer and having a quantum well including AlxInyGa1-x-yN (0?x+y?1, 0?y<0.15); and a second conductive nitride layer disposed on the active layer and having a second conductive AlGaN layer, in which the plurality of nanorods satisfy 3.5?n(?)×D/??5.0, where ? represents a wavelength of light generated by the active layer, n(?) represents a refractive index of the plurality of nanorods at a wavelength of ?, and D represents diameters of the plurality of nanorods.Type: ApplicationFiled: May 5, 2016Publication date: February 23, 2017Applicants: SAMSUNG ELECTRONICS CO., LTD., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATIONInventors: Jung Sub KIM, Dong Hyun LEE, Jin Sub LEE, Kyung Wook HWANG, In Su SHIN, Eui Joon YOON, Gun Do LEE, Jeong Hwan JANG
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Publication number: 20170040490Abstract: A method of manufacturing a semiconductor light emitting device is provided. The method includes forming a first region of a lower semiconductor layer on a substrate, etching an upper surface of the first region using at least one gas used in forming the first region, in-situ in a chamber in which a process of forming the first region has been performed, forming a second region of the lower semiconductor layer on the first region, forming an active layer on the lower semiconductor layer, and forming an upper semiconductor layer on the active layer.Type: ApplicationFiled: June 3, 2016Publication date: February 9, 2017Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jin Sub LEE, Jung Sub KIM
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Patent number: 9461199Abstract: There is provided a nanostructure semiconductor light-emitting device including a base layer formed of a first conductivity-type semiconductor, an insulating layer disposed on the base layer and having a plurality of openings, and a plurality of light-emitting nanostructures disposed the plurality of openings, respectively. Each of light-emitting nanostructures includes a nanocore formed of a first conductivity-type semiconductor, and an active layer and a second conductivity-type semiconductor layer sequentially disposed on a surface of the nanocore. The plurality of light-emitting nanostructures are formed through the same growth process and divided into n groups (where n is an integer of two or more), each of which having at least two light-emitting nanostructures. At least one of a diameter, a height, and a pitch of the nanocores is different by group so that the active layers emit light having different wavelengths by group.Type: GrantFiled: June 26, 2015Date of Patent: October 4, 2016Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jae Hyeok Heo, Jung Sub Kim, Young Jin Choi, Jin Sub Lee, Sam Mook Kang, Yeon Woo Seo, Han Kyu Seong, Dae Myung Chun
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Publication number: 20160190388Abstract: There is provided a semiconductor light emitting device including a first conductivity-type semiconductor base layer and a plurality of light emitting nanostructures disposed to be spaced apart from one another on the first conductivity-type semiconductor base layer, each light emitting nanostructure including a first conductivity-type semiconductor core, an active layer, an electric charge blocking layer, and a second conductivity-type semiconductor layer, respectively, wherein the first conductivity-type semiconductor core has different first and second crystal planes in crystallographic directions.Type: ApplicationFiled: March 7, 2016Publication date: June 30, 2016Inventors: JIN SUB LEE, Jung Sub KIM, Sam Mook KANG, Yeon Woo SEO, Han Kyu SEONG, Dae Myung CHUN, Young Jin CHOI, Jae Hyeok HEO
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Publication number: 20160126419Abstract: There is provided a semiconductor light-emitting device including a base layer formed of a first conductivity-type semiconductor material, and a plurality of light-emitting nanostructures disposed on the base layer to be spaced apart from each other, and including first conductivity-type semiconductor cores, active layers, and second conductivity-type semiconductor layers. The first conductivity-type semiconductor cores include rod layers extending upwardly from the base layer, and capping layers disposed on the rod layers. Heights of the rod layers are different in at least a portion of the plurality of light-emitting nanostructures, and heights of the capping layers are different in at least a portion of the plurality of light-emitting nanostructures.Type: ApplicationFiled: October 22, 2015Publication date: May 5, 2016Inventors: Hyun Seong KUM, Dae Myung CHUN, Ji Hye YEON, Han Kyu SEONG, Jin Sub LEE, Young Jin CHOI, Jae Hyeok HEO
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Patent number: 9312439Abstract: There is provided a semiconductor light emitting device including a first conductivity-type semiconductor base layer and a plurality of light emitting nanostructures disposed to be spaced apart from one another on the first conductivity-type semiconductor base layer, each light emitting nanostructure including a first conductivity-type semiconductor core, an active layer, an electric charge blocking layer, and a second conductivity-type semiconductor layer, respectively, wherein the first conductivity-type semiconductor core has different first and second crystal planes in crystallographic directions.Type: GrantFiled: August 7, 2014Date of Patent: April 12, 2016Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jin Sub Lee, Jung Sub Kim, Sam Mook Kang, Yeon Woo Seo, Han Kyu Seong, Dae Myung Chun, Young Jin Choi, Jae Hyeok Heo
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Publication number: 20160099376Abstract: According to an example embodiment, a method of manufacturing a nanostructure semiconductor light-emitting device includes forming nanocores of a first-conductivity type nitride semiconductor material on abase layer to be spaced apart from each other, and forming a multilayer shell including an active layer and a second-conductivity type nitride semiconductor layers on surfaces of each of the nanocores. At least a portion the multilayer shell is formed by controlling at least one process parameter of a flux of source gas, a flow rate of source gas, a chamber pressure, a growth temperature, and a growth rate so as to have a higher film thickness uniformity.Type: ApplicationFiled: September 28, 2015Publication date: April 7, 2016Inventors: Jae Hyeok HEO, Jin Sub LEE, Young Jin CHOI, Hyun Seong KUM, Ji Hye YEON, Dae Myung CHUN, Jung Sub KIM, Han Kyu SEONG
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Patent number: 9269865Abstract: A nanostructure semiconductor light emitting device may include a first conductivity-type semiconductor base layer, a mask layer disposed on the base layer and having a plurality of openings exposing portions of the base layer, a plurality of light emitting nanostructures disposed in the plurality of openings, and a polycrystalline current suppressing layer disposed on the mask layer. At least a portion of the polycrystalline current suppressing layer is disposed below the second conductivity-type semiconductor layer. Each light emitting nanostructure includes a first conductivity-type semiconductor nanocore, an active layer, and a second conductivity-type semiconductor layer.Type: GrantFiled: October 16, 2014Date of Patent: February 23, 2016Assignee: Samsung Electronics Co., Ltd.Inventors: Dae Myung Chun, Jung Sub Kim, Jin Sub Lee, Sam Mook Kang, Yeon Woo Seo, Han Kyu Seong, Young Jin Choi, Jae Hyeok Heo
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Publication number: 20160013362Abstract: There is provided a nanostructure semiconductor light-emitting device including a base layer formed of a first conductivity-type semiconductor, an insulating layer disposed on the base layer and having a plurality of openings, and a plurality of light-emitting nanostructures disposed the plurality of openings, respectively. Each of light-emitting nanostructures includes a nanocore formed of a first conductivity-type semiconductor, and an active layer and a second conductivity-type semiconductor layer sequentially disposed on a surface of the nanocore. The plurality of light-emitting nanostructures are formed through the same growth process and divided into n groups (where n is an integer of two or more), each of which having at least two light-emitting nanostructures. At least one of a diameter, a height, and a pitch of the nanocores is different by group so that the active layers emit light having different wavelengths by group.Type: ApplicationFiled: June 26, 2015Publication date: January 14, 2016Inventors: Jae Hyeok HEO, Jung Sub KIM, Young Jin CHOI, Jin Sub LEE, Sam Mook KANG, Yeon Woo SEO, Han Kyu SEONG, Dae Myung CHUN
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Patent number: 9142724Abstract: A nitride-based semiconductor light-emitting device includes an n-type nitride-based semiconductor layer, an active layer, a p-type nitride-based semiconductor layer, an ohmic contact layer covering a portion of the p-type nitride-based semiconductor layer upper surface, and a p electrode including a first portion contacting the p-type nitride-based semiconductor layer and a second portion contacting the ohmic contact layer.Type: GrantFiled: August 22, 2013Date of Patent: September 22, 2015Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jung-sub Kim, Jin-sub Lee, Cheol-soo Sone, Kyung-wook Hwang
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Publication number: 20150236202Abstract: A nanostructure semiconductor light emitting device may include a first conductivity-type semiconductor base layer, a mask layer disposed on the base layer and having a plurality of openings exposing portions of the base layer, a plurality of light emitting nanostructures disposed in the plurality of openings, and a polycrystalline current suppressing layer disposed on the mask layer. At least a portion of the polycrystalline current suppressing layer is disposed below the second conductivity-type semiconductor layer. Each light emitting nanostructure includes a first conductivity-type semiconductor nanocore, an active layer, and a second conductivity-type semiconductor layer.Type: ApplicationFiled: October 16, 2014Publication date: August 20, 2015Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Dae Myung CHUN, Jung Sub KIM, Jin Sub LEE, Sam Mook KANG, Yeon Woo SEO, Han Kyu SEONG, Young Jin Choi, Jae Hyeok HEO
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Publication number: 20150194571Abstract: There is provided a semiconductor light emitting device including a first conductivity-type semiconductor base layer and a plurality of light emitting nanostructures disposed to be spaced apart from one another on the first conductivity-type semiconductor base layer, each light emitting nanostructure including a first conductivity-type semiconductor core, an active layer, an electric charge blocking layer, and a second conductivity-type semiconductor layer, respectively, wherein the first conductivity-type semiconductor core has different first and second crystal planes in crystallographic directions.Type: ApplicationFiled: August 7, 2014Publication date: July 9, 2015Inventors: Jin Sub LEE, Jung Sub KIM, Sam Mook KANG, Yeon Woo SEO, Han Kyu SEONG, Dae Myung CHUN, Young Jin CHOI, Jae Hyeok HEO
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Patent number: 9014259Abstract: An apparatus and method sequentially parses bitstreams based on a removal of an Emulation Prevention Byte (EPB). The apparatus and method may detect an EPB pattern from among sequentially input bitstreams, may store the bitstreams, may store a processed bitstream where the EPB pattern is removed, among the bitstreams, and may select an output of a register buffer based on an input of a buffer selection flag.Type: GrantFiled: December 20, 2011Date of Patent: April 21, 2015Assignees: Samsung Electronics Co., Ltd., Kwangwoon University Industry-Academic Collaboration FoundationInventors: Donggyu Sim, Doo Hyun Kim, Joon Ho Song, Shi Hwa Lee, Do Hyung Kim, Hyun Ho Cho, Jin Sub Lee, Jeong Han Seo
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Patent number: 9012884Abstract: A semiconductor light-emitting device includes a contact layer. The contact layer has the composition ratio of Al elements which varies gradually therein. A region formed by an Al element in the contact layer of the semiconductor light-emitting device may improve light extraction efficiency of the light emitted from an active layer and facilitate a formation of the reflective electrode.Type: GrantFiled: March 14, 2013Date of Patent: April 21, 2015Assignee: Samsung Electronics Co., Ltd.Inventors: Jung-Sub Kim, Sung-Won Hwang, Geun-Woo Ko, Cheol-Soo Sone, Sung-Hyun Sim, Jin-Sub Lee
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Publication number: 20140183546Abstract: A nitride-based semiconductor light-emitting device includes an n-type nitride-based semiconductor layer, an active layer, a p-type nitride-based semiconductor layer, an ohmic contact layer covering a portion of the p-type nitride-based semiconductor layer upper surface, and a p electrode including a first portion contacting the p-type nitride-based semiconductor layer and a second portion contacting the ohmic contact layer.Type: ApplicationFiled: August 22, 2013Publication date: July 3, 2014Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jung-sub KIM, Jin-sub LEE, Cheol-soo SONE, Kyung-wook HWANG