Patents by Inventor Jong Rak Sohn
Jong Rak Sohn 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: 9705041Abstract: A light emitting device package, comprises a light emitting structure having first and second electrodes insulated from each other; and a support structure. The support structure comprises: a first support electrode electrically connected to the first electrode of the light emitting structure; a second support electrode electrically connected to the second electrode of the light emitting structure, the second support electrode spaced apart from, and electrically insulated from, the first support electrode; and a support connection portion between the first support electrode and the second support electrode. The light emitting structure includes a protrusion portion that protrudes in a horizontal direction beyond a sidewall of at least one of the first support electrode and the second support electrode so that a void is present below the protrusion portion and above a plane extending from bottoms of the first and second support electrodes.Type: GrantFiled: February 21, 2014Date of Patent: July 11, 2017Assignee: Samsung Electronics Co., LtdInventors: Sung Jun Im, Dong Hyun Cho, Jong Rak Sohn, Yong Min Kwon
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Patent number: 9553624Abstract: Disclosed are a card socket device and an electronic apparatus including the same. The card socket device includes a seat portion configured to receive an attachable card; and one or more connection terminal portions formed in the seat portion and configured to form an electrical connection with one or more connection pads formed in a bottom surface of the attachable card, wherein the seat portion is configured such that a space accommodating the attachable card is upwardly opened.Type: GrantFiled: August 14, 2015Date of Patent: January 24, 2017Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jae-bum Lee, Ki-sun Kim, Jong-rak Sohn, Seok-chan Lee, Dong-min Kim, Ju-seok Lee
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Publication number: 20160049977Abstract: Disclosed are a card socket device and an electronic apparatus including the same. The card socket device includes a seat portion configured to receive an attachable card; and one or more connection terminal portions formed in the seat portion and configured to form an electrical connection with one or more connection pads formed in a bottom surface of the attachable card, wherein the seat portion is configured such that a space accommodating the attachable card is upwardly opened.Type: ApplicationFiled: August 14, 2015Publication date: February 18, 2016Inventors: Jae-bum LEE, Ki-sun KIM, Jong-rak SOHN, Seok-chan LEE, Dong-min KIM, Ju-seok LEE
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Patent number: 9214606Abstract: A method of manufacturing a light-emitting diode package is illustrated. A light-emitting diode chip is manufactured. A material layer is formed on side surfaces and a rear surface of the light-emitting diode chip. The material layer is then oxidized to convert the material layer into an oxidized layer to form a reflective layer on the side surfaces and the rear surface of the light-emitting diode chip. The light-emitting diode chip is packaged.Type: GrantFiled: March 10, 2014Date of Patent: December 15, 2015Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Il-woo Park, Jong-rak Sohn
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Patent number: 9190335Abstract: An optical property evaluation apparatus includes: a light conversion filter converting light emitted from an LED chip or a bare LED package, which is to be evaluated, into a different wavelength of light, and emitting a specific color of light; and an optical property measurement unit receiving the specific color of light emitted from the light conversion filter and measuring the optical properties of the received light.Type: GrantFiled: October 18, 2013Date of Patent: November 17, 2015Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jong Rak Sohn, Il Woo Park
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Patent number: 9048172Abstract: A method of manufacturing a white light emitting device includes dividing a phosphor sheet into phosphor film units to be applied to individual light emitting diode (LED) devices, measuring light conversion characteristics of the respective phosphor film units, classifying the phosphor film units of the phosphor sheet into a plurality of groups according to measurement results of the light conversion characteristics and combining the phosphor film units classified into the plurality of groups and an LED device having predetermined light characteristics so as to obtain target color characteristics.Type: GrantFiled: April 21, 2014Date of Patent: June 2, 2015Assignee: Samsung Electronics Co., LtdInventors: Jong Rak Sohn, Seul Gee Lee, Chul Soo Yoon, Chang Bun Yoon, Min Jung Park, Sang Hoon Ahn
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Patent number: 8946748Abstract: There is provided a semiconductor light emitting device including: a light transmissive substrate; a light emitting part; first and second electrodes electrically connected to the first and second conductivity type semiconductor layers, respectively; and a rear reflective part including a reflective metallic layer, and a light transmissive dielectric layer interposed between the light transmissive substrate and the reflective metallic layer.Type: GrantFiled: May 23, 2012Date of Patent: February 3, 2015Assignee: Samsung Electronics Co., Ltd.Inventors: Tae Hun Kim, Seung Wan Chae, Yong Il Kim, Seung Jae Lee, Tae Sung Jang, Jong Rak Sohn, Bo Kyoung Kim
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Patent number: 8852972Abstract: A method of manufacturing a semiconductor light emitting device, includes forming a conductive film on a surface of a semiconductor light emitting element. Phosphor particles are charged by mixing phosphor particles with an electrolyte having a metallic salt dissolved therein. The semiconductor light emitting element having the conductive film formed thereon is immersed in the electrolyte having the charged phosphor particles. A phosphor layer on the conductive film is formed by electrophoresing the phosphor particles. The conductive film is removed using wet etching.Type: GrantFiled: February 15, 2013Date of Patent: October 7, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Jong Rak Sohn, Dong Kyun Yim, Seul Gee Lee, Chul Soo Yoon
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Publication number: 20140256071Abstract: A method of manufacturing a light-emitting diode package is illustrated. A light-emitting diode chip is manufactured. A material layer is formed on side surfaces and a rear surface of the light-emitting diode chip. The material layer is then oxidized to convert the material layer into an oxidized layer to form a reflective layer on the side surfaces and the rear surface of the light-emitting diode chip. The light-emitting diode chip is packaged.Type: ApplicationFiled: March 10, 2014Publication date: September 11, 2014Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Il-woo PARK, Jong-rak SOHN
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Publication number: 20140246648Abstract: A light emitting device package, comprises a light emitting structure having first and second electrodes insulated from each other; and a support structure. The support structure comprises: a first support electrode electrically connected to the first electrode of the light emitting structure; a second support electrode electrically connected to the second electrode of the light emitting structure, the second support electrode spaced apart from, and electrically insulated from, the first support electrode; and a support connection portion between the first support electrode and the second support electrode. The light emitting structure includes a protrusion portion that protrudes in a horizontal direction beyond a sidewall of at least one of the first support electrode and the second support electrode so that a void is present below the protrusion portion and above a plane extending from bottoms of the first and second support electrodes.Type: ApplicationFiled: February 21, 2014Publication date: September 4, 2014Applicant: Samsung Electronics Co., Ltd.Inventors: Sung Jun Im, Dong Hyun Cho, Jong Rak Sohn, Yong Min Kwon
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Publication number: 20140227806Abstract: A method of manufacturing a white light emitting device includes dividing a phosphor sheet into phosphor film units to be applied to individual light emitting diode (LED) devices, measuring light conversion characteristics of the respective phosphor film units, classifying the phosphor film units of the phosphor sheet into a plurality of groups according to measurement results of the light conversion characteristics and combining the phosphor film units classified into the plurality of groups and an LED device having predetermined light characteristics so as to obtain target color characteristics.Type: ApplicationFiled: April 21, 2014Publication date: August 14, 2014Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: JONG RAK SOHN, Seul Gee Lee, Chul Soo Yoon, Chang Bun Yoon, Min Jung Park, Sang Hoon Ahn
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Patent number: 8748847Abstract: A method of manufacturing a white light emitting device includes dividing a phosphor sheet into phosphor film units to be applied to individual light emitting diode (LED) devices, measuring light conversion characteristics of the respective phosphor film units, classifying the phosphor film units of the phosphor sheet into a plurality of groups according to measurement results of the light conversion characteristics and combining the phosphor film units classified into the plurality of groups and an LED device having predetermined light characteristics so as to obtain target color characteristics.Type: GrantFiled: December 21, 2012Date of Patent: June 10, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Jong Rak Sohn, Seul Gee Lee, Chul Soo Yoon, Chang Bun Yoon, Min Jung Park, Sang Hoon Ahn
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Publication number: 20140141283Abstract: A method of manufacturing a phosphor resin film and a phosphor resin film manufactured thereby are provided. The method of manufacturing a phosphor resin film includes preparing a polymer slurry by mixing a polymer resin and a latent curing agent in a solvent, spreading the polymer slurry such that it has a film shape, drying the spread polymer slurry to form a semi-hardened resin film, and providing phosphor powder to the semi-hardened resin film. A phosphor resin film includes semi-hardened resin film including a polymer resin and a latent curing agent and phosphors uniformly formed on one surface of the semi-hardened resin film.Type: ApplicationFiled: August 12, 2011Publication date: May 22, 2014Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Seung Jae Lee, Na Na Park, Gyeong Seon Seon Park, Bo Kyoung Kim, Jong Rak Sohn, Chang Hoon Kwak
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Publication number: 20140080230Abstract: An optical property evaluation apparatus includes: a light conversion filter converting light emitted from an LED chip or a bare LED package, which is to be evaluated, into a different wavelength of light, and emitting a specific color of light; and an optical property measurement unit receiving the specific color of light emitted from the light conversion filter and measuring the optical properties of the received light.Type: ApplicationFiled: October 18, 2013Publication date: March 20, 2014Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jong Rak SOHN, Il Woo PARK
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Patent number: 8378568Abstract: Provided is a white light emitting diode (LED) including a blue LED chip; and yellow, green, and red light emitting phosphors that are coated on the blue LED chip at a predetermined mixing ratio and converts light, emitted from the blue LED chip, into white light.Type: GrantFiled: July 14, 2011Date of Patent: February 19, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Jong Rak Sohn, Chul Soo Yoon, Chang Hoon Kwak, Il Woo Park
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Patent number: 8349212Abstract: A white light emitting device capable of expanding the wavelength range of a blue LED used for realizing white light. The white light emitting device according to the present invention includes a blue LED and a mixture of orange phosphor and green phosphor disposed above the blue LED.Type: GrantFiled: September 17, 2010Date of Patent: January 8, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Chul Soo Yoon, Jong Rak Sohn, Il Woo Park
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Publication number: 20120298954Abstract: There are provided a semiconductor light emitting device and a manufacturing method of the same. The semiconductor light emitting device includes a light emitting structure including first and second conductive semiconductor layers with an active layer interposed therebetween; first and second bonding electrodes connected to the first and second conductive semiconductor layers, respectively; a transparent electrode layer formed on the second conductive semiconductor layer; a plurality of nano structures formed on the transparent electrode layer; and a passivation layer formed to cover the plurality of nano-structures, wherein refractive indexes of the transparent electrode layer, the plurality of nano-structures, and the passivation layer may be sequentially reduced.Type: ApplicationFiled: May 24, 2012Publication date: November 29, 2012Inventors: Sang Yeon KIM, Jong Rak Sohn, Gi Bum Kim, Su Yeol Lee, Yong II Kim
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Publication number: 20120299040Abstract: There is provided a semiconductor light emitting device including: a light transmissive substrate; a light emitting part; first and second electrodes electrically connected to the first and second conductivity type semiconductor layers, respectively; and a rear reflective part including a reflective metallic layer, and a light transmissive dielectric layer interposed between the light transmissive substrate and the reflective metallic layer.Type: ApplicationFiled: May 23, 2012Publication date: November 29, 2012Inventors: Tae Hun KIM, Seung Wan CHAE, Yong Il KIM, Seung Jae LEE, Tae Sung JANG, Jong Rak SOHN, Bo Kyoung KIM
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Patent number: 8098005Abstract: A white light emitting device including: a blue light emitting diode (LED); a green silicate phosphor formed on the blue LED; and a red sulfide phosphor with a surface coated with a silicone oxide layer, the red sulfide phosphor formed on the blue LED.Type: GrantFiled: January 17, 2008Date of Patent: January 17, 2012Assignee: Samsung LED Co., Ltd.Inventors: Chang Hoon Kwak, Young Mok Lee, Il Woo Park, Jong Rak Sohn, Chul Soo Yoon
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Publication number: 20110266584Abstract: Provided is a white light emitting diode (LED) including a blue LED chip; and yellow, green, and red light emitting phosphors that are coated on the blue LED chip at a predetermined mixing ratio and converts light, emitted from the blue LED chip, into white light.Type: ApplicationFiled: July 14, 2011Publication date: November 3, 2011Applicant: Samsung LED Co., Ltd.Inventors: Jong Rak SOHN, Chul Soo Yoon, Chang Hoon Kwak, Il Woo Park