Patents by Inventor Jeong Og Choi
Jeong Og Choi 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: 11698480Abstract: The present invention relates to an optical article, and an optical filter and an imaging device including the same. The optical article comprises: a near-infrared absorption glass substrate including a divalent copper ion as a chromatic ingredient; and a pigment dispersion layer formed on one surface or both surfaces of the near-infrared absorption glass substrate and having a near-infrared absorption pigment and an ultraviolet absorption pigment dispersed across the resin matrix thereof. Provided with a first and a second transmission cut-off region, the optical article has the advantage of allowing the fabrication of an excellent near-infrared cut-off filter that can effectively block light in near-infrared and ultraviolet bands and does not permit a difference in color sense with the change of incident angles.Type: GrantFiled: September 21, 2018Date of Patent: July 11, 2023Assignee: LMS CO., LTD.Inventors: Jeong Og Choi, Joo Young Kim, Seon Ho Yang, Min Soo Lee, Yong Won Choi
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Publication number: 20210382213Abstract: Provided is a near-infrared ray absorbing article. A near-infrared ray absorbing article of the present invention is capable of preventing a decrease in visible transmittance and near-infrared absorption due to the interaction between a plurality of organic materials forming light-absorbing layers. In addition, the near-infrared ray absorbing article of the present invention has the advantage of being able to be thinner. In addition, the near-infrared ray absorbing article of the present invention has the advantage of excellent mechanical properties such as strength and heat resistance.Type: ApplicationFiled: December 1, 2020Publication date: December 9, 2021Inventors: Sung Hwan MOON, Seon Ho YANG, Choon Woo JI, Nam Woo KANG, Joon Ho JUNG, Bo Chul KANG, Hee Kyeong KIM, Jeong Og CHOI, Seong Yong YOON
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Patent number: 11177443Abstract: A light emitting diode according to the present invention comprises: a first electrode; an organic layer provided on the first electrode; a light emitting layer provided on the organic layer; an electron transport layer provided on the light emitting layer; and a second electrode provided on the electron transport layer, wherein the organic layer includes a compound represented by Chemical Formula 1. In Chemical Formula 1, below, Ar1, Ar2, Ar3, L1, L2, L3 and Y are as defined in the present specification.Type: GrantFiled: August 20, 2016Date of Patent: November 16, 2021Assignee: LMS CO., LTDInventors: Jeong Og Choi, Joon Ho Jung
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Publication number: 20210280621Abstract: The present invention relates to an optical disc capable of positioning a fingerprint recognition region in a screen of a display, and an optical filter comprising same. The optical disc according to the present invention comprises a light absorption layer, which transmits light in a green region of visible light to increase a fingerprint recognition rate and effectively absorbs light in a red region so as to suppress a phenomenon in which the fingerprint recognition region in the screen of the display appears in red.Type: ApplicationFiled: July 1, 2019Publication date: September 9, 2021Inventors: Jeong Og CHOI, Jin Hwan KIM, Young Soo AN, Seon Ho YANG, Tae Kwang PARK, Woo Joo LAH
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Patent number: 10908081Abstract: The present invention relates to an optical article and an optical filter including the same. The optical filter: includes an optical article which has at least two absorption peaks, including a first and a second absorption peak, in the wavelength range of 380 nm to 1,200 nm by containing two or more kinds of near-infrared absorbing pigments, and thus shows a high average transmittance of 86% or greater for light having a wavelength in the visible wavelength range; can limit the maximum transmittance of light having a wavelength in the range of 800 nm to 1,100 nm below 0.5%, so as to prevent lens flare; and can reduce assembly defects due to flexure of an optical filter in the process of assembling the optical filter to an image capturing apparatus, thereby improving yield and productivity.Type: GrantFiled: April 4, 2018Date of Patent: February 2, 2021Assignee: LMS CO., LTDInventors: Jeong Og Choi, Joon Ho Jung, Seon Ho Yang, Jin Ho Jung, Joo Young Kim
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Patent number: 10767030Abstract: The present invention relates to an optical article and an optical filter comprising the same. The optical filter comprises an optical article containing one or more near-infrared absorbing dyes and having two or more absorption peaks comprising a first absorption peak and a second absorption peak in a wavelength range of 380 nm to 1,200 nm whereby the optical filter has advantages in that transmissivity is high with respect to light having the wavelength of a visible light region and transmissivity is suppressed to 0.6% or less with respect to light having a wavelength in the range of 800 nm to 1,000 nm so that ghost image problems can be prevented, and a yield and productivity can be improved through the reduction of poor assembly caused by the bending of the optical filter in an image device assembling process.Type: GrantFiled: February 16, 2017Date of Patent: September 8, 2020Assignee: LMS Co., Ltd.Inventors: Jeong Og Choi, Joon Ho Jung, Jin Ho Jung, Joo Young Kim, Seon Ho Yang
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Publication number: 20200241185Abstract: The present invention relates to an optical article, and an optical filter and an imaging device including the same. The optical article comprises: a near-infrared absorption glass substrate including a divalent copper ion as a chromatic ingredient; and a pigment dispersion layer formed on one surface or both surfaces of the near-infrared absorption glass substrate and having a near-infrared absorption pigment and an ultraviolet absorption pigment dispersed across the resin matrix thereof. Provided with a first and a second transmission cut-off region, the optical article has the advantage of allowing the fabrication of an excellent near-infrared cut-off filter that can effectively block light in near-infrared and ultraviolet bands and does not permit a difference in color sense with the change of incident angles.Type: ApplicationFiled: September 21, 2018Publication date: July 30, 2020Applicant: LMS Co., Ltd.Inventors: Jeong Og CHOI, Joo Young KIM, Seon Ho YANG, Min Soo LEE, Yong Won CHOI
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Publication number: 20200072741Abstract: The present invention relates to an optical article and an optical filter including the same. The optical filter: includes an optical article which has at least two absorption peaks, including a first and a second absorption peak, in the wavelength range of 380 nm to 1,200 nm by containing two or more kinds of near-infrared absorbing pigments, and thus shows a high average transmittance of 86% or greater for light having a wavelength in the visible wavelength range; can limit the maximum transmittance of light having a wavelength in the range of 800 nm to 1,100 nm below 0.5%, so as to prevent lens flare; and can reduce assembly defects due to flexure of an optical filter in the process of assembling the optical filter to an image capturing apparatus, thereby improving yield and productivity.Type: ApplicationFiled: April 4, 2018Publication date: March 5, 2020Inventors: Jeong Og CHOI, Joon Ho JUNG, Seon Ho YANG, Jin Ho JUNG, Joo Young KIM
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Patent number: 10522764Abstract: The present invention relates to a compound, and a light-emitting element and an electronic device including the same, and, more particularly, to a compound for an organic light-emitting element, and a light-emitting element and an electronic device including the same. The compound according to the present invention can improve hole injection and/or transport abilities.Type: GrantFiled: August 9, 2013Date of Patent: December 31, 2019Assignee: LMS Co., Ltd.Inventors: Jeong Og Choi, Oh Kwan Kwon, Joon Ho Jung
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Publication number: 20190055375Abstract: The present invention relates to an optical article and an optical filter comprising the same. The optical filter comprises an optical article containing one or more near-infrared absorbing dyes and having two or more absorption peaks comprising a first absorption peak and a second absorption peak in a wavelength range of 380 nm to 1,200 nm whereby the optical filter has advantages in that transmissivity is high with respect to light having the wavelength of a visible light region and transmissivity is suppressed to 0.6% or less with respect to light having a wavelength in the range of 800 nm to 1,000 nm so that ghost image problems can be prevented, and a yield and productivity can be improved through the reduction of poor assembly caused by the bending of the optical filter in an image device assembling process.Type: ApplicationFiled: February 16, 2017Publication date: February 21, 2019Applicant: LMS Co.,Ltd.Inventors: Jeong Og Choi, Joon Ho Jung, Jin Ho Jung, Joo Young Kim, Seon Ho Yang
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Patent number: 10141534Abstract: A novel compound according to the present invention may improve the capability of transporting electrons to a light-emitting layer in a light-emitting device, and may improve the light-emitting efficiency and increase the lifespan of the light-emitting device by using the compound.Type: GrantFiled: April 7, 2014Date of Patent: November 27, 2018Assignee: LMS CO.,LTD.Inventors: Jeong Og Choi, Joon Ho Jung, Oh Kwan Kwon
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Patent number: 10141519Abstract: A novel compound for improving the hole injection and transport properties in a light emitting device, a light emitting device including the compound, and an electronic device including a light emitting device are provided.Type: GrantFiled: January 28, 2014Date of Patent: November 27, 2018Assignee: LMS CO., LTD.Inventors: Jeong Og Choi, Joon Ho Jung, Oh Kwan Kwon
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Patent number: 10083774Abstract: The present invention provides a quantum dot encapsulated by a siloxane including an alkyl group having 4 or more carbon atoms, a composition including the same, and a device to which the composition is applied, and when the encapsulated quantum dot is used, quantum yield and dispersion stability may be enhanced.Type: GrantFiled: July 3, 2013Date of Patent: September 25, 2018Assignee: LMS Co., Ltd.Inventors: Doo Hyo Kwon, Jeong Og Choi, Oh Kwan Kwon
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Publication number: 20180240984Abstract: A light emitting diode according to the present invention comprises: a first electrode; an organic layer provided on the first electrode; a light emitting layer provided on the organic layer; an electron transport layer provided on the light emitting layer; and a second electrode provided on the electron transport layer, wherein the organic layer includes a compound represented by Chemical Formula 1 below: In the above Chemical Formula 1, Ar1, Ar2, Ar3, L1, L2, L3 and Y are as defined in the present specification.Type: ApplicationFiled: August 20, 2016Publication date: August 23, 2018Applicant: LMS Co.,Ltd.Inventors: Jeong Og CHOI, Joon Ho JUNG
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Patent number: 10050208Abstract: The present invention suggest a novel compound for improving the capability of injecting and/or transporting a hole in a light-emitting element, and a light-emitting element and an electronic device including the same, and may improve the light-emitting efficiency of the light-emitting element, and increase the lifespan thereof. In addition, the present invention may improve thermal stability (heat resistance) of the light-emitting element.Type: GrantFiled: November 28, 2013Date of Patent: August 14, 2018Assignee: LMS CO., LTD.Inventors: Jeong Og Choi, Joon Ho Jung, Oh Kwan Kwon
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Patent number: 9966538Abstract: A novel compound for improving the power efficiency and the lifespan of a light-emitting element, and a light-emitting element and an electronic device including the same are provided. And the new compound may provide excellent light-emitting efficiency and extended lifespan, and may improve thermal stability (heat resistance) for the electronic device.Type: GrantFiled: November 7, 2013Date of Patent: May 8, 2018Assignee: LMS CO., LTD.Inventors: Jeong Og Choi, Joon Ho Jung, Oh Kwan Kwon
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Patent number: 9884992Abstract: In an optical sheet and a backlight unit comprising same, the optical sheet comprises: a first transparent film, a first barrier layer; and an light conversion layer, wherein the first barrier layer is formed on one surface of the first transparent film, the light conversion layer is formed on top of the first barrier layer, and wherein at least one of a light-emitting composite including a wax particle and a nano light-emitting body that is disposed inside the wax particle, and a fluorescent particle is dispersed.Type: GrantFiled: November 7, 2013Date of Patent: February 6, 2018Assignee: LMS CO., LTD.Inventors: Jeong Og Choi, Oh Kwan Kwon, Byeong Cheol Kim
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Patent number: 9842998Abstract: In a novel compound, and a light emitting diode and an electronic apparatus including the same, the novel compound is represented by the following Chemical Formula 1.Type: GrantFiled: September 18, 2013Date of Patent: December 12, 2017Assignee: LMS CO., LTD.Inventors: Jeong Og Choi, Joon Ho Jung, Oh Kwan Kwon
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Patent number: 9680107Abstract: Provided are a novel compound and an organic electronic device (OED) including the same. The novel compound has better hole injection and hole transport properties than a conventional material, and thus may enhance thermal stability and efficiency when used as a material for a hole injection or hole transport layer of the OED.Type: GrantFiled: May 25, 2012Date of Patent: June 13, 2017Assignee: LMS Co., Ltd.Inventors: Joon Ho Jung, Jeong Og Choi, Oh Kwan Kwon, Ah Reum Hwang
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Patent number: 9614163Abstract: A light-emitting diode includes: a first electrode; a second electrode; a light-emitting layer disposed between the first electrode and the second electrode; a hole transportable layer disposed between the first electrode and the light-emitting layer; and a blocking layer, which is disposed between the hole transportable layer and the light-emitting layer and includes a compound represented by the following Chemical Formula 1.Type: GrantFiled: September 18, 2013Date of Patent: April 4, 2017Assignee: LMS Co., Ltd.Inventors: Jeong Og Choi, Joon Ho Jung, Oh Kwan Kwon