Patents by Inventor Han-Moe Cha
Han-Moe Cha 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: 20190293970Abstract: A backlight assembly includes a light source portion including a plurality of light sources. The light sources are configured to emit light. A wavelength conversion member is disposed on the light source portion. The wavelength conversion member is configured to convert a wavelength of light emitted from the light source portion. The wavelength conversion member includes a first substrate disposed on the light source portion, a second substrate disposed on the first substrate, and a plurality of wavelength conversion layers interposed between the first substrate and the second substrate. Each of the plurality of wavelength conversion layers correspond to a light source of the plurality of light sources.Type: ApplicationFiled: June 12, 2019Publication date: September 26, 2019Inventors: DONG HOON KIM, DONG HYEON LEE, SEUNG HWAN BAEK, JU YOUNG YOON, HAN MOE CHA, YOUNG JUN CHOI
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Patent number: 10353223Abstract: A backlight assembly includes a light source portion including a plurality of light sources. The light sources are configured to emit light. A wavelength conversion member is disposed on the light source portion. The wavelength conversion member is configured to convert a wavelength of light emitted from the light source portion. The wavelength conversion member includes a first substrate disposed on the light source portion, a second substrate disposed on the first substrate, and a plurality of wavelength conversion layers interposed between the first substrate and the second substrate. Each of the plurality of wavelength conversion layers correspond to a light source of the plurality of light sources.Type: GrantFiled: December 20, 2016Date of Patent: July 16, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Dong Hoon Kim, Dong Hyeon Lee, Seung Hwan Baek, Ju Young Yoon, Han Moe Cha, Young Jun Choi
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Patent number: 10048423Abstract: A backlight unit that may be used with a liquid crystal display is presented. The backlight unit includes: a bottom chassis; a light source disposed at an edge of the bottom chassis; a light-converting member disposed on the light source and including quantum dots for changing a wavelength of light emitted from the light source; and a light guide disposed on the bottom chassis adjacent to the light-converting member and positioned to receive light emitted from the light-converting member.Type: GrantFiled: March 8, 2016Date of Patent: August 14, 2018Assignee: Samsung Display Co., Ltd.Inventors: Sang Hyuck Yoon, So Jeong La, Han Moe Cha, Seok Hyun Nam
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Patent number: 9658475Abstract: A backlight assembly includes a light source portion including a plurality of light sources. The light sources are configured to emit light. A wavelength conversion member is disposed on the light source portion. The wavelength conversion member is configured to convert a wavelength of light emitted from the light source portion. The wavelength conversion member includes a first substrate disposed on the light source portion, a second substrate disposed on the first substrate, and a plurality of wavelength conversion layers interposed between the first substrate and the second substrate. Each of the plurality of wavelength conversion layers correspond to a light source of the plurality of light sources.Type: GrantFiled: July 1, 2014Date of Patent: May 23, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Dong Hoon Kim, Dong Hyeon Lee, Seung Hwan Baek, Ju Young Yoon, Han Moe Cha, Young Jun Choi
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Patent number: 9650567Abstract: A wavelength converter and a liquid crystal display having the same, the wavelength converter including a first pattern that converts a wavelength of light into red light, and a second pattern that converts a wavelength of light into green light. The first pattern and the second pattern are alternately disposed, and an optical path length La of each of the first pattern and the second pattern is given by Equation (1): La=(?a/2)×m, wherein La is an optical length of an a-th pattern, ?a is a wavelength of light converted by the a-th pattern, a is one or two, and m is a natural number.Type: GrantFiled: April 4, 2014Date of Patent: May 16, 2017Assignee: Samsung Display Co., Ltd.Inventors: Hyun Hwa Song, Dong Hoon Kim, Sang Chul Byun, Sang Hoon Lee, Seung Hwan Chung, Han Moe Cha
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Publication number: 20170102586Abstract: A backlight assembly includes a light source portion including a plurality of light sources. The light sources are configured to emit light. A wavelength conversion member is disposed on the light source portion. The wavelength conversion member is configured to convert a wavelength of light emitted from the light source portion. The wavelength conversion member includes a first substrate disposed on the light source portion, a second substrate disposed on the first substrate, and a plurality of wavelength conversion layers interposed between the first substrate and the second substrate. Each of the plurality of wavelength conversion layers correspond to a light source of the plurality of light sources.Type: ApplicationFiled: December 20, 2016Publication date: April 13, 2017Inventors: DONG HOON KIM, DONG HYEON LEE, SEUNG HWAN BAEK, JU YOUNG YOON, HAN MOE CHA, YOUNG JUN CHOI
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Publication number: 20160266299Abstract: A backlight unit that may be used with a liquid crystal display is presented. The backlight unit includes: a bottom chassis; a light source disposed at an edge of the bottom chassis; a light-converting member disposed on the light source and including quantum dots for changing a wavelength of light emitted from the light source; and a light guide disposed on the bottom chassis adjacent to the light-converting member and positioned to receive light emitted from the light-converting member.Type: ApplicationFiled: March 8, 2016Publication date: September 15, 2016Inventors: Sang Hyuck YOON, So Jeong LA, Han Moe CHA, Seok Hyun NAM
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Patent number: 9240132Abstract: A nanophosphor sheet is presented. The nanophosphor sheet may include a base layer, a plurality of core-shell phosphors dispersed in the base layer, and a coating layer surrounding at least one core-shell phosphor among the plurality of core-shell phosphors. Also presented is a backlight device that includes a light source emitting light, a light guide plate receiving the light, and a plurality of core-shell phosphors positioned to receive the light and convert the light to white light. The core-shell phosphors may be incorporated into the light guide plate or be positioned on the light guide plate as a separate layer.Type: GrantFiled: February 6, 2013Date of Patent: January 19, 2016Assignee: Samsung Display Co., Ltd.Inventors: Dong Hoon Kim, Hyun-Hwa Song, Seung Hwan Chung, Young Jun Choi, Byung Choon Yang, Han Moe Cha
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Patent number: 9202399Abstract: A nanophosphor sheet is presented. The nanophosphor sheet may include a base layer, a plurality of core-shell phosphors dispersed in the base layer, and a coating layer surrounding at least one core-shell phosphor among the plurality of core-shell phosphors. Also presented is a backlight device that includes a light source emitting light, a light guide plate receiving the light, and a plurality of core-shell phosphors positioned to receive the light and convert the light to white light. The core-shell phosphors may be incorporated into the light guide plate or be positioned on the light guide plate as a separate layer.Type: GrantFiled: February 6, 2013Date of Patent: December 1, 2015Assignee: Samsung Display Co., Ltd.Inventors: Dong Hoon Kim, Hyun-Hwa Song, Seung Hwan Chung, Young Jun Choi, Byung Choon Yang, Han Moe Cha
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Patent number: 9117388Abstract: An approach is provided for a light source module and a display device including the same. The light source module includes two first light source packages configured to emit light of a first color, one or more second light source packages disposed between the two first light source packages, and a plurality of third light source packages disposed between the two first light source packages and alternately arranged with the one or more second light source packages. The one or more second light source packages are configured to emit light of the first color and the plurality of third light source packages are configured to emit light of a second color. An intensity of light emitted from each of the one or more second light source packages is approximately twice an intensity of light emitted from each of the two first light source packages.Type: GrantFiled: July 2, 2012Date of Patent: August 25, 2015Assignee: Samsung Display Co., Ltd.Inventors: Han Moe Cha, Yong-Hoon Kwon, Jung Kyun Kim, Ju Young Yoon
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Publication number: 20150226905Abstract: A quantum dot container may include a body that has a cavity and a hole. The hole may extend from the cavity to an outer surface of the body. The quantum dot container may further include a phosphor disposed inside the cavity. The quantum dot container may further include a sealing material disposed inside the hole.Type: ApplicationFiled: January 28, 2015Publication date: August 13, 2015Inventors: Sang-Hyuck YOON, Han-Moe CHA
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Publication number: 20150219936Abstract: A backlight assembly includes a light source portion including a plurality of light sources. The light sources are configured to emit light. A wavelength conversion member is disposed on the light source portion. The wavelength conversion member is configured to convert a wavelength of light emitted from the light source portion. The wavelength conversion member includes a first substrate disposed on the light source portion, a second substrate disposed on the first substrate, and a plurality of wavelength conversion layers interposed between the first substrate and the second substrate. Each of the plurality of wavelength conversion layers correspond to a light source of the plurality of light sources.Type: ApplicationFiled: July 1, 2014Publication date: August 6, 2015Inventors: Dong Hoon KIM, Dong Hyeon LEE, Seung Hwan BAEK, Ju Yung YOON, Han Moe CHA, Young Jun CHOI
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Publication number: 20150176804Abstract: A wavelength converter and a liquid crystal display having the same, the wavelength converter including a first pattern that converts a wavelength of light into red light, and a second pattern that converts a wavelength of light into green light. The first pattern and the second pattern are alternately disposed, and an optical path length La of each of the first pattern and the second pattern is given by Equation (1): La=(?a/2)×m, wherein La is an optical length of an a-th pattern, ?a is a wavelength of light converted by the a-th pattern, a is one or two, and m is a natural number.Type: ApplicationFiled: April 4, 2014Publication date: June 25, 2015Applicant: Samsung Display Co., Ltd.Inventors: Hyun Hwa SONG, Dong Hoon KIM, Sang Chul BYUN, Sang Hoon LEE, Seung Hwan CHUNG, Han Moe CHA
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Patent number: 9039269Abstract: A backlight assembly includes a first light source unit including n light emitting members; and a light guide plate including a first side adjacent to the first light source unit, and a first groove adjacent to a first end of the first side.Type: GrantFiled: January 20, 2012Date of Patent: May 26, 2015Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Byung-Seo Yoon, Ju-Young Yoon, Han-Moe Cha, Sang-Il Park, Hee-Kwang Song, Jung-Kyun Kim, Su-Chang Ryu
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Patent number: 8760049Abstract: A light source module includes a receiving container, a first light source, a second light source, a first resin, and a second resin. The receiving container includes an upper surface, a first bottom surface, and a second bottom surface. The first bottom surface has a first depth from the upper surface. The second bottom surface has a second depth from the upper surface. The first light source is disposed on the first bottom surface. The first light source generates first color light. The second light source is disposed on the second bottom surface. The second light source generates second color light. The first resin is formed on the first light source. The first resin includes a phosphor emitting third color light. The second resin is formed on the first resin and the second light source.Type: GrantFiled: August 4, 2011Date of Patent: June 24, 2014Assignee: Samsung Display Co., Ltd.Inventors: Han-Moe Cha, Ju-Young Yoon, Jin Seo
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Publication number: 20140056024Abstract: A nanophosphor sheet is presented. The nanophosphor sheet may include a base layer, a plurality of core-shell phosphors dispersed in the base layer, and a coating layer surrounding at least one core-shell phosphor among the plurality of core-shell phosphors. Also presented is a backlight device that includes a light source emitting light, a light guide plate receiving the light, and a plurality of core-shell phosphors positioned to receive the light and convert the light to white light. The core-shell phosphors may be incorporated into the light guide plate or be positioned on the light guide plate as a separate layer.Type: ApplicationFiled: February 6, 2013Publication date: February 27, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Dong Hoon KIM, Hyun-Hwa SONG, Seung Hwan CHUNG, Young Jun CHOI, Byung Choon YANG, Han Moe CHA
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Publication number: 20130241962Abstract: An approach is provided for a light source module and a display device including the same. The light source module includes two first light source packages configured to emit light of a first color, one or more second light source packages disposed between the two first light source packages, and a plurality of third light source packages disposed between the two first light source packages and alternately arranged with the one or more second light source packages. The one or more second light source packages are configured to emit light of the first color and the plurality of third light source packages are configured to emit light of a second color. An intensity of light emitted from each of the one or more second light source packages is approximately twice an intensity of light emitted from each of the two first light source packages.Type: ApplicationFiled: July 2, 2012Publication date: September 19, 2013Applicant: Samsung Display Co., Ltd.Inventors: Han Moe CHA, Yong-Hoon KWON, Jung Kyun KIM, Ju Young YOON
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Publication number: 20130021821Abstract: A backlight assembly includes a first light source unit including n light emitting members; and a light guide plate including a first side adjacent to the first light source unit, and a first groove adjacent to a first end of the first side.Type: ApplicationFiled: January 20, 2012Publication date: January 24, 2013Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Byung-Seo YOON, Ju-Young YOON, Han-Moe CHA, Sang-Il PARK, Hee-Kwang SONG, Jung-Kyun KIM, Su-Chang RYU
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Publication number: 20120195020Abstract: A light source module includes a receiving container, a first light source, a second light source, a first resin, and a second resin. The receiving container includes an upper surface, a first bottom surface, and a second bottom surface. The first bottom surface has a first depth from the upper surface. The second bottom surface has a second depth from the upper surface. The first light source is disposed on the first bottom surface. The first light source generates first color light. The second light source is disposed on the second bottom surface. The second light source generates second color light. The first resin is formed on the first light source. The first resin includes a phosphor emitting third color light. The second resin is formed on the first resin and the second light source.Type: ApplicationFiled: August 4, 2011Publication date: August 2, 2012Inventors: Han-Moe Cha, Ju-Young Yoon, Jin Seo