Patents by Inventor Seong-Yong Hwang
Seong-Yong Hwang 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: 9817269Abstract: A manufacturing method of a display apparatus includes providing a backlight unit under a display panel to provide a light to the display panel. The providing of the backlight unit includes disposing a light source on a substrate to emit the light, disposing a mask above the light source, which includes a first opening and a second opening greater than the first opening disposed under the first opening, and providing a transparent resin including a wavelength converting material on the light source through the first and second openings to form a wavelength converting member. A width in a cross section of the wavelength converting member along a direction substantially vertical to the substrate becomes smaller as a distance from the substrate becomes greater.Type: GrantFiled: June 24, 2015Date of Patent: November 14, 2017Assignee: Samsung Display Co., Ltd.Inventors: Eui Jeong Kang, Seong-Yong Hwang, Hyuk-Hwan Kim, Young-keun Lee
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Patent number: 9804443Abstract: A display apparatus includes plural light source units each including a light emitting device and a lens portion; a reflection sheet defining plural holes thereof and into which the light source units are respectively disposed; and a display panel on the reflection sheet. The lens portion defines: a body portion; and plural side protruding portions and respectively at opposing sides of the body portion in a first direction in a top plan view. The hole of the reflection sheet is defined by: an edge of a first hole; an edge of a second hole facing the first hole in a second direction crossing the first direction, the second hole larger than the first hole; and slanted edges connecting the first hole to the second hole. In a fixed state of the reflection sheet, a predetermined area of the reflection sheet adjacent to the slanted edges overlaps the side protruding portions.Type: GrantFiled: February 22, 2016Date of Patent: October 31, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Seong-yong Hwang, Byung-seo Yoon, Yong-hwi Kim, Minjeong Kim, Hyunjin Maeng, Kisoo Park, Soonick Jang
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Patent number: 9752753Abstract: Disclosed is a display device that can uniformly transmit light emitted from a light source to the entire display panel without using a light guide plate. The display device includes a display panel, a backlight assembly supplying light to the display panel, and a lower cover receiving the backlight assembly. The backlight assembly includes a light source, a circuit board mounted with the light source, and a reflection cover coupled to the circuit board to reflect light emitted from the light source and formed of a bendable plate type member.Type: GrantFiled: March 4, 2013Date of Patent: September 5, 2017Assignee: Samsung Display Co., Ltd.Inventors: Kyung-Min Kim, Sung-Kyu Shim, Yong-Hoon Kwon, Do Hun Kim, Dong Hyeon Lee, Seung Hwan Chung, Seung-Hwa Ha, Se Ki Park, Seong-Yong Hwang, You Ra Kim
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Patent number: 9722155Abstract: Provided is a LED light source package comprising a circuit board, a light source seated on an upper portion of the circuit board, and a lens structure arranged on the upper portion of the circuit board via the light source. A surface that faces the light source in the lens structure includes a first inclined surface that projects toward the light source as going to a center portion of the lens structure.Type: GrantFiled: June 13, 2016Date of Patent: August 1, 2017Assignee: Samsung Display Co., Ltd.Inventors: Byung Seo Yoon, Seong Yong Hwang, Kyung Min Kim, Young Min Park
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Patent number: 9696588Abstract: A display device includes an optical member, a display panel disposed on the optical member, and a plurality of light emitting units disposed under the optical member, the optical member comprising, a diffusion layer, and a reflectivity control layer which is disposed under the diffusion layer and reflects a light provided from the light emitting units, including a first base material, reflective materials dispersed in the first base material, a plurality of first portions corresponding to the plurality of light emitting units, and a second portion disposed adjacent to the first portions, where each of the plurality of first portions comprises a greater amount of the reflective materials than the second portion, when a first portion and a second portion represent a unit area having a predetermined size.Type: GrantFiled: April 13, 2016Date of Patent: July 4, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Juhwa Ha, Seong-Yong Hwang, Dohun Kim, Young-Min Park, Yongkyu Kang, Byung-Seo Yoon, Juyoun Son
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Patent number: 9658487Abstract: A display device includes a display panel which displays an image, a backlight unit which generates light and emits the light toward the display panel, a supporting member which supports edge parts of the display panel, and an accommodation member defining an accommodation space in which the backlight unit and the supporting member are disposed. In the accommodation space, the backlight unit includes a light source which generates the light, and a side-emitting lens which covers the light source and through which the light generated by the light source is emitted. In the accommodation space, the supporting member defines a plurality of stepped parts, where the plurality of stepped parts extended toward the light source has a light reflecting characteristic.Type: GrantFiled: September 15, 2015Date of Patent: May 23, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Byung-seo Yoon, Sanghoon Lee, Seong-yong Hwang
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Patent number: 9588273Abstract: A backlight unit including an optical pattern sheet and a liquid crystal display are provided. The backlight unit includes a light guide plate, a light source portion arranged adjacent to a side surface of the light guide plate to emit light, a mold frame having an extension portion that covers an upper portion of the light source portion and a part of an upper portion of the light guide plate, and an optical pattern sheet arranged on a lower portion of the extension portion to shade or diffuse incident light, wherein the optical pattern sheet includes a base film and an optical pattern portion positioned on the base film.Type: GrantFiled: April 21, 2014Date of Patent: March 7, 2017Assignee: Samsung Display Co., Ltd.Inventors: Hyun Hwa Song, Do Hun Kim, Dong Hoon Kim, Joong Hyun Kim, Sang Hoon Lee, Ji Won Lee, Seong Yong Hwang
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Patent number: 9568657Abstract: A light guide plate for a backlight. The light guide plate includes: a light source unit for generating light; a light guide plate proximate to the light source unit and including an upper surface and a lower surface; and a light emission pattern configured to diffuse a portion of the light directed toward an image display panel, and a first straight pattern configured to channel the light along a direction substantially parallel to a direction of propagation of the light generated by the light source unit, both the light emission pattern and the first straight pattern being disposed on one of the upper surface and the lower surface of the light guide plate, in which the first straight pattern has peaks and valleys formed in alternating and repeating manner in a direction substantially perpendicular to a direction of propagation of the light generated by the light source unit.Type: GrantFiled: March 24, 2014Date of Patent: February 14, 2017Assignee: Samsung Display Co., Ltd.Inventors: Min-Young Song, Seong-Yong Hwang, Joong-Hyun Kim, Sang-Won Lee, Jin-Sung Choi, Ju-Hwa Ha, Jin Seo, Yong-Kyu Kang
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Publication number: 20160370652Abstract: A display apparatus includes plural light source units each including a light emitting device and a lens portion; a reflection sheet defining plural holes thereof and into which the light source units are respectively disposed; and a display panel on the reflection sheet. The lens portion defines: a body portion; and plural side protruding portions and respectively at opposing sides of the body portion in a first direction in a top plan view. The hole of the reflection sheet is defined by: an edge of a first hole; an edge of a second hole facing the first hole in a second direction crossing the first direction, the second hole larger than the first hole; and slanted edges connecting the first hole to the second hole. In a fixed state of the reflection sheet, a predetermined area of the reflection sheet adjacent to the slanted edges overlaps the side protruding portions.Type: ApplicationFiled: February 22, 2016Publication date: December 22, 2016Inventors: Seong-yong HWANG, Byung-seo YOON, Yong-hwi KIM, Minjeong KIM, Hyunjin MAENG, Kisoo PARK, Soonick JANG
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Patent number: 9507177Abstract: A backlight assembly and a display including the same are disclosed. In one aspect, the backlight assembly includes a light source unit, a light guide plate including a light incident surface and a light facing surface formed on opposing ends thereof. The light incident surface receiving light irradiated from the light source surface. The backlight assembly also includes a first reflective member placed on the light facing surface and including a plurality of first color patterns facing the light facing surface.Type: GrantFiled: January 17, 2014Date of Patent: November 29, 2016Assignee: Samsung Display Co., Ltd.Inventors: Sang Won Lee, Seong Yong Hwang, Da Woon Kim
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Patent number: 9482899Abstract: Provided is a backlight unit including a printed circuit board, a light-emitting diode package, a diffusion plate, and a reflection sheet. The light-emitting diode package including a light-emitting part configured to generate a first light. The diffusion plate includes a first diffusion pattern provided on a first region corresponding to the light-emitting diode package and a second diffusion pattern provided on a second region to have a transmittance higher than that of the first diffusion pattern. The reflection sheet includes an absorption pigment configured to absorb a fraction of the first light with a specific wavelength and converting the first light to a second light, and the reflection sheet is configured to reflect the second light toward the first diffusion pattern. The backlight unit can have improved color coordinate uniformity.Type: GrantFiled: August 29, 2014Date of Patent: November 1, 2016Assignee: Samsung Display Co., Ltd.Inventors: Kang-Woo Lee, JoongHyun Kim, Sung-Kyu Shim, Seong-Yong Hwang, Dawoon Kim
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Publication number: 20160293814Abstract: Provided is a LED light source package comprising a circuit board, a light source seated on an upper portion of the circuit board, and a lens structure arranged on the upper portion of the circuit board via the light source. A surface that faces the light source in the lens structure includes a first inclined surface that projects toward the light source as going to a center portion of the lens structure.Type: ApplicationFiled: June 13, 2016Publication date: October 6, 2016Inventors: Byung Seo YOON, Seong Yong HWANG, Kyung Min KIM, Young Min PARK
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Publication number: 20160291408Abstract: A display device includes a display panel which displays an image, a backlight unit which generates light and emits the light toward the display panel, a supporting member which supports edge parts of the display panel, and an accommodation member defining an accommodation space in which the backlight unit and the supporting member are disposed. In the accommodation space, the backlight unit includes a light source which generates the light, and a side-emitting lens which covers the light source and through which the light generated by the light source is emitted. In the accommodation space, the supporting member defines a plurality of stepped parts, where the plurality of stepped parts extended toward the light source has a light reflecting characteristic.Type: ApplicationFiled: September 15, 2015Publication date: October 6, 2016Inventors: Byung-seo YOON, Sanghoon LEE, Seong-yong HWANG
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Publication number: 20160223868Abstract: A display device includes an optical member, a display panel disposed on the optical member, and a plurality of light emitting units disposed under the optical member, the optical member comprising, a diffusion layer, and a reflectivity control layer which is disposed under the diffusion layer and reflects a light provided from the light emitting units, including a first base material, reflective materials dispersed in the first base material, a plurality of first portions corresponding to the plurality of light emitting units, and a second portion disposed adjacent to the first portions, where each of the plurality of first portions comprises a greater amount of the reflective materials than the second portion, when a first portion and a second portion represent a unit area having a predetermined size.Type: ApplicationFiled: April 13, 2016Publication date: August 4, 2016Inventors: Juhwa HA, Seong-Yong HWANG, Dohun KIM, Young-Min PARK, Yongkyu KANG, Byung-Seo YOON, Juyoun SON
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Patent number: 9379297Abstract: Provided is a LED light source package comprising a circuit board, a light source seated on an upper portion of the circuit board, and a lens structure arranged on the upper portion of the circuit board via the light source. A surface that faces the light source in the lens structure includes a first inclined surface that projects toward the light source as going to a center portion of the lens structure.Type: GrantFiled: June 4, 2014Date of Patent: June 28, 2016Assignee: Samsung Display Co., Ltd.Inventors: Byung Seo Yoon, Seong Yong Hwang, Kyung Min Kim, Young Min Park
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Publication number: 20160146408Abstract: A manufacturing method of a display apparatus includes providing a backlight unit under a display panel to provide a light to the display panel. The providing of the backlight unit includes disposing a light source on a substrate to emit the light, disposing a mask above the light source, which includes a first opening and a second opening greater than the first opening disposed under the first opening, and providing a transparent resin including a wavelength converting material on the light source through the first and second openings to form a wavelength converting member. A width in a cross section of the wavelength converting member along a direction substantially vertical to the substrate becomes smaller as a distance from the substrate becomes greater.Type: ApplicationFiled: June 24, 2015Publication date: May 26, 2016Inventors: Eui Jeong KANG, Seong-Yong HWANG, Hyuk-Hwan KIM, Young-keun LEE
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Patent number: 9347651Abstract: A display device includes an optical member, a display panel disposed on the optical member, and a plurality of light emitting units disposed under the optical member, the optical member comprising, a diffusion layer, and a reflectivity control layer which is disposed under the diffusion layer and reflects a light provided from the light emitting units, including a first base material, reflective materials dispersed in the first base material, a plurality of first portions corresponding to the plurality of light emitting units, and a second portion disposed adjacent to the first portions, where each of the plurality of first portions comprises a greater amount of the reflective materials than the second portion, when a first portion and a second portion represent a unit area having a predetermined size.Type: GrantFiled: January 2, 2014Date of Patent: May 24, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Juhwa Ha, Seong-Yong Hwang, Dohun Kim, Young-Min Park, Yongkyu Kang, Byung-Seo Yoon, Juyoun Son
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Patent number: 9310547Abstract: A backlight assembly includes a light guide member extending in a direction and having a light incident surface and a light exiting surface. A light source faces the light guide member and supplies light to the light guide member through the light incident surface. A reflecting member reflects light exiting from the light exiting surface of the light guide member. The reflecting member includes a groove receiving the light guide member. A first reflecting portion is disposed under the light guide member and reflects light refracted by the light guide member in an upward direction. A second reflecting portion is disposed on the light guide member and reflects light refracted by the light guide member in a downward direction.Type: GrantFiled: June 5, 2013Date of Patent: April 12, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Young-Ran Son, Young-Min Park, Chang-Moo Lee, Seung-Hwa Ha, Seong-Yong Hwang
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Patent number: 9310546Abstract: A backlight unit includes a light source which generates light, a light guide plate which guides the light substantially in an upward direction, a first frame member which holds the light source and diffuses the light traveling substantially in the upward direction between the light source and the light guide plate, a second frame member which holds the light guide plate, a third frame member which holds the light guide plate, a reflective plate disposed under the light guide plate and which reflect the light leaked downwardly from the light guide plate substantially to the upward direction, and an optical sheet disposed on the light guide plate and the first to third frame members and which diffuses the light provided from the first frame member and the light guide plate and condenses the light substantially in the upward direction.Type: GrantFiled: January 2, 2014Date of Patent: April 12, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Dohun Kim, Jiwon Lee, Seong-Yong Hwang, Hyun-Hwa Song, Sangheon Ye, Sang Hoon Lee
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Publication number: 20150369451Abstract: A lens assembly for a backlight light source includes: a plurality of light emitters, where each of the light emitters includes a first light-emitting device and a second light-emitting device, and the first and second light-emitting devices emit light having different colors from each other; and a lens disposed on the light emitter to cover the light emitter, where the lens is substantially symmetric with respect to a center axis thereof and has a bar shape extending in a direction parallel to the center axis, the light emitters are spaced apart from each other in the direction parallel to the center axis, and the first light-emitting device and the second light-emitting device of each of the light emitters are spaced apart from each other in the direction parallel to the center axis.Type: ApplicationFiled: April 24, 2015Publication date: December 24, 2015Inventors: Seong-Yong HWANG, Sang Won LEE, Joong Hyun KIM, Min-Young SONG, Byung-Seo YOON, Gi Cherl KIM