Patents by Inventor Heu-Gon Kim
Heu-Gon Kim 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: 8834005Abstract: A backlight assembly includes a light guide plate, a light source, a mold and a main frame. The light guide plate includes a first surface and a second surface extending from the first surface. The light source is disposed adjacent to the first surface of the light guide plate. The mold includes an upper portion, a lower portion and a side portion. The side portion connects to the upper and lower portions to form a receiving space, and the receiving space receives the light source and the first surface of the light guide plate. The main frame includes side walls and an upper wall extending from an upper portion of the side walls, and the mold is disposed in an opening below the upper wall.Type: GrantFiled: December 2, 2011Date of Patent: September 16, 2014Assignee: Samsung Display Co., Ltd.Inventors: Heu-Gon Kim, Jin-Hee Park, Sung-Kyu Shim, Jae-Hyun Kim
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Patent number: 8684586Abstract: A light guide plate includes a light incident surface to which light is incident as incident light, an opposite surface formed opposite to the light incident surface, a light emitting surface through which the incident light is emitted, a rear surface formed opposite to the light emitting surface and including a prism pattern which reflects the incident light to the light emitting surface, and lateral surfaces, wherein a diffuse reflection pattern is formed on at least any one of the light emitting surface and the lateral surfaces to diffuse-reflect light incident to the lateral surfaces, thus rendering a brightness at both the opposite surface and the light incident surface substantially uniform.Type: GrantFiled: September 10, 2013Date of Patent: April 1, 2014Assignee: Samsung Display Co., Ltd.Inventors: Hyoung-Joo Kim, Heu-Gon Kim, In-Sun Hwang, Taek Sun Shin, Byung-Seo Yoon
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Publication number: 20140009725Abstract: A light guide plate includes a light incident surface to which light is incident as incident light, an opposite surface formed opposite to the light incident surface, a light emitting surface through which the incident light is emitted, a rear surface formed opposite to the light emitting surface and including a prism pattern which reflects the incident light to the light emitting surface, and lateral surfaces, wherein a diffuse reflection pattern is formed on at least any one of the light emitting surface and the lateral surfaces to diffuse-reflect light incident to the lateral surfaces, thus rendering a brightness at both the opposite surface and the light incident surface substantially uniform.Type: ApplicationFiled: September 10, 2013Publication date: January 9, 2014Inventors: Hyoung-Joo KIM, Heu-Gon KIM, In-Sun HWANG, Taek Sun SHIN, Byung-Seo YOON
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Patent number: 8540412Abstract: A light guide plate includes a light incident surface to which light is incident as incident light, an opposite surface formed opposite to the light incident surface, a light emitting surface through which the incident light is emitted, a rear surface formed opposite to the light emitting surface and including a prism pattern which reflects the incident light to the light emitting surface, and lateral surfaces, wherein a diffuse reflection pattern is formed on at least any one of the light emitting surface and the lateral surfaces to diffuse-reflect light incident to the lateral surfaces, thus rendering a brightness at both the opposite surface and the light incident surface substantially uniform.Type: GrantFiled: July 19, 2010Date of Patent: September 24, 2013Assignee: Samsung Display Co., Ltd.Inventors: Hyoung-Joo Kim, Heu-Gon Kim, In-Sun Hwang, Taek-Sun Shin, Byung-Seo Yoon
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Patent number: 8436963Abstract: A backlight assembly including direct-type lamps and an edge-type lamp and a liquid crystal display having the backlight assembly. The direct-type lamps are arranged with a predetermined interval to emit light, and the edge-type lamp is provided at a side portion of a light guide plate provided above or below the direct-type lamps. The light guide plate and a light guide pattern output light, which is emitted from the edge-type lamp, through a space between two adjacent direct-type lamps. The backlight assembly supplies light to the light receiving region such that brightness is uniformly distributed throughout the light receiving region regardless of the position of the direct-type lamps.Type: GrantFiled: November 4, 2009Date of Patent: May 7, 2013Assignee: Samsung Display Co., Ltd.Inventors: Taek-Sun Shin, Byung-Seo Yoon, Heu-Gon Kim, Moon-Hwan Chang
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Patent number: 8334948Abstract: A backlight assembly includes; a plurality of light guide blocks disposed substantially in parallel with each other along a first direction, each of the plurality of light guide blocks including; a light guide plate (“LGP”) having a wedge-shape decreasing in thickness from a first side thereof to a second side thereof, and a light source unit disposed facing a side surface of the LGP, and a light source driving unit which individually controls the light source units of the plurality of light guide blocks to emit light via a local dimming method.Type: GrantFiled: April 23, 2012Date of Patent: December 18, 2012Assignee: Samsung Display Co., Ltd.Inventors: Heu-Gon Kim, In-Sun Hwang, Taek-Sun Shin, Byung-Seo Yoon, Yong-Woo Lee, Se-Ki Park
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Patent number: 8282260Abstract: A display apparatus includes a display panel, a light source and a plurality of a light guiding plate. The LGP includes light incident, counter, light emitting and rear surfaces. The counter and rear surfaces are respectively opposite to the light incident and light emitting surfaces. The light emitting surface includes an ineffective light emitting area making contact with the light incident surface and an effective light emitting area connecting the ineffective light emitting area with the counter surface. The counter surface of a first light guiding plate is disposed overlapping the light incident surface of a second light guiding plate along a first direction, so that the rear surface partially overlaps with the effective light emitting area of the second light guiding plate, and the light guiding plates collectively form a light guiding plate array along the first direction.Type: GrantFiled: September 18, 2009Date of Patent: October 9, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Heu-Gon Kim, Byung-Seo Yoon, Taek-Sun Shin, In-Sun Hwang
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Publication number: 20120206670Abstract: A backlight assembly includes; a plurality of light guide blocks disposed substantially in parallel with each other along a first direction, each of the plurality of light guide blocks including; a light guide plate (“LGP”) having a wedge-shape decreasing in thickness from a first side thereof to a second side thereof, and a light source unit disposed facing a side surface of the LGP, and a light source driving unit which individually controls the light source units of the plurality of light guide blocks to emit light via a local dimming method.Type: ApplicationFiled: April 23, 2012Publication date: August 16, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Heu-Gon KIM, In-Sun HWANG, Taek-Sun SHIN, Byung-Seo YOON, Yong-Woo LEE, Se-Ki PARK
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Publication number: 20120201044Abstract: A backlight assembly includes a light guide plate, a light source, a mold and a main frame. The light guide plate includes a first surface and a second surface extending from the first surface. The light source is disposed adjacent to the first surface of the light guide plate. The mold includes an upper portion, a lower portion and a side portion. The side portion connects to the upper and lower portions to form a receiving space, and the receiving space receives the light source and the first surface of the light guide plate. The main frame includes side walls and an upper wall extending from an upper portion of the side walls, and the mold is disposed in an opening below the upper wall.Type: ApplicationFiled: December 2, 2011Publication date: August 9, 2012Inventors: Heu-Gon Kim, Jin-Hee Park, Sung-Kyu Shim, Jae-Hyun Kim
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Patent number: 8199280Abstract: A backlight assembly includes; a plurality of light guide blocks disposed substantially in parallel with each other along a first direction, each of the plurality of light guide blocks including; a light guide plate (“LGP”) having a wedge-shape decreasing in thickness from a first side thereof to a second side thereof, and a light source unit disposed facing a side surface of the LGP, and a light source driving unit which individually controls the light source units of the plurality of light guide blocks to emit light via a local dimming method.Type: GrantFiled: May 21, 2009Date of Patent: June 12, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Heu-Gon Kim, In-Sun Hwang, Taek-Sun Shin, Byung-Seo Yoon, Yong-Woo Lee, Se-Ki Park
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Patent number: 8164708Abstract: A light guide plate for guiding light includes a light-incident portion allowing light generated from a light source to be incident thereon, a light-facing portion opposite to the light-incident portion, and a first prism pattern disposed between the light-incident portion and the light facing portion and substantially normal to a path of light incident from the light-incident portion to the light-facing portion path.Type: GrantFiled: July 24, 2008Date of Patent: April 24, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Heu-Gon Kim, In-Sun Hwang, Taek-Sun Shin, Byung-Seo Yoon, Sung-Kyu Shim
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Patent number: 8113705Abstract: Provided is an optical plate that resolves white screen generation while maintaining emission brightness, a backlight assembly and a display device including the same. The optical plate is a light guide plate for a liquid crystal display. The light guide plate includes at least one plane in which a plurality of uneven patterns forming crests and valleys are formed. The plurality of uneven patterns is formed such that the crests rise to a plurality of different heights.Type: GrantFiled: July 30, 2008Date of Patent: February 14, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Heu-Gon Kim, Taek-Sun Shin, In-Sun Hwang, Byung-Seo Yoon
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Patent number: 7995160Abstract: Disclosed are a prism sheet and a liquid crystal display having the same. The prism sheet includes a base and a plurality of prism mountains. The base includes a front surface and a rear surface facing the front surface. The prism mountains are integrally formed with the base on the rear surface of the base. At least one prism mountain includes a plurality of light incidence surfaces and a reflective surface. The light incidence surfaces receive light. The reflective surface is adjacent to one of the light incidence surfaces to reflect the light. A vertical angle of the prism mountains formed between the light incidence surface adjacent to the reflective surface and the reflective surface, is in a range of about 70° to about 100°.Type: GrantFiled: February 18, 2009Date of Patent: August 9, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Heu-Gon Kim, Seong-Yong Hwang, Kang-Woo Lee, In-Sun Hwang, Taek-Sun Shin, Byung-Seo Yoon, Seul-Gi Kim
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Patent number: 7974011Abstract: A dual prism sheet includes a base film, upper prisms formed on an upper surface of the base film and lower prisms formed on a lower surface of the base film. A cross-section of the upper and lower prisms is formed as an isosceles triangular shape having a base and a vertex angle, and a phase of the upper prisms is delayed between about 0 and about 0.5 times of a prism pitch with respect to a phase of the lower prisms.Type: GrantFiled: July 27, 2007Date of Patent: July 5, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Hyoung-Joo Kim, In-Sun Hwang, Heu-Gon Kim, Sung-Kyu Shim, Taek-Sun Shin
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Patent number: 7927001Abstract: In a backlight assembly and a display device including the backlight assembly, the backlight assembly includes a light dispersion member and a light source having a plurality of light source members, a distance defined between the light sources members adjacent to each other. The light dispersion member includes a lower face portion having alternately arranged ridges and grooves. Each light source is positioned under a respective ridge. An interval between a center of each light source and the respective ridge positioned directly over the light source is from about 0.2 to about 0.55 times the distance.Type: GrantFiled: November 28, 2005Date of Patent: April 19, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Seong-Sik Choi, Dong-Lyoul Shin, Jae-Hwan Chun, Byung-Yun Joo, Jung-Wook Paek, Jin-sung Choi, Ju-Hwa Ha, Heu-Gon Kim, Sang-Hoon Lee
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Patent number: 7847882Abstract: A backlight assembly includes a light source, a light-guide plate, a reflective sheet, a first prism sheet, a second prism sheet and a lateral reflective sheet. The light source generates light. The light-guide plate guides the light and has a plurality of first prism patterns adjacent to each other. The first prism patterns are formed on a first surface of the light-guide plate. The reflective sheet is disposed adjacent the first surface of the light-guide plate. The first and second prism sheets are disposed on a second surface of the light-guide plate. The lateral reflective sheet is disposed on the second prism sheet. The lateral reflective sheet includes reflective protrusions substantially parallel with a longitudinal direction of the light source. Therefore, brightness and display quality may be enhanced.Type: GrantFiled: October 19, 2007Date of Patent: December 7, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Heu-Gon Kim, In-Sun Hwang, Sung-Kyu Shim, Jin-Sung Choi, Hyoung-Joo Kim, Taek-Sun Shin, Byung-Seo Yoon
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Publication number: 20100277951Abstract: A light guide plate includes a light incident surface to which light is incident as incident light, an opposite surface formed opposite to the light incident surface, a light emitting surface through which the incident light is emitted, a rear surface formed opposite to the light emitting surface and including a prism pattern which reflects the incident light to the light emitting surface, and lateral surfaces, wherein a diffuse reflection pattern is formed on at least any one of the light emitting surface and the lateral surfaces to diffuse-reflect light incident to the lateral surfaces, thus rendering a brightness at both the opposite surface and the light incident surface substantially uniform.Type: ApplicationFiled: July 19, 2010Publication date: November 4, 2010Applicant: SAMSUNG ELECTRONICS CO. LTD.Inventors: Hyoung-Joo KIM, Heu- Gon KIM, In-Sun HWANG, Taek-Sun SHIN, Byung-Seo YOON
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Patent number: 7824093Abstract: A backlight assembly includes a light source, a light-guide plate (LGP), a reflective sheet and at least one optical sheet. The light source emits light. The LGP includes a light-incident surface, a light-reflecting surface and a light-emitting surface. The light-incident surface receives the light from the light source. The light-reflecting surface has a plurality of first prism patterns spaced apart from each other and flat portions formed between the first prism patterns, which are substantially perpendicular to the light-incident surface. The light-emitting surface has a plurality of second prism patterns formed thereon. The reflective sheet is disposed below the LGP. At least one optical sheet is disposed on the LGP.Type: GrantFiled: October 2, 2007Date of Patent: November 2, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Heu-Gon Kim, Byung-Seo Yoon, In-Sun Hwang, Taek-Sun Shin, Hyoung-Joo Kim, Seung-Hwan Chung
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Publication number: 20100149788Abstract: A display apparatus includes a display panel, a light source and a plurality of a light guiding plate. The LGP includes light incident, counter, light emitting and rear surfaces. The counter and rear surfaces are respectively opposite to the light incident and light emitting surfaces. The light emitting surface includes an ineffective light emitting area making contact with the light incident surface and an effective light emitting area connecting the ineffective light emitting area with the counter surface. The counter surface of a first light guiding plate is disposed overlapping the light incident surface of a second light guiding plate along a first direction, so that the rear surface partially overlaps with the effective light emitting area of the second light guiding plate, and the light guiding plates collectively form a light guiding plate array along the first direction.Type: ApplicationFiled: September 18, 2009Publication date: June 17, 2010Applicant: SAMSUNG ELECTRONICS CO., LTDInventors: Heu-Gon KIM, Byung-Seo YOON, Taek-Sun SHIN, In-Sun HWANG
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Publication number: 20100110337Abstract: A backlight assembly including direct-type lamps and an edge-type lamp and a liquid crystal display having the backlight assembly. The direct-type lamps are arranged with a predetermined interval to emit light, and the edge-type lamp is provided at a side portion of a light guide plate provided above or below the direct-type lamps. The light guide plate and a light guide pattern output light, which is emitted from the edge-type lamp, through a space between two adjacent direct-type lamps. The backlight assembly supplies light to the light receiving region such that brightness is uniformly distributed throughout the light receiving region regardless of the position of the direct-type lamps.Type: ApplicationFiled: November 4, 2009Publication date: May 6, 2010Inventors: Taek-Sun Shin, Byung-Seo Yoon, Heu-Gon Kim, Moon-Hwan Chang