Patents by Inventor Hyuk-Hwan Kim
Hyuk-Hwan 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: 10042104Abstract: A curved display device includes a display panel having a curved shape and including a display area having a curved surface and a backlight assembly providing a light to the display panel. The backlight assembly includes a plurality of light sources, a printed circuit board on which the light sources are mounted, and a light guiding plate. The light guiding plate has a curved shape and guides the light provided from the light sources to the display panel. The light sources are sequentially arranged along the curved direction of the light guiding plate, and a longitudinal direction of at least one of the light sources is different from a longitudinal direction of the other light sources.Type: GrantFiled: December 11, 2015Date of Patent: August 7, 2018Assignee: Samsung Display Co., Ltd.Inventors: Donghwan Kim, Young-Min Park, Hyuk-Hwan Kim, Seokhyun Nam
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Patent number: 10013926Abstract: A display apparatus includes a display panel including a plurality of subpixels, where each subpixel includes one of a first color filter having a first primary color, a second color filter having a second primary color and a third color filter having a third primary color, and a light source part which provides light to the display panel, where the light source part includes a first light source which generates a first light having the first primary color and a second light source which generates a second light having a mixed color of the second primary color and the third primary color, where the first light source and the second light source are alternately in a turned-on state.Type: GrantFiled: October 15, 2014Date of Patent: July 3, 2018Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyuk-Hwan Kim, Jae-Sul An, Hyun-Jeong Kim, Seok-Hyun Nam
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Patent number: 9971197Abstract: A light source module includes a printed circuit board including a wiring layer, an insulating coating layer disposed on the wiring layer, and a reflection adjustment pattern disposed on the insulating coating layer and having reflection characteristics which are different from reflection characteristics of the insulating coating layer, a light emitting chip mounted on the printed circuit board, and an optical lens arranged on an upper portion of the light emitting chip and fixed to the printed circuit board.Type: GrantFiled: May 21, 2014Date of Patent: May 15, 2018Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Si Joon Song, Hyuk Hwan Kim, Hyun Jeong Kim, Seok Hyun Nam, Young Keun Lee
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Publication number: 20180106940Abstract: A display apparatus includes a light source which generates a first light, a display module which displays an image, a light guide plate disposed under the display module, and an optical filter disposed under the light guide plate to face the display module. The optical filter includes a filter layer which transmits a portion of the first light from the light guide plate and reflects a remaining portion of the first light except for the portion and an absorbing layer disposed under the filter layer to absorb the first light transmitted thereto through the filter layer. As an incident angle of the first light incident to the filter layer with respect to a normal line of an upper surface of the filter layer increases, an overlapping bandwidth between a reflection wavelength bandwidth of the filter layer and a wavelength bandwidth of the first light increases.Type: ApplicationFiled: June 28, 2017Publication date: April 19, 2018Inventors: Kyung-min KIM, Hyuk-hwan KIM, Youngchun KIM
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Publication number: 20180088266Abstract: A display apparatus includes a display module including a light conversion member including a plurality of quantum dots, a backlight unit providing a first light to the display module, and an optical filter disposed between the display module and the backlight unit. The optical filter includes a transmission filter layer transmitting a light in the first wavelength range and a second wavelength range, reflecting a light in a third wavelength range, and having a first effective refractive index and a viewing angle control layer disposed between the transmission filter layer and the display module to couple the transmission filter layer and the display module and having a second effective refractive index equal to or smaller than the first effective refractive index.Type: ApplicationFiled: April 27, 2017Publication date: March 29, 2018Inventors: Youngchun KIM, Kyung-min KIM, Hyuk-hwan KIM, Hee-kwang SONG
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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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Publication number: 20170315404Abstract: A display device includes a display panel and a backlight assembly. A light source unit of the backlight assembly includes a light source board including a conductive pattern, a light emitting chip on the light source board and electrically connected to the conductive pattern, a wavelength conversion member covering the light emitting chip and converting a wavelength of light emitted from the light emitting chip; and diffusion particles in the wavelength conversion member. The light emitting chip includes a rear surface facing the light source board, a top surface opposite to the rear surface and a side surface connecting the rear surface to the top surface. A density of the diffusion particles in the wavelength conversion member at the top surface of the light emitting chip is greater than a density of the diffusion particles in the wavelength conversion member at the side surface of the light emitting chip.Type: ApplicationFiled: April 26, 2017Publication date: November 2, 2017Inventors: Byoungdae YE, Hyuk-hwan KIM
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Publication number: 20170315289Abstract: A light source assembly includes a light source board in which a first groove is defined; a light emitting chip which is the first groove and generates light; and a light conversion unit which is in the first groove to overlap the light emitting chip and emit converted light which is provided to a display panel which displays an image with the converted light. The light conversion unit includes a lower substrate in which a second groove is defined to face the light emitting chip; an upper substrate coupled to the lower substrate and in which a third groove is defined; and a wavelength conversion layer which converts the wavelength of the light provided from the light emitting chip and emits the converted light, the wavelength conversion layer in the third groove and between the lower substrate and the upper substrate to overlap the light emitting chip.Type: ApplicationFiled: April 28, 2017Publication date: November 2, 2017Inventors: Hanmoe CHA, Euijeong KANG, Hyuk-hwan KIM, Yeongbae LEE
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Publication number: 20170171962Abstract: A display device includes a light source unit, a light guide plate including a light incident surface, an opposite surface, a light exit surface, and a light exit rear surface, a display panel provided on the light exit surface, a bottom chassis for housing the light guide plate, and an anti-static electricity member including a fluoride resin and contacting the bottom chassis, where the bottom chassis includes a bottom section and a sidewall section perpendicularly connected from the bottom section, and the sidewall section includes a first sidewall section more adjacent close to the light incident surface than the opposite surface, a second sidewall section, a third sidewall section, and the fourth sidewall section, and the anti-static electricity member is provided between the first sidewall section and the light source unit and contacting at least a portion of the first sidewall section.Type: ApplicationFiled: June 28, 2016Publication date: June 15, 2017Inventors: Sang-chul BYUN, Hyuk-hwan KIM, Seokhyun NAM
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Publication number: 20170168230Abstract: A display device includes a backlight unit including a light guide plate including a light incident surface, an opposite surface facing the light incident surface, a light exit surface connecting the light incident surface and the opposite surface, and a light exit rear surface facing the light exit surface, a light source unit including a light source facing the light incident surface and a flexible printed circuit board disposed on a surface of the light source, a first coupling member disposed on a portion of the light exit rear surface, and a second coupling member disposed on a portion of the flexible printed circuit board, and a display panel disposed above the backlight unit where the first coupling member and the second coupling member are coupled to each other by a magnetic force.Type: ApplicationFiled: September 19, 2016Publication date: June 15, 2017Inventors: Sang-chul BYUN, Hyuk-hwan KIM, Seokhyun NAM
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Patent number: 9520386Abstract: A method of protecting an LED chip from damage by ESD and EMI when the LED chip is housed in a light-emitting diode(s) housing package (LED package) and the LED package is mounted on a printed circuit board is provided. The method comprises a step of not including an ESD and EMI suppressing Zener diode within the combination of the printed circuit board and the LED package and of providing within the combination of the printed circuit board and the LED package a first conductive member and a spaced apart second conductive member which are electrically connected to the LED chip and which have defined between them at least one insulative ESD and/or EMI suppressing region which breaks down in its insulative properties when subjected to voltages of absolute magnitudes greater than a predetermined threshold voltage.Type: GrantFiled: April 25, 2014Date of Patent: December 13, 2016Assignee: Samsung Display Co., Ltd.Inventors: Si Joon Song, Hyuk Hwan Kim, Seok Hyun Nam, Byoung Dae Ye, Young Keun Lee
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Patent number: 9470839Abstract: Provided are a light source module and a backlight unit. According to an embodiment, the light source module comprises a circuit board, at least one LED chip electrically connected onto the circuit board, a reflective surface on an upper surface of the LED chip configured to reflect light, and a fluorescent surface on at least one side surface of the LED chip configured to emit the light.Type: GrantFiled: October 8, 2014Date of Patent: October 18, 2016Assignee: Samsung Display Co., Ltd.Inventors: Byoung Dae Ye, Young Chun Kim, Hyuk Hwan Kim
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Patent number: 9439266Abstract: A light source device includes a light source module having a light-emitting block, an image analysis part, a duty ratio calculation part, a duty ratio determination part and a signal generation part. The image analysis part extracts representative luminance data of the light-emitting block based on pixel data. The duty ratio calculation part calculates duty ratio data of the light-emitting block based on the representative luminance data. The duty ratio determination part generates determined duty ratio data of the light-emitting block based on the duty ratio data from a first period, and the signal generation part generates a driving signal having a duty ratio corresponding to the determined duty ratio data to drive the light-emitting block.Type: GrantFiled: November 14, 2013Date of Patent: September 6, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyung-Ku Kang, Hyuk-Hwan Kim, Dae-Gwang Jang, Yu-Han Bae, Hyeon-Yong Jang
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Publication number: 20160216432Abstract: A curved display device includes a display panel having a curved shape and including a display area having a curved surface and a backlight assembly providing a light to the display panel. The backlight assembly includes a plurality of light sources, a printed circuit board on which the light sources are mounted, and a light guiding plate. The light guiding plate has a curved shape and guides the light provided from the light sources to the display panel. The light sources are sequentially arranged along the curved direction of the light guiding plate, and a longitudinal direction of at least one of the light sources is different from a longitudinal direction of the other light sources.Type: ApplicationFiled: December 11, 2015Publication date: July 28, 2016Inventors: Donghwan KIM, Young-Min PARK, Hyuk-Hwan KIM, Seokhyun NAM
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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: 9291854Abstract: A backlight assembly includes a light emitting portion, a chromaticity converter and a light guide plate. The light emitting portion generates a first light. The chromaticity converter receives the first light, and converts a chromaticity of the first light to generate a uniform light having a uniform chromaticity. The light guide plate includes an incident surface to which the uniform light is incident, and a light exiting surface guiding the uniform light provided from the incident surface and emitting the uniform light. Accordingly, a display quality of a display apparatus may be enhanced.Type: GrantFiled: August 22, 2012Date of Patent: March 22, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyuk-Hwan Kim, Si-Ki Park, Young-Min Park, Hyun-Jeong Kim
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Publication number: 20150369997Abstract: Provided are a light source module and a backlight unit. According to an embodiment, the light source module comprises a circuit board, at least one LED chip electrically connected onto the circuit board, a reflective surface on an upper surface of the LED chip configured to reflect light, and a fluorescent surface on at least one side surface of the LED chip configured to emit the light.Type: ApplicationFiled: October 8, 2014Publication date: December 24, 2015Inventors: Byoung Dae YE, Young Chun KIM, Hyuk Hwan KIM
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Publication number: 20150261040Abstract: A manufacturing method of a backlight unit includes providing a solder paste on a printed circuit board and forming a solder part in a first area of the printed circuit board, aligning a bank mask on the printed circuit board to align a first opening defined through the bank mask with a second area of the printed circuit board not overlapped with the first area, providing a bank material in the first opening and forming a bank on the printed circuit board in an area corresponding to the second area, separating the bank mask from the printed circuit board including the bank thereon, and connecting the solder part of the printed circuit board and a light emitting unit to each other.Type: ApplicationFiled: January 19, 2015Publication date: September 17, 2015Inventors: Hyun-Jeong KIM, HYUK-HWAN KIM, SEOKHYUN NAM, Si joon SONG
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Publication number: 20150219966Abstract: A light source module includes a printed circuit board including a wiring layer, an insulating coating layer disposed on the wiring layer, and a reflection adjustment pattern disposed on the insulating coating layer and having reflection characteristics which are different from reflection characteristics of the insulating coating layer, a light emitting chip mounted on the printed circuit board, and an optical lens arranged on an upper portion of the light emitting chip and fixed to the printed circuit board.Type: ApplicationFiled: May 21, 2014Publication date: August 6, 2015Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Si Joon SONG, Hyuk Hwan KIM, Hyun Jeong KIM, Seok Hyun NAM, Young Keun LEE
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Publication number: 20150138827Abstract: A method of protecting an LED chip from damage by ESD and EMI when the LED chip is housed in a light-emitting diode(s) housing package (LED package) and the LED package is mounted on a printed circuit board is provided. The method comprises a step of not including an ESD and EMI suppressing Zener diode within the combination of the printed circuit board and the LED package and of providing within the combination of the printed circuit board and the LED package a first conductive member and a spaced apart second conductive member which are electrically connected to the LED chip and which have defined between them at least one insulative ESD and/or EMI suppressing region which breaks down in its insulative properties when subjected to voltages of absolute magnitudes greater than a predetermined threshold voltage.Type: ApplicationFiled: April 25, 2014Publication date: May 21, 2015Applicant: Samsung Display Co., Ltd.Inventors: Si Joon SONG, Hyuk Hwan KIM, Seok Hyun NAM, Byoung Dae YE, Young Keun LEE