Patents by Inventor Nae-won Jang

Nae-won Jang 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).

  • Patent number: 10444424
    Abstract: A display device includes a light source to emit light, a light guide plate on which the light emitted from the light source is incident and which irradiates light through a first and a second surface of the light guide plate, a quantum dot sheet on which the light irradiated through the first surface of the light guide plate is incident and which irradiates blue light, green light and red light, a reflective sheet for reflecting the irradiated light to the light guide plate, and a light-converting material at an edge portion of the light guide plate, the quantum dot sheet and the reflective sheet, for converting the light into a yellow light, green light or red light. The light incident on the quantum dot sheet includes the light emitted from the light source and the yellow light, the green light or the red light.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: October 15, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byoung-Jin Cho, Dae-hee Lee, Kye Hoon Lee, Nae-Won Jang
  • Patent number: 10437103
    Abstract: A display apparatus includes a display panel, LEDs disposed behind the display panel and spaced from the display panel to emit light toward the display panel, a bottom chassis configured to accommodate the LEDs, and a reflective member disposed inside the bottom chassis and configured to reflect a light portion incident thereon toward the display panel. The reflective member includes a reflective bottom portion corresponding to a front surface of the bottom chassis, and reflective inclined portions obliquely formed to face a rear surface of the display panel and having a plurality of holes thereon. The reflective inclined portions include a first region that corresponds to an LED and a second region that is between two neighboring LEDs, and the first region has a higher hole density than the second region, and the first region is closer to the LED than the second region.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: October 8, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byoung Jin Cho, Young Man Ahn, Dae Hee Lee, Nae Won Jang, Hyeong Sik Choi
  • Patent number: 10424691
    Abstract: There is provided a display apparatus and a method of manufacturing the same. The display apparatus includes: a quantum dot unit or a quantum dot sheet capable of improving heat dissipation performance. A wire with high heat transfer rate is provided in the quantum dot unit or the quantum dot sheet, and the wire is connected to the bottom chassis of the display apparatus so as to dissipate heat generated in the quantum dot.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: September 24, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Nae-Won Jang, Jean Hur, Tae Soon Park, Jun-Mo Yoo
  • Patent number: 10393938
    Abstract: According to a display apparatus according to an embodiment of the present invention, it is possible to prevent a quantum dot unit provided in a backlight assembly from being damaged by heat generated from a light source. The display apparatus according to an embodiment of the present invention includes a display panel that displays an image, a light source that provides light from a rear side of the display panel, a light guide plate that is positioned on the rear side of the display panel and guides light emitted from the light source, and a quantum dot unit that is provided to be spaced apart from the light source and converts a wavelength of the light emitted from the light source.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: August 27, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Nae Won Jang, Kye Hoon Lee
  • Patent number: 10393939
    Abstract: A display apparatus includes: a display panel; a light source package configured to supply light; and a light guide plate configured to receive the light supplied by the light source package and guide the light to the display panel. The light source package includes: a light source configured to generate the light; a first reflector disposed around the light source; a light converter disposed between the light source and the light guide plate, the light converter being configured to convert properties of the light directed toward the light guide plate; and a second reflector protruding from the light converter toward the light source, the second reflector being configured to reflect the light generated by the light source toward the first reflector, and to reflect light reflected by the light converter toward the light guide plate.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: August 27, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Wook-Jae Jeon, Young Chol Lee, Nae-Won Jang, Seung Hun Chae, Jun Sung Choi
  • Patent number: 10330861
    Abstract: Disclosed herein are a quantum dot unit having an improved structure for improving color reproducibility, a quantum dot sheet having the same, and a display device having the quantum dot unit or the quantum dot sheet. The display device includes a display panel configured to display an image, a light source provided to emit light to the display panel, a light guide plate provided to guide the light emitted from the light source to the display panel, and a quantum dot unit disposed between the light source and the light guide plate to change a wavelength of the light emitted from the light source and having ductility, wherein the quantum dot unit includes a glass fiber having a hollow portion and a quantum dot accommodated in the hollow portion.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: June 25, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Nae-Won Jang, Young Chol Lee, Byoung-Jin Cho, Seung Hun Chae
  • Publication number: 20190129213
    Abstract: Provided is a display apparatus including a liquid crystal panel and a shutter panel, wherein the shutter panel includes a shutter layer configured to change a polarizing axis of light transmitted through a selected area, a shutter polarizing layer disposed on a front surface of the shutter layer, and configured to transmit light having the polarizing axis changed by the shutter layer, and a quantum rod layer disposed on a rear surface of the shutter layer, and configured to convert a wavelength of light that is incident to the shutter panel, and to transmit light having a polarizing axis of a predetermined direction to the shutter layer. Therefore, the display apparatus may implement a local dimming structure and improve the optical efficiency.
    Type: Application
    Filed: October 25, 2018
    Publication date: May 2, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byoung Jin CHO, Nae Won JANG, Seung Hun CHAE
  • Publication number: 20190113665
    Abstract: A display panel and a display apparatus including the display panel are provided. The display apparatus includes: a display panel; and a backlight unit configured to supply light to the display panel, wherein the display panel includes: a liquid crystal layer; a first polarizing plate disposed between the backlight unit and the liquid crystal layer; and a second polarizing plate facing the first polarizing plate with the liquid crystal layer disposed therebetween, and containing a light absorbing agent for absorbing light of a specific wavelength band, wherein the first polarizing plate includes: a first polarizing layer including a plurality of refracting layers having different refractive indexes; and at least one second polarizing layer disposed on the first polarizing layer.
    Type: Application
    Filed: October 17, 2018
    Publication date: April 18, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Nae-Won JANG, Byoung-Jin CHO, Seung Jun JEONG
  • Publication number: 20190079351
    Abstract: A display apparatus includes a display panel, LEDs disposed behind the display panel and spaced from the display panel to emit light toward the display panel, a bottom chassis configured to accommodate the LEDs, and a reflective member disposed inside the bottom chassis and configured to reflect a light portion incident thereon toward the display panel. The reflective member includes a reflective bottom portion corresponding to a front surface of the bottom chassis, and reflective inclined portions obliquely formed to face a rear surface of the display panel and having a plurality of holes thereon. The reflective inclined portions include a first region that corresponds to an LED and a second region that is between two neighboring LEDs, and the first region has a higher hole density than the second region, and the first region is closer to the LED than the second region.
    Type: Application
    Filed: November 13, 2018
    Publication date: March 14, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byoung Jin CHO, Young Man AHN, Dae Hee LEE, Nae Won JANG, Hyeong Sik CHOI
  • Patent number: 10175532
    Abstract: A display module includes a display panel; a backlight unit which is disposed behind the display panel; a bottom chassis to accommodate the backlight unit; and a reflective sheet which is disposed inside the bottom chassis and configured to reflect a light portion incident thereon toward the display panel. The backlight unit includes LEDs disposed apart from one another in 2D array, and the reflective sheet includes a sheet bottom portion corresponding to a front surface of the bottom chassis, a sheet inclined portion which is obliquely formed to face a rear surface of the display panel, and light adjustment portions which are provided on the sheet inclined portion and configured to adjust the light portion reflected by the sheet inclined portion. Each of the light adjustment portions corresponds to one of the LEDs disposed adjacent to the sheet inclined portion.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: January 8, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byoung Jin Cho, Young Man Ahn, Dae Hee Lee, Nae Won Jang, Hyeong Sik Choi
  • Publication number: 20180356685
    Abstract: A display device includes a display panel and a plurality of light source modules arranged in parallel to a rear surface of the display panel to emit light toward the display panel, and a plurality of light source modules provided to be independently operable. A plurality of light source modules includes a modulator configured to guide light, a light source disposed on a rear surface of the modulator to generate light, a reflective member disposed opposite to the light source on a front surface of the modulator and configured to reflect the generated light to inside or the rear surface of the modulator, and a light conversion member disposed on the rear surface of the modulator and configured to convert the wavelength of light guided by the modulator, the light conversion member being formed in a predetermined pattern shape.
    Type: Application
    Filed: June 7, 2018
    Publication date: December 13, 2018
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Nae-Won JANG, Young Chol LEE, Kyung Soo PARK, Ho Seok LEE
  • Patent number: 10054733
    Abstract: Disclosed herein is a light emitting device package including a light emitting device configured to generate a first light; a body configured to accommodate the light emitting device and comprising a cavity in the body; an optical member configured to divide the cavity into a plurality of cavities including a first cavity and a second cavity; and first phosphor and second phosphor different from the first phosphor accommodated in the first and the second cavities, respectively.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: August 21, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kye Hoon Lee, Dae Kuen Yang, Nae-won Jang
  • Publication number: 20180156966
    Abstract: A display device includes a light source to emit light, a light guide plate on which the light emitted from the light source is incident and which irradiates light through a first and a second surface of the light guide plate, a quantum dot sheet on which the light irradiated through the first surface of the light guide plate is incident and which irradiates blue light, green light and red light, a reflective sheet for reflecting the irradiated light to the light guide plate, and a light-converting material at an edge portion of the light guide plate, the quantum dot sheet and the reflective sheet, for converting the light into a yellow light, green light or red light. The light incident on the quantum dot sheet includes the light emitted from the light source and the yellow light, the green light or the red light.
    Type: Application
    Filed: January 19, 2018
    Publication date: June 7, 2018
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byoung-Jin CHO, Dae-hee LEE, Kye Hoon LEE, Nae-Won JANG
  • Publication number: 20180156959
    Abstract: A display apparatus includes: a display panel; a light source package configured to supply light; and a light guide plate configured to receive the light supplied by the light source package and guide the light to the display panel. The light source package includes: a light source configured to generate the light; a first reflector disposed around the light source; a light converter disposed between the light source and the light guide plate, the light converter being configured to convert properties of the light directed toward the light guide plate; and a second reflector protruding from the light converter toward the light source, the second reflector being configured to reflect the light generated by the light source toward the first reflector, and to reflect light reflected by the light converter toward the light guide plate.
    Type: Application
    Filed: September 21, 2017
    Publication date: June 7, 2018
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Wook-Jae JEON, Young Chol LEE, Nae-Won JANG, Seung Hun CHAE, Jun Sung CHOI
  • Publication number: 20180158983
    Abstract: There is provided a display apparatus and a method of manufacturing the same. The display apparatus includes: a quantum dot unit or a quantum dot sheet capable of improving heat dissipation performance. A wire with high heat transfer rate is provided in the quantum dot unit or the quantum dot sheet, and the wire is connected to the bottom chassis of the display apparatus so as to dissipate heat generated in the quantum dot.
    Type: Application
    Filed: September 21, 2017
    Publication date: June 7, 2018
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Nae-Won JANG, Jean HUR, Tae Soon PARK, Jun-Mo YOO
  • Patent number: 9939680
    Abstract: Provided is a display apparatus includes a display panel, a light source configured to emit light toward the display panel, a light diffusion plate disposed between the display panel and the light source such that light emitted from the light source is diffused and guided to the display panel, and at least one light diffusion layer provided on the light diffusion plate, having a light source corresponding portion corresponding to the light source, and including a plurality of light transmitting portions provided with a higher density at an edge portion of the light source corresponding portion than at a central portion of the light source corresponding portion.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: April 10, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byoung-Jin Cho, Dae-Hee Lee, Yoon Ki Park, Ho Seok Lee, Nae-Won Jang, Han Mi Choi
  • Publication number: 20180095218
    Abstract: Disclosed herein are a quantum dot unit having an improved structure for improving color reproducibility, a quantum dot sheet having the same, and a display device having the quantum dot unit or the quantum dot sheet. The display device includes a display panel configured to display an image, a light source provided to emit light to the display panel, a light guide plate provided to guide the light emitted from the light source to the display panel, and a quantum dot unit disposed between the light source and the light guide plate to change a wavelength of the light emitted from the light source and having ductility, wherein the quantum dot unit includes a glass fiber having a hollow portion and a quantum dot accommodated in the hollow portion.
    Type: Application
    Filed: September 26, 2017
    Publication date: April 5, 2018
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Nae-Won JANG, Young Chol LEE, Byoung-Jin CHO, Seung Hun CHAE
  • Publication number: 20180088413
    Abstract: A display apparatus having enhanced color reproduction, and a display apparatus including a light absorption sheet that absorbs light having a wavelength corresponding to yellow light and/or orange light in the light are provided. The display apparatus includes: a backlight unit; a liquid crystal panel configured to selectively block light emitted from the backlight according to an electric field; and a light absorption sheet disposed on a front side of the liquid crystal panel for absorbing light having a predetermined range of wavelength.
    Type: Application
    Filed: September 14, 2017
    Publication date: March 29, 2018
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Nae-Won JANG, Young Chol LEE, Byoung-Jin CHO, Wook-Jae JEON, Seung Hun CHAE
  • Patent number: 9904000
    Abstract: A display device includes a light source to emit light, a light guide plate on which the light emitted from the light source is incident and which irradiates light through a first and a second surface of the light guide plate, a quantum dot sheet on which the light irradiated through the first surface of the light guide plate is incident and which irradiates blue light, green light and red light, a reflective sheet for reflecting the irradiated light to the light guide plate, and a light-converting material at an edge portion of the light guide plate, the quantum dot sheet and the reflective sheet, for converting the light into a yellow light, green light or red light. The light incident on the quantum dot sheet includes the light emitted from the light source and the yellow light, the green light or the red light.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: February 27, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byoung-jin Cho, Dae-hee Lee, Kye Hoon Lee, Nae-won Jang
  • Publication number: 20180011376
    Abstract: A display module includes a display panel; a backlight unit which is disposed behind the display panel; a bottom chassis to accommodate the backlight unit; and a reflective sheet which is disposed inside the bottom chassis and configured to reflect a light portion incident thereon toward the display panel. The backlight unit includes LEDs disposed apart from one another in 2D array, and the reflective sheet includes a sheet bottom portion corresponding to a front surface of the bottom chassis, a sheet inclined portion which is obliquely formed to face a rear surface of the display panel, and light adjustment portions which are provided on the sheet inclined portion and configured to adjust the light portion reflected by the sheet inclined portion. Each of the light adjustment portions corresponds to one of the LEDs disposed adjacent to the sheet inclined portion.
    Type: Application
    Filed: September 1, 2017
    Publication date: January 11, 2018
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byoung Jin CHO, Young Man AHN, Dae Hee LEE, Nae Won JANG, Hyeong Sik CHOI