Patents by Inventor Young-chol Lee
Young-chol Lee 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: 20240139934Abstract: The inventive concept provides a teaching method for teaching a transfer position of a transfer robot. The teaching method includes: searching for an object on which a target object to be transferred by the transfer robot is placed, based on a 3D position information acquired by a first sensor; and acquiring coordinates of a second direction and coordinates of a third direction of the object based on a data acquired from a second sensor which is a different type from the first sensor.Type: ApplicationFiled: March 8, 2023Publication date: May 2, 2024Applicant: SEMES CO., LTD.Inventors: Jong Min Lee, Kwang Sup Kim, Myeong Jun Lim, Young Ho Park, Yeon Chul Song, Sang Hyun Son, Jun Ho Oh, Ji Hoon Yoo, Joong Chol Shin
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Patent number: 11042063Abstract: A display device includes a backlight unit configured to emit light, a display panel disposed in front of the backlight unit, and an optical sheet disposed between the backlight unit and the display panel. The optical sheet may include a first prism sheet including a plurality of first prisms arranged in a first direction, a second prism sheet including a plurality of second prisms arranged in a second direction intersecting the first direction, and disposed in front of the first prism sheet; and a third prism sheet including a plurality of third prisms arranged in the first direction, and disposed in front of the second prism sheet.Type: GrantFiled: December 19, 2019Date of Patent: June 22, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sei Young Kang, Seung Jun Jeong, Min Woo Kang, Nam Seok Roh, Kwan Sik Min, Young Chol Lee, Jae Jeong Lee
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Patent number: 10942391Abstract: There is provided a display apparatus with an improved viewing angle. The display apparatus includes a display panel configured to receive light from a light source module, wherein the display panel includes: a liquid crystal panel; a first polarizing plate positioned on a rear side of the liquid crystal panel and a second polarizing plate positioned on a front side of the liquid crystal panel; and an optical layer positioned on a front surface of the second polarizing plate, wherein the optical layer includes: a resin layer having a first refractive index, and including an accommodating groove in which a light adjusting portion is disposed, the resin layer further including a light refractive pattern protruding toward a rear direction of the display panel; and an adhesive layer having a second refractive index different from the first refractive index, and bonding the resin layer with the second polarizing plate.Type: GrantFiled: October 22, 2019Date of Patent: March 9, 2021Assignee: Samsung Electronics Co., Ltd.Inventors: Hyung Jin Lee, Wook Jae Jeon, Young Chol Lee, Ju Hyun Lee, Tae Young Lee, Seung Hun Chae, Jun Sung Choi
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Patent number: 10928675Abstract: Disclosed is a display apparatus including a display panel; and a light source assembly including: a plurality of first light sources disposed in a first region to supply first light toward the display panel; a light guide plate including: incident surface configured to receive second light; and an exit surface facing the display panel and configured to transmit the second light received from the incident surface of the light guide plate to the display panel; and a plurality of second light sources disposed on a periphery of the first region to supply the second light to the incident surface of the light guide plate.Type: GrantFiled: September 20, 2019Date of Patent: February 23, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jong Bin Kim, Byoung Jin Cho, Young Chol Lee, Ho Seok Lee, Nae Won Jang, Suk Ju Choi
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Patent number: 10928666Abstract: Provided is a display device with enhanced uniformity of brightness. The display device includes a display panel, and a backlight unit configured to supply light to the display panel, wherein the display panel includes a liquid crystal panel with first and second surfaces opposite to each other, a first polarizing plate arranged on the first surface of the liquid crystal panel, a second polarizing plate arranged on the second surface of the liquid crystal panel, a light absorbing layer arranged on the second polarizing plate to absorb a portion of the light supplied from the backlight unit, and a light absorbing material included in the light absorbing layer to absorb light of particular wavelengths.Type: GrantFiled: October 19, 2018Date of Patent: February 23, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Young Chol Lee, Wook-Jae Jeon, Il Yong Jung
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Patent number: 10890800Abstract: A display apparatus includes a light emitting module to emit light; a first prism sheet provided on the light emitting module; a reflective polarizing sheet provided on the first prism sheet to transmit first polarized light of the light exiting the first prism sheet and reflect second polarized light of the light exiting the first prism sheet; a second prism sheet provided on the reflective polarizing sheet; and a liquid crystal panel provided on the second prism sheet, the liquid crystal panel including a liquid crystal cell, a first polarizing sheet provided on a first side the liquid crystal cell, and a second polarizing sheet provided between the second prism sheet and a second side of the liquid crystal cell, wherein the second prism sheet is configured to control a transmission angle at which the light exiting the reflective polarizing sheet is transmitted by the liquid crystal cell.Type: GrantFiled: October 3, 2019Date of Patent: January 12, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Young Chol Lee, Wook Jae Jeon, Nam Seok Roh, Kwan Sik Min
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Patent number: 10818209Abstract: A display apparatus includes a display panel receiving light from a light source. The display panel includes a liquid crystal panel, first and second polarizers respectively disposed on front and rear sides of the liquid crystal panel, and an optical layer disposed on a front surface of the second polarizer. The optical layer includes a first resin layer having light absorption portions for absorbing a portion of incident light, a second resin layer disposed on a front surface of the first resin layer, the second resin layer having a higher refractive index than the first resin layer, the second resin layer having light diffusion portions for diffusing light not absorbed by the light absorption portions.Type: GrantFiled: October 9, 2018Date of Patent: October 27, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Young Chol Lee, Wook-Jae Jeon, Tae Ik Kim, Il Yong Jung, Byoung-Jin Cho, Jun Sung Choi
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Patent number: 10775655Abstract: A display apparatus includes a bottom chassis, a display panel provided in front of the bottom chassis, and a cover film configured to cover the display panel and being fixable to the bottom chassis. With this configuration, a bezel may be minimized (e.g., reduced in size) or eliminated, and the display efficiency may be improved.Type: GrantFiled: June 28, 2017Date of Patent: September 15, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: Jun-Mo Yoo, Seung Hun Chae, Han Mi Choi, Young Chol Lee, Nae-Won Jang, Jong Pil Jeon, Yong Dok Cha, Jean Hur
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Publication number: 20200201119Abstract: A display device includes a backlight unit configured to emit light, a display panel disposed in front of the backlight unit, and an optical sheet disposed between the backlight unit and the display panel. The optical sheet may include a first prism sheet including a plurality of first prisms arranged in a first direction, a second prism sheet including a plurality of second prisms arranged in a second direction intersecting the first direction, and disposed in front of the first prism sheet; and a third prism sheet including a plurality of third prisms arranged in the first direction, and disposed in front of the second prism sheet.Type: ApplicationFiled: December 19, 2019Publication date: June 25, 2020Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sei Young KANG, Seung Jun JEONG, Min Woo KANG, Nam Seok ROH, Kwan Sik MIN, Young Chol LEE, Jae Jeong LEE
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Publication number: 20200133062Abstract: There is provided a display apparatus with an improved viewing angle. The display apparatus includes a display panel configured to receive light from a light source module, wherein the display panel includes: a liquid crystal panel; a first polarizing plate positioned on a rear side of the liquid crystal panel and a second polarizing plate positioned on a front side of the liquid crystal panel; and an optical layer positioned on a front surface of the second polarizing plate, wherein the optical layer includes: a resin layer having a first refractive index, and including an accommodating groove in which a light adjusting portion is disposed, the resin layer further including a light refractive pattern protruding toward a rear direction of the display panel; and an adhesive layer having a second refractive index different from the first refractive index, and bonding the resin layer with the second polarizing plate.Type: ApplicationFiled: October 22, 2019Publication date: April 30, 2020Inventors: Hyung Jin LEE, Wook Jae JEON, Young Chol LEE, Ju Hyun LEE, Tae Young LEE, Seung Hun CHAE, Jun Sung CHOI
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Publication number: 20200110304Abstract: A display apparatus includes a light emitting module to emit light; a first prism sheet provided on the light emitting module; a reflective polarizing sheet provided on the first prism sheet to transmit first polarized light of the light exiting the first prism sheet and reflect second polarized light of the light exiting the first prism sheet; a second prism sheet provided on the reflective polarizing sheet; and a liquid crystal panel provided on the second prism sheet, the liquid crystal panel including a liquid crystal cell, a first polarizing sheet provided on a first side the liquid crystal cell, and a second polarizing sheet provided between the second prism sheet and a second side of the liquid crystal cell, wherein the second prism sheet is configured to control a transmission angle at which the light exiting the reflective polarizing sheet is transmitted by the liquid crystal cell.Type: ApplicationFiled: October 3, 2019Publication date: April 9, 2020Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Young Chol LEE, Wook Jae JEON, Nam Seok ROH, Kwan Sik MIN
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Publication number: 20200096823Abstract: Disclosed is a display apparatus including a display panel; and a light source assembly including: a plurality of first light sources disposed in a first region to supply first light toward the display panel; a light guide plate including: incident surface configured to receive second light; and an exit surface facing the display panel and configured to transmit the second light received from the incident surface of the light guide plate to the display panel; and a plurality of second light sources disposed on a periphery of the first region to supply the second light to the incident surface of the light guide plate.Type: ApplicationFiled: September 20, 2019Publication date: March 26, 2020Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jong Bin KIM, Byoung Jin CHO, Young Chol LEE, Ho Seok LEE, Nae Won JANG, Suk Ju CHOI
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Patent number: 10509262Abstract: 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: GrantFiled: June 7, 2018Date of Patent: December 17, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Nae-Won Jang, Young Chol Lee, Kyung Soo Park, Ho Seok Lee
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Patent number: 10488703Abstract: 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: GrantFiled: September 14, 2017Date of Patent: November 26, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Nae-Won Jang, Young Chol Lee, Byoung-Jin Cho, Wook-Jae Jeon, Seung Hun Chae
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Patent number: 10401679Abstract: The display apparatus reflects the light emitted from the light source to a display panel using a reflective member without a member such as a light guide plate. The reflective member is configured so that the light emitted from the light source can be provided uniformly and introduced uniformly to the display panel. Even if a board with the light source disposed at a side of the reflective member, the light emitted from the light source can be radiated substantially uniformly to the entire area of the display panel by the reflective surface of the reflective member.Type: GrantFiled: March 9, 2017Date of Patent: September 3, 2019Assignee: Samsung Electronics Co., Ltd.Inventors: Yong Dok Cha, Jong Bin Kim, Jeong Shan Na, Young Chol Lee, Jae Hak Cho, Jean Hur
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Patent number: 10393939Abstract: 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: GrantFiled: September 21, 2017Date of Patent: August 27, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Wook-Jae Jeon, Young Chol Lee, Nae-Won Jang, Seung Hun Chae, Jun Sung Choi
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Patent number: 10379399Abstract: A display device including a backlight unit; and an image forming unit configured to transmit or block light emitted from the backlight unit to create an image, wherein the backlight unit includes a light source, a reflector sheet configured to absorb light having a predetermined wavelength range among light emitted from the light source, and to reflect non-absorbed light, and an optical sheet configured to absorb light having the predetermined wavelength range among the light emitted from the light source, and to transmit non-absorbed light.Type: GrantFiled: July 14, 2016Date of Patent: August 13, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sung Ho Choi, Yong-Hun Kwon, Tae-Hyeong Kim, Chun Soon Park, Young Chol Lee, Jong Cheol Lee, Jae Hak Cho, Seung Hun Chae, Hyung Jin Ha
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Patent number: 10330861Abstract: 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: GrantFiled: September 26, 2017Date of Patent: June 25, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Nae-Won Jang, Young Chol Lee, Byoung-Jin Cho, Seung Hun Chae
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Patent number: 10330836Abstract: A display apparatus may include a back light unit including a light source and a selective light absorption sheet configured to absorb light of a predetermined wavelength range among light emitted from the light source and an image forming unit configured to transmit or block light emitted from the back light unit to form an image. The selective light absorption sheet may include a selective light absorption film configured to absorb light of a predetermined wavelength range among light emitted from the light source, at least one light blocking film configured to absorb at least one of UV light and IR light, and at least one barrier film configured to block at least one of oxygen and moisture.Type: GrantFiled: December 8, 2016Date of Patent: June 25, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chun Soon Park, Young Chol Lee, Tae-Hyeong Kim, Seung Hun Chae, Sung Ho Choi, Hyung Jin Ha
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Publication number: 20190121174Abstract: Provided is a display device with enhanced uniformity of brightness. The display device includes a display panel, and a backlight unit configured to supply light to the display panel, wherein the display panel includes a liquid crystal panel with first and second surfaces opposite to each other, a first polarizing plate arranged on the first surface of the liquid crystal panel, a second polarizing plate arranged on the second surface of the liquid crystal panel, a light absorbing layer arranged on the second polarizing plate to absorb a portion of the light supplied from the backlight unit, and a light absorbing material included in the light absorbing layer to absorb light of particular wavelengths.Type: ApplicationFiled: October 19, 2018Publication date: April 25, 2019Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Young Chol LEE, Wook-Jae JEON, Il Yong JUNG