Patents by Inventor Won Taek Moon
Won Taek Moon 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: 10018861Abstract: A display device is disclosed which includes: a liquid crystal panel; an optical member configured to apply light to the liquid crystal panel; and a wrapping film configured to wrap an upper surface, at least one side surface and at least a part of a lower surface of the optical member.Type: GrantFiled: May 11, 2015Date of Patent: July 10, 2018Assignee: LG DISPLAY CO., LTD.Inventors: Jin Ryun Kim, Won Taek Moon, Sang Hyun Lee, Su Jin Chang, Seoung Mo Kang
-
Patent number: 9620688Abstract: A display device includes a micro-lens film which has a high fill-factor and a high luminance ratio and prevents generation of moiré. The display device includes a display panel configured to display an image, a plurality of Light Emitting Diodes (LEDs) configured to generate light to supply light to the display panel, a light guide panel configured to guide light to the display panel, and a micro-lens film including a base film that concentrates and diffuses light emitted from the light guide panel, a lens unit at an upper surface of the base film, and a back-coating film at a lower surface of the base film. The lens unit includes unit block groups randomly arranged at the upper surface of the base film, each unit block group containing randomly arranged fixed-shape lenses having different sizes, and micro-beads randomly formed on surfaces of the fixed-shape lenses.Type: GrantFiled: December 20, 2013Date of Patent: April 11, 2017Assignee: LG Display Co., Ltd.Inventors: Sang-Hyun Lee, Won-Taek Moon, Sun-Woong Kim, Bo-Ra Kim, Sang-Dae Han, Su-Jin Chang
-
Publication number: 20150378207Abstract: A display device is disclosed which includes: a liquid crystal panel; an optical member configured to apply light to the liquid crystal panel; and a wrapping film configured to wrap an upper surface, at least one side surface and at least a part of a lower surface of the optical member.Type: ApplicationFiled: May 11, 2015Publication date: December 31, 2015Inventors: Jin Ryun KIM, Won Taek MOON, Sang Hyun LEE, Su Jin CHANG, Seoung Mo KANG
-
Patent number: 9188732Abstract: A display device and a method of fabricating a reflective sheet for the same are provided. The display device includes: a display panel to display an image, a plurality of light emitting diodes (LEDs) to: generate and supply light to the display panel, a light guide plate to guide the light to the display panel, and a reflective sheet to reflect light toward a cover bottom below the LEDs toward the light guide plate, the reflective sheet including: a reflective layer, first and second skin layers respectively on upper and lower portions of the reflective layer, the first and second skin layers each including an embossing surface including a plurality of first reflective patterns to: prevent adhesion between the reflective layer and the light guide plate, and increase efficiency of light, and the reflective layer including a plurality of second reflective patterns, each including a filler in an air layer.Type: GrantFiled: December 4, 2013Date of Patent: November 17, 2015Assignee: LG Display Co., Ltd.Inventors: Sang-Hyun Lee, Byoung-Ku Kim, Won-Taek Moon, Bo-Ra Kim, Su-Jin Chang
-
Patent number: 8908124Abstract: A light guide plate for a backlight unit of a liquid crystal display device includes one side surface where light from a first light source is incident; the other side surface opposite to the one side surface; a front surface combining the one and the other one side surfaces; and a rear surface including a plurality of light guide patterns, each of the plurality of light guide patterns including a protruding portion and a groove portion, wherein one of the protruding portion and the groove portion is positioned at a center of the other one of the protruding portion and the groove portion.Type: GrantFiled: July 28, 2010Date of Patent: December 9, 2014Assignee: LG Display Co., Ltd.Inventors: Sang-Hyun Lee, Byoung-Ku Kim, Won Taek Moon, Young-Ik Hwang
-
Patent number: 8902378Abstract: In a liquid crystal display (LCD) device, an LED PCB with the reflection layer formed on surface thereof is installed at an upper side of the LED array and a reflection plate extends such that it sufficiently covers the lower portion of the LED array to thus make light emitted from the light source incident to its maximum level, thus coping with the reduction in the quantity of light resulting from making the LCD device thinner. The LCD device includes: a liquid crystal panel; an LED array supplying light to the liquid crystal panel; a light guide plate installed in a direction in which the LED outputs light, and guiding light; a reflection plate formed between the LED array and a lower portion of a lower cover; and an LED PCB attached to an upper portion of the lower cover at an upper side of the LED array and having a reflection layer formed at a side facing the light guide plate.Type: GrantFiled: July 9, 2010Date of Patent: December 2, 2014Assignee: LG Display Co., Ltd.Inventors: Sang-Hyun Lee, Won-Taek Moon, Yong-Ik Hwang
-
Publication number: 20140183571Abstract: A display device includes a micro-lens film which has a high fill-factor and a high luminance ratio and prevents generation of moiré. The display device includes a display panel configured to display an image, a plurality of Light Emitting Diodes (LEDs) configured to generate light to supply light to the display panel, a light guide panel configured to guide light to the display panel, and a micro-lens film including a base film that concentrates and diffuses light emitted from the light guide panel, a lens unit at an upper surface of the base film, and a back-coating film at a lower surface of the base film. The lens unit includes unit block groups randomly arranged at the upper surface of the base film, each unit block group containing randomly arranged fixed-shape lenses having different sizes, and micro-beads randomly formed on surfaces of the fixed-shape lenses.Type: ApplicationFiled: December 20, 2013Publication date: July 3, 2014Applicant: LG DISPLAY CO., LTD.Inventors: Sang-Hyun Lee, Won-Taek Moon, Sun-Woong Kim, Bo-Ra Kim, Sang-Dae Han, Su-Jin Chang
-
Publication number: 20140169036Abstract: A display device and a method of fabricating a reflective sheet for the same are provided. The display device includes: a display panel to display an image, a plurality of light emitting diodes (LEDs) to: generate and supply light to the display panel, a light guide plate to guide the light to the display panel, and a reflective sheet to reflect light toward a cover bottom below the LEDs toward the light guide plate, the reflective sheet including: a reflective layer, first and second skin layers respectively on upper and lower portions of the reflective layer, the first and second skin layers each including an embossing surface including a plurality of first reflective patterns to: prevent adhesion between the reflective layer and the light guide plate, and increase efficiency of light, and the reflective layer including a plurality of second reflective patterns, each including a filler in an air layer.Type: ApplicationFiled: December 4, 2013Publication date: June 19, 2014Applicant: LG DISPLAY CO., LTD.Inventors: Sang-Hyun Lee, Byoung-Ku Kim, Won-Taek Moon, Bo-Ra Kim, Su-Jin Chang
-
Patent number: 8746905Abstract: A method of fabricating a reflecting sheet includes: providing a base sheet including a reflecting layer, an upper surface layer over the reflecting layer and a lower surface layer under the reflecting layer, the reflecting layer including a fine foam; dividing the base sheet into upper and lower division sheets; and forming a reinforcing layer on each of the upper and lower division sheets to constitute the reflecting sheet.Type: GrantFiled: August 30, 2011Date of Patent: June 10, 2014Assignee: LG Display Co., Ltd.Inventors: Su-Jin Chang, Won-Taek Moon, Sung-Hun Kim, Sang-Hyun Lee, Sang-Dae Han
-
Publication number: 20120050902Abstract: A method of fabricating a reflecting sheet includes: providing a base sheet including a reflecting layer, an upper surface layer over the reflecting layer and a lower surface layer under the reflecting layer, the reflecting layer including a fine foam; dividing the base sheet into upper and lower division sheets; and forming a reinforcing layer on each of the upper and lower division sheets to constitute the reflecting sheet.Type: ApplicationFiled: August 30, 2011Publication date: March 1, 2012Inventors: Su-Jin CHANG, Won-Taek Moon, Sung-Hun Kim, Sang-Hyun Lee, Sang-Dae Han
-
Publication number: 20110025950Abstract: A light guide plate for a backlight unit of a liquid crystal display device includes one side surface where light from a first light source is incident; the other side surface opposite to the one side surface; a front surface combining the one and the other one side surfaces; and a rear surface including a plurality of light guide patterns, each of the plurality of light guide patterns including a protruding portion and a groove portion, wherein one of the protruding portion and the groove portion is positioned at a center of the other one of the protruding portion and the groove portion.Type: ApplicationFiled: July 28, 2010Publication date: February 3, 2011Inventors: Sang-Hyun LEE, Byoung-Ku Kim, Won Taek Moon, Young-Ik Hwang
-
Publication number: 20110007242Abstract: In a liquid crystal display (LCD) device, an LED PCB with the reflection layer formed on surface thereof is installed at an upper side of the LED array and a reflection plate extends such that it sufficiently covers the lower portion of the LED array to thus make light emitted from the light source incident to its maximum level, thus coping with the reduction in the quantity of light resulting from making the LCD device thinner. The LCD device includes: a liquid crystal panel; an LED array supplying light to the liquid crystal panel; a light guide plate installed in a direction in which the LED outputs light, and guiding light; a reflection plate formed between the LED array and a lower portion of a lower cover; and an LED PCB attached to an upper portion of the lower cover at an upper side of the LED array and having a reflection layer formed at a side facing the light guide plate.Type: ApplicationFiled: July 9, 2010Publication date: January 13, 2011Inventors: Sang-Hyun Lee, Won-Taek Moon, Yong-Ik Hwang
-
Patent number: 7859614Abstract: Disclosed is a liquid crystal display (LCD) device in which low power LEDs with a dual lens structure re configured for application in a backlight device to increase the optical efficiency at low power, thus enhancing the brightness, such LCD device including: a lower cover; PCBs (Printed Circuit Boards) disposed on the lower cover for receiving power from the exterior; a main body mounted on the PCBs; R, G and B LED (Light Emitting Diode) devices disposed on the main body for emitting light; a first lens having a first curvature and mounted on the main body and housing the R, G and B LED devices; a second lens covering the outside of the first lens and having an inner curved surface with a second curvature having a varying radius of curvature, and an outer curved surface with a third curvature, wherein the second curvature of the inner curved surface is gradually increased from an edge portion toward a central portion; and a liquid crystal panel spaced apart from the second lens by a certain interval and toType: GrantFiled: May 8, 2008Date of Patent: December 28, 2010Assignee: LG Display Co., Ltd.Inventors: Won-Taek Moon, Jun-Ho Bae, Jae-Jin Kim
-
Patent number: 7824090Abstract: An optical sheet and a backlight unit using the same are disclosed, in which deviation of a viewing angle is minimized to improve picture quality. The optical sheet includes a diffusion sheet provided with a plurality of diffusion patterns diffusing incident light in at least two directions to allow the incident light to have different strengths.Type: GrantFiled: November 25, 2009Date of Patent: November 2, 2010Assignee: LG Display Co., Ltd.Inventors: Man Hoan Lee, Won Taek Moon, Jae Hyun Park
-
Publication number: 20100067255Abstract: An optical sheet and a backlight unit using the same are disclosed, in which deviation of a viewing angle is minimized to improve picture quality. The optical sheet includes a diffusion sheet provided with a plurality of diffusion patterns diffusing incident light in at least two directions to allow the incident light to have different strengths.Type: ApplicationFiled: November 25, 2009Publication date: March 18, 2010Inventors: Man Hoan Lee, Won Taek Moon, Jae Hyun Park
-
Patent number: 7635215Abstract: An optical sheet and a backlight unit using the same are disclosed, in which deviation of a viewing angle is minimized to improve picture quality. The optical sheet includes a diffusion sheet provided with a plurality of diffusion patterns diffusing incident light in at least two directions to allow the incident light to have different strengths.Type: GrantFiled: June 29, 2006Date of Patent: December 22, 2009Assignee: LG Display Co., Ltd.Inventors: Man Hoan Lee, Won Taek Moon, Jae Hyun Park
-
Patent number: 7628526Abstract: A back light unit is disclosed, which improves condensing efficiency of light and viewing angle characteristics. The back light unit includes at least one lamp generating light, a light guide plate emitting light across a surface thereof using the light generated from the lamp, a diffusion sheet arranged above the light guide plate to diffuse the light passing through the light guide plate, a first condensing sheet condensing the light from the diffusion sheet using a plurality of first elliptical condensing patterns arranged on the diffusion sheet in a first direction, and a second condensing sheet further condensing the light from the first condensing sheet using a plurality of second elliptical condensing patterns arranged on the first condensing sheet in a second direction crossing the first direction.Type: GrantFiled: December 21, 2005Date of Patent: December 8, 2009Assignee: LG Display Co., Ltd.Inventors: Man Hoan Lee, Ji Su Yoon, Sung Keun Lee, Won Taek Moon, Jun Kyu Paik, Young Hun Jeong
-
Publication number: 20080278655Abstract: Disclosed is a liquid crystal display (LCD) device in which low power LEDs with a dual lens structure re configured for application in a backlight device to increase the optical efficiency at low power, thus enhancing the brightness, such LCD device including: a lower cover; PCBs (Printed Circuit Boards) disposed on the lower cover for receiving power from the exterior; a main body mounted on the PCBs; R, G and B LED (Light Emitting Diode) devices disposed on the main body for emitting light; a first lens having a first curvature and mounted on the main body and housing the R, G and B LED devices; a second lens covering the outside of the first lens and having an inner curved surface with a second curvature having a varying radius of curvature, and an outer curved surface with a third curvature, wherein the second curvature of the inner curved surface is gradually increased from an edge portion toward a central portion; and a liquid crystal panel spaced apart from the second lens by a certain interval and toType: ApplicationFiled: May 8, 2008Publication date: November 13, 2008Applicant: LG. PHILIPS LCD CO., LTD.Inventors: Won-Taek Moon, Jun-Ho Bae, Jae-Jin Kim
-
Patent number: 7407317Abstract: A prism sheet capable of achieving an enhancement in light efficiency and viewing angle characteristics and a backlight unit using the prism sheet are disclosed. The prism sheet includes: a condensing film which transmits light incident to the condensing film; a plurality of prism crests on the condensing film having apexes; and a plurality of reflection patterns formed on the condensing film such that each of the reflection patterns faces a boundary of adjacent prism crests associated with the reflection pattern to reflect light incident onto the reflection patterns.Type: GrantFiled: December 22, 2005Date of Patent: August 5, 2008Assignee: LG Display Co., Ltd.Inventors: Man Hoan Lee, Jae Kyung Kang, Ji Su Yoon, Sung Keun Lee, Won Taek Moon