Patents by Inventor Gwan Young Na
Gwan Young Na 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: 10234717Abstract: A method of attaching a polarizer includes preparing a first stage on which a display panel is disposed and a second stage on which a first polarizer is disposed, measuring a shape of a curl of the first polarizer; determining an attachment direction of the first polarizer with respect to the display panel based on the measured curl shape of the first polarizer and attaching the first polarizer to a first surface of the display panel by rotating at least one of the first stage and the second stage based on the determined attachment direction.Type: GrantFiled: August 1, 2016Date of Patent: March 19, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Gwan Young Na, Sang Jae Kim, Jung Hun Lee, Hyo Sung Hong
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Cholesteric liquid crystal reflective polarizing plate and liquid crystal display including the same
Patent number: 10216040Abstract: A cholesteric liquid crystal reflective polarizing plate includes a cholesteric liquid crystal layer and a ?/4 compensation layer disposed on the cholesteric liquid crystal layer. The cholesteric liquid crystal layer includes a first left-handed circularly polarizing portion which extends in a first direction that include a left-handed cholesteric liquid crystal material, and a first right-handed circularly polarizing portion which extends in the first direction adjacent to first left-handed circularly polarizing portion and that includes a right-handed cholesteric liquid crystal material. The ?/4 compensation layer includes a first ?/4 compensation pattern which extends in the first direction and overlapping the first left-handed circularly polarizing portion, and a second ?/4 compensation pattern which extends in the first direction adjacent to the first ?/4 compensation pattern and overlaps the first right-handed circularly polarizing portion.Type: GrantFiled: May 29, 2015Date of Patent: February 26, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ji Hye Kim, Kwang Hyun Kim, Sang Jae Kim, Teck Soo Kim, Gwan Young Na, Hyoung Joo Lee, Seon Ah Cho, Hyo Sung Hong -
Patent number: 9971192Abstract: A display panel includes a first substrate, a second substrate facing the first substrate, a liquid crystal layer interposed between the first substrate and the second substrate, a first transparent conductive pattern disposed on a surface of the first substrate and including a plurality of openings, and a first polarizing member combined with the first transparent conductive pattern. The display panel may reduce bending due to contraction of the first polarizing member including a drawn polarizing layer. Furthermore, static electricity generated in the second substrate may be discharged thereby improving reliability of a display device including the display panel.Type: GrantFiled: October 24, 2014Date of Patent: May 15, 2018Assignee: Samsung Display Co., Ltd.Inventors: Hyoung-Joo Lee, Kwang-Hyun Kim, Sang-Jae Kim, Gwan-Young Na, Seon-Ah Cho
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Patent number: 9964798Abstract: A polarizer includes a first laminated structure having a first layer with a first refractive index and a second layer with a second refractive index, wherein the first and second refractive indices are different from each other. A buffer layer is disposed on the first laminated structure. A second laminated structure in the polarizer has a third layer with a third refractive index and a fourth layer with a fourth refractive index, wherein the third and fourth refractive indices are different from each other.Type: GrantFiled: August 3, 2015Date of Patent: May 8, 2018Assignee: Samsung Display Co., Ltd.Inventors: Boo-Kan Ki, Gwan Young Na, Hee Wook Do, Kwang-Hyun Kim, Dae Won Kim, Teck Soo Kim, Seung Beom Park, Duck Jong Suh, Na Young Shin, Sang-Gu Lee, Ji-Hoon Kim
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Publication number: 20170212383Abstract: A method of attaching a polarizer includes preparing a first stage on which a display panel is disposed and a second stage on which a first polarizer is disposed, measuring a shape of a curl of the first polarizer; determining an attachment direction of the first polarizer with respect to the display panel based on the measured curl shape of the first polarizer and attaching the first polarizer to a first surface of the display panel by rotating at least one of the first stage and the second stage based on the determined attachment direction.Type: ApplicationFiled: August 1, 2016Publication date: July 27, 2017Inventors: Gwan Young NA, Sang Jae KIM, Jung Hun LEE, Hyo Sung HONG
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Patent number: 9625762Abstract: Disclosed is a liquid crystal display device, including: first and second substrates, which are spaced apart from each other by a predetermined interval while facing each other; a reflective polarizing plate disposed under the first substrate, and including a first refractive index layer and a second refractive index layer, which have different refractive indexes and are repeatedly stacked; first and second compensation layers sequentially stacked on the second substrate, and an upper polarizing plate including a polarizing layer formed on the second compensation layer; and a liquid crystal layer formed between the first and second substrates.Type: GrantFiled: May 18, 2015Date of Patent: April 18, 2017Assignee: Samsung Display Co., Ltd.Inventors: Gwan-Young Na, Kwang-Hyun Kim, Sang-Jae Kim, Ji-Hye Kim, Teck-Soo Kim, Hyoung-Joo Lee, Seon-Ah Cho
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CHOLESTERIC LIQUID CRYSTAL REFLECTIVE POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME
Publication number: 20160223730Abstract: A cholesteric liquid crystal reflective polarizing plate includes a cholesteric liquid crystal layer and a ?/4 compensation layer disposed on the cholesteric liquid crystal layer. The cholesteric liquid crystal layer includes a first left-handed circularly polarizing portion which extends in a first direction that include a left-handed cholesteric liquid crystal material, and a first right-handed circularly polarizing portion which extends in the first direction adjacent to first left-handed circularly polarizing portion and that includes a right-handed cholesteric liquid crystal material. The ?/4 compensation layer includes a first ?/4 compensation pattern which extends in the first direction and overlapping the first left-handed circularly polarizing portion, and a second ?/4 compensation pattern which extends in the first direction adjacent to the first ?/4 compensation pattern and overlaps the first right-handed circularly polarizing portion.Type: ApplicationFiled: May 29, 2015Publication date: August 4, 2016Inventors: JI HYE KIM, Kwang Hyun Kim, Sang Jae Kim, Teck Soo Kim, Gwan Young Na, Hyoung Joo Lee, Seon Ah Cho, Hyo Sung Hong -
Publication number: 20160161786Abstract: Provided is a liquid crystal display panel including a thin-film transistor (TFT) array substrate and a first phase difference film. A liquid crystal layer is disposed between the TFT array substrate and the first phase difference film. A second phase difference film is disposed on the first phase difference film. A phase retardation value of the first phase difference film in a thickness direction is in a range of from about 100 nm to about 300 nm.Type: ApplicationFiled: June 26, 2015Publication date: June 9, 2016Inventors: Hyo Sung HONG, Ji Hoon Kim, Teck Soo Kim, Kwang Hyun Kim, Sang Jae Kim, Ji Hye Kim, Gwan Young Na, Hyoung Joo Lee, Seon Ah Cho
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Patent number: 9261729Abstract: A display panel including a substrate on which a switching element is disposed, a first electrode connected to the switching element, an image displaying layer disposed under the first electrode, a second electrode disposed under the image displaying layer and insulated from the first electrode, a protective layer disposed under the second electrode and surrounding a lower surface and side surfaces of the image displaying layer, and an upper polarizing plate disposed on the substrate, and making contact with the substrate.Type: GrantFiled: May 13, 2015Date of Patent: February 16, 2016Assignee: Samsung Display Co., Ltd.Inventors: Min-Su Kim, Seung-Beom Park, Kwang-Hyun Kim, Ji-Hoon Kim, Gwan-Young Na, Beong-hun Beon, Na-Young Shin
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Publication number: 20160041426Abstract: Disclosed is a liquid crystal display device, including: first and second substrates, which are spaced apart from each other by a predetermined interval while facing each other; a reflective polarizing plate disposed under the first substrate, and including a first refractive index layer and a second refractive index layer, which have different refractive indexes and are repeatedly stacked; first and second compensation layers sequentially stacked on the second substrate, and an upper polarizing plate including a polarizing layer formed on the second compensation layer; and a liquid crystal layer formed between the first and second substrates.Type: ApplicationFiled: May 18, 2015Publication date: February 11, 2016Inventors: Gwan-Young NA, Kwang-Hyun Kim, Sang-Jae Kim, Ji-Hye Kim, Teck-Soo Kim, Hyoung-Joo Lee, Seon-Ah Cho
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Patent number: 9207488Abstract: A liquid crystal display panel includes a first substrate, a second substrate facing the first substrate, a liquid crystal layer disposed between the first substrate and the second substrate, a first polarizing element disposed under the first substrate, the first polarizing element including a first polarizing layer and a second polarizing layer having different refractive indexes, the first polarizing layer having been stretched in a direction substantially parallel to a transmitting axis of the first polarizing element, and a second polarizing element disposed on the second substrate, the second polarizing element having been stretched in a direction substantially perpendicular to a transmitting axis of the second polarizing element.Type: GrantFiled: May 20, 2014Date of Patent: December 8, 2015Assignee: Samsung Display Co., Ltd.Inventors: Seon-Ah Cho, Sang-Jae Kim, Gwan-Young Na, Kwang-Hyun Kim, Hyoung-Joo Lee
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Publication number: 20150338703Abstract: A polarizer includes a first laminated structure having a first layer with a first refractive index and a second layer with a second refractive index, wherein the first and second refractive indices are different from each other. A buffer layer is disposed on the first laminated structure. A second laminated structure in the polarizer has a third layer with a third refractive index and a fourth layer with a fourth refractive index, wherein the third and fourth refractive indices are different from each other.Type: ApplicationFiled: August 3, 2015Publication date: November 26, 2015Inventors: Boo-Kan KI, Gwan Young NA, HeeWook DO, Kwang-Hyun KIM, Dae Won KIM, Teck Soo KIM, Seung Beom PARK, Duck Jong SUH, Na Young SHIN, Sang-Gu LEE, Ji-Hoon KIM
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Publication number: 20150293403Abstract: A display panel includes a first substrate, a second substrate facing the first substrate, a liquid crystal layer interposed between the first substrate and the second substrate, a first transparent conductive pattern disposed on a surface of the first substrate and including a plurality of openings, and a first polarizing member combined with the first transparent conductive pattern. The display panel may reduce bending due to contraction of the first polarizing member including a drawn polarizing layer. Furthermore, static electricity generated in the second substrate may be discharged thereby improving reliability of a display device including the display panel.Type: ApplicationFiled: October 24, 2014Publication date: October 15, 2015Inventors: Hyoung-Joo LEE, Kwang-Hyun KIM, Sang-Jae KIM, Gwan-Young NA, Seon-Ah CHO
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Publication number: 20150241735Abstract: A display panel including a substrate on which a switching element is disposed, a first electrode connected to the switching element, an image displaying layer disposed under the first electrode, a second electrode disposed under the image displaying layer and insulated from the first electrode, a protective layer disposed under the second electrode and surrounding a lower surface and side surfaces of the image displaying layer, and an upper polarizing plate disposed on the substrate, and making contact with the substrate.Type: ApplicationFiled: May 13, 2015Publication date: August 27, 2015Inventors: Min-Su KIM, Seung-Beom PARK, Kwang-Hyun KIM, Ji-Hoon KIM, Gwan-Young NA, Beong-hun BEON, Na-Young SHIN
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Patent number: 9097933Abstract: A polarizer includes a reflective polarizer main body and an Rth compensation layer. The reflective polarizer main body includes a repetitively laminated structure, the repetitively laminated structure including two layers of different refractive indices repetitively disposed on one another. The Rth phase compensation layer is disposed at one side of the reflective polarizer main body. The Rth phase compensation layer is configured to compensate for a phase difference in an Rth direction.Type: GrantFiled: March 18, 2013Date of Patent: August 4, 2015Assignee: Samsung Display Co., Ltd.Inventors: Boo-Kan Ki, Gwan Young Na, Hee Wook Do, Kwang-Hyun Kim, Dae Won Kim, Teck Soo Kim, Seung Beom Park, Duck Jong Suh, Na Young Shin, Sang-Gu Lee, Ji-Hoon Kim
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Patent number: 9057910Abstract: A display panel including a substrate on which a switching element is disposed, a first electrode connected to the switching element, an image displaying layer disposed under the first electrode, a second electrode disposed under the image displaying layer and insulated from the first electrode, a protective layer disposed under the second electrode and surrounding a lower surface and side surfaces of the image displaying layer, and an upper polarizing plate disposed on the substrate, and making contact with the substrate.Type: GrantFiled: January 4, 2013Date of Patent: June 16, 2015Assignee: Samsung Display Co., Ltd.Inventors: Min-Su Kim, Seung-Beom Park, Kwang-Hyun Kim, Ji-Hoon Kim, Gwan-Young Na, Beong-hun Beon, Na-Young Shin
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Publication number: 20150036082Abstract: A liquid crystal display panel includes a first substrate, a second substrate facing the first substrate, a liquid crystal layer disposed between the first substrate and the second substrate, a first polarizing element disposed under the first substrate, the first polarizing element including a first polarizing layer and a second polarizing layer having different refractive indexes, the first polarizing layer having been stretched in a direction substantially parallel to a transmitting axis of the first polarizing element, and a second polarizing element disposed on the second substrate, the second polarizing element having been stretched in a direction substantially perpendicular to a transmitting axis of the second polarizing element.Type: ApplicationFiled: May 20, 2014Publication date: February 5, 2015Applicant: Samsung Display Co., Ltd.Inventors: Seon-Ah CHO, Sang-Jae KIM, Gwan-Young NA, Kwang-Hyun KIM, Hyoung-Joo LEE
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Publication number: 20130329169Abstract: A display panel including a substrate on which a switching element is disposed, a first electrode connected to the switching element, an image displaying layer disposed under the first electrode, a second electrode disposed under the image displaying layer and insulated from the first electrode, a protective layer disposed under the second electrode and surrounding a lower surface and side surfaces of the image displaying layer, and an upper polarizing plate disposed on the substrate, and making contact with the substrate.Type: ApplicationFiled: January 4, 2013Publication date: December 12, 2013Applicant: Samsung Display Co., Ltd.Inventors: Min-Su KIM, Seung-Beom Park, Kwang-Hyun Kim, Ji-Hoon Kim, Gwan-Young Na, Beong-hun Beon, Na-Young Shin
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Patent number: 8553163Abstract: A display apparatus used for creating 3D images has a display panel and a phase-delaying layer disposed on the display panel. The phase-delaying layer has first and second light-changing patterns that are self-aligned to at least one of pixels and a black matrix of the display panel. The self-aligned structure is formed by selectively passing curing light (e.g., UV light) through the display panel to cure curable liquid crystal films while the films are respectively aligned by aligning layers having different alignments.Type: GrantFiled: September 22, 2011Date of Patent: October 8, 2013Assignee: Samsung Display Co., Ltd.Inventors: Sang-Jae Kim, Seung-Boem Park, Seung-Hee Lee, Kwang-Hyun Kim, Ji-Hoon Kim, Tae-Ho Kim, Beong-Hun Beon, Dae-Won Kim, Gwan-Young Na
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Patent number: 8542223Abstract: A display device includes a display panel, a polarization film, and a wave plate. Below the wave plate and the polarization film there is provided a plurality of optical sensors disposed within the display panel. The display panel includes first and second substrates facing each other and a plurality of pixels configured to display an image. The optical sensors are configured to sense light in one or more predetermined light bands. The wave plate is configured to rotate polarization of first light that has passed upwardly through the polarization film such that the combination of upward and downward (reflected) passage of the light is rotated by about 90 degrees. The so-rotated light is blocked from passing down through the polarization film; advantageously, the so-rotated light is prevented from interfering with the optical sensors.Type: GrantFiled: November 7, 2011Date of Patent: September 24, 2013Assignee: Samsung Display Co., Ltd.Inventors: Sang-Jae Kim, Seungbeom Park, Hee Wook Do, Kwang-Hyun Kim, Daewon Kim, Gwan Young Na