Patents by Inventor Yeun-Tae Kim
Yeun-Tae 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: 9581866Abstract: A manufacturing method of a display device includes: forming a thin film transistor on a substrate; forming a pixel electrode connected to the thin film transistor in at least one of the plurality of pixel areas on the substrate; forming a sacrificial layer on the pixel electrode; forming an opening in the sacrificial layer by removing at least a part of the sacrificial layer; forming a roof layer on the sacrificial layer and forming a support member in the opening; forming an injection hole by patterning the roof layer to expose at least a part of the sacrificial layer; forming a microcavity between the pixel electrode and the roof layer by removing the sacrificial layer; forming a liquid crystal layer in the microcavity by injecting a liquid crystal material through the injection hole; and forming an encapsulation layer on the roof layer to seal the microcavity.Type: GrantFiled: February 29, 2016Date of Patent: February 28, 2017Assignee: Samsung Display Co., Ltd.Inventors: Soo Jung Lee, Yeun Tae Kim, Hee-Keun Lee, Sung Jun Kim, Sung Woo Cho
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Patent number: 9581862Abstract: A liquid crystal display according to the present inventive concept includes: a substrate; a gate line and a data line crossing each other formed on the substrate; a thin film transistor connected to the gate line and the data line; a pixel electrode connected to the thin film transistor and having a slit at a center; a liquid crystal layer filling a plurality of microcavities positioned on the pixel electrode; a common electrode positioned on the liquid crystal layer; and a roof layer formed on the common electrode and having an oblique portion formed to be inclined at both outer sides of the microcavities.Type: GrantFiled: March 17, 2015Date of Patent: February 28, 2017Assignee: Samsung Display Co., Ltd.Inventors: Kwang Soo Bae, Yeun Tae Kim, Hae Ju Yun, Yong Seok Kim, Dae Ho Song
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Patent number: 9570480Abstract: A liquid crystal display includes a thin film transistor on a substrate, a pixel electrode connected to a first terminal of the thin film transistor, a roof layer above the pixel electrode, a microcavity between the pixel electrode and the roof layer, the microcavity including a liquid crystal injection hole, a partition wall in the microcavity, the partition wall partitioning the microcavity into a first area and a second area, and a liquid crystal layer with liquid crystal molecules in the microcavity, the liquid crystal molecules in the first area being a different type than the liquid crystal molecules in the second area.Type: GrantFiled: April 18, 2014Date of Patent: February 14, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hee-Keun Lee, Yeun Tae Kim, Dae Ho Song, Hae Ju Yun, Soo Jung Lee
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Patent number: 9500913Abstract: A display device includes a substrate including a pixel area, a thin-film transistor formed on the substrate, a pixel electrode connected to the thin-film transistor, a common electrode formed on the pixel electrode, a space formed between the pixel electrode and the common electrode, and a roof layer formed on the common electrode. The common electrode and the roof layer include a protrusion protruding from at least one of an upper edge and a lower edge of the pixel area.Type: GrantFiled: June 8, 2015Date of Patent: November 22, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hee Keun Lee, Yeun Tae Kim, Nam Seok Roh, Hae Ju Yun
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Patent number: 9496295Abstract: A method of manufacturing a liquid crystal display includes: forming a sacrificial layer by stacking a non-photosensitive resin; initiating formation of an etch stop layer on the sacrificial layer; forming a photoresist pattern; completing the etch stop layer using the photoresist pattern; ashing the photoresist pattern and the sacrificial layer by using the completed etch stop layer as a mask; forming a microcavity by removing the sacrificial layer; and forming a liquid crystal layer in the microcavity. The horizontal area occupied by the sacrificial layer is reduced by forming the common electrode or the etch stop layer at an upper side, thereby increasing the aperture ratio. Further, the vertical electric field is generated without distortion by horizontally forming the common electrode on the sacrificial layer and forming no common electrode on the sidewall thereof.Type: GrantFiled: September 18, 2014Date of Patent: November 15, 2016Assignee: Samsung Display Co., Ltd.Inventors: Koichi Sugitani, Hoon Kang, Yeun Tae Kim, Kyung Tae Chae
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Patent number: 9488874Abstract: Provided is a liquid crystal display. The liquid crystal display comprises a substrate having a plurality of pixel areas; a first electrode on the substrate in each of the pixel areas; a fine space layer positioned on the first electrode; a roof layer defining the fine space layer between the substrate and the roof layer and including a liquid crystal injection port; a second electrode on a bottom surface of the roof layer; and a supporter on the liquid crystal injection port and divided into a plurality of portions to define a filling space.Type: GrantFiled: October 24, 2014Date of Patent: November 8, 2016Assignee: Samsung Display Co., Ltd.Inventors: Kwang Soo Bae, Sung Woo Cho, Yeun Tae Kim, Sung Hwan Won
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Patent number: 9482917Abstract: The present invention relates to a display device and a manufacturing method thereof, wherein a spoilage layer generated in a manufacturing process is removed, and a manufacturing method of a display device according to an exemplary embodiment of the present invention includes: forming a thin film transistor on a substrate including a plurality of pixel areas; forming a pixel electrode connected to the thin film transistor in the pixel area; forming a sacrificial layer on the pixel electrode; forming a barrier layer on the sacrificial layer; forming a common electrode on the barrier layer; forming a roof layer on the common electrode; patterning the barrier layer, the common electrode, and the roof layer to exposed a portion of the sacrificial layer thereby forming an injection hole; removing the sacrificial layer to form a microcavity for a plurality of pixel areas; removing the barrier layer.Type: GrantFiled: December 29, 2015Date of Patent: November 1, 2016Assignee: Samsung Display Co., Ltd.Inventors: Hong Sick Park, Seon-Il Kim, Min Ho Moon, Hyang-Shik Kong, Yeun Tae Kim, Chang Oh Jeong
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Publication number: 20160178944Abstract: A manufacturing method of a display device includes: forming a thin film transistor on a substrate; forming a pixel electrode connected to the thin film transistor in at least one of the plurality of pixel areas on the substrate; forming a sacrificial layer on the pixel electrode; forming an opening in the sacrificial layer by removing at least a part of the sacrificial layer; forming a roof layer on the sacrificial layer and forming a support member in the opening; forming an injection hole by patterning the roof layer to expose at least a part of the sacrificial layer; forming a microcavity between the pixel electrode and the roof layer by removing the sacrificial layer; forming a liquid crystal layer in the microcavity by injecting a liquid crystal material through the injection hole; and forming an encapsulation layer on the roof layer to seal the microcavity.Type: ApplicationFiled: February 29, 2016Publication date: June 23, 2016Inventors: Soo Jung Lee, Yeun Tae Kim, Hee-Keun Lee, Sung Jun Kim, Sung Woo Cho
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Publication number: 20160147106Abstract: A display device includes: a display panel; a backlight unit formed under the display panel; and a side chassis formed to be bent over the display panel and under the backlight unit while enclosing an edge side of the display panel and the backlight unit, wherein an adhesive is filled inside the side chassis and in a space between the display panel and the backlight unit. The adhesive is filled inside the chassis formed at the edge of the panel such that damage to the display device may be prevented and durability may be improved.Type: ApplicationFiled: April 30, 2015Publication date: May 26, 2016Inventors: Yeun Tae KIM, Min Su KIM, Soo Jung LEE
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Patent number: 9336702Abstract: A display apparatus includes an image data comparator which receives first, second and third color image data, extracts first, second and third image data from the first, second and third color image date by comparing gray scale values of the first, second and third color image date such that each of grayscale values of the second and third image data is greater than or equal to a gray scale value of the first image data, and compares the gray scale value of the first image data with a predetermined gray scale value, a driving circuit which generates a gray scale signal based on a result of the comparison and generates first and second color signals based on the first, second or third image data, and a pixel including a first sub-pixel which receives the gray scale signal, second and third sub-pixels which receive the first and second color signals, respectively.Type: GrantFiled: April 6, 2012Date of Patent: May 10, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sangil Kim, Jang-Kyum Kim, Myung-Eun Kim, Namseok Roh, Gilhwan Yeo, Yeun Tae Kim, KyoungHo Lim
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Publication number: 20160116792Abstract: A liquid crystal display includes: an insulation substrate; a microcavity layer disposed on the insulation substrate and having a reversed taper side wall; a pixel electrode disposed in the microcavity layer on the insulation substrate; a liquid crystal layer disposed in the microcavity layer; and a common electrode which covers the liquid crystal layer.Type: ApplicationFiled: November 10, 2015Publication date: April 28, 2016Inventors: Kyung Tae CHAE, Sung Hwan WON, Yeun Tae KIM, Won Tae KIM, Seon Uk LEE
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Publication number: 20160109745Abstract: The present invention relates to a display device and a manufacturing method thereof, wherein a spoilage layer generated in a manufacturing process is removed, and a manufacturing method of a display device according to an exemplary embodiment of the present invention includes: forming a thin film transistor on a substrate including a plurality of pixel areas; forming a pixel electrode connected to the thin film transistor in the pixel area; forming a sacrificial layer on the pixel electrode; forming a barrier layer on the sacrificial layer; forming a common electrode on the barrier layer; forming a roof layer on the common electrode; patterning the barrier layer, the common electrode, and the roof layer to exposed a portion of the sacrificial layer thereby forming an injection hole; removing the sacrificial layer to form a microcavity for a plurality of pixel areas; removing the barrier layer.Type: ApplicationFiled: December 29, 2015Publication date: April 21, 2016Inventors: Hong Sick PARK, Seon-Il Kim, Min Ho Moon, Hyang-Shik KONG, Yeun Tae KIM, Chang Oh JEONG
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Publication number: 20160103377Abstract: A liquid crystal display according to the present inventive concept includes: a substrate; a gate line and a data line crossing each other formed on the substrate; a thin film transistor connected to the gate line and the data line; a pixel electrode connected to the thin film transistor and having a slit at a center; a liquid crystal layer filling a plurality of microcavities positioned on the pixel electrode; a common electrode positioned on the liquid crystal layer; and a roof layer formed on the common electrode and having an oblique portion formed to be inclined at both outer sides of the microcavities.Type: ApplicationFiled: March 17, 2015Publication date: April 14, 2016Inventors: Kwang Soo BAE, Yeun Tae KIM, Hae Ju YUN, Yong Seok KIM, Dae Ho SONG
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Patent number: 9274382Abstract: A display device includes: a substrate including a plurality of pixel areas; a thin film transistor formed on the substrate; a pixel electrode connected to the thin film transistor and formed in at least one of the plurality of pixel areas; a roof layer formed on the pixel electrode to be spaced apart from the pixel electrode by a microcavity therebetween; an injection hole formed on the roof layer so as to expose a part of the microcavity; a liquid crystal layer configured to fill the microcavity; at least one support member adjacent to the injection hole and formed in a column shape in the microcavity; and an encapsulation layer formed on the roof layer so as to cover the injection hole to seal the microcavity.Type: GrantFiled: October 23, 2013Date of Patent: March 1, 2016Assignee: Samsung Display Co., Ltd.Inventors: Soo Jung Lee, Yeun Tae Kim, Hee-Keun Lee, Sung Jun Kim, Sung Woo Cho
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Publication number: 20160055809Abstract: A display device includes a substrate and pixels arranged on the substrate in a matrix form. The substrate includes a display area in which the pixels are arranged and a non-display area disposed adjacent to a side of the display area. Each pixel includes a cover layer that extends in a row direction that includes a sidewall portion connected to the substrate and a cover portion spaced apart from the substrate and connected to the sidewall portion to define a tunnel-shaped cavity on the substrate. A width of the sidewall portion between adjacent pixels is less than a width of the sidewall portion disposed at an outermost position, and the cover layer seals one side of the tunnel-shaped cavity in the pixels arranged in a first row and a last row.Type: ApplicationFiled: November 3, 2015Publication date: February 25, 2016Inventors: YEUN TAE KIM, HEE-KEUN LEE, JAEKEUN LIM
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Patent number: 9261736Abstract: The substrate of a liquid crystal display has a non-square rectangular shape and is bent such that the longer edges of the rectangular shape are nonlinear while the shorter edges are linear. Liquid crystal containerizing micro-cavities of the display are organized to be elongated in the extending direction of the nonlinear longer edges of the substrate while gate lines and liquid crystal injection holes forming areas are formed extending in the extending direction of the linear shorter edges of the substrate. Concentration of mechanical stresses may be reduced due to this configuration.Type: GrantFiled: August 20, 2014Date of Patent: February 16, 2016Assignee: Samsung Display Co., Ltd.Inventors: Yeun Tae Kim, Dae Ho Song, Soo Jung Lee, Hee-Keun Lee, Ji Yeon Choi
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Patent number: 9244302Abstract: The present invention relates to a display device and a method of manufacturing the display device. The display device according to an exemplary embodiment of the present invention includes a substrate. A pixel electrode is formed on the substrate. A roof layer is formed on the pixel electrode. A first micro-cavity and a second micro-cavity are disposed between the pixel electrode and the roof layer. A liquid crystal fills the first and second micro-cavities. The first and second micro-cavities are connected to each other by a path. The path penetrates the roof layer.Type: GrantFiled: September 25, 2013Date of Patent: January 26, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Tae Woo Lim, Hee-Keun Lee, Hoon Kang, Sung Ju Kim, Yeun Tae Kim, Yu Deok Seo, Koichi Sugitani, Chae Kyung Tae, Cha-Dong Kim
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Patent number: 9235074Abstract: The present invention relates to a display device and a manufacturing method thereof, wherein a spoilage layer generated in a manufacturing process is removed, and a manufacturing method of a display device according to an exemplary embodiment of the present invention includes: forming a thin film transistor on a substrate including a plurality of pixel areas; forming a pixel electrode connected to the thin film transistor in the pixel area; forming a sacrificial layer on the pixel electrode; forming a barrier layer on the sacrificial layer; forming a common electrode on the barrier layer; forming a roof layer on the common electrode; patterning the barrier layer, the common electrode, and the roof layer to exposed a portion of the sacrificial layer thereby forming an injection hole; removing the sacrificial layer to form a microcavity for a plurality of pixel areas; removing the barrier layer.Type: GrantFiled: August 7, 2013Date of Patent: January 12, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hong Sick Park, Seon-II Kim, Min Ho Moon, Hyang-Shik Kong, Yeun Tae Kim, Chang Oh Jeong
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Publication number: 20160004112Abstract: Provided is a liquid crystal display. The liquid crystal display comprises a substrate having a plurality of pixel areas; a first electrode on the substrate in each of the pixel areas; a fine space layer positioned on the first electrode; a roof layer defining the fine space layer between the substrate and the roof layer and including a liquid crystal injection port; a second electrode on a bottom surface of the roof layer; and a supporter on the liquid crystal injection port and divided into a plurality of portions to define a filling space.Type: ApplicationFiled: October 24, 2014Publication date: January 7, 2016Inventors: Kwang Soo BAE, Sung Woo CHO, Yeun Tae KIM, Sung Hwan WON
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Patent number: 9229257Abstract: A liquid crystal display includes: an insulation substrate; a microcavity layer disposed on the insulation substrate and having a reversed taper side wall; a pixel electrode disposed in the microcavity layer on the insulation substrate; a liquid crystal layer disposed in the microcavity layer; and a common electrode which covers the liquid crystal layer.Type: GrantFiled: July 2, 2013Date of Patent: January 5, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kyung Tae Chae, Sung Hwan Won, Yeun Tae Kim, Won Tae Kim, Seon Uk Lee