Patents by Inventor Tae Woo Lim

Tae Woo Lim 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).

  • Publication number: 20160195757
    Abstract: A liquid crystal display is presented. The display includes: a substrate having an upper surface and a lower surface; a lower polarizing plate positioned on the lower surface of the substrate; a thin film transistor positioned on the upper surface of the substrate; a pixel electrode connected to the thin film transistor; a roof layer covering a plurality of microcavities formed on the pixel electrode and including an organic material; a liquid crystal layer interposed in the microcavities; and a upper polarizing plate positioned on an upper surface of the liquid crystal layer, in which the lower polarizing plate has a thickness that is larger than a thickness of the upper polarizing plate.
    Type: Application
    Filed: November 3, 2015
    Publication date: July 7, 2016
    Inventors: Tae Woo LIM, Pil Sook KWON, Yong Seok KIM
  • Publication number: 20160170198
    Abstract: An electrowetting display device includes first and second barrier layers which cover first and second electrodes. The electrowetting display device includes a first base substrate which faces a second base substrate, the first electrode on the first base substrate, the first barrier layer which covers the first electrode, the second electrode on the second base substrate, the second barrier layer which covers the second electrode, a barrier wall between the first base substrate and the second base substrate, and an electrowetting layer between the first base substrate and the second base substrate. The barrier wall defines a pixel area corresponding to the first electrode, and the electrowetting layer is in the pixel area. The electrowetting layer includes a polar fluid and a non-polar fluid which are separated from each other.
    Type: Application
    Filed: January 21, 2016
    Publication date: June 16, 2016
    Inventors: Tae Woo LIM, Keunkyu SONG, Jihoon YANG, Tae Hyung HWANG
  • Patent number: 9366912
    Abstract: A liquid crystal display device includes a substrate, a cover layer which defines a tunnel-shaped cavity on the substrate, a support part which extends from the cover layer and corresponds to an edge of the tunnel-shaped cavity, a liquid crystal layer in the tunnel-shaped cavity, first and second electrode which apply an electric field to the liquid crystal layer, and a sealant layer which seals the tunnel-shaped cavity.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: June 14, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Tae Woo Lim, Yu Deok Seo, Sunghwan Won, Kyungtae Chae
  • Publication number: 20160146979
    Abstract: Embodiments of the present invention provide a curved display device including: a display panel; and a protection pattern coupled to the display panel, wherein the protection pattern includes a plurality of first patterns and second patterns connecting adjacent first patterns, and the second patterns have arcuate shapes when the display panel is flat. According to embodiments of the present invention, the panel is prevented from being bent beyond a threshold curvature by the protection pattern, thereby preventing damage to the panel.
    Type: Application
    Filed: November 25, 2015
    Publication date: May 26, 2016
    Inventor: Tae Woo LIM
  • Publication number: 20160124261
    Abstract: A manufacturing method of a liquid crystal display includes: providing a pixel electrode on an insulation substrate; providing a sacrificial layer on the pixel electrode; providing a common electrode on the sacrificial layer; providing a photoresist layer on the common electrode; exposing a portion of the photoresist layer, common electrode and the sacrificial layer with light; developing the portion of the photoresist layer exposed with the light; etching a layer between the photoresist layer and the sacrificial layer using the developed photoresist layer as a mask to expose the portion of the sacrificial layer exposed with the light; removing the portion of the sacrificial layer exposed with the light; providing a roof layer on the insulation substrate and etching the roof layer to form a liquid crystal injection hole therein; and removing the sacrificial layer exposed through the liquid crystal injection hole to form a microcavity.
    Type: Application
    Filed: January 8, 2016
    Publication date: May 5, 2016
    Inventors: Tae Woo LIM, Kyung Tae CHAE, Sung Hwan WON, Seon Uk LEE, Jun Heui LEE
  • Patent number: 9323090
    Abstract: A display device may include a substrate and a first roof layer portion that is formed of a roof layer material and overlaps the substrate in a direction, the direction is perpendicular to a surface of the substrate. A lateral surface of the first roof layer portion is disposed in a plane. The display device may further a second roof layer portion formed of the roof layer material and separated from the first roof layer portion. The display device may further a common electrode portion disposed between the first roof layer portion and the substrate in the direction. A lateral surface of the common electrode portion is disposed in the plane or is spaced from the lateral surface of the first roof layer portion in a second direction parallel to the surface of the substrate. The display device may further a pixel electrode disposed between the first common electrode portion and the substrate.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: April 26, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dae Ho Lee, Won Tae Kim, Sung Hwan Won, You Young Jin, Kyung Tae Chae, Pil Sook Kwon, Yong Seok Kim, Han Joon Yoo, Seon Uk Lee, Woo Jae Lee, Tae Woo Lim
  • Patent number: 9323110
    Abstract: A display device configured to control an aggregation position of an alignment layer and a manufacturing method thereof are disclosed. The device includes a substrate including pixel areas; a thin film transistor formed on the substrate; a pixel electrode connected to the thin film transistor and formed on the pixel area; a roof layer formed above the pixel electrode and separated from the pixel electrode by a micro-cavity; a first injection hole formed in the roof layer and extending to a first edge and/or a second edge of the micro-cavity; a second injection hole formed in the roof layer and extending to a left edge and a right edge of the micro-cavity; a liquid crystal layer in the micro-cavity; and an encapsulation layer formed on the roof layer to cover the first injection hole and the second injection hole.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: April 26, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seon Uk Lee, Tae Woo Lim, Sun Hwa Lee
  • Patent number: 9268164
    Abstract: A manufacturing method of a liquid crystal display includes: providing a pixel electrode on an insulation substrate; providing a sacrificial layer on the pixel electrode; providing a common electrode on the sacrificial layer; providing a photoresist layer on the common electrode; exposing a portion of the photoresist layer, common electrode and the sacrificial layer with light; developing the portion of the photoresist layer exposed with the light; etching a layer between the photoresist layer and the sacrificial layer using the developed photoresist layer as a mask to expose the portion of the sacrificial layer exposed with the light; removing the portion of the sacrificial layer exposed with the light; providing a roof layer on the insulation substrate and etching the roof layer to form a liquid crystal injection hole therein; and removing the sacrificial layer exposed through the liquid crystal injection hole to form a microcavity.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: February 23, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Tae Woo Lim, Kyung Tae Chae, Sung Hwan Won, Seon Uk Lee, Jun Heui Lee
  • Patent number: 9250483
    Abstract: A display device includes a substrate, a cover layer, liquid crystal, electrodes, and a sealant layer. The cover layer is disposed on the substrate and defines at least a portion of a tunnel-shaped cavity. The liquid crystal is disposed in the tunnel-shaped cavity. The electrodes are disposed on the substrate and are configured to apply an electric field to the liquid crystal. The sealant layer is disposed on the substrate and is configured to seal the tunnel-shaped cavity. The cover layer includes a first insulating layer including a concave-convex surface.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: February 2, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong Seok Kim, Tae Woo Lim, Jong Seong Kim, WooJae Lee
  • Patent number: 9244302
    Abstract: 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: Grant
    Filed: September 25, 2013
    Date of Patent: January 26, 2016
    Assignee: 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
  • Patent number: 9244267
    Abstract: An electrowetting display device includes first and second barrier layers which cover first and second electrodes. The electrowetting display device includes a first base substrate which faces a second base substrate, the first electrode on the first base substrate, the first barrier layer which covers the first electrode, the second electrode on the second base substrate, the second barrier layer which covers the second electrode, a barrier wall between the first base substrate and the second base substrate, and an electrowetting layer between the first base substrate and the second base substrate. The barrier wall defines a pixel area corresponding to the first electrode, and the electrowetting layer is in the pixel area. The electrowetting layer includes a polar fluid and a non-polar fluid which are separated from each other.
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: January 26, 2016
    Assignee: Amazon Technologies, Inc.
    Inventors: Tae Woo Lim, Keunkyu Song, Jihoon Yang, Tae Hyung Hwang
  • Publication number: 20160004108
    Abstract: Provided are a liquid crystal display and a method for fabricating the same. The liquid crystal display comprises a substrate having a plurality of pixel areas; a first electrode formed on the substrate in the unit of a pixel area; a fine space layer positioned on the first electrode; a partition formed between the adjacent fine space layers to partition the plurality of pixel areas; a roof layer formed on the fine space layer and the partition to define the fine space layer between the substrate and the partition; and a second electrode formed on a bottom surface of the roof layer, wherein the second electrode comes in contact with an upper surface of the partition.
    Type: Application
    Filed: October 7, 2014
    Publication date: January 7, 2016
    Inventors: Kwang Soo BAE, Sang Il PARK, Sung Hwan WON, Woo Jae LEE, Tae Woo LIM
  • Publication number: 20150355483
    Abstract: The present system and method relate to a display device that has a constant curvature in a curved surface. A display device according to an exemplary embodiment of the present system and method includes: a bendable substrate; a thin film transistor formed on the substrate; a pixel electrode connected to the thin film transistor electrode; a roof layer disposed on the substrate and separated from the pixel electrode by a first microcavity formed in between; a liquid crystal layer disposed in the first microcavity; and an encapsulation layer formed on the roof layer and sealing the first microcavity, wherein the roof layer includes a partition formed between of the first microcavity and a second microcavity adjacent to the first microcavity, and a shape of the partition differs according to a position along a length of the substrate where the partition is disposed.
    Type: Application
    Filed: October 15, 2014
    Publication date: December 10, 2015
    Inventors: Tae Woo LIM, Yu Deok SEO
  • Publication number: 20150331263
    Abstract: A liquid crystal display according to an exemplary embodiment includes: a substrate; a thin film transistor disposed on the substrate; a pixel electrode connected with the thin film transistor; a roof layer provided facing the pixel electrode; and a capping layer disposed on the roof layer, wherein a plurality of microcavities are between the pixel electrode and the roof layer, each microcavity includes a liquid crystal material, and the roof layer is formed of only at least one inorganic layer.
    Type: Application
    Filed: October 2, 2014
    Publication date: November 19, 2015
    Inventors: Ji Seong YANG, Tae Woo LIM, Kyung Tae CHAE
  • Publication number: 20150301377
    Abstract: A display device is provided. A substrate includes a thin film transistor. A pixel electrode is connected to the thin film transistor. A common electrode is formed on the pixel electrode. A microcavity including liquid crystal molecules is interposed between the pixel electrode and the common electrode. A roof layer is formed on the common electrode. The roof layer includes at least one protrusion. A support member is formed under the at least one protrusion and in a column shape. The support member is surrounded by the liquid crystal molecules. An overcoat is formed on the roof layer and a side of the microcavity.
    Type: Application
    Filed: October 28, 2014
    Publication date: October 22, 2015
    Inventors: Sun Hwa LEE, Kwang-Chul JUNG, Tae Woo LIM
  • Publication number: 20150234227
    Abstract: A liquid crystal display includes: a substrate; a thin film transistor; a pixel electrode; an insulating layer; a plurality of microcavities; and a partition. The thin film transistor is disposed on the substrate. The pixel electrode is connected to the thin film transistor. The insulating layer is disposed to face the pixel electrode. The microcavities are between the pixel electrode and the insulating layer, wherein the microcavities include a liquid crystal material. The partition is between the microcavities, wherein the partition has a bar shape and is disposed on the insulating layer.
    Type: Application
    Filed: August 11, 2014
    Publication date: August 20, 2015
    Inventors: Seok-Joon HONG, Seon Uk LEE, Tae Woo LIM
  • Publication number: 20150234214
    Abstract: A liquid crystal display includes: a substrate; a thin film transistor; a pixel electrode; a roof layer; a liquid crystal layer; and a plurality of partitions. The thin film transistor is disposed on the substrate. The pixel electrode is connected to the thin film transistor. The roof layer is disposed to face the pixel electrode. The liquid crystal layer is formed by a plurality of microcavities between the pixel electrode and the roof layer, wherein the microcavities include a liquid crystal material. The partitions are between the microcavities adjacent to each other, wherein the partitions may include an organic material and are arranged side by side to one another.
    Type: Application
    Filed: January 22, 2015
    Publication date: August 20, 2015
    Inventors: Seok-Joon HONG, Ji Seong YANG, Tae Woo LIM, Seon Uk LEE, Kyung Tae CHAE
  • Patent number: 9019458
    Abstract: A display device includes: a substrate, on which pixel areas arranged substantially in a matrix form having pixel rows and pixel columns are defined; a thin film transistor disposed on the substrate; a pixel electrode disposed in the pixel areas and connected to the thin film transistor; common electrodes disposed on the pixel electrode and spaced apart from the pixel electrode, where a microcavity is defined between the pixel electrode and the common electrodes; a roof layer disposed on the common electrodes, where a liquid crystal injection hole is defined through the common electrodes and the roof layer and exposes the microcavity; a liquid crystal layer disposed in the microcavity; and an encapsulation layer disposed on the roof layer, where the encapsulation layer covers the liquid crystal injection hole and seals the microcavity, where the common electrodes in the pixel rows are connected to each other.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: April 28, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Won Tae Kim, Yong Seok Kim, Sung Hwan Won, Seon Uk Lee, Kyung Tae Chae, Pil Sook Kwon, Dae Ho Lee, Woo Jae Lee, Tae Woo Lim
  • Publication number: 20150055074
    Abstract: A display device may include a substrate and a first roof layer portion that is formed of a roof layer material and overlaps the substrate in a direction, the direction is perpendicular to a surface of the substrate. A lateral surface of the first roof layer portion is disposed in a plane. The display device may further a second roof layer portion formed of the roof layer material and separated from the first roof layer portion. The display device may further a common electrode portion disposed between the first roof layer portion and the substrate in the direction. A lateral surface of the common electrode portion is disposed in the plane or is spaced from the lateral surface of the first roof layer portion in a second direction parallel to the surface of the substrate. The display device may further a pixel electrode disposed between the first common electrode portion and the substrate.
    Type: Application
    Filed: March 7, 2014
    Publication date: February 26, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Dae Ho LEE, Won Tae KIM, Sung Hwan WON, You Young JIN, Kyung Tae CHAE, Pil Sook KWON, Yong Seok KIM, Han Joon YOO, Seon Uk LEE, Woo Jae LEE, Tae Woo LIM
  • Publication number: 20150015825
    Abstract: A display device includes a substrate including a plurality of pixel areas, a thin film transistor positioned on the substrate, a first insulating layer positioned on the thin film transistor, a pixel electrode connected with the thin film transistor and positioned on the first insulating layer, a common electrode positioned on the pixel electrode and spaced apart from the pixel electrode by a microcavity, a second insulating layer positioned on the common electrode, a roof layer positioned on the second insulating layer, a thickness of the roof layer being about 4 ?m to about 50 ?m, an injection hole through the common electrode, the second insulating layer, and the roof layer, the injection hole exposing a part of the microcavity, a liquid crystal layer filling the microcavity, and an overcoat on the roof layer and extending into the injection hole, the overcoat sealing the microcavity.
    Type: Application
    Filed: April 29, 2014
    Publication date: January 15, 2015
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyung Tae CHAE, Seon Uk LEE, Chung Hyuk LEE, Tae Woo LIM, Don Chan CHO