Patents by Inventor Nak-cho Choi

Nak-cho Choi 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: 20170059907
    Abstract: An array substrate is provided. The array substrate includes: a first substrate; and a color filter layer disposed on the first substrate, wherein the color filter layer comprises: a first color filter that is located on the first substrate and comprises a recess and a sub-protrusion; and a second color filter that is located on the first substrate to be adjacent to the first color filter along a first direction, and comprises a protrusion protruding toward the recess of the first color filter. The sub-protrusion of the first color filter protrudes toward the protrusion of the second color filter and is at least partially superimposed with the protrusion.
    Type: Application
    Filed: February 4, 2016
    Publication date: March 2, 2017
    Inventors: Joong Gun CHONG, Nak Cho CHOI, Je Hong CHOI
  • Publication number: 20170045771
    Abstract: The described technology relates generally to a display device, and the display device according to an exemplary embodiment includes: a main panel; an auxiliary panel positioned at two opposing edges of the main panel; and a cover glass covering a front surface of the main panel and the auxiliary panel, wherein the auxiliary panel has a curved shape.
    Type: Application
    Filed: July 12, 2016
    Publication date: February 16, 2017
    Inventors: Nak Cho CHOI, Su Wan WOO, Suk CHOI
  • Publication number: 20170017114
    Abstract: A display device may include a lighting unit, a transparent substrate, a liquid crystal layer, a polarizer, and a plurality of fillers. The liquid crystal layer may be positioned between the lighting unit and the transparent substrate. The polarizer may be positioned between the liquid crystal layer and the transparent substrate and may include a plurality of conductive members. The conductive members may be electrically conductive, opaque, and spaced from one another. The fillers may include at least one of a plurality of phase difference members formed of a polymer material, a plurality of passivation members formed of an electrically insulating material, and a plurality of gas members formed of a gaseous material. The fillers and the conductive members may be alternately arranged in a direction parallel to the transparent substrate.
    Type: Application
    Filed: March 7, 2016
    Publication date: January 19, 2017
    Inventors: Nak Cho CHOI, Jong Hak HWANG, Su Wan WOO, Yeo Geon YOON, Je Hong CHOI
  • Patent number: 9429796
    Abstract: A liquid crystal display includes: a substrate; a thin film transistor comprising one or more terminals and disposed on the substrate; a pixel electrode connected to one of the terminals of the thin film transistor; and a roof layer disposed to face the pixel electrode, wherein a microcavity is formed between the pixel electrode and the roof layer, the microcavity including a liquid crystal material, wherein a plurality of microcavities are disposed along a first row and a second row adjacent to each other, a trench is formed between the first row and the second row, and at least one bridge connecting the first row and the second row is disposed at the trench.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: August 30, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyoung Sub Lee, Tae Gyun Kim, Woo Yong Sung, Nak Cho Choi, Sang Gun Choi, Si Kwang Kim, Tae Woon Cha
  • Publication number: 20160195768
    Abstract: A liquid crystal display (LCD) includes: a liquid crystal panel; a backlight unit for supplying light to the liquid crystal panel; and a wavelength-converting reflector disposed between the liquid crystal panel and the backlight unit. Light reflected from the wavelength-converting reflector has a shorter wavelength as a reflection angle increases.
    Type: Application
    Filed: July 27, 2015
    Publication date: July 7, 2016
    Inventors: Wan-Soon IM, Hyoung Cheol LEE, Nak Cho CHOI, Yong Woo HYUNG
  • Patent number: 9261725
    Abstract: A liquid crystal display has liquid crystal containerizing micro-cavities monolithically integrally formed as part of a thin film transistors substrate thereof where mouths of the micro-cavities are sealed shut by material of a capping layer and where the capping layer is patterned to have relatively thicker regions and comparatively thinner or devoid of capping material regions interposed between the thicker regions for thereby providing the capping layer with improved flexibility, the relatively thicker regions being disposed over the mouths of the microcavities.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: February 16, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Valeriy Prushinskiy, Tae Wook Kang, Min Soo Kim, Len Kaplan, Nak Cho Choi
  • Publication number: 20150103286
    Abstract: A display device is disclosed. In one aspect, the display device includes a display panel displaying an image, a backlight assembly including a light source supplying light to the display panel, and a mold frame. The mold frame includes a quadrangular body surrounding the display panel and the backlight assembly, a support portion formed along an inner circumference of the body and supporting the display panel, and a plurality of buffer guides. The buffer guides are placed on the support portion the four corners of the mold frame. The buffer guide includes a bottom portion placed on the support portion and an impact absorbing portion formed over the bottom portion and contacting the body.
    Type: Application
    Filed: March 20, 2014
    Publication date: April 16, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Joo Woan Cho, Nak Cho Choi
  • Patent number: 9007550
    Abstract: Provided are a display device capable of reducing a weight, a thickness, a cost, and a process time and having a durable structure, and a manufacturing method thereof. The display device includes: a substrate including a plurality of pixel areas; a thin film transistor formed on substrate; a first electrode connected to the thin film transistor to be formed in the pixel area; an organic layer formed on the first electrode so as to be connected along the adjacent pixel areas in a first direction among the pixel areas; a space positioned on the first electrode, of which parts of the upper surface and the side are surrounded by the organic layer; a liquid crystal formed to fill the space; and an overcoat formed to cover the rest side of the space which is not covered by the organic layer, in which a height of the upper surface of the organic layer is gradually lowered toward both edges of the pixel area from the center of the pixel area.
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: April 14, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Nak Cho Choi, Yeun Tae Kim
  • Publication number: 20150092130
    Abstract: A liquid crystal display includes: a substrate; a thin film transistor comprising one or more terminals and disposed on the substrate; a pixel electrode connected to one of the terminals of the thin film transistor; and a roof layer disposed to face the pixel electrode, wherein a microcavity is formed between the pixel electrode and the roof layer, the microcavity including a liquid crystal material, wherein a plurality of microcavities are disposed along a first row and a second row adjacent to each other, a trench is formed between the first row and the second row, and at least one bridge connecting the first row and the second row is disposed at the trench.
    Type: Application
    Filed: March 6, 2014
    Publication date: April 2, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Hyoung Sub Lee, Tae Gyun Kim, Woo Yong Sung, Nak Cho Choi, Sang Gun Choi, Si Kwang Kim, Tae Woon Cha
  • Publication number: 20150070631
    Abstract: A liquid crystal display has liquid crystal containerizing micro-cavities monolithically integrally formed as part of a thin film transistors substrate thereof where mouths of the micro-cavities are sealed shut by material of a capping layer and where the capping layer is patterned to have relatively thicker regions and comparatively thinner or devoid of capping material regions interposed between the thicker regions for thereby providing the capping layer with improved flexibility, the relatively thicker regions being disposed over the mouths of the microcavities.
    Type: Application
    Filed: February 6, 2014
    Publication date: March 12, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Valeriy PRUSHINSKIY, Tae Wook KANG, Min Soo KIM, Len KAPLAN, Nak Cho CHOI
  • Patent number: 8970817
    Abstract: A display panel includes a fiber reinforced plastic substrate having a first lattice pattern with a first lattice period P, and a pixel layer disposed on the substrate having a second lattice pattern having a second lattice period H, in which if H>P, P and H satisfy P = 2 ? H 2 ? n + 1 , where n is a natural number, and if H>P, P and H satisfy P = ( 2 ? n + 1 ) ? H 2 .
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: March 3, 2015
    Inventors: Seon Uk Lee, Sang Il Kim, Jin Bo Shim, Nak Cho Choi, Jin Woo Choi
  • Patent number: 8908126
    Abstract: A liquid crystal display includes: an insulation substrate; pixel electrodes on the insulation substrate; a voltage auxiliary wiring on the insulation substrate and between adjacent pixel electrodes; a liquid crystal layer positioned in microcavities, where the voltage auxiliary wiring is exposed between adjacent microcavities; and a common electrode which overlaps the liquid crystal layer and the exposed voltage auxiliary wiring.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: December 9, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung Hwan Won, Young Joon Cho, Kyung Tae Chae, Nak Cho Choi
  • Publication number: 20140132896
    Abstract: Provided are a liquid crystal display including a liquid crystal display panel comprising a first substrate and a liquid crystal layer, an upper polarizer disposed on the liquid crystal display, a lower polarizer disposed under the liquid crystal display, and a first phase delay layer located on the liquid crystal display panel, configured to compensate for a phase delay value in a thickness direction and comprising parylene.
    Type: Application
    Filed: November 4, 2013
    Publication date: May 15, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Nak Cho CHOI, Jae Cheol PARK, Seung Beom PARK, Gyeong Eun EOH, Yun JANG
  • Patent number: 8629820
    Abstract: A liquid crystal display (“LCD”) includes a plurality of gate lines, a plurality of data lines intersecting the gate lines, a plurality of switching elements connected to the gate lines and the data lines, a plurality of storage electrodes, a plurality of storage electrode lines connected to the storage electrodes, a plurality of pixel electrodes connected to the switching elements and overlapping the storage electrodes, a gate driver generating gate signals having a gate-on voltage and a gate-off voltage to apply to the gate lines, a data driver generating data voltages corresponding to externally applied image signals to apply to the data lines, and a storage electrode driver generating storage electrode signals having a reference voltage, a high voltage larger than the reference voltage, and a low voltage smaller than the reference voltage to apply to the storage electrode lines.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: January 14, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hee-Wook Do, Ji-Won Sohn, Nak-Cho Choi, Jiangang Lu, Hak-Sun Chang, Chang-Hun Lee
  • Patent number: 8614776
    Abstract: A display apparatus includes a first substrate, a second substrate, and a blocking layer disposed on the first substrate adjacent to an outer edge of the first substrate. The second substrate includes first and second areas. The first area faces the first substrate. The outer edge of the first substrate is aligned with a boundary between the first area and the second area of the second substrate.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: December 24, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Woo Lee, Inseok Yeo, Donghyun Yu, Nak-Cho Choi, Pil-Sook Kwon, Hae-Ju Yun, Woo-Jae Lee, Jong-Seong Kim
  • Publication number: 20130321734
    Abstract: A liquid crystal display includes: an insulation substrate; pixel electrodes on the insulation substrate; a voltage auxiliary wiring on the insulation substrate and between adjacent pixel electrodes; a liquid crystal layer positioned in microcavities, where the voltage auxiliary wiring is exposed between adjacent microcavities; and a common electrode which overlaps the liquid crystal layer and the exposed voltage auxiliary wiring.
    Type: Application
    Filed: December 20, 2012
    Publication date: December 5, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sung Hwan WON, Young Joon CHO, Kyung Tae CHAE, Nak Cho CHOI
  • Publication number: 20130313582
    Abstract: A monolithically integrated display panel is formed to include a substrate, a first electrode disposed on the substrate, a partitioning member disposed above the first electrode where the partitioning member defines a substantially containerizing volume for a to-be-introduced and then later selectively removed sacrificial member, a light attribute controlling material disposed in the containerizing volume and replacing the selectively removed sacrificial member, where an upper width of the light attribute controlling material is substantially different in dimension than a lower width of the light attribute controlling material, and a second electrode disposed above the light attribute controlling material and insulated from the first electrode.
    Type: Application
    Filed: November 2, 2012
    Publication date: November 28, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Young-Joon CHO, Joon-Chul GOH, Yeun-Tae KIM, Nak-Cho CHOI
  • Publication number: 20130306994
    Abstract: A display panel includes a fiber reinforced plastic substrate having a first lattice pattern with a first lattice period P, and a pixel layer disposed on the substrate having a second lattice pattern having a second lattice period H, in which if H>P, P and H satisfy P = 2 ? H 2 ? n + 1 , where n is a natural number, and if H>P, P and H satisfy P = ( 2 ? n + 1 ) ? H 2 .
    Type: Application
    Filed: September 6, 2012
    Publication date: November 21, 2013
    Inventors: SEON UK LEE, Sang Il Kim, Jin Bo Shim, Nak Cho Choi, Jin Woo Choi
  • Publication number: 20130286312
    Abstract: Provided are a display device capable of reducing a weight, a thickness, a cost, and a process time and having a durable structure, and a manufacturing method thereof. The display device includes: a substrate including a plurality of pixel areas; a thin film transistor formed on substrate; a first electrode connected to the thin film transistor to be formed in the pixel area; an organic layer formed on the first electrode so as to be connected along the adjacent pixel areas in a first direction among the pixel areas; a space positioned on the first electrode, of which parts of the upper surface and the side are surrounded by the organic layer; a liquid crystal formed to fill the space; and an overcoat formed to cover the rest side of the space which is not covered by the organic layer, in which a height of the upper surface of the organic layer is gradually lowered toward both edges of the pixel area from the center of the pixel area.
    Type: Application
    Filed: October 15, 2012
    Publication date: October 31, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Nak Cho CHOI, Yeun Tae KIM
  • Patent number: 8564520
    Abstract: A method for driving a display panel, the display panel including a plurality of pixels, each of the plurality of pixels including a cholesteric liquid crystal capacitor, includes; applying a common voltage to the display panel, displaying a video on the display panel by applying a data voltage to at least one of the plurality of pixels, the data voltage having a phase which is one of inverted to and substantially the same as a phase of the common voltage with respect to a reference voltage.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: October 22, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Uk-Chul Choi, Nak-Cho Choi, Sung-Woon Kim