Patents by Inventor Gak-Seok Lee

Gak-Seok Lee 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: 20160109758
    Abstract: A display device according to the exemplary embodiment of the present invention includes: a first insulation substrate; a pixel electrode disposed on the first insulation substrate; a first alignment layer disposed on the pixel electrode; a second insulation substrate facing the first insulation substrate; a common electrode disposed on the second insulation substrate; and a liquid crystal layer disposed between the first and second insulation substrates. The liquid crystal layer includes liquid crystal molecules and nanoparticles, and the nanoparticles are disposed adjacent to the common electrode.
    Type: Application
    Filed: April 16, 2015
    Publication date: April 21, 2016
    Inventors: Jang Wi RYU, Gak Seok LEE
  • Patent number: 9318066
    Abstract: A display panel comprises a plurality of pixels. A first pixel among the plurality of pixels comprises a first subpixel which further comprises a first subpixel electrode, a first switching element configured to apply a data voltage to the first subpixel electrode, and a second switching element applying a boosting voltage to the first subpixel electrode. The first pixel further comprises a second subpixel comprising a second subpixel electrode and a third switching element applying the data voltage to the low pixel electrode. Accordingly, the display quality and the reliability of the display panel may be improved.
    Type: Grant
    Filed: August 15, 2012
    Date of Patent: April 19, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Youn-Hak Jeong, Gak-Seok Lee
  • Patent number: 9207512
    Abstract: A manufacturing method of a transparent display device including: forming a pixel between a first substrate and a second substrate facing the first substrate, the pixel including a liquid crystal layer disposed between the first and second substrates, applying a first voltage having a frequency lower than a reference frequency to the liquid crystal layer to drive liquid crystal molecules of the liquid crystal layer as positive liquid crystal molecules, applying a second voltage having a frequency higher than the reference frequency to the liquid crystal layer to drive the liquid crystal molecules as negative liquid crystal molecules, and pre-tilting the liquid crystal molecules operated as the negative liquid crystal in a predetermined direction.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: December 8, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventor: Gak Seok Lee
  • Patent number: 9201281
    Abstract: A liquid crystal display includes a common electrode for receiving a common voltage. The liquid crystal display further includes a pixel electrode for receiving a data voltage, the pixel electrode being associated with a pixel of the liquid crystal display. The liquid crystal display further includes a switching element electrically connected to the pixel electrode for controlling transmission of the data voltage. The liquid crystal display further includes a liquid crystal layer disposed between the common electrode and the pixel electrode. The liquid crystal display further includes a plate electrode electrically connected to the switching element and including a plate that overlaps the pixel electrode, wherein the pixel electrode spans a larger area than the plate. The pixel electrode and the plate electrode are equipotential.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: December 1, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Youn Hak Jeong, Gak Seok Lee, Ki Chul Shin
  • Patent number: 9202402
    Abstract: The present invention relates to a three-dimensional image display device and a driving method thereof. A three-dimensional image display device according to an exemplary embodiment of the present invention includes: a display panel assembly including a display panel including a plurality of pixels alternately displaying a left eye image and a right eye image and a data driver transmitting a data voltage to the plurality of pixels; and a shutter member including a left eye shutter and a right eye shutter, wherein a display period of an insertion image is positioned between a display period of the left eye image and a display period of the right eye image, a minimum gray of the left eye image or the right eye image is a first gray that is greater than 0 gray, and a gray of the insertion image is a second gray that is smaller the first gray.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: December 1, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hak Sun Chang, Jang Wi Ryu, Hyo Ju Jung, Gak Seok Lee
  • Publication number: 20150331267
    Abstract: A manufacturing method of a transparent display device including: forming a pixel between a first substrate and a second substrate facing the first substrate, the pixel including a liquid crystal layer disposed between the first and second substrates, applying a first voltage having a frequency lower than a reference frequency to the liquid crystal layer to drive liquid crystal molecules of the liquid crystal layer as positive liquid crystal molecules, applying a second voltage having a frequency higher than the reference frequency to the liquid crystal layer to drive the liquid crystal molecules as negative liquid crystal molecules, and pre-tilting the liquid crystal molecules operated as the negative liquid crystal in a predetermined direction.
    Type: Application
    Filed: January 26, 2015
    Publication date: November 19, 2015
    Inventor: GAK SEOK LEE
  • Publication number: 20150301421
    Abstract: A liquid crystal display includes: first and second display panels facing each other; and a liquid crystal layer between the first display panel and the second display panel and including an alignment assisting agent. The first display panel includes: a first substrate; a first gate line and a second gate line on the first substrate and spaced apart from each other; a data line crossing the first gate line and the second gate line; a shielding electrode on the data line and insulated from the data line; a first electrode electrically connected with the first gate line and the data line; a passivation layer on the first electrode; and a second electrode on the passivation layer and electrically connected with the second gate line and the shielding electrode. The second display panel includes a third electrode on a second substrate. The second electrode includes a branch portion.
    Type: Application
    Filed: November 24, 2014
    Publication date: October 22, 2015
    Inventors: Gak Seok LEE, Hyeon Gu CHO
  • Publication number: 20150253610
    Abstract: A liquid crystal display device includes a first display substrate, a second display substrate, a liquid crystal layer, and a sealant. The sealant is disposed between the first display substrate and the second display substrate to seal the liquid crystal layer. The sealant includes a first sealant that contacts the liquid crystal layer and a second sealant across the first sealant from the liquid crystal layer. The first sealant has a cure rate greater than that of the second sealant, and may prevent moisture and impurities from entering the liquid crystal layer.
    Type: Application
    Filed: March 5, 2015
    Publication date: September 10, 2015
    Inventors: Byoung-Hun SUNG, Gak Seok LEE, Duckjong SUH
  • Publication number: 20150227005
    Abstract: A display panel includes a first substrate including a common electrode, a second substrate including a first solid pixel electrode and a second solid pixel electrode, and a liquid crystal layer including liquid crystal between the first substrate and the second substrate. The second solid pixel electrode is spaced apart from the first solid pixel electrode, and surrounds the first solid pixel electrode.
    Type: Application
    Filed: April 24, 2015
    Publication date: August 13, 2015
    Inventors: Gak-Seok LEE, Keun-Chan OH, Taek-Joon LEE
  • Patent number: 9086601
    Abstract: A liquid crystal display includes a first substrate including a plurality of pixel areas, a second substrate facing the first substrate, and a liquid crystal layer disposed between the first substrate and the second substrate. The first substrate includes a first base substrate, a first pixel electrode disposed on the first base substrate and corresponding to each pixel area, a shielding electrode spaced apart from and insulated from the first pixel electrode, a passivation layer disposed on the first pixel electrode and the shielding electrode, and a second pixel electrode disposed on the passivation layer and partially overlapped with the first pixel electrode.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: July 21, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Youn Hak Jeong, Gak Seok Lee, Kichul Shin, Heehwan Lee, Jiphyo Hong
  • Publication number: 20150198837
    Abstract: An exemplary embodiment of the present invention provides a liquid crystal display, including: a first substrate including a first pixel electrode, the first pixel electrode having a planar shape; a second substrate disposed facing the first substrate, including a common electrode disposed on the second substrate; a liquid crystal layer including a plurality of liquid crystal molecules disposed between the first substrate and the second substrate; and a plurality of pixels disposed between the first substrate and the second substrate, each of the plurality of pixels including a plurality of domains, and liquid crystal molecules of the liquid crystal layer disposed in different domains have different pretilt directions.
    Type: Application
    Filed: July 21, 2014
    Publication date: July 16, 2015
    Inventors: Young Min KIM, Jae Byung Park, Gak Seok Lee, Seung-Hwan Cho
  • Patent number: 9081232
    Abstract: A display panel includes a gate line, a data line, a pixel electrode formed adjacent to the gate and data lines on a lower substrate and a first alignment film disposed in a first domain disposed on the pixel electrode and in a second domain formed on pixel electrode. The first domain is aligned in a first direction and the second domain is aligned in a second direction which is different from the first direction. The upper substrate opposes the lower substrate and includes a common electrode disposed on the upper substrate and a second alignment film disposed on the common electrode at a third domain corresponding to the first domain and at a fourth domain corresponding to the second domain. The liquid crystal layer is disposed between the lower substrate and the upper substrate and includes liquid crystals defined by a plurality of pixel areas.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: July 14, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hak-Sun Chang, Jang-Wi Ryu, Gak-Seok Lee, Jun-Woo Lee, Hee-Hwan Lee, Hyo-Ju Jung
  • Patent number: 9081237
    Abstract: A liquid crystal display panel, including: a first substrate including a common electrode; a second substrate including a plurality of pixels which are arranged in a matrix form and face the common electrode, wherein at least one of the pixels includes first and second subpixels; the first subpixel including a first subpixel electrode, wherein the first subpixel electrode includes a plurality of first micro branches, which are arranged at a first angle with respect to a polarization axis of a polarizer disposed adjacent to the first or second substrate; the second subpixel including a second subpixel electrode, wherein the second subpixel electrode includes a plurality of second micro branches, which are arranged at a second angle with respect to the polarization axis of the polarizer, wherein the first angle is different from the second angle by about 20° or less; and a liquid crystal layer interposed between the first and second substrates.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: July 14, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyong-Sik Choi, Myung-Jae Park, Min-Wook Park, Sung-Hoon Kim, Gak-Seok Lee, Woo-Jung Shin, Jun-Hyup Lee, Keun-Chan Oh, Sang-Gyun Kim, Su-Jeong Kim, Seung-Beom Park, Youn-Hak Jeong
  • Patent number: 9069217
    Abstract: A display panel includes a first substrate including a common electrode, a second substrate including a first solid pixel electrode and a second solid pixel electrode, and a liquid crystal layer including liquid crystal between the first substrate and the second substrate. The second solid pixel electrode is spaced apart from the first solid pixel electrode, and surrounds the first solid pixel electrode.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: June 30, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Gak-Seok Lee, Keun-Chan Oh, Taek-Joon Lee
  • Patent number: 9057917
    Abstract: A liquid crystal display panel, including: a pixel electrode formed on a first substrate; an alignment layer formed on the pixel electrode, wherein the alignment layer includes an alignment layer material and aligns first liquid crystal molecules in a direction substantially perpendicular to the pixel electrode; and a photo hardening layer formed on the alignment layer, wherein the photo hardening layer includes a photo hardening layer material and aligns second liquid crystal molecules to be tilted with respect to the pixel electrode, wherein the alignment layer material and the photo hardening layer material have different polarities from each other.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: June 16, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyong-Sik Choi, Myung-Jae Park, Min-Wook Park, Sung-Hoon Kim, Gak-Seok Lee, Woo-Jung Shin, Jun-Hyup Lee, Keun-Chan Oh, Sang-Gyun Kim, Su-Jeong Kim, Seung-Beom Park, Youn-Hak Jeong
  • Publication number: 20150116643
    Abstract: A display device includes two facing substrates, a liquid crystal layer provided between the two substrates, and alignment layers provided between the liquid crystal layer and each of the substrates. The alignment layer includes a main layer, and an alignment forming layer provided on the main layer and including a plurality of domains phase separated from the main layer.
    Type: Application
    Filed: April 11, 2014
    Publication date: April 30, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Duckjong SUH, Hyunku Ahn, Gak Seok Lee, Taekjoon Lee, Seungyeon Jeong, Hyeon Gu Cho, Jaejin Lyu
  • Publication number: 20150118806
    Abstract: A liquid crystal display may include a first substrate, a second substrate facing the first substrate, a liquid crystal layer comprising liquid crystal molecules that are interposed between the first substrate and the second substrate, a first electrode disposed on the first substrate, an insulating layer disposed on the first electrode, a second electrode disposed on the insulating layer, a third electrode disposed on the second substrate, and an alignment layer disposed on any one of the second electrode and the third electrode. The second electrode comprises a fine slit structure, and at least one of the liquid crystal layer and the alignment layer comprises a sub-alignment substance.
    Type: Application
    Filed: January 2, 2015
    Publication date: April 30, 2015
    Inventors: Gak-Seok LEE, Ki Chul Shin, Youn Hak Jeong, Hee Hwan Lee, Joo Seok Yeom
  • Patent number: 8953128
    Abstract: A liquid crystal display may include a first substrate, a second substrate facing the first substrate, a liquid crystal layer comprising liquid crystal molecules that are interposed between the first substrate and the second substrate, a first electrode disposed on the first substrate, an insulating layer disposed on the first electrode, a second electrode disposed on the insulating layer, a third electrode disposed on the second substrate, and an alignment layer disposed on any one of the second electrode and the third electrode. The second electrode comprises a fine slit structure, and at least one of the liquid crystal layer and the alignment layer comprises a sub-alignment substance.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: February 10, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Gak-Seok Lee, Ki Chul Shin, Youn Hak Jeong, Hee Hwan Lee, Joo Seok Yeom
  • Publication number: 20140320790
    Abstract: A liquid crystal display device including a first substrate, a first alignment layer provided on the first substrate, a second substrate facing the first substrate, a second alignment layer provided on the second substrate, and a liquid crystal layer provided between the first substrate and the second substrate and including liquid crystal molecules is provided. Each of the first alignment layer and the second alignment layer includes a base alignment layer, and an alignment forming layer provided on the base alignment layer, and the alignment forming layer comprises a derivative of a heat stabilizer and an alignment material comprising first functional group which is polymerized to initially align the liquid crystal molecules.
    Type: Application
    Filed: January 21, 2014
    Publication date: October 30, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: GAK SEOK LEE, Duckjong SUH, Hyunku AHN, Kyoungtae KIM, TAEKJOON LEE, Seungyeon JEONG
  • Patent number: 8865274
    Abstract: A liquid crystal display device is provided, including a liquid crystal layer interposed between a first display panel and a second display panel; and an alignment film formed on at least one of the first and second display panels, the alignment film including first polysiloxanes and second polysiloxanes disposed on the first polysiloxanes, wherein a first portion of silicon atoms of the second polysiloxanes are bonded to vertical functional groups interacting with liquid crystal molecules in the liquid crystal layer, and to first pre-tilting functional groups aligning the liquid crystal molecules in the liquid crystal layer to be tilted with respect to at least one of the first and second display panels by being cross-linked. The bonding structure of the first and the second polysiloxanes being different.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: October 21, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyong-Sik Choi, Myung-Jae Park, Min-Wook Park, Sung-Hoon Kim, Gak-Seok Lee, Woo-Jung Shin, Jun-Hyup Lee, Keun-Chan Oh, Sang-Gyun Kim, Su-Jeong Kim, Seung-Beom Park, Youn-Hak Jeong