Patents by Inventor Jae Soo Jang

Jae Soo Jang 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: 20150309375
    Abstract: A liquid crystal display includes: a first substrate; a pixel electrode on the first substrate and including a first subpixel electrode and a second subpixel electrode which are separated from each other; a second substrate facing the first substrate; a common electrode on the second substrate; and a liquid crystal layer between the first substrate and the second substrate, in which the first subpixel electrode includes a first plate-shaped portion and a plurality of first branch electrodes extended from the first plate-shaped portion, the second subpixel electrode includes a second plate-shaped portion surrounds the first branch electrodes and a plurality of second branch electrodes extended from the second plate-shaped portion, and a difference between a first voltage applied to the first subpixel electrode and a common voltage applied to the common electrode is larger than a difference between a second voltage applied to the second subpixel electrode and the common voltage.
    Type: Application
    Filed: April 24, 2015
    Publication date: October 29, 2015
    Inventors: Hak Sun Chang, Cheol Shin, Jae-Soo Jang, Ki Chul Shin, Jang Wi Ryu, Ho Kil Oh, Ka Eun Kim, Se Hyun Lee, Hyo Ju Jung
  • Patent number: 9151981
    Abstract: The viewing angle of a Liquid Crystal Display (LCD) apparatus is expanded by means of a sampled light redirecting layer, In one embodiment, the sampled light redirecting layer is formed as a compensation layer disposed between a top polarizing plate and the rest of a liquid crystal display panel having a first substrate, a second substrate, and a liquid crystal layer interposed therebetween. The compensation layer includes at least two optical path changing patterns disposed in interleaved manner. The two optical path changing patterns have different refractive indexes. As a result of the different refractive indices and shapes of the at least two different optical path changing patterns some of the light rays sampled out of the output of the rest of a liquid crystal display panel are directed in a first direction by means of reflection or refraction and some are directed in a different second direction, thereby improving a side visibility of the display apparatus.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: October 6, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sung Hwan Hong, Soon Joon Rho, Jae-Soo Jang, Jun Ha Park
  • Publication number: 20150255962
    Abstract: The present invention relates to an ionizer mounted to an air outlet of an air conditioner, and includes an ion generating unit for generating ions, and an ion visualizing unit mounted to an air outlet of an air conditioner for notifying whether the ion generating unit generates the ions or not, the ion visualizing unit having the ion generating unit mounted thereto, thereby permitting a user to notice whether the ionizer is mounted or not easily, and to express whether ions are generated or not and intensity of the ion generation.
    Type: Application
    Filed: September 23, 2013
    Publication date: September 10, 2015
    Applicant: LG ELECTRONICS inc
    Inventors: Bong Jo Sung, Jae Soo Jang, Kyung Soo Yoon, Il Na Son, Jung Geun Oh
  • Publication number: 20150146126
    Abstract: A liquid crystal display includes an insulation substrate, a plurality of pixels disposed on the insulation substrate, where each pixel has a shape elongated in a horizontal direction, and includes a thin film transistor formation region and a display area; and a reference voltage line extending in a vertical direction along a center of the display area, where the display area includes a single high-gray subpixel area and two low-gray subpixel areas, and the single high-gray subpixel area is positioned between the two low-gray subpixel areas.
    Type: Application
    Filed: September 19, 2014
    Publication date: May 28, 2015
    Inventors: Cheol SHIN, Hak Sun CHANG, Jang Wi RYU, Jae-Soo JANG, Ki Chul SHIN, Seong Young LEE
  • Publication number: 20150098053
    Abstract: A display apparatus includes a first substrate including a pixel electrode including a first pattern inclined at first and second angles with respect to a center line and a second substrate including a common electrode including a second pattern alternately arranged with the first pattern. The first angle is about +35 degrees to about +45 degrees and the second angle is about ?35 degrees to about ?45 degrees.
    Type: Application
    Filed: March 31, 2014
    Publication date: April 9, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Haksun CHANG, Cheol SHIN, Jang Wi RYU, Jae-Soo JANG, Kichul SHIN
  • Patent number: 8982309
    Abstract: A liquid crystal display device includes a substrate, a thin film transistor disposed on the substrate, a plurality of color filters disposed on the substrate, a light blocking member disposed between the plurality of color filters and on the thin film transistor, and a pixel electrode disposed on at least one of the plurality of color filters. The pixel electrode comprises a planar shape electrode and a plurality of minute branches extending from the planar shape electrode. The at least one of the plurality of color filters or the light blocking member comprises a step forming portion overlapped by the planar shape electrode.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: March 17, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Soo Jang, Hak-Sun Chang, Jang Wi Ryu, Ki Chul Shin
  • Publication number: 20150049289
    Abstract: A liquid crystal display includes a first substrate, a plurality of pixel electrodes disposed on the first substrate and including a first sub-pixel electrode and a second sub-pixel electrode, the first sub-pixel electrode and the second sub-pixel electrode respectively including a cruciform stem part, and a plurality of fine branch parts which extends from the cruciform stem part, and a liquid crystal layer interposed between the first substrate and a second substrate facing the first substrate, the second substrate including a common electrode in which an opening corresponding to the cruciform stem part of the pixel electrode is defined.
    Type: Application
    Filed: January 7, 2014
    Publication date: February 19, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Jae-Soo JANG, Jang Wi RYU, Cheol SHIN, Hak Sun CHANG, Ki Chul SHIN
  • Publication number: 20140267994
    Abstract: The present invention relates to a liquid crystal display including: a lower electrode including a unit pixel electrode; an upper electrode including an upper unit electrode facing the unit pixel electrode; and a liquid crystal layer between the lower electrode and the upper electrode and including a plurality of liquid crystal molecules aligned approximately perpendicular to the surfaces of the lower electrode and the upper electrode in the absence of an electric field, wherein the unit pixel electrode includes a stem forming a boundary between a plurality of sub-regions and a plurality of minute branches extending in different directions in two different sub-regions, the upper unit electrode includes an opening facing the stem and extending parallel to the stem, any alignment aid to pretilt the liquid crystal molecules is absent, and a length of the minute branches is equal to or less than about 53 ?m.
    Type: Application
    Filed: July 3, 2013
    Publication date: September 18, 2014
    Inventors: Jang Wi RYU, Cheol SHIN, Hak Sun CHANG, Ki Chul SHIN, Jae-Soo JANG, Ka Eun KIM, Ho Kil OH, Se Hyun LEE, Hyo Ju JUNG, Sang Hyeon SONG, Sang Jin JEON
  • Patent number: 8809802
    Abstract: An ion generator is disclosed. The ion generator has improved portability and ion generation efficiency. As is apparent from the above description, the ion generator according to the present invention is configured so that the discharge unit is constituted by the felts, and the piezoelectric element, not the coil type transformer, is used in the high voltage generation unit which generates high voltage. Consequently, the present invention has the effect of improving portability of the ion generator and the present invention has the effect of improving ion generation efficiency although the portability of the ion generator is improved by configuring the ion generator according to the present invention so that the discharge unit is constituted by the felts, and the piezoelectric element, not the coil type transformer, is used in the high voltage generation unit which generates high voltage.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: August 19, 2014
    Assignee: LG Electronics Inc.
    Inventors: Bong Jo Sung, Hyung Ho Park, Jae Soo Jang
  • Patent number: 8810761
    Abstract: A liquid crystal display according to an exemplary embodiment of the present invention includes: a first substrate; a pixel electrode disposed on the first substrate; a first alignment layer disposed on the first substrate and the pixel electrode; a second substrate facing the first substrate; a common electrode disposed on the second substrate; a second alignment layer disposed on the second substrate and the common electrode; and a liquid crystal layer disposed between the first substrate and the second substrate, wherein the common electrode has a plurality of cutouts having a cross shape, and when viewing the first substrate and the second substrate upward, the edge of the cutout is protruded from the edge of the pixel electrode.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: August 19, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae Hong Park, Sung-Jae Yun, Jae-Soo Jang, Jun Ha Park, Jeong Ho Lee, Hyeok Jin Lee, Sung Hwan Hong, Oh Jeong Kwon, Jae-Hoon Kim, Kwang-Soo Bae
  • Publication number: 20140168582
    Abstract: A liquid crystal display device includes a lower panel having a lower substrate. A pixel electrode is formed on the lower substrate and includes a partial plate electrode and a plurality of minute branch electrodes extending from the partial plate electrode. A lower layer is formed on the lower substrate and below the pixel electrode and includes an inclined portion. An upper panel includes an upper substrate facing the lower substrate and a common electrode formed on the upper substrate. A liquid crystal layer is positioned between the lower panel and the upper panel, in which a part of the inclined portion is overlapped with a part of the minute branch electrode.
    Type: Application
    Filed: September 4, 2013
    Publication date: June 19, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hak Sun CHANG, Jang Wi RYU, Jae-Soo JANG, Ki Chul SHIN
  • Publication number: 20140132874
    Abstract: A liquid crystal display device includes a substrate, a thin film transistor disposed on the substrate, a plurality of color filters disposed on the substrate, a light blocking member disposed between the plurality of color filters and on the thin film transistor, and a pixel electrode disposed on at least one of the plurality of color filters. The pixel electrode comprises a planar shape electrode and a plurality of minute branches extending from the planar shape electrode. The at least one of the plurality of color filters or the light blocking member comprises a step forming portion overlapped by the planar shape electrode.
    Type: Application
    Filed: March 18, 2013
    Publication date: May 15, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Jae-Soo JANG, Hak-Sun Chang, Jang Wi Ryu, Ki Chul Shin
  • Patent number: 8724042
    Abstract: A twisted nematic liquid crystal display device includes a first substrate, a plurality of gate lines and a plurality of data lines formed on the first substrate, a plurality of pixels connected to the gate lines and the data lines and each pixel having a first subpixel and a second subpixel, a first subpixel electrode formed in the first subpixel, and a second subpixel electrode formed in the second subpixel. The voltage of the first subpixel electrode is greater than the voltage of the second subpixel electrode, and a ratio of the area of the second subpixel electrode to the area of the first subpixel electrode is in the range of 0.66 to 1.5.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: May 13, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung-Hwan Hong, Soon-Joon Rho, Jae-Soo Jang, Hee-Seop Kim
  • Publication number: 20140098313
    Abstract: A liquid crystal display includes first and second substrates, first and second alignment layers, and a liquid crystal layer between the alignment layers and including liquid crystal molecules. The liquid crystal molecules on a surface of the first alignment layer have a first pretilt angle in a direction which is vertical with respect to a horizontal plane surface parallel to the first substrate, and a first alignment angle in a direction which is horizontal with respect to a horizontal line parallel to the horizontal plane surface. The liquid crystal molecules on a surface of the second alignment layer have a second pretilt angle in the direction which is vertical with respect to the horizontal plane surface and different from the first pretilt angle, and a second alignment angle in the direction which is horizontal with respect to the horizontal line and different from the first alignment angle.
    Type: Application
    Filed: February 21, 2013
    Publication date: April 10, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae-Soo JANG, HAKSUN CHANG, JANG WI RYU, KICHUL SHIN
  • Publication number: 20140043571
    Abstract: A liquid crystal including: a first substrate; a pixel electrode disposed on the first substrate and including a first subpixel electrode and a second subpixel electrode disposed in one pixel area; a second substrate facing the first substrate; and a common electrode disposed on the second substrate, wherein an area of a region occupied by the first subpixel electrode is less than an area of a region occupied by the second subpixel electrode. Each of the first and second subpixels has a cross-shaped stem and minute branches extending from it to improve side visibility quality and gray scale uniformity.
    Type: Application
    Filed: March 15, 2013
    Publication date: February 13, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Hak Sun CHANG, Jang Wi RYU, Ki Chui SHIN, Jae-Soo JANG
  • Publication number: 20130329149
    Abstract: A liquid crystal composition including about 70 percent by weight to about 98 percent by weight of a liquid crystal molecule; and about 2 percent by weight to about 30 percent by weight of a hydrogel agent, each based on a total weight of the liquid crystal composition.
    Type: Application
    Filed: February 11, 2013
    Publication date: December 12, 2013
    Applicants: Industrial Cooperation Foundation Chonbuk National University, SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae-Soo JANG, Shin-Woong KANG, Su-Yeon OH, Seung-Hee LEE, Se-Hyun LEE, Hyeok-Jin LEE, Seung-Ho HONG
  • Publication number: 20130242239
    Abstract: A liquid crystal display including a partial plate electrode along with a minute pattern in pixel electrode thereby increasing the viewing angle and the lateral visibility of the liquid crystal display, as well as the response speed A step provider is provided to reinforce the control force of the liquid crystal molecules, thereby reducing the texture generated in the center of the pixel.
    Type: Application
    Filed: September 13, 2012
    Publication date: September 19, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hak Sun CHANG, Eun-Kil PARK, Hyun-Ho KANG, Jang Wi RYU, Seung-Suk YANG, Ki Chul SHIN, Se Hyun LEE, Jae-Soo JANG, Hyo Ju JUNG
  • Publication number: 20130169919
    Abstract: A method of manufacturing a liquid crystal display includes: forming a liquid crystal panel including two substrates and a liquid crystal layer interposed between the two substrates and irradiating light to the liquid crystal layer in a state in which a voltage is applied to the liquid crystal panel. The liquid crystal layer includes liquid crystal molecules and a reactive monomer, and the voltage applied to the liquid crystal panel is an AC voltage. The liquid crystal molecules are isotropic in a state that the voltage is not applied thereto and are anisotropic in a state that the voltage is applied thereto.
    Type: Application
    Filed: April 27, 2012
    Publication date: July 4, 2013
    Inventors: Seung Ho Hong, Sung-Kyu Hong, Choong Hwan Kim, Se Hyun Lee, Hyeok Jin Lee, Jae-Soo Jang
  • Publication number: 20120305799
    Abstract: An ion generator is disclosed. The ion generator has improved portability and ion generation efficiency. As is apparent from the above description, the ion generator according to the present invention is configured so that the discharge unit is constituted by the felts, and the piezoelectric element, not the coil type transformer, is used in the high voltage generation unit which generates high voltage. Consequently, the present invention has the effect of improving portability of the ion generator and the present invention has the effect of improving ion generation efficiency although the portability of the ion generator is improved by configuring the ion generator according to the present invention so that the discharge unit is constituted by the felts, and the piezoelectric element, not the coil type transformer, is used in the high voltage generation unit which generates high voltage.
    Type: Application
    Filed: January 14, 2011
    Publication date: December 6, 2012
    Applicant: LG ELECTRONICS INC.
    Inventors: Bong Jo Sung, Hyung Ho Park, Jae Soo Jang
  • Patent number: 8323940
    Abstract: Disclosed are a formaldehyde dehydrogenase-containing air cleaning filter, and a method for manufacturing the same. The method includes coating a carrier with formaldehyde dehydrogenase to immobilize the formaldehyde dehydrogenase thereon. Alternatively, the method includes coating a carrier with a coating solution, and drying the carrier, wherein the coating solution comprises a metal selected from the group consisting of zinc, gold, silver, copper, platinum and combinations thereof, a formaldehyde dehydrogenase, a polyphenol-based compound, a binder selected from the group consisting of silicon-modified acrylic resins, urethane resins, acrylic resins and silicon resins, and water or alcohol. Accordingly, the air cleaning filter wherein a carrier is coated with formaldehyde dehydrogenase, manufactured by the method, is capable of efficiently removing VOCs, in particular, formaldehyde, present in air.
    Type: Grant
    Filed: July 11, 2008
    Date of Patent: December 4, 2012
    Assignee: LG Electronics Inc.
    Inventors: Ok Chun Hyun, Sung Hwa Lee, Jae Soo Jang