Patents by Inventor Hee Jin Im

Hee Jin Im 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).

  • Patent number: 10382745
    Abstract: A stereoscopic image display device including a display panel including a plurality of sub-pixels arranged in a matrix defined by a horizontal direction and a vertical direction, the display panel having a changeable display direction; and a parallax unit on the display panel and including a plurality of optical elements having a tilt angle of 30° to 60° relative to the vertical direction and a pitch corresponding to a multiple of a pitch of the sub-pixels. Among the sub-pixels located to correspond to each of the optical elements, at least two sub-pixels, adjacently arranged, display the same view image.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: August 13, 2019
    Assignee: LG Display Co., Ltd.
    Inventor: Hee-Jin Im
  • Publication number: 20190208185
    Abstract: A stereoscopic display device having a barrier panel is provided. The barrier panel may include channel electrodes across an active area. Each of the channel electrodes may include an end portion connected to corresponding link line. Each of the channel electrodes may be connected to the link line same as (n+1)th channel electrode from the channel electrode. The barrier panel may further include connecting lines to connect between opposite end portions of the channel electrode which are connected to the same link line. Thus, in the stereoscopic display device, the number of the wires extending along an edge of the active area may be reduced.
    Type: Application
    Filed: December 17, 2018
    Publication date: July 4, 2019
    Applicant: LG DISPLAY CO., LTD.
    Inventors: You-Yong JIN, Dong-Yeon KIM, Wook JEON, Hee-Jin IM, Yong-Ku LEE, Ju-Hoon JANG, Woon-Chan MOON
  • Publication number: 20190129194
    Abstract: A stereoscopic display device having a barrier panel is provided. The barrier panel may include lower channels, a channel insulating layer and upper channels, which are sequentially stacked on a barrier panel. The lower channels may be disposed between the upper channels. Each of the lower channels may include a first sub-channel, a second sub-channel and a lower insulating layer. The lower insulating layer may be spaced away from the first sub-channel. The second sub-channel may be connected to an end region of the first sub-channel facing the upper channels. The second sub-channel may be extended along a side wall of the lower insulating layer facing the first sub-channel. Thus, in the stereoscopic display device according to the embodiment of the present disclosure, a distance between the lower channels may be minimized.
    Type: Application
    Filed: October 17, 2018
    Publication date: May 2, 2019
    Inventors: You-Yong JIN, Wook JEON, Hee-Jin IM, Yong-Ku LEE, Ju-Hoon JANG, Dong-Yeon KIM, Woon-Chan MOON
  • Publication number: 20190072774
    Abstract: A stereoscopic display device having a barrier panel is provided. The barrier panel can include channel electrodes to form transmitting regions and blocking regions in an active area, and link lines to provide a signal to the channel electrodes. The stereoscopic display device can include a display driver driving a display panel; a barrier panel on the display panel, the barrier panel including channel electrodes across an active area, and link lines disposed outside the active area; and a barrier driver controlling the channel electrodes through the link lines, wherein the number of the link lines in which each channel electrode crosses, is constant. Thus, in the stereoscopic display device, a dark spot due to a load deviation of the channel electrodes can be prevented.
    Type: Application
    Filed: September 6, 2018
    Publication date: March 7, 2019
    Applicant: LG DISPLAY CO., LTD.
    Inventors: You-Yong JIN, Wook JEON, Hee-Jin IM, Yong-Ku LEE, Ju-Hoon JANG, Dong-Yeon KIM, Woon-Chan MOON
  • Publication number: 20180299685
    Abstract: A stereoscopic display device including a barrier panel is provided. When a viewing distance of a viewer is out of the proper range, the stereoscopic display device may shift the blocking regions and the transmitting regions of the barrier panel. The stereoscopic display device may maintain the ratio of channels located within a barrier blocking region and a barrier transmitting region of the barrier panel by using the channels disposed within trigger regions of the barrier panel. Thus, the stereoscopic display device may provide a stereoscopic image of good quality to the viewer located at a region being out of the proper range.
    Type: Application
    Filed: April 17, 2018
    Publication date: October 18, 2018
    Inventors: You-Yong JIN, Hoon KANG, Byung-Joo LEE, Bu-Yeol LEE, Wook JEON, Hee-Jin IM, Yong-Ku LEE, Ju-Hoon JANG, Dong-Yeon KIM, Woon-Chan MOON
  • Publication number: 20180004019
    Abstract: A liquid crystal barrier is configured to determine the viewing position of a viewer and selectively adjust based on the viewing position of the viewer. The liquid crystal barrier includes a barrier panel and a driving voltage supply unit. The barrier panel includes first electrodes, second electrodes, and liquid crystal layer. Opposite ends of the first electrodes are connected between 2n first channel lines, which form n channels, on a lower substrate. Opposite ends of the second electrodes are connected between 2n second channel lines, which form n channels, on an upper substrate. The liquid crystal layer is filled between the upper and lower substrates. The driving voltage supply unit is configured to supply at least one of a driving voltage and a common voltage to at least one of the first electrodes and the second electrodes.
    Type: Application
    Filed: June 30, 2017
    Publication date: January 4, 2018
    Applicant: LG Display Co., Ltd.
    Inventors: Hee-Jin Im, Seung-Man Ryu
  • Publication number: 20170237972
    Abstract: A stereoscopic image display device including a display panel including a plurality of sub-pixels arranged in a matrix defined by a horizontal direction and a vertical direction, the display panel having a changeable display direction; and a parallax unit on the display panel and including a plurality of optical elements having a tilt angle of 30° to 60° relative to the vertical direction and a pitch corresponding to a multiple of a pitch of the sub-pixels. Among the sub-pixels located to correspond to each of the optical elements, at least two sub-pixels, adjacently arranged, display the same view image.
    Type: Application
    Filed: February 15, 2017
    Publication date: August 17, 2017
    Applicant: LG Display Co., Ltd.
    Inventor: Hee-Jin Im
  • Patent number: 9715121
    Abstract: The present invention is for a switchable 3-dimensional conversion device having a spacer stably formed at a predetermined height by imprinting, a manufacturing method thereof and a stereoscopic image display device using the same, the method includes: providing a first electrode on an inner surface of a first substrate; applying a resin material to the first electrode to a predetermined thickness; placing a mold structure which has a concave part formed with a predetermined depth thereon, on the resin material; stamping the resin material using the mold structure, in order to form a spacer pattern; dry etching the spacer pattern to form a spacer; forming a plurality of second electrodes, which are spaced from one another and have longitudinal axes in one direction, respectively, on a second substrate; and arranging the first and second substrates opposite to each other, bonding the same, and forming a liquid crystal layer between the first and second substrates.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: July 25, 2017
    Assignee: LG Display Co., Ltd.
    Inventors: Yun-Ho Kook, Soon-Sung Yoo, Chul-Ho Kim, Hee-Jin Im
  • Publication number: 20170163975
    Abstract: Disclosed is a stereoscopic image display device which separates views from each other to reduce crosstalk and minimizes reduction in brightness due to decrease of an opening area of sub-pixels. The stereoscopic image display device includes a display panel including first and second sub-pixels arranged in parallel in the horizontal direction in each of regions formed by intersecting a plurality of gate lines and a plurality of data lines, openings for opening a part of each of the first and second sub-pixels in a light-shielding pattern configured to shield regions of the first and second sub-pixels other than the openings, and a parallax unit located on the display panel and including a plurality of lenses.
    Type: Application
    Filed: November 29, 2016
    Publication date: June 8, 2017
    Inventors: You-Yong JIN, Byung-Joo LEE, Hee-Jin IM, Tae-Young HEO, Jin-Hyuk JANG, Won-Sik LEE
  • Patent number: 8964135
    Abstract: Disclosed is stereoscopic display device in which barriers crossing each other are formed on two substrates and voltage is applied to the barrier pattern to drive liquid crystals between the two substrates such that one of the barriers is selectively driven, enabling selective implementation of 3-dimensional (3D) display and dual view display.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: February 24, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Sung Woo Kim, Jong Hoon Woo, Hee Jin Im
  • Patent number: 8581815
    Abstract: Disclosed is a display device adapted to selectively display a normal image, a stereoscopic image, a multi-view image and a stereoscopic multi-view image is disclosed. The display device includes a liquid crystal panel displaying an image; a polarizer disposed on the liquid crystal panel; a liquid crystal lens disposed on the polarizer; and a polarizing member interposed between the liquid crystal lens and the liquid crystal panel, wherein an axis of light transmitted through the liquid crystal lens coincides with an optical axis of the polarizer. Accordingly, the display device can selectively display a normal image, a stereoscopic image, a multi-view image and a stereoscopic multi-view image, while improving the picture quality and the brightness.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: November 12, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Hyung Ki Hong, Hee Jin Im
  • Patent number: 8502953
    Abstract: A liquid crystal lens electrically driven and stereoscopy display device using the same are disclosed, by which a thickness of a liquid crystal layer provided to the liquid crystal lens electrically driven is reduced in a manner of applying fresnel lens within a pitch anisotropically.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: August 6, 2013
    Assignee: LG Display Co., Ltd.
    Inventor: Hee-Jin Im
  • Patent number: 8502930
    Abstract: Disclosed are an electrically-driven liquid crystal lens which includes a light shade to be switched on/off according to whether or not voltage is applied, reducing a cell gap of a liquid crystal layer, and a stereoscopic display device using the same, the electrically-driven liquid crystal lens includes first and second substrates opposite each other and each including plural lens regions and a light shade provided at a boundary of each lens region, first electrodes formed in a given direction on the first substrate in each lens region, a second electrode formed on the second substrate and having an aperture corresponding to the light shade, first and second light shade switching electrodes formed at the light shade and extending parallel to the first electrodes, a liquid crystal layer between both the substrates, and a polarizer plate formed above the second substrate and having a first transmission axis.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: August 6, 2013
    Assignee: LG Display Co., Ltd.
    Inventor: Hee Jin Im
  • Patent number: 8358399
    Abstract: An electrically-driven liquid crystal lens wherein electric connection between finely split electrodes and signal lines used to apply signals to the split electrodes can be accomplished using a minimal number of masks and signals can be applied to the finely split electrodes without line resistance, and a stereoscopic display device using the same are disclosed.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: January 22, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Byung Joo Lee, Hee Jin Im
  • Publication number: 20120299808
    Abstract: An image display device which enables tracking of a viewer and is convertible into a 2D display mode without loss of viewing angle, includes an image panel to emit a 2-dimensional (2D) image, a backlight unit to direct collimated light to the image panel, a scattered-light converting cell provided over the backlight unit, the scattered-light converting cell to scatter the collimated light upon 2D display and to directly emit the collimated light upon 3D display, and a holographic optical element provided over the backlight unit, the holographic optical element to adjust an optical path so as to set a viewing window to a position of a viewer upon 3D display.
    Type: Application
    Filed: December 21, 2011
    Publication date: November 29, 2012
    Inventors: Guen-Sik LEE, Hee-Jin Im, Hyung-Seok Bang
  • Patent number: 8305550
    Abstract: An electrically-driven liquid crystal lens, and a stereoscopic display device using the same, including first and second substrates arranged opposite each other and including an active region having a plurality of lens regions and a pad region defined at an outer rim of the active region, a plurality of first electrodes formed on the first substrate to correspond to the respective lens regions and spaced apart from one another, a second electrode formed on the entire surface of the second substrate, a voltage source to apply different voltages to the plurality of first electrodes, respectively, and to apply a ground voltage to the second electrode, and a liquid crystal layer interposed between the first substrate and the second substrate.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: November 6, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Sung Min Jung, Hee Jin Im
  • Patent number: 8254026
    Abstract: A three-dimensional image display capable of reducing a difference between a resolution variation rate in a pixel column direction and a resolution variation rate in a pixel row direction and preventing a color separation phenomenon is disclosed. The three-dimensional image display includes a display panel in which n (n is a natural number) disparity images are displayed and the same disparity images are distributed and displayed in subpixels of the same color, and a lenticular sheet which divides travel paths of the disparity images using a plurality of lenticular lenses which are obliquely arranged in front of the display panel, and the long axes of the lenticular lenses are parallel to an extension line of the subpixels in which the same disparity images are displayed.
    Type: Grant
    Filed: May 7, 2008
    Date of Patent: August 28, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Hyung Ki Hong, Byung Joo Lee, Hee Jin Im
  • Publication number: 20120162763
    Abstract: A image display device includes a display panel including a display area and a non-display area, wherein the display area includes left-eye horizontal pixel lines displaying a left-eye image and right-eye horizontal pixel lines displaying a right-eye image; a polarizing film disposed over the display panel, wherein the polarizing film linearly polarizes the left-eye image and the right-eye image; a patterned retarder disposed over the polarizing film and including left-eye retarders and right-eye retarders, wherein the left-eye retarders correspond to the left-eye horizontal pixel lines and change the linearly polarized left-eye image into left-circularly polarized image, and the right-eye retarders correspond to the right-eye horizontal pixel lines and change the linearly polarized image into right-circularly polarized image; and a lenticular lens film disposed over the polarizing film and including lenticular lenses, wherein the lenticular lenses correspond to the left-eye retarders and the right-eye retard
    Type: Application
    Filed: November 18, 2011
    Publication date: June 28, 2012
    Inventors: Hyeon-Ho SON, Jin-Yeong Kim, Hee-Young Chae, Seung-Man Ryu, Hee-Jin Im, Ju-Hoon Jang
  • Publication number: 20120001890
    Abstract: The present invention is for a switchable 3-dimensional conversion device having a spacer stably formed at a predetermined height by imprinting, a manufacturing method thereof and a stereoscopic image display device using the same, the method includes: providing a first electrode on an inner surface of a first substrate; applying a resin material to the first electrode to a predetermined thickness; placing a mold structure which has a concave part formed with a predetermined depth thereon, on the resin material; stamping the resin material using the mold structure, in order to form a spacer pattern; dry etching the spacer pattern to form a spacer; forming a plurality of second electrodes, which are spaced from one another and have longitudinal axes in one direction, respectively, on a second substrate; and arranging the first and second substrates opposite to each other, bonding the same, and forming a liquid crystal layer between the first and second substrates.
    Type: Application
    Filed: July 1, 2011
    Publication date: January 5, 2012
    Inventors: Yun-Ho KOOK, Soon-Sung Yoo, Chul-Ho Kim, Hee-Jin Im
  • Patent number: 8035763
    Abstract: An electrically-driven liquid crystal lens, which can achieve not only a gentle parabolic lens plane when being realized via alignment of liquid crystals based on a changed electrode configuration, but also a reduced cell gap of a liquid crystal layer and a stable profile even in a large-area display device, and a stereoscopic display device using the same are disclosed.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: October 11, 2011
    Assignee: LG Display Co., Ltd.
    Inventor: Hee Jin Im