Patents by Inventor Ki-seung BANG

Ki-seung BANG 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).

  • Backlight device and holographic 3-dimensional image display device including the same
    Patent number: 11487153
    Abstract: A backlight device includes: a light source to emit coherent light; an optical path difference generator on the light source, the optical path difference generator including an incident surface and a plurality of light emitting surfaces, the light emitting surfaces being parallel to the incident surface and having different separation distances from the incident surface; a light condenser on the optical path difference generator; a diffuser on the light condenser; and a collimator on the diffuser.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: November 1, 2022
    Assignees: Samsung Display Co., Ltd., Seoul National University R&DB Foundation
    Inventors: Sang Ho Kim, Duk Ho Lee, Young Chan Kim, Ki Seung Bang, Chang Won Jang, Ji Won Lee, Cheon Myeong Lee, Byoung Ho Lee
  • BACKLIGHT DEVICE AND HOLOGRAPHIC 3-DIMENSIONAL IMAGE DISPLAY DEVICE INCLUDING THE SAME
    Publication number: 20210088849
    Abstract: A backlight device includes: a light source to emit coherent light; an optical path difference generator on the light source, the optical path difference generator including an incident surface and a plurality of light emitting surfaces, the light emitting surfaces being parallel to the incident surface and having different separation distances from the incident surface; a light condenser on the optical path difference generator; a diffuser on the light condenser; and a collimator on the diffuser.
    Type: Application
    Filed: August 24, 2020
    Publication date: March 25, 2021
    Inventors: Sang Ho KIM, Duk Ho LEE, Young Chan KIM, Ki Seung BANG, Chang Won JANG, Ji Won LEE, Cheon Myeong LEE, Byoung Ho LEE
  • Method and device for providing augmented reality image and recording medium storing program to execute the method
    Patent number: 10311615
    Abstract: A device and method for providing an augmented reality (AR) image are provided. The device includes a display configured to alternately display a first image including an object at an object position and a second image including a mask for blocking transmission of light incident on the display at the object position; a processor configured to determine a time period and control the display to alternately display the first image and the second image during the time period; and a polarization switch configured alternately polarize the light incident on the display at a switching period determined based on the time period.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: June 4, 2019
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Jae-woo Ko, Byoung-ho Lee, Byung-hyo Lee, Ki-seung Bang, Chang-won Jang
  • METHOD AND DEVICE FOR PROVIDING AUGMENTED REALITY IMAGE AND RECORDING MEDIUM STORING PROGRAM TO EXECUTE THE METHOD
    Publication number: 20180089871
    Abstract: A device and method for providing an augmented reality (AR) image are provided. The device includes a display configured to alternately display a first image including an object at an object position and a second image including a mask for blocking transmission of light incident on the display at the object position; a processor configured to determine a time period and control the display to alternately display the first image and the second image during the time period; and a polarization switch configured alternately polarize the light incident on the display at a switching period determined based on the time period.
    Type: Application
    Filed: June 14, 2017
    Publication date: March 29, 2018
    Applicants: SAMSUNG ELECTRONICS CO., LTD., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Jae-woo KO, Byoung-ho LEE, Byung-hyo LEE, Ki-seung BANG, Chang-won JANG