Patents by Inventor Ju-kyung JO

Ju-kyung JO 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).

  • Method for setting driving voltage of display device
    Patent number: 10614751
    Abstract: A method of setting a driving voltage of a display device including the steps of: measuring luminance of the display device; obtaining a color coordinate from the luminance of the display device and determining luminance efficiency with respect to the color coordinate; determining an initial value of the driving voltage with respect to the determined luminance efficiency; and determining an optimal driving voltage of the display device by using the determined initial value of the driving voltage.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: April 7, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seong Min Lee, Dong Jin Lee, Ju Kyung Jo
  • METHOD FOR SETTING DRIVING VOLTAGE OF DISPLAY DEVICE
    Publication number: 20190206305
    Abstract: A method of setting a driving voltage of a display device including the steps of: measuring luminance of the display device; obtaining a color coordinate from the luminance of the display device and determining luminance efficiency with respect to the color coordinate; determining an initial value of the driving voltage with respect to the determined luminance efficiency; and determining an optimal driving voltage of the display device by using the determined initial value of the driving voltage.
    Type: Application
    Filed: June 12, 2018
    Publication date: July 4, 2019
    Inventors: Seong Min LEE, Dong Jin LEE, Ju Kyung JO
  • Method of aging organic light emitting display device
    Patent number: 10210797
    Abstract: A method for aging an organic light emitting display includes estimating a lifespan curve of a display panel based on at least one initial aging profile of the display panel, correcting at least one of a target luminance or a target white color coordinates of the display panel such that the estimated lifespan curve corresponds to a target lifespan curve, and setting a lifespan look up table by storing at least one of the correction value of the target luminance or the correction value of the target white color coordinates.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: February 19, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seong Min Lee, Hyo Min Kim, Chi Yeoung Shim, Ju Kyung Jo
  • METHOD OF AGING ORGANIC LIGHT EMITTING DISPLAY DEVICE
    Publication number: 20170069261
    Abstract: A method for aging an organic light emitting display includes estimating a lifespan curve of a display panel based on at least one initial aging profile of the display panel, correcting at least one of a target luminance or a target white color coordinates of the display panel such that the estimated lifespan curve corresponds to a target lifespan curve, and setting a lifespan look up table by storing at least one of the correction value of the target luminance or the correction value of the target white color coordinates.
    Type: Application
    Filed: May 24, 2016
    Publication date: March 9, 2017
    Inventors: Seong Min LEE, Hyo Min KIM, Chi Yeoung SHIM, Ju Kyung JO
  • Display device and method for manufacturing the same
    Patent number: 9437844
    Abstract: A display device includes a substrate, a first electrode on the substrate, a pixel defining layer on the substrate, the pixel defining layer having an opening exposing the first electrode, a metal layer on the pixel defining layer, a light emission layer on the first electrode exposed by the opening, and a second electrode on the light emission layer in the opening. The metal layer contacts the second electrode.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: September 6, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seong-Min Lee, Sun-Hwa Kim, Hyun-Shik Lee, Hyo-min Kim, Hyuk-Sang Jun, Ju-kyung Jo
  • DISPLAY DEVICE AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20150243704
    Abstract: A display device includes a substrate, a first electrode on the substrate, a pixel defining layer on the substrate, the pixel defining layer having an opening exposing the first electrode, a metal layer on the pixel defining layer, a light emission layer on the first electrode exposed by the opening, and a second electrode on the light emission layer in the opening. The metal layer contacts the second electrode.
    Type: Application
    Filed: October 3, 2014
    Publication date: August 27, 2015
    Inventors: Seong-Min LEE, Sun-Hwa KIM, Hyun-shik LEE, Hyo-min KIM, Hyuk-Sang JUN, Ju-kyung JO