Patents by Inventor Min Cheol Kim

Min Cheol Kim 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: 9711073
    Abstract: A system for correcting defects on a display panel includes: a signal supplier configured to supply a test signal corresponding to each of a first reference gray level, a second reference gray level, and a third reference gray level to the display panel; a luminance calculator configured to capture an image for each reference gray level displayed on the display panel in response to the test signal and to calculate luminance distribution data of the display panel for each reference gray level; and a correction data calculator configured to calculate correction data based on the luminance distribution data for each reference gray level, wherein the first, second, and third reference gray levels have different gray values, the third reference gray level corresponds to a maximum gray value of gray data input to the display panel, and the correction data increases the maximum gray value of the input gray data.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: July 18, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Byung Geun Jun, Min Cheol Kim, In Hwan Kim
  • Publication number: 20170116904
    Abstract: A display device according to an exemplary embodiment of the present invention includes: a display unit configured to display a specific image according to first data supplied from the outside; an image compensator configured to receive a photographed image in which the specific image is photographed and generate variation information corresponding to luminance variations of pixels using the photographed image; an image corrector configured to generate second data by correcting the first data according to the variation information; and a data driver configured to generate a data signal using the first data or the second data and supply the data signal to the display unit.
    Type: Application
    Filed: June 2, 2016
    Publication date: April 27, 2017
    Inventors: Byung Geun Jun, Min Cheol Kim, In Hwan Kim, Ui Yeong Cha
  • Publication number: 20170116961
    Abstract: A luminance correction system includes: a display device that displays an image of a first grayscale value; an image capturing device that generates a first image and a second image by capturing the displayed image; and an image separator that generates a first high-frequency image by extracting a high-frequency image from the first image, and generates a second low-frequency image by extracting a low-frequency image from the second image, wherein the display device includes: an image corrector that generates a corrected image data by analyzing the first high-frequency image and the second low-frequency image to provide an analyzation result and by correcting an image data with respect to the displayed image in accordance with the analyzation result to generate the corrected image data; and a display unit including a plurality of pixels that emit light with luminance corresponding to the corrected image data.
    Type: Application
    Filed: June 3, 2016
    Publication date: April 27, 2017
    Inventors: Byung Geun JUN, Dan Bi KIM, Min Cheol KIM, In Hwan KIM, Ui Yeong CHA
  • Patent number: 9601046
    Abstract: A brightness correcting system and a method of correcting brightness are provided. The brightness correcting system includes a display unit divided into a plurality of sample regions, a brightness measuring unit for measuring brightness values in the sample regions, a controller for selecting a reference pixel from among representative pixels respectively included in the sample regions, an offset value calculating unit for calculating offset values corresponding to respective differences between the brightness value of the reference pixel and the brightness values of the representative pixels, and for linearly calculating offset values of remaining pixels using the offset values of the representative pixels, and a data correcting unit for correcting the image data using the offset values of the pixels and supplying the corrected image data to the data driver.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: March 21, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventor: Min-Cheol Kim
  • Publication number: 20170053587
    Abstract: A display device includes a display panel that includes a pixel, a current sensor that measures a driving current provided to the display panel, and a timing controller that calculates a reference driving current and a degradation ratio of the pixel based on first image data provided to the display panel and compensates second image data based on the driving current, the reference driving current, and the degradation ratio of the pixel.
    Type: Application
    Filed: April 20, 2016
    Publication date: February 23, 2017
    Inventors: Min-Cheol Kim, In-Hwan Kim, Byung-Geun Jun
  • Patent number: 9564074
    Abstract: A system and a method for luminance correction that can remove luminance spots of a display device. The system includes a display device, an image detection unit, and a luminance correction device. The display device includes a plurality of sub-pixels including first sub-pixels and corresponding second sub-pixels. The image detection unit is configured to measure respective luminance values of the first sub-pixels. The luminance correction device is configured to supply test data so that only the first sub-pixels emit light, and to calculate correction values corresponding to the plurality of sub-pixels based on difference values between the respective luminance values measured by the image detection unit and one or more target luminance values.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: February 7, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Byung-Geun Jun, Min-Cheol Kim, In-Hwan Kim, An-Su Lee
  • Patent number: 9510230
    Abstract: A method for a Mobility Management Entity (MME) to control a connection of a User Equipment (UE) in a mobile communication system is provided. The method includes a first standby method including an MME in a wireless communication system that includes predicting an overload durating time when an overload duration time that is predicted, transmitting to an enhanced Node B (eNodeB) information on the reconnection method of the UE that is decided, wherein the plurality of reconnection methods represent methods for the UE attempting reconnection with the MME after a second standby time that is longer than the first standby time, and an MME reselection method for the UE attempting the reconnection with an MME which is different from the MME.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: November 29, 2016
    Assignees: Samsung Electronics Co., Ltd., Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Sang-Soo Jeong, Song-Yean Cho, Seong-Lyun Kim, Beom-Sik Bae, Sang-Hoon Lee, Hyun-Kwan Lee, Beom-Hee Lee, Min-Cheol Kim
  • Patent number: 9508288
    Abstract: There is provided an organic light emitting display device and a method of driving the same. The organic light emitting display device includes pixels, a data driver, a scan driver to sequentially supply scan signals to scan lines, and a control line driver configured to supply emission control signals to emission control line. The data driver is to discharge the gate electrodes of the driving transistors of the pixels at a uniform discharge speed in a third period within a second period, wherein the second period is after the first period, the third period corresponds to a light emitting gray scale of each pixel, and after the second period, the pixels emit light.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: November 29, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Min-Cheol Kim, In-Hwan Kim, Byung-Geun Jun
  • Patent number: 9500102
    Abstract: A steam trap system is provided which can improve efficiency of sensor assembly and air-tightness. The steam trap system includes: a housing that includes a feeding hole for feeding steam, a discharging hole for discharging condensate water, and an opening; at least one sensor that is disposed inside the housing via the opening; an insulation member that is disposed in the opening to maintain air-tightness and to which the sensor is fixed to expose a terminal; and a cover that is disposed in the insulation member to cover the terminal.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: November 22, 2016
    Assignee: Metalgentech Co., Ltd.
    Inventors: Jung Eui Lee, Young Nam Ahn, Byoung Kwon Choi, Byung Hyuk Jeon, Min Cheol Kim
  • Patent number: 9478167
    Abstract: An organic light emitting display includes a power supply source and a power voltage compensation unit. The power supply source supplies at least a first power voltage to a first power voltage line of the display. The power voltage compensation unit to generate a first compensation power voltage based on the first power voltage and a feedback power voltage from the first power voltage line. The first power voltage compensation unit outputs the first compensation power voltage to the first power voltage line.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: October 25, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: In-Hwan Kim, Min-Cheol Kim, Byung-Geun Jun
  • Patent number: 9418589
    Abstract: A display device is disclosed. In one aspect, the device includes a display panel that includes i) a plurality of pixels including first and second light emission control transistors, ii) a first light emission driver configured to generate a first switching control signal, iii) a second light emission driver configured to generate a second switching control signal, iv) a signal controller configured to generate and transfer a first light emission control signal and v) a light emission controller configured to generate and transfer a second light emission control signal. The light emission controller acquires information of a gray depth from a result value obtained by summing gray data, determines a light emission control algorithm according to the gray depth, and generates the second light emission control signal so that the pixels emit light during different light emission periods for a plurality of frames.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: August 16, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Cheol Kim, In-Hwan Kim, Byung-Geun Jun
  • Publication number: 20160207931
    Abstract: The present invention relates to a pyrrolopyridazine derivative represented by Formula 1 of the detailed description, or a pharmaceutically acceptable salt thereof. The compound according to the present invention and a pharmaceutically acceptable salt thereof can inhibit the activity of protein kinase(s), and thus are useful for preventing or treating diseases related thereto.
    Type: Application
    Filed: August 29, 2014
    Publication date: July 21, 2016
    Applicant: CJ Healthcare Corporation
    Inventors: Tae Gon BAIK, Won-Hyuk JUNG, Seung In KIM, Seung Chan KIM, Sook Kyung PARK, Su Yeon JUNG, Seung Hee JI, So Young KI, Min Cheol KIM, Eun Young LEE, Eun Mi HONG
  • Publication number: 20160163866
    Abstract: An oxide semiconductor crystallization method may include depositing an In—Ga—Zn oxide over the substrate while heating a substrate to a temperature of 200 to 300° C., and heat-treating the deposited In—Ga—Zn oxide at a temperature of 200 to 350° C., thereby forming an oxide semiconductor layer crystallized throughout an entire thickness thereof.
    Type: Application
    Filed: November 10, 2015
    Publication date: June 9, 2016
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Min-Cheol KIM, Youn-Gyoung CHANG, Kwon-Shik PARK, So-Hyung LEE, Ho-Young JUNG, Ha-Jin YOO, Jeong-Suk YANG
  • Patent number: 9357209
    Abstract: Luminance correction systems and methods capable of reducing or removing luminance mura of display devices are provided. One luminance correction system includes: a display device including a plurality of pixels, the pixels including a plurality of sub-pixels, each of the pixels comprising at least two of the sub-pixels; an image capturing unit including a plurality of charge-coupled device (CCD) image capturing elements, an n×n arrangement of the image capturing elements corresponding torn of the pixels, n and m being natural numbers greater than or equal to 2; and a luminance correction device configured to generate a representative luminance value with respect to the m of the pixels based on luminance values measured by the n×n arrangement of the image capturing elements, and calculate a correction value with respect to the m of the pixels according to a difference between the representative luminance value and a target luminance value.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: May 31, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Cheol Kim, In-Hwan Kim, An-Su Lee, Byung-Geun Jun
  • Publication number: 20160150083
    Abstract: A vehicle emergency system includes an accident detection unit for detecting a collision strength to generate an accident signal, a telematics unit for generating a flag signal in response to the accident signal and for storing the flag signal, and a call center server for recognizing an emergency situation when the flag signal is delivered, and for executing an emergency procedure after emergency call, wherein the telematics unit, even when reset by the accident signal, checks the flag signal stored before reset, and automatically transmits at least one of the flag signal and an accident message generated based on the flag signal into the call center server.
    Type: Application
    Filed: November 23, 2015
    Publication date: May 26, 2016
    Inventor: Min Cheol KIM
  • Patent number: 9343483
    Abstract: A method for manufacturing a thin film transistor (TFT) array substrate having enhanced reliability is disclosed. The method includes forming a multilayer structure including at least one first metal layer and a second metal layer made of copper, forming a first mask layer including a first mask area corresponding to a data line and a second mask area corresponding to an electrode pattern to overlap with an active layer, patterning the multilayer structure, thereby forming the data line constituted by the multilayer structure, patterning the second metal layer, thereby forming the electrode pattern constituted by the at least one first metal layer, forming a second mask layer to expose a portion of the electrode pattern corresponding to a channel area of the active layer, patterning the at least one first metal layer, thereby forming source and drain.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: May 17, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Min-Cheol Kim, Youn-Gyoung Chang, Kwon-Shik Park, So-Hyung Lee, Ho-Young Jung, Ha-Jin Yoo, Jeong-Suk Yang
  • Patent number: 9324262
    Abstract: A pixel array structure of a display device, for example, an organic light emitting display device, includes a plurality of pixel units. In the pixel array structure, each of the pixel units includes four color pixels arranged in a lattice form, and a white sub-pixel positioned at the center of the pixel unit. The four pixels are disposed at a periphery of the pixel unit. In the pixel array structure, pixels are efficiently arranged in consideration of characteristics of the pixels.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: April 26, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Min-Cheol Kim, In-Hwan Kim
  • Patent number: 9269295
    Abstract: A display device is disclosed. The device includes a display panel including a plurality of pixels, each connected to a corresponding scan line, a corresponding data line, and a corresponding initialization control line and configured to display an image according to a data signal. The device includes an initialization voltage controller to measure a threshold voltage deviation for driving transistors of the pixels, and to set different initialization voltages for the pixels of each of a plurality of regions.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: February 23, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: In-Hwan Kim, Min-Cheol Kim, Byung-Geun Jun
  • Patent number: 9240509
    Abstract: Disclosed is a method of fabricating a microlens. The method includes forming a self assembly monolayer having a strong hydrophobicity on a substrate; forming a plurality of ink droplets on the self assembly monolayer by jetting a transparent ink using an inkjet apparatus, the transparent ink including a first solvent having a first boiling point, a second solvent having a second boiling point lower than the first boiling point and a silicon oxide (SiOx) solid material dispersed in the first and second solvents; and drying the plurality of ink droplets.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: January 19, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jae-Hyun Kim, Seong-Kee Park, Jung-shik Lim, Tae-Young Lee, Min-Cheol Kim
  • Patent number: 9224357
    Abstract: An apparatus and method for compensating an image of a display device are disclosed. The image compensation apparatus of a display device comprises a scatterometer configured to analyze luminance of a display image according to a test initialization voltage and a test data voltage applied to a plurality of pixels and to measure a deviation of a threshold voltage of a driving transistor of the plurality of pixels; a voltage controller configured to divide the display panel into a predetermined area according to a deviation of a threshold voltage of the driving transistor and to calculate different initialization voltages that initialize driving of pixels included in the area on a predetermined area basis; and an initialization voltage supplier configured to apply a corresponding initialization voltage calculated in the voltage controller to the plurality of pixels included in the predetermined area.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: December 29, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Cheol Kim, In-Hwan Kim, Byung-Geun Jun