Patents by Inventor Hee Jin Choi

Hee Jin Choi 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: 20240386182
    Abstract: A routing method in a multilayer structure is provided. The routing method may include: acquiring a routing problem, wherein the routing problem is a problem of generating a path set that includes respective paths for multiple node groups arranged in a multilayer structure, generating a routing order example for the multiple node groups, generating a path set for the multiple node groups by executing a routing algorithm based on the routing order example, establishing a training set by obtaining a cost of the generated path set based on a predefined evaluation function, and training a deep learning model to predict a routing order using the training set.
    Type: Application
    Filed: May 17, 2024
    Publication date: November 21, 2024
    Applicants: SAMSUNG SDS CO., LTD., UNIST (ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
    Inventors: Jae Ho YANG, Rak-Kyeong Seong, Chang Hyeong Lee, Hee Jin Choi, Min Ji Lee
  • Patent number: 10223958
    Abstract: A display device includes a first unit pixel disposed in a first pixel column and a first pixel row, and a second unit pixel disposed in the first pixel column and a second pixel row adjacent to the first pixel row, and first and second gate lines extending in a row direction and having gate voltage input pads at a terminal portion thereof. First and second data lines extend in a column direction and are connected to the first unit pixel and the second unit pixel, respectively. A first charge control line extends in the row direction and has a charge control gate voltage input pad disposed at a terminal portion thereof. The first gate line is connected to the first unit pixel and the second gate line is connected to the second unit pixel. The first gate line and the second gate line simultaneously receive a same gate pulse.
    Type: Grant
    Filed: October 12, 2015
    Date of Patent: March 5, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jun-Pyo Lee, Sun-Kyu Son, Ok-Kwon Shin, Jung-Won Kim, Hee-Jin Choi, Sang-Soo Kim
  • Patent number: 9373298
    Abstract: A display device includes a signal controller processing an input image signal and an input control signal and outputting an image signal and a control signal. A gray voltage generator generates reference gray voltages. The control signal includes a selection signal. A data driver generates gray voltages based on the reference gray voltage, selects a gray voltage corresponding to the image signal among the generated gray voltages, and applies the selected gray voltage to a pixel as a first data voltage. The data driver applies a black data voltage corresponding to a black image to the pixel according to the selection signal.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: June 21, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ok-Kwon Shin, Sun-Kyu Son, Jae-Han Lee, Hee-Jin Choi
  • Publication number: 20160035271
    Abstract: A display device includes a first unit pixel disposed in a first pixel column and a first pixel row, and a second unit pixel disposed in the first pixel column and a second pixel row adjacent to the first pixel row, and first and second gate lines extending in a row direction and having gate voltage input pads at a terminal portion thereof. First and second data lines extend in a column direction and are connected to the first unit pixel and the second unit pixel, respectively. A first charge control line extends in the row direction and has a charge control gate voltage input pad disposed at a terminal portion thereof. The first gate line is connected to the first unit pixel and the second gate line is connected to the second unit pixel. The first gate line and the second gate line simultaneously receive a same gate pulse.
    Type: Application
    Filed: October 12, 2015
    Publication date: February 4, 2016
    Inventors: Jun-Pyo LEE, Sun-Kyu SON, Ok-Kwon SHIN, Jung-Won KIM, Hee-Jin CHOI, Sang-Soo KIM
  • Patent number: 9158168
    Abstract: A display device includes a first unit pixel disposed in a first pixel column and a first pixel row, and a second unit pixel disposed in the first pixel column and a second pixel row adjacent to the first pixel row, and first and second gate lines extending in a row direction and having gate voltage input pads at a terminal portion thereof. First and second data lines extend in a column direction and are connected to the first unit pixel and the second unit pixel, respectively. A first charge control line extends in the row direction and has a charge control gate voltage input pad disposed at a terminal portion thereof. The first gate line is connected to the first unit pixel and the second gate line is connected to the second unit pixel. The first gate line and the second gate line simultaneously receive a same gate pulse.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: October 13, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jun-Pyo Lee, Sun-Kyu Son, Ok-Kwon Shin, Jung-Won Kim, Hee-Jin Choi, Sang-Soo Kim
  • Patent number: 8947440
    Abstract: A display device includes an image signal processing unit to output a high-speed image signal with the aid of an image interpolation unit outputting a low-speed image signal. The display device includes an image signal processing unit to receive a primitive image signal having a first frequency and to output a 4× image signal having a second frequency. The second frequency is four times the first frequency. The display device includes a display panel displaying an image corresponding to the 4× image signal. The primitive image signal includes an (n?1)-th frame (where n is a natural number) and an n-th frame. The image signal processing unit includes a first image interpolation unit and second image interpolation unit, which receive the (n?1)-th frame and the n-th frame and output a 2× image signal including at least one interpolated frame.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: February 3, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hee-Jin Choi, Sang-Soo Kim, Dong-Won Park, Po-Yun Park, Bong-Hyun You, Dong-Gyun Ra
  • Patent number: 8786789
    Abstract: A stereoscopic image display device includes; a display device includes a plurality of pixels, and which displays a first image transmitted to a left eye and displays a second image transmitted to a right eye, wherein the display device displays the first image and the second image by inserting a third image representing a predetermined luminance between the first image transmitted to the left eye and the second image transmitted to the right eye.
    Type: Grant
    Filed: January 21, 2010
    Date of Patent: July 22, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jung-Won Kim, Jun-Pyo Lee, Hee-Jin Choi, Bong-Hyun You
  • Patent number: 8648788
    Abstract: A display apparatus includes a plurality of frame rate controllers that generate a motion interpolated intermediate image. The frame rate controllers exchange image information with adjacent frame rate controllers. According to the display apparatus, each frame rate controller displays the intermediate image on a corresponding display area based on the image information provided from the adjacent frame rate controller.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: February 11, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Sung Bae, Jung-Hwan Cho, Bong-Hyun You, Jun-Pyo Lee, Jung-Won Kim, Sang-Soo Kim, Seon-Ki Kim, Hee-Jin Choi
  • Patent number: 8525872
    Abstract: A method for displaying a three-dimensional (“3D”) image includes; dividing the 3D image input from an external device into a first image frame corresponding to a first eye of a viewer and a second image frame corresponding to a second eye of the viewer, and generating a first compensation frame and a second compensation frame subsequent to the first image frame and the second image frame, respectively, and displaying the first compensation frame and the second compensation frame on a display panel.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: September 3, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hee-Jin Choi, Jun-Pyo Lee, Jung-Won Kim, Sang-Soo Kim, Bong-Hyun You
  • Patent number: 8493343
    Abstract: A method for reducing noise of a touch panel includes: generating a detection signal including at least one contact region; generating a combination noise region including at least a portion of the at least one contact region; and generating a final detection signal. The generating the final detection signal includes removing the combination noise region from the detection signal.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: July 23, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Nam-Hee Goo, Hee-Jin Choi, Hee-Bum Park, Byoung-Jun Lee, Jai-Hyun Koh, Bong-Hyun You
  • Patent number: 8432512
    Abstract: A backlight assembly includes a light source part, a total reflection plate and an array sheet. The light source part generates light. The total reflection plate totally internally reflects or transmits the light selectively according to an incident path of the light. The array sheet disposed on the total reflection plate includes a plurality of units having an incident surface making contact with the total reflection plate and an emitting surface facing the incident surface, refracts the totally internally reflected light at a contact surface between the incident surface and the total reflection plate to emit the refracted light, and emits the transmitted light as a non-refracted light. Accordingly, luminance of the display device is enhanced.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: April 30, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hwi Kim, Hee-Jin Choi, Hee-Seop Kim, Hae-Young Yun
  • Patent number: 8376190
    Abstract: A foam pump dispenser that has a prevention function against any reverse flow is disclosed, which comprises an air guide which is engaged at a lower side of the air and liquid mixing chamber of the piston cover member; a liquid leakage prevention spring which is located between the piston cover member and the piston member; and a liquid leakage prevention valve which is covered on the upper side of the liquid compression piston. The foam pump dispenser with the above construction is able to prevent a leakage of liquid, and is able to obtain a reliable fixed supply of air in a pump dispenser designed to properly mix liquid such as foaming cleanser, foam hand soap, shave foam, and hair mousse, etc. with air and to pump out in a foam shape.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: February 19, 2013
    Inventors: Hee Jin Choi, Yu Kwang Oh, Won hee Lee
  • Patent number: 8339534
    Abstract: A display device includes gate lines; data lines; charge control lines each including a charge control voltage input pad; first and second thin film transistors (TFTs) each including control and input electrodes connected to the gate and data lines, respectively; a first liquid crystal capacitor connected to an output electrode of the first TFT; a second liquid crystal capacitor connected to an output electrode of the second TFT; a charge control TFT including a control electrode and an input electrode connected to one of the charge control lines and the second pixel electrode, respectively; and a charge-down capacitor connected to an output electrode of the charge control TFT. A duration time of a turn-on voltage pulse applied to the charge control TFT is different from a duration time of a turn-on voltage pulse applied to the first TFT transistor or the second TFT.
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: December 25, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jun-Pyo Lee, Sun-Kyu Son, Ok-Kwon Shin, Jung-Won Kim, Hee-Jin Choi, Sang-Soo Kim, Hyong-Rae Lee, Duk-Hwan Kang, Kwan-Woo Lee
  • Patent number: 8189128
    Abstract: A liquid crystal display includes: a liquid crystal panel; a plurality of first light sources disposed below the liquid crystal panel; a first diffusion member disposed between the liquid crystal panel and the first light sources; a plurality of second light sources disposed below the liquid crystal panel and which emit a sensing signal toward the liquid crystal panel; and a plurality of sensors disposed in or below the liquid crystal panel. The sensing signal emitted from the plurality of second light sources toward the liquid crystal panel is reflected by an object disposed above the liquid crystal panel and is detected by the plurality of sensors before transmitting through the first diffusion member away from the liquid crystal panel such that a shape of the object is determined based on the sensing signal reflected from the object and detected by the plurality of sensors.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: May 29, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seiki Takahashi, Bong-Hyun You, Hee-Jin Choi, Sang-Soo Kim, Yong-Hwi Kim
  • Patent number: 8085351
    Abstract: A display device includes: a first substrate; a gate line formed on the first substrate; a first switching device connected to the gate line; a pixel electrode connected to the first switching device; a light-receiving device formed on the first substrate and which senses infrared light; and a light-shielding pattern disposed between the first substrate and the light receiving device. The light-shielding pattern overlaps the light-receiving device and blocks light.
    Type: Grant
    Filed: March 13, 2009
    Date of Patent: December 27, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seiki Takahashi, Bong-Hyun You, Hee-Jin Choi
  • Patent number: 8085228
    Abstract: A display apparatus includes a display panel, a light generator disposed under the display panel to generate light, a light sensor disposed between the display panel and the light generator and which senses a first portion of the light generated by the light generator and reflected by an object disposed above the display panel, a light diffuser disposed between the display panel and the light sensor, and an image processor which provides image data corresponding to the first portion of the light sensed by the light sensor to the display panel.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: December 27, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-Jin Choi, Seiki Takahashi, Bong-Hyun You
  • Publication number: 20110234560
    Abstract: A display device includes a signal controller processing an input image signal and an input control signal and outputting an image signal and a control signal. A gray voltage generator generates reference gray voltages. The control signal includes a selection signal. A data driver generates gray voltages based on the reference gray voltage, selects a gray voltage corresponding to the image signal among the generated gray voltages, and applies the selected gray voltage to a pixel as a first data voltage. The data driver applies a black data voltage corresponding to a black image to the pixel according to the selection signal.
    Type: Application
    Filed: January 19, 2011
    Publication date: September 29, 2011
    Inventors: Ok-Kwon Shin, Sun-Kyu Son, Jae-Han Lee, Hee-Jin Choi
  • Publication number: 20110175865
    Abstract: A display apparatus includes a plurality of frame rate controllers that generate a motion interpolated intermediate image. The frame rate controllers exchange image information with adjacent frame rate controllers. According to the display apparatus, each frame rate controller displays the intermediate image on a corresponding display area based on the image information provided from the adjacent frame rate controller.
    Type: Application
    Filed: April 1, 2011
    Publication date: July 21, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-Sung BAE, Jung-Hwan CHO, Bong-Hyun YOU, Jun-Pyo LEE, Jung-Won KIM, Sang-Soo KIM, Seon-Ki KIM, Hee-Jin CHOI
  • Publication number: 20110157161
    Abstract: A method of displaying a stereoscopic image comprises; dividing an input image into a left-eye image and a right-eye image, estimating a crosstalk in accordance with a position of a display panel using a grayscale difference between the left-eye image and the right-eye image, displaying the left-eye image and the right-eye image and adjusting opening periods and closing periods of a pair of shutter glasses so that a shutter of the pair of shutter glasses is open and closed respectively during the opening period and the closing period based on the estimated crosstalk.
    Type: Application
    Filed: December 9, 2010
    Publication date: June 30, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hee-Jin CHOI, Jun-Pyo LEE, Jung-Won KIM, Kwang-Hoon LEE
  • Patent number: 7940241
    Abstract: A display apparatus includes a plurality of frame rate controllers that generate a motion interpolated intermediate image. The frame rate controllers exchange image information with adjacent frame rate controllers. According to the display apparatus, each frame rate controller displays the intermediate image on a corresponding display area based on the image information provided from the adjacent frame rate controller.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: May 10, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-Sung Bae, Jung-Hwan Cho, Bong-Hyun You, Jun-Pyo Lee, Jung-Won Kim, Sang-Soo Kim, Seon-Ki Kim, Hee-Jin Choi