Patents by Inventor Yu Jin Park

Yu Jin Park 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: 20240244969
    Abstract: An organic light emitting diode (OLED) and an organic light emitting device comprising the OLED are described. The OLED can comprise a first electrode; a second electrode facing the first electrode; and a first emitting part (including a first blue emitting layer and a second blue emitting layer), which is positioned between the first and second electrode. The second blue emitting layer is positioned between the first blue emitting layer and the second electrode and contacting the first blue emitting layer. The first blue emitting layer includes a first host and a first dopant, and the second blue emitting layer includes a second host and a second dopant, wherein the first host is a pyrene derivative, and the second host is an anthracene derivative. An organic light emitting device can include the OLED, and can be a display device or a lighting device.
    Type: Application
    Filed: August 8, 2023
    Publication date: July 18, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: Ju-Hyuk KWON, Chun-Ki KIM, Yu-Jeong LEE, Eun-Jung PARK, Jang-Dae YOUN, Hyun-Jin CHO, Jun-Su HA
  • Publication number: 20240214705
    Abstract: According to the present disclosure, an image sensor includes a pixel including a floating diffusion (FD) node having a first capacitance in a first mode and a second capacitance that is less than the first capacitance in a second mode, an analog-to-digital converter (ADC) outputting a pixel value based on a ramp voltage and a pixel voltage output from the pixel, and a ramp voltage generator controlling the ramp voltage based on a difference between a first pixel value output from the ADC in the first mode and a second pixel value output from the ADC in the second mode.
    Type: Application
    Filed: June 23, 2023
    Publication date: June 27, 2024
    Applicant: SK hynix Inc.
    Inventors: Yu Jin PARK, Soo Hwan KIM, Min Kyu KIM, Kang Bong SEO
  • Publication number: 20240179433
    Abstract: Disclosed is an image sensing device including a first clock distributor suitable for receiving a first input clock signal through a first input terminal, and outputting a plurality of first output clock signals through a plurality of first output terminals, and a first conductive line coupled in common to the plurality of first output terminals.
    Type: Application
    Filed: February 5, 2024
    Publication date: May 30, 2024
    Inventors: Jeong Eun SONG, Min Seok SHIN, Yu Jin PARK, Sung Uk SEO, Sun Young LEE
  • Publication number: 20240147098
    Abstract: A color matching circuit of an image sensor includes a receiving end configured to receive an analog pixel signal. The color matching circuit also includes a path controller including a first switch set configured to control current paths between a common node coupled to the receiving end and power sources and a second switch set configured to control signal paths between the common node and analog-to-digital converters, the path controller being configured to determine on-off states of switches included in the first switch set and the second switch set based on a color corresponding to the analog pixel signal. The path controller transfers the analog pixel signal to a target analog-to-digital converter determined depending on the on-off states of the switches, among the analog-to-digital converters.
    Type: Application
    Filed: March 22, 2023
    Publication date: May 2, 2024
    Applicant: SK hynix Inc.
    Inventors: Han Sol PARK, Yu Jin PARK, Soo Hwan KIM, Seung Hwan LEE, Ji Ho LEE
  • Publication number: 20240129648
    Abstract: An image sensing device includes: a control circuit coupled between an output terminal of a pixel signal and a high voltage terminal, and configured to generate a control voltage corresponding to a voltage level of the pixel signal; and a current supplying circuit coupled between the output terminal and the high voltage terminal, and configured to supply a pre-charge current, which is configured to be adaptively adjusted according to the voltage level of the pixel signal, to the output terminal based on the control voltage.
    Type: Application
    Filed: December 21, 2023
    Publication date: April 18, 2024
    Inventors: Yu Jin PARK, Nam Ryeol KIM, Kang Bong SEO, Jeong Eun SONG, Jung Soon SHIN, Seung Hwan LEE
  • Patent number: 11950008
    Abstract: Disclosed is an image sensing device including a first clock distributor suitable for receiving a first input dock signal through a first input terminal, and outputting a plurality of first output clock signals through a plurality of first output terminals, and a first conductive line coupled in common to the plurality of first output terminals.
    Type: Grant
    Filed: April 5, 2021
    Date of Patent: April 2, 2024
    Assignee: SK hynix Inc.
    Inventors: Jeong Eun Song, Min Seok Shin, Yu Jin Park, Sung Uk Seo, Sun Young Lee
  • Publication number: 20240107193
    Abstract: Disclosed is an image sensor including a buffer circuit suitable for generating, based on at least one first signal, at least one second signal controlled during each of settling and comparison periods, a comparison circuit suitable for using an operating current having a relatively high level during the settling period and a relatively low level during the comparison period based on the second signal, and comparing a pixel signal with a ramp signal during the comparison period to generate a comparison signal.
    Type: Application
    Filed: April 4, 2023
    Publication date: March 28, 2024
    Inventors: Yu Jin PARK, Jeong Eun SONG
  • Patent number: 11895418
    Abstract: An image sensing device includes: a control circuit coupled between an output terminal of a pixel signal and a high voltage terminal, and configured to generate a control voltage corresponding to a voltage level of the pixel signal; and a current supplying circuit coupled between the output terminal and the high voltage terminal, and configured to supply a pre-charge current, which is configured to be adaptively adjusted according to the voltage level of the pixel signal, to the output terminal based on the control voltage.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: February 6, 2024
    Assignee: SK hynix Inc.
    Inventors: Yu Jin Park, Nam Ryeol Kim, Kang Bong Seo, Jeong Eun Song, Jung Soon Shin, Seung Hwan Lee
  • Publication number: 20230421926
    Abstract: The present technology relates to an image sensor. The image sensor according to an embodiment may include a pixel array in which a plurality of pixels are connected through common lines, an internal amplifier configured to amplify a signal of a target pixel selected from among the plurality of pixels, switches configured to control a connection between the target pixel and floating diffusion nodes of candidate pixels having the same column address as the target pixel among the plurality of pixels, and a controller configured to output control signals for controlling the switches.
    Type: Application
    Filed: November 8, 2022
    Publication date: December 28, 2023
    Applicant: SK hynix Inc.
    Inventors: Yu Jin PARK, Han Sol PARK
  • Patent number: 11842424
    Abstract: Disclosed is an image sensing device including a plurality of current cells whose total number to be used is adjusted based on a plurality of enable signals, and which are sequentially controlled based on a reset signal and a plurality of selection signals; a current-voltage conversion circuit suitable for converting a plurality of unit currents, which are supplied from current cells used among the plurality of current cells, into a ramp signal; and a first control circuit suitable for generating the plurality of enable signals based on a maximum conversion code value corresponding to a slope of the ramp signal.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: December 12, 2023
    Assignee: SK hynix Inc.
    Inventors: Jeong Eun Song, Yu Jin Park, Min Seok Shin
  • Publication number: 20230326891
    Abstract: The present disclosure provides a semiconductor memory device. The semiconductor memory device includes a peripheral circuit structure on a semiconductor substrate, a conductive line connected to the peripheral circuit structure, a peripheral circuit side bonding conductive pattern connected to the conductive line, a peripheral circuit side auxiliary bonding conductive pattern spaced apart from the peripheral circuit side bonding conductive pattern, a cell array side bonding conductive pattern contacting the peripheral circuit side bonding conductive pattern, a cell array side auxiliary bonding conductive pattern contacting the peripheral circuit side auxiliary bonding conductive pattern, and a memory cell array connected to the cell array side bonding conductive pattern.
    Type: Application
    Filed: September 23, 2022
    Publication date: October 12, 2023
    Applicant: SK hynix Inc.
    Inventors: Yu Jin PARK, Nam Jae LEE, Eun Seok CHOI
  • Publication number: 20230320391
    Abstract: Provided is a scorched rice snack including: a scorched rice base composed of brown rice; and a mixture including sugar cooled after mixing and heating 5 to 10 g weight of sodium bicarbonate and 0.25 to 0.5 g weight of corn starch, based on 100 g weight of liquefied sugar with respect to the liquefied sugar containing glucose and fructose, wherein the cooled mixture is cut into chips in a planarized state, arranged at regular intervals on the scorched rise base, further heated, and then cooled.
    Type: Application
    Filed: April 7, 2022
    Publication date: October 12, 2023
    Inventor: Yu Jin PARK
  • Patent number: 11750933
    Abstract: Disclosed is an image sensing device including a first pixel group including at least one first half-shading pixel and at least one first normal pixel, and an image processor suitable for using a first pixel signal, which is generated from the first half-shading pixel during a first period, as phase information, and using a first pixel signal, which is generated from the first half-shading pixel during a second period, as dynamic range information.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: September 5, 2023
    Assignee: SK hynix Inc.
    Inventors: Yu Jin Park, Jae Hyun Im, Nam Ryeol Kim, Tae Hyun Kim, Seong Hee Park, Kang Bong Seo, Jung Soon Shin
  • Patent number: 11613427
    Abstract: The present invention relates to a horizontal-flow-type apparatus for automatically transporting reagent cartridges. The apparatus includes: a magazine (110) in which a plurality of reagent cartridges (1) is stacked; a conveyer belt (120) having a plurality of separating projections (121) arranged in a conveying direction to horizontally separately convey the reagent cartridges (1); a driving motor (130) for driving the conveyer belt (120); a feeding unit (140) for feeding the reagent cartridges (1) stacked in the magazine (110) onto the conveyer belt (120); an examining unit (150) disposed over the front end of the conveyer belt (120) to examine the reagent cartridges (1); and reagent cartridge aligning members (161, 162) disposed in the conveying line of the conveyer belt (120), opposite to the examining unit (150), to align the reagent cartridges (1) in position.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: March 28, 2023
    Assignee: BODITECH MED INC.
    Inventors: Byeong Chul Kim, Young Haeng Lee, Kyong Hwa Chong, Min Hwan Lee, Yu Jin Park
  • Patent number: 11611717
    Abstract: An image sensing device includes at least one unit pixel including a plurality of pixels for generating a plurality of pixel signals based on a plurality of control signals having different phases, and an equalizing circuit suitable for equalizing noise that occurs in the plurality of pixels during a reset operation on the unit pixel.
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: March 21, 2023
    Assignee: SK hynix Inc.
    Inventors: Yu Jin Park, Jeong Eun Song, Kang Bong Seo, Min Seok Shin, Jae Hyung Jang
  • Patent number: 11587961
    Abstract: An image sensor is disclosed, which relates to technology for detecting the distance to a target object. The image sensor includes a first tap configured to capture and accumulate signal carriers, and a second tap spaced apart a set distance from the first tap. The first tap and the second tap are disposed in a diagonal direction at opposite vertex regions of a unit pixel.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: February 21, 2023
    Assignee: SK hynix Inc.
    Inventors: Yu Jin Park, Kang Bong Seo, Nam Ryeol Kim, Jung Soon Shin
  • Patent number: 11570386
    Abstract: Disclosed is an image sensing device and an operating method thereof, and the image sensing device may include a first unit pixel circuit disposed in a first row, including a first floating diffusion node, and suitable for outputting a first pixel signal through a column line, a second unit pixel circuit disposed in a second row, including a second floating diffusion node, and suitable for outputting a second pixel signal through the column line, and a first coupling circuit suitable for selectively coupling the first floating diffusion node to the second floating diffusion node based on a first mode control signal.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: January 31, 2023
    Assignee: SK hynix Inc.
    Inventors: Jung Soon Shin, Nam Ryeol Kim, Yu Jin Park, Kang Bong Seo
  • Patent number: 11502697
    Abstract: An analog-to-digital converter circuit includes: a first operation amplifier suitable for comparing a ramp voltage and a voltage to be converted so as to produce an amplification result and outputting the amplification result; a second operation amplifier suitable for comparing the amplification result transferred to a first input terminal with a reference voltage transferred to a second input terminal so as to produce a comparison result and outputting the comparison result; a leakage current measurer suitable for measuring a leakage current to the first input terminal; and a leakage current generator suitable for causing a current of the same amount as that of the leakage current measured by the leakage current measurer to flow to the second input terminal.
    Type: Grant
    Filed: January 7, 2021
    Date of Patent: November 15, 2022
    Assignee: SK hynix Inc.
    Inventors: Sung Uk Seo, Han Sang Kim, Yu Jin Park, Jeong Eun Song, Min Seok Shin
  • Patent number: 11477408
    Abstract: An image sensor including a pixel of a first tap. a pixel of a second tap. an operational amplifier configured to perform an auto zeroing operation with a pixel signal of the pixel of the second tap applied, and perform an operation for comparison between a ramp voltage and a signal output from the pixel of the first tap, with a pixel signal of the pixel of the first tap applied, and a counter circuit configured to generate a digital code in response to an output of the operational amplifier.
    Type: Grant
    Filed: April 8, 2021
    Date of Patent: October 18, 2022
    Assignee: SK hynix Inc.
    Inventors: Jeong Eun Song, Yu Jin Park, Sung Uk Seo, Min Seok Shin
  • Publication number: 20220329746
    Abstract: An image sensing device includes a first sampling circuit suitable for sampling a reference ramp signal as a ramp signal; a switching circuit suitable for sequentially outputting first and second pixel signals to a common node based on first and second control signals; a second sampling circuit suitable for sampling the first and second pixel signals, which are sequentially outputted through the common node, as a measurement signal; a comparison circuit suitable for comparing the ramp signal with the measurement signal and generating a comparison signal corresponding to a comparison result; and a count circuit suitable for generating a count signal, which corresponds to a voltage level of the measurement signal, based on the comparison signal and a clock signal.
    Type: Application
    Filed: November 26, 2021
    Publication date: October 13, 2022
    Inventors: Jeong Eun SONG, Oh Jun KWON, Yu Jin PARK, Sung Uk SEO, Min Seok SHIN, Sun Young LEE