Patents by Inventor Tae-Joon Kim

Tae-Joon 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).

  • Publication number: 20250130657
    Abstract: A display device includes: a first sensor driver connected to a first sensor unit including a first-analog-front end, a first analog-to-digital converter, and a digital signal processor; and a second sensor driver connected to a second sensor unit including a second-analog-front end, and a second analog-to-digital converter. In a first mode, the first-analog-front end and the first analog-to-digital converter generate first sensing information for the first sensor unit, the second sensor driver does not operate, and the digital signal processor processes the first sensing information based on a first setting value for the first sensor unit. In a second mode, the first-analog-front end and the first analog-to-digital converter do not operate, the second-analog-front end and the second analog-to-digital converter generate second sensing information for the second sensor unit, and the digital signal processor processes the second sensing information based on a second setting value for the second sensor unit.
    Type: Application
    Filed: May 13, 2024
    Publication date: April 24, 2025
    Inventors: Soo Won KIM, Hyun Jae LEE, Young Sik KIM, Tae Joon KIM
  • Patent number: 12260046
    Abstract: A driving circuit includes: a display driver to generate a horizontal synchronization signal and a vertical synchronization signal according to a first clock signal of a first oscillator; a sensor driver to generate a touch signal according to a second clock signal of a second oscillator; and a determination circuit to detect a cycle of at least one of the horizontal synchronization signal or the vertical synchronization signal according to the second clock signal, and output a detection signal when the cycle is out of a range. The determination circuit is a part of the display driver or the sensor driver.
    Type: Grant
    Filed: June 26, 2023
    Date of Patent: March 25, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jun Young Ko, Tae Hyeon Yang, Han Su Cho, Tae Joon Kim, Hyun Wook Cho, Jae Woo Choi
  • Publication number: 20250077034
    Abstract: A display device includes a plurality of touch cells, and a central area and an edge area. The plurality of touch cells is arranged in a first direction and a second direction crossing the first direction, and is located in the central area and the edge area. The edge area includes first to fourth sub-edge areas. Shapes of touch cells in the central area are different from shapes of touch cells in the edge area. Shapes of touch cells in the first and second sub-edge areas are different from shapes of touch cells in the third and fourth sub-edge areas.
    Type: Application
    Filed: April 17, 2024
    Publication date: March 6, 2025
    Inventors: Eung Kwan LEE, Tae Joon KIM, Ji Yeong LEE, Hyun Wook CHO, Jae Woo CHOI
  • Patent number: 12236048
    Abstract: A touch sensor includes first touch cells disposed in a first touch sensing area, the first touch cells each including a first touch pattern and a first dummy pattern, and second touch cells disposed in a second touch sensing area, the second touch cells each including a second touch pattern and a second dummy pattern. An area of a first dummy pattern area in which the first dummy pattern is disposed is greater than an area of a second dummy pattern area in which the second dummy pattern is disposed.
    Type: Grant
    Filed: January 2, 2024
    Date of Patent: February 25, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyung Bae Kim, Min Hong Kim, Sang Kook Kim, Tae Joon Kim, Jae Hyun Park, Ji Yeong Lee, Hyun Wook Cho
  • Patent number: 12223132
    Abstract: According to an embodiment of the disclosure, a display device includes a sensor driver receiving firmware from an host in which the firmware is stored, the sensor driver including a second memory storing the firmware supplied from the host and initialized when a reset signal is supplied from the host, and a sensing unit for supplying a recovery signal corresponding to an abnormal state of the sensor driver to the host while sensing at least one of an internal voltage and a clock signal of the sensor driver.
    Type: Grant
    Filed: June 19, 2023
    Date of Patent: February 11, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min Hong Kim, Tae Joon Kim, Jung Mok Park, Jin Woo Park, Hyun Wook Cho
  • Patent number: 12189893
    Abstract: A touch test device for a display device, includes a loading unit receiving a display device. The display device includes a touch sensing unit having driving electrodes and sensing electrodes. A touch driving circuit driving the driving electrodes and the sensing electrodes and detecting touch signal data for the driving electrodes, sensing signal data for the sensing electrodes, and touch data of touch nodes positioned at intersections between the driving electrodes and the sensing electrodes. A test processing circuit calculates parameter values inversely proportional to resistance deviations of the driving electrodes and the sensing electrodes, performs an arithmetic operation on the parameter values and the touch data of the touch nodes to provide corrected touch data, and detects defects in the driving electrodes and the sensing electrodes according to a result of comparing and analyzing the corrected touch data.
    Type: Grant
    Filed: August 29, 2023
    Date of Patent: January 7, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung Rok Lee, Jin Woo Park, Tae Joon Kim, Jung Mok Park, Il Ho Lee
  • Patent number: 12183228
    Abstract: An apparatus for inspecting a display device including a touch sensor may include: a power source generator configured to generate a pixel voltage of the display device; and a variable impedance circuit electrically connected to an output terminal of the power source generator, wherein the variable impedance circuit may include: a variable resistance circuit electrically connected to the power source generator and an output terminal of the variable impedance circuit, and including resistors connected in parallel with each other; and a variable capacitor circuit electrically connected to the power source generator and a ground voltage source.
    Type: Grant
    Filed: August 29, 2023
    Date of Patent: December 31, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jun Young Ko, Tae Joon Kim, Eun Sol Seo, Yu Jin Sin, Jun Seong Lee, Jae Woo Choi
  • Publication number: 20240404440
    Abstract: A display device includes a touch panel and a display panel. The touch panel outputs touch sensing signals. At least one of a plurality of touch sensing signals is converted from a time domain to a frequency domain, and then information on a thickness of a common electrode is detected based on a peak of the converted touch sensing signal. As a result, it is possible to inspect whether the common electrode is formed with a uniform thickness without destroying the display device.
    Type: Application
    Filed: August 14, 2024
    Publication date: December 5, 2024
    Inventors: Tae Hyeon YANG, Jun Young KO, Han Su CHO, Tae Joon KIM, Jae Woo CHOI
  • Patent number: 12142175
    Abstract: An apparatus for inspecting a display device including a touch sensor may include: a power source generator configured to generate a pixel voltage of the display device; and a variable impedance circuit electrically connected to an output terminal of the power source generator, wherein the variable impedance circuit may include: a variable resistance circuit electrically connected to the power source generator and an output terminal of the variable impedance circuit, and including resistors connected in parallel with each other; and a variable capacitor circuit electrically connected to the power source generator and a ground voltage source.
    Type: Grant
    Filed: August 29, 2023
    Date of Patent: November 12, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jun Young Ko, Tae Joon Kim, Eun Sol Seo, Yu Jin Sin, Jun Seong Lee, Jae Woo Choi
  • Patent number: 12105915
    Abstract: A display device includes a display unit including pixels. A sensor unit overlaps with the display unit and includes sensors. A sensor driver transmits a driving signal to the sensors, and receives sensing signals corresponding to the driving signal from the sensors. One sensing period includes a first sensing period and a second sensing period. The sensor driver transmits a first driving signal having a first frequency to the sensors in the first sensing period, and transmits a second driving signal having a second frequency different from the first frequency to the sensors in the second sensing period.
    Type: Grant
    Filed: July 27, 2022
    Date of Patent: October 1, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun Wook Cho, Min Hong Kim, Tae Joon Kim, Hyung Bae Kim, Jung Mok Park, Il Ho Lee, Jae Woo Choi
  • Patent number: 12087192
    Abstract: A display device includes a touch panel and a display panel. The touch panel outputs touch sensing signals. At least one of a plurality of touch sensing signals is converted from a time domain to a frequency domain, and then information on a thickness of a common electrode is detected based on a peak of the converted touch sensing signal. As a result, it is possible to inspect whether the common electrode is formed with a uniform thickness without destroying the display device.
    Type: Grant
    Filed: September 19, 2023
    Date of Patent: September 10, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Tae Hyeon Yang, Jun Young Ko, Han Su Cho, Tae Joon Kim, Jae Woo Choi
  • Publication number: 20240296763
    Abstract: A display device includes a touch panel and a display panel. The touch panel outputs touch sensing signals. At least one of a plurality of touch sensing signals is converted from a time domain to a frequency domain, and then information on a thickness of a common electrode is detected based on a peak of the converted touch sensing signal. As a result, it is possible to inspect whether the common electrode is formed with a uniform thickness without destroying the display device.
    Type: Application
    Filed: September 19, 2023
    Publication date: September 5, 2024
    Inventors: Tae Hyeon YANG, Jun Young KO, Han Su CHO, Tae Joon KIM, Jae Woo CHOI
  • Publication number: 20240264695
    Abstract: A touch sensor may include a sensing area and a non-sensing area. The touch sensor may include: a sensor base layer; a first sensing electrode and a second sensing electrode each disposed on the sensor base layer in the sensing area; a first sensing line and a second sensing line each disposed on the sensor base layer, the first sensing line being electrically connected to the first sensing electrode, the second sensing line being electrically connected to the second sensing electrode; and an auxiliary line disposed on the sensor base layer. The second sensing line may include a 2-1-th sensing line disposed in the sensing area, and a 2-2-th sensing line disposed in the non-sensing area. The auxiliary line may overlap the second sensing electrode in a plan view, enclose at least a portion of the 2-1-th sensing line, and be electrically connected to the second sensing electrode.
    Type: Application
    Filed: January 8, 2024
    Publication date: August 8, 2024
    Inventors: Jae Woo CHOI, Jun Young KO, Tae Joon KIM, Gyeong Nam BANG, Hye Yun HAN
  • Publication number: 20240251607
    Abstract: A display device according to an embodiment includes: a substrate; a transistor that is disposed on the substrate; a light emitting diode that is disposed on the substrate, and connected to the transistor; and a passivation layer that is disposed between the transistor and the light emitting diode, wherein a surface step of the passivation layer is within a range of and including 1 nm to 30 nm.
    Type: Application
    Filed: April 5, 2024
    Publication date: July 25, 2024
    Inventors: Byoung Kwon CHOO, Seung Bae KANG, Bong Gu KANG, Tae Joon KIM, Jeong Min PARK, Joon-Hwa BAE, Hee Sung YANG, Woo Jin CHO
  • Publication number: 20240241600
    Abstract: A touch test device for a display device, includes a loading unit receiving a display device. The display device includes a touch sensing unit having driving electrodes and sensing electrodes. A touch driving circuit driving the driving electrodes and the sensing electrodes and detecting touch signal data for the driving electrodes, sensing signal data for the sensing electrodes, and touch data of touch nodes positioned at intersections between the driving electrodes and the sensing electrodes. A test processing circuit calculates parameter values inversely proportional to resistance deviations of the driving electrodes and the sensing electrodes, performs an arithmetic operation on the parameter values and the touch data of the touch nodes to provide corrected touch data, and detects defects in the driving electrodes and the sensing electrodes according to a result of comparing and analyzing the corrected touch data.
    Type: Application
    Filed: August 29, 2023
    Publication date: July 18, 2024
    Inventors: Seung Rok LEE, Jin Woo PARK, Tae Joon KIM, Jung Mok PARK, II Ho LEE
  • Patent number: 12033276
    Abstract: Disclosed herein are a learning-based three-dimensional (3D) model creation apparatus and method. A method for operating a learning-based 3D model creation apparatus includes generating multi-view feature images using supervised learning, creating a three-dimensional (3D) mesh model using a point cloud corresponding to the multi-view feature images and a feature image representing internal shape information, generating a texture map by projecting the 3D mesh model into three viewpoint images that are input, and creating a 3D model using the texture map.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: July 9, 2024
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Seong-Jae Lim, Tae-Joon Kim, Seung-Uk Yoon, Seung-Wook Lee, Bon-Woo Hwang, Jin-Sung Choi
  • Publication number: 20240220044
    Abstract: According to an embodiment of the disclosure, a display device includes a sensor driver receiving firmware from an host in which the firmware is stored, the sensor driver including a second memory storing the firmware supplied from the host and initialized when a reset signal is supplied from the host, and a sensing unit for supplying a recovery signal corresponding to an abnormal state of the sensor driver to the host while sensing at least one of an internal voltage and a clock signal of the sensor driver.
    Type: Application
    Filed: June 19, 2023
    Publication date: July 4, 2024
    Inventors: Min Hong KIM, Tae Joon KIM, Jung Mok PARK, Jin Woo PARK, Hyun Wook CHO
  • Publication number: 20240203027
    Abstract: A device and a method for generating dynamic texture map for 3 dimensional digital human are disclosed. The method comprises generating high-quality images from low-quality images including a low-quality object; generating partial high-quality images including a high-quality object by replacing the low-quality object within the low-quality images with the high-quality object within the high-quality images; and generating a high-quality texture map for a 3D model corresponding to the high-quality object using the partial high-quality images.
    Type: Application
    Filed: December 18, 2023
    Publication date: June 20, 2024
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Seung Uk YOON, Ki Nam KIM, Tae Joon KIM, Seung Wook LEE, Bon Woo HWANG
  • Patent number: 12014566
    Abstract: Provided is a fingerprint authentication device comprising a biometric sensor that senses biometric information to generate a sensing signal; an image processor that extracts a calibration function based on calibration data and generates a fingerprint image based on the calibration function and the sensing signal; and an authenticator that performs fingerprint authentication by comparing the fingerprint image and registered fingerprint information. The calibration data includes information on a calibration coefficient of the calibration function.
    Type: Grant
    Filed: April 7, 2023
    Date of Patent: June 18, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kee Yong Kim, Jung Hun Sin, Young Sik Kim, Tae Joon Kim, Hee Woong Park, Sang Wook Yoo
  • Publication number: 20240193845
    Abstract: Provided is a rendering method and a device for improving realism of a rendered image. The method includes receiving training image data including a real image, generating a rendering simulation image using the training image data, acquiring background feature information by separating foreground and background areas on the basis of the rendering simulation image or the training image data, acquiring latent feature information required for generating a realistic image on the basis of the rendering simulation image, and generating a realistic image on the basis of the latent feature information and the background feature information.
    Type: Application
    Filed: July 31, 2023
    Publication date: June 13, 2024
    Inventors: Bon Woo HWANG, Kinam KIM, Tae-Joon KIM, Seung Uk YOON, Seung Wook LEE