Patents by Inventor Taiming Piao

Taiming Piao 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: 20250061854
    Abstract: An embodiment provides a data driver for a display and a sensing circuit thereof, and the sensing circuit comprises: an analog front end circuit which generates an input voltage; a sample-and-hold circuit which stores a first sampling voltage according to the input voltage and generates a second sampling voltage obtained by converting the first sampling voltage; and an amplifier circuit which generates a sensing voltage according to the second sampling voltage.
    Type: Application
    Filed: November 18, 2022
    Publication date: February 20, 2025
    Applicant: LX SEMICON CO., LTD.
    Inventors: Young Ho SHIN, Won KIM, Seong Geon KIM, Taiming PIAO, Byeon Cheol LEE
  • Patent number: 12131673
    Abstract: The present disclosure discloses a display driving circuit. The display driving circuit is configured to have a function of detecting a short of a data line occurring on a display panel.
    Type: Grant
    Filed: December 19, 2022
    Date of Patent: October 29, 2024
    Assignee: LX SEMICON CO., LTD.
    Inventors: Taiming Piao, Young Tae Kim, Won Kim
  • Patent number: 12131704
    Abstract: The present disclosure discloses a precharge circuit capable of compensating for a resistance deviation between channels so that sense lines of a display panel can be uniformly charged and a source driver including the same. The precharge circuit may include a voltage terminal configured to provide a reference voltage, a common line connected to the voltage terminal, and channel lines connected to the common line and configured to transfer, to respective sense lines of a display panel, the reference voltage transferred through the common line.
    Type: Grant
    Filed: December 7, 2021
    Date of Patent: October 29, 2024
    Assignee: LX SEMICON CO., LTD.
    Inventors: Young Bok Kim, Won Kim, Taiming Piao
  • Publication number: 20240284734
    Abstract: The driving device can include a plurality of pad regions, a plurality of switching regions, and a plurality of driving regions. The plurality of pad regions can include a plurality of terminals and be disposed along a plurality of side portions of the substrate. The plurality of switching regions can include a plurality of switches and be located farther from the plurality of side portions than the plurality of pad regions. The plurality of driving regions can be disposed adjacent to the central region of the substrate. The plurality of switching regions can be located between the plurality of pad regions and the plurality of driving regions.
    Type: Application
    Filed: February 22, 2024
    Publication date: August 22, 2024
    Applicant: LX SEMICON CO., LTD.
    Inventors: Seong Geon KIM, Yong Su KWON, Seong Yeon PARK, TAIMING PIAO, Byeon Cheol LEE
  • Patent number: 11961443
    Abstract: The present disclosure discloses a display driving apparatus. The display driving apparatus of the present disclosure may be configured to drive a source signal in a state optimized for a panel load of a display panel.
    Type: Grant
    Filed: December 19, 2022
    Date of Patent: April 16, 2024
    Assignee: LX SEMICON CO., LTD.
    Inventors: Dong Hun Lee, Won Kim, Young Tae Kim, Taiming Piao, Chang Gi Min
  • Patent number: 11830399
    Abstract: A multi-channel voltage sensing circuit for pixel compensation includes a plurality of channel circuits arranged for multiple channels; and a first dummy channel circuit and a second dummy channel circuit disposed among the plurality of channel circuits with some channel circuits interposed therebetween, wherein the first dummy channel circuit and the second dummy channel circuit receive a first reference voltage of a fixed level, and provide electrical coupling to adjacent channel circuits.
    Type: Grant
    Filed: January 31, 2022
    Date of Patent: November 28, 2023
    Assignee: LX SEMICON CO., LTD.
    Inventors: Taiming Piao, Won Kim, Seong Geon Kim, Young Ho Shin, Byeon Cheol Lee
  • Patent number: 11735093
    Abstract: A slew rate controller includes an amplifier configured to operate with a first driving voltage and a second driving voltage, and generate an output voltage by using an image data voltage inputted at a first time point; an output switch configured to apply the output voltage to an external panel load according to a first control signal at the first time point; a first switch connected between one end of the output switch and the amplifier; and a second switch connected between the other end of the output switch and the amplifier.
    Type: Grant
    Filed: October 12, 2022
    Date of Patent: August 22, 2023
    Assignee: LX SEMICON CO., LTD.
    Inventors: Young Tae Kim, Won Kim, Taiming Piao, Dong Hun Lee
  • Publication number: 20230215309
    Abstract: The present disclosure discloses a display driving circuit. The display driving circuit is configured to have a function of detecting a short of a data line occurring on a display panel.
    Type: Application
    Filed: December 19, 2022
    Publication date: July 6, 2023
    Applicant: LX Semicon Co., Ltd.
    Inventors: Taiming PIAO, Young Tae KIM, Won KIM
  • Publication number: 20230206805
    Abstract: The present disclosure discloses a display driving apparatus. The display driving apparatus of the present disclosure may be configured to drive a source signal in a state optimized for a panel load of a display panel.
    Type: Application
    Filed: December 19, 2022
    Publication date: June 29, 2023
    Applicant: LX Semicon Co., Ltd.
    Inventors: Dong Hun LEE, Won KIM, Young Tae KIM, Taiming PIAO, Chang Gi MIN
  • Patent number: 11657766
    Abstract: The present disclosure discloses a sensing circuit and a source driver including the same, capable of decreasing influence on the performance of an integrator according to a panel load and reducing a chip area by excluding a feedback capacitor of the integrator. The sensing circuit may convert an input current, received from a display panel, into an output current having linearity and an amount of current smaller than the input current.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: May 23, 2023
    Assignee: LX SEMICON CO., LTD.
    Inventors: Taiming Piao, Young Bok Kim, Won Kim, Byeon Cheol Lee
  • Publication number: 20230113898
    Abstract: A slew rate controller includes an amplifier configured to operate with a first driving voltage and a second driving voltage, and generate an output voltage by using an image data voltage inputted at a first time point; an output switch configured to apply the output voltage to an external panel load according to a first control signal at the first time point; a first switch connected between one end of the output switch and the amplifier; and a second switch connected between the other end of the output switch and the amplifier.
    Type: Application
    Filed: October 12, 2022
    Publication date: April 13, 2023
    Applicant: LX Semicon Co., Ltd.
    Inventors: Young Tae KIM, Won KIM, Taiming PIAO, Dong Hun LEE
  • Patent number: 11610540
    Abstract: A data driver, a multi-channel sensing circuit and a sensing method thereof are provided. A multi-channel sensing circuit, where a configuration of a sample/hold circuit part is simplified to decrease a circuit area, and a sensing method of the multi-channel sensing circuit are provided. The multi-channel sensing circuit may include a first sample/hold circuit sampling and outputting a first sensing voltage, a second sample/hold circuit sampling and outputting a second sensing voltage, a share sample/hold circuit sampling and outputting a reference voltage, and an amplification part differential-amplifying the first sensing voltage output from the first sample/hold circuit and the reference voltage output from the share sample/hold circuit and differential-amplifying the second sensing voltage output from the second sample/hold circuit and the reference voltage output from the share sample/hold circuit.
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: March 21, 2023
    Assignee: LX SEMICON CO., LTD.
    Inventors: Taiming Piao, Young Bok Kim, Won Kim, Byeon Cheol Lee
  • Patent number: 11610553
    Abstract: The present disclosure relates to a technology for adjusting differences among integrated circuits, that may occur in a pixel sensing, using bias voltages, and more particularly, a technology for adjusting a gain or an offset of each integrated circuit by adjusting a bias voltage.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: March 21, 2023
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Taiming Piao, Young Bok Kim, Won Kim, Young Ho Shin
  • Patent number: 11527193
    Abstract: The present disclosure discloses a display driving apparatus in which the consumption power of a chip is optimized through control for each output channel of the chip. The display driving apparatus includes a consumption current control circuit for each output channel. The consumption current control circuit is configured to selectively provide a control current having a high current amount in order to drive an output voltage for the output side of an output buffer in response to a change in the pattern having a great difference between an input voltage and an output voltage.
    Type: Grant
    Filed: July 23, 2021
    Date of Patent: December 13, 2022
    Assignee: Silicon Works CO., Ltd
    Inventors: Young Bok Kim, Taiming Piao
  • Patent number: 11488505
    Abstract: An embodiment is disclosed that makes it possible to reduce the area of a digital-to-analog converter circuit by interpolating one reference voltage and generating a plurality of gamma voltages.
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: November 1, 2022
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Taiming Piao, Young Bok Kim, Young Tae Kim, Won Kim
  • Publication number: 20220301495
    Abstract: A data driver, a multi-channel sensing circuit and a sensing method thereof are provided. A multi-channel sensing circuit, where a configuration of a sample/hold circuit part is simplified to decrease a circuit area, and a sensing method of the multi-channel sensing circuit are provided. The multi-channel sensing circuit may include a first sample/hold circuit sampling and outputting a first sensing voltage, a second sample/hold circuit sampling and outputting a second sensing voltage, a share sample/hold circuit sampling and outputting a reference voltage, and an amplification part differential-amplifying the first sensing voltage output from the first sample/hold circuit and the reference voltage output from the share sample/hold circuit and differential-amplifying the second sensing voltage output from the second sample/hold circuit and the reference voltage output from the share sample/hold circuit.
    Type: Application
    Filed: March 15, 2022
    Publication date: September 22, 2022
    Inventors: Taiming PIAO, Young Bok KIM, Won KIM, Byeon Cheol LEE
  • Publication number: 20220254289
    Abstract: A multi-channel voltage sensing circuit for pixel compensation includes a plurality of channel circuits arranged for multiple channels; and a first dummy channel circuit and a second dummy channel circuit disposed among the plurality of channel circuits with some channel circuits interposed therebetween, wherein the first dummy channel circuit and the second dummy channel circuit receive a first reference voltage of a fixed level, and provide electrical coupling to adjacent channel circuits.
    Type: Application
    Filed: January 31, 2022
    Publication date: August 11, 2022
    Applicant: LX Semicon Co., Ltd.
    Inventors: Taiming PIAO, Won KIM, Seong Geon KIM, Young Ho SHIN, Byeon Cheol LEE
  • Patent number: 11368152
    Abstract: The present disclosure discloses a source signal output circuit and an inverter thereof. The inverter is configured to provide a multiplexer with a control signal having a full range for selecting a source signal and to output the control signal having the full range by using elements operating in a low voltage range. Therefore, the present disclosure has an advantage in that it can fabricate a driving circuit having a small area at a low process cost.
    Type: Grant
    Filed: April 5, 2021
    Date of Patent: June 21, 2022
    Inventors: Young Tae Kim, Young Bok Kim, Taiming Piao, Dong Hun Lee
  • Publication number: 20220189411
    Abstract: The present disclosure discloses a precharge circuit capable of compensating for a resistance deviation between channels so that sense lines of a display panel can be uniformly charged and a source driver including the same. The precharge circuit may include a voltage terminal configured to provide a reference voltage, a common line connected to the voltage terminal, and channel lines connected to the common line and configured to transfer, to respective sense lines of a display panel, the reference voltage transferred through the common line.
    Type: Application
    Filed: December 7, 2021
    Publication date: June 16, 2022
    Applicant: LX Semicon Co., Ltd.
    Inventors: Young Bok KIM, Won KIM, Taiming PIAO
  • Publication number: 20220165219
    Abstract: The present disclosure discloses a sensing circuit and a source driver including the same, capable of decreasing influence on the performance of an integrator according to a panel load and reducing a chip area by excluding a feedback capacitor of the integrator. The sensing circuit may convert an input current, received from a display panel, into an output current having linearity and an amount of current smaller than the input current.
    Type: Application
    Filed: November 22, 2021
    Publication date: May 26, 2022
    Applicant: LX Semicon Co., Ltd.
    Inventors: Taiming PIAO, Young Bok KIM, Won KIM, Byeon Cheol LEE