Patents by Inventor Ju-Lin Huang

Ju-Lin Huang 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: 11917923
    Abstract: A magnetoresistive random access memory (MRAM) structure, including a substrate and multiple MRAM cells on the substrate, wherein the MRAM cells are arranged in a memory region adjacent to a logic region. An ultra low-k (ULK) layer covers the MRAM cells, wherein the surface portion of ultra low-k layer is doped with fluorine, and dents are formed on the surface of ultra low-k layer at the boundaries between the memory region and the logic region.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: February 27, 2024
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Hui-Lin Wang, Ching-Hua Hsu, Si-Han Tsai, Shun-Yu Huang, Chen-Yi Weng, Ju-Chun Fan, Che-Wei Chang, Yi-Yu Lin, Po-Kai Hsu, Jing-Yin Jhang, Ya-Jyuan Hung
  • Patent number: 11854471
    Abstract: The present disclosure provides a method for a display driver system and a display driver system.
    Type: Grant
    Filed: December 5, 2022
    Date of Patent: December 26, 2023
    Assignee: NOVATEK MICROELECTRONICS CORP.
    Inventors: Hsu-Chih Wei, Po-Hsiang Fang, Keko-Chun Liang, Che-Wei Yeh, Ju-Lin Huang
  • Patent number: 11823635
    Abstract: An LED backlight driver includes at least one driving chip configured to drive a backlight module. The at least one driving chip is disposed on at least one chip-on-film package, and not in direct contact with the backlight module to reduce heat transfer to the backlight module.
    Type: Grant
    Filed: September 6, 2021
    Date of Patent: November 21, 2023
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Chun-Fu Lin, Hsing-Kuo Chao, Jhih-Siou Cheng, Ju-Lin Huang, Wen-Hsin Cheng
  • Publication number: 20230306900
    Abstract: The present disclosure relates to a driver for driving a light emitting unit array of a display device, the driver including: a plurality of driving units, each of the plurality of driving units includes: a driving circuit configured to provide a driving current to a corresponding column of light emitting units in the light emitting unit array according to a pulse width modulation signal, during a turn-on period of a channel switch; a charge path circuit configured to be connected in parallel with the driving circuit, and to be turned on during the turn-on period of the channel switch to form a charge path; and a discharge path circuit configured to be connected in parallel with the driving circuit, and to be turned-on after the channel switch is turned off, to form a discharge path.
    Type: Application
    Filed: June 2, 2023
    Publication date: September 28, 2023
    Inventors: Yu-Sheng Ma, Jhih-Siou Cheng, Chun-Fu Lin, Jin-Yi Lin, Ju-Lin Huang
  • Publication number: 20230290715
    Abstract: A ball grid array (BGA) package for use in a touch panel controller includes a package substrate and a plurality of solder bumps. The plurality of solder bumps are disposed on the package substrate, arranged in a staggered pattern surrounding a hollow region on the package substrate, and coupled to electrodes of a touch panel via a multi-layer circuit board. The staggered pattern includes Ys1 top rows and Ys2 bottom rows, a minimum vertical distance between centers of two vertically adjacent solder bumps in the Ys1 top rows and the Ys2 bottom rows being referred to as an equivalent vertical pitch, and Ys1, Ys2 being integers exceeding 2. the hollow region has a minimum length defined by the minimum length=((Ys1?2)+(Ys2?2))*the equivalent vertical pitch.
    Type: Application
    Filed: November 20, 2022
    Publication date: September 14, 2023
    Applicant: NOVATEK Microelectronics Corp.
    Inventors: Tsung-Ling Li, Yung-Cheng Lin, Ju-Lin Huang
  • Patent number: 11682343
    Abstract: A display driver for driving a display device including a pixel array is provided. The display driver includes a plurality of driving channels. The driving channels is configured to output driving signals in a pulse width modulation manner to drive the pixel array to illuminate in a first frame period which is being divided into a plurality of subframe periods. A first driving channel of the plurality of driving channels outputs a first driving signal in a first subframe period combination. A second driving channel of the plurality of driving channels outputs a second driving signal in a second subframe period combination different than the first subframe period combination. Each of the first subframe period combination and the second subframe period combination comprises at least one subframe period of the first frame period.
    Type: Grant
    Filed: April 22, 2022
    Date of Patent: June 20, 2023
    Assignee: Novatek Microelectronics Corp.
    Inventors: Jhih-Siou Cheng, Chun-Fu Lin, Tung-Shuan Cheng, Po-Hsiang Fang, Ju-Lin Huang
  • Patent number: 11651729
    Abstract: The present disclosure relates to a driving method for a display device and a display device. The display device includes a display driver, the display driver includes a plurality of driving channels each of which drives corresponding display unit according to display data in a pulse width modulation manner within one frame period, the method comprises: selectively enabling, in each sub-frame subset among a plurality of different sub-frame subsets of the frame period, different channel subset among a plurality of channel subsets of the plurality of driving channels to drive corresponding display unit, wherein each channel subset of the plurality of channel subsets includes two or more driving channels among the plurality of driving channels.
    Type: Grant
    Filed: August 4, 2022
    Date of Patent: May 16, 2023
    Assignee: NOVATEK MICROELECTRONICS CORP.
    Inventors: Jhih-Siou Cheng, Chun-Fu Lin, Po-Hsiang Fang, Ju-Lin Huang
  • Patent number: 11521542
    Abstract: The present disclosure provides a method for a display driver system and a display driver system.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: December 6, 2022
    Assignee: NOVATEK MICROELECTRONICS CORP.
    Inventors: Hsu-Chih Wei, Po-Hsiang Fang, Keko-Chun Liang, Che-Wei Yeh, Ju-Lin Huang
  • Publication number: 20220375403
    Abstract: The present disclosure relates to a driving method for a display device and a display device. The display device includes a display driver, the display driver includes a plurality of driving channels each of which drives corresponding display unit according to display data in a pulse width modulation manner within one frame period, the method comprises: selectively enabling, in each sub-frame subset among a plurality of different sub-frame subsets of the frame period, different channel subset among a plurality of channel subsets of the plurality of driving channels to drive corresponding display unit, wherein each channel subset of the plurality of channel subsets includes two or more driving channels among the plurality of driving channels.
    Type: Application
    Filed: August 4, 2022
    Publication date: November 24, 2022
    Inventors: Jhih-Siou Cheng, Chun-Fu Lin, Po-Hsiang Fang, Ju-Lin Huang
  • Publication number: 20220343837
    Abstract: A display driver for driving a display device including a pixel array is provided. The display driver includes a plurality of driving channels. The driving channels is configured to output driving signals in a pulse width modulation manner to drive the pixel array to illuminate in a first frame period which is being divided into a plurality of subframe periods. A first driving channel of the plurality of driving channels outputs a first driving signal in a first subframe period combination. A second driving channel of the plurality of driving channels outputs a second driving signal in a second subframe period combination different than the first subframe period combination. Each of the first subframe period combination and the second subframe period combination comprises at least one subframe period of the first frame period.
    Type: Application
    Filed: April 22, 2022
    Publication date: October 27, 2022
    Applicant: Novatek Microelectronics Corp.
    Inventors: Jhih-Siou Cheng, Chun-Fu Lin, Tung-Shuan Cheng, Po-Hsiang Fang, Ju-Lin Huang
  • Patent number: 11430382
    Abstract: A LED driving apparatus with differential signal interfaces is introduced, including: N-stages LED drivers, wherein the first stage LED driver receives a first data packet differential signal and a first clock differential signal and outputs a second data packet differential signal and a second clock differential signal, the Mth stage LED driver receives a Mth data packet differential signal and a Mth clock differential signal and outputs a (M+1)th data packet differential signal and a (M+1)th clock differential signal.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: August 30, 2022
    Assignee: Novatek Microelectronics Corp.
    Inventors: Che-Wei Yeh, Keko-Chun Liang, Yu-Hsiang Wang, Po-Hsiang Fang, Ju-Lin Huang
  • Patent number: 11423831
    Abstract: The present disclosure relates to a driving method for a display device and a display device. The display device includes a display driver, the display driver includes a plurality of driving channels each of which drives corresponding display unit according to display data in a pulse width modulation manner within one frame period, the method comprises: selectively enabling, in each sub-frame subset among a plurality of different sub-frame subsets of the frame period, different channel subset among a plurality of channel subsets of the plurality of driving channels to drive corresponding display unit, wherein each channel subset of the plurality of channel subsets includes two or more driving channels among the plurality of driving channels.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: August 23, 2022
    Assignee: NOVATEK MICROELECTRONICS CORP.
    Inventors: Jhih-Siou Cheng, Chun-Fu Lin, Po-Hsiang Fang, Ju-Lin Huang
  • Patent number: 11386836
    Abstract: An amplifier for driving a display panel includes an input stage, a gain stage and an output stage. The gain stage is coupled to the input stage. The output stage, coupled to the gain stage, includes a first output driving circuit and a second output driving circuit. The first output driving circuit is operated in a first voltage domain. The second output driving circuit is operated in a second voltage domain different from the first voltage domain.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: July 12, 2022
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Jhih-Siou Cheng, Ju-Lin Huang
  • Patent number: 11367390
    Abstract: A display apparatus and a method for noise reduction are introduced. The method comprises steps of sensing a first pixel signal being superimposed by noises from a first pixel through a first sensing line in a first phase of a sensing operation and sensing a first noise signal from the first sensing line in a second phase of the sensing operation. The method further comprises steps of sensing a second noise signal from a second sensing line in the first phase of the sensing operation, and sensing a third noise signal from the second sensing line in the second phase of the sensing operation. The method further removes the noises that are superimposed to the first pixel signal according to a difference between the first pixel signal and the first noise signal and a difference between the second noise signal and the third noise signal to generate a denoised sensing value of the first pixel.
    Type: Grant
    Filed: June 2, 2019
    Date of Patent: June 21, 2022
    Assignee: Novatek Microelectronics Corp.
    Inventors: Keko-Chun Liang, Yu-Hsiang Wang, Jhih-Siou Cheng, Yi-Chuan Liu, Ju-Lin Huang
  • Publication number: 20220122552
    Abstract: An LED backlight driver includes at least one driving chip configured to drive a backlight module. The at least one driving chip is disposed on at least one chip-on-film package, and not in direct contact with the backlight module to reduce heat transfer to the backlight module.
    Type: Application
    Filed: September 6, 2021
    Publication date: April 21, 2022
    Applicant: NOVATEK Microelectronics Corp.
    Inventors: Chun-Fu Lin, Hsing-Kuo Chao, Jhih-Siou Cheng, Ju-Lin Huang, Wen-Hsin Cheng
  • Patent number: 11295671
    Abstract: A display driver and a display driving method are provided. The display driving is adapted for driving a display panel and sensing an electrical characteristic of the display panel. The display driver includes a first amplifier circuit. The first amplifier circuit is coupled to the display panel. The first amplifier circuit includes a first driving circuit, a first sensing circuit and a first operational amplifier. The first operational amplifier is coupled to the display panel through a first driving line and a first sensing line. The first driving circuit is configured to provide a first driving signal to the display panel through the first operational amplifier and the first driving line during a driving period. The first sensing circuit is configured to receive a first sensing signal from the display panel through the first operational amplifier and the first sensing line during a first sensing period.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: April 5, 2022
    Assignee: Novatek Microelectronics Corp.
    Inventors: Jhih-Siou Cheng, Po-Hsiang Fang, Chieh-An Lin, Keko-Chun Liang, Ju-Lin Huang
  • Patent number: 11296500
    Abstract: The present invention provides an output circuit with electrostatic discharge (ESD) protection in a semiconductor chip of a source driver. The source driver is configured to drive a display panel. The output circuit includes an output buffer, an output pad, a switch and a first resistor. The switch is coupled between the output buffer and the output pad, wherein data voltages for driving the display panel are transmitted from the output buffer to the output pad via the switch. The switch includes a first metal oxide semiconductor (MOS) transistor, which includes a first terminal coupled to the output pad, a bulk terminal and a gate terminal. The first resistor is coupled between the bulk terminal of the first MOS transistor and a first power supply terminal.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: April 5, 2022
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Jhih-Siou Cheng, Ju-Lin Huang, Chia-En Wu
  • Patent number: 11288989
    Abstract: A source driver and a calibration method thereof are provided. The source driver for driving and sensing a display panel of the disclosure includes a sensing circuit, an analog-to-digital converter circuit and a digital arithmetic circuit. The sensing circuit is configured to receive a reference signal through a sensing channel when the source driver is operated in a calibration mode. The analog-to-digital converter circuit is coupled to the sensing circuit, and configured to convert the reference signal to a digital reference signal. The digital arithmetic circuit is coupled to the analog-to-digital converter circuit, and configured to obtain a calibration parameter according to the digital reference signal. The source driver calibrates a sensing path for sensing a display panel according to the calibration parameter when the source driver is operated in a sensing mode.
    Type: Grant
    Filed: May 5, 2020
    Date of Patent: March 29, 2022
    Assignee: Novatek Microelectronics Corp.
    Inventors: Yi-Yang Tsai, Po-Hsiang Fang, Jhih-Siou Cheng, Ju-Lin Huang
  • Patent number: 11290061
    Abstract: An amplifier circuit including an input amplifier, an output amplifier and a diode device is provided. The output amplifier includes a PMOSFET and an NMOSFET. The PMOSFET has a gate electrode serving as a first input end and a drain coupled to an output end. The NMOSFET has a gate electrode serving as a second input end and a drain coupled to the output end. The output amplifier outputs an output voltage at the output end, and is coupled to the input amplifier via at least one of the first and second input ends. The diode device is coupled between the output end and the at least one of the first and second input ends of the output amplifier. When a voltage difference between the output end and the at least one of the first and second input ends of the output amplifier is greater than a barrier voltage of the diode device, the diode device is turned on, and an overshoot of the output voltage is reduced.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: March 29, 2022
    Assignee: Novatek Microelectronics Corp.
    Inventors: Chia-Wei Su, Ju-Lin Huang, Keko-Chun Liang
  • Publication number: 20220093037
    Abstract: The present disclosure relates to a driving method for a display device and a display device. The display device includes a display driver, the display driver includes a plurality of driving channels each of which drives corresponding display unit according to display data in a pulse width modulation manner within one frame period, the method comprises: selectively enabling, in each sub-frame subset among a plurality of different sub-frame subsets of the frame period, different channel subset among a plurality of channel subsets of the plurality of driving channels to drive corresponding display unit, wherein each channel subset of the plurality of channel subsets includes two or more driving channels among the plurality of driving channels.
    Type: Application
    Filed: July 30, 2021
    Publication date: March 24, 2022
    Inventors: Jhih-Siou Cheng, Chun-Fu Lin, Po-Hsiang Fang, Ju-Lin Huang