Patents by Inventor Hyun Ha YANG

Hyun Ha YANG 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).

  • Display device
    Patent number: 11776484
    Abstract: A display device of the invention includes a pixel unit including first pixels which display a first color; and a data driver which supplies first data voltages to the first pixels. The data driver includes: a first master gamma block including first master amplifiers which generate first reference gamma voltages; a first slave gamma block which generates first gamma voltages by dividing the first reference gamma voltages; and a first decoder which provides some of the first gamma voltages as the first data voltages, and each of the first master amplifiers is enabled or disabled based on a maximum luminance of the pixel unit.
    Type: Grant
    Filed: December 20, 2021
    Date of Patent: October 3, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyun Ho Lim, Hyun Ha Yang, Myeong Bin Lim
  • DISPLAY DEVICE
    Publication number: 20220328012
    Abstract: A display device of the invention includes a pixel unit including first pixels which display a first color; and a data driver which supplies first data voltages to the first pixels. The data driver includes: a first master gamma block including first master amplifiers which generate first reference gamma voltages; a first slave gamma block which generates first gamma voltages by dividing the first reference gamma voltages; and a first decoder which provides some of the first gamma voltages as the first data voltages, and each of the first master amplifiers is enabled or disabled based on a maximum luminance of the pixel unit.
    Type: Application
    Filed: December 20, 2021
    Publication date: October 13, 2022
    Inventors: Hyun Ho LIM, Hyun Ha YANG, Myeong Bin LIM
  • Display device and method of operating a display device
    Patent number: 11423847
    Abstract: A display device includes: a display panel including a plurality of pixels; a power management circuit configured to generate an analog power supply voltage; and a data driver configured to provide a pre-emphasis voltage and a data voltage to the plurality of pixels based on the analog power supply voltage, wherein the display device is configured to adjust a voltage level of the pre-emphasis voltage according to a distance from the data driver to each of the plurality of pixels to which the pre-emphasis voltage is applied, and wherein the display device is configured to adjust a voltage level of the analog power supply voltage according to the adjusted voltage level of the pre-emphasis voltage.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: August 23, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyunho Lim, Bongho Bae, Ok-Kwon Shin, Hyun Ha Yang, Chongguk Lee, Myeong Bin Lim, Sehui Jang
  • DISPLAY DEVICE AND METHOD OF OPERATING A DISPLAY DEVICE
    Publication number: 20200394966
    Abstract: A display device includes: a display panel including a plurality of pixels; a power management circuit configured to generate an analog power supply voltage; and a data driver configured to provide a pre-emphasis voltage and a data voltage to the plurality of pixels based on the analog power supply voltage, wherein the display device is configured to adjust a voltage level of the pre-emphasis voltage according to a distance from the data driver to each of the plurality of pixels to which the pre-emphasis voltage is applied, and wherein the display device is configured to adjust a voltage level of the analog power supply voltage according to the adjusted voltage level of the pre-emphasis voltage.
    Type: Application
    Filed: March 18, 2020
    Publication date: December 17, 2020
    Inventors: Hyunho LIM, Bongho BAE, Ok-Kwon SHIN, Hyun Ha YANG, Chongguk LEE, Myeong Bin LIM, Sehui JANG