公开(公告)号：US11423847B2

公开(公告)日：2022-08-23

申请号：US16823184

申请日：2020-03-18

Applicant: Samsung Display Co., Ltd.

Inventor： Hyunho Lim ,  Bongho Bae ,  Ok-Kwon Shin ,  Hyun Ha Yang ,  Chongguk Lee ,  Myeong Bin Lim ,  Sehui Jang

IPC: G09G3/3291 ,  G09G3/36

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.

公开(公告)号：US20200234624A1

公开(公告)日：2020-07-23

申请号：US16741346

申请日：2020-01-13

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： HYUNHO LIM ,  Bongho Bae ,  Ok-Kwon Shin ,  Chongguk Lee ,  Myeong Bin Lim ,  Sehui Jang

IPC: G09G3/20

Abstract: A display apparatus includes a display panel, a gate driver, a data driver and a gamma reference voltage generator. The display panel is configured to display an image based on input image data. The gate driver is configured to output a gate signal to the display panel. The data driver is configured to output a data voltage to the display panel. The gamma reference voltage generator includes a plurality of gamma amplifiers having varied bias currents. The gamma reference voltage generator is configured to generate gamma reference voltages and to output the gamma reference voltages to the data driver.

公开(公告)号：US11069276B2

公开(公告)日：2021-07-20

申请号：US16741346

申请日：2020-01-13

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyunho Lim ,  Bongho Bae ,  Ok-Kwon Shin ,  Chongguk Lee ,  Myeong Bin Lim ,  Sehui Jang

IPC: G09G3/20

Abstract: A display apparatus includes a display panel, a gate driver, a data driver and a gamma reference voltage generator. The display panel is configured to display an image based on input image data. The gate driver is configured to output a gate signal to the display panel. The data driver is configured to output a data voltage to the display panel. The gamma reference voltage generator includes a plurality of gamma amplifiers having varied bias currents. The gamma reference voltage generator is configured to generate gamma reference voltages and to output the gamma reference voltages to the data driver.