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.

公开(公告)号：US11776484B2

公开(公告)日：2023-10-03

申请号：US17556064

申请日：2021-12-20

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyun Ho Lim ,  Hyun Ha Yang ,  Myeong Bin Lim

IPC: G09G3/3291

CPC classification number: G09G3/3291 ,  G09G2310/0272 ,  G09G2310/0291 ,  G09G2310/08 ,  G09G2320/0285 ,  G09G2320/0673 ,  G09G2330/021

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.

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：US11200852B2

公开(公告)日：2021-12-14

申请号：US16533484

申请日：2019-08-06

Applicant: Samsung Display Co., Ltd.

Inventor： Ok Kwon Shin ,  Bong Ho Bae ,  Chong Guk Lee ,  Myeong Bin Lim ,  Hyun Ho Lim ,  Se Hui Jang

IPC: G09G3/3275 ,  G09G3/3233 ,  G09G3/20 ,  G09G3/32

Abstract: Provided herein may be a display device, which may include a display panel including a pixel column having a first pixel and a second pixel, a first data line coupled to the first pixel, and a second data line coupled to the second pixel, a data driver configured to output a data signal for the pixel column to an output line, a signal distribution circuit configured to receive the data signal through the output line, and to alternately transmit the data signal to the first data line and to the second data line, and a signal transmission circuit coupled between the data driver and the output line, and configured to transmit the data signal to the output line during a first period and a second period, and to block transmission of the data signal during a third period that is between the first period and the second period.