公开(公告)号：US20230222982A1

公开(公告)日：2023-07-13

申请号：US17950228

申请日：2022-09-22

Applicant: Samsung Display Co., Ltd.

Inventor： TAEHYEONG AN ,  JINPIL KIM ,  JOON-CHUL GOH ,  DONGJOON KWAG ,  JAESUNG BAE

IPC: G09G3/3275 ,  G09G3/3266

CPC classification number: G09G3/3275 ,  G09G3/3266 ,  G09G2310/027 ,  G09G2330/021

Abstract: An electronic device is disclosed that includes a display panel, a data driving circuit, a scan driving circuit, and a driving controller. The driving controller generates image data based on a received image signal. The driving controller includes a minimum emission gray level determining unit that determines a gray level of the image signal, a pattern determining unit that determines a dither pattern of the image signal, a driving frequency sensing unit that determines a driving frequency of the image signal, and a data compensation unit that compensates for the image data based on the gray level and at least one of the dither pattern and the driving frequency.

公开(公告)号：US20230117828A1

公开(公告)日：2023-04-20

申请号：US17863083

申请日：2022-07-12

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： SEOKHA HONG ,  JOON-CHUL GOH ,  DONGJOON KWAG ,  JAESUNG BAE ,  YOUNG-SOO HWANG

IPC: G09G3/20

Abstract: A driving controller includes: a grayscale determiner, which determines a current grayscale of input image data, a deterioration time determiner, which determines a first deterioration time for the current grayscale corresponding to an accumulated deterioration degree, a current deterioration degree calculator, which calculates a second deterioration time by summing the first deterioration time and a calculation period, and calculates a current deterioration degree for the current grayscale according to the second deterioration time, and an image compensator, which compensates the input image data based on the current deterioration degree.

公开(公告)号：US20230128265A1

公开(公告)日：2023-04-27

申请号：US17900137

申请日：2022-08-31

Applicant: Samsung Display Co., Ltd.

Inventor： YOUNG-SOO HWANG ,  JOON-CHUL GOH ,  DONGJOON KWAG ,  HYUNGJIN KIM ,  JI-EUN PARK ,  JAESUNG BAE ,  SEOKHA HONG

IPC: G09G3/32

Abstract: A display device includes a degradation compensator, a controller, a data driver, and a display panel. The degradation compensator generates a first fitting function and a second fitting function based on image data, generates a compensation function through a harmonic mean of the first and second fitting functions, and generates a compensation value based on the compensation function. The controller receives the compensation value, and generates input image data to which the compensation value is applied. The data driver receives the input image data to which the compensation value is applied, and converts the input image data into a data voltage. The display panel includes pixels, in which each of the pixels includes a pixel circuit which receives the data voltage and a light-emitting element electrically connected to the pixel circuit.