公开(公告)号：US20210350751A1

公开(公告)日：2021-11-11

申请号：US17307004

申请日：2021-05-04

Applicant: Samsung Display Co., Ltd.

Inventor： JAEHOON LEE ,  DEOKHO KANG ,  JONG WOOK KIM ,  YOUNGWOON CHOI

IPC: G09G3/3275

Abstract: A display device includes a display panel including a plurality of pixels, an image data corrector configured to generate a corrected image data by adjusting an image data and a data driver providing data signals to the plurality of pixels based on the corrected image data. The image data corrector divides the display panel into a plurality of unit areas, and adjust the image data for a unit area among the plurality of unit areas by using a full image load for the entire display panel, a first image load for the unit area, and a second image load for peripheral unit areas surrounding the unit area among the plurality of unit areas.

公开(公告)号：US20250087141A1

公开(公告)日：2025-03-13

申请号：US18957823

申请日：2024-11-24

Applicant: Samsung Display Co., LTD.

Inventor： JOON HUH ,  SANGHYUN KANG ,  SANG-MYOUNG LEE ,  JAEHOON LEE ,  JOOSUN YOON

IPC: G09G3/32

Abstract: A display device includes: a memory, a driving controller, a light emitting element, a first transistor including a first electrode, a second electrode, and a gate electrode for receiving a data signal, a second transistor connected between a first driving voltage line and the first electrode of the first transistor and receiving a first emission signal, and a third transistor connected between the second electrode of the first transistor and the light emitting element and receiving a second emission signal. The first emission signal includes a compensation period and an emission period, and the memory stores instructions that, when executed by the driving controller, cause the driving controller to determine a compensation time of the compensation period depending on target luminance.

公开(公告)号：US20230368732A1

公开(公告)日：2023-11-16

申请号：US18125855

申请日：2023-03-24

Applicant: Samsung Display Co., Ltd.

Inventor： JAEHOON LEE ,  TAEHYEONG AN

IPC: G09G3/3233 ,  G09G3/20

CPC classification number: G09G3/3233 ,  G09G3/2096 ,  G09G3/2007 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0413 ,  G09G2360/16 ,  G09G2310/08 ,  G09G2320/0693

Abstract: A display device is disclosed that includes a display panel which includes a pixel, a driving controller which receives an input image signal and outputs an output image signal, and a data driving circuit which provides a data signal corresponding to the output image signal to the pixel. The pixel includes a light emitting device and a first transistor electrically connected to the light emitting device. The driving controller includes an initial threshold voltage map that stores an initial threshold voltage of the first transistor, a delta threshold voltage calculator that calculates a delta threshold voltage of the first transistor over an operating time based on the initial threshold voltage, a weight calculator that calculates a weight based on the initial threshold voltage and the delta threshold voltage, and a compensator that receives the input image signal and outputs an output image signal obtained by compensating for a threshold voltage of the first transistor based on the weight.

公开(公告)号：US20230092609A1

公开(公告)日：2023-03-23

申请号：US18051394

申请日：2022-10-31

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： JAEHOON LEE ,  BYOUNGKWAN AN

IPC: G09G3/3233 ,  G09G3/20 ,  G09G3/3291

Abstract: A display device includes a display panel including a plurality of pixels, a sensing circuit to measure a sensing current value of each of the pixels during a frame period, wherein the frame period includes an active period and a blank period following the active period, and a driving controller to calculate a deterioration weight based on the sensing current value and a reference current value, and to generate output image data by applying the deterioration weight to input image data.

公开(公告)号：US20220036834A1

公开(公告)日：2022-02-03

申请号：US17443606

申请日：2021-07-27

Applicant: SAMSUNG DISPLAY CO,. LTD.

Inventor： SANGMYEON HAN ,  SEUNGHO PARK ,  BYOUNGKWAN AN ,  JAEHOON LEE

IPC: G09G3/3291 ,  H01L27/32

Abstract: A display apparatus includes a display panel, a driving controller and a data driver. The display panel includes a pixel. The driving controller generates an age compensation value using a sensed age generated based on sensing data of the pixel and an accumulated age generated based on accumulated grayscale values of input image data, generates a final age based on the age compensation value, and compensates a grayscale value of the input image data based on a final age to generate a data signal. The data driver converts the data signal to a data voltage and outputs the data voltage to the display panel.