公开(公告)号：US20220059037A1

公开(公告)日：2022-02-24

申请号：US17223282

申请日：2021-04-06

Applicant: Samsung Display Co., Ltd.

Inventor： MIN-SEOK BAE

IPC: G09G3/3291 ,  H01L27/32

Abstract: A display apparatus includes a first compensator, a second compensator and a display panel including pixels. The first compensator generates a first compensation coefficient based on sensing data of a pixel of the pixels for a first grayscale value, generates a second compensation coefficient based on camera imaging data for a second grayscale value greater than the first grayscale value and compensates image data based on the first compensation coefficient and the second compensation coefficient. The second compensator compensates the image data by modeling sensing data of entire grayscale range based on sensing data of the pixel for a third grayscale value and a fourth grayscale value. The display panel displays an image based on the image data compensated by the first compensator and the second compensator.

公开(公告)号：US20230215354A1

公开(公告)日：2023-07-06

申请号：US17899373

申请日：2022-08-30

Applicant: Samsung Display Co., Ltd.

Inventor： MIN-SEOK BAE

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2330/021

Abstract: Disclosed is a display device, which includes a display panel including a plurality of pixels, and one of the plurality of pixels includes a light emitting device connected to a first reference node and that emits light, a driving transistor connected between a power supply line receiving a power supply voltage and the first reference node, a scan transistor connected between a data line receiving a data signal and the driving transistor and that receives a scan signal, a first capacitor connected between the first reference node and a second reference node, a shared transistor connected between the first reference node and the second reference node and that receives a shared control signal, and the first capacitor and the shared transistor are connected in series between the first reference node and the second reference node, and a control electrode of the driving transistor is connected to the second reference node.

公开(公告)号：US20240260439A1

公开(公告)日：2024-08-01

申请号：US18506642

申请日：2023-11-10

Applicant: Samsung Display Co., LTD.

Inventor： MIN-SEOK BAE ,  KANGHEE LEE ,  CHANGBIN IM ,  BYUNG KI CHUN

IPC: H10K59/88 ,  G09G3/00 ,  G09G3/3233 ,  H10K59/131

CPC classification number: H10K59/88 ,  G09G3/006 ,  G09G3/3233 ,  H10K59/131 ,  G09G2300/0426 ,  G09G2300/0439 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2310/08 ,  G09G2320/045 ,  G09G2320/048 ,  G09G2330/12

Abstract: A display device includes: pixels in an active area, each of the pixels being electrically connected to a corresponding data line and a corresponding scan line; and a dummy pixel adjacent to at least one of the pixels, and electrically connected to the corresponding scan line and a sensing line. Each of the pixels and the dummy pixel includes: a light emitting element including a first electrode electrically connected to a first node, a second electrode, and an emission layer between the first electrode and the second electrode; a first transistor; a second transistor; a third transistor; a first capacitor; a fourth transistor; a fifth transistor; and a second capacitor. The dummy pixel further includes a sensing transistor electrically connected between the sensing line and the first node.

公开(公告)号：US20240005862A1

公开(公告)日：2024-01-04

申请号：US18368575

申请日：2023-09-15

Applicant: Samsung Display Co., Ltd.

Inventor： MIN-SEOK BAE

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2310/08 ,  G09G2300/0819 ,  G09G2330/021 ,  G09G2300/0861 ,  G09G2300/0426 ,  G09G2300/0852 ,  G09G2320/045 ,  G09G2300/043 ,  G09G2320/0233

Abstract: Disclosed is a display device, which includes a display panel including a plurality of pixels, and one of the plurality of pixels includes a light emitting device connected to a first reference node and that emits light, a driving transistor connected between a power supply line receiving a power supply voltage and the first reference node, a scan transistor connected between a data line receiving a data signal and the driving transistor and that receives a scan signal, a first capacitor connected between the first reference node and a second reference node, a shared transistor connected between the first reference node and the second reference node and that receives a shared control signal, and the first capacitor and the shared transistor are connected in series between the first reference node and the second reference node, and a control electrode of the driving transistor is connected to the second reference node.

公开(公告)号：US20240257752A1

公开(公告)日：2024-08-01

申请号：US18632300

申请日：2024-04-11

Applicant: Samsung Display Co., Ltd.

Inventor： MIN-SEOK BAE ,  CHANGBIN IM ,  BYUNG KI CHUN

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0264 ,  G09G2310/08 ,  G09G2320/0666 ,  G09G2330/08 ,  G09G2330/12

Abstract: A display device includes a display panel including, a driving transistor configured to generate driving current, a light emitting element configured to emit light based on the driving current and an initialization transistor configured to apply an initialization voltage to an output electrode of the driving transistor, a sensing driver configured to generate sensing data by receiving the driving current of the pixels through initialization transistors and a driving controller configured to generate accumulated image data by accumulating input image data for frames and to compensate for the input image data based on the accumulated image data and the sensing data.

公开(公告)号：US20240169894A1

公开(公告)日：2024-05-23

申请号：US18236011

申请日：2023-08-21

Applicant: Samsung Display Co., LTD.

Inventor： BYUNG KI CHUN ,  SUN-KOO KANG ,  MYEONGBIN LIM ,  MIN-SEOK BAE ,  KANGHEE LEE

IPC: G09G3/32 ,  G09G3/3291

CPC classification number: G09G3/32 ,  G09G3/3291 ,  G09G2310/0275 ,  G09G2310/0291 ,  G09G2320/0276 ,  G09G2330/021 ,  G09G2330/028

Abstract: A data driving circuit includes: a reference voltage generator that receives a data control signal and generates a gamma reference voltage and a test reference voltage, a data driving unit that outputs a data signal for a pixel based on the gamma reference voltage, and an output circuit that outputs a test data voltage for a dummy pixel based on the test reference voltage.

公开(公告)号：US20240112630A1

公开(公告)日：2024-04-04

申请号：US18197764

申请日：2023-05-16

Applicant: Samsung Display Co., Ltd.

Inventor： MIN-SEOK BAE ,  CHANGBIN IM ,  BYUNG KI CHUN

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0264 ,  G09G2310/08 ,  G09G2320/0666 ,  G09G2330/08 ,  G09G2330/12

Abstract: A display device includes a display panel including, a driving transistor configured to generate driving current, a light emitting element configured to emit light based on the driving current and an initialization transistor configured to apply an initialization voltage to an output electrode of the driving transistor, a sensing driver configured to generate sensing data by receiving the driving current of the pixels through initialization transistors and a driving controller configured to generate accumulated image data by accumulating input image data for frames and to compensate for the input image data based on the accumulated image data and the sensing data.

公开(公告)号：US20230196973A1

公开(公告)日：2023-06-22

申请号：US17879391

申请日：2022-08-02

Applicant: Samsung Display Co., Ltd.

Inventor： MIN-SEOK BAE

IPC: G09G3/20

CPC classification number: G09G3/2096 ,  G09G2300/0842 ,  G09G2300/0819 ,  G09G2310/0275 ,  G09G2310/0291 ,  G09G2300/0828 ,  G09G2310/08 ,  G09G2300/0426

Abstract: A display device includes a display panel including pixels, a data driver configured to apply a data voltage to each of the pixels, to apply a first reference voltage to the pixels in a first period of a first sensing period to generate first sensing data corresponding to a first driving current flowing through a driving transistor of each of the pixels, and to apply a second reference voltage to the pixels in a second period of the first sensing period to generate second sensing data corresponding to a second driving current flowing through the driving transistor of each of the pixels, and a driving controller configured to receive the first sensing data and the second sensing data from the data driver to compensate input image data based on the first sensing data and the second sensing data.