公开(公告)号：US20220084450A1

公开(公告)日：2022-03-17

申请号：US17220087

申请日：2021-04-01

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jung Taek KIM ,  Kyun Ho KIM ,  Jae Woo RYU ,  Joon Suk BAIK ,  Se Keun LEE ,  Sang Su HAN

IPC: G09G3/20

Abstract: A display device includes a processor which supplies grayscale data in active periods of frame periods and stops supply of the grayscale data in blank periods of the frame periods, a timing controller which generates a change signal when a difference between a first blank period of a first frame period and a second blank period of a second frame period is greater than a threshold value, a power supply which supplies a first power voltage having a voltage level changed based on the change signal to a first power line, and pixels commonly connected to the first power line.

公开(公告)号：US20230142908A1

公开(公告)日：2023-05-11

申请号：US18151142

申请日：2023-01-06

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jung Taek KIM ,  Kyun Ho KIM ,  Jae Woo RYU ,  Joon Suk BAIK ,  Se Keun LEE ,  Sang Su HAN

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/08 ,  G09G2310/061 ,  G09G2300/0842 ,  G09G2310/027 ,  G09G2320/0247 ,  G09G2320/0233

Abstract: A display device includes a processor which supplies grayscale data in active periods of frame periods and stops supply of the grayscale data in blank periods of the frame periods, a timing controller which generates a change signal when a difference between a first blank period of a first frame period and a second blank period of a second frame period is greater than a threshold value, a power supply which supplies a first power voltage having a voltage level changed based on the change signal to a first power line, and pixels commonly connected to the first power line.

公开(公告)号：US20210272505A1

公开(公告)日：2021-09-02

申请号：US17037089

申请日：2020-09-29

Applicant: Samsung Display Co., Ltd.

Inventor： Jung Taek KIM ,  Sang Su HAN ,  Kyun Ho KIM ,  Hyung Keun PARK ,  Joon Suk BAIK ,  Se Keun LEE

IPC: G09G3/20

Abstract: A display device includes: a plurality of pixel blocks each including a plurality of pixels; a scan driver supplying a scan signal to the scan lines and to supply a control signal to the control lines; a data driver supplying an image data voltage or a low grayscale data voltage to the data lines; and a power supply supplying a reference voltage to the pixels, wherein the pixels are configured to receive the image data voltage during a first scan period of a frame, and to receive the low grayscale data voltage during a second scan period of the frame, and the reference voltage supplied to a first pixel row of at least one of the pixel blocks in the first scan period is different from the reference voltage supplied to a last pixel row of at least one of the pixel blocks in the first scan period.

公开(公告)号：US20230419877A1

公开(公告)日：2023-12-28

申请号：US18464961

申请日：2023-09-11

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sang Su HAN ,  Kyun Ho KIM ,  Seong Jun KIM ,  Jung Taek KIM ,  Hyung Keun PARK ,  Joon Suk BAIK ,  Se Keun LEE

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G2310/027 ,  G09G2310/0278

Abstract: A display device, includes: a scan driver configured to sequentially supply scan signals having a turn-on level to the first scan line and the second scan line during a first period and to concurrently supply scan signals having a turn-on level to the first scan line and the second scan line during a second period after the first period, wherein: a mask period corresponds to a difference between a start point of the second period and a start point of the first period in a next frame period, a first frame period and a second frame period have different mask periods, a third frame period between the first frame period and the second frame period has a same mask period as the first frame period, and a fourth frame period between the first frame period and the second frame period has a same mask period as the second frame period.

公开(公告)号：US20230316994A1

公开(公告)日：2023-10-05

申请号：US18327859

申请日：2023-06-01

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jung Taek KIM ,  Sang Su HAN ,  Kyun Ho KIM ,  Hyung Keun PARK ,  Joon Suk BAIK ,  Se Keun LEE

IPC: G09G3/32 ,  G09G3/20 ,  G09G3/3233 ,  G09G3/36

CPC classification number: G09G3/32 ,  G09G3/2092 ,  G09G3/3233 ,  G09G3/36 ,  G09G3/3648 ,  G09G2310/0205 ,  G09G2310/027 ,  G09G2310/0278 ,  G09G2310/061 ,  G09G2310/062 ,  G09G2320/0252 ,  G09G2320/0257 ,  G09G2320/0261 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2320/0673 ,  G09G2330/021

Abstract: A display device includes: a plurality of pixel blocks each including a plurality of pixels; a scan driver supplying a scan signal to the scan lines and to supply a control signal to the control lines; a data driver supplying an image data voltage or a low grayscale data voltage to the data lines; and a power supply supplying a reference voltage to the pixels, wherein the pixels are configured to receive the image data voltage during a first scan period of a frame, and to receive the low grayscale data voltage during a second scan period of the frame, and the reference voltage supplied to a first pixel row of at least one of the pixel blocks in the first scan period is different from the reference voltage supplied to a last pixel row of at least one of the pixel blocks in the first scan period.

公开(公告)号：US20210264845A1

公开(公告)日：2021-08-26

申请号：US17036916

申请日：2020-09-29

Applicant: Samsung Display Co., Ltd.

Inventor： Sang Su HAN ,  Kyun Ho KIM ,  Seong Jun KIM ,  Jung Taek KIM ,  Hyung Keun PARK ,  Joon Suk BAIK ,  Se Keun LEE

IPC: G09G3/20

Abstract: A display device, includes: a scan driver configured to sequentially supply scan signals having a turn-on level to the first scan line and the second scan line during a first period and to concurrently supply scan signals having a turn-on level to the first scan line and the second scan line during a second period after the first period, wherein: a mask period corresponds to a difference between a start point of the second period and a start point of the first period in a next frame period, a first frame period and a second frame period have different mask periods, a third frame period between the first frame period and the second frame period has a same mask period as the first frame period, and a fourth frame period between the first frame period and the second frame period has a same mask period as the second frame period.

公开(公告)号：US20230146329A1

公开(公告)日：2023-05-11

申请号：US18148772

申请日：2022-12-30

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sang Su HAN ,  Kyun Ho KIM ,  Seong Jun KIM ,  Jung Taek KIM ,  Hyung Keun PARK ,  Joon Suk BAIK ,  Se Keun LEE

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G2310/027 ,  G09G2310/0278

Abstract: A display device, includes: a scan driver configured to sequentially supply scan signals having a turn-on level to the first scan line and the second scan line during a first period and to concurrently supply scan signals having a turn-on level to the first scan line and the second scan line during a second period after the first period, wherein: a mask period corresponds to a difference between a start point of the second period and a start point of the first period in a next frame period, a first frame period and a second frame period have different mask periods, a third frame period between the first frame period and the second frame period has a same mask period as the first frame period, and a fourth frame period between the first frame period and the second frame period has a same mask period as the second frame period.

公开(公告)号：US20230129090A1

公开(公告)日：2023-04-27

申请号：US17857151

申请日：2022-07-04

Applicant: Samsung Display Co., LTD.

Inventor： Jung Taek KIM ,  Byeong Doo KANG ,  Joon Suk BAIK ,  Se Keun LEE

IPC: G09G3/3233 ,  G09G3/3275

Abstract: A display device includes a pixel unit that includes a plurality of pixels, a compensator configured to receive sensing data from the pixel unit in a sensing period and that detects and compensates for a characteristic of the pixels, and a timing controller configured to convert an image signal received from an outside into image data.

公开(公告)号：US20210201781A1

公开(公告)日：2021-07-01

申请号：US17065418

申请日：2020-10-07

Applicant: Samsung Display Co., Ltd.

Inventor： Kyun Ho KIM ,  Yong-Jin SHIN ,  Seong Jun KIM ,  Jung-Taek KIM ,  Joon Suk BAIK ,  Se Keun LEE ,  Uk Jae JANG ,  Sang Su HAN

IPC: G09G3/3233 ,  G09G3/3275

Abstract: A display device includes: a net power control circuit configured to analyze a screen load from an input image signal to generate a load signal including a load value corresponding to the screen load; and an overcurrent protection circuit configured to set a set current value at a predetermined ratio with respect to a global current value corresponding to the load value included in the load signal, and to determine whether or not the display device is powered off based on the set current value.

公开(公告)号：US20230016947A1

公开(公告)日：2023-01-19

申请号：US17933551

申请日：2022-09-20

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kyun Ho KIM ,  Jung Taek KIM ,  Hong Kyu KIM ,  Hyung Keun PARK ,  Joon Suk BAIK ,  Young Soo SOHN ,  Yong Jin SHIN ,  Se Keun LEE

IPC: G09G3/3266 ,  G09G3/3275 ,  H01L27/32

Abstract: A display device includes: a pixel connected to each of a first scan line, a second scan line, and a data line; a scan driver supplying a first scan signal to the first scan line and a second scan signal to the second scan line; a controller dividing one frame period into an active period and a blank period and generating a count signal in which a time duration of the blank period is counted and a power control signal; a data driver supplying a data signal to the data line; and a power supply controlling a source driving voltage supplied to the data driver according to a duration of the blank period based on the power control signal. When the count signal reaches a reference value, the controller supplies a start signal for output of the first scan signal to the scan driver.