公开(公告)号：US20230018362A1

公开(公告)日：2023-01-19

申请号：US17706519

申请日：2022-03-28

Applicant: Samsung Display Co., LTD.

Inventor： Se Hyuk Park ,  Jin Young Roh ,  Woo Mi Bae ,  Hae Kwan Seo ,  Young Ha Sohn ,  Jin Wook Yang

IPC: G09G3/20

Abstract: A display device includes: a data driver for supplying a data signal to output lines; a demultiplexer connected to each of the output lines, the demultiplexer to supply the data signal supplied to each output line to a first data line and a second data line; first pixels disposed in a (2j−1)-th column and a (2k−1)-th row, the first pixels being connected to the first data line, wherein j and k are positive integers; second pixels disposed in the (2j−1)-th column and a (2k)-th row, the second pixels being connected to the second data line; third pixels disposed in a (2j)-th column and the (2k−1)-th row, the third pixels being connected to the first data line; and fourth pixels disposed in the (2j)-th column and the (2k)-th row, the fourth pixels being connected to the second data line.

公开(公告)号：US11335234B1

公开(公告)日：2022-05-17

申请号：US17409865

申请日：2021-08-24

Applicant: Samsung Display Co., Ltd.

Inventor： Se Hyuk Park ,  Jae Keun Lim ,  Hong Soo Kim ,  Jin Young Roh ,  Hyo Jin Lee

IPC: G09G3/20

Abstract: A display device according to an embodiment of the disclosure includes a timing controller, a scan driver including a plurality of stages connected to a plurality of clock signal lines and generating a plurality of scan signals in response to the scan start signal, a data driver configured to generate a plurality of data signals based on the image data, and a pixel portion including a plurality of pixels. One stage in the scan driver transmits a carry signal to 2n-th next stage. The timing controller selects any one of a normal frequency and low frequencies lower than the normal frequency as a driving frequency based on the input image data, and adjusts a clock duty of the plurality of clock signals so that a time required to output all of the plurality of scan signals during one frame is constant irrespective of the driving frequency.

公开(公告)号：US11227555B2

公开(公告)日：2022-01-18

申请号：US17171428

申请日：2021-02-09

Applicant: Samsung Display Co., Ltd.

Inventor： Se Hyuk Park ,  Hong Soo Kim ,  Jin Young Roh ,  Hyo Jin Lee ,  Jae Keun Lim

IPC: G09G3/3275

Abstract: A display device includes a display panel including a plurality of pixels, a data driver which provides data signals to the plurality of pixels, and a controller which controls the data driver. The controller writes frame data to a frame memory, reads the frame data in each of a plurality of frame periods, performs in a first frame period of the plurality of frame periods a still image detection operation that determines whether the frame data represent a still image, and does not performs the still image detection operation in a second frame period of the plurality of frame periods subsequent to the first frame period.

公开(公告)号：US20200294451A1

公开(公告)日：2020-09-17

申请号：US16817527

申请日：2020-03-12

Applicant: Samsung Display Co., Ltd.

Inventor： Ji Woong Kim ,  Oh Jo Kwon ,  Hyo Jin Lee ,  Se Hyuk Park

IPC: G09G3/3266 ,  G09G3/3291

Abstract: A method of driving a pixel including: during a first period of a first frame, applying a first scan signal having a turn-on level to the first scan line, applying a data voltage to a data line, and applying a second scan signal having the turn-on level to the second scan line; and during a second period of a second frame, applying the first scan signal having the turn-on level to the first scan line, applying a bias voltage to the data line, and applying the second scan signal having a turn-off level to the second scan line, the second frame is a frame subsequent to the first frame, the second period is longer than the first period, and a light-emitting diode emits light at luminance based on the data voltage during at least a portion of the first frame and at least a portion of the second frame.

公开(公告)号：US20170154603A1

公开(公告)日：2017-06-01

申请号：US15251988

申请日：2016-08-30

Applicant: Samsung Display Co., Ltd.

Inventor： Bon Seog Gu ,  Jong Soo Kim ,  Se Hyuk Park ,  Myoung Seop Song ,  Myung Ho Lee

IPC: G09G5/10 ,  G09G3/3283 ,  G09G3/3233 ,  G09G3/20

CPC classification number: G09G5/10 ,  G09G3/2003 ,  G09G3/3233 ,  G09G3/3283 ,  G09G2300/0452 ,  G09G2300/0469 ,  G09G2300/0842 ,  G09G2310/0235 ,  G09G2320/0233 ,  G09G2320/0242 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2320/045 ,  G09G2320/0693 ,  G09G2330/10

Abstract: A display device includes a plurality of front emission pixels each including a display panel including a plurality of front emission pixels each including a switching element, and a rear emission pixel, a sensor configured to sense whether the front emission pixels are degraded and to generate degradation information, and a controller configured to compensate for a degraded light source of a degraded front emission pixel of the front emission pixels according to the degradation information, and to control an ON/OFF state of the switching element of the degraded front emission pixel according to the degradation information.

公开(公告)号：US11922891B2

公开(公告)日：2024-03-05

申请号：US18114383

申请日：2023-02-27

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Se Hyuk Park ,  Seung Jae Lee

IPC: G09G3/3291 ,  G09G3/20 ,  G09G3/36

CPC classification number: G09G3/3291 ,  G09G3/2007 ,  G09G3/2096 ,  G09G3/3688 ,  G09G2300/0452 ,  G09G2310/027 ,  G09G2320/0233 ,  G09G2320/0673 ,  G09G2370/08

Abstract: A display device including: a display panel including first and second display areas, and including pixels in the first and second display areas; and a data driver to output data signals to the pixels through a channels arranged along a first direction, wherein the channels include a first channel group corresponding to the first display area and a second channel group corresponding to the second display area, wherein some of the pixels emit light in different colors and have a first pixel arrangement along the first direction, and based on channel selection information about the first or second channel groups, the data driver outputs first data signals in a first output order along the first direction corresponding to the first pixel arrangement through the first channel group, and outputs second data signals in a second output order different from the first output order through the second channel group.

公开(公告)号：US11922866B1

公开(公告)日：2024-03-05

申请号：US18133593

申请日：2023-04-12

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Young Ha Sohn ,  Se Hyuk Park ,  Jin Wook Yang ,  Dong Gyu Lee ,  Jae Hyeon Jeon

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0426 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2310/0278 ,  G09G2320/0247 ,  G09G2330/021

Abstract: A pixel includes: a first transistor including a gate electrode electrically connected to a first node, a second node to which a first power voltage for driving the light emitting element is applied, and a third node electrically connected to the light emitting element; a first emission control transistor having an on-off timing controlled by a first emission control signal; and a second emission control transistor having an on-off timing controlled by a second emission control signal. A time interval exists between a time at which the first emission control signal having a turn-on level is input such that a voltage of the second node is dropped from a bias voltage having a voltage level higher than a voltage level of the first power voltage and a time at which the second emission control signal having a turn-on level is input.

公开(公告)号：US11715406B2

公开(公告)日：2023-08-01

申请号：US17706519

申请日：2022-03-28

Applicant: Samsung Display Co., LTD.

Inventor： Se Hyuk Park ,  Jin Young Roh ,  Woo Mi Bae ,  Hae Kwan Seo ,  Young Ha Sohn ,  Jin Wook Yang

IPC: G09G3/20

CPC classification number: G09G3/2003 ,  G09G2300/0452 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0297 ,  G09G2310/08 ,  G09G2330/023

Abstract: A display device includes: a data driver for supplying a data signal to output lines; a demultiplexer connected to each of the output lines, the demultiplexer to supply the data signal supplied to each output line to a first data line and a second data line; first pixels disposed in a (2j−1)-th column and a (2k−1)-th row, the first pixels being connected to the first data line, wherein j and k are positive integers; second pixels disposed in the (2j−1)-th column and a (2k)-th row, the second pixels being connected to the second data line; third pixels disposed in a (2j)-th column and the (2k−1)-th row, the third pixels being connected to the first data line; and fourth pixels disposed in the (2j)-th column and the (2k)-th row, the fourth pixels being connected to the second data line.

公开(公告)号：US11710447B2

公开(公告)日：2023-07-25

申请号：US17391715

申请日：2021-08-02

Applicant: Samsung Display Co. Ltd.

Inventor： Se Hyuk Park ,  Hyo Jin Lee

IPC: G09G3/32 ,  H01L27/15 ,  H01L27/12 ,  H01L33/62 ,  H01L33/36 ,  H01L33/32 ,  H01L33/06 ,  H01L33/44

CPC classification number: G09G3/32 ,  H01L27/124 ,  H01L27/1214 ,  H01L27/1255 ,  H01L27/156 ,  H01L33/62 ,  G09G2300/0814 ,  G09G2300/0823 ,  G09G2300/0871 ,  G09G2310/027 ,  G09G2310/0267 ,  G09G2310/08 ,  G09G2320/029 ,  G09G2330/02 ,  H01L33/06 ,  H01L33/32 ,  H01L33/36 ,  H01L33/44

Abstract: A display device includes a first switching element including a second electrode and a first gate electrode, a second switching element including a third electrode connected with the first gate electrode, a third switching element including a fifth electrode connected with the second electrode, and sixth electrode, a fourth switching element including a seventh electrode connected with the second electrode, and an eighth electrode, a fifth switching element including a ninth electrode connected with the second electrode, and a tenth electrode, a first light emitting diode connected with the sixth electrode and the eighth electrode, a second light emitting diode connected with the eighth electrode and the sixth electrode, and a switch selectively connecting a common power source line with the sixth electrode or the eighth electrode. The first light emitting diode and the second light emitting diode have different polarities from each other with respect to a same direction.

公开(公告)号：US11610537B2

公开(公告)日：2023-03-21

申请号：US17535340

申请日：2021-11-24

Applicant: Samsung Display Co., Ltd.

Inventor： Jae Keun Lim ,  Hong Soo Kim ,  Jin Young Roh ,  Se Hyuk Park ,  Woo Mi Bae ,  Hyo Jin Lee

IPC: G09G3/32

Abstract: Provided is a display device comprising a pixel unit including first pixel rows connected to first scan lines and second pixel rows alternating with the first pixel rows and connected to second scan lines, a scan driver including first scan stages connected to the first scan lines and second scan stages connected to the second scan lines, and an emission driver including emission stages in which each of emission lines is connected to two or more pixel rows. Accordingly, the display device is capable of changing a display frequency and maintaining the same cycle in which luminance decreases when the display frequency is changed.