公开(公告)号：US10930216B2

公开(公告)日：2021-02-23

申请号：US16512255

申请日：2019-07-15

Applicant: Samsung Display Co., Ltd.

Inventor： Jung Hun Yi ,  Seung Kyu Lee ,  Ki Wook Kim ,  Yang Wan Kim

IPC: G09G3/3258 ,  G09G3/3275 ,  G09G3/3266

Abstract: A display device and a method of driving the same. The display device may include: a first pixel area including first pixels and first data lines coupled to the first pixels; a second pixel area including second pixels and second data lines coupled to the second pixels; a first non-pixel area disposed on one side of the first pixel area such that the first non-pixel area borders the first and second pixel areas; a data driver configured to output data signals corresponding to the first and second pixels through first and second output lines, respectively; and a switch unit including a first switch unit having a demux configured to alternately couple each of the first output lines to corresponding first data lines, and a second switch unit configured to couple the second output lines to the respective different second data lines.

公开(公告)号：US10861386B2

公开(公告)日：2020-12-08

申请号：US15870378

申请日：2018-01-12

Applicant: Samsung Display Co., Ltd.

Inventor： Jong Won Park ,  Won Kyu Kwak ,  Seung Kyu Lee

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3275

Abstract: An organic light emitting display device includes a pixel, a data line, a first scan line, a second scan line, and a scan driver. The pixel includes a first transistor, a second transistor, and a third transistor. A source of the first transistor is electrically connected to a drain of the third transistor. A source of the second transistor is configured to receive an initialization voltage. The data line is electrically connected to a source of the third transistor and may transmit a data voltage higher than the initialization voltage. The first scan line is electrically connected to a gate of the third transistor. The second scan line is electrically connected to a gate of the second transistor. The scan driver may provide an initializing scan signal to the second scan line at least two horizontal periods before providing an initial scan signal to the first scan line.

公开(公告)号：US10804350B2

公开(公告)日：2020-10-13

申请号：US15955626

申请日：2018-04-17

Applicant: Samsung Display Co., Ltd.

Inventor： Sang Moo Choi ,  Seung Kyu Lee

IPC: G09G3/3233 ,  H01L27/32 ,  H01L51/52 ,  G09G3/3266

Abstract: An organic light-emitting display device including: pixels disposed on each of horizontal lines, each of the pixels includes an organic light-emitting diode, and an auxiliary transistor coupled between an anode electrode of the organic light-emitting diode and an auxiliary power source; and at least one reference transistor disposed on each of the horizontal lines and coupled between a reference power source and at least one of the pixels. The auxiliary transistor and the reference transistor may be simultaneously turned on.

公开(公告)号：US20200265769A1

公开(公告)日：2020-08-20

申请号：US16741104

申请日：2020-01-13

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： SI BEAK PYO ,  Seung Kyu Lee

IPC: G09G3/20

Abstract: A source driver includes a gamma voltage generation circuit. The gamma voltage generation circuit generates a gamma voltage and varies a gamma voltage based on a drive frequency. A data voltage generation circuit generates a data voltage based on the gamma voltage.

公开(公告)号：US10733935B2

公开(公告)日：2020-08-04

申请号：US16412927

申请日：2019-05-15

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Seung Ji Cha ,  Seung Kyu Lee ,  Kyung Hoon Kim ,  Mi Hae Kim ,  Jae Du Noh ,  Jae Sic Lee

IPC: G09G3/325 ,  G09G3/3283

Abstract: A display device may include: a first pixel including first and second sub-pixels coupled to first and second data lines; a data driver which supplies data signals to first and second output lines; and a switch unit which distributes the data signals to the first and the second data lines. The first and the second sub-pixels are line-symmetrical with each other. Each of the first and the second sub-pixels may include: an OLED; a first transistor which controls a driving current flowing from a first power supply to a second power supply via the OLED, in response to a voltage supplied to a node connected thereto; emission control transistors which are turned on when an emission control signal is supplied; and a reference transistor which couples a shielding layer overlapping a corresponding data line to the first power supply when the emission control signal is supplied thereto.

公开(公告)号：US10718977B2

公开(公告)日：2020-07-21

申请号：US14815443

申请日：2015-07-31

Applicant: Samsung Display Co., Ltd.

Inventor： Youn Hak Jeong ,  Wan Namgung ,  Hong Min Yoon ,  Ho Jun Lee ,  Pil Gyu Kang ,  Seung Kyu Lee ,  Yun Seok Lee

IPC: G02F1/1339 ,  G02F1/1343 ,  G02F1/1337

Abstract: A liquid crystal display according to an exemplary embodiment of the present system and method includes a first insulation substrate, a thin film transistor disposed on the first insulation substrate, a pixel electrode connected to the thin film transistor, a protrusion disposed on the pixel electrode, a second insulation substrate facing the first insulation substrate, a common electrode disposed on the second insulation substrate, and a liquid crystal layer disposed between the pixel electrode and the common electrode, wherein one pixel includes a thin film transistor formation region where the thin film transistor is disposed and a display area where the pixel electrode is disposed, and the protrusion is disposed to overlay at least a portion of edges of the display area.

公开(公告)号：US20200082758A1

公开(公告)日：2020-03-12

申请号：US16512255

申请日：2019-07-15

Applicant: Samsung Display Co., Ltd.

Inventor： Jung Hun YI ,  Seung Kyu Lee ,  Ki Wook Kim ,  Yang Wan Kim

IPC: G09G3/3258 ,  G09G3/3275

Abstract: A display device and a method of driving the same. The display device may include: a first pixel area including first pixels and first data lines coupled to the first pixels; a second pixel area including second pixels and second data lines coupled to the second pixels; a first non-pixel area disposed on one side of the first pixel area such that the first non-pixel area borders the first and second pixel areas; a data driver configured to output data signals corresponding to the first and second pixels through first and second output lines, respectively; and a switch unit including a first switch unit having a demux configured to alternately couple each of the first output lines to corresponding first data lines, and a second switch unit configured to couple the second output lines to the respective different second data lines.

公开(公告)号：US10354578B2

公开(公告)日：2019-07-16

申请号：US15434196

申请日：2017-02-16

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ji Hyun Ka ,  Sun Ja Kwon ,  Tae Hoon Kwon ,  Byung Sun Kim ,  Yang Wan Kim ,  Hyun Ae Park ,  Su Jin Lee ,  Seung Kyu Lee ,  Jae Yong Lee ,  Jin Tae Jeong ,  Seung Ji Cha

IPC: G09G5/02 ,  G09G3/20 ,  G09G3/34 ,  G09G3/3225 ,  G09G3/3233 ,  H01L27/32

Abstract: A display device includes a substrate including a first pixel area, a second pixel area, and a third pixel area, each of the second and third pixel areas having a smaller surface area than the first pixel area and being connected to the first pixel area, first to third pixels provided in the first to third pixel areas, respectively, first to third lines connected to the first to third pixels, respectively, a line connecting part connecting the second and third lines, and a dummy unit overlapping the line connecting part to compensate for a difference of a load value of the first line and a load value of the second line.

公开(公告)号：US10319306B2

公开(公告)日：2019-06-11

申请号：US15601012

申请日：2017-05-22

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jin Tae Jeong ,  Min Ku Lee ,  Ji Hyun Ka ,  Tae Hoon Kwon ,  Seung Kyu Lee ,  Seung Ji Cha

IPC: H01L27/32 ,  G09G3/3258 ,  G09G3/3225

Abstract: A pixel includes an organic light emitting diode (OLED), a pixel circuit, and first and second transistors. The OLD includes a cathode electrode connected to a second power source. The pixel circuit includes a driving transistor having a gate electrode initialized by a third power source. The driving transistor controls the amount of current flowing from a first power source to the second power source via the OLED. The first transistor is connected between a fourth power source and the second power source and an anode electrode of the OLED. The first transistor is turned on based on a scan signal is supplied to a scan line. The second transistor is connected between a data line and the pixel circuit. The second transistor is turned on when the scan signal is supplied to the ith scan line.

公开(公告)号：US20180158393A1

公开(公告)日：2018-06-07

申请号：US15800576

申请日：2017-11-01

Applicant: Samsung Display Co., Ltd.

Inventor： Min Kyu Woo ,  Seung Kyu Lee ,  Jae Du Noh ,  Min Woo Byun ,  Jae Sic Lee ,  Seung Yeon Cho

IPC: G09G3/20

CPC classification number: G09G3/2014 ,  G09G3/2022 ,  G09G3/3233 ,  G09G3/3266 ,  G09G2310/0218 ,  G09G2310/0221 ,  G09G2310/0232 ,  G09G2310/0286 ,  G09G2310/067 ,  G09G2340/0478 ,  G11C19/28

Abstract: A display device includes: first pixels at a first pixel area and connected to first scan lines; a first scan driver to supply first scan signals to the first scan lines; second pixels at a second pixel area and connected to second scan lines; a second scan driver to supply second scan signals to the second scan lines; third pixels at a third pixel area and connected to third scan lines; and a third scan driver to supply third scan signals to the third scan lines. In a first mode, each of the first scan signals has at least a portion having a first pulse width, and each of the second scan signals has at least a portion having a second pulse width different from the first pulse width.