公开(公告)号：US20240257723A1

公开(公告)日：2024-08-01

申请号：US18506942

申请日：2023-11-10

Applicant: c/o Samsung Display Co., LTD.

Inventor： Hyun Joon KIM ,  Min Kyu WOO ,  Bon Yong KOO ,  Min Jae JEONG ,  Seon Young CHOI

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/0267 ,  G09G2310/06 ,  G09G2310/061 ,  G09G2310/08

Abstract: A pixel circuit including a constant current driver including a first driving transistor for controlling a current through a light-emitting element, a first electrode thereof being connected to a first power source, and a second electrode thereof being connected to an anode electrode of the light-emitting element, and an emission time controller including a second driving transistor between a second power source and the constant current driver, and configured to control the emission time by turning off the first driving transistor after a time at which a Pulse Width Modulation data voltage corresponding to an input image is applied to a gate electrode of the second driving transistor, and based on a magnitude of the PWM data voltage, wherein the second driving transistor is turned on based on the magnitude of the PWM data voltage, to transfer a driving voltage from the second power source to the constant current driver.

公开(公告)号：US20240138188A1

公开(公告)日：2024-04-25

申请号：US18227610

申请日：2023-07-27

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Joon KIM ,  Bon-Yong KOO ,  DANWON LIM ,  JAEYONG JANG

IPC: H10K59/121 ,  H10K59/131

CPC classification number: H10K59/1213 ,  H10K59/1216 ,  H10K59/131

Abstract: A light emitting display device includes: a driving transistor including a driving gate electrode, and first and second electrodes; a storage capacitor including first and second storage electrodes; a second transistor including electrodes connected to a data line and the second storage electrode, respectively; a third transistor including electrodes connected to the second electrode of the driving transistor and the driving gate electrode, respectively; a hold capacitor including first and second hold electrodes connected to a first driving voltage line and the second storage electrode, respectively; and a ninth transistor including electrodes connected to the first driving voltage line and the first electrode of the driving transistor, respectively. The second storage and hold electrodes are integrally formed, the driving gate electrode and the first storage electrode are integrally formed, and the driving gate electrode, the second storage electrode, and the first hold electrode overlap each other.

公开(公告)号：US20240119901A1

公开(公告)日：2024-04-11

申请号：US18537939

申请日：2023-12-13

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Min Jae JEONG ,  Jun Hyun PARK ,  Hyun Joon KIM ,  Kyung Hoon CHUNG ,  Jang Mi KANG ,  Hae Min KIM

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

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/32

Abstract: A pixel including: a light emitting element; a first transistor connected between a first power source and a second node; a first capacitor connected to a first node or a second node and a third node; a second transistor between the third node and a data line, the second transistor turned on by a first scan signal; a third transistor between the first and second nodes, the third transistor turned on by a second scan signal; a fifth transistor between the first power source and the first transistor, the fifth transistor turned on by a first emission control signal; a sixth transistor between the second node and the light emitting element, the sixth transistor turned on by a second emission control signal; and an eighth transistor between the second node and a second emission control line, the eighth transistor turned on by a fourth scan signal.

公开(公告)号：US20230246148A1

公开(公告)日：2023-08-03

申请号：US17965511

申请日：2022-10-13

Applicant: Samsung Display Co., LTD.

Inventor： Kye Uk LEE ,  Hyun Joon KIM ,  Jung Hwan HWANG

IPC: H01L33/62 ,  G09F9/33 ,  G09F9/302 ,  H01L33/38 ,  H01L27/02

CPC classification number: H01L33/62 ,  G09F9/33 ,  G09F9/3026 ,  H01L27/0288 ,  H01L33/382

Abstract: A display device includes a substrate including a display area including pixels, and a non-display area around the display area, a pad part in the non-display area, antistatic circuits between the pad part and the pixels, respectively, a first resistance line connected to the pad part and to the antistatic circuits, a second resistance line connected to the first resistance line and overlapping the first resistance line, and a fan-out line connected between the second resistance line and a respective one of the pixels.

公开(公告)号：US20230238493A1

公开(公告)日：2023-07-27

申请号：US17894536

申请日：2022-08-24

Applicant: Samsung Display Co., LTD.

Inventor： Kye Uk LEE ,  Hyun Joon KIM ,  Jung Hwan HWANG

IPC: H01L33/62 ,  H01L27/15 ,  H01L33/38 ,  G09F9/302 ,  G09F9/33

CPC classification number: H01L33/62 ,  H01L27/156 ,  H01L33/382 ,  G09F9/3026 ,  G09F9/33

Abstract: A display device includes a display area including light emitting elements in a first pixel row, pixel circuits in a first circuit row and electrically connected to the first pixel row, light emitting elements in a second pixel row between the first pixel row and the first circuit row, pixel circuits in a second circuit row and electrically connected to the second pixel row, and a gate driver including a first stage disposed between the pixel circuits of the first circuit row and a second stage disposed between the pixel circuits of the second circuit row. A distance between adjacent pixel circuits with the first stage between the adjacent pixel circuits in the first circuit row is greater than a distance between other pixel circuits of the first circuit row.

公开(公告)号：US20230238400A1

公开(公告)日：2023-07-27

申请号：US17901613

申请日：2022-09-01

Applicant: Samsung Display Co., LTD.

Inventor： Seung Lyong BOK ,  Hyun Joon KIM

IPC: H01L27/12 ,  H01L25/16 ,  H01L23/00 ,  G06F3/041 ,  G06F3/044

CPC classification number: H01L27/1248 ,  H01L25/167 ,  H01L24/05 ,  H01L27/124 ,  G06F3/0412 ,  G06F3/0446 ,  G06F3/04184 ,  H01L24/08 ,  H01L2224/05027 ,  H01L2224/05073 ,  H01L2224/05562 ,  H01L2224/05686 ,  H01L2224/08145 ,  H01L2224/05566 ,  H01L2224/05567 ,  H01L2924/0549 ,  H01L24/16 ,  H01L2224/16145

Abstract: Provided are a display device and a tiled display device. The display device according to one or more embodiments includes a substrate, transistors above the substrate, a first organic insulating layer above the transistors, a first connection electrode above the first organic insulating layer, and electrically connected to at least one of the transistors, a second connection electrode above the first organic insulating layer, a first power supply line configured to receive a first power voltage, above the first organic insulating layer, and connected to the second connection electrode, and a second organic insulating layer above the first power supply line, and defining an opening area exposing the first power supply line.

公开(公告)号：US20230162679A1

公开(公告)日：2023-05-25

申请号：US17990813

申请日：2022-11-21

Applicant: Samsung Display Co., LTD.

Inventor： Byung Chang YU ,  Hyun Joon KIM ,  Hae Min KIM ,  Myunghoon PARK ,  Dong-Hoon LEE

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  H01L27/3276

Abstract: A light emitting display device includes a light emitting diode including a first electrode and a second electrode to which a driving voltage is applied, a driving transistor, a second transistor receiving a data voltage and connected to a D node, a storage capacitor connected to the driving transistor and an N node, a hold capacitor connected to the D node and the N node, a third transistor connected to the D node and the driving transistor, a fourth transistor receiving a reference voltage and connected to the driving transistor, a fifth transistor connected to the driving transistor and the N node, a sixth transistor receiving a driving low voltage and connected to the driving transistor, a seventh transistor receiving an initialization voltage and connected the driving transistor, and an eighth transistor connected to the driving transistor and the first electrode of the light emitting diode.

公开(公告)号：US20230162666A1

公开(公告)日：2023-05-25

申请号：US18158347

申请日：2023-01-23

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyun Joon KIM ,  Kyung Hoon CHUNG

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0809 ,  G09G2320/0242

Abstract: A pixel circuit includes: a first transistor including a gate electrode connected to a first node, a source electrode connected to a first power line, and a drain electrode connected to a second power line; a light emitting element connected between the first transistor and the first or second power line; a second transistor connected between a data line and the first node, and including a gate electrode connected to a first scan line; a first capacitor connected between the first node and the source electrode of the first transistor; a third transistor connected between the first node and the first power line, and including a gate electrode connected to a second node; a fourth transistor connected between the second node and the data line, and including a gate electrode connected to a second scan line; and a second capacitor connected between the second node and a first control line.

公开(公告)号：US20220102463A1

公开(公告)日：2022-03-31

申请号：US17307859

申请日：2021-05-04

Applicant: Samsung Display Co., Ltd.

Inventor： Jun Hyun PARK ,  Jang Mi KANG ,  Hyun Joon KIM ,  Hae Min KIM ,  Min Jae JEONG

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

Abstract: A light emitting diode display device includes: a pixel circuit; a data line connected to the pixel circuit to transmit a data voltage; an anode on the pixel circuit and the data line; an emission layer on the anode; and a cathode on the emission layer. The anode includes a first anode and a second anode, and the data line extends across the first anode and the second anode.

公开(公告)号：US20210343240A1

公开(公告)日：2021-11-04

申请号：US17142530

申请日：2021-01-06

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Min Kyu WOO ,  Hyun Joon KIM

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

Abstract: A display device including: a pixel connected to first, second and third scan lines, a data line, and an emission line, the pixel including: an LED; a first transistor including a first electrode connected to a first node, a second electrode connected to a second node, and a gate electrode connected to a third node; a second transistor connected between the data line and the first node and including a gate electrode connected to the first scan line; a third transistor connected between the second node and the third node and including a gate electrode connected to the second scan line; a fourth transistor connected between the second node and a power source and including a gate electrode connected to the third scan line; and a fifth transistor connected between the second node and an anode of the LED and including a gate electrode connected to the second scan line.