公开(公告)号：US20220028333A1

公开(公告)日：2022-01-27

申请号：US17190587

申请日：2021-03-03

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

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：US20190096978A1

公开(公告)日：2019-03-28

申请号：US15974530

申请日：2018-05-08

Applicant: Samsung Display Co., Ltd.

Inventor： Kwang Chul JUNG ,  Hyun Joon KIM ,  Sung Yoon KIM ,  Hyun Suk YANG ,  Doo Youl LEE

IPC: H01L27/32 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/3233

Abstract: A display device includes first pixels in a first pixel area and coupled with first scan lines, first scan stage circuits in a first peripheral area outside the first pixel area, and configured to supply a first scan signal to the first scan lines, second pixels in a second pixel area having a width that is less than a width of the first pixel area, and coupled with second scan lines, second scan stage circuits in a second peripheral area outside the second pixel area, and configured to generate a second scan signal, and first load matching units respectively between the second scan stage circuits, and configured to delay the second scan signal, and to supply the delayed second scan signal to the second scan lines.

公开(公告)号：US20240355281A1

公开(公告)日：2024-10-24

申请号：US18543347

申请日：2023-12-18

Applicant: Samsung Display Co., LTD.

Inventor： Jae Yong JANG ,  Bon Yong KOO ,  Hyun Joon KIM ,  Dan Won LIM ,  Seon Young CHOI

IPC: G09G3/3233 ,  H10K59/122 ,  H10K59/131 ,  H10K77/10

CPC classification number: G09G3/3233 ,  H10K59/122 ,  H10K59/131 ,  H10K77/111 ,  G09G2310/0283 ,  G09G2330/021 ,  H10K2102/311

Abstract: Provided is a display device including a substrate, a circuit layer disposed on a first surface of the substrate, a light emitting element layer, and a circuit board disposed on a second surface of the substrate. The circuit layer includes pixel drivers, gate lines, a first power supply line and a second power supply line respectively transmitting a first power and a second power, and a gate driver including stages electrically connected to the gate lines, respectively. The second power supply line is electrically connected to the circuit board through power connection portions. The power connection portions are disposed between a number of the stages adjacent to a curved corner of the substrate among the stages of the gate driver.

公开(公告)号：US20240071299A1

公开(公告)日：2024-02-29

申请号：US18498018

申请日：2023-10-30

Applicant: Samsung Display Co., LTD.

Inventor： Jung Hwan HWANG ,  Hyun Joon KIM ,  Kye Uk LEE ,  Jun Ki JEONG ,  Sang Jin JEON

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/027 ,  G09G2310/0297

Abstract: A display device includes connection lines, pulse amplitude modulation (PAM) data lines configured to receive pulse width modulation (PWM) data voltages, PWM data lines configured to receive the PWM data voltages, a first connection control line configured to receive a first connection control signal, a second connection control line configured to receive a second connection control signal, subpixels connected to the PWM data lines and the PAM data lines, and a first demultiplexer (demux) unit configured to connect the connection lines to the PAM data lines or to the PWM data lines according to the first connection control signal and the second connection control signal.

公开(公告)号：US20240038147A1

公开(公告)日：2024-02-01

申请号：US18305167

申请日：2023-04-21

Applicant: Samsung Display Co., LTD.

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

IPC: G09G3/32 ,  G09G3/00

CPC classification number: G09G3/32 ,  G09G3/006 ,  G09G2300/026 ,  G09G2330/12 ,  G09G2310/0275 ,  G09G2300/0426 ,  G09G2320/0633

Abstract: A display device includes: first sub-pixels commonly connected to a first global data line, each including a first light emitting element to emit light of a first color; and second sub-pixels commonly connected to a second global data line different from the first global data line, each including a second light emitting element to emit light of a second color different from the first color. At least one of the first sub-pixels includes: a first circuit to supply a driving current to the first light emitting element based on a first global data voltage received from the first global data line; a second circuit to control a supply period of the driving current based on a data voltage received from a data line; and a test transistor including a first electrode connected to an anode of the first light emitting element, and a second electrode connected to the data line.

公开(公告)号：US20230360584A1

公开(公告)日：2023-11-09

申请号：US18353817

申请日：2023-07-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jung Hwan HWANG ,  Hyun Joon KIM ,  Kye Uk LEE ,  Sang Jin JEON ,  Jun Ki JEONG

IPC: G09G3/22

CPC classification number: G09G3/22 ,  G09G3/3208

Abstract: A display device includes a first pixel driver connected to a sweep line, the first pixel driver generating a control current based on a first data voltage, a second pixel driver connected to a scan control line, the second pixel driver generating a driving current based on a second data voltage and controlling a period for which the driving current flows, based on the control current, and a light-emitting element connected to the second pixel driver to receive the driving current. The first pixel driver includes a first transistor generating the control current based on the first data voltage, a second transistor providing the first data voltage to a first electrode of the first transistor based on a scan write signal, and a first capacitor including a first capacitor electrode connected to a gate electrode of the first transistor, and a second capacitor electrode connected to the sweep line.

公开(公告)号：US20230268474A1

公开(公告)日：2023-08-24

申请号：US17896693

申请日：2022-08-26

Applicant: Samsung Display Co., LTD.

Inventor： Jun Ki JEONG ,  Hyun Joon KIM ,  Kye Uk LEE ,  Sang Jin JEON ,  Jung Hwan HWANG

IPC: H01L33/62 ,  H01L25/075 ,  H01L33/38 ,  G09F9/302 ,  G09F9/33

CPC classification number: H01L33/62 ,  G09F9/33 ,  G09F9/3026 ,  H01L25/0753 ,  H01L33/382

Abstract: A display device including a substrate that includes a display area and a non-display area disposed at a side of the display area. The display area includes first through fourth areas. The fourth area includes a first sub-area adjacent to at least one of the first to third areas, and a second sub-area excluding the first sub-area. At least the second sub-area includes first pixels disposed in a first direction in a first pixel row, second pixels disposed in the first direction in a second pixel row that is a next row of the first pixel row, the second pixels spaced apart from the first pixels, a clock line extending in a second direction intersecting the first direction, and a gate driver including a first stage disposed left of the clock line in a plan view, and a second stage disposed right of the clock line in a plan view.

公开(公告)号：US20230238497A1

公开(公告)日：2023-07-27

申请号：US18082787

申请日：2022-12-16

Applicant: Samsung Display Co., LTD.

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

IPC: H01L33/62 ,  H01L25/075 ,  G09G3/32 ,  H01L33/38 ,  H01L27/15 ,  G09F9/33 ,  G09F9/302

CPC classification number: H01L33/62 ,  H01L25/0753 ,  G09G3/32 ,  H01L33/38 ,  H01L27/156 ,  G09F9/33 ,  G09F9/3026 ,  G09G2310/0275

Abstract: A display device comprises anode electrodes respectively corresponding to sub-pixels, cathode electrodes respectively corresponding to the sub-pixels and respectively spaced apart from the anode electrodes, a cathode line electrically connected to the cathode electrodes, anode pads respectively overlapping the plurality of anode electrodes in a plan view, cathode pads respectively overlapping the cathode electrodes in a plan view, and a cathode line pad overlapping at least part of the cathode line in a plan view.

公开(公告)号：US20230238496A1

公开(公告)日：2023-07-27

申请号：US18060862

申请日：2022-12-01

Applicant: Samsung Display Co., LTD.

Inventor： Seung Lyong BOK ,  Hyun Joon KIM

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

CPC classification number: H01L33/62 ,  H01L33/387 ,  H01L27/156 ,  G09F9/3026

Abstract: A display device including a wiring area including a plurality of scan lines extending in a first direction and a plurality of data lines extending in a second direction crossing the first direction, a transmissive area surrounded by the wiring area and configured to transmit light, a plurality of pixel drivers respectively connected to one of the plurality scan lines and one of the plurality of data lines, a first pad electrode and a second pad electrode overlapping a first pixel driver from among the plurality of pixel drivers, a light emitting element on the first pad electrode and the second pad electrode, a first supplement electrode overlapping the first pad electrode, and a second supplement electrode overlapping the second pad electrode.

公开(公告)号：US20230230964A1

公开(公告)日：2023-07-20

申请号：US18076148

申请日：2022-12-06

Applicant: Samsung Display Co., LTD.

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

IPC: H01L25/075 ,  H01L33/62 ,  H01L27/12

CPC classification number: H01L25/0753 ,  H01L33/62 ,  H01L27/124 ,  H01L27/1255

Abstract: A display device includes a first data line configured to receive a first data voltage, a second data line configured to receive a second data voltage, a low driving voltage line configured to receive a low driving voltage, and a first sub-pixel connected to the first data line, the second data line, and the low driving voltage line. The first sub-pixel includes a cathode pad electrode connected to the low driving voltage line, a first transistor configured to generate a control current according to the first data voltage of the first data line and having a first gate electrode, an eighth transistor configured to generate a driving current applied to a light emitting element according to the second data voltage of the second data line, and a first capacitor including a first capacitor electrode connected to the first gate electrode, and a second capacitor electrode on the first capacitor electrode.