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：US20230326932A1

公开(公告)日：2023-10-12

申请号：US18184561

申请日：2023-03-15

Applicant: Samsung Display Co., LTD.

Inventor： Yong Duck SON ,  Won Bong BAEK ,  Sang Woo AN ,  Kye Uk LEE ,  Won Ho JANG ,  Nak Cho CHOI

IPC: H01L27/12 ,  H01L25/16 ,  H01L23/00

CPC classification number: H01L27/124 ,  H01L25/167 ,  H01L24/05 ,  H01L24/08 ,  H01L24/13 ,  H01L24/16 ,  H01L2224/05073 ,  H01L2224/05027 ,  H01L2224/05573 ,  H01L2224/05561 ,  H01L2224/05572 ,  H01L2224/05686 ,  H01L2224/06181 ,  H01L24/06 ,  H01L2224/08145 ,  H01L2224/13021 ,  H01L2224/16225 ,  H01L2924/0549 ,  H01L2924/12041

Abstract: A display device includes, a substrate including a first surface and a second surface opposite to the first surface; a light emitting element on the first surface of the substrate; a top surface pad on the first surface of the substrate and spaced from the light emitting element; a driving circuit on the second surface of the substrate to apply a driving signal for driving the light emitting element; a top surface connection line between the first surface of the substrate and the top surface pad to electrically connect the top surface pad to the light emitting element; an interlayer insulating layer between the top surface connection line and the top surface pad; and a side wiring on the top surface pad to connect the top surface pad to the driving circuit.

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：US20230238399A1

公开(公告)日：2023-07-27

申请号：US18158958

申请日：2023-01-24

Applicant: Samsung Display Co., LTD.

Inventor： Nak Cho CHOI ,  Yong Duck SON ,  Sang Woo AN ,  Kye Uk LEE

IPC: H01L27/12 ,  H01L25/16 ,  G01R31/28

CPC classification number: H01L27/1244 ,  H01L25/167 ,  G01R31/2884 ,  H01L27/1218 ,  H01L24/05

Abstract: A display device including a substrate having a first side surface, a first surface, a second surface opposite to the first surface, a first chamfered surface extending from an edge of the first surface to the first side surface, a second chamfered surface extending from an edge of the second surface t the first side surface, a pixel on the first surface of the substrate and including a light emitting element configured to emit light, a first driving pad at the edge of the first surface of the substrate and electrically connected to the pixel, and a side wiring on the first surface, the first chamfered surface, the first side surface, the second chamfered surface, and the second surface of the substrate. The first driving pad has a flat portion connected to the side wiring.

公开(公告)号：US20230238394A1

公开(公告)日：2023-07-27

申请号：US18158421

申请日：2023-01-23

Applicant: Samsung Display Co., LTD.

Inventor： Kye Uk LEE ,  Nak Cho CHOI ,  Sang Woo AN ,  Yong Duck SON ,  Won Ho JANG ,  Jung Hwan HWANG ,  Myung Koo HUR

IPC: H01L27/12 ,  H01L25/16

CPC classification number: H01L27/124 ,  H01L25/167 ,  H01L27/1218 ,  H01L24/05

Abstract: A display device includes a substrate including a first surface, a second surface opposite to the first surface, a first chamfered surface extending from one side of the first surface, a second chamfered surface extending from one side of the second surface, and a side surface connecting the first chamfered surface to the second chamfered surface, a pixel on the first surface of the substrate and including a light emitting element to emit light, a plurality of front pad parts on an edge of the first surface of the substrate and electrically connected to the pixel, a plurality of rear pad parts on an edge of the second surface of the substrate, and a plurality of side surface connection lines on the side surface of the substrate electrically connecting the plurality of front pad parts to the plurality of rear pad parts.

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.

公开(公告)号：US20230124542A1

公开(公告)日：2023-04-20

申请号：US17849299

申请日：2022-06-24

Applicant: Samsung Display Co., LTD.

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

IPC: G09G3/22

Abstract: A display device includes: a first pixel driver to generate a control current; a second pixel driver to generate a driving current, and control a period during 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 to generate the control current based on a first data voltage; and a second transistor to provide the first data voltage to a first electrode of the first transistor based on a scan write signal from a scan write line. The second pixel driver includes: a third transistor to generate the driving current based on the control current; and a fourth transistor to provide a second data voltage to a first electrode of the third transistor based on a scan write signal from the scan write line.