公开(公告)号：US20240078973A1

公开(公告)日：2024-03-07

申请号：US18139975

申请日：2023-04-27

Applicant: Samsung Display Co., Ltd.

Inventor： HANBIT KIM ,  SUNGWOOK KIM ,  CHANYEOB SEOL ,  YUNJUNG OH ,  JEONG-SOO LEE ,  JINA LEE ,  SEONGBAIK CHU

IPC: G09G3/3233 ,  H10K59/131

CPC classification number: G09G3/3233 ,  H10K59/131 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2320/0247

Abstract: A pixel may include a light emitting diode which includes an anode and a cathode, a first transistor which includes a first source region, a first drain region electrically connected to the anode, a first channel region, and a first gate electrode, a first sub-transistor which includes a first sub-source region connected to the first drain region, a first sub-drain region, a first sub-channel region, and a first sub-gate electrode, a second sub-transistor which includes a second sub-source region connected to the first sub-drain region, a second sub-drain region connected to the first gate electrode, a second sub-channel region, and a second sub-gate electrode, a storage line which overlaps the first sub-drain region and the second sub-source region, and a first hold pattern which overlaps the first sub-drain region, the second sub-source region, and the storage line, and connected to the first sub-drain region and the second sub-source region.

公开(公告)号：US20230252940A1

公开(公告)日：2023-08-10

申请号：US18301973

申请日：2023-04-17

Applicant: Samsung Display Co., Ltd.

Inventor： WAN-SOON IM ,  CHULHO KIM ,  KIDAN LEE ,  JEONG-SOO LEE ,  JINA LEE ,  SUGWOO JUNG

IPC: G09G3/3208 ,  H10K59/131

CPC classification number: G09G3/3208 ,  H10K59/131 ,  G09G2340/0435 ,  G09G2320/0233 ,  G09G2320/0214 ,  H10K59/122

Abstract: A display device includes a light emitting element including an anode, a cathode, and a light emitting layer between the anode and the cathode, a first transistor connected between the anode and a first power line, the first transistor may be switched by a voltage of a node, a second transistor connected between the first transistor and a data line, the second transistor may be switched by a write scan signal, a third transistor connected between the node and the anode, the third transistor may be switched by a compensation scan signal, a fourth transistor connected between the node and an initialization line, the fourth transistor may be switched by an initialization scan signal, an insulating layer on the first to the fourth transistors, and a light blocking pattern protruding from the insulating layer, the light blocking pattern being adjacent to the third transistor and the fourth transistor.

公开(公告)号：US20230051015A1

公开(公告)日：2023-02-16

申请号：US17721071

申请日：2022-04-14

Applicant: Samsung Display Co., Ltd.

Inventor： WAN-SOON IM ,  CHULHO KIM ,  KIDAN LEE ,  JEONG-SOO LEE ,  JINA LEE ,  SUGWOO JUNG

IPC: G09G3/3208 ,  H01L27/32

Abstract: A display device includes a light emitting element including an anode, a cathode, and a light emitting layer between the anode and the cathode, a first transistor connected between the anode and a first power line, the first transistor may be switched by a voltage of a node, a second transistor connected between the first transistor and a data line, the second transistor may be switched by a write scan signal, a third transistor connected between the node and the anode, the third transistor may be switched by a compensation scan signal, a fourth transistor connected between the node and an initialization line, the fourth transistor may be switched by an initialization scan signal, an insulating layer on the first to the fourth transistors, and a light blocking pattern protruding from the insulating layer, the light blocking pattern being adjacent to the third transistor and the fourth transistor.

公开(公告)号：US20250046249A1

公开(公告)日：2025-02-06

申请号：US18763160

申请日：2024-07-03

Applicant: Samsung Display Co., LTD.

Inventor： KYOUNGJU SHIN ,  SUYUL SEO ,  JEONG-SOO LEE

IPC: G09G3/3233 ,  H01L27/12

Abstract: A display device includes a plurality of pixels where each pixel includes a first transistor connected between a first node and a second node, and including a gate electrode connected to a third node, a second transistor connected between a data line and the first node, and including a gate electrode, a third transistor connected between the second node and the third node, and including a gate electrode, a fourth transistor connected between a first initialization voltage line and the third node, and including a gate electrode, a fifth transistor connected between a first power line and the first node, and including a gate electrode, a sixth transistor connected between the second node and a fourth node, and including a gate electrode, a storage capacitor connected between the third node and the first power line, and a light emitting element connected between the fourth node and a second power line.

公开(公告)号：US20240346989A1

公开(公告)日：2024-10-17

申请号：US18752121

申请日：2024-06-24

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： JINSUNG AN ,  SUNGHO KIM ,  MINWOO WOO ,  WANGWOO LEE ,  JEONG-SOO LEE ,  SUGWOO JUNG

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0426 ,  G09G2300/0852 ,  G09G2310/0278 ,  G09G2320/0247

Abstract: A display panel includes: a light emitting element, a driving switching element, a bias switching element and a bias control switching element. The driving switching element is configured to apply a driving current to the light emitting element. The bias switching element is connected to a first electrode of the driving switching element and configured to apply a bias voltage to the first electrode of the driving switching element. The bias control switching element is connected to a first electrode of the bias switching element and configured to apply the bias voltage to the first electrode of the bias switching element.

公开(公告)号：US20230333611A1

公开(公告)日：2023-10-19

申请号：US18341855

申请日：2023-06-27

Applicant: Samsung Display Co., LTD.

Inventor： JIHYE KONG ,  JEONG-SOO LEE

IPC: G06F1/18 ,  G09G3/3275

CPC classification number: G06F1/189 ,  G09G3/3275 ,  G09G2300/0426

Abstract: A display device includes a plurality of pixels and an upper signal line providing a data signal to the pixels. The upper signal line includes a first upper signal line including a first metal material, a second upper signal line including a second metal material which is different from the first metal material, and a third upper signal line including the first metal material. The first, second and third upper signal lines are arranged in order and respectively electrically connected to a plurality of connection lines including the second metal material. The connection lines are connected to a plurality of lower signal lines.

公开(公告)号：US20240404895A1

公开(公告)日：2024-12-05

申请号：US18804531

申请日：2024-08-14

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： MOO SOON KO ,  JEONG-SOO LEE ,  JUNG HWA KIM

IPC: H01L21/66 ,  G09G3/00 ,  G09G3/3233 ,  H01L27/12 ,  H01L29/786 ,  H10K59/12 ,  H10K59/88

Abstract: A display device is disclosed. In one aspect, the display device includes a display area configured to display an image, a peripheral area neighboring the display area, and at least one test element group (TEG) including a test thin film transistor (TFT) formed in the peripheral area and a plurality of test pads electrically connected to the test TFT. The display device also includes first to third dummy circuits separated from the test TFT, each of the first to third dummy circuits including a plurality of first dummy semiconductor layers and a plurality of first dummy gate electrodes overlapping at least a portion of the first dummy semiconductor layers in the depth dimension of the display device.

公开(公告)号：US20220413569A1

公开(公告)日：2022-12-29

申请号：US17897669

申请日：2022-08-29

Applicant: Samsung Display Co., LTD.

Inventor： JIHYE KONG ,  JEONG-SOO LEE

IPC: G06F1/18 ,  G09G3/3275

Abstract: A display device includes a plurality of pixels and an upper signal line providing a data signal to the pixels. The upper signal line includes a first upper signal line including a first metal material, a second upper signal line including a second metal material which is different from the first metal material, and a third upper signal line including the first metal material. The first, second and third upper signal lines are arranged in order and respectively electrically connected to a plurality of connection lines including the second metal material. The connection lines are connected to a plurality of lower signal lines.

公开(公告)号：US20220189402A1

公开(公告)日：2022-06-16

申请号：US17684188

申请日：2022-03-01

Applicant: Samsung Display Co., Ltd.

Inventor： SEONG MIN WANG ,  JIHYE KONG ,  YONGHO YANG ,  JEONG-SOO LEE

IPC: G09G3/3233 ,  G09G3/20 ,  G09G3/3266 ,  G09G3/3291

Abstract: A pixel circuit includes a light-emitting element, a first transistor, a second transistor operating based on a first gate signal, a third transistor operating based on a second gate signal, a fourth transistor operating based on an initialization control signal, a fifth transistor operating based on an emission control signal, a sixth transistor operating based on the emission control signal, a seventh transistor, of which one terminal is connected to the light-emitting element, operating based on a bias control signal, an eighth transistor, of which one terminal is connected to the driving transistor, operating based on the bias control signal, a storage capacitor, and the light-emitting element. The circuit performs a display-scan operation where a driving time of a panel driving frame is a predetermined duration, and performs a display-scan operation and a self-scan operation where the driving time is longer than the predetermined duration.

公开(公告)号：US20210272860A1

公开(公告)日：2021-09-02

申请号：US17321980

申请日：2021-05-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： MOO SOON KO ,  JEONG-SOO LEE ,  JUNG HWA KIM

IPC: H01L21/66 ,  H01L27/12 ,  G09G3/3233 ,  G09G3/00 ,  H01L29/786

Abstract: A display device is disclosed. In one aspect, the display device includes a display area configured to display an image, a peripheral area neighboring the display area, and at least one test element group (TEG) including a test thin film transistor (TFT) formed in the peripheral area and a plurality of test pads electrically connected to the test TFT. The display device also includes first to third dummy circuits separated from the test TFT, each of the first to third dummy circuits including a plurality of first dummy semiconductor layers and a plurality of first dummy gate electrodes overlapping at least a portion of the first dummy semiconductor layers in the depth dimension of the display device.