公开(公告)号：US11881169B2

公开(公告)日：2024-01-23

申请号：US17970261

申请日：2022-10-20

Applicant: Samsung Display Co., Ltd.

Inventor： Soongi Kwon ,  Wonkyu Kwak ,  Jihyun Ka ,  Chulkyu Kang ,  Yangwan Kim ,  Kimyeong Eom ,  Kyonghwan Oh ,  Minku Lee ,  Jintae Jeong

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861

Abstract: A pixel capable of adjusting a threshold voltage of a driving transistor, the pixel including: a display element configured to emit light during an emission period and including an anode and a cathode, the first transistor including an upper gate and a lower gate and configured to control a magnitude of a driving current flowing to the display element, a storage capacitor connected to the upper gate of the first transistor, and a second transistor configured to be turned on during a data writing period to transmit a data voltage to the first transistor, wherein a lower gate-source voltage of the first transistor has a first voltage level in the data writing period and a second voltage level in the emission period.

公开(公告)号：US12073791B2

公开(公告)日：2024-08-27

申请号：US17748926

申请日：2022-05-19

Applicant: Samsung Display Co., Ltd.

Inventor： Haijung In ,  Chulkyu Kang ,  Soongi Kwon ,  Minjeong Kim ,  Kimyeong Eom

IPC: G09G3/3258

CPC classification number: G09G3/3258 ,  G09G2300/0426 ,  G09G2310/08

Abstract: A driver includes a stage that includes a first controller, a second controller, and a first output unit. The first controller controls a voltage level of a first node. The second controller controls voltage levels of a second node and a third node to be equal to the voltage level of a first node or an opposite voltage level of the voltage level of the first node, and controls a voltage level of a fifth node to be equal to the opposite voltage level of the voltage level of the first node. The first output unit may output a gate control signal, which has a first voltage when the second node and the third node is in an on-voltage level state, and has a second voltage when the fifth node is in an on-voltage level state.

公开(公告)号：US11955079B2

公开(公告)日：2024-04-09

申请号：US17891948

申请日：2022-08-19

Applicant: Samsung Display Co., Ltd.

Inventor： Soongi Kwon ,  Jihyun Ka ,  Minjeong Kim ,  Minku Lee ,  Seunghee Lee ,  Hyeongjun Jin

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/043 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2320/0233

Abstract: A pixel includes a display element, a driving transistor, a storage capacitor, a scan transistor, and a gate control circuit. The display element may emit light for an emission period, wherein the display element includes an anode and a cathode. The driving transistor may control an amount of a driving current flowing through the display element, wherein the driving transistor includes a first gate and a second gate. The storage capacitor is electrically connected to the first gate of the driving transistor. The scan transistor may be turned on for a data-write period for transferring a data voltage to the driving transistor. The lower gate control circuit may electrically connect the second gate of the driving transistor to the anode of the display element for the emission period, and may apply a bias voltage to the second gate of the driving transistor for the data-write period.

公开(公告)号：US20240071305A1

公开(公告)日：2024-02-29

申请号：US18226770

申请日：2023-07-27

Applicant: Samsung Display Co., Ltd.

Inventor： Minjoo Kim ,  Jihyun Ka ,  Chulkyu Kang ,  Soongi Kwon ,  Sujin Kim ,  Minwoo Byun ,  Seoni Jeong ,  Chaehan Hyun ,  Sungchan Hwang

IPC: G09G3/3233 ,  G09G3/3275

CPC classification number: G09G3/3233 ,  G09G3/3275 ,  G09G2320/0233

Abstract: Provided is a display apparatus in which initialization and compensation of a pixel is implemented through a pixel including a thin film transistor connected to a node between a driving transistor and a light emitting diode.

公开(公告)号：US20240324348A1

公开(公告)日：2024-09-26

申请号：US18531709

申请日：2023-12-07

Applicant: Samsung Display Co., Ltd.

Inventor： Junyoung Min ,  Soongi Kwon ,  Minwoo Byun ,  Junwon Choi ,  Junyong An

IPC: H10K59/131 ,  G09G3/3233

CPC classification number: H10K59/131 ,  G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0286 ,  G09G2310/08

Abstract: A display apparatus includes a substrate including a display area and a peripheral area outside the display area, a power supply line arranged in the peripheral area, a gate driving circuit arranged between the power supply line and the display area and including a plurality of stages arranged in a direction, and a signal line arranged in the peripheral area, electrically connected to a first stage from among the plurality of stages of the gate driving circuit, and configured to transmit a start signal, wherein the signal line overlaps the power supply line in a plan view and is arranged between the substrate and the power supply line.

公开(公告)号：US20230335062A1

公开(公告)日：2023-10-19

申请号：US18128956

申请日：2023-03-30

Applicant: Samsung Display Co., Ltd.

Inventor： Haijung In ,  Chulkyu Kang ,  Kimyeong Eom ,  Soongi Kwon ,  Minjeong Kim

IPC: G09G3/3266 ,  G09G3/3258

CPC classification number: G09G3/3266 ,  G09G3/3258 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2320/0223

Abstract: A scan driver includes a stage, wherein the stage includes: a first output controller including a first pull-up transistor and a first pull-down transistor, wherein the first pull-up transistor has a gate connected to a first control node, and the first pull-down transistor has a gate connected to a second control node; a second output controller including a second pull-up transistor and a second pull-down transistor, wherein the second pull-up transistor has a gate connected to the first control node, and the second pull-down transistor has a gate connected to the second control node; and a stabilizer configured to maintain the first control node at an off-voltage level based on the second control node being at an on-voltage level.

公开(公告)号：US20230140806A1

公开(公告)日：2023-05-04

申请号：US17748926

申请日：2022-05-19

Applicant: Samsung Display Co., Ltd.

Inventor： Haijung In ,  Chulkyu Kang ,  Soongi Kwon ,  Minjeong Kim ,  Kimyeong Eom

IPC: G09G3/3258

Abstract: A driver includes a stage that includes a first controller, a second controller, and a first output unit. The first controller controls a voltage level of a first node. The second controller controls voltage levels of a second node and a third node to be equal to the voltage level of a first node or an opposite voltage level of the voltage level of the first node, and controls a voltage level of a fifth node to be equal to the opposite voltage level of the voltage level of the first node. The first output unit may output a gate control signal, which has a first voltage when the second node and the third node is in an on-voltage level state, and has a second voltage when the fifth node is in an on-voltage level state.

公开(公告)号：US12198627B2

公开(公告)日：2025-01-14

申请号：US18226770

申请日：2023-07-27

Applicant: Samsung Display Co., Ltd.

Inventor： Minjoo Kim ,  Jihyun Ka ,  Chulkyu Kang ,  Soongi Kwon ,  Sujin Kim ,  Minwoo Byun ,  Seoni Jeong ,  Chaehan Hyun ,  Sungchan Hwang

IPC: G09G3/30 ,  G09G3/3233 ,  G09G3/3275

Abstract: Provided is a display apparatus in which initialization and compensation of a pixel is implemented through a pixel including a thin film transistor connected to a node between a driving transistor and a light emitting diode.

公开(公告)号：US20240420641A1

公开(公告)日：2024-12-19

申请号：US18815757

申请日：2024-08-26

Applicant: Samsung Display Co., Ltd.

Inventor： Haijung In ,  Chulkyu Kang ,  Soongi Kwon ,  Minjeong Kim ,  Kimyeong Eom

IPC: G09G3/3258

Abstract: A driver includes a stage that includes a first controller, a second controller, and a first output unit. The first controller controls a voltage level of a first node. The second controller controls voltage levels of a second node and a third node to be equal to the voltage level of a first node or an opposite voltage level of the voltage level of the first node, and controls a voltage level of a fifth node to be equal to the opposite voltage level of the voltage level of the first node. The first output unit may output a gate control signal, which has a first voltage when the second node and the third node is in an on-voltage level state, and has a second voltage when the fifth node is in an on-voltage level state.

公开(公告)号：US20230290305A1

公开(公告)日：2023-09-14

申请号：US17891948

申请日：2022-08-19

Applicant: Samsung Display Co., Ltd.

Inventor： Soongi Kwon ,  Jihyun Ka ,  Minjeong Kim ,  Minku Lee ,  Seunghee Lee ,  Hyeongjun Jin

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2320/0233

Abstract: A pixel includes a display element, a driving transistor, a storage capacitor, a scan transistor, and a gate control circuit. The display element may emit light for an emission period, wherein the display element includes an anode and a cathode. The driving transistor may control an amount of a driving current flowing through the display element, wherein the driving transistor includes a first gate and a second gate. The storage capacitor is electrically connected to the first gate of the driving transistor. The scan transistor may be turned on for a data-write period for transferring a data voltage to the driving transistor. The lower gate control circuit may electrically connect the second gate of the driving transistor to the anode of the display element for the emission period, and may apply a bias voltage to the second gate of the driving transistor for the data-write period.