公开(公告)号：US20220036816A1

公开(公告)日：2022-02-03

申请号：US17503781

申请日：2021-10-18

Applicant: Samsung Display Co., LTD.

Inventor： Jong Hee KIM ,  Hyuk KIM ,  An Su LEE

IPC: G09G3/32

Abstract: A scan driver includes scan stages, an n-th scan stage of the scan stages includes a first driving circuit, a second driving circuit, and an output circuit. The first driving circuit controls a voltage of a first driving node, based on an input signal and a voltage of a second driving node. The second driving circuit controls the voltage of the second driving node, based on a second clock signal and a first voltage. The output circuit outputs a first clock signal as a scan signal and a carry signal, and outputs a second voltage as the scan signal and the carry signal. The first driving circuit includes a first transistor including a gate electrode electrically connected to the second driving node, one electrode electrically connected to an input line that provides the input signal, and another electrode electrically connected to the first driving node.

公开(公告)号：US20240127748A1

公开(公告)日：2024-04-18

申请号：US18486014

申请日：2023-10-12

Applicant: Samsung Display Co., LTD.

Inventor： Hyuk KIM ,  Jong Hee KIM ,  Doo Young LEE ,  Chang Soo LEE ,  Sang Uk LIM ,  Bo Yong CHUNG

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2320/043

Abstract: A display device includes a scan driver to supply scan signals to first and second scan lines, a data driver to supply a data signal to data lines, a sensor connected to sensing lines, and pixels including a light-emitting element, a driving transistor to control an amount of current supplied to the light-emitting element in response to a voltage of a first node, a switching transistor between a j-th data line and the first node, and including a gate electrode coupled to an i-th first scan line, and a sensing transistor coupled between a second node, which is between the light-emitting element and the driving transistor, and a k-th sensing line, and including a gate electrode coupled to an i-th second scan line, and wherein the sensor is to sense deterioration information of the light-emitting element in a state in which the switching and sensing transistors are turned on.

公开(公告)号：US20210074203A1

公开(公告)日：2021-03-11

申请号：US16881757

申请日：2020-05-22

Applicant: Samsung Display Co., LTD.

Inventor： Jong Hee KIM ,  Hyuk KIM ,  An Su LEE

IPC: G09G3/32

Abstract: A scan driver includes scan stages, an n-th scan stage of the scan stages includes a first driving circuit, a second driving circuit, and an output circuit. The first driving circuit controls a voltage of a first driving node, based on an input signal and a voltage of a second driving node. The second driving circuit controls the voltage of the second driving node, based on a second clock signal and a first voltage. The output circuit outputs a first clock signal as a scan signal and a carry signal, and outputs a second voltage as the scan signal and the carry signal. The first driving circuit includes a first transistor including a gate electrode electrically connected to the second driving node, one electrode electrically connected to an input line that provides the input signal, and another electrode electrically connected to the first driving node.

公开(公告)号：US20220335881A1

公开(公告)日：2022-10-20

申请号：US17517734

申请日：2021-11-03

Applicant: Samsung Display Co., Ltd.

Inventor： Hyuk KIM ,  Yang Hwa CHOI ,  Jung Hwan HWANG

IPC: G09G3/32

Abstract: A display device of the present inventive concept includes a processor supplying grayscale data in active periods of frame periods and stopping supply of the grayscale data in blank periods of the frame periods; a switch controller generating a first switch control signal when a blank period is longer than a predetermined period, and generating a second switch control signal when the blank period ends; a power supply supplying a voltage different from a first power voltage to a first power line when the first switch control signal is received and supplying the first power voltage to the first power line when the second switch control signal is received; and pixels commonly connected to the first power line.

公开(公告)号：US20240087503A1

公开(公告)日：2024-03-14

申请号：US18199786

申请日：2023-05-19

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sang Uk LIM ,  Hyuk KIM ,  Doo Young LEE ,  Bo Yong CHUNG

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0842 ,  G09G2310/0275 ,  G09G2310/08

Abstract: A display device includes pixels each including a driving transistor and a light-emitting element, a sensing unit which generates a digital data by receiving a sensing voltage corresponding to a characteristic of a driving transistor from a predetermined pixel among the pixels during a sensing period, and generates sensing data using the digital data, and a timing controller which receives input data from an outside, corrects the input data using the sensing data and generates output data, and the sensing unit generates one sensing data using two or more digital data corresponding to the predetermined pixel.