公开(公告)号：US11468826B2

公开(公告)日：2022-10-11

申请号：US17339808

申请日：2021-06-04

Applicant: Samsung Display Co., Ltd.

Inventor： Chui Kyu Kang ,  Sung Hwan Kim ,  Soo Hee Oh ,  Dong Sun Lee ,  Sang Moo Choi

IPC: G09G3/3266 ,  G09G3/32

Abstract: A scan driver includes: a first transistor having a first electrode coupled to an output scan line, a second electrode coupled to a first power line, and a gate electrode coupled to a first node; a second transistor having a first electrode coupled to a first clock line, a second electrode coupled to the output scan line, and a gate electrode coupled to a second node; a third transistor having a first electrode coupled to the first node, a second electrode coupled to a first input scan line, and a gate electrode coupled to a second clock line; and a fourth transistor having a first electrode coupled to the second node and a second electrode and a gate electrode, which are coupled to a second input scan line, wherein the first input scan line and the second input scan line are different from each other.

公开(公告)号：US11450281B2

公开(公告)日：2022-09-20

申请号：US17245316

申请日：2021-04-30

Applicant: Samsung Display Co., Ltd.

Inventor： Soo Hee Oh ,  Chui Kyu Kang ,  Dong Sun Lee ,  Sang Moo Choi

IPC: G09G3/3266 ,  G09G3/3291 ,  G06F1/08

Abstract: A stage and a scan driver including the same for supplying a scan signal using a stage formed of P-type transistors to prevent output of an unwanted noise in a period where the scan signal is not supplied.

公开(公告)号：US11151948B2

公开(公告)日：2021-10-19

申请号：US16450719

申请日：2019-06-24

Applicant: Samsung Display Co., Ltd.

Inventor： Dong Sun Lee ,  Sang Moo Choi ,  Chui Kyu Kang ,  Soo Hee Oh

IPC: G09G3/20 ,  G09G3/3291 ,  G09G3/3266 ,  G09G3/3225 ,  G09G3/3233

Abstract: An organic light emitting display device includes: a pixel unit including a plurality of pixels; a scan driver for sequentially supplying a scan signal to the pixels through scan lines, wherein the scan signal includes k (k is a natural number) bias pulses for applying a bias voltage and one write pulse for applying a data voltage; a data corrector for correcting a first grayscale value that is a grayscale value of a (j, i) pixel (i and j are natural numbers) among the pixels, based on a difference between the first grayscale value and a second grayscale value that is a grayscale value of a (j+2k, i) pixel among the pixels; and a data driver for supplying a data voltage corresponding to each of the grayscale values to the pixel unit through a plurality of data lines.

公开(公告)号：US10950172B2

公开(公告)日：2021-03-16

申请号：US15043389

申请日：2016-02-12

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Young Jin Cho ,  Chui Kyu Kang ,  Young In Hwang

IPC: G09G3/3233 ,  G09G3/3258

Abstract: A pixel includes an organic light emitting diode, a first transistor configured to control an amount of a current flowing from a first power to a second power via a second node and the organic light emitting diode in response to a voltage of a first node, a first capacitor between the first node and a third node, a second capacitor between the second node and the third node, a second transistor between the third node and a data line and including a gate electrode coupled to a scan line, and a third transistor between the first power and the second node and including a gate electrode coupled to a first emission control line.