公开(公告)号：US11436979B2

公开(公告)日：2022-09-06

申请号：US16505708

申请日：2019-07-09

Applicant: Samsung Display Co., Ltd.

Inventor： Sung Hwan Kim ,  Sang Moo Choi ,  Dae Hyun Kim ,  Soo Hee Oh ,  Dong Sun Lee

IPC: G09G3/3266

Abstract: A pixel circuit includes: an organic light emitting diode (OLED); a first transistor having first and second electrodes and a first gate electrode; a second transistor connected between a data line and the first electrode, controlled by a first scan line; a third transistor connected between the second electrode and the a electrode of the first transistor, controlled by the first scan line; a fourth transistor connected between the first gate electrode and a first initialization voltage line, controlled by a second scan line; a fifth transistor connected between a power line and first electrode, controlled by a first emission line; a sixth transistor connected between the second electrode and the OLED and controlled by a second emission line; and a storage capacitor connected between the first gate electrode and the power line, wherein the first emission line and the second emission line are located at different nodes.

公开(公告)号：US10885842B2

公开(公告)日：2021-01-05

申请号：US16513627

申请日：2019-07-16

Applicant: Samsung Display Co., Ltd.

Inventor： Chul Kyu Kang ,  Sang Moo Choi ,  Dongsun Lee

IPC: G09G3/32 ,  G09G3/325 ,  G09G3/3266

Abstract: A display device includes: a display panel including: a scan line, a data line, and an emission control line; a pixel including: a plurality of transistors connected to the scan line, the data line and the emission control line; and an organic light-emitting diode driven by the plurality of transistors, and a scan driver configured to: in response to an image mode being a moving image mode, generate a first mode scan signal having a turning-on voltage of a transistor for a plurality of horizontal periods; and in response to the image mode being a static image mode, generate a second mode scan signal having the turning-on voltage for a single horizontal period.

公开(公告)号：US10804350B2

公开(公告)日：2020-10-13

申请号：US15955626

申请日：2018-04-17

Applicant: Samsung Display Co., Ltd.

Inventor： Sang Moo Choi ,  Seung Kyu Lee

IPC: G09G3/3233 ,  H01L27/32 ,  H01L51/52 ,  G09G3/3266

Abstract: An organic light-emitting display device including: pixels disposed on each of horizontal lines, each of the pixels includes an organic light-emitting diode, and an auxiliary transistor coupled between an anode electrode of the organic light-emitting diode and an auxiliary power source; and at least one reference transistor disposed on each of the horizontal lines and coupled between a reference power source and at least one of the pixels. The auxiliary transistor and the reference transistor may be simultaneously turned on.

公开(公告)号：US10796642B2

公开(公告)日：2020-10-06

申请号：US15864914

申请日：2018-01-08

Applicant: Samsung Display Co., Ltd.

Inventor： Sang Moo Choi ,  Min Woo Byun ,  Chae Han Hyun ,  Min Kyu Woo ,  Jae Du Noh ,  Jae Sic Lee ,  Seung Yeon Cho

IPC: G09G3/3266 ,  G09G3/3233

Abstract: A display device includes first pixels in a first pixel area, a first scan driver configured to supply first scan signals to first scan lines, second pixels in a second pixel area, a second scan driver configured to supply second scan signals to second scan lines, third pixels in a third pixel area, a third scan driver configured to supply third scan signals to third scan lines, and a timing controller configured to supply a first start signal to the first scan driver, a second start signal to the second scan driver, and a third start signal to the third scan driver, wherein an order in which the first, second, and third start signal are supplied in a first mode, and an order in which the first, second, and third start signal are supplied in a second mode that is different from the first mode, are different from each other.

公开(公告)号：US10658444B2

公开(公告)日：2020-05-19

申请号：US16220670

申请日：2018-12-14

Applicant: Samsung Display Co., Ltd.

Inventor： Chul Kyu Kang ,  Won Kyu Kwak ,  Sang Moo Choi

IPC: H01L27/32

Abstract: A pixel and a display device having the pixel, the pixel including: a light emitting element; a first transistor configured to control, in response to a voltage of a first node coupled to a gate electrode thereof, current to be supplied from a first power supply coupled with a first electrode thereof to a second power supply via the light emitting element; a storage capacitor coupled between the first node and the first power supply; a second transistor coupled between a data line and the first transistor; an initialization transistor coupled between the light emitting element and an initialization power supply to transmit a voltage of the initialization power supply the light emitting element; and a dummy transistor coupled between the light emitting element and the initialization power supply, and including a first electrode and a second electrode that are coupled with each other.

公开(公告)号：US10553667B2

公开(公告)日：2020-02-04

申请号：US16175753

申请日：2018-10-30

Applicant: Samsung Display Co., Ltd.

Inventor： Han Sung Bae ,  Se Ho Kim ,  Sun Ja Kwon ,  Dong Wook Kim ,  Jun Yong An ,  Sang Moo Choi ,  Jun Won Choi

IPC: H01L27/32 ,  H01L51/00 ,  G09G3/3225 ,  G09G3/3266 ,  H01L27/12

Abstract: A display device, includes: a display area including an upper side, a lower side, a left side, a right side, and inclined corner portions where the upper, lower, left, and right sides meet; a demultiplexing circuit unit adjacent to the lower side of the display area and the corner portion connected thereto; and a scan transmission line which extends toward the display area from an outer side of the left side and overlaps with the demultiplexing circuit unit outside the corner portion, wherein the demultiplexing circuit unit includes a demultiplexer transistor, and the scan transmission line is formed of a different conductive layer from an electrode of a demultiplexer transistor.

公开(公告)号：US20130113774A1

公开(公告)日：2013-05-09

申请号：US13666374

申请日：2012-11-01

Applicant: Samsung Display Co., Ltd.

Inventor： Sang Moo Choi ,  JinKoo Chung ,  Junho Choi ,  Seong-Min Kim

IPC: G09G3/32 ,  G06F3/038

CPC classification number: H01L51/5234 ,  H01L27/3276 ,  H01L51/5225

Abstract: An organic electro luminescence display is disclosed. In one embodiment, the display includes a substrate, an organic light emitting diode disposed on the substrate and including a pixel electrode, an organic light emitting layer, and a common electrode, a scan interconnection disposed on the substrate and providing a scan signal to the organic light emitting diode. The display may further include a data interconnection disposed on the substrate and providing a data signal to the organic light emitting diode, and a power interconnection disposed on the substrate and providing a power to the organic light emitting diode. The common electrode has an opening which overlaps with at least a portion of the scan interconnection, the data interconnection, and the power interconnection.

Abstract translation: 公开了一种有机电致发光显示器。 在一个实施例中，显示器包括衬底，设置在衬底上的有机发光二极管，包括像素电极，有机发光层和公共电极，布置在衬底上的扫描互连件，并向扫描信号提供扫描信号 有机发光二极管。 显示器还可以包括设置在基板上并且向有机发光二极管提供数据信号的数据互连，以及布置在基板上并为有机发光二极管提供电力的电力互连。 公共电极具有与扫描互连，数据互连和电力互连的至少一部分重叠的开口。

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.