公开(公告)号：US10886358B2

公开(公告)日：2021-01-05

申请号：US16780729

申请日：2020-02-03

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 ,  G09G3/3233 ,  H01L27/12 ,  G09G3/3266

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：US10720101B2

公开(公告)日：2020-07-21

申请号：US16036938

申请日：2018-07-17

Applicant: Samsung Display Co., Ltd.

Inventor： Sang Moo Choi ,  Jin Woo Park ,  Dong Sun Lee

IPC: G09G3/20 ,  G09G3/3233 ,  H01L27/32 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3291

Abstract: A display device includes pixels, an auxiliary pixel, a controller, and an emission driver. The pixels are coupled to data lines and emission control lines. The auxiliary pixel is coupled to an auxiliary data line and auxiliary emission control lines. The controller is configured to measure an auxiliary current supplied from the auxiliary pixel through an auxiliary line, and to control a width of an emission start signal based on an accumulation amount of the auxiliary current. The emission driver is configured to, based on the emission start signal, supply emission control signals to the pixels and the auxiliary pixel through the emission control lines and the auxiliary emission control lines.

公开(公告)号：US10380943B2

公开(公告)日：2019-08-13

申请号：US15907144

申请日：2018-02-27

Applicant: Samsung Display Co., Ltd.

Inventor： Sang Moo Choi ,  Ji Hyun Ka ,  Won Kyu Kwak ,  Jin Jeon ,  Jin Tae Jeong

IPC: G09G5/10 ,  G09G3/3233

Abstract: An organic light emitting display device includes pixels connected to scan lines, data lines, and emission control lines to emit light components in response to amounts of current that flow from a first driving power source to a second driving power source, a sensing unit connected between the first or second driving power source and the pixels to measure to at least one of current and voltage, a controller to sense a control signal in response to at least one of the current and the voltage measured by the sensing unit, a timing controller to supply a plurality of emission start signals with different widths in a one frame period in response to the control signal when the organic light emitting display device is driven at a low frequency, and an emission driver to supply emission control signals to the emission control lines in response to the emission start signals.

公开(公告)号：US20190027093A1

公开(公告)日：2019-01-24

申请号：US16036938

申请日：2018-07-17

Applicant: Samsung Display Co., Ltd.

Inventor： Sang Moo Choi ,  Jin Woo Park ,  Dong Sun Lee

IPC: G09G3/3233 ,  H01L27/32 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3291

Abstract: A display device includes pixels, an auxiliary pixel, a controller, and an emission driver. The pixels are coupled to data lines and emission control lines. The auxiliary pixel is coupled to an auxiliary data line and auxiliary emission control lines. The controller is configured to measure an auxiliary current supplied from the auxiliary pixel through an auxiliary line, and to control a width of an emission start signal based on an accumulation amount of the auxiliary current. The emission driver is configured to, based on the emission start signal, supply emission control signals to the pixels and the auxiliary pixel through the emission control lines and the auxiliary emission control lines.

公开(公告)号：US12069914B2

公开(公告)日：2024-08-20

申请号：US17532253

申请日：2021-11-22

Applicant: Samsung Display Co., Ltd.

Inventor： Sung Hwan Kim ,  Won Kyu Kwak ,  Sang Moo Choi ,  Ji-Hyun Ka ,  Chul Kyu Kang ,  Dong Wook Kim ,  Won Se Lee

IPC: H01L27/12 ,  H10K59/121 ,  H10K59/131 ,  H10K71/00

CPC classification number: H10K59/131 ,  H01L27/1222 ,  H01L27/124 ,  H10K59/121 ,  H10K71/00

Abstract: An organic light emitting diode display includes a substrate, a semiconductor layer on the substrate, the semiconductor layer including a doped area and an undoped area, a first insulation layer that covers the semiconductor layer, a first conductor on the first insulation layer, a second insulation layer that covers the first conductor, a second conductor on the second insulation layer, a third insulation layer that covers the second conductor, and a third conductor on the third insulation layer, wherein, in the semiconductor layer that overlaps the first conductor, the doped area is between undoped areas.

公开(公告)号：US11889726B2

公开(公告)日：2024-01-30

申请号：US17139919

申请日：2020-12-31

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 ,  H10K59/131 ,  G09G3/3225 ,  G09G3/3233 ,  H01L27/12 ,  H10K59/121 ,  H10K77/10 ,  G09G3/3266

CPC classification number: H10K59/131 ,  G09G3/3225 ,  G09G3/3233 ,  H01L27/1244 ,  H10K59/1213 ,  H10K77/111 ,  G09G3/3266 ,  G09G2300/0426 ,  G09G2300/0809 ,  G09G2310/0297 ,  H01L27/1214

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：US11145253B2

公开(公告)日：2021-10-12

申请号：US16506434

申请日：2019-07-09

Applicant: Samsung Display Co., Ltd.

Inventor： Chul Kyu Kang ,  Sang Moo Choi ,  Soo Hee Oh ,  Dongsun Lee

IPC: G09G3/3233 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3283 ,  G09G3/3291 ,  G09G3/36

Abstract: A display device includes a scan driver configured to provide a scan signal to the scan line, the scan signal having an ON voltage for turning on a transistor in a plurality of horizontal periods including a current horizontal period and at least one previous horizontal period corresponding to the scan signal, and a grayscale data processor configured to correct current grayscale data of a current pixel corresponding to the current horizontal period to generate correction grayscale data based on previous grayscale data of a previous pixel corresponding to the previous horizontal period, the current pixel included in a same pixel column as the previous pixel.

公开(公告)号：US11030943B2

公开(公告)日：2021-06-08

申请号：US16697690

申请日：2019-11-27

Applicant: Samsung Display Co., Ltd.

Inventor： Chul 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：US10997922B2

公开(公告)日：2021-05-04

申请号：US16570476

申请日：2019-09-13

Applicant: Samsung Display Co., Ltd.

Inventor： Soo Hee Oh ,  Chul 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：US10937369B2

公开(公告)日：2021-03-02

申请号：US16681265

申请日：2019-11-12

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/3258

Abstract: Provided herein may be a stage and an emission control driver having the same. The stage may include an output unit configured to supply a voltage of a first or second power supply to a first output terminal depending on voltages of first and second nodes, an input unit configured to control the voltages of the second node and a third node, a first signal processing unit configured to control the voltage of the first node, and supply a voltage corresponding to the first node to a second output terminal, a second signal processing unit including a second capacitor coupled between the third node and a fifth node, the second signal processing unit being configured to control the voltage of the first node, and control a potential difference between opposite terminals of the second capacitor, and a third signal processing unit configured to control the voltage of the second node.