公开(公告)号：US20210134213A1

公开(公告)日：2021-05-06

申请号：US17005323

申请日：2020-08-28

Applicant: Samsung Display Co., Ltd.

Inventor： Hwan Soo JANG

IPC: G09G3/32

Abstract: A light emission control driver includes stages, each including: an input circuit controlling voltages of first and second nodes (N1, N2) based on a first clock signal (CS) and one of a start signal and a carry signal; a first main circuit controlling a voltage of a third node (N3) based on the voltage of N1 and a second CS; a second main circuit controlling the voltage of N3 based on the voltage of N2; an output circuit controlling output of an emission control signal (ECS) based on the voltages of N2 and N3; a first auxiliary circuit controlling a low level output of the ECS from a first low level to a second low level based on the second CS; and a second auxiliary circuit controlling the low level output in a single step from a high level to the second low level based on the voltage of N2.

公开(公告)号：US20200212161A1

公开(公告)日：2020-07-02

申请号：US16813588

申请日：2020-03-09

Applicant: Samsung Display Co., Ltd.

Inventor： Sang Moo CHOI ,  Mi Hae KIM ,  Sang Won SEOK ,  Hwan Soo JANG ,  Su Jin LEE

IPC: H01L27/32 ,  H01L51/52 ,  G09G3/3258

Abstract: An organic light emitting display device includes a substrate having a display area and a peripheral area; a pad disposed on the substrate in the peripheral area; a first conductive pattern disposed on one side of the display area in the peripheral area and electrically connected to the pad; a second conductive pattern disposed on the substrate in the peripheral area and disposed on an opposite side of the first conductive pattern; a first connection electrode disposed on the first conductive pattern in the peripheral area and electrically connected to the first conductive pattern; and a second connection electrode disposed on the second conductive pattern in the peripheral area and electrically connected to the second conductive pattern. A cathode electrode of a light emitting diode is disposed on the first and second connection electrodes and electrically connected to the first and second connection electrodes.

公开(公告)号：US20240420627A1

公开(公告)日：2024-12-19

申请号：US18740095

申请日：2024-06-11

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sung Hwan KIM ,  Won Kyu KWAK ,  Hwan Soo JANG ,  Seo Won CHOE

IPC: G09G3/32 ,  G09G3/3266 ,  G09G3/3275

Abstract: A display device includes: a power supply configured to supply a voltage of first driving power to a first power line, and supply a voltage of second driving power to a second power line; a display panel including pixels connected to scan lines and data lines, and each including a first transistor configured to control current supplied from the first power line to the second power line via a light emitting element; and a timing controller configured to supply a luminance control signal to the pixels. Each of the pixels includes: a control transistor connected in parallel to some sub-transistors of the corresponding first transistor, and configured to be turned on in response to receipt of a luminance control signal having an enabled state. The power supply changes the voltage of the second driving power when the luminance control signal having the enabled state is supplied to the pixels.

公开(公告)号：US20240290273A1

公开(公告)日：2024-08-29

申请号：US18582592

申请日：2024-02-20

Applicant: Samsung Display Co., Ltd.

Inventor： Hwan Soo JANG

IPC: G09G3/3258

CPC classification number: G09G3/3258 ,  G09G2300/08 ,  G09G2310/06

Abstract: A stage circuit including: an output circuit for supplying a voltage of a first or second power supply to an output terminal in response to voltages of first and second nodes; an input circuit for controlling voltages of the second node and a third node; a first signal processor for controlling the voltage of the first node; a second signal processor configured to control the voltage of the first node in response to an output voltage of a third signal processor and a signal supplied to a third input terminal; and the third signal processor for controlling the voltage of the second node. The third signal processor includes: a third capacitor coupled between the first power supply and the second node; and a third transistor coupled between the first power supply and the third input terminal, and including a gate electrode coupled to the second node.

公开(公告)号：US20210296405A1

公开(公告)日：2021-09-23

申请号：US17339770

申请日：2021-06-04

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sun Ja KWON ,  Won Kyu KWAK ,  Hwan Soo JANG ,  Seung Yeon CHO ,  Hyun Ae PARK

IPC: H01L27/32 ,  G09G3/3291

Abstract: A display device includes a substrate, a pixel area, and a plurality of data lines. The substrate includes display and non-display areas. The pixel area is in the display area and includes a first pixel column and a second pixel column. The pixels in the first and second columns emit light of different colors. The data lines are respectively coupled to the first pixel column and the second pixel column. In the non-display area, a data line is coupled to one of the first or second pixel columns corresponding to a color on which influence of a resistance is greater than on another color. The data lines has a line or contact structure with a resistance less than a resistance of a line or contact structure of a remaining data line coupled to a remaining pixel column.

公开(公告)号：US20190172888A1

公开(公告)日：2019-06-06

申请号：US16034180

申请日：2018-07-12

Applicant: Samsung Display Co., Ltd.

Inventor： Sang Moo CHOI ,  Mi Hae KIM ,  Sang Won SEOK ,  Hwan Soo JANG ,  Su Jin LEE

IPC: H01L27/32 ,  H01L51/52 ,  G09G3/3266 ,  G09G3/3291 ,  G09G3/3258

Abstract: The organic light emitting display device includes a substrate having a display area in which a plurality of pixels including an organic light emitting diode is arranged and a peripheral area surrounding the display area; a pad disposed on the substrate in the peripheral area; a first conductive pattern disposed on one side of the display area in the peripheral area and electrically connected to the pad; a second conductive pattern disposed on the substrate in the peripheral area and disposed on an opposite side of the first conductive pattern with the display area interposed between the first conductive pattern and the second conductive pattern; a first connection electrode disposed on the first conductive pattern in the peripheral area and electrically connected to the first conductive pattern; and a second connection electrode disposed on the second conductive pattern in the peripheral area and electrically connected to the second conductive pattern, wherein a cathode electrode of the organic light emitting diode is disposed on the first connection electrode and the second connection electrode and electrically connected to the first connection electrode and the second connection electrode.

公开(公告)号：US20180083072A1

公开(公告)日：2018-03-22

申请号：US15609480

申请日：2017-05-31

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sun Ja KWON ,  Won Kyu KWAK ,  Hwan Soo JANG ,  Seung Yeon CHO ,  Hyun Ae PARK

IPC: H01L27/32

CPC classification number: H01L27/3211 ,  G09G3/3291 ,  G09G2300/0426 ,  G09G2320/0223 ,  H01L27/3262

Abstract: A display device includes a substrate, a pixel area, and a plurality of data lines. The substrate includes display and non-display areas. The pixel area is in the display area and includes a first pixel column and a second pixel column. The pixels in the first and second columns emit light of different colors. The data lines are respectively coupled to the first pixel column and the second pixel column. In the non-display area, a data line is coupled to one of the first or second pixel columns corresponding to a color on which influence of a resistance is greater than on another color. The data lines has a line or contact structure with a resistance less than a resistance of a line or contact structure of a remaining data line coupled to a remaining pixel column.

公开(公告)号：US20240233605A1

公开(公告)日：2024-07-11

申请号：US18418328

申请日：2024-01-21

Applicant: Samsung Display Co., Ltd.

Inventor： Kyong Hwan OH ,  Ji Hyun KA ,  Ki Myeong EOM ,  Hai Jung IN ,  Jin JEON ,  Won Kyu KWAK ,  Hyun LEE ,  Hwan Soo JANG ,  Jin Tae JEONG

IPC: G09G3/20 ,  G09G3/3233

CPC classification number: G09G3/2092 ,  G09G3/3233 ,  G09G2310/0251 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2310/08 ,  G09G2340/0435

Abstract: A display device including pixels coupled to first scan lines, second scan lines, emission control lines, and data lines; a first scan driver to supply a scan signal to each of the first scan lines at a first frequency to drive the display device at a first driving frequency, and to supply the scan signal to each of the first scan lines at a second frequency to drive the display device at a second driving frequency lower than the first driving frequency; a second scan driver to supply a scan signal to each of the second scan lines at the first frequency to drive the display device at the first driving frequency, and to supply the scan signal to each of the second scan lines at the second frequency to drive the display device at the second driving frequency; an emission driver to supply an emission control signal to each of the emission control lines at the first frequency; and a data driver to supply a data signal to each of the data lines in response to the scan signal supplied to each of the first scan lines.

公开(公告)号：US20230005428A1

公开(公告)日：2023-01-05

申请号：US17939926

申请日：2022-09-07

Applicant: Samsung Display Co., Ltd.

Inventor： Hwan Soo JANG

IPC: G09G3/3258

Abstract: A stage circuit including: an output circuit for supplying a voltage of a first or second power supply to an output terminal in response to voltages of first and second nodes; an input circuit for controlling voltages of the second node and a third node; a first signal processor for controlling the voltage of the first node; a second signal processor configured to control the voltage of the first node in response to an output voltage of a third signal processor and a signal supplied to a third input terminal; and the third signal processor for controlling the voltage of the second node. The third signal processor includes: a third capacitor coupled between the first power supply and the second node; and a third transistor coupled between the first power supply and the third input terminal, and including a gate electrode coupled to the second node.

公开(公告)号：US20210091168A1

公开(公告)日：2021-03-25

申请号：US17115649

申请日：2020-12-08

Applicant: Samsung Display Co., Ltd.

Inventor： Sang Moo CHOI ,  Mi Hae KIM ,  Sang Won SEOK ,  Hwan Soo JANG ,  Su Jin LEE

IPC: H01L27/32 ,  H01L51/52 ,  G09G3/3258

Abstract: An organic light emitting display device includes a substrate having a display area and a peripheral area; a pad disposed on the substrate in the peripheral area; a first conductive pattern disposed on one side of the display area in the peripheral area and electrically connected to the pad; a second conductive pattern disposed on the substrate in the peripheral area and disposed on an opposite side of the first conductive pattern; a first connection electrode disposed on the first conductive pattern in the peripheral area and electrically connected to the first conductive pattern; and a second connection electrode disposed on the second conductive pattern in the peripheral area and electrically connected to the second conductive pattern. A cathode electrode of a light emitting diode is disposed on the first and second connection electrodes and electrically connected to the first and second connection electrodes.