公开(公告)号：US11989371B2

公开(公告)日：2024-05-21

申请号：US17825862

申请日：2022-05-26

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sanghyun Heo ,  Jiwoong Kim ,  Hyunggun Ma ,  Kyungtea Park ,  Seongan Park ,  Seongjoo Lee ,  Taehun Lee

IPC: G06F3/041 ,  G06F3/044 ,  H10K59/122

CPC classification number: G06F3/04182 ,  G06F3/041662 ,  G06F3/04164 ,  G06F3/0446 ,  G06F2203/04106 ,  H10K59/122

Abstract: A display device includes a display panel, an input sensor having a plurality of first sensing electrodes and a plurality of second sensing electrodes, and a readout circuit that includes a noise filter electrically connected to the plurality of first sensing electrodes and the plurality of second sensing electrodes to remove noise of a receiving signal received from the plurality of first sensing electrodes and the plurality of second sensing electrodes. The readout circuit determines which of the first sensing electrodes are influenced by a touch based on the receiving signal as influenced electrodes, during a first sensing mode. The readout circuit adjusts a passband of the noise filter based on the number of influenced electrode and transmits a transmitting signal to the influenced electrodes, during a second sensing mode.

公开(公告)号：US10937366B2

公开(公告)日：2021-03-02

申请号：US16578848

申请日：2019-09-23

Applicant: Samsung Display Co., Ltd.

Inventor： Jiwoong Kim ,  Ohjo Kwon

IPC: G09G3/325 ,  G09G3/3291

Abstract: A pixel circuit includes first to fifth transistors, an organic light emitting element, and a capacitor. The second transistor includes a control electrode receiving a first scan signal, an input electrode receiving a data voltage, and an output electrode connected to the control electrode of the first transistor. The third transistor includes a control electrode receiving a second scan signal, an input electrode receiving an initialization voltage, and an output electrode connected to the output electrode of the first transistor. The fourth transistor includes a control electrode receiving an emission signal, an input electrode receiving a first power voltage, and an output electrode connected to the input electrode of the first transistor. The fifth transistor includes a control electrode receiving a third scan signal, an input electrode receiving the data voltage, and an output electrode connected to the input electrode of the first transistor.

公开(公告)号：US10902780B2

公开(公告)日：2021-01-26

申请号：US16402169

申请日：2019-05-02

Applicant: Samsung Display Co., Ltd.

Inventor： Jeon Kyoo Kim ,  Oh Jo Kwon ,  Jiwoong Kim ,  JunYong Song ,  Dong Won Lee ,  Jae Keun Lim

IPC: G09G3/3266 ,  G09G3/3258 ,  G09G3/3275

Abstract: A display device includes data lines, scan lines, and pixels. Each of the pixels includes an organic light emitting diode, a first transistor (OLED), and a second transistor. The first transistor is electrically connected to an anode of the OLED. The second transistor is electrically connected to the first transistor, a scan line among the scan lines, and a data line among the data lines. The second transistors of the pixels may receive instances of a reference voltage from the data lines during a first period of a frame. The second transistors of the pixels may simultaneously receive instances of a turn-on scan signal from the scan lines during the first period of the frame. Cathodes of the OLEDs of the pixels may receive instances of a turn-off voltage for the OLEDs to turn off during the first period of the frame.

公开(公告)号：US11468847B2

公开(公告)日：2022-10-11

申请号：US17217293

申请日：2021-03-30

Applicant: Samsung Display Co., Ltd.

Inventor： Jiwoong Kim ,  Jaekeun Lim

IPC: G09G3/3275 ,  G09G3/3266

Abstract: A display device includes a display panel including a plurality of pixels, a plurality of data lines extending in a first direction and coupled to the plurality of pixels, a plurality of first scan lines extending in a second direction different from the first direction and coupled to the plurality of pixels, and a plurality of second scan lines extending in the first direction and coupled to the plurality of first scan lines, a data driver which provides data voltages to the plurality of pixels through the plurality of data lines, and a scan driver which sequentially provides a scan signal to the plurality of pixels on a row-by-row basis through the plurality of second scan lines and the plurality of first scan lines. The data driver and the scan driver are implemented with a data-scan integration chip which outputs the data voltages and the scan signal.

公开(公告)号：US11227546B2

公开(公告)日：2022-01-18

申请号：US16593651

申请日：2019-10-04

Applicant: Samsung Display Co., Ltd.

Inventor： Jiwoong Kim ,  Ohjo Kwon ,  Jeon Kyoo Kim ,  Jae Keun Lim

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

Abstract: An organic light emitting display device includes a display part including a plurality of scan lines, a plurality of data lines, a plurality of power source lines, and a plurality of pixels each including an organic light emitting diode, a driving transistor coupled to the organic light emitting diode and to a power source line of the power source lines, and a switching transistor coupled to a scan line of the scan lines and to a data line of the data lines, and a sensing driver configured to sample a sensing current from the power source line while a sensing data voltage is applied to one of the pixels, and to calculate a threshold voltage value of the driving transistor using the sensing current in a sensing mode.

公开(公告)号：US11929035B2

公开(公告)日：2024-03-12

申请号：US17939357

申请日：2022-09-07

Applicant: Samsung Display Co., Ltd.

Inventor： Jiwoong Kim ,  Jaekeun Lim

IPC: G09G3/3275 ,  G09G3/3266

CPC classification number: G09G3/3275 ,  G09G3/3266 ,  G09G2310/0278 ,  G09G2310/0289 ,  G09G2310/08

Abstract: A display device includes a display panel including a plurality of pixels, a plurality of data lines extending in a first direction and coupled to the plurality of pixels, a plurality of first scan lines extending in a second direction different from the first direction and coupled to the plurality of pixels, and a plurality of second scan lines extending in the first direction and coupled to the plurality of first scan lines, a data driver which provides data voltages to the plurality of pixels through the plurality of data lines, and a scan driver which sequentially provides a scan signal to the plurality of pixels on a row-by-row basis through the plurality of second scan lines and the plurality of first scan lines. The data driver and the scan driver are implemented with a data-scan integration chip which outputs the data voltages and the scan signal.

公开(公告)号：US11663946B2

公开(公告)日：2023-05-30

申请号：US17723820

申请日：2022-04-19

Applicant: Samsung Display Co., Ltd.

Inventor： Jiwoong Kim ,  Ohjo Kwon ,  Ikhyun Kim ,  Hyunggun Ma ,  Kyungtea Park ,  Seongjoo Lee ,  Keumdong Jung ,  Sanghyun Heo ,  Donghyun Hwang

IPC: G09G3/20

CPC classification number: G09G3/20 ,  G09G2310/027 ,  G09G2310/0286 ,  G09G2310/0289 ,  G09G2310/0291

Abstract: A driving chip includes a data channel block including a plurality of data channels, a scan channel block disposed in a first direction from the data channel block and including a plurality of scan channels, a data pad block disposed outside the data channel block and the scan channel block in the first direction and including a plurality of data pads which respectively receive a data signal from the plurality of data channels, and a scan pad block disposed outside the data channel block and the scan channel block in the first direction, disposed outside the data pad block in a second direction crossing the first direction and including a plurality of scan pads which respectively receive a scan signal from the scan channels.