公开(公告)号：US20230073395A1

公开(公告)日：2023-03-09

申请号：US17986675

申请日：2022-11-14

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyung Gun MA ,  Oh Jo KWON ,  Ji Woong KIM ,  Jun Yong SONG ,  Seong Joo LEE ,  Sang Hyun HEO

IPC: G09G3/32

Abstract: A digital-analog converter of the disclosure converts digital image data to generate analog data signals. The digital-analog converter includes a voltage divider which generates a plurality of gamma reference voltages based on a first reference voltage and a second reference voltage; a global ramp including a plurality of gamma decoders which generates a plurality of global gamma voltages based on the gamma reference voltages; a decoder which selects one of the global gamma voltages according to the digital image data to generate the analog data signals; and a ramp controller which turns off at least some of the gamma decoders based on the digital image data.

公开(公告)号：US20250006097A1

公开(公告)日：2025-01-02

申请号：US18611074

申请日：2024-03-20

Applicant: Samsung Display Co., Ltd.

Inventor： Sang Hyun HEO ,  Joon Chul GOH ,  Oh Jo KWON ,  Dong Soo KIM ,  Hyung Gun MA ,  Jung Hun YI

IPC: G09G3/20 ,  G09G3/3233 ,  H10K59/131

Abstract: A pixel may include: a first transistor including a second electrode, a first electrode electrically connected to a first power line, and a gate electrode connected to a first node; a second transistor including a second electrode, a first electrode electrically connected to a data line, and a gate electrode electrically connected to a first scan line; a third transistor connected between the first node and the data line, and including a gate electrode electrically connected to a second scan line; a first capacitor including a first electrode connected to the second electrode of the second transistor, and a second electrode connected to the first node; a second capacitor connected between the first power line and the first node; and a light emitting element between a second power line and the first transistor, and including a second electrode electrically connected to the second power line.

公开(公告)号：US20230152922A1

公开(公告)日：2023-05-18

申请号：US17809091

申请日：2022-06-27

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Keum Dong JUNG ,  Ji Woong KIM ,  Hyung Gun MA ,  Kyung Tea PARK ,  Moon Jae JEONG ,  Sang Hyun HEO

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/04166 ,  G06F3/0446

Abstract: A sensor device of the present invention includes first sensors; second sensors forming capacitance with the first sensors; a multi-frequency generator generating a first frequency signal and a second frequency signal having different frequencies; a sensor transmitter supplying first driving signals based on the first frequency signal to first sensors of a first group among the first sensors, supplying second driving signals based on the second frequency signal to first sensors of a second group among the first sensors, and simultaneously supplying the first driving signals and the second driving signals; and a sensor receiver simultaneously receiving sensing signals from the second sensors.

公开(公告)号：US20230061354A1

公开(公告)日：2023-03-02

申请号：US17721465

申请日：2022-04-15

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kyung Tea PARK ,  Ji Woong KIM ,  Hyung Gun MA ,  Seong An PARK ,  Seong Joo LEE ,  Tae Hun LEE ,  Sang Hyun HEO

IPC: G09G3/32 ,  H03F3/70

Abstract: An analog front-end includes a (1-1)-th charge amplifier configured to differentially amplify a first and second sensing signals provided to a (1-1)-th input terminal and a (1-2)-th input terminal, respectively, and output a (1-1)-th differential signal. A (1-2)-th charge amplifier is configured to differentially amplify the second sensing signal and a third sensing signal provided to a (1-3)-th input terminal and a (1-4)-th input terminal, respectively, and output a (1-2)-th differential signal. A second charge amplifier is configured to differentially amplify the (1-1)-th differential signal and the (1-2)-th differential signal provided to a (2-1)-th input terminal and a (2-2)-th input terminal, respectively, and output a (2-1)-th differential signal and a (2-2)-th differential signal. A demodulation circuit is configured to filter the (2-1)-th differential signal and the (2-2)-th differential signal and output demodulated differential signals. An analog-to-digital converter is configured to output a sensing value based on the demodulated differential signals.

公开(公告)号：US20230051918A1

公开(公告)日：2023-02-16

申请号：US17750566

申请日：2022-05-23

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ji Woong KIM ,  Oh Jo KWON ,  Kyung Tea PARK ,  Keum Dong JUNG ,  Sang Hyun HEO

IPC: G06F3/044 ,  G06F3/041 ,  H03M1/66

Abstract: An input sensing unit includes a touch sensing unit, which includes a plurality of driving electrodes, a plurality of sensing electrodes, and a driving signal generating unit which provides driving signals to the driving electrodes. The sensing electrodes are insulated from and intersect the driving electrodes. The driving signal generating, unit includes touch drivers connected to driving electrodes and a digital-to-analog converter configured to provide a first signal or a second signal, and each of the touch drivers is connected to a preset number of driving electrodes among the driving electrodes.

公开(公告)号：US20240395192A1

公开(公告)日：2024-11-28

申请号：US18590940

申请日：2024-02-29

Applicant: Samsung Display Co., Ltd.

Inventor： Sang Hyun HEO ,  Joon Chul GOH ,  Oh Jo KWON ,  Dong Soo KIM ,  Hyung Gun MA ,  Jung Hun YI

IPC: G09G3/32

Abstract: According to embodiments of the disclosure, a pixel includes a driving transistor including a gate electrode, a first electrode electrically connected to a first power line and a second electrode electrically connected to a light emitting element, a body of a semiconductive layer constituting the driving transistor being electrically connected to the first power line.

公开(公告)号：US20240347003A1

公开(公告)日：2024-10-17

申请号：US18428688

申请日：2024-01-31

Applicant: Samsung Display Co., LTD.

Inventor： Joon Chul GOH ,  Sang Hyun HEO

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2320/02

Abstract: Provided herein is a sub-pixel including first to seventh transistors, first and second capacitors, and a light emitting element, and a display device including the sub-pixel. A body terminal of the first transistor is connected to a first power line. In the sub-pixel and the display device including the sub-pixel in accordance with embodiments of the present disclosure, mitigation of the body effect may lead to an improvement in display quality.

公开(公告)号：US20230072385A1

公开(公告)日：2023-03-09

申请号：US17702268

申请日：2022-03-23

Applicant: Samsung Display Co., LTD.

Inventor： Ji Woong KIM ,  Hyung Gun MA ,  Kyung Tea PARK ,  Seong Joo LEE ,  Keum Dong JUNG ,  Sang Hyun HEO

IPC: G06F3/044 ,  G06F3/041 ,  G09G3/32

Abstract: A sensor device includes first sensors; second sensors and the first sensors of mutual capacitance; a sensor transmitter electrically connected to the first sensors, the sensor transmitter supplying driving signals to the first sensors; a sensor receiver electrically connected to the second sensors, the sensor receiver receiving sensing signals from the second sensors, the sensor receiver demodulating the sensing signals by using demodulation clock signals; and a signal generator generating a basic clock signal, and generating the driving signals and the demodulation clock signals to be synchronized with the basic clock signal.

公开(公告)号：US20230031695A1

公开(公告)日：2023-02-02

申请号：US17671969

申请日：2022-02-15

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyung Gun MA ,  Ji Woong KIM ,  Jun Yong SONG ,  Seong Joo LEE ,  Keum Dong JUNG ,  Sang Hyun HEO

IPC: G09G3/3266 ,  H01L25/18

Abstract: A display device includes a display panel including pixels connected to scan lines and data lines, and connection line connected to the scan lines, and a scan driver which drives scan lines. The scan driver includes a scan signal output circuit which outputs a first output signal as a scan signal to a first output line and outputs a second output signal to a second output line, a signal distribution circuit which outputs the first output signal to a first or third connection line and outputs the second output signal to a second or fourth connection line in response to first and second distribution control signals, and a scan-off circuit which outputs gate-off level to at least one of the scan lines in response to first and second scan-off control signals.