公开(公告)号：US20240312381A1

公开(公告)日：2024-09-19

申请号：US18674165

申请日：2024-05-24

Applicant: Samsung Display Co., LTD.

Inventor： Jinyoung ROH ,  HongSoo KIM ,  Sangan KWON ,  Sehyuk PARK ,  Hyo Jin LEE

IPC: G09G3/20

CPC classification number: G09G3/20 ,  G09G2310/0202 ,  G09G2310/0267 ,  G09G2310/027 ,  G09G2320/0247 ,  G09G2320/10 ,  G09G2330/023

Abstract: A display apparatus includes a display panel, a gate driver, a data driver and a driving controller. The display panel including a gate line and a data line displays an image based on input image data. The gate driver outputs a gate signal to the gate line. The data driver outputs a data voltage to the data line. The driving controller includes an area divider dividing the input image data into first and second area data, a first variable frequency driver determining a first driving frequency of the first area data based on a flicker value according to a grayscale value and generating a first data signal of the first driving frequency and a second variable frequency driver determining a second driving frequency of the second area data based on a flicker value according to a grayscale value and generating a second data signal of the second driving frequency.

公开(公告)号：US20220375380A1

公开(公告)日：2022-11-24

申请号：US17723584

申请日：2022-04-19

Applicant: Samsung Display Co., Ltd.

Inventor： Se Hyuk PARK ,  Hong Soo KIM ,  Jin Young ROH ,  Hae Kwan SEO ,  Jin Wook YANG ,  Hyo Jin LEE ,  Jae Keun LIM

IPC: G09G3/20

Abstract: A display system and a driving method for a display system that includes an application processor configured to supply a mode control signal corresponding to a plurality of driving modes and input image data corresponding thereto; and a display module that includes pixels configured to display an image and configured to control any one of a plurality of gamma values and power source voltages supplied to the pixels in response to the plurality of driving modes.

公开(公告)号：US20220319435A1

公开(公告)日：2022-10-06

申请号：US17519625

申请日：2021-11-05

Applicant: Samsung Display Co., Ltd.

Inventor： Se Hyuk PARK ,  Hong Soo KIM ,  Jin Young ROH ,  Hyo Jin LEE ,  Jae Keun LIM

IPC: G09G3/3266 ,  G09G3/3275

Abstract: The present disclosure provides a display device that controls output of a scan signal, conversion of image data, and output of a data signal in response to partial scan driving. The display device includes a display panel driven in one of a first mode and a second mode, a scan driver sequentially supplying a scan signal for writing data in the first mode, a controller generating image data in which input image data is rearranged based on the first mode or the second mode, and a data driver converting the image data into data signals and supplying the data signals to output channels.

公开(公告)号：US20220101774A1

公开(公告)日：2022-03-31

申请号：US17320372

申请日：2021-05-14

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jae Keun LIM ,  Jin Young ROH ,  Se Hyuk PARK ,  Hyo Jin LEE

IPC: G09G3/20

Abstract: A scan driver stage including: a first transistor including a gate connected to a first clock, a first electrode connected to a carry terminal, and a second electrode connected to a first node; a second transistor including a gate connected to a second clock, a first electrode connected to a carry terminal, and a second electrode connected to the first node; a third transistor including a gate connected to the first node and a first electrode connected to a second node; a fourth transistor including a gate connected to the second clock, a first electrode connected to power, and a second electrode connected to the second node; a fifth transistor including a gate connected to the first clock, a first electrode connected to power, and a second electrode connected to the second node; and an output outputting first and second scan signals based on first and second node voltages.

公开(公告)号：US20210049949A1

公开(公告)日：2021-02-18

申请号：US16943170

申请日：2020-07-30

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyo Jin LEE ,  Jae Keun LIM ,  Hong Soo KIM ,  Jinyoung ROH ,  Sehyuk PARK

IPC: G09G3/20

Abstract: A display apparatus including: a display panel configured to display an image based on input image data; a data driver configured to output a data voltage to the display panel; and a driving controller configured to determine a driving frequency of the display panel based on flicker values for grayscale values of the input image data and output a driving frequency signal representing the driving frequency of the display panel to a host.

公开(公告)号：US20200350389A1

公开(公告)日：2020-11-05

申请号：US16843637

申请日：2020-04-08

Applicant: Samsung Display Co., Ltd.

Inventor： Hyo Jin LEE ,  Jinyoung ROH ,  Sehyuk PARK ,  Sangan KWON ,  Hui NAM

IPC: H01L27/32 ,  G09G3/3291

Abstract: A display apparatus includes: a display panel configured to display an image based on input image data; a gate driver configured to output a gate signal to the display panel; a data driver configured to output a data voltage to the display panel; a driving controller configured to control an operation of the gate driver and an operation of the data driver, to determine a normal driving mode and a low frequency driving mode based on the input image data, and to determine a driving frequency of the display panel based on the input image data; and a touch driver configured to detect a touch event occurring on the display panel, and to output a touch interrupt signal representing the touch event to the driving controller.

公开(公告)号：US20200105198A1

公开(公告)日：2020-04-02

申请号：US16542125

申请日：2019-08-15

Applicant: Samsung Display Co., Ltd.

Inventor： Se Hyuk PARK ,  Hui NAM ,  Hyo Jin LEE

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

Abstract: A flicker quantification system includes a display device driven in units of reference periods having a first frame for writing data and at least one second frame for holding data. A luminance measurer generates luminance data by measuring a luminance of a display during the reference period. A voltage measurer measures a voltage of a photo sensor corresponding to light emitted. First voltage data representing an accumulation amount of voltage during the first frame and second voltage data representing an accumulation amount of voltage during the at least one second frame is generated. A processor calculates a flicker index value representing a ratio of a measured luminance difference to a just noticeable difference, based on the luminance data, the first voltage data, and the second voltage data. The measured luminance difference may represent the difference between a luminance during the first frame and a luminance during the second frame.

公开(公告)号：US20240203363A1

公开(公告)日：2024-06-20

申请号：US18219876

申请日：2023-07-10

Applicant: Samsung Display Co., Ltd.

Inventor： So Young PARK ,  Hyo Jin LEE ,  Hwal CHOI

IPC: G09G3/3291 ,  G06F3/041

CPC classification number: G09G3/3291 ,  G06F3/0412

Abstract: A display device including: a display panel configured to display an image; a sensor overlapping the display panel; and a processor connected to the sensor, and configured to sense input from an object, in response to a sensing signal provided from the sensor, wherein the processor obtains, in response to the sensing signal, offset data that corresponds to a case where there is no input, and senses the input by reflecting the offset data to the sensing signal, wherein the processor senses touch input from the object in a first mode, and senses proximity of the object in a second mode, and wherein the processor changes a rule related to obtaining the offset data in response to an event occurring in the second mode.

公开(公告)号：US20220148524A1

公开(公告)日：2022-05-12

申请号：US17586470

申请日：2022-01-27

Applicant: Samsung Display Co., Ltd.

Inventor： Sehyuk PARK ,  Sangan KWON ,  HongSoo KIM ,  Jinyoung ROH ,  Hyo Jin LEE

IPC: G09G3/3291

Abstract: A method of driving a display panel includes dividing an input image into a plurality of segments, generating a flicker value of a segment of the plurality of segments, determining whether to compensate the flicker value of the segment or not according to a segment size, compensating the flicker value of the segment based on the segment size, determining a frame rate of the display panel based on the flicker value of the segment and outputting a data voltage to the display panel in the frame rate. The flicker value of the segment is compensated based on the flicker value of the segment and flicker values of segments that are adjacent to the segment.

公开(公告)号：US20220036797A1

公开(公告)日：2022-02-03

申请号：US17182825

申请日：2021-02-23

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Se Hyuk PARK ,  Hong Soo KIM ,  Jin Young ROH ,  Bong Hyun YOU ,  Hyo Jin LEE ,  Jae Keun LIM

IPC: G09G3/20

Abstract: A display device includes first dots connected to first scan lines, second dots connected to second scan lines and alternately disposed with the first dots in a first direction and a second direction different from the first direction, a scan driver including first stages respectively connected to the first scan lines and second stages respectively connected to the second scan lines, and a data driver connected to the first dots and the second dots through data lines. The first stages are connected to first clock lines, the second stages are connected to second clock lines, first stages except a first start stage are respectively connected to corresponding first scan lines of corresponding previous first stages, and second stages except a second start stage are respectively connected to corresponding second scan lines of corresponding previous second stages.