公开(公告)号：US11462172B2

公开(公告)日：2022-10-04

申请号：US17122505

申请日：2020-12-15

Applicant: Samsung Display Co., Ltd.

Inventor： Se Hyuk Park ,  Ji Youn Kim ,  Hong Soo Kim ,  Jin Young Roh ,  Hyo Jin Lee ,  Jae Keun Lim

IPC: G09G3/32 ,  G09G3/3266

Abstract: A display device includes: a pixel part including a plurality of pixels; a first scan driver to provide a first scan signal to each of the pixels; and an initialization controller to control the first scan driver. Each of the pixels includes a pixel circuit including a plurality of transistors, and a light emitting element connected to the pixel circuit, an anode of the light emitting element is to be initialized to a first initialization voltage in response to the first scan signal having a gate-on level, and the initialization controller is to determine whether to provide the first scan signal having the gate-on level to each of the pixels for each frame.

公开(公告)号：US11183106B2

公开(公告)日：2021-11-23

申请号：US16793880

申请日：2020-02-18

Applicant: Samsung Display Co., Ltd.

Inventor： Se Hyuk Park ,  Hyo Jin Lee ,  Sang An Kwon ,  Jin Young Roh

IPC: G09G3/30 ,  G06F3/038 ,  G09G5/00 ,  G09G3/32

Abstract: A display device includes a display unit. The display unit includes a first display area and a second display area. A first scan line, a first power line, and first pixels connected to the first scan line and the first power line are in the first display area. A second scan line, a second power line, and second pixels connected to the second scan line and the second power line are in the second display area. A scan driver is configured to sequentially provide a scan signal to the first scan line and the second scan line. A power supply is configured to provide a power source voltage that is varied independently to the first power line and the second power line.

公开(公告)号：US11176876B1

公开(公告)日：2021-11-16

申请号：US17151601

申请日：2021-01-18

Applicant: Samsung Display Co., Ltd.

Inventor： Hyo Jin Lee ,  Hong Soo Kim ,  Jin Young Roh ,  Se Hyuk Park ,  Jae Keun Lim

IPC: G09G3/32

Abstract: A display device includes the following elements: a display panel including a first pixel emitting first-color light, a second pixel emitting second-color light, and a third pixel emitting third-color light; a controller generating generated image data based on input image data according to a driving frequency of the display panel, and generating output image data using the generated image data; and a data driver supplying data signals to the display panel based on the output image data. The input image data includes first, second, and third grayscales for the first, second, and third pixels, respectively. The generated image data includes first, second, and third generated grayscales for the first, second, and third pixels, respectively, with different ratios to the first, second, and third grayscales, respectively.

公开(公告)号：US10770001B2

公开(公告)日：2020-09-08

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：US09601551B2

公开(公告)日：2017-03-21

申请号：US14699476

申请日：2015-04-29

Applicant: Samsung Display Co., Ltd.

Inventor： Bon Seog Gu ,  Jae Hyun Cho ,  Byung Sun Kim ,  Hong Soo Kim ,  Se Hyuk Park

IPC: H01L27/32 ,  G09G3/3258

CPC classification number: H01L27/3248 ,  G09G3/3258 ,  G09G2300/0452 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0235 ,  G09G2320/0242

Abstract: An organic light emitting display includes a data driving unit connected to data lines, a scan driving unit connected to scan lines, and a display panel having pixel groups arranged in a region where the data lines and scan lines intersect. A pixel group includes a first pixel unit having a first organic light emitting diode configured to emit light of a first color and a second pixel unit having a second organic light emitting diode configured to emit light of second color. The first pixel unit further includes an organic light emitting diode configured to emit light of a third color and the second pixel unit further includes an organic light emitting diode configured to emit light of the third color.

公开(公告)号：US11763725B2

公开(公告)日：2023-09-19

申请号：US17220190

申请日：2021-04-01

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jae Keun Lim ,  Han Bit Kim ,  Hong Soo Kim ,  Jin Young Roh ,  Se Hyuk Park ,  Hyo Jin Lee

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G2310/027 ,  G09G2310/0267 ,  G09G2310/0278 ,  G09G2310/08

Abstract: A display device of the invention includes: a pixel portion including first pixel rows connected to first scan lines and second pixel rows connected to second scan lines; a scan driver including first and second stages connected to the first scan lines and the second scan lines; and a data driver connected to the first and second pixel rows through same data lines. The first stages are connected to first clock lines, the second stages are connected to second clock lines, a first start stage of the first stages and a second start stage of the second stages are connected to a same scan start line, each first stage excluding the first start stage is connected to a first scan line of a previous first stage, and each second stage excluding the second start stage is connected to a second scan line of a previous second stage.

公开(公告)号：US11663977B2

公开(公告)日：2023-05-30

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

CPC classification number: G09G3/3266 ,  G09G3/3275 ,  G09G2300/0452 ,  G09G2310/0278 ,  G09G2320/0673

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：US11663950B2

公开(公告)日：2023-05-30

申请号：US17319758

申请日：2021-05-13

Applicant: Samsung Display Co., Ltd.

Inventor： Se Hyuk Park ,  Hong Soo Kim ,  Jin Young Roh ,  Hyo Jin Lee ,  Jae Keun Lim

IPC: G09G3/20 ,  G09G3/3275 ,  G09G5/06

CPC classification number: G09G3/2003 ,  G09G3/3275 ,  G09G5/06 ,  G09G2310/027 ,  G09G2320/0247

Abstract: A display device includes: a display panel configured to display an image; a signal controller configured to determine whether an input image signal is a still image signal, and determine color coordinates using data values of one frame data of the input image signal, and generate compensated image data by compensating image data of the one frame data based on the color coordinates; and a data driver configured to generate a data signal based on the compensated image data and output the compensated image data to the display panel through a data line.

公开(公告)号：US11651728B2

公开(公告)日：2023-05-16

申请号：US17724695

申请日：2022-04-20

Applicant: Samsung Display Co., LTD.

Inventor： Young Ha Sohn ,  Se Hyuk Park ,  Hae Kwan Seo ,  Jin Wook Yang

IPC: G09G3/32 ,  G09G3/00

CPC classification number: G09G3/32 ,  G09G3/006 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2320/0295 ,  G09G2320/045 ,  G09G2330/021 ,  G09G2330/12

Abstract: A pixel includes a light emitting element, a first transistor including a gate electrode electrically connected to a first node, a second transistor including a gate electrode connected to a first scan line, a third transistor including a gate electrode connected to the first scan line, a fourth transistor including a gate electrode connected to a second scan line, a fifth transistor including a gate electrode electrically connected to a third scan line, an sixth transistor including a gate electrode electrically connected to the third scan line, a resistor electrically connected in parallel with the sixth transistor between the second node and the anode of the light emitting element, and an amplifier having a non-inverting terminal and an inverting terminal electrically connected to ends of the resistor, respectively.

公开(公告)号：US11626054B2

公开(公告)日：2023-04-11

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.