公开(公告)号：US20210097924A1

公开(公告)日：2021-04-01

申请号：US16992011

申请日：2020-08-12

Applicant: Samsung Display Co., Ltd.

Inventor： Suk Hun LEE ,  Sangan KWON ,  Hong Soo KIM ,  Jin Young ROH ,  Sehyuk PARK ,  Hyo Jin LEE

IPC: G09G3/20

Abstract: A display apparatus includes a display panel displaying an image based on an input image data, a data driver outputting a data voltage to a data line, and a driving controller determining a driving frequency of the display panel based on the input image data. The driving controller includes a flicker value storage configured to store flicker values for grayscale values corresponding to the input image data, a voltage drop determiner configured to adjust a flicker value of the flicker values based on a voltage drop of the display panel, a still image determiner configured to determine whether the input image data is a still image or a video image, and a driving frequency determiner configured to determine the driving frequency of the display panel using the flicker value based on the input image data being the still image.

公开(公告)号：US20190156733A1

公开(公告)日：2019-05-23

申请号：US15981586

申请日：2018-05-16

Applicant: Samsung Display Co. Ltd.

Inventor： Se Hyuk PARK ,  Hyo Jin LEE

IPC: G09G3/32 ,  H01L27/12 ,  H01L27/15 ,  H01L33/62

Abstract: A display device includes a first switching element including a second electrode and a first gate electrode, a second switching element including a third electrode connected with the first gate electrode, a third switching element including a fifth electrode connected with the second electrode, and sixth electrode, a fourth switching element including a seventh electrode connected with the second electrode, and an eighth electrode, a fifth switching element including a ninth electrode connected with the second electrode, and a tenth electrode, a first light emitting diode connected with the sixth electrode and the eighth electrode, a second light emitting diode connected with the eighth electrode and the sixth electrode, and a switch selectively connecting a common power source line with the sixth electrode or the eighth electrode. The first light emitting diode and the second light emitting diode have different polarities from each other with respect to a same direction.

公开(公告)号：US20180082632A1

公开(公告)日：2018-03-22

申请号：US15702516

申请日：2017-09-12

Applicant: Samsung Display Co., Ltd.

Inventor： Hyo Jin LEE

IPC: G09G3/3225 ,  G09G3/3275

CPC classification number: G09G3/3225 ,  G09G3/3233 ,  G09G3/3275 ,  G09G2300/0842 ,  G09G2300/0866 ,  G09G2320/0233 ,  G09G2320/0626 ,  G09G2380/02

Abstract: A flexible display apparatus comprises: a display panel having first and second bending areas bendable at first and second angles along a bending line, first and second display areas extending from the first and second bending areas; a first sensor unit which generates a first sensing signal by measuring the degree of deformation of at least one of the first and second bending areas; a second sensor unit which generates a second sensing signal by measuring the first angle; a third sensor unit which generates a third sensing signal by measuring the second angle; and a controller which receives the first through third sensing signals, determines one of the first and second display areas to be a main viewing area based on the first through third sensing signals, and adjusts a display state of the main viewing area.

公开(公告)号：US20220319409A1

公开(公告)日：2022-10-06

申请号：US17517736

申请日：2021-11-03

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/3225

Abstract: A display device comprises pixels, an emission control driver, a scan driver, and a timing controller for selecting whether the display device is to operate in a first display mode in which the display device is driven at a first frequency or a second display mode in which the display device is driven at a second frequency lower than the first frequency based on input image data. The first display mode comprises first frame periods, and the second display mode comprises second frame periods having at least two sub-frames having a period equal to the first frame period. A total time required to supply the scan signals to the scan lines in one first frame period of the first frame periods and a total time required to supply the scan signals to the scan lines in one second frame period of the second frame periods are substantially same.

公开(公告)号：US20220309998A1

公开(公告)日：2022-09-29

申请号：US17535340

申请日：2021-11-24

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/32

Abstract: Provided is a display device comprising a pixel unit including first pixel rows connected to first scan lines and second pixel rows alternating with the first pixel rows and connected to second scan lines, a scan driver including first scan stages connected to the first scan lines and second scan stages connected to the second scan lines, and an emission driver including emission stages in which each of emission lines is connected to two or more pixel rows. Accordingly, the display device is capable of changing a display frequency and maintaining the same cycle in which luminance decreases when the display frequency is changed.

公开(公告)号：US20220293027A1

公开(公告)日：2022-09-15

申请号：US17521066

申请日：2021-11-08

Applicant: SAMSUNG DISPLAY CO., LTD.

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

IPC: G09G3/20

Abstract: A display system includes: a host processor which outputs first image data and outputs scan frequency information and a partial scan enable signal, based on an image driving frequency; a display module controlled by the host processor; and an interface. The display module includes: a display driving circuit which controls a selection of pixel rows to which the data signals are supplied based on the scan frequency information and the partial scan enable signal; and a display panel which displays an image on selected pixel rows based on the data signals. In a video mode of the interface, the host processor divides and outputs the first image data through the interface during transmission periods, based on the image driving frequency, and suspends an output of the first image data through the interface during suspend periods.

公开(公告)号：US20220262296A1

公开(公告)日：2022-08-18

申请号：US17535331

申请日：2021-11-24

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/20

Abstract: Provided is a display device including a pixel unit in which each of pixel rows extends in a first direction, odd numbered pixel rows and even numbered pixel rows are alternately disposed in a second direction, and pixels included in the pixel rows are designated as dots having two or more units, a gray difference calculator that calculates difference between representative grays of dots adjacent in the second direction among dots of a p-th pair of the pixel rows, an edge detector that increases an edge dot number when a first condition in which the difference between the representative grays is larger than a first threshold value is satisfied, and a first pattern detector that increases an edge number when the edge dot number is larger than a second threshold value, and that generates a first pattern detection signal when the edge number is larger than a third threshold value.

公开(公告)号：US20220020311A1

公开(公告)日：2022-01-20

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

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：US20210398490A1

公开(公告)日：2021-12-23

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: G09G3/3266

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：US20210390898A1

公开(公告)日：2021-12-16

申请号：US17320120

申请日：2021-05-13

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/20 ,  G09G3/3258

Abstract: A display device includes: a pixel part to display an image and including pixels receiving a reference voltage; a controller to determine a value of the reference voltage based on a load of the entire pixel part, and to control a grayscale range of image data according to a location in the pixel part based on the reference voltage; a data driver to supply data voltages to the pixel part through data lines based on grayscale ranges adjusted for each location in the pixel part; and a scan driver to supply a scan signal to the pixels through scan lines.