公开(公告)号：US11727867B2

公开(公告)日：2023-08-15

申请号：US17882919

申请日：2022-08-08

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/3225 ,  G09G3/3233 ,  H10K59/12

CPC classification number: G09G3/3225 ,  G09G3/3233 ,  H10K59/12 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2320/0214 ,  G09G2320/0233 ,  G09G2320/0247 ,  G09G2320/04 ,  G09G2320/045 ,  G09G2320/0626 ,  G09G2330/021

Abstract: A pixel of an organic light emitting diode display device includes a capacitor, a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor, a seventh transistor, an eighth transistor, a ninth transistor and an organic light emitting diode. The third transistor includes first and second sub-transistors which are coupled to each other in series between a drain of the first transistor and a gate node, and a fourth transistor includes third and fourth sub-transistors which are coupled to each other in series between a line of an initialization voltage and the gate node. The eighth transistor applies a reference voltage to a first node between the first and second sub-transistors in response to an emission signal, and a ninth transistor applies the reference voltage to a second node between the third and fourth sub-transistors in response to the emission signal.

公开(公告)号：US11705044B2

公开(公告)日：2023-07-18

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

CPC classification number: G09G3/2003 ,  G09G3/3258 ,  G09G2310/027 ,  G09G2310/0289 ,  G09G2320/0233

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.

公开(公告)号：US11521546B2

公开(公告)日：2022-12-06

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：US11521531B2

公开(公告)日：2022-12-06

申请号：US16950004

申请日：2020-11-17

Applicant: SAMSUNG DISPLAY CO., LTD.

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

IPC: G09G3/20

Abstract: A display device includes a display panel including a plurality of pixels, and a panel driver including N registers, where N is an integer greater than 1. The panel driver is configured to divide the display panel into N first detection regions, to perform a first still image detection operation on each of the N first detection regions by using the N registers, to divide the display panel into N second detection regions different from the N first detection regions by using a result of the first still image detection operation, and to perform a second still image detection operation on each of the N second detection regions by using the N registers.

公开(公告)号：US11501678B2

公开(公告)日：2022-11-15

申请号：US17494915

申请日：2021-10-06

Applicant: Samsung Display Co., Ltd.

Inventor： Ji Youn Kim ,  Hong Soo Kim ,  Se Hyuk Park ,  Jun Heyung Jung ,  Man Seung Cho

IPC: G09G3/20

Abstract: A display panel includes a display panel displaying an image including a moving image and a static image; a controller generating first image data to the first area in a first arrangement type, and generating second image data to the second area in a second arrangement type; a scan driver sequentially supplying scan signals to all of pixel rows of the first area during a first period of a first frame and sequentially supplying scan signals to a part of pixel rows of the second area exclusively during a second period of the first frame; and a data driver supplying data signals corresponding to the first image data to data lines during the first period, and supplying data signals corresponding to the second image data to the data lines during the second period.

公开(公告)号：US11488537B2

公开(公告)日：2022-11-01

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: G09G3/3266

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.

公开(公告)号：US10114236B2

公开(公告)日：2018-10-30

申请号：US15636807

申请日：2017-06-29

Applicant: Samsung Display Co., Ltd.

Inventor： Hong Soo Kim ,  Jun Heyung Jung ,  Ja Kyoung Jin

IPC: G11C7/00 ,  G02F1/01 ,  G02F1/1345 ,  G02F1/29 ,  G09G3/20 ,  G09G3/3241 ,  G09G3/36

Abstract: A display device includes: a display unit including scan lines, data lines, unit areas corresponding to intersections of the scan lines and the data lines, the unit areas including first unit areas in an effective display area, second unit areas in a dummy area around the effective display area, some of the second unit areas being smaller than the first unit areas, and pixels in the first unit areas; a timing controller configured to receive first data including image data corresponding to the first and second unit areas and to convert the first data into second data corresponding to the effective display area; and a data driver configured to generate a data signal corresponding to the second data. The display unit includes a first horizontal line having fewer pixels than the number of the data lines.

公开(公告)号：US09811301B2

公开(公告)日：2017-11-07

申请号：US14628172

申请日：2015-02-20

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Nam-Gon Choi ,  Gi Geun Kim ,  Hong Soo Kim ,  Geun Jeong Park ,  Ho Seok Son ,  Dong Gyu Lee ,  Dong-Won Park ,  Cheol Woo Park ,  Yun Ki Baek ,  Bong Hyun You

IPC: G06F3/14 ,  G06F3/041 ,  G06T11/60

CPC classification number: G06F3/1407 ,  G06F3/0416 ,  G06T11/60 ,  G09G5/36 ,  G09G2340/12

Abstract: An apparatus includes an overlay buffer configured to store overlay data; a touch path logic to: receive first touch events from the first touch sensor panel and generate a first output based on the first touch events, and receive second touch events from the second touch sensor panel and generate a second output based on the second touch events; and a rendering logic to, when the first touch events occur: receive a first video image; receive the first output; and combine the first video image with the overlay data corresponding to the first video image to output at least one combined display image, and, when the second touch events occur: receive a second video image; receive the second output; and combine the second video image with the overlay data corresponding to the second video image to output the at least one combined display image.

公开(公告)号：US12154485B2

公开(公告)日：2024-11-26

申请号：US18133615

申请日：2023-04-12

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Se Hyuk Park ,  Hong Soo Kim ,  Young Ha Sohn ,  Jin Wook Yang ,  Dong Gyu Lee ,  Jae Hyeon Jeon

IPC: G09G3/32

Abstract: A pixel includes: a light emitting element; a first transistor including a gate electrode electrically connected to a first node, a second node to which a first power voltage for driving the light emitting element is to be applied, and a third node electrically connected to the light emitting element; and a bias control transistor configured to be controlled in operating timing thereof by a bias control signal, and configured to switch electrical connection between the second node and a bias power line for transmitting a bias voltage. In one frame period, a voltage level of the bias voltage to be applied to the second node sequentially increases.

公开(公告)号：US11817030B2

公开(公告)日：2023-11-14

申请号：US17940414

申请日：2022-09-08

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

CPC classification number: G09G3/2007 ,  G09G2310/027 ,  G09G2310/08 ,  G09G2320/0247 ,  G09G2320/0606 ,  G09G2320/08 ,  G09G2320/10 ,  G09G2360/144

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.