公开(公告)号：US20230326400A1

公开(公告)日：2023-10-12

申请号：US18176910

申请日：2023-03-01

Applicant: Samsung Display Co., LTD.

Inventor： Hong Soo KIM ,  Myung Woo LEE ,  Suk Hun LEE

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2330/028 ,  G09G2320/0633

Abstract: A display device comprises a pixel configured to be driven in cycle periods during a frame period defined by a vertical start signal, and a display driver configured to divide a cycle period into subfields for driving, configured to control an amount of current flowing through the pixel and to control emission on-duties of the subfields, and configured to independently determine, for the cycle period, a reference duty that is a minimum emission on-duty set in the cycle period based on a dimming signal.

公开(公告)号：US20240347001A1

公开(公告)日：2024-10-17

申请号：US18388830

申请日：2023-11-11

Applicant: Samsung Display Co., LTD.

Inventor： Se Hyuk PARK ,  Young Ha SOHN ,  Jin Wook YANG ,  Dong Gyu LEE ,  Suk Hun LEE ,  Jae Hyeon JEON

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2320/0242 ,  G09G2320/0285

Abstract: A display device includes an on-duty determiner which determines an on-duty period of an emission signal, based on a number of at least one cycle of a current frame, a first compensation value determiner which determines a first compensation value of a bias voltage according to a variation of the on-duty period, a second compensation value determiner which determines a second compensation value of the bias voltage, based on a driving frequency of a previous frame, and a third compensation value determiner which determines a third compensation value, based on the first compensation value and the second compensation value.

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：US20240078974A1

公开(公告)日：2024-03-07

申请号：US18206252

申请日：2023-06-06

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hong Soo KIM ,  Myung Woo LEE ,  Suk Hun LEE ,  Jae Keun LIM

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0247 ,  G09G2330/021 ,  G09G2330/028 ,  G09G2340/0435

Abstract: A display device including: a power supply configured to supply a first power, a second power, and a third power to a first power line, a second power line, and a third power line, respectively, wherein each of the first power, the second power and the third power varies in voltage level during one frame period; and pixels connected to at least one of scan lines and data lines, and connected to a common control line, the first power line, the second power line, and the third power line, wherein the pixels simultaneously emit light when the second power is changed to a low level, and a number of times the second power is changed to the low level during the one frame period changes in response to an image refresh rate.

公开(公告)号：US20230005409A1

公开(公告)日：2023-01-05

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

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.