公开(公告)号：US20210056885A1

公开(公告)日：2021-02-25

申请号：US16989073

申请日：2020-08-10

Applicant: SAMSUNG DISPLAY CO, LTD

Inventor： SEHYUK PARK ,  HONG SOO KIM ,  SANGAN KWON ,  JINYOUNG ROH ,  HYO JIN LEE

IPC: G09G3/20 ,  G09G3/3291

Abstract: A display apparatus includes a display panel, a data driver and a driving controller. The display panel is configured to display an image based on input image data. The data driver is configured to output a data voltage to the display panel. The driving controller includes a frequency adjuster circuit configured to determine a driving frequency of the display panel, and a dithering circuit configured to change a grayscale value of the input image data according to frames. The frequency adjuster circuit is configured to determine the driving frequency of the display panel based on the input image data and based on whether the dithering part is activated.

公开(公告)号：US20210390913A1

公开(公告)日：2021-12-16

申请号：US17460553

申请日：2021-08-30

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： HYO JIN LEE ,  SANGAN KWON ,  HUI NAM ,  JINYOUNG ROH ,  SEHYUK PARK

IPC: G09G3/3291

Abstract: A display device includes a display panel including a plurality of pixels and a display panel driver configured to drive the display panel. Here, the display panel driver is configured to receive input image data, to drive the display panel at a first driving frequency when the input image data corresponds to a moving image, and to select one of a plurality of flicker lookup tables based on the first driving frequency and drive the display panel at a second driving frequency based on the flicker lookup table when the input image data corresponds to a still image.

公开(公告)号：US20210327323A1

公开(公告)日：2021-10-21

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：US20200349893A1

公开(公告)日：2020-11-05

申请号：US16800122

申请日：2020-02-25

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： HYO JIN LEE ,  Sangan Kwon ,  Hui Nam ,  Jinyoung Roh ,  Sehyuk Park

IPC: G09G3/3291

Abstract: A display device includes a display panel including a plurality of pixels and a display panel driver configured to drive the display panel. Here, the display panel driver is configured to receive input image data, to drive the display panel at a first driving frequency when the input image data corresponds to a moving image, and to select one of a plurality of flicker lookup tables based on the first driving frequency and drive the display panel at a second driving frequency based on the flicker lookup table when the input image data corresponds to a still image.