公开(公告)号：US20240135864A1

公开(公告)日：2024-04-25

申请号：US18222976

申请日：2023-07-16

Applicant: Samsung Display Co., Ltd.

Inventor： KYUNG-HUN LEE

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/0275 ,  G09G2320/0247 ,  G09G2330/021 ,  G09G2330/028

Abstract: Disclosed is a display device which includes a display panel, a voltage generator, and a driving controller. The voltage generator generates a driving voltage and determines a voltage level of the driving voltage based on a voltage control signal. A current compensator calculates a load based on previous image data and outputs compensation image data with target luminance by compensating for current image data based on the load. The driving controller turns on the current compensator in a normal mode such that an image is displayed with the target luminance, and turns off the current compensator in a setting mode such that an image corresponding to the current image data is displayed with given reference luminance.

公开(公告)号：US20240029643A1

公开(公告)日：2024-01-25

申请号：US18476680

申请日：2023-09-28

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： KYUNG-HUN LEE

IPC: G09G3/32 ,  G09G3/20

CPC classification number: G09G3/32 ,  G09G3/2096 ,  G09G3/2007 ,  G09G2340/0435 ,  G09G2310/027 ,  G09G2320/0626 ,  G09G2330/028 ,  G09G2320/0247 ,  G09G2320/0276

Abstract: A display device includes a display panel including a plurality of pixels, and a panel driver configured to drive the display panel. The panel driver receives input image data at a variable input frame frequency, stores the variable input frame frequency as a previous frame frequency by monitoring the variable input frame frequency, determines a reference frequency based on the previous frame frequency, determines a reference luminance as a luminance of the display panel at the reference frequency, and adjusts data voltages applied to the plurality of pixels such that a luminance of the display panel at the variable input frame frequency becomes the reference luminance.

公开(公告)号：US20230290314A1

公开(公告)日：2023-09-14

申请号：US18102794

申请日：2023-01-30

Applicant: Samsung Display Co., Ltd.

Inventor： KYUNG-HUN LEE

IPC: G09G3/3291 ,  G09G3/3266

CPC classification number: G09G3/3291 ,  G09G3/3266 ,  G09G2320/0666 ,  G09G2320/0626 ,  G09G2310/0278

Abstract: Provided is a display device comprising a display panel including a plurality of pixels respectively connected to a plurality of scan lines and a plurality of data lines, a scan driver configured to scan signals to the pixels through the scan lines, a date driver configured to provide data voltages to the pixels through the data lines, and a controller configured to control the scan driver and the date driver, and including an image data processor configured to receive input image data at variable input frame frequency. Accordingly, display quality is improved because a flicker is minimized or reduced.

公开(公告)号：US20230230522A1

公开(公告)日：2023-07-20

申请号：US18082616

申请日：2022-12-16

Applicant: Samsung Display Co., Ltd.

Inventor： KYUNG-HUN LEE

IPC: G09G3/20

CPC classification number: G09G3/2085 ,  G09G2300/0413 ,  G09G3/32

Abstract: Provided is a display device comprising a display panel, an image shift controller, and a controller. The display panel is configured to display a display image, and includes a display area in which pixels are disposed and a sub-display area surrounding the display area and in which dummy pixels are disposed. The image shift controller is configured to generate a display image shift signal including information on a path through which the display image is shifted. The controller is configured to receive the display image shift signal to generate input image data to which the display image shift signal is applied. A size of a driving transistor included in each of the pixels disposed in the display area is different from a size of a driving transistor included in each of the dummy pixels disposed in the sub-display area.