公开(公告)号：US11132954B2

公开(公告)日：2021-09-28

申请号：US16260415

申请日：2019-01-29

Applicant: Samsung Display Co., Ltd.

Inventor： Min Ha Keum

IPC: G09G3/3291 ,  G09G3/3266 ,  G09G3/3233 ,  G09G3/3258

Abstract: A display device includes: organic light emitting diodes configured to emit light depending on grayscales constituting a target frame; a power voltage supplier configured to supply a power voltage to one electrode of each of the organic light emitting diodes; and a power voltage determiner configured to: extract target grayscales in descending order from a highest grayscale among the grayscales; and determine a voltage value of the power voltage based on each number of the target grayscales.

公开(公告)号：US11804164B2

公开(公告)日：2023-10-31

申请号：US17585397

申请日：2022-01-26

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Ho Lim ,  Min Ha Keum

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2320/0233 ,  G09G2330/021

Abstract: A display device includes: a display unit including a plurality of pixels to display an image; a first power supply to generate a first power voltage; a second power supply to generate a second power voltage; and a signal controller to control the first power supply to supply the first power voltage to the display unit in response to at least one control signal associated with luminance of the image, and to control the second power supply to stop supplying the second power voltage after the first power voltage starts to be supplied.

公开(公告)号：US20220358872A1

公开(公告)日：2022-11-10

申请号：US17585397

申请日：2022-01-26

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Ho LIM ,  Min Ha Keum

IPC: G09G3/20

Abstract: A display device includes: a display unit including a plurality of pixels to display an image; a first power supply to generate a first power voltage; a second power supply to generate a second power voltage; and a signal controller to control the first power supply to supply the first power voltage to the display unit in response to at least one control signal associated with luminance of the image, and to control the second power supply to stop supplying the second power voltage after the first power voltage starts to be supplied.