公开(公告)号：US11636812B2

公开(公告)日：2023-04-25

申请号：US16354048

申请日：2019-03-14

Applicant: Samsung Display Co., Ltd.

Inventor： Hyo Min Kim ,  Gi Na Yoo ,  Sun Jin Joo ,  Ill Soo Park ,  Jae Hong Kim ,  Si Jin Sung ,  Jae Yong Lee

IPC: G09G3/3275 ,  G09G3/20

Abstract: A degradation compensator including a compensation factor determiner configured to determine a compensation factor based on a distance between adjacent sub-pixels, and a data compensator configured to apply the compensation factor to a stress compensation weight to generate compensation data for compensating image data.

公开(公告)号：US12211408B2

公开(公告)日：2025-01-28

申请号：US18385064

申请日：2023-10-30

Applicant: Samsung Display Co., LTD.

Inventor： Si Jin Sung ,  Sae Ron Park

IPC: G09G3/00

Abstract: An apparatus for evaluating a lifetime of a display panel including first pixels disposed in a first display area and second pixels disposed in a second display area, includes: a controller for driving the first pixels with a first grayscale and the second pixels with a second grayscale during an aging period calculating a first current, a second current, and a third current, which are supplied to the display panel; a luminance calculator for calculating a first luminance of the first display area and calculating a second luminance of the second display area; and a corrector for calculating a first correction current and a second correction current. The controller calculates a first efficiency lifetime and a second efficiency lifetime, and evaluates the lifetime of the display panel based on the first efficiency lifetime and the second efficiency lifetime.

公开(公告)号：US20240038126A1

公开(公告)日：2024-02-01

申请号：US18224572

申请日：2023-07-21

Applicant: Samsung Display Co., Ltd.

Inventor： Si Jin Sung ,  Ill Soo Park

IPC: G09G3/20 ,  G09G3/3291

CPC classification number: G09G3/2074 ,  G09G3/3291 ,  G09G3/2003 ,  G09G2300/0452

Abstract: In a method of measuring a life time of a display panel, pixels each including a first sub-pixel emitting light of a first color are disposed in the display panel. The display panel includes a first region in which at least one pixel including a first sub-pixel emitting light of the first color is located and a second region not overlapping with the first region and having at least one pixel located therein. The method includes a first step in which a first sub-pixel in the first region emits light and a first sub-pixel in the second region does not emit light while the first sub-pixel emits light, and a second step in which a data voltage for displaying an image of the same grayscale is applied to the first sub-pixel located in the first region and the first sub-pixel located in the second region.

公开(公告)号：US12142183B2

公开(公告)日：2024-11-12

申请号：US18224572

申请日：2023-07-21

Applicant: Samsung Display Co., Ltd.

Inventor： Si Jin Sung ,  Ill Soo Park

IPC: G09G3/20 ,  G09G3/3291

Abstract: In a method of measuring a life time of a display panel, pixels each including a first sub-pixel emitting light of a first color are disposed in the display panel. The display panel includes a first region in which at least one pixel including a first sub-pixel emitting light of the first color is located and a second region not overlapping with the first region and having at least one pixel located therein. The method includes a first step in which a first sub-pixel in the first region emits light and a first sub-pixel in the second region does not emit light while the first sub-pixel emits light, and a second step in which a data voltage for displaying an image of the same grayscale is applied to the first sub-pixel located in the first region and the first sub-pixel located in the second region.