公开(公告)号：US20230116648A1

公开(公告)日：2023-04-13

申请号：US17860714

申请日：2022-07-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Si Jin SUNG ,  Jae Hong KIM ,  Hyo Min KIM ,  Ill Soo PARK ,  Jong Seok HAN

IPC: G01N21/95 ,  G09G3/3225

Abstract: A method for evaluating a lifespan of an organic light emitting display panel includes: aging an organic light emitting display panel, including first light emitting elements for emitting a first color, second light emitting elements for emitting a second color, and third light emitting elements for emitting a third color, during a preset aging period by displaying the first color in a first pattern area of the organic light emitting display panel and displaying a fourth color in a second pattern area of the organic light emitting display panel; measuring luminances of the first pattern area and the second pattern area by displaying the first color in the first pattern area and the second pattern area during a measurement period; and calculating a lifespan of the first light emitting elements based on the measured luminance of the first pattern area and the measured luminance of the second pattern area.

公开(公告)号：US20240203307A1

公开(公告)日：2024-06-20

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

CPC classification number: G09G3/006 ,  G09G2310/027 ,  G09G2320/043 ,  G09G2360/16

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：US20230230549A1

公开(公告)日：2023-07-20

申请号：US18120976

申请日：2023-03-13

Applicant: Samsung Display Co., Ltd.

Inventor： Hyo Min KIM ,  Gi Na YOO ,  Sun Jin JOO ,  lll Soo PARK ,  Jae Hong KIM ,  Si Jin SUNG ,  Jae Yong LEE

IPC: G09G3/3275 ,  G09G3/20

CPC classification number: G09G3/3275 ,  G09G3/2003 ,  G09G2320/045

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：US20190333452A1

公开(公告)日：2019-10-31

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.