公开(公告)号：US20220366858A1

公开(公告)日：2022-11-17

申请号：US17872936

申请日：2022-07-25

Applicant: Samsung Display Co., Ltd.

Inventor： Young Soo SOHN ,  Jong Man KIM ,  Bong Gyun KANG ,  Jae Woo RYU ,  Sung Mo YANG

IPC: G09G3/3291

Abstract: A display device includes a display panel, a first memory, and a degradation compensator. The first memory device stores stress data including degradation values representing a degradation degree of each of the blocks in the display panel. The degradation compensator loads the stress data from the first memory device, updates the stress data based on current input data and a maximum degradation value, updates the maximum degradation value based on degradation values included in the updated stress data, and generate compensated data by compensating for the current input data based on the updated stress data. The degradation compensator determines whether a first degradation value included in the stress data is normal by comparing the first degradation value with the maximum degradation value, and updates the first degradation value based on at least one adjacent degradation value adjacent to the first degradation value, when the first degradation value is abnormal.

公开(公告)号：US20210335282A1

公开(公告)日：2021-10-28

申请号：US17372382

申请日：2021-07-09

Applicant: Samsung Display Co., Ltd.

Inventor： Young Soo SOHN ,  Jong Man KIM ,  Bong Gyun KANG ,  Jae Woo RYU ,  Sung Mo YANG

IPC: G09G3/3291

Abstract: A display device includes a display panel, a first memory, and a degradation compensator. The first memory device stores stress data including degradation values representing a degradation degree of each of the blocks in the display panel. The degradation compensator loads the stress data from the first memory device, updates the stress data based on current input data and a maximum degradation value, updates the maximum degradation value based on degradation values included in the updated stress data, and generate compensated data by compensating for the current input data based on the updated stress data. The degradation compensator determines whether a first degradation value included in the stress data is normal by comparing the first degradation value with the maximum degradation value, and updates the first degradation value based on at least one adjacent degradation value adjacent to the first degradation value, when the first degradation value is abnormal.

公开(公告)号：US20210233456A1

公开(公告)日：2021-07-29

申请号：US17008409

申请日：2020-08-31

Applicant: Samsung Display Co., Ltd.

Inventor： Jong Man KIM ,  Sang Su HAN ,  Da Eun KANG ,  Jae Woo RYU

IPC: G09G3/20

Abstract: A display device and a method of driving the same are described. The display device includes: an over driver to overdrive current frame data included in input image data to output overdriving frame data; a data driver to generate a data signal for the current frame data based on the overdriving frame data; and a display panel including a plurality of pixels to receive the data signal, the over driver may calculate a temporal change rate or a spatial change rate of the input image data, and output the overdriving frame data utilizing a reference formula having a first main parameter determined according to the calculated result. Therefore, overdriving may be performed dynamically according to the spatial change rate or the temporal change rate of the input image data.

公开(公告)号：US20210217368A1

公开(公告)日：2021-07-15

申请号：US16942224

申请日：2020-07-29

Applicant: Samsung Display Co., Ltd.

Inventor： Young Soo SOHN ,  Jong Man KIM ,  Bong Gyun KANG ,  Jae Woo RYU ,  Sung Mo YANG

IPC: G09G3/3291

Abstract: A display device includes a display panel, a first memory, and a degradation compensator. The first memory device stores stress data including degradation values representing a degradation degree of each of the blocks in the display panel. The degradation compensator loads the stress data from the first memory device, updates the stress data based on current input data and a maximum degradation value, updates the maximum degradation value based on degradation values included in the updated stress data, and generate compensated data by compensating for the current input data based on the updated stress data. The degradation compensator determines whether a first degradation value included in the stress data is normal by comparing the first degradation value with the maximum degradation value, and updates the first degradation value based on at least one adjacent degradation value adjacent to the first degradation value, when the first degradation value is abnormal.

公开(公告)号：US20240153441A1

公开(公告)日：2024-05-09

申请号：US18197722

申请日：2023-05-16

Applicant: Samsung Display Co., Ltd.

Inventor： Jong Man KIM ,  Byoung Kwan AN ,  Sang Myeon HAN ,  Seung Ho PARK ,  Nam Jae LIM ,  Joon Hyeok JEON

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G3/2007 ,  G09G2320/0233 ,  G09G2320/043 ,  G09G2360/12

Abstract: Provided is a control device connected to a display panel including a controller configured to display images by driving the display panel according to data corresponding to image frames, and a memory connected to the controller. The controller is configured to select at least one of the image frames as a reference image frame, and update stress data corresponding to a partial area of the display panel in the memory based on one image data block selected from image data blocks of the reference image frame.