公开(公告)号：US20220076624A1

公开(公告)日：2022-03-10

申请号：US17236481

申请日：2021-04-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： DAE SIK LEE ,  Si Duk SUNG ,  Sung Mo YANG ,  Sang Hyun LEE

IPC: G09G3/3233

Abstract: A display device includes a first power source, a timing controller, and pixels. The timing controller is connected to the first power source through a main line, an auxiliary line, and a detection line. The pixels are commonly connected to the first power source through a first power line. The first power source includes: a main power source connected to the first power line and the main line; an auxiliary power source connected to the auxiliary line; a rectifier connected between the auxiliary power source and the first power line; and a comparator comparing a voltage of the first power line and providing its output to the detection line.

公开(公告)号：US20240282264A1

公开(公告)日：2024-08-22

申请号：US18496970

申请日：2023-10-30

Applicant: Samsung Display Co., Ltd.

Inventor： Ki Hyun PYUN ,  Dae Sik LEE ,  Sung Mo YANG

IPC: G09G3/3241

CPC classification number: G09G3/3241 ,  G09G2330/025 ,  G09G2330/04

Abstract: A display device according to embodiments of the present inventive concept includes pixels connected to scan lines, data lines, sensing lines, a first power line, and a second power line; and a power supply unit supplying at least one of a first driving power source, a second driving power source, and a third driving power source to the second power line as a second power source, and the power supply unit supplies voltages of the first driving power source and the third driving power source to the second power line during a normal driving period in which the pixels emit light.

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：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.