US 11,948,484 B2
Electronic device and method for predicting and compensating for burn-in of display
Seungkyu Choi, Suwon-si (KR); Hanyuool Kim, Suwon-si (KR); Taehyeong Kim, Suwon-si (KR); and Yunpyo Hong, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Jun. 2, 2023, as Appl. No. 18/328,202.
Application 18/328,202 is a continuation of application No. PCT/KR2021/014471, filed on Oct. 18, 2021.
Claims priority of application No. 10-2020-0168977 (KR), filed on Dec. 4, 2020; and application No. 10-2021-0014605 (KR), filed on Feb. 2, 2021.
Prior Publication US 2023/0306884 A1, Sep. 28, 2023
Int. Cl. G09G 3/00 (2006.01); G06F 1/16 (2006.01); G09G 3/3208 (2016.01)
CPC G09G 3/006 (2013.01) [G06F 1/1652 (2013.01); G09G 3/035 (2020.08); G09G 3/3208 (2013.01); G09G 2320/046 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electronic device comprising:
a housing;
a rollable display configured to be supported by the housing and provided with a display area whose area is configured to be adjusted via a movement of at least a part of the housing in a first direction, the rollable display including a first area fixedly viewable to an outside and a second area configured to be variably viewable to the outside based on the movement of the at least part of the housing;
a memory configured to store therein burn-in information of the rollable display, the memory including:
a first memory area configured to store global burn-in information corresponding to n designated block areas divided from a whole area of the display area including the first area and the second area, and
a second memory area configured to store local burn-in information corresponding to m designated block areas divided from a boundary area located on a boundary between the first area and the second area of the rollable display and having a designated width; and
a processor,
wherein the processor is configured to:
obtain the global burn-in information and the local burn-in information for each designated sampling period and control to store the global burn-in information and the local burn-in information in the first memory area and the second memory area, respectively,
predict whether a burn-in occurs at least partly in the whole area of the display area based on a result of analyzing the global burn-in information,
predict whether the burn-in occurs at least partly in the boundary area of the display area based on a result of analyzing the local burn-in information,
generate a first compensation map including local compensation data to correspond to the m block areas when it is predicted that the burn-in occurs at least partly in the boundary area,
generate a second compensation map including global compensation data to correspond to the n block areas when it is predicted that the burn-in occurs at least partly in a remaining area of the whole area excluding the boundary area, and
control the rollable display to display compensated image data based on the first compensation map and/or the second compensation map.