Patent ID: 11875732
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A screen saver controller comprising:
a first logic circuit for generating load data of each of a plurality of panel blocks included in a display panel based on input image data;
a second logic circuit for generating life data of each of the panel blocks based on a deterioration stress value accumulated in the display panel;
a third logic circuit for receiving the load data and the life data, and generating operation data including a start time gain data indicating a start time set to a first time when the load data and the life data are greater than a threshold and otherwise set to a second time after the first time; and
a fourth logic circuit for receiving the input image data and the operation data, and generating screen saver data based on the input image data and the operation data,
wherein the screen saver controller maintains a luminance of the display panel until the start time and then starts adjusting the luminance at the start time based on the screen saver data when operating in a screen saver mode for performing a screen saver operation,
wherein the luminance is maintained for a first period ending at the first time and the luminance begins being gradually decreased at the first time when the load data and the life data are greater than the threshold, and otherwise the luminance is maintained for a second period larger than the first period that ends at the second time and the luminance begins being gradually decreased at the second time.