Patent ID: 11955081
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 18:
19. The OLED display device of claim 16, wherein the controller comprises:
a still image detector configured to receive input image data at an input frame frequency, to divide the input image data into a plurality of partial image data, and to determine whether each of the plurality of partial image data represents a still image,
wherein, when at least one partial image data of the plurality of partial image data represents the still image, the controller is configured to set a portion of a frame period corresponding to a portion of the display panel as the masking period to drive the portion of the display panel corresponding to the at least one partial image data at a driving frequency lower than the input frame frequency, and
wherein the power supply is configured to provide the bottom electrode voltage to the bottom electrode of each of the plurality of pixels during the masking period.