Patent ID: 11887531
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A display device comprising:
a display panel, which displays an image;
a panel driver, which drives the display panel; and
a driving controller, which controls a drive of the panel driver, the driving controller comprising:
a compensation determination block, which is activated after a still image is displayed for a predetermined time or more and generates a compensation value based on a final afterimage component calculated using an afterimage algorithm obtained by a combination of a first afterimage calculation equation and a second afterimage calculation equation; and
a data compensation block, which receives an image signal and generates a compensation image signal by compensating the image signal based on the compensation value,
wherein the compensation determination block generates the first and second afterimage calculation equations by reflecting a difference in grayscale between the still image and a target image and a time during which the still image is displayed, and
the target image corresponds to an original image of the image signal without an afterimage,
wherein the time, during which the still image is displayed, is divided into a first period and a second period,
the compensation determination block calculates a first afterimage component for the first period using the first afterimage calculation equation, calculates a second afterimage component for the second period using the second afterimage calculation equation and calculates the final afterimage component based on the first afterimage component and the second afterimage component.