Patent ID: 11915659
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 11:
12. A display device, comprising:
a display panel including a pixel;
a driving controller which receives an image signal and outputs an image data signal in which the image signal is compensated; and
a data driving circuit which provides the pixel with a data signal corresponding to the image data signal, the driving controller including:
a memory which provides a previous hysteresis state value of a previous frame and receives a current hysteresis state value of a current frame;
a multiplexer which outputs any one of the image signal and the image data signal as an output signal;

a hysteresis calculator which calculates the current hysteresis state value of the current frame based on the output signal from the multiplexer and the previous hysteresis state value of the previous frame, form the memory, and stores the current hysteresis state value in the memory; and
a compensator which calculates a compensation value based on the image signal and the previous hysteresis state value from the memory and compensates for the image signal depending on the compensation value to output the image data signal,

wherein the hysteresis calculator outputs a sum of multiplication of the output signal from the multiplexer and a first weight and multiplication of the previous hysteresis state value and a second weight as the current hysteresis state value.