Driving method for pixel circuits based on mapping technique and display device using same

A display device, comprising:

• a memory, configured to store data and instructions;
• a processing circuit, coupled to the memory to access the data and the instructions, configured to:
• divide an input image into a plurality of image blocks;
• and
• control a plurality of pixel groups corresponding to the image blocks, respectively, and wherein step of controlling a corresponding one of the pixel groups corresponding to one of the image blocks comprises:
• utilize a lookup table to map a plurality of input grayscale values comprised in the one of the image blocks to a plurality of duty cycles, wherein the lookup table comprises a first duty cycle set corresponding to different red grayscale values, a second duty cycle set corresponding to different green grayscale values, and a third duty cycle set corresponding to different blue grayscale values, and the first duty cycle set, the second duty cycle set, and the third duty cycle set define different grayscale-to-duty-cycle mapping relationships with respect to each other, wherein a plurality of red grayscale values, a plurality of green grayscale values, and a plurality of blue grayscale values comprised in the input grayscale values are mapped to a plurality of first duty cycles, a plurality of second duty cycles, and a plurality of third duty cycles according to the first duty cycle set, the second duty cycle set, and the third duty cycle set, respectively;
• determine one of the first duty cycles as a desired duty cycle;
• map a plurality of the input grayscale values, the second duty cycles, and the third duty cycles to a plurality of data voltages according to the desired duty cycle;
• and
• a display panel, coupled to the processing circuit, configured to drive a plurality of pixel circuits included in the corresponding one of the pixel groups according to the desired duty cycle and the data voltages.