Display device, display control circuit and image processing method

A display control circuit, comprising:

• a luminance distribution determination circuit configured to determine luminance distribution for data of a surrounding area of a first input frame, wherein the first input frame comprises a main area and the surrounding area;
• and
• an image adjustment circuit coupled to the luminance distribution determination circuit, and configured to adjust the data of the surrounding area of the first input frame according to the luminance distribution to generate a first output frame, such that a surrounding area of the first output frame has a less luminance than a main area of the first output frame has.

An image processing method of a display control circuit, comprising:

• determining, by a luminance distribution determination circuit of the display control circuit, luminance distribution for data of a surrounding area of a first input frame, wherein the first input frame comprises a main area and the surrounding area;
• and
• adjusting, by an image adjustment circuit of the display control circuit, the data of the surrounding area of the first input frame according to the luminance distribution to generate a first output frame, such that a surrounding area of the first output frame has a less luminance than a main area of the first output frame has.

A display device comprising:

• an OLED display panel being driven to display a first output frame in a normal mode and display a second output frame in a power saving mode, wherein the OLED display panel has less power consumption in the power saving mode than in the normal mode, and a surrounding area, which is an area other than a main area, of the second output frame has a less luminance than the surrounding area of the first output frame has;
• and
• a display control circuit coupled to the OLED display panel and configured to generate the first output frame and the second output frame, which results in a first luminance difference between the luminance of the main area of the second output frame and the luminance of the main area of the first output frame and a second luminance difference between the luminance of the surrounding area of the second output frame and the luminance of the surrounding area of the first output frame, wherein the second luminance difference is greater than the first luminance difference.