Display system

A display system comprising:

• an organic EL display panel including a plurality of pixels;
• an organic EL display device including a driving circuit;
• and
• a main body including an image processing circuit configured to supply display data to the organic EL display device;
• wherein the image processing circuit of the main body includes;
• a detection part configured to detect a fixed pattern displayed on the organic EL display panel within a period of time when a power supply of the organic EL display device is switched ON;
• a first memory configured to store a display position of the fixed pattern detected by the detection part when the power supply is switched OFF;
• a reading part configured to read the display position of the fixed pattern stored in the first memory and send the display position to the driving circuit;
• and
• a correction part configured to correct image data input to a pixel at the display position of the fixed pattern stored in the first memory based on a comparison results sent from the driving circuit of the organic EL display device;
• and wherein the driving circuit of the organic EL display device includes;
• a second memory configured to store element characteristics of a pixel of the organic EL display panel before deterioration;
• a measuring part configured to measure element characteristics of a pixel at the display position of the fixed pattern sent from the reading part of the main body;
• a comparison part configured to compare the element characteristics measured by the measuring part and the element characteristics stored in the second memory;
• and
• a sending part configured to send a comparison result of the comparison part to the main body.