Inkjet printing apparatus, inkjet printing method using the same, electronic device including display device including light-emitting element manufactured by inkjet printing method

An inkjet printing method comprising:

• setting a correction data;
• receiving print data comprising a first grayscale data, a second grayscale data, and the correction data;
• activating a normal nozzle unit to a discharge state based on the first grayscale data;
• discharging a first amount of ink to a light-emitting area of a light-emitting element through the normal nozzle unit driven by a first driving signal;
• activating a correction nozzle unit to a discharge state based on the second grayscale data;
• generating a second driving signal based on a correction parameter corresponding to the correction data;
• and
• discharging a second amount of the ink different from the first amount to the light-emitting area through the correction nozzle unit driven by the second driving signal.

An electronic device comprising a display device configured to display an image,

• wherein the display device comprises a light-emitting element manufactured by an inkjet printing method,
• wherein the inkjet printing method comprises:
• setting a correction data;
• receiving print data comprising a first grayscale data, a second grayscale data, and the correction data;
• activating a normal nozzle unit to a discharge state based on the first grayscale data;
• discharging a first amount of ink to a light-emitting area of a light-emitting element through the normal nozzle unit driven by a first driving signal;
• activating a correction nozzle unit to a discharge state based on the second grayscale data;
• generating a second driving signal based on a correction parameter corresponding to the correction data;
• and
• discharging a second amount of the ink different from the first amount to the light-emitting area through the correction nozzle unit driven by the second driving signal.