Display apparatus, inspection apparatus for the display apparatus, and control method of the inspection apparatus

An inspection apparatus comprising:

• a memory;
• an image sensor configured to obtain a luminance image of a display apparatus, the display apparatus comprising a plurality of sub-pixels;
• and
• a processor configured to recognize a defective sub-pixel among the plurality of sub-pixels, based on the obtained luminance image,
• wherein the processor is further configured to recognize location information of the recognized defective sub-pixel, and is further configured to control the memory to store the recognized location information of the defective sub-pixel,
• wherein the memory is removably connected to at least one of the display apparatus and the processor,
• wherein the location information, stored in the memory and of the defective sub-pixel, comprises information indicating to limit an electric signal, applied to the defective sub-pixel of the display apparatus,
• wherein the memory stores normal location information and normal luminance correction information for each of normal sub-pixels among the plurality of sub-pixels, and
• the normal luminance correction information for each of the normal sub-pixels comprises information corresponding to an average value of luminance values of the plurality of sub-pixels and a luminance value for each of the normal sub-pixels.

A control method of an inspection apparatus, the control method comprising:

• obtaining a luminance image of a display panel comprising a plurality of sub-pixels;
• obtaining luminance values for each of the plurality of sub-pixels based on the obtained luminance image;
• recognizing a luminance value, of the luminance values, as less than or equal to a reference luminance value among the obtained luminance values for each of the plurality of sub-pixels;
• recognizing a sub-pixel of the plurality of sub-pixels, having the recognized luminance value as a defective sub-pixel;
• recognizing location information of the recognized defective sub-pixel;
• storing the recognized location information of the defective sub-pixel in a memory;
• and
• storing normal location information and normal luminance correction information for each of normal sub-pixels among the plurality of sub-pixels, and
• wherein the normal luminance correction information for each of the normal sub-pixels comprises information corresponding to an average value of luminance values of the plurality of sub-pixels and a luminance value for each of the normal sub-pixels.