A display device, the display control device and a display method are provided. Display device according to one embodiment of the present invention, receiving, and normal drive mode or the color weakness correction drive corresponding to the color weakness characteristic information of the user, the image color weakness characteristic information of the RGB data receiving unit which receives RGB data, a user's to be displayed mode of any one crystal drive mode portion for determining the driving mode, RGB data converting unit corresponding to the color weakness characteristic information of the user generates a corrected RGB data by converting the RGB data, the reference-based shipbuilding used in the normal operation mode, and select based shipbuilding corresponding to the memory unit, the reference-based lines or color weakness characteristic of the user of the one or more correction field shipbuilding information for storing one or more correction field shipbuilding used in the color weakness correction drive mode, and the selected type wherein on the basis of the RGB data or shipbuilding day corresponding to the corrected RGB data Receiving a data signal and the data signal output section for outputting a signal emitter, and includes a light emitting element for emitting light with a brightness corresponding to the data signal.