The present disclosure relates to increasing the external efficiency of light emitting diodes, and specifically to increasing the outcoupling of light from an organic light emitting diode utilizing a diffraction grating. The plurality of operation units include a plurality of types of operation units with different data paths that are suited to special-purpose, processing, with an arrangement of operation units of the same type in the first direction or the second direction being formed in at least part of the data processing block. The insulator may be disposed over the conductive pin and spaced away from the terminal board. The stiffener is coupled to the housing by the rib mating surface abutting against a wall face of the stiffener opening, and the rib mounting surface resting on a peripheral edge of the stiffener that defines the opening.