FIELD: physics.
SUBSTANCE: light-emitting unit includes a substrate with a first surface and a second surface which is located on a side opposite to the first surface, a plurality of light-emitting elements arranged on the first surface, and a plurality of light-emitting element excitation units, each for exciting at least two light-emitting elements included in the plurality of light emitting elements. Multiple excitation nodes of the light emitting element are placed on the second surface in a plurality of aligned states which differ from each other, or are arranged on the second surface in a non-aligned state.
EFFECT: objective is to provide a technology capable of improving the quality of the light-emitting unit image.
6 cl, 20 dwg
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