Abstract: A display device includes a first substrate, a light emitting unit and a first micro lens unit. The light emitting unit is arranged on the first substrate to provide a light. The first micro lens unit is arranged on the light emitting unit to adjust the traveling direction of the light, wherein there is a distance from the light emitting surface of the light emitting unit to a position of half the height of the first micro lens unit, the first micro lens unit has an arc surface, the first micro lens unit has a height, and the arc surface has a curvature radius, and the distance and the curvature radius satisfy the relationship: 0.5H?D?3R1, where D represents the distance, H represents the height, and R1 represents the curvature radius.

Abstract: A display device includes a substrate, a plurality of light-emitting units, a plurality of color filter units and a protecting layer. The plurality of color filter units are disposed on the plurality of light-emitting units and include a first color filter unit. The first color filter unit is overlapped with a first light-emitting unit of the plurality of light-emitting units. The protecting layer is arranged on the plurality of color filter units. The display device has a maximum light-emitting angle ?2, the protecting layer has a refractive index n1, the first color filter unit has a width WCF along a first direction, the light-emitting layer of the first light-emitting unit has a width WL along the first direction, and the first color filter unit has a thickness HCF, a distance H is formed between the first light-emitting unit and the first color filter unit.