Abstract: A display device includes a first substrate, a second substrate, an adhesive layer, at least one light-emitting unit, and an intermediate layer. The second substrate is disposed opposite to the first substrate. The adhesive layer is disposed between the first substrate and the second substrate. The light-emitting unit is disposed between the adhesive layer and the first substrate, and the light-emitting unit includes at least one light-emitting element. The surface of the light-emitting element facing toward the adhesive layer is configured with a plurality of micro structures. The intermediate layer is disposed between the adhesive layer and the micro structures. The refractive index of the intermediate layer is greater than 1 and less than the refractive index of the adhesive layer.

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.