Optical laminate, polarizer, and display apparatus

An optical laminate comprising a translucent substrate, and at least one optical functional layer provided on the translucent substrate, wherein

• the at least one optical functional layer comprises a concave-convex shape on at least one surface, and the concave-convex shape comprises projections,
• the at least one optical functional layer comprises inorganic fine particles comprising first and second types of inorganic fine particles, and also comprises resin particles,
• an internal haze X and a total haze Y of the optical laminate satisfies the following conditions (1) to (4),
• Y>X (1),
• Y≤X+17 (2),
• Y≤57 (3),
• 19≤X≤40 (4),
• the optical laminate comprises a transmitted image clarity of 30% to 70% as measured using a 0.5-mm width optical comb,
• the number of projections comprising a height of not smaller than 0.1 μm is not less than 600 per mm2 of measurement area in the concave-convex shape as measured by optical interferometry at an outermost surface of the at least one optical functional layer,
• the number of projections comprising a height of not smaller than 0.1 μm and an area of smaller than 100 μm2 in the concave-convex shape is not smaller than 65% of the number of all projections comprising a height of not smaller than 0.1 μm in the concave-convex shape as measured by optical interferometry at the outermost surface of the at least one optical functional layer, and
• an average area of all projections comprising a height of not smaller than 0.1 μm is not greater than 500 μm2 in the concave-convex shape as measured by optical interferometry at the outermost surface of the at least one optical functional layer.