| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical laminate that can reduce generation of curling and has excellent workability upon sticking to a polarizer or a display panel.SOLUTION: The optical laminate includes a hard coat layer 10 on one surface of a triacetylcellulose substrate 11. By the measurement of a Martens hardness (N1) on a surface of the hard coat layer 10, a Martens hardness (N2) at the center in a cross section of the hard coat layer 10, and a Martens hardness (N3) at the center in a cross section of the triacetyl cellulose base material 11 by a nanoindentation method under a load of 10 mN, the Martens hardness (N1), the Martens hardness (N2) and the Martens hardness (N3) are 200 to 450 N/mm, 100 to 300 N/mm, and 150 to 250 N/mm, respectively.SELECTED DRAWING: Figure 1 |
