| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for producing an optical film having less point defects attributable to coarse particles and having antiglare property with a good production yield. <P>SOLUTION: The method for producing an optical film includes: a step of preparing a first coating liquid containing a certain amount of light-transmitting particles, a first resin and a first solvent, and a second coating liquid containing light-transmitting particles of an amount less than the certain amount, a second resin and a second solvent; a step of applying the second coating liquid and the first coating liquid in this order from the support side on a traveling band-shaped support in the form of a multilayer to form a second coating film and a first coating film; a step of transferring the light-transmitting particles in the first coating film to the side of the second coating film while drying the first coating film and the second coating film; and a step of curing the first coating film and the second coating film to form an antiglare layer including the light-transmitting particles and a resin layer, wherein when the average particle diameter of the light-transmitting particles is A and the average layer thickness of the antiglare layers is L, the presence ratio of the central position of the light-transmitting particle and the distance thereof from the support side in the resin layer, when viewing the cross-section in the vertical direction of the antiglare layer, satisfy the following relationship: (1) 2L/3-A/6 to L-A/2: 40% to 100%, (2) L/3+A/6 to 2L/3-A/6: 0% to 50%, (3) A/2 to L/3+A/6: 0% to 10%. <P>COPYRIGHT: (C)2013,JPO&INPIT |
