An optical film comprising at least one compound represented by formula (1) is disclosed. In the formula, Y
11
, Y
12
and Y
13
each independently represent methine or a nitrogen atom; R
11
, R
12
and R
13
each independently represent formula (A), (B) or (C) or a hydrogen atom, provided that at least two of R
11
, R
12
and R
13
each independently represent formula (A), (B) or (C). In three formulae, L
12
, L
22
and L
32
each represent a
5
-membered heterocyclic group.
公开了一种包含至少一种由式(1)表示的化合物的光学薄膜。在该式中,Y11、Y12和Y13分别独立表示亚甲基或氮原子;R11、R12和R13分别独立表示式(A)、(B)或(C)或氢原子,但至少有两个R11、R12和R13分别独立表示式(A)、(B)或(C)。在三个式子中,L12、
L22和L32各代表一个5-成员杂环基团。