Composition

1. A composition comprising:

a compound represented by Formula (1′) below; and

a polymerizable smectic liquid crystal compound,

where: R 1 represents a C1-C10 alkyl group which can have a halogen atom, a C1-C10 acyl group which can have a halogen atom, a C2-C10 alkoxycarbonyl group which can have a halogen atom, a C1-C10 acyloxy group which can have a halogen atom, or —N(R 10 )(R 11 );

R 10 represents a C1-C20 acyl group, a C1-C20 alkylsulfonyl group, or a C6-C20 arylsulfonyl group;

R 11 represents a hydrogen atom or a C1-C20 alkyl group;

R 10 and R 11 can bond to each other, and form, with a nitrogen atom to which R 10 and R 11 bond, a ring including —N—CO— or —N—SO 2 —;

at least one hydrogen atom of any of the alkyl group, the acyl group, the alkoxycarbonyl group, the acyloxy group, the alkylsulfonyl group, and the arylsulfonyl group can be substituted by a halogen atom, a hydroxy group, an unsubstituted amino group, or a substituted amino group;

—O— or —NR 20 — can be inserted between carbon atoms of the alkyl group;

R 20 represents a hydrogen atom or a C1-C20 alkyl group;

R 5 is a group selected from the following groups:

where: m is an integer from 0 to 10; and

in a case where there are two m in the same group, the two m have the same value or differing values.

2. The composition as set forth in claim 1 , wherein the compound has a maximum absorption wavelength in a range of 350 nm to 510 nm.

3. The composition as set forth in claim 1 , further comprising:

a polymerization initiator.

4. A polarizing film comprising:

the composition recited in claim 1 .

5. The polarizing film as set forth in claim 4 , wherein a maximum absorption wavelength (λ max1 ) of the polarizing film is longer than a maximum absorption wavelength (λ max2 ) of the compound represented by the Formula (1′).

6. The polarizing film as set forth in claim 5 , wherein a difference between the λ max1 and the λ max2 is 10 nm or more.

7. The polarizing film as set forth in claim 4 , wherein the polarizing film exhibits a Bragg peak in X-ray diffraction measurement.

8. A liquid crystal display device comprising:

the polarizing film recited in claim 4 .

9. A liquid crystal cell comprising:

the polarizing film recited in claim 4 ;

a liquid crystal layer; and

a base.

10. The liquid crystal cell as set forth in claim 9 , wherein the polarizing film is provided between the base and the liquid crystal layer.

11. The liquid crystal cell as set forth in claim 10 , further comprising:

a color filter provided between the base and the liquid crystal layer.

12. A circularly polarizing plate comprising:

the polarizing film recited in claim 4 ; and

a quarter-wave plate.

13. An organic EL display device comprising:

the polarizing film recited in claim 4 ; and

an organic EL element.

14. An organic EL display device comprising:

the circularly polarizing plate recited in claim 12 ; and

an organic EL element.