Liquid crystal display structure

1. A liquid crystal display structure, comprising:

a liquid crystal panel having a liquid crystal layer, wherein the liquid crystal layer has a plurality of photo-polymerizable monomers; and

a backlight module having a light emitting unit for emitting an output light, wherein a difference between the smallest value of a spectrum interval of the output light and the largest value of an absorption spectrum interval of the photo-polymerizable monomers in the liquid crystal layer is larger than or equal to 40 nm.

2. The liquid crystal display structure of claim 1 , wherein the light emitting unit includes:

a light source; and

a filter film disposed on the light source,

wherein an original light is emitted from the light source and then passes through the filter film to become the output light, and

wherein the difference between the smallest value of the spectrum interval of the output light and the largest value of the absorption spectrum interval of the photo-polymerizable monomers in the liquid crystal layer is larger than or equal to 40 nm.

3. The liquid crystal display structure of claim 2 , wherein the light source includes a cold cathode fluorescent lamp or a light-emitting diode module.

4. The liquid crystal display structure of claim 2 , wherein the filter film includes a polymer and an absorbent.

5. The liquid crystal display structure of claim 1 , wherein the light source includes a light-emitting diode module.

6. The liquid crystal display structure of claim 1 , wherein a weight percentage of the photo-polymerizable monomers in the liquid crystal layer is between 0.1% and 10.0%.

7. The liquid crystal display structure of claim 1 , wherein the largest value of the absorption spectrum interval of the photo-polymerizable monomers in the liquid crystal layer is smaller than or equal to 340 nm.

8. The liquid crystal display structure of claim 1 , wherein the smallest value of the spectrum interval of the output light is larger than or equal to 380 nm.

9. The liquid crystal display structure of claim 1 , wherein the photo-polymerizable monomers in the liquid crystal layer are selected from a group consisting of formula 1, formula 2, formula 3, formula 4, and formula 5:

wherein R is selected from —H, —F, —Cl, —CN, —SCN, —SF 5 H, —NO 2 , an alkyl group having a straight-chain or a branch-chain, or —X 2 —Sp 2 -P 2 ;

wherein X 1 and X 2 are independently selected from —O—, —S—, —OCH 2 —, —CO—, —COO—, —OCO—, —CO—N 0 R—, —N 0 R—CO—, —OCH 2 —, —SH 2 —, —CH 2 S—, —CH═CH—COO—, —OOC—CH═CH—, or a single bond;

Sp 1 and Sp 2 are independently selected from a spacer group or a single group;

Lm (m≧1) is selected from —F, —Cl, —CN, an alkyl group having one to seven carbon atoms, an alkylcarbonyl group, an alkoxycarbonyl group, or an alkylcarbonyloxy group, and at least one hydrogen atom of the alkyl group, the alkylcarbonyl group, the alkoxycarbonyl group, or an alkylcarbonyloxy group can be substituted with a fluorine atom or a chlorine atom;

n≧1;

Q 1 and Q 2 are independently selected from —O—, —S—, —CO—, —COO—, —OCO—, —OCH 2 —, —SCH 2 —, —CH 2 S—, —CH═CH—COO—, —OOC—CH═CH—, —CF 2 O—, —OCF 2 —, —CF 2 S—, —SCF 2 —, —C 2 H 4 —, —CF 2 —CH 2 —, —CH 2 —CF 2 —, —CF 2 —CF 2 —, —CH═CH—, —CF═CF—, —C≡C—, or a single bond; and

P 1 and P 2 are a polymerizable group independently selected from formula 6, formula 7, formula 8, formula 9, or formula 10:

wherein W is selected from —H, —CH 3 , —F, —CF 3 , or -Ph;

wherein Z is selected from —H, —CH 3 , —F, —CF 3 , or -Ph;

wherein Y is selected from —F, —CF 3 , or -Ph;

wherein Q is selected from —CH 3 , —F, —CF 3 , or -Ph.

10. The liquid crystal display structure of claim 9 , wherein R is an alkyl group having one to twelve carbon atoms, wherein one or two nonadjacent —CH 2 — can be substituted with —O—, —S—, —CH═CH—, —CO—, —OCO—, —COO—, —S—CO—, —CO—S—, or alkyne, and the oxygen atom and sulfur atom are not directly bonded with each other.