Device

1 . A color conversion device comprising at least a first pixel comprising at least a matrix material containing a light emitting moiety, and a bank comprising a polymer material and a saccharide.

2 . The device of claim 1 , wherein the matrix material comprises a (meth)acrylate polymer.

3 . The device of claim 1 , wherein the first pixel is a solid layer obtained or obtainable by curing a first composition containing at least one acrylate monomer together with at least one light emitting moiety.

4 . The device of claim 1 , wherein the polymer material is a thermosetting resin.

5 . The device of claim 1 , wherein the bank further comprises a surfactant.

6 . The device of claim 1 , wherein the bank further comprises a nonionic surfactant.

7 . The device of claim 1 , wherein the saccharide is an oligosaccharide comprising an alkylene oxide having 1 to 6 carbon atoms.

8 . The device of claim 1 , wherein the bank further comprises a colorant.

9 . The device of claim 1 , further comprising a second pixel.

10 . The device of claim 1 , wherein at least one pixel further comprises at least one light scattering particle in the matrix material.

11 . The device of claim 1 , wherein the first pixel consists of one pixel or two or more sub-pixels configured to emit red-color when irradiated by an excitation light.

12 . The device of claim 1 , wherein the bank is configured to determine the area of the first pixel and at least a part of the bank is directly contacting to at least a part of the first pixel.

13 . The device of claim 1 , wherein the bank is photolithographically patterned and the first pixel is surrounded by the bank.

14 . The device of claim 1 , wherein the first pixel is obtained or obtainable from a first composition, or is a cured layer of the first composition, wherein the first composition comprises:

i) at least one (meth)acrylate monomer represented by following chemical formula (I), and

ii) another material;

wherein

X 1 is a non-substituted or substituted alkyl group, aryl group or an alkoxy group or an ester group;

X 2 is a non-substituted or substituted alkyl group, aryl group or an alkoxy group or an ester group;

R 1 is a hydrogen atom, halogen atom of Cl, Br, or F, methyl group, alkyl group, aryl group, alkoxy group, ester group, or a carboxylic acid group; and

R 2 is a hydrogen atom, halogen atom of Cl, Br, or F, methyl group, alkyl group, aryl group, alkoxy group, ester group, or a carboxylic acid group.

15 . The device of claim 1 , wherein the bank is obtained or obtainable from a second composition, or is a cured layer of the second composition, wherein the second composition comprises:

(I) an alkaline soluble polymer,

(II) a polymerization initiator, and

(III) a chemical compound containing at least two (meth) acryloyloxy groups.

16 . An optical device comprising at least one color conversion device of claim 1 and a functional medium configured to modulate a light or configured to emit light.

17 . A method for fabricating the color conversion device of claim 1 , the method comprising at least the following steps:

providing a second composition onto a surface of a supporting medium,

curing the second composition,

applying photo-patterning to the cured composition to fabricate a bank and a patterned pixel region,

providing a first composition to at least one pixel region, and

curing the first composition.

18 . The color conversion device obtainable or obtained from the method of claim 17 .

19 . The device of claim 14 , wherein

X 1 is

wherein

n is 0 or 1;

X 2 is

wherein

m is 0 or 1;

wherein R 3 is a straight alkylene chain or alkoxylene chain having 1 to 25 carbon atoms, a cycloalkane having 3 to 25 carbon atoms or an alkyl group having 3 to 25 carbon atoms, which may be substituted by one or more radicals R a , where one or more non-adjacent CH 2 groups may be replaced by R a C═CR a , C≡C, Si(R a ) 2 , Ge(R a ) 2 , Sn(R a ) 2 , C═O, C═S, C═Se, C═NR a , P(═O)(R a ), SO, SO 2 , NR a , OS, or CONR a and where one or more H atoms may be replaced by D, F, Cl, Br, I, CN or NO 2 ;

R 4 is a straight alkylene chain or alkoxylene chain having 1 to 25 carbon atoms, a cycloalkane having 3 to 25 carbon atoms or an alkyl group having 3 to 25 carbon atoms, which may be substituted by one or more radicals R a , where one or more non-adjacent CH 2 groups may be replaced by R a C═CR a , C≡C, Si(R a ) 2 , Ge(R a ) 2 , Sn(R a ) 2 , C═O, C═S, C═Se, C═NR a , P(═O)(R a ), SO, SO 2 , NR a , OS, or CONR a and where one or more H atoms may be replaced by D, F, Cl, Br, I, CN or NO 2 ; and

R a is at each occurrence, identically or differently, H, D or an alkyl group having 1 to 20 carbon atoms, cyclic alkyl or alkoxy group having 3 to 40 carbon atoms, an aromatic ring system having 5 to 60 carbon ring atoms, or a hetero aromatic ring system having 5 to 60 carbon atoms, wherein H atoms may be replaced by D, F, Cl, Br, I; two or more adjacent substituents Ra here may also form a mono- or polycyclic, aliphatic, aromatic or heteroaromatic ring system with one another.

20 . The device of claim 19 , wherein at least m or n is 1, R 3 is a straight alkylene chain or alkoxylene chain having 1 to 15 carbon atoms, and R 4 is a straight alkylene chain or alkoxylene chain having 1 to 15 carbon atoms.