Display cell structure and electrode protecting layer compositions

1. A display device comprising display cells formed from a composition comprising a polar oligomeric or polymeric material which comprises at least one group selected from the group consisting of nitro, hydroxyl, alkoxy, halo, cyano and sulfonate, wherein said display cells have a resistivity in the range of about 10 7 to about 10 12 ohm cm.

2. The display device of claim 1 further comprising an electrode protecting layer formed from a second composition comprising a polar oligomeric or polymeric material which comprises at least one group selected from the group consisting of nitro, hydroxyl, alkoxy, halo, cyano and sulfonate, wherein said electrode protecting layer has a resistivity in the range of about 10 7 to about 10 12 ohm cm.

3. The play device of claim 2 wherein said electrode protecting layer is a primer layer.

4. The display device of claim 2 wherein said electrode protecting layer is a sealing layer.

5. The display device of claim 2 wherein said electrode protecting layer is an adhesive layer.

6. The display device of claim 2 wherein said electrode protecting layer is a tie layer.

7. The display device of claim 6 wherein said tie layer has areas of different colors.

8. the display device of claim 1 which is an electrophoretic display.

9. The display device of claim 1 which is a liquid crystal display.

10. A method for improving the performance of an electrophoretic display comprising:

(i) forming a composition comprising a polar oligomeric or polymeric material which comprises at least one group selected from the group consisting of nitro, hydroxyl, alkoxy, halo, cyano and sulfonate;

(ii) forming display cells having an average crosslinking density of below about 1 crosslink point per 80 Dalton molecular weight from said composition; and

(iii) filling said display cells with an electrophoretic fluid.

11. The methhod of claim 10 wherein said polar oligomeric or polymeric material has a glass transition temperature below about 100° C.

12. The method of claim 11 wherein said glass transition temperature is below about 60° C.

13. The method of claim 10 wherein said crosslinking density is below about 1 crosslink point per 120 Dalton molecular weight.

14. The method of claim 10 wherein said composition further comprises a multi-functional monomer or oligomer.

15. The method of claim 10 wherein said composition further comprises a releasing agent.

16. The method of claim 10 wherein said composition further comprises an adhesion promoter.

17. The method of claim 10 wherein said composition further comprises a photoinitiator.

18. The method of claim 10 wherein said composition is colored.

19. A method for improving the performance of an electrophoretic display comprising:

(i) forming a composition comprising a polar oligomeric or polymeric material which comprises at least one group selected from the group consisting of nitro, hydroxyl, alkoxy, halo, cyano and sulfonate, wherein the concentration of said polar oligomeric or polymeric material is no less than about 1% by weight;

(ii) forming display cells from said composition; and

(iii) filling said display cells with an electrophoretic fluid.

20. The method of claim 19 wherein said concentration is no less than about 3% by weight.

21. The method of claim 20 wherein said concentration is no less than about 10% by weight.

22. A method for improving the performance of an electrophoretic display comprising:

(i) forming a composition comprising a polyhydroxy functionalized polyester acrylate or alkoxylated acrylate;

(ii) forming display cells from said composition; and

(iii) filling said display cells with an electrophoretic fluid.

23. The method of claim 22 wherein said composition comprises an alkoxylated acrylate.

24. The method of claim 23 wherein said alkoxylated acrylate is ethoxylated nonyl phenol acrylate, ethoxylated trimethylolpropane triacrylate or ethoxylated pentaerythritol tetraacrylate.