Light control film
View Patent ↗Disclosed is a light control film, comprising: two transparent electroconductive resin substrates; and a light control layer sandwiched between the two transparent electroconductive resin substrates, the light control layer comprising: a resin matrix; and a light control suspension dispersed in the resin matrix, wherein at least one of the transparent electroconductive resin substrates has, on the light control layer side thereof, a primer layer, and the primer layer is made of a thin film comprising a material containing a urethane acrylate containing a pentaerythritol skeleton. Thus, it is possible to provide a light control film that improves the adhesion between a film matrix and a substrate, and that achieves a stable light control function.
1. A light control film, comprising: two transparent electroconductive resin substrates; and a light control layer sandwiched between the two transparent electroconductive resin substrates, the light control layer comprising: a resin matrix; and a light control suspension dispersed in the resin matrix,
wherein at least one of the transparent electroconductive resin substrates has, on the light control layer side thereof, a primer layer, and
the primer layer is made of a film comprising a material containing a urethane acrylate containing a pentaerythritol skeleton.
2. The light control film according to claim 1 , wherein the primer layer is made of the film comprising the material containing the urethane acrylate containing not only the pentaerythritol skeleton but also an IPDI (3-isocyanatomethyl-3,5,5-trimethylcyclohexyl isocyanate) skeleton.
3. The light control film according to claim 2 , wherein the primer layer contains oxide fine particles.
4. The light control film according to claim 3 , wherein the oxide fine particles are any one of SiO 2 , ITO and ZrO 2 , or a mixture thereof.
5. The light control film according to claim 4 , wherein the primer layer is made of the film wherein the urethane acrylate is thermally cured or optically cured.
6. The light control film according to claim 3 , wherein the primer layer is made of the film wherein the urethane acrylate is thermally cured or optically cured.
7. The light control film according to claim 2 , wherein the primer layer is made of the film wherein the urethane acrylate is thermally cured or optically cured.
8. The light control film according to claim 7 , wherein the film thickness of the primer layer is 500 nm or less.
9. The light control film according to claim 2 , wherein the film thickness of the primer layer is 500 nm or less.
10. The light control film according to claim 1 , wherein the primer layer contains oxide fine particles.
11. The light control film according to claim 10 , wherein the oxide fine particles are any one of SiO 2 , ITO and ZrO 2 , or a mixture thereof.
12. The light control film according to claim 11 , wherein the primer layer is made of the film wherein the urethane acrylate is thermally cured or optically cured.
13. The light control film according to claim 11 , wherein the film thickness of the primer layer is 500 nm or less.
14. The light control film according to claim 10 , wherein the primer layer is made of the film wherein the urethane acrylate is thermally cured or optically cured.
15. The light control film according to claim 14 , wherein the film thickness of the primer layer is 500 nm or less.
16. The light control film according to claim 10 , wherein the film thickness of the primer layer is 500 nm or less.
17. The light control film according to claim 1 , wherein the primer layer is made of the film wherein the urethane acrylate is thermally cured or optically cured.
18. The light control film according to claim 17 , wherein the film thickness of the primer layer is 500 nm or less.
19. The light control film according to claim 1 , wherein the film thickness of the primer layer is 500 nm or less.
20. The light control film according to claim 19 , wherein the primer layer is made of the film wherein the urethane acrylate is thermally cured or optically cured.
21. The light control film according to claim 1 , wherein the resin matrix contains (A) a resin with a substituent having an ethylenically unsaturated bond.
22. The light control film according to claim 1 , wherein the at least one transparent electroconductive resin substrate having the primer layer comprises a transparent resin substrate and a transparent electroconductive film, the transparent electroconductive film being at least one selected from the group consisting of an ITO film, a SnO 2 film, an In 2 O 3 film and an organic conductive film.
23. The light control film according to claim 1 , wherein the resin matrix contains (A) a resin with a substituent having an ethylenically unsaturated bond and, the at least one transparent electroconductive resin substrate having the primer layer comprises a transparent resin substrate and a transparent electroconductive film, the transparent electroconductive film being at least one selected from the group consisting of an ITO film, a SnO 2 film, an In 2 O 3 film and an organic conductive film.