Apparatus and method for manufacturing electro-optical devices
View Patent ↗The present invention provides an electro-optical device capable of achieving an increased light emission efficiency and an enhanced visibility. An organic electroluminescents (EL) display device has a plurality of material layers including a luminescent layer. In a plurality of material layers layered in the direction of light emission from the luminescent layer, first and second insulating interlayers are disposed between a substrate, which is positioned at the outermost surface, and the luminescent layer. The first and second insulating interlayers have a refractive index lower than that of the substrate. Accordingly, by forming predetermined materials having a low refractive index, the resulting low refractive index layers have a low dielectric constant, and consequently, the capacity between wires can be reduced.
1. An electro-optical device, comprising:
a plurality of first electrodes,
an electro-optical element layer having a plurality of electro-optical elements each of which is disposed between one first electrode of the plurality of first electrodes and a second electrode;
a surface material layer disposed at an outermost surface of the electro-optical device;
a first layer that is disposed between the surface material layer and the electro-optical element layer, the first layer having a refractive index lower than a refractive index of the surface material layer;
a second layer that is disposed between the first layer and the surface material layer; and
a third layer that is disposed between the first layer and the surface material layer.
2. The electro-optical device according to claim 1 , at least one electro-optical element of the plurality of electro optical-elements being a luminescent element.
3. The electro-optical device according to claim 1 , the first layer being an insulating interlayer.
4. The electro-optical device according to claim 1 , the refractive index of the first layer being 1.5 or less.
5. The electro-optical device according to claim 1 , the refractive index of the first layer being 1.2 or less.
6. The electro-optical device according to claim 1 , the first layer including a light-transmissive and porous material.
7. The electro-optical device according to claim 1 , the first layer including at least one selected from the groups of aerogel, porous silica, magnesium fluoride, fluoropolymer, and porouspolymer.
8. The electro-optical device according to claim 1 , the first layer including a material containing at least one of inorganic particles or organic particles.
9. The electro-optical device according claim 1 , the first layer including a gel in which magnesium fluoride particles are dispersed.
10. The electro-optical device according to claim 1 , at least one electro-optical element of the plurality of electro-optical elements being an organic electroluminescent element.
11. The electro-optical device according to claim 1 , further comprising active elements.
12. The electro-optical device according to claim 11 , the active elements being transistors.
13. The electro-optical device according to claim 12 , the transistors being thin-film transistors.
14. An electronic apparatus, comprising:
the electro-optical device as set forth in claim 1 .
15. The electro-optical device according to claim 12 , the transistors being disposed between the surface material layer and the electro-optical element layer.
16. The electro-optical device according to claim 11 , the second layer being disposed between the active elements and the surface material layer.
17. The electro-optical device according to claim 1 ,
the first layer being an insulating layer, and
the second layer being an insulating layer.
18. The electro-optical device according to claim 1 , further comprising a heat release layer having a heat release function.
19. The electro-optical device according to claim 1 , further comprising a fourth layer surrounding a luminescent layer included in the electro-optical element layer, the fourth layer having a refractive index lower than the refractive index of the surface material layer.
20. The electro-optical device according to claim 1 , a light emitted from the electro-optical element layer being projected out from the surface material layer.
21. The electro-optical device according to claim 1 ,
a light emitted from at least one electro-optical element of the plurality of electro-optical elements transmitting the first layer, the second layer and the third layer.
22. The electro-optical device according to claim 1 ,
the surface material layer being a substrate above which the first layer, the second layer, the third layer, and at least one electro-optical element of the plurality of the electro-optical element are disposed.
23. The electro-optical device according to claim 19 ,
the fourth layer being an insulating layer.
24. An electro-optical device, comprising:
a first electrode;
a second electrode;
an electro-optical element that is disposed between the first electrode and the second electrode, and that emits a light or modulates a light;
a surface material layer disposed at an outermost surface of the electro-optical device;
a first layer that is disposed between the surface material layer and the first electrode, the first layer having a refractive index lower than a refractive index of the surface material layer;
a second layer that is disposed between the first layer and the surface material layer; and
a third layer that is disposed between the first layer and the surface material layer.
25. The electro-optical device according to claim 24 , the electro-optical element being a luminescent element.
26. The electro-optical device according to claim 24 , the first layer being an insulating interlayer.
27. The electro-optical device according to claim 24 , the refractive index of the first layer being 1.5 or less.
28. The electro-optical device according to claim 24 , the refractive index of the first layer being 1.2 or less.
29. The electro-optical device according to claim 24 , the first layer including a light-transmissive and porous material.
30. The electro-optical device according to claim 24 , the first layer including at least one selected from the groups of aerogel, porous silica, magnesium fluoride, fluoropolymer, and porouspolymer.
31. The electro-optical device according to claim 24 , the first layer including a material containing at least one of inorganic particles or organic particles.
32. The electro-optical device according claim 24 , the first layer including a gel in which magnesium fluoride particles are dispersed.
33. The electro-optical device according to claim 24 , the electro-optical element being an organic electroluminescent element.
34. The electro-optical device according to claim 24 , further comprising active elements.
35. The electro-optical device according to claim 34 , the active elements being transistors.
36. The electro-optical device according to claim 35 , the transistors being thin-film transistors.
37. An electronic apparatus, comprising:
the electro-optical device as set forth in claim 24 .
38. The electro-optical device according to claim 35 , the transistors being disposed between the surface material layer and the electro-optical element layer having the electro-optical element.
39. The electro-optical device according to claim 34 , the second layer being disposed between the active elements and the surface material layer.
40. The electro-optical device according to claim 24 ,
the first layer being an insulating layer, and
the second layer being an insulating layer.
41. The electro-optical device according to claim 24 , further comprising a heat release layer having a heat release function.
42. The electro-optical device according to claim 24 , further comprising a fourth layer surrounding a luminescent layer included in an electro-optical element layer having the electro-optical element, the fourth layer having a refractive index lower than the refractive index of the surface material layer.
43. The electro-optical device according to claim 24 ,
a light emitted from the electro-optical element being projected out from the surface material layer.
44. The electro-optical device according to claim 24 ,
a light emitted from the electro-optical element transmitting the first layer, the second layer and the third layer.
45. The electro-optical device according to claim 24 ,
the surface material layer being a substrate above which the first layer, the second layer, the third layer, and the electro-optical element are disposed.
46. The electro-optical device according to claim 42 ,
the fourth layer being an insulating layer.
47. The electro-optical device according to claim 1 ,
the plurality of first electrodes being disposed between the second electrode and the surface material layer.