Display device
View Patent ↗A display device having a light-emitting element and a see-through capability, with which a variety of display modes can be exhibited depending on a use application or situation. In such a display device having a see-through capability, between a first display portion having pixels including dual-emission type light-emitting elements and a second display portion having a light-scattering liquid crystal layer, a shutter-shaped light-blocking unit is provided so that a variety of display modes can be exhibited depending on use applications or situations by selecting modes of the first display portion, the second display portion, and the shutter-shaped light-blocking unit.
1. A display device comprising:
a first support having a light-transmitting property;
a first display portion comprising a plurality of pixels each including a dual-emission type light-emitting element, provided over the first support;
a second support having a light-transmitting property provided opposite to the first support;
a second display portion comprising a light-scattering liquid crystal layer, provided over the second support so as to face the first display portion; and
a shutter-shaped light-blocking unit between the second display portion and the first display portion, the shutter-shaped light-blocking unit includes a light-blocking layer and a movable light-blocking layer,
wherein the movable light-blocking layer is provided with an opening portion,
wherein the opening portion is superposed with a part of the plurality of pixels,
wherein the movable light-blocking layer is capable of blocking light passing through the opening portion,
wherein the first display portion has a light-transmitting property when the dual-emission type light-emitting element is in a non-light-emission state,
wherein the second display portion has a light-transmitting property when the light-scattering liquid crystal layer is in a light-transmitting state, and
wherein the second display portion conducts a color display when the movable light-blocking layer is not superposed with the opening portion, and by using the first display portion as a backlight of the second display portion.
2. The display device according to claim 1 , wherein the dual-emission type light-emitting element is an organic EL element.
3. The display device according to claim 1 , wherein the light-scattering liquid crystal layer comprises a polymer dispersed liquid crystal material.
4. A display device comprising:
a first support having a light-transmitting property;
a first display portion comprising a plurality of pixels each including a dual-emission type light-emitting element, provided over the first support;
a second support having a light-transmitting property provided opposite to the first support;
a second display portion comprising a light-scattering liquid crystal layer, provided over the second support so as to face the first display portion; and
a plurality of shutters each including a light-blocking layer and a movable light-blocking layer being provided with an opening portion,
wherein the movable light-blocking layer is capable of blocking light passing through the opening portion,
wherein the opening portion is superposed with a part of the plurality of pixels,
wherein the plurality of shutters are provided between the first display portion and the second display portion,
wherein the first display portion has a light-transmitting property when the dual-emission type light-emitting element is in a non-light-emission state,
wherein the second display portion has a light-transmitting property when the light-scattering liquid crystal layer is in a light-transmitting state, and
wherein the second display portion conducts a color display when the movable light-blocking layer is not superposed with the opening portion, and by using the first display portion as a backlight of the second display portion.
5. The display device according to claim 4 , wherein one of the plurality of shutters comprises a MEMS.
6. The display device according to claim 4 , wherein the dual-emission type light-emitting element is an organic EL element.
7. The display device according to claim 4 , wherein the light-scattering liquid crystal layer comprises a polymer dispersed liquid crystal material.
8. The display device according to claim 4 , wherein one of the plurality of pixels is provided with the movable light-blocking layer.
9. The display device according to claim 4 , wherein the plurality of pixels and the plurality of shutters are respectively provided in matrix, and light emitted from one group of the plurality of pixels aligned in a column direction is blocked by one movable light-blocking layer.
10. The display device according to claim 4 , wherein the plurality of pixels and the plurality of shutters are respectively provided in matrix, and light emitted from one group of the plurality of pixels aligned in a row direction is blocked by one movable light-blocking layer.
11. The display device according to claim 4 , wherein a background of the first display portion is black display when the movable light-blocking layer is superposed with the opening portion.
12. The display device according to claim 4 , wherein a background of the first display portion is white display when the movable light-blocking layer is not superposed with the opening portion and the second display portion is in a light-scattering state.
13. The display device according to claim 4 , wherein information on an object on the other side of the second support is displayed on the background of the first display portion when the movable light-blocking layer is not superposed with the opening portion and the second display portion is in a light-transmitting state.
14. A display device comprising:
a first support having a light-transmitting property;
a first display portion comprising a plurality of pixels including a dual-emission type light-emitting element, provided over one side of the first support;
a second support having a light-transmitting property provided opposite to the first support;
a second display portion comprising a light-scattering liquid crystal layer, provided over the second support so as to be on the other side of the first display portion; and
a plurality of shutters each including a light-blocking layer and a movable light-blocking layer being provided with an opening portion,
wherein the movable light-blocking layer is capable of blocking light passing through the opening portion,
wherein the opening portion is superposed with a part of the plurality of pixels,
wherein the plurality of shutters are provided between the first display portion and the second display portion,
wherein the first display portion has a light-transmitting property when the dual-emission type light-emitting element is in a non-light-emission state,
wherein the second display portion has a light-transmitting property when the light-scattering liquid crystal layer is in a light-transmitting state, and
wherein the second display portion conducts a color display when the movable light-blocking layer is not superposed with the opening portion, and by using the first display portion as a backlight of the second display portion.
15. The display device according to claim 14 , wherein one of the plurality of shutters comprises a MEMS.
16. The display device according to claim 14 , wherein the dual-emission type light-emitting element is an organic EL element.
17. The display device according to claim 14 , wherein the light-scattering liquid crystal layer comprises a polymer dispersed liquid crystal material.
18. The display device according to claim 14 , wherein one of the plurality of pixels is provided with the movable light-blocking layer.
19. The display device according to claim 14 , wherein the plurality of pixels and the plurality of shutters are respectively provided in matrix, and light emitted from one group of the plurality of pixels aligned in a column direction is blocked by one movable light-blocking layer.
20. The display device according to claim 14 , wherein the plurality of pixels and the plurality of shutters are respectively provided in matrix, and light emitted from one group of the plurality of pixels aligned in a row direction is blocked by one movable light-blocking layer.
21. The display device according to claim 14 , wherein a background of the first display portion is black display when the movable light-blocking layer is superposed with the opening portion.
22. The display device according to claim 14 , wherein a background of the first display portion is white display when the movable light-blocking layer is not superposed with the opening portion and the second display portion is in a light-scattering state.
23. The display device according to claim 14 , wherein information on an object on the other side of the second support is displayed on the background of the first display portion when the movable light-blocking layer is not superposed with the opening portion and the second display portion is in a light-transmitting state.
24. A display device comprising:
a first support having a light-transmitting property;
a first display portion comprising a plurality of first pixels each including a dual-emission type light-emitting element, provided over the first support;
a second support having a light-transmitting property provided opposite to the first support;
a second display portion comprising a plurality of second pixels each including a light-scattering liquid crystal layer, provided over the second support so as to face the first display portion; and
a plurality of shutters each including a light-blocking layer and a movable light-blocking layer being provided with an opening portion,
wherein the movable light-blocking layer is capable of blocking light passing through the opening portion,
wherein the opening portion is superposed with a part of the plurality of first pixels and the plurality of second pixels,
wherein the plurality of shutters are provided between the first display portion and the second display portion,
wherein the first display portion has a light-transmitting property when the dual-emission type light-emitting element is in a non-light-emission state,
wherein the second display portion has a light-transmitting property when the light-scattering liquid crystal layer is in a light-transmitting state, and
wherein the second display portion conducts a color display when the movable light-blocking layer is not superposed with the opening portion, and by using the first display portion as a backlight of the second display portion.
25. The display device according to claim 24 , wherein one of the plurality of shutters comprises a MEMS.
26. The display device according to claim 24 , wherein the dual-emission type light-emitting element is an organic EL element.
27. The display device according to claim 24 , wherein the light-scattering liquid crystal layer comprises a polymer dispersed liquid crystal material.
28. The display device according to claim 24 , wherein one of the plurality of first pixels is provided with a first movable light-blocking layer and one of the plurality of second pixels is provided with a second movable light-blocking layer.
29. The display device according to claim 24 ,
wherein the plurality of first pixels, the plurality of second pixels, and the plurality of shutters are provided in matrix respectively, and
wherein light emitted from one group of the plurality of first pixels aligned in a column direction and wherein light emitted from one group of the plurality of second pixels aligned in a column direction are blocked by one movable light-blocking layer respectively.
30. The display device according to claim 24 ,
wherein the plurality of first pixels, the plurality of second pixels, and the plurality of shutters are provided in matrix respectively, and
wherein light emitted from one group of the plurality of first pixels aligned in a row direction and light emitted from one group of the plurality of second pixels aligned in a row direction are blocked by one movable light-blocking layer respectively.
31. The display device according to claim 24 , wherein different images are displayed on the first display portion and the second display portion when the movable light-blocking layer is superposed with the opening portion.
32. The display device according to claim 1 , wherein the shutter-shaped light-blocking unit comprises a MEMS.