Display device and method of fabricating the same
View Patent ↗A constitution of the display device of the invention is shown in the following. The display device includes a pixel unit including TFTs of which the active layer contains an organic semiconductor material for forming channel portions in the opening portions in an insulating layer arranged to meet the gate electrodes. The pixel unit further includes a contrast media formed on the electrodes connected to the TFTs for changing the reflectivity upon the application of an electric field, or microcapsules containing electrically charged particles that change the reflectivity upon the application of an electric field. The pixel unit is sandwiched by plastic substrates, and barrier layers including an inorganic insulating material are provided between the plastic substrates and the pixel unit. The purpose of the present invention is to supply display devices which are excellent in productivity, light in weight and flexible.
1. An electronic paper display device comprising:
a barrier layer made of AlO x N 1-x or a silicon nitride over a substrate where x=0.01 to 0.2
a pixel electrode over the barrier layer;
a partitioning layer for sectionalizing neighboring pixels, the partitioning layer provided over an edge of the pixel electrode; and
an electronic ink layer over the partitioning layer and the pixel electrode through an opening portion of the partitioning layer.
2. The electronic paper display device according to claim 1 wherein a microcapsule contained in the electronic ink layer contains a particle of a given color that is positively charged and a particle of a different color that is negatively charged, the particles dispersed in a solvent contained in the microcapsule.
3. The electronic paper display device according to claim 1 wherein the barrier layer has a thickness of 10 to 100 nm.
4. The electronic paper display device according to claim 1 wherein the partitioning layer comprises an insulating material.
5. The electronic paper display device according to claim 1 wherein a material selected from the group consisting of carbon black and black pigment is dispersed in the partitioning layer.
6. The electronic paper display device according to claim 1 wherein the substrate is flexible.
7. An electronic paper display device comprising:
a barrier layer made of AlO x N 1-x or a silicon nitride over a substrate where x=0.01 to 0.2
a pixel electrode over the barrier layer;
a partitioning layer for sectionalizing neighboring pixels, the partitioning layer provided over an edge of the pixel electrode;
an electronic ink layer over the partitioning layer and the pixel electrode through an opening portion of the partitioning layer; and
a common electrode over the electronic ink layer.
8. The electronic paper display device according to claim 7 wherein a microcapsule contained in the electronic ink layer contains a particle of a given color that is positively charged and a particle of a different color that is negatively charged, the particles dispersed in a solvent contained in the microcapsule.
9. The electronic paper display device according to claim 7 wherein the barrier layer has a thickness of 10 to 100 nm.
10. The electronic paper display device according to claim 7 wherein the partitioning layer comprises an insulating material.
11. The electronic paper display device according to claim 7 wherein a material selected from the group consisting of carbon black and black pigment is dispersed in the partitioning layer.
12. The electronic paper display device according to claim 7 wherein the common electrode comprises a transparent conductive material.
13. The electronic paper display device according to claim 7 wherein the substrate is flexible.
14. An electronic paper display device comprising:
a barrier layer over a substrate;
a pixel electrode over the barrier layer;
a partitioning layer for sectionalizing neighboring pixels, the partitioning layer provided over an edge of the pixel electrode; and
an electronic ink layer over the partitioning layer and the pixel electrode through an opening portion of the partitioning layer.
15. The electronic paper display device according to claim 14 wherein a microcapsule contained in the electronic ink layer contains a particle of a given color that is positively charged and a particle of a different color that is negatively charged, the particles dispersed in a solvent contained in the microcapsule.
16. The electronic paper display device according to claim 14 wherein the barrier layer has a thickness of 10 to 100 nm.
17. The electronic paper display device according to claim 14 wherein the partitioning layer comprises an insulating material.
18. The electronic paper display device according to claim 14 wherein a material selected from the group consisting of carbon black and black pigment is dispersed in the partitioning layer.
19. The electronic paper display device according to claim 14 wherein the substrate is flexible.